techniques for power control using carrier aggregation in wireless communications

专利摘要:
Methods, systems, and devices for wireless communications are described that provide transmission management using multiple component carriers (CCs) in which transmissions using one or more of the CCs can span less than a full transmission time from one partition or other interval transmission time. A UE can signal an ability to transmit such transmissions, and one or more capacities related to carrier aggregation that can be used by a base station to program transmissions on different CCs. In the event that overlapping transmissions on two or more CCs exceed a maximum power limit, several techniques for discarding at least a portion of one or more transmissions from one or more CCs are described.
公开号:BR112020009845A2
申请号:R112020009845-0
申请日:2018-10-17
公开日:2020-10-13
发明作者:Xiao Feng Wang；Peter Gaal；Wanshi Chen；Seyedkianoush HOSSEINI；Tao Luo；Juan Montojo；Tingfang JI
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[0001] [0001] The present patent application claims priority to US Patent Application No. 15 / 974,372 by WANG et al., Entitled “TECHNIQUES FOR
[0002] [0002] The following generally refers to wireless communication, and more specifically to techniques for energy control using carrier aggregation in wireless communications.
[0003] [0003] Wireless communication systems are widely implemented to provide various types of communication content, such as voice, video, packet data, messages, transmission and so on. These systems may be able to support communication with multiple users, sharing available system resources (for example, time, frequency and energy).
[0004] [0004] Some wireless communication systems can support communication between a UE and a base station on multiple carriers of aggregate components (CCs), a feature called carrier aggregation. In some cases, a UE can transmit uplink signals on different carriers during transmission time intervals (TTIs) with different durations. In addition, the UE can transmit uplink signals according to a maximum transmit power limit. In such cases, however, it can be challenging for the UE to identify the appropriate uplink energy to be used for multiple DCs within the limits of a maximum transmit power limit. In addition, in some cases, UEs with different capacities associated with transmissions using multiple CCs may be present in a wireless communications system and therefore the uniform treatment of all UEs may not fully utilize the capabilities of some UEs. Thus, the efficient determination of the uplink transmission power and considerations about EU resources in network management can increase the efficiency of a wireless communications system. SUMMARY
[0005] [0005] The techniques described refer to improved methods, systems, devices or devices that support energy control techniques using carrier aggregation in wireless communications. Several techniques described provide transmission management using multiple component carriers (CCs), in which transmissions using one or more of the CCs can span less than a complete transmission time interval (TTI), such as a transmission partition, subframe or another TTI. In some cases, a UE may, according to some techniques described here, signal one or more capabilities related to carrier aggregation that can be used by a base station to schedule transmissions on different CCs. In some cases, an UE may signal an indication of a base station's capacity from an UE's capacity to support transmissions that have different start times or durations at different CCs.
[0006] [0006] In some cases, an UE may support CCs in which different CCs may belong to different timing advance groups (TAGs), so that the start times of TTIs (for example, symbols,
[0007] [0007] In some cases, an UE can also perform power control for multiple CCs to provide uplink transmission powers that meet the maximum power limit where transmissions from different CCs can have different start times, different stop times, different durations, or combinations thereof. In some cases, a UE may receive multiple uplink resource grants for a plurality of uplink transmissions on two or more CCs during a partition, and determine that a transmit power transmits the uplink transmissions that exceed the maximum power limit for the UE for at least a portion of the partition. The UE may, in response to that determination, discard at least a portion of a first uplink transmission from the number of uplink transmissions, where a resulting transmission power is less than or equal to the maximum power limit, and transmit transmissions from uplink remaining from the number of uplink streams during the partition using one or more of the CCs. In addition or alternatively, the UE may scale a transmission power from one or more of the
[0008] [0008] A wireless communication method is described. The method may include establishing, on a UE, a connection to a base station, the connection that supports two or more CCs within a TAG, identifying, on the UE, an ability to support transmissions that have different start times or durations at different CCs, and transmit a capacity indication to the base station.
[0009] [0009] A device for wireless communication is described. The apparatus may include means for establishing, in a UE, a connection to a base station, the connection that supports two or more CCs within a TAG, means for identifying, in the UE, a capacity to support transmissions that have different start times or durations at different CCs, and means for transmitting an indication of capacity to the base station.
[0010] [0010] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to make the processor establish, in a UE, a connection with a base station, the connection that supports two or more CCs within a TAG, identify, in the UE, an ability to support transmissions that have different transmission times. beginning or durations in different
[0011] [0011] A non-transitory, computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include operable instructions to make a processor establish, in a UE, a connection to a base station, the connection that supports two or more CCs within a TAG, to identify, in the UE, an ability to support transmissions that have different start times or durations at different CCs, and transmit an indication of capacity to the base station.
[0012] [0012] In some examples of the method, apparatus, and non-transitory computer-readable medium described above, identification comprises identifying the ability to support transmissions that may have different start times or durations for each of a plurality of different frequency bands or combinations of different frequency bands.
[0013] [0013] In some examples of the method, apparatus, and non-transient computer-readable medium described above, the ability to withstand different start times or durations for each of the plurality of different frequency bands or combinations of different frequency bands determined at least in part from the various RF chains available for transmissions in the UE. In some examples of the method, apparatus, and non-transient computer-readable medium described above, the plurality of different frequency bands or combinations of different frequency bands include contiguous intra-band carrier frequencies per RF Chain in the UE. In some examples of the method, apparatus, and non-transient computer readable medium described above, the plurality of different frequency bands or combinations of different frequency bands include intra-band or non-contiguous intra-band carrier frequencies for multiple RF strings. in the UE.
[0014] [0014] A wireless communication method is described. The method may include establishing, in a UE, a connection with a base station, the connection that supports two or more CCs within different TAGs, identifying, in the UE, an overlap limit corresponding to an amount of time that is exempt from a power control limit where a new transmission on a first DC of a first TAG can overlap with a last portion of an existing transmission on a second DC of a second TAG, and transmit an indication of the overlap limit to the base station .
[0015] [0015] A device for wireless communication is described. The apparatus may include means to establish, in a UE, a connection to a base station, the connection that supports two or more CCs within different TAGs, means to identify, in the UE, an overlap limit corresponding to an amount of time that is exempt from an energy control limit where a new transmission on a first DC of a first TAG can overlap with a last portion of an existing transmission on a second DC of a second TAG, and means for transmitting an indication of the limit overlay for the base station.
[0016] [0016] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to make the processor establish, in a UE, a connection with a base station, the connection that supports two or more CCs within different TAGs, identify, in the UE, an overlap limit corresponding to an amount of time which is exempt from an energy control limit in which a new transmission on a first DC of a first TAG can overlap with a last portion of an existing transmission on a second DC of a second TAG, and transmit an indication of the limit of overlay for the base station.
[0017] [0017] A non-transitory, computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include operable instructions to make a processor establish a connection to a base station in a UE, the connection that supports two or more CCs within different TAGs, to identify, in the UE, an overlap limit corresponding to an amount of time that is exempt from an energy control limit in which a new transmission on a first DC of a first TAG can overlap with a last portion of an existing transmission on a second DC of a second TAG, and transmit an indication of the overlap limit to the base station.
[0018] [0018] In some examples of the method,
[0019] [0019] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for receiving uplink resource grants for uplink transmissions on consecutive partitions on the first CC and the second CC. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for determining that a timing difference between the first CC and the second CC exceeds the overlap limit. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for modifying an uplink transmission from one or both of the first or second CC based at least in part on timing difference. The modification may include discarding a first DC transmission that ends at a partition boundary between consecutive partitions, discarding a second DC transmission that starts at the partition boundary, reducing a transmission power from the first DC transmission, the second DC transmission, or both,
[0020] [0020] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for selecting, before modification, the first DC transmission or the second DC transmission to be discarded or transmitted with reduced power based at least in part on a priority associated with each of the first DC transmission and the second DC transmission.
[0021] [0021] A wireless communication method is described. The method may include establishing a connection with an UE having two or more CCs within a TAG or in different TAGs, receiving an indication from the UE indicating whether the UE is capable of supporting transmissions that have different start times or durations at different CCs and an overlap limit corresponding to an amount of time that is exempt from an energy control limit in which a new transmission in a first CC of a first TAG can overlap with a last portion of an existing transmission in a second CC of a second TAG, schedule a plurality of uplink transmissions to the UE using the two or more CCs based at least in part on the indication and overlap limit, and transmit a plurality of uplink concessions to the UE that includes concessions of resource for the plurality of uplink transmissions.
[0022] [0022] A device for wireless communication is described. The apparatus may include means for establishing a connection with a UE having two or more CCs within a TAG or in different TAGs, means for receiving an indication from the UE that indicates whether the UE is capable of supporting transmissions that have different transmission times. start or duration in different CCs and an overlap limit corresponding to an amount of time that is exempt from an energy control limit in which a new transmission in a first DC of a first TAG can overlap with a last portion of a transmission existing in a second CC of a second TAG, means to program a plurality of uplink transmissions to the UE using the two or more CCs based at least in part on the indication and overlap limit, and means to transmit a plurality of concessions from uplink for the UE which includes resource grants for the plurality of uplink transmissions.
[0023] [0023] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to make the processor establish a connection with a UE having two or more CCs within a TAG or in different TAGs, receive an indication from the UE that indicates whether the UE is capable of supporting transmissions that have different times start times or durations in different CCs and an overlap limit corresponding to an amount of time that is exempt from an energy control limit in which a new transmission in a first CC of a first TAG can overlap with a last portion of a existing transmission on a second CC from a second TAG, schedule a plurality of uplink transmissions to the UE using the two or more CCs based at least in part on the indication and overlap limit, and transmit a plurality of uplink leases to the EU that includes resource concessions for the plurality of uplink broadcasts.
[0024] [0024] A wireless communication method is described. The method may include determining, in a UE, that a transmission power transmits a plurality of uplink transmissions through two or more component carriers (CCs) in a partition that exceeds a maximum power limit for the UE for at least one portion of the partition, discard at least a portion of a first uplink transmission from the plurality of uplink transmissions, where a resulting transmit power is less than or equal to the maximum power limit, and transmit remaining uplink transmissions from the plurality of transmissions uplink during partition using one or more of the CCs.
[0025] [0025] A device for wireless communication is described. The apparatus may include means for determining that a transmit power transmits a plurality of uplink transmissions over two or more CCs in a partition that exceeds a maximum power limit for the UE for at least a portion of the partition, means for discarding at least minus a portion of a first uplink transmission from the plurality of uplink transmissions, where a resulting transmit power is less than or equal to the maximum power limit, and means for transmitting remaining uplink transmissions from the plurality of uplink transmissions during the partition using one or more of the CCs.
[0026] [0026] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to make the processor determine that a transmit power transmits a plurality of uplink transmissions via two or more CCs in a partition that exceeds a maximum power limit for the UE during at least a portion of the partition, discard at least minus a portion of a first uplink transmission from the plurality of uplink transmissions, where a resulting transmit power is less than or equal to the maximum power limit, and transmit remaining uplink transmissions from the plurality of uplink transmissions during the partition using one or more of the CCs.
[0027] [0027] A non-transitory, computer-readable medium for wireless communication is described. The non-transient computer-readable medium may include instructions operable to make a processor determine that a transmit power transmits a plurality of uplink transmissions through two or more CCs on a partition that exceeds a maximum power limit for the UE for at least a portion of the partition, discard at least a portion of a first uplink transmission from the plurality of uplink transmissions, where a resulting transmission power is less than or equal to the maximum power limit, and transmit remaining uplink transmissions from the plurality of uplink streams during the partition using one or more of the CCs.
[0028] [0028] In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the determination can be performed for each symbol of a plurality of symbols in the partition. In some examples of the non-transitory computer-readable method, apparatus, and medium described above, determination and disposal can be performed by formatting the plurality of uplink transmissions for transmission during the partition.
[0029] [0029] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a priority associated with two or more overlapping uplink transmissions that may have an aggregate power that exceeds the maximum power limit. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may further include processes, resources, means, or instructions for discarding the first uplink transmission based at least in part on the first uplink transmission having a priority that can be less than a priority of another of the two or more overlapping uplink streams.
[0030] [0030] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may further include processes, resources, means, or instructions for identifying a first subset of uplink transmissions from the plurality of uplink transmissions that may have a first priority which can be less than at least a second priority of one or more other subsets of the plurality of uplink transmissions, the first subset including the first uplink transmission. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for determining that the first uplink transmission may have an associated first uplink transmission power that may be equal to or greater than a difference between the maximum power limit and an aggregate power from another of the plurality of uplink transmissions that can be overlaid with the first uplink transmission. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for discarding the first uplink transmission.
[0031] [0031] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first partition symbol in which overlapping uplink transmissions may have aggregate transmit power that exceeds the maximum power limit for the UE. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying one or more uplink streams from the overlapping uplink streams having a transmission start time that precedes the first symbol and that the first uplink transmission starts at the first symbol. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for discarding the first uplink transmission based at least in part on the first uplink transmission starting at the first symbol.
[0032] [0032] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first partition symbol in which a set of overlapping uplink transmissions may have a power aggregate transmission line that exceeds the maximum power limit for the UE. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first subset of the set of overlapping uplink transmissions that may have a first priority that may be lower than that at least a second priority of one or more other subsets of the set of overlapping uplink transmissions and that it can have a transmit power that can be equal to or greater than a difference between the maximum power limit and the aggregate transmit power . Some examples of the non-transitory computer-readable method, apparatus, and medium described above may further include processes, resources, means, or instructions for determining that the first uplink transmission may have a minimum power between the first subset of uplink transmissions. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for discarding the first uplink transmission.
[0033] [0033] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first partition symbol in which a set of overlapping uplink transmissions may have a power aggregate transmission line that exceeds the maximum power limit for the UE. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first subset of the set of overlapping uplink transmissions that may have a first priority that may be lower than than at least a second priority of one or more other subsets of the set of overlapping uplink transmissions. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for randomly selecting one or more uplink transmissions from the first subset to be discarded. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for discarding one or more selected uplink transmissions.
[0034] [0034] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first partition symbol in which a set of overlapping uplink transmissions may have a power aggregate transmission line that exceeds the maximum power limit for the UE. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions to identify that at least one uplink transmission from the set of overlapping uplink transmissions may have a first priority that can be higher than at least a second priority from one or more other uplink streams from the set of overlapping uplink streams. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for scaling a transmission power from at least one uplink transmission so that the UE's transmission power can be less than or equal to the maximum power limit.
[0035] [0035] In some examples of the method, apparatus, and non-transitory computer-readable medium described above, at least one uplink transmission includes HARQ feedback information, SR information or combinations thereof.
[0036] [0036] In some examples of the non-transitory computer-readable method, apparatus, and medium described above, the plurality of uplink transmissions include a first subset of uplink transmissions from a first timing advance group (TAG) and a second subset of uplink transmissions from a second timing advance group, the UE groups the first subset of uplink transmissions into a first subset of clustered uplink transmissions and the second subset of uplink transmissions into a second subset of clustered uplink transmissions, and discarding can be performed based on the grouped subsets of uplink transmissions and a priority of the grouped subset can be set to be a higher priority of transmissions in the subset.
[0037] [0037] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first partition symbol in which a set of overlapping uplink transmissions may have a power aggregate transmission line that exceeds the maximum power limit for the UE. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying a first subset of the set of overlapping uplink transmissions having a transmission start time that precedes the first symbol and a second subset of the set of overlapping uplink streams that start at the first symbol. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for determining an aggregate transmission power for the first subset.
[0038] [0038] In some examples of the non-transitory computer-readable method, apparatus, and medium described above, the two or more uplink transmissions from the second subset may have the highest priority, and the addition comprises randomly selecting one or all of the uplink streams of the two or more uplink streams to be added to the first subset. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for scaling, subsequent to repetition, a transmission power of one or more remaining uplink transmission to match the difference. between the maximum power limit and the updated aggregate transmission power.
[0039] [0039] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for discarding one or more transmissions from the first subset so that a transmission in the second subset can be added without exceeding the maximum power limit. In some examples of the method, apparatus, and non-transient computer-readable medium described above, discarding one or more transmissions from the first subset further comprises discarding all transmissions from the first subset that belong to the same timing advance group.
[0040] [0040] A wireless communication method is described. The method may include establishing, on a UE, a connection to a base station, the connection that supports two or more CCs, receiving a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition , where the plurality of leases is received at least for a predetermined time before a partition starts, determining that a transmission power transmits the plurality of uplink transmissions that exceed a maximum power limit to the UE for at least a portion of the partition, scale a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit, and transmit the plurality of uplink transmissions during the partition using one or more of the CCs.
[0041] [0041] A device for wireless communication is described. The apparatus may include means for establishing, in a UE, a connection to a base station, the connection that supports two or more CCs, means for receiving a plurality of uplink resource grants for a plurality of uplink transmissions in the two or more CCs during a partition, where the plurality of leases is received at least for a predetermined time before a partition starts, means for determining that a transmit power transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE for at least a portion of the partition, means for scaling a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit, and means for transmitting the plurality of uplink transmissions during the partition using one or more of the CCs.
[0042] [0042] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to make the processor establish, in a UE, a connection to a base station, the connection that supports two or more CCs, to receive a plurality of uplink resource grants for a plurality of uplink transmissions in the two or more CCs during a partition, where the plurality of leases is received at least for a predetermined time before a partition starts, determining that a transmission power transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition, scale a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit, and transmit the plurality of uplink transmissions uplink during the partition using one or more of the CCs.
[0043] [0043] A non-transitory, computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include operable instructions to make a processor establish a connection to a base station, the connection that supports two or more CCs, to receive a plurality of uplink resource grants for a plurality of uplink transmissions on two or more CCs during a partition, where the plurality of leases is received at least for a predetermined time before a partition starts, determining that a transmission power transmits the plurality of uplink transmissions that exceed a threshold maximum power to the UE for at least a portion of the partition, scale a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit, and transmit the plurality of uplink transmissions during the partition using one or more of the CCs.
[0044] [0044] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may further include processes, resources, means, or instructions for receiving an additional grant for an additional uplink transmission after the predetermined time and before the start of the partition. Some examples of the non-transitory, computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions to discard the responsive additional uplink transmission to determine that the additional uplink transmission would increase the aggregate transmission power of the EU above the maximum power limit. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may further include processes, resources, means, or instructions for transmitting the additional responsive uplink transmission to determine that the additional uplink transmission would not increase aggregate transmission power of the UE above the maximum power limit.
[0045] [0045] In some examples of the method, apparatus, and non-transient computer-readable medium described above, the predetermined time to receive the plurality of concessions can be pre-configured or signaled between the base station and the UE. In some examples of the non-transitory computer-readable method, apparatus, and medium described above, the predetermined time to receive the plurality of grants may be based at least in part on a UE capacity.
[0046] [0046] In some examples of the method, apparatus, and non-transitory computer-readable medium described above, a first CC of the two or more CCs belongs to a different timing advance group (TAG) than a second CC of the two or more CCs, and a partition start time for the first CC precedes an end time for a previous partition for the second CC. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for identifying, in the UE, an overlap limit corresponding to an amount of time that can be exempted from the maximum power limit for the UE. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for determining that an overlap period between the partition start time of the first CC and the partition end time second CC exceeds the overlap limit. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for discarding an overlapping uplink transmission from the first or second CC, or scaling the transmission power for uplink transmissions from each of the first DC and the second DC to provide an aggregate transmit power during the overlap period that can be less than or equal to the maximum power limit.
[0047] [0047] A wireless communication method is described. The method may include establishing, on a user device (UE), a connection to a base station, the connection that supports two or more component carriers (CCs), receiving a plurality of uplink resource grants for a plurality of transmissions uplink in the two or more CCs during a partition, where the plurality of grants is received at least for a predetermined time before a partition starts, identifying a first uplink transmission from the plurality of uplink transmissions has a first priority which is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission, determining a first transmission power of the first uplink transmission, scaling a second transmission power of the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a pot limit maximum frequency, and transmit the plurality of uplink transmissions during the partition using the two or more CCs.
[0048] [0048] A device for wireless communication is described. The apparatus may include means for establishing, on user equipment (UE), a connection to a base station, the connection that supports two or more component carriers (CCs), means for receiving a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, wherein the plurality of leases is received at least for a predetermined time before a partition starts, means for identifying a first uplink transmission from the plurality of uplink transmissions has a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission, means for determining a first transmission power of the first uplink transmission, means for scaling a second transmission power from the second uplink transmission so that an aggregate transmission power UE is less than or equal to a maximum power limit, and means to transmit the plurality of uplink transmissions during the partition using the two or more CCs.
[0049] [0049] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to make the processor establish, in a user equipment (UE), a connection to a base station, the connection that supports two or more component carriers (CCs), to receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of leases is received at least for a predetermined time before a partition starts, identifying a first uplink transmission from the plurality of uplink transmissions has a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission, determine a first transmission power of the first uplink transmission, scale a second transmission power of the second uplink transmission so that an aggregate transmission power of the UE is less than or equal to a maximum power limit, and transmit the plurality of uplink transmissions during the partition using two or more CCs.
[0050] [0050] A non-transitory, computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include instructions operable to make a processor establish, on user equipment (UE), a connection with a base station, the connection that supports two or more component carriers (CCs), to receive a plurality of uplink resource leases for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of leases is received at least for a predetermined time before a partition starts, to identify a first uplink transmission from plurality of uplink transmissions have a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission, determining a first transmission power of the first transmission uplink, scale a second transmission power from the second uplink transmission so that a p aggregate transmission power of the UE is less than or equal to a maximum power limit, and transmit the plurality of uplink transmissions during the partition using the two or more CCs.
[0051] [0051] Some examples of the non-transitory computer-readable method, apparatus, and medium described above may further include processes, resources, means, or instructions for determining a remaining power between the aggregated transmission power of the UE and the maximum power limit, identify a third uplink transmission that overlaps with the first uplink transmission and the second uplink transmission, and which may have a lower priority than the first priority and second priority. Some examples of the non-transitory computer-readable method, apparatus, and medium described above may also include processes, resources, means, or instructions for allocating the remaining power to the third uplink transmission.
[0052] [0052] In some examples of the method, apparatus, and non-transitory computer-readable medium described above, uplink transmissions that may have already started may have a higher priority than other uplink transmissions. In some examples of the non-transitory computer-readable method, apparatus, and medium described above, the plurality of uplink transmissions can be prioritized according to whether the uplink transmission can be an ongoing transmission, a type of uplink transmission, information to be transmitted, or any combination thereof.
[0053] [0053] In some examples of the method, apparatus, and non-transient computer-readable medium described above, the UE still scales more than one uplink transmission having the same priority such that an aggregated transmission power of the UE may be less than or equal to a maximum power limit. In some examples of the non-transitory computer-readable method, apparatus, and medium described above, each symbol of an uplink transmission during the partition can have the same transmission power. BRIEF DESCRIPTION OF THE DRAWINGS
[0054] [0054] Figure 1 illustrates an example of a wireless communication system that supports energy control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0055] [0055] Figure 2 illustrates an example of a portion of a wireless communication system that supports energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0056] [0056] Figure 3 illustrates an example of wireless features for multiple component carriers that support energy control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0057] [0057] Figure 4 illustrates an example of frequency hopping on one or more component carriers that supports energy control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0058] [0058] Figure 5 illustrates an example of overlapping wireless features for multiple component carriers that support power control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0059] [0059] Figure 6 illustrates an example of an overlap limit for transmissions from multiple timing advance groups that support energy control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0060] [0060] Figure 7 illustrates an example of different types of transmission on different component carriers that support techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0061] [0061] Figure 8 illustrates an example of energy control through discarding transmissions using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0062] [0062] Figure 9 illustrates an example of a resource grant timeline that supports energy control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure.
[0063] [0063] Figure 10 illustrates an example of a method that supports techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0064] [0064] Figure 11 illustrates an example of another method that supports techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0065] [0065] Figure 12 illustrates an example of another method that supports techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0066] [0066] Figures 13 to 15 show block diagrams of a device that supports techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0067] [0067] Figure 16 illustrates a block diagram of a system including an UE that supports techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0068] [0068] Figures 17 to 19 show block diagrams of a device that support techniques for energy control using carrier aggregation in wireless communications in accordance with the aspects of the present disclosure.
[0069] [0069] Figure 20 illustrates a block diagram of a system including a base station that supports techniques for energy control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure.
[0070] [0070] Figures 21 to 25 illustrate methods for energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. DETAILED DESCRIPTION
[0071] [0071] Several techniques described in this document provide management for transmissions using multiple component carriers (CCs) in which transmissions using one or more of the CCs can span less than a complete transmission time interval (TTI) as a transmission partition, subframe, or other TTI. In some cases, an UE may signal one or more carrier aggregation-related capabilities that can be used by a base station to allow for enhanced programming flexibility at the base station. In some cases, an UE may signal an indication of a base station's capacity from an UE's capacity to support transmissions that have different start times or durations at different CCs. The base station can then schedule transmissions to the UE where transmissions on different CCs can have different start times or durations, which can provide enhanced scheduling flexibility, improved communications with the UE, and increased network efficiency.
[0072] [0072] In some cases, a UE may support CCs in which different CCs may belong to different timing advance groups (TAGs) so that TTI start times (for example, symbols, partitions, subframes, combinations thereof) ) can be out of sync to a certain extent. Such synchronization deviations can result in transmission powers in a UE having transient values that can exceed a maximum power limit, and in some cases a UE can provide an indication to a UE of an overlap limit which indicates an amount of time that transmission power of the UE may exceed the maximum power limit. A base station can use such an overlap limit and program a UE for transmissions using multiple CCs that can be in different TAGs, which can provide additional programming flexibility for the base station.
[0073] [0073] In some cases, an UE can also perform power control for several CCs to provide uplink transmission powers that comply with maximum power limits where transmissions from different CCs can have different start times, different stop times, different durations, or combinations thereof. In some cases, a UE may receive multiple uplink resource grants for a plurality of uplink transmissions on two or more CCs during a partition, and determine that a transmit power transmits the uplink transmissions that exceed the maximum power limit for the UE for at least a portion of the partition. The UE can, responsive to such a determination, discards at least a portion of a first uplink transmission from the number of uplink transmissions, where a resulting transmission power is less than or equal to the maximum power limit, and transmits uplink transmissions remaining number of uplink streams during the partition using one or more of the CCs. In addition or alternatively, the UE may scale a transmission power from one or more of the DCs to at least a portion of the partition so that the transmission power of the UE is less than or equal to the maximum power limit. In some cases, the UE may perform an anticipated power scale for uplink leases received at least a predetermined time before a partition starts.
[0074] [0074] Aspects of disclosure are initially described in the context of a wireless communications system. Aspects of the disclosure are further illustrated by and described with reference to device diagrams, system diagrams, wireless feature illustrations, and flowcharts that refer to techniques for power control using carrier aggregation in wireless communications.
[0075] [0075] Figure 1 illustrates an example of a wireless communications system 100 in accordance with various aspects of the present disclosure. The wireless communications system 100 includes base stations 105, UEs 115, and a primary network 130. In some instances, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE- Advanced (LTE-A), or a new Radio (NR) network. In some cases, the wireless communications system 100 can support enhanced broadband communications, ultra-reliable communications (for example, mission critical), low latency communications, or communications with low cost and low complexity devices. In some cases, UEs 115 and base stations 105 can communicate using multiple CCs, where one or more of the CCs can be used to transmit transmissions having different durations, different start times, different end times, or any combination of them .
[0076] [0076] Base stations 105 can communicate wirelessly with UEs 115 through one or more antennas of the base station. The base stations 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), an Next generation B node or giga-nodeB (one of which may be referred to as a gNB), a NodeB, a household eNodeB, or some other suitable terminology. Wireless communications system 100 may include base stations 105 of different types (for example, macro or small cell base stations). The UEs 115 described here may be able to communicate with various types of base stations 105 and network equipment including macro eNBs, small cell eNBs, gNBs, relay base stations, and the like.
[0077] [0077] Each base station 105 can be associated with a specific geographic coverage area 110 in which communications with several UEs 115 is sustained. Each base station 105 can provide communication coverage for a respective geographic coverage area 110 via communication links 125, and communication links 125 between a base station 105 and an UE 115 can use one or more carriers. The communication links 125 shown on the wireless communication system 100 can include uplink transmissions from an UE 115 to a base station 105, or downlink transmissions from a base station 105 to an UE 115. Downlink transmissions can also be called forward link transmissions while uplink transmissions can also be called reverse link transmissions.
[0078] [0078] Geographic coverage area 110 for a base station 105 can be divided into sectors that constitute only a portion of geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macro cell, a small cell, a hot spot, or other types of cells, or various combinations thereof. In some examples, a base station 105 may be mobile and therefore provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographical coverage areas 110 associated with different technologies may overlap, and coverage areas overlapping geographic 110 associated with different technologies can be supported by the same base station 105 or different base stations 105. Wireless communication system 100 can include, for example, a heterogeneous LTE / LTE-A or NR network in which different types base stations 105 provide coverage for various geographic coverage areas 110.
[0079] [0079] The term "cell" refers to a logical communication entity used to communicate with a base station 105 (for example, over a carrier), and can be associated with an identifier to distinguish neighboring cells (for example, an identifier physical cell (PCID), a virtual cell identifier (VCID) operating through the same or a different carrier. In some examples, a carrier can support several different cells and different cells can be configured according to different types of protocol (for example, machine type communication (MTC), narrowband Internet of Things (NB-IoT), broadband enhanced mobile (eMBB) or others) that can provide access for different types of devices. In some cases, the term “cell” may refer to a part of the geographic coverage area 110 (for example, a sector) on which the logical entity operates.
[0080] [0080] UEs can be dispersed throughout the wireless communication system 100 and each UE 115 can be stationary or mobile. An UE 115 can also be referred to as a mobile device, wireless device, remote device, portable device or subscriber device or some other suitable terminology, where the “device” can also be termed as a unit, a station, a terminal or a client. An UE 115 can also be a personal electronic device, such as a cell phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some instances, an UE 115 may also refer to a local wireless loop station (WLL), an Internet of Things (IoT) device, an Internet of Everything (IoE) device or an MTC device, or the like, which may be implemented in various items, such as appliances, vehicles, meters, or the like.
[0081] [0081] Some UEs 115, such as MTC or IoT devices, can be low-cost or low-complexity devices and can provide automated communication between machines (for example, via machine-to-machine (M2M) communication). M2M or MTC communication can refer to data communication technologies that allow devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M or MTC communication may include communications from devices that integrate sensors or meters to measure or capture information and relay it to a central server or application program that can make use of the information or present the information to humans who interact with the program or application. Some UEs 115 can be designed to collect information or allow automated machine behavior. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, wildlife monitoring, monitoring of climatic and geological events, fleet management and tracking, detection and fleet security, remote security sensing, physical access control, and transaction-based business charging.
[0082] [0082] In some cases, a UE 115 can also communicate directly with other UEs 115 (for example, using a point-to-point protocol (P2P) or device to device (D2D)). One or more of a group of UEs 115 using D2D communications may be within the geographical coverage area 110 of a base station 105. Other UEs 115 in that group may be outside the geographical coverage area 110 of a base station 105 or may be within otherwise unable to receive transmissions from a base station 105. In some cases, groups of UEs 115 communicating via D2D communication may use a one-to-many (1: M) system in which each UE 115 transmits to all others EU 115 of the group. In some cases, a base station 105 makes it easy to program resources for D2D communications. In other cases, D2D communications are carried out between UEs 115 without the involvement of a base station 105.
[0083] [0083] The base stations 105 can communicate with the main network 130 and with each other. For example, base stations 105 can interface with main network 130 via backhaul links 132 (for example, via an S1 or other interface). Base stations 105 can communicate with each other on backhaul links 134 (for example, via an X2 or other interface) directly (for example, directly between base stations 105) or indirectly (for example, via main network 130 ).
[0084] [0084] The core network 130 can provide user authentication, access authorization, tracking, IP connectivity (Internet Protocol) and other access, routing or mobility functions. Core network 130 can be an evolved packet core (EPC), which can include at least one mobility management entity (MME), at least one service gateway (S-GW) and at least one data packet gateway network (PDN) (P-GW). MME can manage stratum functions without access (for example, control plan), such as mobility, authentication and bearer management for UEs 115 served by base stations 105 associated with EPC. User IP packets can be transferred via S-GW, which can be connected to P-GW. P-GW can provide IP address allocation, in addition to other functions. The P-GW can be connected to the IP services of the network operators. Operators' IP services may include Internet access, Intranet (s), an IP multimedia subsystem (IMS) or a packet switching (PS) streaming service.
[0085] [0085] At least some of the network devices, such as a base station 105, may include subcomponents, such as an access network entity, which can be an example of an access node controller (ANC). Each access network entity can communicate with UEs 115 through a series of other access network transmission entities, which can be referred to as a radio head, an intelligent radio head or a transmit / receive point ( TRP). In some configurations, various functions of each access network entity or base station 105 can be distributed across multiple network devices (for example, radio heads and access network controllers) or consolidated into a single network device (for example , a base station 105).
[0086] [0086] The wireless communications system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz region is known as the ultra-high frequency region ( UHF) or decimeter band, since the wavelengths vary from approximately one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental resources. However, the waves can penetrate the structures enough for a macro cell to provide service to the 115 UEs located inside the home. The transmission of UHF waves may be associated with smaller antennas and shorter range (for example, less than 100 km) compared to transmission using lower frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) ) of the spectrum below 300 MHz.
[0087] [0087] The wireless communications system 100 can also operate in a super high frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as centimeter band. The SHF region includes bands such as the 5 GHz industrial, scientific and medical (ISM) bands, which can be used opportunistically by devices that can tolerate interference from other users.
[0088] [0088] The wireless communications system 100 can also operate in an extremely high frequency (EHF) region of the spectrum (for example, from 30 GHz to 300 GHz), also known as the millimeter band. In some instances, the wireless communications system 100 can support millimeter wave (mmW) communications between UEs 115 and base stations 105, and the EHF antennas of the respective devices may be even smaller and more widely spaced than UHF antennas. In some cases, this can facilitate the use of antenna sets within an UE 115. However, the spread of EHF transmissions may be subject to even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. . The techniques disclosed herein may be used in broadcasts that use one or more different frequency regions, and the designated use of bands in those frequency regions may differ by country or regulatory agency.
[0089] [0089] In some examples, the base station 105 or UE 115 can be equipped with multiple antennas, which can be used to use techniques such as diversity of transmission, diversity of reception, communications of multiple input multiple output (MIMO), or conformation of beam. For example, wireless communications system 100 may use a transmission scheme between a transmission device (for example, a base station 105) and a receiving device (for example, a UE 115), where the transmission device is equipped with multiple antennas and the receiving devices are equipped with one or more antennas. MIMO communications can use multipath signal propagation to increase spectral efficiency when transmitting or receiving multiple signals across different spatial layers, which can be termed as spatial multiplexing. The multiple signals can, for example, be transmitted by the transmission device via different antennas or different combinations of antennas. Likewise, multiple signals can be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be termed as a separate spatial stream, and can carry bits associated with the same data stream (for example, the same code word) or different data streams. Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single user MIMO (SU-MIMO) where multiple spatial layers are transmitted to the same receiving device, and multiple user MIMO (MU-MIMO) where multiple spatial layers are transmitted to multiple devices.
[0090] [0090] In some cases, wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. At the user level, communications on the carrier or packet data convergence protocol layer (PDCP) can be IP-based. A radio link control layer (RLC) can, in some cases, perform the segmentation and reassembly of packets to communicate over logical channels. A medium access control (MAC) layer can perform priority handling and multiplexing of logical channels on transport channels. The MAC layer can also use the hybrid automatic retry request (HARQ) to provide retransmission at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide for the establishment, configuration and maintenance of an RRC connection between an UE 115 and a base station 105 or main network 130 or network radio bearers support 130 for user plan data. In the Physical layer (PHY), transport channels can be mapped to physical channels.
[0091] [0091] In some cases, UEs 115 and base stations 105 can support data retransmissions to increase the likelihood of data being received successfully. HARQ feedback is a technique to increase the likelihood that data will be received correctly over a communication link 125. HARQ may include a combination of error detection (for example, using a cyclic redundancy check (CRC)), direct error correction (FEC) and retransmission (for example, automatic retry request (ARQ)). HARQ can improve the throughput at the MAC layer in poor radio conditions (for example, signal to noise conditions). In some cases, a wireless device can support HARQ feedback on the same partition, where the device can provide HARQ feedback on a specific partition for data received on an earlier symbol on the partition. In other cases, the device can provide HARQ feedback on a subsequent partition or according to another time interval.
[0092] [0092] Time intervals in LTE or NR can be expressed in multiples of a basic time unit, which can, for example, refer to a sampling period of Ts = 1 / 30,720,000 seconds. The time intervals of a communication resource can be organized according to the radio frames, each with a duration of 10 milliseconds (ms), in which the frame period can be expressed as Tf = 307,200 Ts. Radio frames can be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame can include 10 subframes numbered 0 to 9, and each subframe can have a duration of 1 ms. A subframe can further be divided into 2 partitions, each lasting 0.5 ms, and each partition can contain 6 or 7 modulation symbol periods (for example, depending on the length of the cyclic prefix preceded by each symbol period ). Excluding the cyclic prefix, each symbol period can contain 2048 sampling periods. In some cases, a subframe may be the smallest programming unit of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In other cases, a smaller programming unit of the wireless communications system 100 may be shorter than a subframe or may be selected dynamically (for example, in bursts of shortened TTIs (sTTIs) or in carriers of selected components using sTTIs.
[0093] [0093] In some wireless communication systems, a partition can be further divided into multiple mini-partitions containing one or more symbols. In some cases, a mini-partition or mini-partition symbol may be the smallest programming unit. Each symbol can vary in duration depending on the subcarrier spacing or operating frequency band, for example. In addition, some wireless communications systems may implement partition aggregation in which multiple partitions or mini-partitions are aggregated together and used for communication between an UE 115 and a base station 105.
[0094] [0094] The term "bearer" refers to a set of radio frequency spectrum resources having a physical layer structure defined to support communications over a communication link 125. For example, a bearer of a communication link 125 may include a portion of a radio frequency spectrum band that is operated according to the channels of the physical layer for a given radio access technology. Each channel of the physical layer can carry user data, control information or other signaling. A carrier can be associated with a predefined frequency channel (for example, an absolute number of E-UTRA radio frequency channel (EARFCN)) and can be positioned according to a channel scan for discovery by UEs 115. The carriers they can be downlinked or uplinked (for example, in FDD mode) or configured to perform downlink and uplink communications (for example, in TDD mode). In some examples, signal waveforms transmitted by a carrier can be composed of several subcarriers (for example, using multiple carrier modulation techniques (MCM), such as OFDM or DFT-s-OFDM).
[0095] [0095] The organizational structure of the operators may be different for different radio access technologies (for example, LTE, LTE-A, NR, etc.). For example, communications through a carrier can be organized according to TTIs or partitions, each of which can include user data, as well as control or signaling information to support the decoding of user data. A carrier may also include dedicated acquisition signaling (for example, synchronization signals or system information, etc.) and control signaling that coordinates the operation for the carrier. In some examples (for example, in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers.
[0096] [0096] Physical channels can be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel can be multiplexed on a downlink carrier, for example, using time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques or hybrid TDM techniques - FDM. In some examples, control information transmitted over a physical control channel can be cascaded between different control regions (for example, between a common control region or a common research space and one or more control regions specific EU or specific EU research spaces).
[0097] [0097] A carrier may be associated with a specific bandwidth of the radio frequency spectrum and, in some instances, the carrier bandwidth may be referred to as the carrier's "system bandwidth" or the wireless communications system 100. For example, the carrier bandwidth can be one of several predetermined bandwidths for carriers of a particular radio access technology (for example, 1.4, 3, 5, 10, 15, 20, 40 or 80 MHz). In some instances, each UE 115 served can be configured to operate over portions or the entire carrier bandwidth. In other examples, some UEs 115 can be configured for operation using a type of narrowband protocol that is associated with a predefined portion or range (for example, set of subcarriers or RBs) within a carrier (for example, deployment “in bandwidth ”of a narrowband protocol).
[0098] [0098] Wireless communication system devices 100 (e.g., base stations 105 or UEs 115) may have a hardware configuration that supports communications over a specific carrier bandwidth, or may be configurable to support communications over of one of a set of carrier bandwidths. In some examples, wireless communications system 100 may include base stations 105 and / or UEs that can support simultaneous communications through carriers associated with more than a different carrier bandwidth.
[0099] [0099] The wireless communication system 100 can support communication with a UE 115 in multiple cells or carriers, a feature that can be termed as carrier aggregation (CA) or multi-carrier operation. A UE 115 can be configured with multiple downlink CCs and one or more uplink CCs according to a carrier aggregation configuration. Carrier aggregation can be used with both FDD and TDD component carriers.
[0100] [0100] In some cases, the wireless communications system 100 may use enhanced component carriers (eCCs). An eCC can be characterized by one or more features, including higher carrier bandwidth or frequency channel, shorter symbol duration, shorter TTI duration or modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (for example, when multiple service cells have a suboptimal or not optimal backhaul backhaul link). An eCC can also be configured for use on unlicensed or shared spectrum (for example, where more than one operator can use the spectrum). An eCC characterized by broad carrier bandwidth may include one or more segments that can be used by UEs 115 that are not able to monitor all carrier bandwidth or are configured to use limited carrier bandwidth (for example, example, to save energy).
[0101] [0101] In some cases, an eCC may use a different symbol duration than other CCs, which may include the use of a reduced symbol duration compared to the symbol durations of the other CCs. A shorter symbol life may be associated with increased spacing between adjacent subcarriers. A device, such as a UE 115 or base station 105, that uses eCCs can transmit broadband signals (for example, according to the bandwidth of the frequency channel or the carrier of 20, 40, 60, 80 MHz, etc. .) with short symbol durations (for example, 16.67 microseconds). An eCC TTI can consist of one or more symbol periods. In some cases, the duration of the TTI (that is, the number of symbol periods in a TTI) can be variable.
[0102] [0102] Wireless communication systems, like an NR system, can use any combination of licensed, shared and unlicensed spectrum bands, among others. The flexibility of the duration of the eCC symbol and the spacing between subcarriers may allow the use of eCC in various spectra. In some instances, the shared NR spectrum can increase spectrum utilization and spectral efficiency, specifically through the dynamic vertical sharing of resources (eg through frequency) and horizontal (eg through time).
[0103] [0103] In some cases, UEs 115 and base stations 105 can communicate using two or more CCs, and several techniques described in this document provide transmissions using one or more of the CCs that can span less than a full TTI (for example , a partition, subframe, or other TTI). In some cases an UE 115 may signal capabilities to a base station 105 related to the UE 115's ability to transmit uplink transmissions that have different start times or durations at different CCs and to support different TAGs at different CCs. A serving base station 105 can then schedule transmissions to the UE 115 where transmissions on different CCs can have different start times or durations, and where different CCs can be associated with different TAGs. Such techniques can provide enhanced programming flexibility, improved communications with the UE 115, and increased network efficiency.
[0104] [0104] In some cases, an UE 115 can also perform power control for multiple CCs to provide uplink transmission powers that comply with maximum power limits where transmissions from different CCs can have different start times, different stop times, different durations, or combinations thereof.
[0105] [0105] Figure 2 illustrates an example of a portion of a wireless communication system 200 that supports techniques for power control using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. Wireless communication system 200 may include base station 105-a and UE 115-a, which can be examples of a base station 105 and a UE 115 described with reference to Figure 1. In some examples, base station 105-a may be in communication with one or more UEs 115 within the geographic coverage area 110-a. The wireless communication system 200 can implement aspects of wireless communication system 100. For example, the wireless communication system 200 can support carrier aggregation, and the base station 105-a can communicate with UE 115-a in features of multiple component 205 carriers, including a first component carrier 205-a, a second component carrier 205-b, through an n-th component carrier 205-n. In some cases, transmission durations, transmission start times, final transmission times, or combinations thereof, may be different for different 205 component carriers.
[0106] [0106] When using multiple 205 CCs in carrier aggregation communications between UE 115-a and base station 105-a, it may be beneficial, in some cases, for base 105-to program transmissions on one or more 205 CCs that it does not cover an entire partition or another TTI. The UE 115-a in these cases, however, may not be able to change the power settings on a power amplifier (PA) that is on a transmit / receive chain during a transmission on a DC
[0107] [0107] In order to prepare and transmit using several 205 CCs in a specific partition, the UE 115-a may take a certain amount of time during which it can calculate the power settings for the different transmissions. In some cases, certain timeline requirements can be provided for the UE 115-to perform such calculations for different duration transmissions on different 205 CCs during a partition and, therefore, in some cases, programming information and control commands of energy for a partition can be supplied to the UE 115-a for a predetermined time before the start of a partition. Such timeline requirements can also provide the UE 115 with sufficient time to generate digital data for the associated transmissions.
[0108] [0108] UE 115-a may also have certain transmitter architecture features that can affect transmissions across multiple CCs 205. In some cases, UE 115-a may have a single FFT / IFFT mechanism and shared RF chains for transmissions across multiple CCs
[0109] [0109] Figure 3 illustrates an example of wireless features for multiple component 300 carriers that support power control techniques using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, wireless features for multiple component carriers 300 can be implemented in aspects of wireless communication system 100 or 200.
[0110] [0110] As discussed above, UEs (for example, UEs 115 of Figures 1 or 2) and base stations (for example, base stations 105 of Figures 1 or 2) can use multiple CCs in an AC mode, where transmissions on one or more of the CCs may have different start times, different downtimes, different durations, or combinations of them, within a specific partition or other TTI. In the example in Figure 3, a first CC 305 and a second CC 310 can be configured for transmissions during a partition 330. In this case, a first transmission 315 can start at the beginning of partition 330 on the first CC 305, and can stop at some point before the end of partition 330. In this example, a second transmission 320 can start at the first CC 305 after the first transmission 315 ends, and can end at the end of partition 330. A third transmission 325 can start at the beginning of partition 330 on the second CC 310, and can end before the end of partition 330. In this example, the transmission power of the UE would be the transmission power of the first transmission 315 and the third transmission 325 for the first portion of partition 330, and only the transmission power of the second transmission 320 for the last portion of partition 330. Thus, unless simultaneous transmissions overlap completely (ie, have the same start time and duration), change Power s can occur in the middle of a transmission.
[0111] [0111] In some cases, an UE may not be able to withstand such changes in total power within a transmission. According to some techniques provided in this document, a UE can provide a base station with an indication of whether the UE supports overlapping transmissions within a TAG that do not start at the same time, or have different durations. In some cases, the UE may provide such an indication in a capacity report that is transmitted to the base station when establishing a connection that supports multiple CCs. In some cases, the capacity of the UE may be reported by band, by band combination, or combinations thereof. A base station can receive such a UE capacity report and schedule transmissions to the UE based on the UE's capacity to support overlapping transmissions that have different start times, different downtimes, different durations, or combinations thereof.
[0112] [0112] Figure 4 illustrates an example of frequency hopping on one or more component 400 carriers that supports energy control techniques using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, frequency hopping on one or more carriers of component 400 can be implemented in aspects of wireless communication system 100 or 200.
[0113] [0113] In this example, a first CC 405 and a second CC 410 can be programmed for transmissions within a 440 partition. First transmissions of CC 415, in this example, can use frequency hopping between different frequencies within partition 440, and second CC 420 transmissions may not jump. In this example, DMRS 425 transmissions can be provided in the first transmissions of CC 415 and in the second transmissions of DC 420. When performing frequency hopping, in some cases an UE may consider a PUSCH / PUCCH with intrapartition frequency hopping like two streams. In other cases, a UE may consider an intra-partition frequency hopped PUSCH / PUCCH as two transmissions unless all other simultaneous transmissions have DMRS symbols in both time segments (for example, as illustrated in Figure 4) , which may mean that a receiver will not assume the same power levels as the two segments. In other cases, the UE may consider a frequency hopped PUSCH / PUCCH as a transmission. In this case, the UE can consider the impact on the transmission power, if any, of the frequency jump, before the transmission starts.
[0114] [0114] Figure 5 illustrates an example of wireless features and transmissions for multiple component 500 carriers using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, the wireless features and transmissions for multiple component carriers 500 can be implemented in aspects of wireless communication system 100 or 200.
[0115] [0115] In this example, a UE can be configured with a first CC 505, a second CC 510, and a third CC 515 and can be programmed with a first transmission 530 on the first CC 505 which is to be transmitted only during a partition portion 550. The UE can also be programmed with a second transmission 535 and a third transmission 540 on the second CC 510. The UE can also be programmed with a fourth transmission 545 on the third CC 515. In this example, the second transmission 535, third transmission 540 , and fourth transmission 545 can be PUSCH transmissions 520, and the first transmission 530 can be PUCCH transmission 525. As indicated above, a transmission power of the UE can thus change during the partition
[0116] [0116] In some cases, the disposal or scaling of transmission powers can be carried out based at least in part on a priority associated with the transmission. In some examples, different transmissions or channels can be assigned a priority level depending on the types of channel (for example, PUCCH, PUSCH) and / or the type of uplink control information (UCI) they carry. In some cases, the priority levels for different transmissions or channels, or type of UCI, can be signaled to the UE by the base station, or can be pre-configured. For example, PUCCH 525 transmissions can be assigned a higher priority than PUSCH 520 transmissions. In such cases, if the aggregate power of P2 + P1 + P4> Pcmax, then the UE can reduce P2 and P4 and leave P1 unchanged due to being the transmission power for the highest priority transmission. Likewise, if P4 + P3 + P1> Pcmax, the UE can reduce P3 and P4. The reduced powers can be reduced enough to provide a total transmission power equal to or less than Pcmax. In addition, in some cases, the fourth transmission 545 may be assigned a lower priority than the third transmission 540 (for example, based on a supported service or data transmitted by the third transmission 540). In such cases, the transmission power P4 would be scaled more than P3.
[0117] [0117] Figure 6 illustrates an example of an overlap limit for transmissions from multiple timing advance groups 600 that support techniques for power control using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some instances, the overlap limit for transmissions from multiple timing advance groups 600 may be implemented in aspects of wireless communication system 100 or 200. As indicated above, in some cases a UE may have a transmission capacity in several CCs that are in different TAGs, which can result in partition boundaries being misaligned for up to a certain time (for example, 30 µs), depending on a distance between the UE and the specific base station.
[0118] [0118] Thus, in the case of several TAGs being present for different CCs, certain parts of the uplink transmissions can be overlapped due to the misalignment of the symbols. In the example in Figure 6, a first CC 605 can be in a first TAG that uses a first time advance (TA) and a second = CC 610 can be in a second TAG that uses a second time advance. In this case, the second CC 610 can have a first transmission 620 that ends at the symbol i-1 and can have a second transmission 625 that starts at the symbol i. The first CC 605 can have a transmission that starts at the symbol ie, due to different ATs of the first TAG and the second TAG, the initial limit of the symbol i is not aligned, resulting in an overlap period 630 during which the first transmission of CC 615 overlaps with the first transmission 620 of the second CC 610.
[0119] [0119] When performing energy control for symbol i, the UE can consider the second transmission 625 of the second DC 610 and the transmission 615 of the first DC 605, and can define transmission powers accordingly so that, during symbol i, power of UE transmission does not exceed a maximum transmission power limit (Pcmax). However, because the UE does not account for the transmission of symbol i when the first transmission 620 of the second DC 610 ends at the symbol i-1, the transmission power during the overlap period 630 may exceed Pcmax. In such cases, the increase in collision transmissions can be considered and, in some cases, transmission 615 from the first CC 605 may be interrupted. In some cases, the UE may be able to skip overlapping period 630 for power control due to timing differences between different TAGs if the overlapping portion is less than a Y limit value. In some cases, the UE may report this limit value Y to the base station, which can be used to help carry out network programming. In some cases, the value of the limit value Y may depend on the resources of the UE, hardware present in the UE or combinations thereof.
[0120] [0120] Figure 7 illustrates an example of a different type of transmission on different component 700 carriers that supports techniques for power control using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, different types of transmission on different component carriers 700 can be implemented in aspects of wireless communication system 100 or 200.
[0121] [0121] In the example in Figure 7, several different transmissions, such as PUCCH 715 transmissions, and SRS 725 transmissions can have varying durations, resulting in partially overlapping transmissions for a first CC 705 and a second CC 710. The power setting Transmission of a symbol may require knowledge of all transmissions in a partition, unless some of the transmissions are discarded, in order to provide overlapping transmissions that do not exceed Pcmax. For example, in case 1 a UE can transmit different PUCCH 715 transmissions on the first CC 705 while transmitting a single PUSCH 720 transmission on the second CC 710 which covers the entire partition 730. The UE in that case can consider PUCCH 715 transmissions on in conjunction with PUSCH 720 transmissions when performing transmission power calculations for partition 730.
[0122] [0122] In case 2, the UE can transmit PUSCH 720 transmission during a first portion of partition 735 using the first CC 705 and a transmission of PUCCH 715 during a last portion of partition 735 using the first CC 705, while transmitting the transmission of PUSCH 720 using the second CC 710 which covers the entire partition 735. In case 3, the UE can transmit, in partition 740, the transmission of PUSCH 720 during a first portion of partition 740 and a transmission of SRS 725 during a last portion from partition 740 on the first CC 705, and can transmit the SRS 725 transmission on the second CC 710 which overlaps with the SRS 725 transmission from the first CC 705. In case 4, the UE can transmit the PUSCH 720 transmission and transmission from PUCCH 715 on the first CC 705 during partition 745, and can transmit SRS transmission 725 on the second CC 710 during a last portion of the partition
[0123] [0123] Figure 8 illustrates an example of power control by discarding 800 transmissions using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some instances, energy control by discarding 800 transmissions can be implemented in aspects of wireless communication system 100 or 200.
[0124] [0124] In this example, a UE can be configured with a first CC 805 and a second CC 810, and can be programmed with a first transmission 825 on the first CC 805 which should be transmitted only during a portion of partition 845. The UE also can be programmed with a second transmission 830 and a third transmission 835 on the second CC 810. In this example, the second transmission 830 and third transmission 835 can be PUSCH transmissions 815, and the first transmission 825 can be a PUCCH transmission 820. As indicated above, a transmission power of the UE may thus change during partition 845. In this example, the first transmission 825 may have a first transmission power P1, the second transmission 830 may have a second transmission power P2, and the third transmission can have a third transmission power P3. Thus, in this case, a first transmission power corresponding to P2 of the second transmission 830 can be present at the beginning of partition 845, which can increase to a transmission power of P1 + P2 when the first transmission 825 starts, it can discard to only P1 when the second transmission 830 stops, and increase to P1 + P3 when the third transmission 835 starts. In some cases, the total transmission power may exceed Pcmax, as if P1 + P2 or P1 + P3 are greater than Pcmax. In such cases, according to various techniques provided here, all or a portion of some transmissions can be discarded if the transmission power of the total UE exceeds Pcmax.
[0125] [0125] In some cases, different transmissions may be prioritized, and lower priority transmissions may be discarded in the event that the total transmission power of the UE exceeds the maximum transmission power limit (for example, Pcmax). In some cases, a determination of total transmission power may be made on a symbol-by-symbol basis within a partition, and no additional timeline requirements may be required. In some cases, an UE may discard only a portion of a transmission. In the example of Figure 8, if P2 + P1> Pcmax, the UE can discard a portion 840 of the second transmission 830 that overlaps with the first transmission 825. Likewise, if P3 + P1> Pcmax, the UE can discard the third transmission 835. In some cases, when the UE discards a symbol from a transmission, it can discard all subsequent symbols from that transmission to the partition. Thus, even if the first transmission 825 stops before the end of partition 845, the UE will not begin transmitting the third transmission 835 once the determination to discard the first symbol of the third transmission 835 has been made. In some cases, different iterative methods can be used to identify whether overlapping transmissions exceed the maximum transmit power limit and to determine transmissions to discard or transmit during a partition, as discussed in more detail below in relation to Figures 10 and 11.
[0126] [0126] Figure 9 illustrates an example of a 900 resource lease timeline that supports techniques for power control using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, the resource lease timeline 900 can be implemented in aspects of wireless communication system 100 or 200.
[0127] [0127] In the example of Figure 9, a first transmission 905, a second transmission 910, and a third transmission 915 can be allocated in resource leases received on a UE from a base station, for transmission on partition 920. In this example, the first transmission 905 and second transmission 910 can be PUSCH 930 transmissions, and the third transmission can be PUCCH 935 transmission. As discussed above, in cases where uplink transmissions can have different durations, start times, stop times, or combinations thereof, a UE can determine whether power scale or discard should be used to maintain a transmission power of the UE at or below a maximum transmit power limit (for example, Pcmax). In some cases, in order to perform such a power scale, the UE may need to receive leases for uplink transmissions to partition 920 on or before a predetermined time period 925 before partition 920 starts. In the example of Figure 9, the predetermined time period 925 can have a duration of symbols X before the beginning of partition 920.
[0128] [0128] In the example in Figure 9, the UE can receive grants for the allocation of resources for the second transmission 910 and the third transmission 915 before the predetermined time period 925. However, the concession for the first transmission 905 can be received later the beginning of the predetermined time period 925. In such a case, the UE may not be able to scale the first transmission 905 and, in cases where the addition of the first transmission 905 to the second transmission 910 already programmed and the third transmission 915 would exceed the maximum transmission power limit, the UE may discard the first transmission 905. In cases where the added transmission powers of the second transmission 910 and third transmission 915 exceed the maximum transmission power limit, the UE may scale power to scale the transmission power of one or both of the second transmission 910 and the third transmission 915 (for example, scaling can be ap lower priority transmissions).
[0129] [0129] In some cases, the UE can scale power to transmissions by adding transmissions to a 920 partition one by one based on order of priority, with the highest priority transmission being added first. In some cases, transmissions that have a higher timeline based on priority level are allocated first, so that ongoing transmissions that started on a previous partition or symbol can be continued with a higher priority than newly transmitted transmissions. added. In some cases, transmissions with the same priority level based on the timeline can be divided into multiple priority levels based on the types of transmission / UCI content. For example, priority can be provided, from highest to lowest, for PRACH transmissions, PUCCH / PUSCH transmissions with UCI, PUSCH transmissions and SRS transmissions. In other examples, priority can be provided, from highest to lowest, for PRACH transmissions,
[0130] [0130] When scaling transmissions according to such an order of priority, all remaining transmissions are scaled to fit the remaining available power. The remaining power available is a function of the symbol index, but all symbols in a transmission have the same power after rescheduling. If there are several transmissions with the same priority and with different transmission durations, the UE can select (for example, randomly) one of the transmissions before the other for staging or power outage. In some cases, the UE may signal the predetermined time period 925 for the base station. In other cases, the base station may signal the predetermined time period 925 to the UE, in order to have uniformity between several UEs for network programming purposes. In other cases, the predetermined time period 925 may be a pre-configured value.
[0131] [0131] Figure 10 illustrates an example of a method 1000 that supports techniques for energy control using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, method 1000 can be implemented in aspects of wireless communication system 100 or 200. As indicated above, in some cases the disposal rules can be implemented in a UE in which a transmission (or channel) is assigned to a priority level depending on the types of channel (for example, PUCCH, PUSCH) and / or the type of uplink control information (UCI) that they carry (for example, HARQ feedback information, SR information, etc., may have higher priority) and lower priority transmissions can be discarded if the total transmission power of overlapping transmissions exceeds a maximum transmission power limit.
[0132] [0132] In this example, in 1005, the UE can identify UE capacities for transmissions on different CCs. Such capabilities may include, for example, whether the UE is capable of transmitting overlapping transmissions on different CCs that have different start times, different stop times, different durations, or combinations thereof. Capabilities can also include whether the UE is capable of supporting interband CCs, non-contiguous intra-band CCs or contiguous intra-band CCs. In some cases, UE resources may be preconfigured in the UE. In other cases, UE resources may depend on conditions in the UE, such as thermal conditions that can limit a number of transmit / receive chains that can be active / processed at any given time, battery level or energy saving mode in the EU or other conditions in the UE.
[0133] [0133] In 1010, the UE can identify an overlap limit for TAGs. As discussed above, in some cases an UE can support several different TAGs on different CCs, and the overlap limit can be an amount of time during which the UE can transmit with powers that exceed the maximum transmit power limit. In some cases, the overlap limit value can be pre-configured in the UE or determined based on conditions in the UE.
[0134] [0134] In 1015, the UE can signal its capacities and limit of overlap to the base station. Such signaling can be transmitted through signaling by radio resource control (RRC), for example. In some cases, this signaling may be provided as part of a connection establishment procedure when the UE and the base station establish a connection that supports multiple CCs. In some cases, the UE may determine that the capacities or conditions have been changed that result in a different capacity or overlap limit than the UE, and in some cases, this change may be indicated to the base station after signaling the initial capacities and the overlap limit.
[0135] [0135] In 1020, the UE can receive concessions for multiple transmissions in two or more CCs. In some cases, the base station may schedule transmissions on the UE based on the UE's capacities and overlap limit, and provide leases to the UE through downlink control information (DCI) that is transmitted to the UE.
[0136] [0136] In 1025, the UE can identify priority levels for multiple transmissions. As discussed above, different transmissions or channels can be assigned a priority level depending on the types of channels (for example, PUCCH, PUSCH) and / or the type of uplink control information (UCI) they carry. In some cases, the priority levels for different transmissions or channels, or type of UCI, can be signaled to the UE by the base station, or they can be pre-configured. For example, a priority order can be, from highest priority to lowest priority, CC PRACH for a primary cell (PCell), PUCCH / PUSCH with ACK / NACK and / or SR, PUCCH / PUSCH with another UCI, PUSCH without UCI, SRS / PRACH from a secondary cell CC (SCell). In some cases, within the same priority level, PCell is prioritized over SCell. Several other examples of prioritization can be used in several cases, and the exemplary priority order above is provided for illustration and discussion purposes only.
[0137] [0137] In 1030, the UE can determine a transmission power for each DC transmission. Such a determination can be made in accordance with energy control information provided to the UE as part of the concessions, and power available in the UE, in accordance with established energy control techniques.
[0138] [0138] In 1035, the UE can determine an aggregate transmission power for a first symbol of a partition (symbol i). The UE can determine the aggregate transmission power as a sum of the transmission power for each DC that has a transmission programmed for the symbol.
[0139] [0139] In 1040, the UE can determine whether the aggregate transmission power for the symbol exceeds the maximum transmission power limit (Pcmax). Such a determination can be made on the basis of a comparison between the calculated aggregate transmission power and a value for Pcmax (for example, 23 dBm).
[0140] [0140] In the case of the aggregate transmission power for the symbol does not exceed Pcmax the UE, in 1045, can transmit each transmission to the symbol. In such cases, the symbol's overlapping transmissions have an aggregate power that is less than the maximum transmit power limit and thus none of the transmissions need to be discarded.
[0141] [0141] In 1050, the UE can increment the symbol inside the partition, and operations starting in 1035 can be performed. In case the symbol was the last symbol of the partition, the UE can stop and operations for a subsequent partition can be performed.
[0142] [0142] In case the aggregate transmission power for the symbol exceeds Pcmax the UE, in 1055, a power deficit can be calculated. This power deficit can be calculated as the difference between the aggregate power calculated for the symbol and Pcmax.
[0143] [0143] In 1060, the UE can identify a lower priority transmission or transmissions that are programmed for the symbol. As discussed below, different transmissions or channels can be assigned a priority level depending on the types of channel (for example, PUCCH, PUSCH) and / or the type of uplink control information (UCI) they carry. Based on the assigned priority levels, the UE can determine which of the one or more of the transmissions from one or more CCs has a lower priority.
[0144] [0144] In 1065, the UE can determine whether any of the lowest priority transmissions identified begin with the current symbol. In some cases, transmissions that are in progress may have a higher priority than transmissions that start at the specific symbol, and identifying which transmissions start at the current symbol may allow that prioritization.
[0145] [0145] If none of the transmissions starts at the current symbol, the UE can, in 1070, select all transmissions with the identified priority. If one or more of the transmissions begin with the current symbol, the UE may, in 1075, select those transmissions that begin with the current symbol.
[0146] [0146] In 1080, the UE can determine if any of the selected transmissions has a transmission power that is greater than or equal to the calculated power deficit. The UE can make this determination, for example, by comparing the transmission power of each of the selected transmissions with the power deficit.
[0147] [0147] If one or more of the selected transmissions have a transmission power greater than or equal to the calculated power deficit, the UE may, in 1085, discard that transmission. In the event that two or more of the selected transmissions meet these criteria, the UE may randomly select one of the transmissions to be discarded. Since the transmission power of the discarded transmission is greater than or equal to the calculated power deficit, the remaining transmissions of the symbol will have an aggregate transmission power that is equal to or less than Pcmax and, therefore, each can be transmitted.
[0148] [0148] In 1090, the UE can transmit each of the remaining transmissions to the current symbol. Broadcasts can be broadcast using one or more CCs according to the scheduled broadcast leases of the remaining broadcasts. The UE can then carry out operations starting in 1050.
[0149] [0149] If one or more of the selected transmissions do not have a transmission power greater than or equal to the calculated power deficit, the UE may, in 1095, discard a transmission with the highest transmission power. In the event that two or more of the selected transmissions have the same transmission power as the highest transmission power, the UE may randomly select one of the transmissions to be discarded. Such an action will reduce the aggregate transmission power of the symbol, but since the transmission power of the discarded transmission is less than the power deficit, the aggregate transmission power of the symbol will still exceed Pcmax and the UE may perform operations from 1060 to select one or more transmissions that must be discarded.
[0150] [0150] Using such techniques, a UE can iteratively discard transmissions until a power limit for a symbol is reached. In some cases, for certain priority levels, such as transmissions carrying HARQ-ACK / SR, the UE may perform escalation instead of discarding the first symbol of the transmission. The scaled power remains unchanged for the entire transmission, unless discarded.
[0151] [0151] In some cases, as discussed above, a UE may be unable to partially overlap transmissions within a TAG. In such cases, all overlapping streams that start and end at the same time in a TAG can be grouped as a grouped transmission, and a priority for the grouped transmission can be set as the highest priority for any transmission in the grouping. In such cases, energy allocation is carried out in two stages, in which, first, the UE can guarantee that the transmission power of each packaged transmission does not exceed Pcmax and a remaining power (as will be discussed below) when the packet starts, and second, the UE can perform energy allocation between grouped transmissions in a manner as described for individual transmissions. Since all transmissions in a packet start and end at the same time, the allocation of energy is performed for only one symbol.
[0152] [0152] Figure 11 illustrates an example of another method 1100 that supports techniques for energy control using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, another method 1100 may be implemented in aspects of wireless communication system 100 or 200. As indicated above, in some cases disposal rules may be implemented in a UE in which a transmission (or channel) is assigned to a priority level depending on the types of channel (for example, PUCCH, PUSCH) and / or the type of uplink control information (UCI) they carry, and lower priority transmissions can be discarded in the event that full transmission power overlapping transmissions exceeds a maximum transmit power limit.
[0153] [0153] In this example, in 1105, in the same way as discussed above in relation to Figure 10, the UE can identify the UE's capabilities for transmissions on different CCs. Such capabilities may include, for example, whether the UE is capable of transmitting overlapping transmissions on different CCs that have different start times, different downtimes, different durations or combinations thereof. Capabilities can also include whether the UE is capable of supporting CCs between bands, non-contiguous CCs within the band, or contiguous CCs within the band. In some cases, UE resources may be preconfigured in the UE. In other cases, UE resources may depend on conditions in the UE, such as thermal conditions that can limit a number of transmit / receive chains that can be active / processed at any given time, battery level or energy saving mode in the EU or other conditions in the UE.
[0154] [0154] In 1110, the UE can identify an overlap limit for TAGs. As discussed above, in some cases an UE can support multiple different TAGs on different CCs, and the overlap limit can be an amount of time during which the UE can transmit at powers that exceed the maximum transmit power limit. In some cases, the overlap limit value can be pre-configured in the UE or determined based on the conditions in the UE.
[0155] [0155] In 1115, the UE can signal its capabilities and override the limit on the base station. This signaling can be transmitted through signaling by radio resource control (RRC), for example. In some cases, this signaling may be provided as part of a connection establishment procedure when the UE and the base station establish a connection that supports multiple CCs. In some cases, the UE may determine that the capacities or conditions have been changed that result in a different capacity or overlap limit than the UE, and in some cases, this change may be indicated to the base station after signaling the initial capacities and the overlap limit.
[0156] [0156] In 1120, the UE can receive concessions for multiple transmissions in two or more CCs. In some cases, the base station may schedule transmissions on the UE based on the UE's capacities and overlap limit, and provide leases to the UE through downlink control information (DCI) that is transmitted to the UE.
[0157] [0157] In 1125, the UE can identify priority levels for multiple transmissions. As discussed above, different transmissions or channels can be assigned a priority level depending on the types of channel (for example, PUCCH, PUSCH) and / or the type of uplink control information (UCI) they carry. In some cases, priority levels for different broadcasts or channels, or type of UCI, can be signaled to the UE by the base station, or they can be pre-
[0158] [0158] In 1130, the UE can determine a transmission power for each DC transmission. Such a determination can be made in accordance with energy control information provided to the UE as part of the concessions, and power available in the UE, in accordance with established energy control techniques.
[0159] [0159] In 1135, the UE can define a remaining power for the symbol as Pcmax. By adjusting the remaining power, the UE can add transmissions programmed during a symbol until the remaining energy is no longer available, and any remaining transmissions that are not added can be the discarded transmissions.
[0160] [0160] In 1140, the UE can calculate the total transmission power for each transmission in progress. In some cases, as discussed above, ongoing transmissions starting at a previous symbol may take precedence over transmissions that are just beginning at the current symbol. To calculate the total transmission power for ongoing transmissions, the UE can add the transmission powers of each transmission from the previous symbol that continues the transmission to the current symbol. The UE can then calculate the remaining energy for the current symbol as Pcmax minus the total transmission power for each current transmission.
[0161] [0161] In 1145, the UE can determine whether any transmissions begin at the current symbol. In case the determination in 1145 is made after an iteration of the method, the UE can determine if any remaining transmissions start at the current symbol. This determination can be made based on any transmissions from any CC programmed to start at the specific current symbol, which can be provided in grants for uplink transmissions.
[0162] [0162] In the event that no additional transmissions start at the current symbol, the UE, in 1150, can transmit transmissions to the symbol. In such cases, the symbol's overlapping transmissions have an aggregate power less than the maximum transmit power limit and can be transmitted.
[0163] [0163] In 1155, the UE can increment the symbol within the partition and operations starting in 1135 can be performed. In case the symbol is the last symbol of the partition, the UE can stop and operations for a subsequent partition can be performed.
[0164] [0164] In the event that a transmission starts at the current symbol, the UE can in block 1160 identify a higher priority transmission. In the event that more than one transmission has the same highest priority, the UE may randomly select one of these transmissions.
[0165] [0165] In 1165, the UE can calculate the total added power of the identified transmission. The total added power can be calculated based on the transmission power of the identified transmission.
[0166] [0166] In 1170, the UE can determine whether the total added power of the identified transmission is less than or equal to the calculated remaining power. This determination can be made by comparing the transmission power of the identified uplink transmission with the calculated value of the remaining power.
[0167] [0167] If the total added power of the identified transmission is less than or equal to the calculated remaining power, the UE may, in 1175, update the remaining power value and repeat the operations from
[0168] [0168] If the total added power of the identified transmission is greater than the calculated remaining power, the UE can, in 1180, scale the identified transmission power to be equal to the remaining power. For example, the UE can apply a scaling factor as a ratio between the remaining power and the total added power and apply the scaled power to the newly added transmission. The UE can then execute operations from 1150 onwards. Alternatively, the UE can decide to abandon one or more of the lowest priority ongoing transmissions. In such cases, ongoing transmissions that share an RF chain in the UE can be discarded together. This drop can provide additional remaining power that can be used by a higher priority transmission starting at symbol i.
[0169] [0169] In the examples using the 1100 method, energy control can be carried out symbol by symbol and, in each symbol, the UE can decide to include transmissions based on a power budget. In this example, transmissions in progress are always included with the same power levels as the previous symbol and new transmissions that start with a current symbol are added according to an order of priority. To use all of the available power, the power scale can be applied to the newly added transmissions to fit the power budget.
[0170] [0170] Figure 12 illustrates an example of a 1200 method that supports energy control techniques using carrier aggregation in wireless communications in accordance with various aspects of the present disclosure. In some examples, method 1200 can implement aspects of wireless communication system 100 or 200. As indicated above, in some cases, rules based on the timeline for selecting transmissions and priorities for power scaling can be implemented in a UE in which a transmission (or channel) receives a priority level, depending on the types of channel (for example, PUCCH, PUSCH), type of uplink control information (UCI) they carry (for example, HARQ feedback information , SR information, etc., may have higher priority), whether a transmission is a continuous or new transmission, or combinations thereof. In some cases, lower priority transmissions may be scaled in power if the total transmission power of overlapping transmissions exceeds a maximum transmission power limit.
[0171] [0171] In this example, in 1205, the UE and the base station can establish connection and the UE can receive configuration information. In some cases, the configuration information may include information for two or more CCs that can be used for uplink transmissions from the UE. In some cases, the UE may identify the UE's capabilities for transmissions across different CCs. Such capabilities may include, for example, whether the UE is capable of transmitting overlapping transmissions on different CCs that have different start times, different stop times, different durations, or combinations thereof. Capabilities can also include whether the UE is capable of supporting interband CCs, non-contiguous CCs within the band or contiguous CCs within the band. In some cases, UE resources may be preconfigured in the UE. In other cases, UE resources may depend on conditions in the UE, such as thermal conditions that can limit a number of transmit / receive chains that can be active / processed at any given time, battery level or energy saving mode in the EU or other conditions in the UE. The base station can configure one or more of the CCs and can perform broadcast programming, based at least in part on the capabilities of the UE.
[0172] [0172] In 1210, the UE can receive concessions for uplink transmissions across multiple CCs. In some cases, the base station may schedule transmissions on the UE based on the capabilities of the UE, and provide leases to the UE through downlink control (DCI) information that is transmitted to the UE.
[0173] [0173] In 1215, the UE can determine whether the time before partition has been reached so that the UE can scale power for uplink transmissions. The UE can make such a determination based on a timeline configuration in the UE, as discussed above in relation to Figure 9. If the time before the partition has not yet been reached, operations in 1210 can be continued.
[0174] [0174] If the time before the partition was reached, in 1220, the UE can determine whether a total transmission power for the partition exceeds a maximum transmission power limit (Pcmax). In some cases, the UE can aggregate transmit powers for overlapping transmissions indicated in the received uplink leases to calculate the total transmit power for the partition, and can compare the total transmit power with the maximum transmit power limit.
[0175] [0175] If the total transmission power is greater than the maximum transmission power limit, the UE, in 1225, can scale the transmission power of one or more of the uplink transmissions. In some cases, the UE may scale transmission power based on an order of priority for uplink transmissions, with higher priority uplink transmissions with less or no power scale and lower priority uplink transmissions with more power scale , as discussed above in relation to Figure 9.
[0176] [0176] After the power scale, or if it is determined in 1220 that the total transmit power is no greater than the maximum transmit power limit, the UE in 1230 can determine whether any additional leases have been received. In some cases, a base station may provide an uplink lease after the time identified in 1215. In such cases, the UE may not be able to use such uplink transmissions in power scale calculations. If no additional grants are received, the UE can transmit uplink transmissions on the CCs, as indicated in 1235.
[0177] [0177] If an additional concession was received, in 1240 the UE can determine whether the total transmission power including an additional concession transmission power is greater than the maximum transmission power limit. In some cases, the UE may add a transmit power associated with the additional grant to the total transmit power or the staggered transmit power, and compare the updated total transmit power with the maximum transmit power limit.
[0178] [0178] If it is determined in 1240 that the total transmission power including an additional concession transmission power is greater than the maximum transmission power limit, the UE may, in 1245, discard the additional concession.
[0179] [0179] If it is determined in 1240 that the total transmission power including an additional concession transmission power is not greater than the maximum transmission power limit, or in the case that none of the additional concessions were received in 1230, the UE it can transmit uplink transmissions on CCs, as indicated in 1235. Uplink transmissions can be transmitted using uplink resources from CCs as indicated in uplink leases, and can use a transmission power that can be scaled according to techniques as discussed here.
[0180] [0180] Figure 13 shows a block diagram 1300 of a wireless device 1305 that supports techniques for power control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. The wireless device 1305 can be an example of aspects of a user equipment (UE) 115 as described here. Wireless device 1305 can include receiver 1310, communications manager of UE 1315, and transmitter 1320. Wireless device 1305 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0181] [0181] The 1310 receiver can receive information such as packages, user data, or control information associated with various information channels (for example, control channels, data channels, and information related to energy control techniques using aggregation of carrier in wireless communications, etc.). The information can be passed on to other components of the device. The 1310 receiver can be an example of aspects of the 1635 transceiver described with reference to Figure 16. The 1310 receiver can use a single antenna or a set of antennas.
[0182] [0182] The UE communications manager
[0183] [0183] The communications manager of UE 1315 and / or at least some of its various subcomponents can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software run by a processor, the functions of the communications manager of the UE 1315 and / or at least some of its various subcomponents can be performed by a general purpose processor, a digital signal processor (DESP.), A circuit application-specific integrated (SO), a field programmable gate array (FUGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure . The communications manager of the UE 1315 and / or at least some of its various subcomponents can be physically located in various positions, including being distributed so that portions of functions are implemented in different physical locations by one or more physical devices. In some instances, UE 1315's communications manager and / or at least some of its various subcomponents may be a separate and distinct component according to various aspects of this disclosure. In other examples, the communications manager of the UE 1315 and / or at least some of its various subcomponents can be combined with one or more other hardware components,
[0184] [0184] In some cases, the communications manager of the UE 1315 may establish a connection with a base station, the connection that supports two or more CCs within a TAG, identify, in the UE, an ability to support transmissions that have different times start times or durations at different CCs, and transmit an indication of capacity to the base station.
[0185] [0185] In addition or alternatively, the communications manager of the UE 1315 may, in addition or alternatively, establish a connection with a base station, the connection that supports two or more CCs within different TAGs, identify, in the UE, a limit overlap corresponding to an amount of time that is exempt from an energy control limit in which a new transmission on a first DC of a first TAG can overlap with a last portion of an existing transmission on a second DC of a second TAG , and transmit an indication of the overlap limit to the base station.
[0186] [0186] In addition or alternatively, the communications manager of the UE 1315 can establish a connection with a base station, the connection that supports two or more CCs, receive a set of uplink resource grants for a set of uplink transmissions on two or more CCs during a partition,
[0187] [0187] In addition or alternatively, the communications manager of the UE 1315 can establish a connection with a base station, the connection that supports two or more CCs, receive a set of uplink resource grants for a set of uplink transmissions on two or more CCs during a partition, where the set of leases are received at least a predetermined time before a partition starts, determine that a transmit power transmitting the set of uplink transmissions exceeds a maximum power limit for the UE during at least a portion of the partition, scales a transmission power of at least a subset of the uplink transmission set to provide that the transmission power is less than or equal to the maximum power limit, and to transmit the uplink transmission set during the partition using one or more of the CCs.
[0188] [0188] In addition or alternatively, the UE 1315 communications manager can establish a connection to a base station, the connection that supports two or more component carriers (CCs), receive a set of uplink resource grants for a set of uplink streams on two or more CCs during a partition, where the set of leases are received at least a predetermined time before a partition starts, identifying a first uplink stream from the set of uplink streams has a first priority which is higher than at least a second priority of a second uplink transmission from the uplink transmission set that overlaps the first uplink transmission, determine a first transmission power from the first uplink transmission, scale a second transmission power from the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a po limit maximum power, and transmit the set of uplink transmissions during the partition using two or more CCs.
[0189] [0189] The 1320 transmitter can transmit signals generated by other components of the device. In some examples, the 1320 transmitter can be placed with a 1310 receiver on a transceiver module. For example, transmitter 1320 can be an example of aspects of transceiver 1635 described with reference to Figure 16. Transmitter 1320 can use a single antenna or a set of antennas.
[0190] [0190] Figure 14 shows a block diagram 1400 of a wireless device 1405 that supports techniques for power control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Wireless device 1405 can be an example of aspects of a wireless device 1305 or a UE 115 as described with reference to Figure 13. Wireless device 1405 can include receiver 1410, communications manager of UE 1415, and transmitter 1420. The wireless device 1405 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0191] [0191] The 1410 receiver can receive information such as packets, user data, or control information associated with various information channels (for example, control channels, data channels, and information related to energy control techniques using aggregation of carrier in wireless communications, etc.). The information can be passed on to other components of the device. The receiver 1410 can be an example of aspects of the transceiver 1635 described with reference to Figure 16. The receiver 1410 can use a single antenna or a set of antennas.
[0192] [0192] The UE 1415 communications manager can be an example of aspects of the UE 1615 communications manager described with reference to Figure 16. The UE 1415 communications manager can also include connection establishment component 1425, capacity component from DC 1430, timing advance manager 1435, uplink transmission manager 1440, and transmission power control manager 1445.
[0193] [0193] The connection establishment component 1425 can establish a connection with a base station, the connection that supports two or more CCs within a TAG. In some cases, the connection establishment component 1425 may establish a connection to a base station, the connection that supports two or more CCs within different TAGs.
[0194] [0194] The capacity component of CC 1430 can identify a capacity to support transmissions that have different start times or durations at different CCs and transmit an indication of capacity to the base station. In some cases, identification includes identifying the ability to support transmissions that have different start times or durations for each of a set of different frequency bands or combinations of different frequency bands. In some cases, the ability to withstand different start times or durations for each of the set of different frequency bands or combinations of different frequency bands is determined based on the various RF chains available for transmissions in the UE. In some cases, the set of different frequency bands or combinations of different frequency bands include contiguous intra-band carrier frequencies per RF Chain in the UE. In some cases, the set of different frequency bands or combinations of different frequency bands includes intra-band or non-contiguous intra-band carrier frequencies for multiple RF chains in the UE.
[0195] [0195] The timing advance manager
[0196] [0196] The uplink broadcast manager 1440 can receive uplink resource grants for uplink transmissions on the first CC and the second CC. In some cases, the uplink broadcast manager 1440 may receive a set of uplink resource grants for a set of uplink transmissions on the two or more CCs during a partition. In some cases, the uplink transmission manager 1440 may transmit uplink transmissions from the uplink transmission set during the partition using one or more of the CCs based on transmission disposal techniques as discussed here. In some cases, the uplink transmission manager 1440 may identify a first subset of a set of overlapping uplink transmissions having a transmission start time preceding the first symbol and a second subset of the set of overlapping uplink transmissions starting at first symbol, such uplink streams having given higher priority in some cases.
[0197] [0197] In some cases, the uplink broadcast manager 1440 may receive a set of uplink resource grants for a set of uplink transmissions on two or more CCs during a partition, where the set of grants is received by at least one predetermined time before a partition starts. In some cases, the uplink transmission manager 1440 may receive an additional grant for an additional uplink transmission after the predetermined time and before the partition starts, and transmit the additional responsive uplink transmission to determine that the additional uplink transmission does not would increase an aggregate transmission power of the UE above the maximum power limit. In some cases, a time interval between the last transmission of control information and the beginning of the partition is based on uplink information to be transmitted using one or more of the set of uplink transmissions. In some cases, a first CC of the two or more CCs has a different symbol duration than at least a second CC of the two or more CCs, and the last transmission of control information that includes at least one of the grant set is signaled separately for the first CC and the second CC.
[0198] [0198] The transmission power control manager 1445 can determine the transmission power and transmissions to be discarded according to the techniques provided here. In some cases, the transmit power control manager 1445 may determine that a transmit power transmits a set of uplink transmissions that exceed a maximum power limit for the UE for at least a portion of the partition, and discard at least one first uplink transmission of the uplink transmission set, where a resulting transmit power is less than or equal to the maximum power limit. In some cases, the transmit power control manager 1445 may discard the first uplink transmission based on the first uplink transmission having a priority that is less than a priority of another of the two or more overlapping uplink transmissions.
[0199] [0199] In some cases, the transmission power control manager 1445 may determine that the first uplink transmission has a first associated uplink transmission power that is equal to or greater than a difference between the maximum power limit and an aggregate power from another set of uplink transmissions that are overlapping with the first uplink transmission, and discard the first uplink transmission based on such a determination. In some cases, the transmission power control manager 1445 may identify a first partition symbol in which overlapping uplink transmissions have an aggregate transmission power that exceeds the maximum power limit for the UE, identifying one or more uplink transmissions of the overlapping uplink streams that are ongoing streams and set the ongoing streams to have a higher priority.
[0200] [0200] In some cases, the transmission power control manager 1445 may determine that a first DC and second DC have timing advances (TAs) that result in an overlapping portion of transmissions, and may modify an uplink transmission from one or both from the first CC or second CC based on a difference in timing of the TAs. In some cases, the modification includes discarding a first DC transmission that ends at a partition boundary between consecutive partitions, discarding a second DC transmission that starts at the partition boundary, reducing a transmission power from the first DC transmission , the second DC transmission, or both, discard a last symbol from a first DC transmission, or discard a first symbol from the second DC transmission.
[0201] [0201] In some cases, the transmission power control manager 1445 can iteratively identify transmissions to be discarded from a symbol having multiple overlapping transmissions that exceed a maximum power limit, and determine that the first uplink transmission has a minimum power between a subset of uplink streams that can be dropped, and can drop the first uplink stream. In some cases, if two or more uplink transmissions are identified that can be discarded, the transmission power control manager 1445 can randomly select one of the uplink transmissions to be discarded. In some cases, determination and disposal are performed on a symbol-by-symbol basis when formatting the set of uplink transmissions for transmission during the partition.
[0202] [0202] In some cases, the transmission power control manager 1445 may, scale transmission powers of one or more overlapping responsive uplink transmissions to determine that the set of uplink transmissions exceeds the maximum power limit. In some cases, the transmit power control manager 1445 can identify an additional uplink lease that is received after power control functions, and discard the responsive additional uplink transmission to determine that the additional uplink transmission would increase a transmit power aggregate of the UE above the maximum power limit.
[0203] [0203] In some cases, the transmit power control manager 1445 can determine a first transmit power from a first uplink transmission and a second transmit power from a second uplink transmission, determine a remaining power between the power of aggregated transmission of the UE and the maximum power limit, identify a third uplink transmission that overlaps with the first uplink transmission and the second uplink transmission, and which has a lower priority than the first priority and second priority, and allocate the remaining power for the third uplink transmission. In some cases, the predetermined time to receive the set of leases is pre-configured or signaled between the base station and the UE. In some cases, the predetermined time to receive the set of grants is based on a capacity of the UE. In some cases, each symbol of an uplink transmission during the partition has the same transmission power.
[0204] [0204] The transmitter 1420 can transmit signals generated by another component of the device. In some examples, transmitter 1420 can be placed with a receiver 1410 in a transceiver module. For example, transmitter 1420 can be an example of aspects of transceiver 1635 described with reference to Figure 16. Transmitter 1420 can use a single antenna or a set of antennas.
[0205] [0205] Figure 15 shows a 1500 block diagram of a UE 1515 communications manager that supports techniques for power control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. The UE 1515 communications manager can be an example of aspects of an UE 1315 communications manager, an UE 1415 communications manager, or an UE 1615 communications manager described with reference to Figures 13, 14, and 16. The communications manager of the UE 1515 can include connection establishment component 1520, capacity component of the CC 1525, timing advance manager 1530, uplink transmission manager 1535, transmission power control manager 1540, identification component priority 1545,
[0206] [0206] The connection establishment component 1520 can establish a connection with a base station, the connection that supports two or more CCs within a TAG. In some cases, the connection establishment component 1520 may establish a connection to a base station, the connection that supports two or more CCs within different TAGs.
[0207] [0207] The capacity component of CC 1525 can identify a capacity to support transmissions that have different start times or durations at different CCs and transmit an indication of capacity to the base station. In some cases, identification includes identifying the ability to support transmissions that have different start times or durations for each of a set of different frequency bands or combinations of different frequency bands. In some cases, the ability to withstand different start times or durations for each of the sets of different frequency bands or combinations of different frequency bands is determined based on the various RF chains available for transmissions in the UE. In some cases, the set of different frequency bands or combinations of different frequency bands include contiguous intra-band carrier frequencies per
[0208] [0208] Timing advance manager 1530 can identify an overlap limit corresponding to an amount of time that is exempt from a power control limit in which a new transmission on a first DC of a first TAG can overlap with a last portion of an existing transmission on a second CC of a second TAG, transmit an indication of the overlap limit to the base station, and determine whether a timing difference between the first CC and the second CC exceeds the overlap limit. In some cases, the overlap limit applies to a start or end of a broadcast on one or more of the CCs. In some cases, if the timing difference exceeds the overlap limit, one or more transmissions from one or more CCs can be discarded according to the techniques provided here.
[0209] [0209] The uplink broadcast manager 1535 can receive uplink resource grants for uplink transmissions on the first CC and the second CC. In some cases, the uplink broadcast manager 1535 may receive a set of uplink resource grants for a set of uplink transmissions on the two or more CCs during a partition. In some cases, the uplink transmission manager 1535 may transmit uplink transmissions from the uplink transmission set during the partition using one or more of the CCs based on transmission disposal techniques as discussed here. In some cases, the uplink transmission manager 1535 may identify a first subset of a set of overlapping uplink transmissions having a transmission start time that precedes the first symbol and a second subset of the set of overlapping uplink transmissions starting at first symbol, such uplink streams having given higher priority in some cases.
[0210] [0210] The transmission power control manager 1540 can determine the transmission power and transmissions to be discarded according to the techniques provided here. In some cases, the transmit power control manager 1540 may determine that a transmit power transmits a set of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition, and discard at least one first uplink transmission of the uplink transmission set, where a resulting transmit power is less than or equal to the maximum power limit. In some cases, the transmission power control manager 1540 may discard the first uplink transmission based on the first uplink transmission having a priority that is less than a priority of another of the two or more overlapping uplink transmissions.
[0211] [0211] In some cases, the transmission power control manager 1540 may determine that the first uplink transmission has an associated first uplink transmission power that is equal to or greater than a difference between the maximum power limit and an aggregate power from another set of uplink transmissions that are overlapping with the first uplink transmission, and discard the first uplink transmission based on such a determination. In some cases, the transmission power control manager 1540 may identify a first partition symbol in which overlapping uplink transmissions have an aggregate transmission power that exceeds the maximum power limit for the UE, identifying one or more uplink transmissions of the overlapping uplink streams that are ongoing streams and set the ongoing streams to have a higher priority.
[0212] [0212] In some cases, the 1540 transmission power control manager may determine that a first DC and second DC have timing advances (TAs) that result in an overlapping portion of transmissions, and may modify an uplink transmission from one or both from the first CC or second CC based on a difference in timing of the TAs. In some cases, the modification includes discarding a first DC transmission that ends at a partition boundary between consecutive partitions, discarding a second DC transmission that starts at the partition boundary, reducing a transmission power from the first DC transmission , the second DC transmission, or both, discard a last symbol from a first DC transmission, or discard a first symbol from the second DC transmission.
[0213] [0213] In some cases, the 1540 transmission power control manager can iteratively identify transmissions to be discarded from a symbol having multiple overlapping transmissions that exceed a maximum power limit, and determine that the first uplink transmission has a minimum power between a subset of uplink streams that can be dropped, and can drop the first uplink stream. In some cases, if two or more uplink transmissions are identified that can be discarded, the transmission power control manager 1540 can randomly select one of the uplink transmissions to be discarded. In some cases, determination and disposal are performed on a symbol-by-symbol basis when formatting the set of uplink transmissions for transmission during the partition.
[0214] [0214] In some cases, the transmission power control manager 1540 may scale transmission powers from one or more overlapping responsive uplink transmissions to determine that the set of uplink transmissions exceeds the maximum power limit. In some cases, the transmit power control manager 1540 may identify that an additional uplink lease is received after power control functions, and discard the responsive additional uplink transmission to determine that the additional uplink transmission would increase a power aggregated transmission of the UE above the maximum power limit.
[0215] [0215] In some cases, the transmission power control manager 1540 can determine a first transmit power from a first uplink transmission and a second transmit power from a second uplink transmission, determine a remaining power between the power of aggregated transmission of the UE and the maximum power limit, identify a third uplink transmission that overlaps with the first uplink transmission and the second uplink transmission, and which has a lower priority than the first priority and second priority, and allocate the remaining power for the third uplink transmission. In some cases, the predetermined time to receive the set of leases is pre-configured or signaled between the base station and the UE. In some cases, the predetermined time to receive the set of grants is based on a capacity of the UE. In some cases, each symbol of an uplink transmission during the partition has the same transmission power.
[0216] [0216] The priority identification component 1545 can select a first DC transmission or second DC transmission to be discarded or transmitted at reduced power based on a priority associated with each of the first DC transmission and the second DC transmission . In some cases, the selection may be based on one or more of an identified priority associated with two or more overlapping uplink transmissions that have an aggregate power that exceeds the maximum power limit, or a first identified subset of aggregated uplink transmissions of the set of uplink streams that have a first priority that is less than at least a second priority of one or more other subsets of the set of uplink streams.
[0217] [0217] The 1550 power scaling component can scale a transmission power of at least one uplink transmission so that the transmission power of the UE is less than or equal to the maximum power limit. In some cases, a transmission power of one or more uplink transmissions can be scaled to correspond to a difference between the maximum power limit and an aggregate transmission power.
[0218] [0218] In some cases, the 1550 power scaling component may scale a transmission power of at least a subset of the uplink transmission set to provide that the transmission power is less than or equal to the maximum power limit. In some cases, the transmission power scaling is performed over a period of time that has a start time after a last transmission of control information associated with the partition and an end time at a partition start limit. In some cases, the UE still scales more than one uplink transmission having the same priority so that an aggregated transmission power of the UE is less than or equal to a maximum power limit.
[0219] [0219] Transmission grouping component 1555 can group one or more transmissions from different TAGs. In some cases, the set of uplink transmissions includes a first subset of uplink transmissions from a first TAG and a second subset of uplink transmissions from a second TAG, the UE groups the first subset of uplink transmissions into a first subset of clustered uplink streams and the second subset of uplink streams in a second subset of clustered uplink streams. Power control techniques, such as discarding transmissions, can be performed based on the grouped subsets of uplink transmissions and a priority of the grouped subset can be configured to be a higher priority of transmissions in the subset.
[0220] [0220] Figure 16 shows a diagram of a 1600 system including a 1605 device that supports techniques for power control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Device 1605 can be an example of or include wireless device components 1305, wireless device 1405, or an UE 115 as described above, for example, with reference to Figures 13 and 14. Device 1605 can include components for communications bidirectional voice and data systems including components to transmit and receive communications, including UE 1615 communications manager, 1620 processor, 1625 memory, 1630 software, 1635 transceiver, 1640 antenna, and 1645 I / O controller. These components can be in communication through one or more buses (for example, 1610 bus). Device 1605 can communicate wirelessly with one or more base stations 105.
[0221] [0221] The 1620 processor may include an intelligent hardware device, (for example, a general-purpose processor, an DESP., A central processing unit (CPU), a microcontroller, an SO, a leak, a programmable logic device , a discrete gate logic or component transistor, a discrete hardware component, or any combination thereof). In some cases, the 1620 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated into the 1620 processor. The 1620 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example, functions or tasks that support power control techniques using carrier aggregation in wireless communications).
[0222] [0222] 1625 memory can include random access memory (RAM) and read-only memory (ROM). The 1625 memory can store computer-readable, computer-executable 1630 software including instructions that, when executed, cause the processor to perform various functions described here. In some cases, the 1625 memory may contain, among other things, a basic input / output system (BIOS) that can control basic hardware or software operation such as interaction with peripheral components or devices.
[0223] [0223] The 1630 software may include code to implement aspects of this disclosure, including code to support techniques for power control using carrier aggregation in wireless communications. The 1630 software can be stored in a non-transitory, computer readable medium such as system memory or other memory. In some cases, the 1630 software may not be directly executable by the processor but may cause a computer (for example, when compiled and run) to perform functions described here.
[0224] [0224] The 1635 transceiver can communicate bidirectionally, through one or more antennas, wired or wireless links as described above. For example, the 1635 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 1635 transceiver may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
[0225] [0225] In some cases, the wireless device may include a single 1640 antenna. However, in some cases the device may have more than one 1640 antenna, which may be able to simultaneously transmit or receive multiple wireless transmissions.
[0226] [0226] The 1645 I / O controller can manage input and output signals for the device
[0227] [0227] Figure 17 shows a 1700 block diagram of a 1705 wireless device that supports power control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Wireless device 1705 can be an example of aspects of a base station 105 as described here. Wireless device 1705 may include receiver 1710, base station communications manager 1715, and transmitter 1720. Wireless device 1705 may also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0228] [0228] The 1710 receiver can receive information such as packets, user data, or control information associated with various information channels (for example, control channels, data channels, and information related to energy control techniques using aggregation of carrier in wireless communications, etc.). The information can be passed on to other components of the device. The 1710 receiver can be an example of aspects of the 2035 transceiver described with reference to Figure 20. The 1710 receiver can use a single antenna or a set of antennas.
[0229] [0229] The base station communications manager 1715 can be an example of aspects of the base station communications manager 2015 described with reference to Figure 20.
[0230] [0230] The 1715 base station communications manager and / or at least some of its various subcomponents can be implemented in hardware, software run by a processor, firmware, or any combination thereof. If implemented in software run by a processor, the functions of the 1715 base station communications manager and / or at least some of its various subcomponents can be performed by a general-purpose processor, DESP., SO, FUGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure. The base station communications manager 1715 and / or at least some of its various subcomponents can be physically located in various positions, including being distributed so that portions of functions are implemented in different physical locations by one or more physical devices. In some instances, the base station communications manager 1715 and / or at least some of its various subcomponents may be a separate and distinct component according to various aspects of the present disclosure. In other examples, the 1715 base station communications manager and / or at least some of its various subcomponents may be combined with one or more other hardware components, including but not limited to an I / O component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
[0231] [0231] The 1715 base station communications manager can establish a connection with a UE having two or more CCs within a TAG or in different TAGs, receive an indication from the UE that indicates whether the UE is capable of supporting transmissions that have different start times or durations at different CCs and an overlap limit corresponding to an amount of time that is exempt from an energy control limit in which a new transmission on a first CC of a first TAG can overlap with a last portion of an existing transmission on a second CC from a second TAG, schedule a set of uplink transmissions to the UE using the two or more CCs based on the indication and overlap limit, and transmit a set of uplink concessions to the UE which includes resource grants for the uplink broadcast set.
[0232] [0232] The 1720 transmitter can transmit signals generated by other components of the device. In some examples, the 1720 transmitter can be placed with a 1710 receiver on a transceiver module. For example, transmitter 1720 can be an example of aspects of transceiver 2035 described with reference to Figure 20. The transmitter 1720 can use a single antenna or a set of antennas.
[0233] [0233] Figure 18 shows a 1800 block diagram of a 1805 wireless device that supports techniques for power control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. The wireless device 1805 can be an example of aspects of a wireless device 1705 or a base station 105 as described with reference to Figure 17. The wireless device 1805 can include receiver 1810, base station communications manager 1815, and transmitter 1820. The 1805 wireless device can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0234] [0234] The 1810 receiver can receive information such as packages, user data, or control information associated with various information channels (for example, control channels, data channels, and information related to energy control techniques using aggregation of carrier in wireless communications, etc.). The information can be passed on to other components of the device. The receiver 1810 can be an example of aspects of the transceiver 2035 described with reference to Figure 20. The receiver 1810 can use a single antenna or a set of antennas.
[0235] [0235] The base station communications manager 1815 can be an example of aspects of the base station communications manager 2015 described with reference to Figure 20. The base station communications manager 1815 can also include connection establishment component 1825, 1830 capacity identification component, 1835 programmer, and 1840 downlink control information (DCI) component.
[0236] [0236] The 1825 connection establishment component can establish a connection with a UE having two or more CCs within a TAG or in different TAGs.
[0237] [0237] The capacity identification component 1830 can receive an indication from the UE that indicates whether the UE is capable of supporting transmissions that have different start times or durations at different CCs and an overlap limit corresponding to an amount of time which is exempt from an energy control limit in which a new transmission in a first DC of a first TAG can overlap with a last portion of an existing transmission in a second DC of a second TAG.
[0238] [0238] The 1835 programmer can program a set of uplink transmissions to the UE using two or more CCs based on the indication and overlap limit. The DCI 1840 component can transmit a set of uplink leases to the UE that includes resource leases for the set of uplink streams.
[0239] [0239] The 1820 transmitter can transmit signals generated by other components of the device. In some examples, the 1820 transmitter can be placed with an 1810 receiver on a transceiver module. For example, transmitter 1820 can be an example of aspects of transceiver 2035 described with reference to Figure 20. Transmitter 1820 can use a single antenna or a set of antennas.
[0240] [0240] Figure 19 shows a 1900 block diagram of a 1915 base station communications manager that supports techniques for power control using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. The base station communications manager 1915 can be an example of aspects of a base station communications manager 2015 described with reference to Figures 17, 18, and 20. The base station communications manager 1915 may include a connection establishment component. 1920, capacity identification component 1925, programmer 1930, component of DCI 1935, and configuration manager 1940. Each of these modules can communicate, directly or indirectly, with one another (for example, through one or more buses).
[0241] [0241] The 1920 connection establishment component can establish a connection with a UE having two or more CCs within a TAG or in different TAGs.
[0242] [0242] The capacity identification component 1925 can receive an indication from the UE that indicates whether the UE is capable of supporting transmissions that have different start times or durations at different CCs and an overlap limit corresponding to an amount of time which is exempt from an energy control limit in which a new transmission in a first DC of a first TAG can overlap with a last portion of an existing transmission in a second DC of a second TAG.
[0243] [0243] The 1930 programmer can program a set uplink transmissions to the UE using the two or more CCs based on the indication and overlap limit. The 1935 DCI component can transmit a set of uplink leases to the UE that include resource leases for the set of uplink streams.
[0244] [0244] The 1940 configuration manager can configure the UE with one or more energy control parameters based on the indication, the one or more energy control parameters providing energy control priorities and order to perform power control for transmissions uplink in two or more CCs.
[0245] [0245] Figure 20 shows a diagram of a 2000 system including a 2005 device that supports energy control techniques using carrier aggregation in wireless communications in accordance with aspects of this disclosure. The 2005 device can be an example of or include the base station components 105 as described above, for example, with reference to Figure 1. The 2005 device can include components for bidirectional data and voice communications including components for transmitting and receiving communications, including base station communications manager 2015, processor 2020, memory 2025, software 2030, transceiver 2035, antenna 2040, network communications manager 2045, and inter-station communications manager 2050.
[0246] [0246] The processor 2020 may include an intelligent hardware device (for example, a general purpose processor, an DESP., A CPU, a microcontroller, an SO, a leak, a programmable logic device, a discrete gate logic component or transistor, a discrete hardware component or any combination thereof). In some cases, the 2020 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated with the 2020 processor. The 2020 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example, functions or tasks that support power control techniques using aggregation operator in wireless communications).
[0247] [0247] The 2025 memory can include RAM and ROM. The 2025 memory can store computer-readable, computer-executable 2030 software including instructions that, when executed, cause the processor to perform various functions described here. In some cases, the 2025 memory may contain, among other things, a BIOS that can control basic hardware or software operation such as interaction with component or peripheral devices.
[0248] [0248] The 2030 software may include code to implement aspects of this disclosure, including code to support techniques for power control using carrier aggregation in wireless communications. The 2030 software can be stored in a non-transitory, computer readable medium such as system memory or other memory. In some cases, the 2030 software may not be directly executable by the processor but may cause a computer (for example, when compiled and run) to perform functions described here.
[0249] [0249] The 2035 transceiver can communicate bidirectionally, through one or more antennas, wired or wireless links as described above. For example, the 2035 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 2035 transceiver may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
[0250] [0250] In some cases, the wireless device may include a single 2040 antenna. However, in some cases the device may have more than one 2040 antenna, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions.
[0251] [0251] The network communications manager 2045 can manage communications with the main network (for example, through one or more wired backhaul links). For example, the network communications manager 2045 can manage the transfer of data communications to client devices, such as one or more UEs 115.
[0252] [0252] The international communications manager
[0253] [0253] Figure 21 shows a flow chart illustrating a 2100 method for energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Method 2100 operations can be implemented by a UE 115 or its component as described here. For example, method 2100 operations can be performed by a UE communications manager as described with reference to Figures 13 to 16. In some examples, a UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0254] [0254] In 2105, the UE 115 can establish a connection to a base station, the connection that supports two or more CCs within a TAG. 2105 operations can be performed according to the methods described here. In certain examples, aspects of the 2105 operations can be performed by a connection-making component as described with reference to Figures 13 to 16. In some cases, the connection can be established according to connection-making techniques in which a UE can request a connection (for example, through a random access request) to the base station. In some cases, the UE during the connection establishment procedure may indicate that the UE is capable of supporting two or more CCs, and the connection can be established that supports the two or more CCs.
[0255] [0255] In 2110, the UE 115 can identify a capacity to support transmissions that have different start times or durations at different CCs. 2110 operations can be performed according to the methods described here. In certain examples, aspects of 2110 operations can be performed by a DC capacity component as described with reference to Figures 13 to 16. In some cases, the ability to support transmissions that have different start times or durations may be pre -configured in the UE and supplied to the base station as part of the connection establishment procedure. In some cases, the UE may determine the ability to support broadcasts that have different start times or durations based on conditions in the UE.
[0256] [0256] In 2115, UE 115 can transmit an indication of capacity to the base station. 2115 operations can be performed according to the methods described here. In certain examples, aspects of 2115 operations can be performed by a CC capability component as described with reference to Figures 13 to 16. In some cases, the indication can be provided through RRC signaling as part of the establishment procedure of connection.
[0257] [0257] Figure 22 shows a flow chart illustrating a 2200 method for energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Method 2200 operations can be implemented by a UE 115 or its component as described here. For example, method 2200 operations can be performed by a UE communications manager as described with reference to Figures 13 to 16. In some examples, a UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0258] [0258] In 2205, the UE 115 can establish a connection to a base station, the connection that supports two or more CCs within different TAGs. 2205 operations can be performed according to the methods described here. In certain examples, aspects of 2205 operations can be performed by a connection-making component as described with reference to Figures 13 to 16. In some cases, the connection can be established according to connection-making techniques in which a UE can request a connection (for example, through a random access request) to the base station. In some cases, the UE during the connection establishment procedure may indicate that the UE is capable of supporting two or more CCs, and the connection can be established that supports the two or more CCs.
[0259] [0259] In 2210, UE 115 can identify an overlap limit corresponding to an amount of time that is exempt from an energy control limit in which a new transmission in a first DC of a first TAG can overlap with a last portion of a transmission existing in a second DC of a second TAG. The 2210 operations can be performed according to the methods described here. In certain examples, aspects of the 2210 operations can be performed by a time advance manager as described with reference to Figures 13 to 16. In some cases, the overlap limit can be pre-configured in the UE and supplied to the base station as part of the connection establishment procedure. In some cases, the UE may determine the overlap limit based on conditions in the UE and signal the overlap limit to the base station.
[0260] [0260] In 2215, the UE 115 can transmit an indication of the overlap limit to the base station. 2215 operations can be performed according to the methods described here. In certain examples, aspects of the 2215 operations can be performed by a time advance manager as described with reference to Figures 13 to 16. In some cases, the indication can be provided through RRC signaling as part of the establishment procedure of connection.
[0261] [0261] In 2220, UE 115 can receive uplink resource grants for uplink transmissions on consecutive partitions in the first CC and the second CC. The 2220 operations can be performed according to the methods described here. In certain examples, aspects of the 2220 operations can be performed by an uplink transmission manager as described with reference to Figures 13 to 16. In some cases, such leases can be received in DCI from the base station.
[0262] [0262] In 2225, UE 115 can determine that a timing difference between the first CC and the second CC exceeds the overlap limit. The 2225 operations can be performed according to the methods described here. In certain examples, aspects of the 2225 operations can be performed by a time advance manager as described with reference to Figures 13 to 16. In some cases, the UE may make such a determination based on a current value of TAs for each CC, and a timing difference between the TAs compared to the overlap limit.
[0263] [0263] In 2230, the UE 115 may select the first DC transmission or the second DC transmission to be discarded, or transmitted at reduced power, based at least in part on a priority associated with each of the first DC transmission. and the second DC transmission. 2230 operations can be performed according to the methods described here. In certain examples, aspects of the 2230 operations can be performed by a priority identification component as described with reference to Figures 13 to
[0264] [0264] In 2235, the UE 115 can modify an uplink transmission from one or both of the first or second CC based at least in part on the timing difference. The 2235 operations can be performed according to the methods described here. In certain examples, aspects of the 2235 operations can be performed by a transmission power control manager as described with reference to Figures 13 to 16. In some cases, the modification may include discarding a first DC transmission that ends in a partition limit between consecutive partitions, discard a second DC transmission that starts at the partition limit, reduce a transmission power from the first DC transmission, the second DC transmission, or both, discard a last symbol from a first transmission DC, or discard a first symbol from the second DC transmission.
[0265] [0265] Figure 23 shows a flowchart illustrating a 2300 method for energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Method 2300 operations can be implemented by a UE
[0266] [0266] In 2305, the UE 115 can establish a connection to a base station, the connection that supports two or more CCs. 2305 operations can be performed according to the methods described here. In certain examples, aspects of 2305 operations can be performed by a connection-making component as described with reference to Figures 13 to 16. In some cases, the connection can be established according to connection-making techniques in which a UE can request a connection (for example, through a random access request) to the base station. In some cases, the UE during the connection establishment procedure may indicate that the UE is capable of supporting two or more CCs, and the connection can be established that supports the two or more CCs.
[0267] [0267] In 2310, the UE 115 can receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition. The 2310 operations can be performed according to the methods described here. In certain examples, aspects of 2310 operations can be performed by an uplink transmission manager as described with reference to Figures 13 to 16. In some cases, the plurality of leases can be received in DCI from the base station.
[0268] [0268] In 2315, the UE 115 can determine that a transmission power transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition. The 2315 operations can be performed according to the methods described here. In certain examples, aspects of 2315 operations can be performed by a transmission energy control manager as described with reference to Figures 13 to 16. In some cases, the determination can be made by adding the transmission power of each superimposed transmission of a symbol to determine a total transmission power for the symbol and comparing the total transmission power with the maximum power limit.
[0269] [0269] In 2320, UE 115 can discard at least one first uplink transmission from the plurality of uplink transmissions, where a resulting transmission power is less than or equal to the maximum power limit. The 2320 operations can be performed according to the methods described here. In certain examples, aspects of 2320 operations can be performed by a transmission energy control manager as described with reference to Figures 13 to
[0270] [0270] In 2325, UE 115 can transmit remaining uplink transmissions from the plurality of uplink transmissions during the partition using one or more of the CCs. The 2325 operations can be performed according to the methods described here. In certain examples, aspects of the 2325 operations may be performed by an uplink transmission manager as described with reference to Figures 13 to 16. The remaining uplink transmissions may have an aggregate transmission power that is less than the maximum transmission.
[0271] [0271] Figure 24 shows a flowchart illustrating a 2400 method for energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Method 2400 operations can be implemented by a UE 115 or its component as described here. For example, method 2400 operations can be performed by a UE communications manager as described with reference to Figures 13 to 16. In some examples, a UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0272] [0272] In 2405, the UE 115 can establish a connection to a base station, the connection that supports two or more CCs. 2405 operations can be performed according to the methods described here. In certain examples, aspects of the 2405 operations can be performed by a connection-making component as described with reference to Figures 13 to
[0273] [0273] In 2410, UE 115 can receive a plurality of uplink resource grants for a plurality of uplink transmissions on two or more CCs during a partition, where a transmission power transmits the set of uplink transmissions that exceeds one maximum power limit for the UE for at least a portion of the partition. 2410 operations can be performed according to the methods described here. In certain examples, aspects of 2410 operations can be performed by an uplink transmission manager as described with reference to Figures 13 to 16. In some cases, the plurality of grants is received at least for a predetermined time before a start of the partition, so that the UE can perform power control calculations based on uplink transmission powers for uplink transmissions provided by the concessions. In some cases, the plurality of concessions can be received in DCI from the base station.
[0274] [0274] At 2415, the UE 115 can scale a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit. 2415 operations can be performed according to the methods described here. In certain examples, aspects of 2415 operations can be performed by a power scaling component as described with reference to Figures 13 to 16. The UE can scale transmission power, in some cases, based on an order of priority of uplink transmissions. In some cases, higher priority transmissions may have little or no power scale, and lower priority transmissions may have a higher power scale than higher priority transmissions.
[0275] [0275] In 2420, the UE 115 can transmit the plurality of uplink transmissions during the partition using one or more of the CCs. 2420 operations can be performed according to the methods described here. In certain examples, aspects of 2420 operations can be performed by an uplink transmission manager as described with reference to Figures 13 to 16. Uplink transmissions can have an aggregate transmission power that is less than or equal to the power maximum transmission.
[0276] [0276] Figure 25 shows a flow chart illustrating a 2500 method for energy control techniques using carrier aggregation in wireless communications in accordance with aspects of the present disclosure. Method 2500 operations can be implemented by a UE 115 or its component as described here. For example, method 2500 operations can be performed by a UE communications manager as described with reference to Figures 13 to 16. In some examples, a UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0277] [0277] In 2505, the UE 115 can establish a connection with a base station, the connection that supports two or more component carriers (CCs). 2505 operations can be performed according to the methods described here. In certain examples, aspects of 2505 operations can be performed by a connection-making component as described with reference to Figures 13 to 16. In some cases, the connection can be established according to connection-making techniques in which a UE can request a connection (for example, through a random access request) to the base station. In some cases, the UE during the connection establishment procedure may indicate that the UE is capable of supporting two or more CCs, and the connection can be established that supports the two or more CCs.
[0278] [0278] In 2510, the UE 115 can receive a plurality of uplink resource grants for a plurality of uplink transmissions on two or more CCs during a partition, where a first uplink transmission from the uplink transmission set has a first priority that is higher than at least a second priority of a second uplink transmission from the set of uplink transmissions that overlaps the first uplink transmission. The 2510 operations can be performed according to the methods described here. In certain examples, aspects of the 2510 operations can be performed by an uplink transmission manager as described with reference to Figures 13 to 16. In some cases, the plurality of grants is received at least for a predetermined time before a start of the partition, so that the UE can perform power control calculations based on uplink transmission powers for uplink transmissions provided by the concessions. In some cases, the plurality of concessions can be received in DCI from the base station.
[0279] [0279] In 2515, the UE 115 can scale a second transmission power from the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a maximum power limit. 2515 operations can be performed according to the methods described here. In certain examples, aspects of the 2515 operations can be performed by a power scaling component as described with reference to Figures 13 to
[0280] [0280] In 2520, the UE 115 can transmit the plurality of uplink transmissions during the partition using two or more CCs. The 2520 operations can be performed according to the methods described here. In certain examples, aspects of the 2520 operations may be performed by an uplink transmission manager as described with reference to Figures 13 to 16. Uplink transmissions may have an aggregate transmission power that is less than or equal to the power maximum transmission.
[0281] [0281] It should be noted that the methods described above describe possible implementations, and that operations and steps can be reorganized or modified in another way and that other implementations are possible. In addition, aspects of two or more of the methods can be combined.
[0282] [0282] The techniques described in this document can be used for various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), multiple operator single access frequency division (SC-FDMA) and other systems. A CDMA system can implement radio technology, such as CDMA2000, Universal Access by Terrestrial Radio (UTRA), etc. CDMA2000 covers the IS-2000, IS-95 and IS-856 standards. IS-2000 versions can be commonly referred to as CDMA2000 1X, 1X, etc. THE
[0283] [0283] An OFDMA system can implement radio technology such as ultra mobile broadband (UMB) (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronic Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, NR and GSM are described in documents of the organization called “3rd Generation Partnership Project” (3GPP). CDMA2000 and UMB are described in documents from an organization called “3rd Generation Partnership Project 2” (3GPP2). The techniques described here can be used for the radio systems and technologies mentioned above, as well as other radio systems and technologies. Although aspects of an LTE or NR system can be described for example, and LTE or NR terminology can be used in much of the description, the techniques described here are applicable in addition to LTE or NR applications.
[0284] [0284] A macro cell usually covers a relatively large geographical area (for example, several kilometers in radius) and can allow unrestricted access by UEs 115 with service subscriptions with the network provider. A small cell can be associated with a lower power base station 105, compared to a macro cell, and a small cell can operate in the same or different frequency bands (for example, licensed, unlicensed, etc.) as macro cells . Small cells can include pico cells, femto cells and microcells according to several examples. A peak cell, for example, can cover a small geographic area and can allow unrestricted access by UEs 115 with service subscriptions with the network provider. A femto cell can also cover a small geographic area (for example, a house) and can provide access restricted by the UEs 115 having an association with the femto cell (for example, UEs 115 in a closed subscriber group (CSG) processing unit central UEs 115 for users in the home and so on). An eNB for a macro cell can be called an eNB macro. A small cell eNB can be referred to as a small cell eNB, a peak eNB, a femto eNB, or a domestic eNB. An eNB can support one or more cells (for example, two, three, four and the like) and can also support communications using one or more component carriers.
[0285] [0285] The wireless communication system 100 or systems described in this document can support synchronous or asynchronous operation. For synchronous operation, base stations 105 may have similar frame timing and transmissions from different base stations 105 may be approximately time aligned. For asynchronous operation, base stations 105 may have different frame timing and transmissions from different base stations 105 may not be time aligned. The techniques described in this document can be used for synchronous or asynchronous operations.
[0286] [0286] The information and signals described here can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles or any combination of the same.
[0287] [0287] The various blocks and illustrative modules described in connection with the disclosure contained herein can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an array field programmable ports (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware component or any combination thereof designed to perform the functions described here. A general purpose processor can be a microprocessor, but, alternatively, the processor can be any processor, controller, microcontroller or conventional state machine. A processor can also be implemented as a combination of computing devices (for example, a combination of a DSP and a microprocessor, several microprocessors, one or more microprocessors in conjunction with a DSP core or any other configuration).
[0288] [0288] The functions described in this document can be implemented in hardware, software executed by a processor, firmware or any combination thereof. If implemented in software run by a processor, the functions can be stored or transmitted as one or more instructions or code in a computer-readable medium. Other examples and implementations are within the scope of the disclosure and attached claims. For example, due to the nature of the software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring or combinations of any of them. Features that implement functions can also be physically located in various positions, including distribution, so that parts of the functions are implemented in different physical locations.
[0289] [0289] Computer-readable media includes non-transitory computer storage media and communication media, including any means that facilitates the transfer of a computer program from one place to another. A non-transitory storage medium can be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not by way of limitation, non-transitory computer-readable media may comprise random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory, disk ROM compact disc (CD) or other optical disk storage, magnetic disk storage or other magnetic storage devices or any other non-transitory medium that can be used to transport or store desired program code media in the form of instructions or data structures and that can be accessed by a general purpose or special use computer or by a general purpose or special use processor. In addition, any connection is properly called a computer-readable medium. For example, if the software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave , coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies, such as infrared, radio and microwave, are included in the media definition. Floppy and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disc and Blu-ray disc, where discs generally reproduce data magnetically, while discs reproduce data optically with lasers. The above combinations are also included in the scope of computer-readable media.
[0290] [0290] As used here, including in the claims, “or” used in a list of items (for example, a list of items preceded by a phrase such as “at least one of” or “one or more of”) indicates a list inclusive that, for example, a list of at least one of A, B or C means A or B or C or AB or AC or BC or ABC (ie A and B and C). In addition, as used herein, the phrase “based on” should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step that is described as “based on condition A” can be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase “based on” must be interpreted in the same way as the phrase “based, at least in part”.
[0291] [0291] In the attached figures, components or similar characteristics may have the same reference label. In addition, several components of the same type can be distinguished by following the reference label by a dash and a second label which distinguishes between similar components. If only the first reference label is used in the specification, the description will apply to any of the similar components that have the same first reference label, regardless of the second reference label or any subsequent reference label.
[0292] [0292] The description presented here, in connection with the accompanying drawings, describes example configurations and does not represent all examples that can be implemented or that are within the scope of the claims. The term "exemplary" used here means "to serve as an example, instance or illustration" and not "preferred" or "advantageous over other examples". The detailed description includes specific details in order to provide an understanding of the techniques described. These techniques, however, can be practiced without these specific details. In some cases, known structures and devices are shown in the form of a block diagram to avoid obscuring the concepts of the examples described.
[0293] [0293] The description here is provided to allow a person skilled in the art to make or use the disclosure.
Various modifications to the disclosure will be readily apparent to persons skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure.
Thus, the disclosure is not limited to the examples and drawings described here, but should receive the broadest scope consistent with the principles and new resources disclosed here.

权利要求:
Claims (1)
[1]
1. Method for wireless communication, comprising: establishing, in a UE, a connection with a base station, the connection that supports two or more component carriers (CCs); receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of grants is received for at least a predetermined time before a partition starts, in which a power transmit transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition; scaling a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit; and transmitting the plurality of uplink transmissions during the partition using one or more of the CCs.
2. Method according to claim 1, wherein the scheduling is performed based on an order of priority associated with the subset of the plurality of uplink transmissions in relation to another of the plurality of uplink transmissions outside the subset of the plurality of uplink transmissions.
3. Method according to claim 2, wherein the order of priority is based at least in part on one or more of a channel type associated with each of the plurality of uplink transmissions, a type of control information uplink transmissions (UCI) transmitted through each of the plurality of uplink transmissions, or any combination thereof.
A method according to claim 1, further comprising: receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition starts; and discarding the additional responsive uplink transmission to determine that the additional uplink transmission would increase an aggregated transmission power of the UE above the maximum power limit.
A method according to claim 1, further comprising: receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition starts; and transmitting the additional responsive uplink transmission to determine that the additional uplink transmission would not increase an aggregated transmission power of the UE above the maximum power limit.
A method according to claim 1, wherein the predetermined time to receive the plurality of concessions is pre-configured or signaled between the base station and the UE.
A method according to claim 1, wherein the predetermined time to receive the plurality of grants is based at least in part on a capacity of the UE.
8. The method of claim 1, wherein a first CC of the two or more CCs belongs to a different timing advance group (TAG) than a second CC of the two or more CCs, and in which a the start of the first CC partition precedes an end time of a previous partition of the second CC.
9. Method according to claim 8, in which the method further comprises: scaling the transmission power independently of an overlapping period responsive to the overlapping period being less than or equal to an overlapping limit, where the overlap period corresponds to a period between the start time of the first CC partition and the end time of the previous partition of the second CC, and the overlap limit corresponds to an amount of time that is exempted from the maximum power limit for the UE.
A method according to claim 8, wherein the method further comprises: discarding an overlapping uplink transmission from the first CC or the second CC to provide an aggregate transmit power during an overlap period that is less than or equal the maximum power limit responsive to the overlap period that exceeds an overlap limit, where the overlap period is between the start time of the first CC partition and the end time of the previous partition of the second CC, and the overlap limit corresponds to an amount of time that is exempted from the maximum power limit for the UE.
A method according to claim 8, wherein the method further comprises: scaling the transmit power for uplink transmissions from one or more of the first DC and the second DC to provide an aggregate transmit power during an overlap period which is less than or equal to the maximum power limit responsive to the overlap period between the start time of the first CC partition and the end time of the previous partition of the second CC that exceeds an overlap limit, where the overlap limit corresponds to an amount of time that is exempted from the maximum power limit for the UE.
12. Method for wireless communication, comprising: establishing, in a user equipment (UE), a connection with a base station, the connection that supports two or more component carriers (CCs); receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of grants is received for at least a predetermined time before a partition starts, in which a first uplink transmission of the plurality of uplink transmissions has a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission; scaling a second transmission power from the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a maximum power limit; and transmit the plurality of uplink transmissions during the partition using the two or more CCs.
13. The method of claim 12, wherein: a remaining power is available between the aggregated transmission power of the UE and the maximum power limit; a third uplink transmission overlaps with the first uplink transmission and the second uplink transmission, and has a lower priority than the first priority and second priority; and where the method further comprises: allocating the remaining power to the third uplink transmission.
14. The method of claim 12, wherein uplink streams that have already started have a higher priority than other uplink streams.
15. Method according to claim 12, wherein the plurality of uplink transmissions is prioritized according to whether the uplink transmission is an ongoing transmission, a type of uplink transmission, information to be transmitted, or any combination the same.
16. The method of claim 12, wherein the UE still scales more than one uplink transmission having the same priority so that the aggregated transmission power of the UE is less than or equal to the maximum power limit.
17. The method of claim 12, wherein each symbol of an uplink transmission during the partition has the same transmission power.
18. Apparatus for wireless communication, comprising: means to establish, in a user equipment (UE), a connection with a base station, the connection that supports two or more component carriers (CCs); means for receiving a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, wherein the plurality of grants is received at least for a predetermined time before a partition starts, where a transmission power transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition; means for scaling a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit; and means for transmitting the plurality of uplink transmissions during the partition using one or more of the CCs.
An apparatus according to claim 18, further comprising: means for receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition begins; and means for discarding the additional responsive uplink transmission to determine that the additional uplink transmission would increase an aggregated transmission power of the UE above the maximum power limit.
An apparatus according to claim 18, further comprising: means for receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition begins; and means for transmitting the additional responsive uplink transmission to determine that the additional uplink transmission would not increase an aggregated transmission power of the UE above the maximum power limit.
21. Apparatus according to claim 18, wherein a first CC of the two or more CCs belongs to a different timing advance group (TAG) than a second CC of the two or more CCs, and in which a start of the first CC partition precedes an end time of a previous partition of the second CC, and in which: the means to scale, responsive to determine that an overlap period is less than or equal to an overlap limit, scale the power transmission time regardless of the overlap period, where the overlap period corresponds to a period between the start time of the first CC partition and the end time of the previous partition of the second CC, and the overlap limit corresponds to an amount of time which is exempt from the maximum power limit for the UE.
22. Apparatus for wireless communication, comprising: means to establish, in a user equipment (UE), a connection with a base station, the connection that supports two or more component carriers (CCs); means for receiving a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, wherein the plurality of grants is received at least for a predetermined time before a partition starts, where a first uplink transmission of the plurality of uplink transmissions has a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission; means for scaling a second transmission power from the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a maximum power limit; and means for transmitting the plurality of uplink transmissions during the partition using the two or more CCs.
23. Apparatus according to claim 22, wherein: a remaining power is available between the aggregated transmission power of the UE and the maximum power limit; a third uplink transmission overlaps with the first uplink transmission and the second uplink transmission, and has a lower priority than the first priority and second priority; and wherein the apparatus further comprises: means for allocating the remaining power to the third uplink transmission.
24. Apparatus according to claim 22, wherein the plurality of uplink transmissions is prioritized according to whether the uplink transmission is an ongoing transmission, a type of uplink transmission, information to be transmitted, or any combination the same.
25. Apparatus according to claim 22, wherein the UE still scales more than one uplink transmission having the same priority so that the aggregated transmission power of the UE is less than or equal to the maximum power limit.
26. Apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in memory and executable by the processor makes the device: establish, in a UE, a connection with a base station, the connection that supports two or more component carriers (CCs); receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of grants is received for at least a predetermined time before a partition starts, in which a power transmit transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition; scaling a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit; and transmitting the plurality of uplink transmissions during the partition using one or more of the CCs.
27. Apparatus, according to claim 26, wherein the instructions are still executable by the processor to make the apparatus: receiving an additional concession for an additional uplink transmission after the predetermined time and before the partition starts; and discarding the additional responsive uplink transmission to determine that the additional uplink transmission would increase an aggregated transmission power of the UE above the maximum power limit.
28. Apparatus according to claim 26, wherein the instructions are still executable by the processor to make the apparatus: receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition starts; and transmitting the additional responsive uplink transmission to determine that the additional uplink transmission would not increase an aggregated transmission power of the UE above the maximum power limit.
29. Apparatus according to claim 26, wherein a first CC of the two or more CCs belongs to a different timing advance group (TAG) than a second CC of the two or more CCs, and in which a start of the first CC partition precedes an end time of a previous partition of the second CC, and in which the instructions are still executable by the processor to make the device: scalar, responsive to determine that an overlap period is less than or equal to an overlap limit, the transmission power regardless of the overlap period, where the overlap period corresponds to a period between the start time of the partition of the first CC and the end time of the previous partition of the second CC, and the limit of overlap corresponds to an amount of time that is exempted from the maximum power limit for the UE.
30. Apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in memory and executable by the processor to make the device: establish, in a user equipment (UE), a connection with a base station, the connection that supports two or more component carriers (CCs); receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of grants is received for at least a predetermined time before a partition starts, in which a first uplink transmission of the plurality of uplink transmissions has a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission; scaling a second transmission power from the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a maximum power limit; and transmit the plurality of uplink transmissions during the partition using the two or more CCs.
31. Apparatus according to claim 30, wherein: a remaining power is available between the aggregated transmission power of the UE and the maximum power limit; a third uplink transmission overlaps with the first uplink transmission and the second uplink transmission, and has a lower priority than the first priority and second priority; and where the instructions are still executable by the processor to make the device: allocate the remaining power to the third uplink transmission.
31. Apparatus according to claim 30, wherein the plurality of uplink transmissions is prioritized according to whether the uplink transmission is an ongoing transmission, a type of uplink transmission, information to be transmitted, or any combination the same.
32. Non-transitory computer-readable medium that stores code for wireless communication, the code comprising instructions executable by a processor to: establish, in a UE, a connection with a base station, the connection that supports two or more component carriers ( CCs); receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of grants is received for at least a predetermined time before a partition starts, in which a power transmit transmits the plurality of uplink transmissions that exceed a maximum power limit for the UE during at least a portion of the partition; scaling a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power limit; and transmitting the plurality of uplink transmissions during the partition using one or more of the CCs.
34. Non-transitory computer-readable medium according to claim 33, in which the instructions are still executable for: receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition starts; and discarding the additional responsive uplink transmission to determine that the additional uplink transmission would increase an aggregated transmission power of the UE above the maximum power limit.
35. Non-transitory computer-readable medium according to claim 33, in which the instructions are still executable for: receiving an additional grant for an additional uplink transmission after the predetermined time and before the partition starts; and transmitting the additional responsive uplink transmission to determine that the additional uplink transmission would not increase an aggregated transmission power of the UE above the maximum power limit.
36. Non-transitory computer-readable medium according to claim 33, wherein a first CC of the two or more CCs belongs to a different timing advance group (TAG) than a second CC of the two or more CCs, and where a start time for the first CC partition precedes an end time for a previous partition for the second CC, and where instructions are still executable for: scaling, responsive to determine that an overlap period is less than or equal to an overlap limit, the transmission power regardless of the overlap period, where the overlap period corresponds to a period between the start time of the partition of the first CC and the end time of the previous partition of the second CC, and the limit of overlap corresponds to an amount of time that is exempted from the maximum power limit for the UE.
37. Non-transitory computer-readable medium that stores code for wireless communication, the code comprising instructions executable by a processor to: establish, in a user equipment (UE),
a connection to a base station, the connection that supports two or more component carriers (CCs); receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a partition, where the plurality of grants is received for at least a predetermined time before a partition starts, in which a first uplink transmission of the plurality of uplink transmissions has a first priority that is higher than at least a second priority of a second uplink transmission of the plurality of uplink transmissions that overlaps the first uplink transmission; scaling a second transmission power from the second uplink transmission so that an aggregated transmission power of the UE is less than or equal to a maximum power limit; and transmit the plurality of uplink transmissions during the partition using the two or more CCs.
38. Non-transient computer-readable medium according to claim 37, wherein: a remaining power is available between the aggregated transmission power of the UE and the maximum power limit; a third uplink transmission overlaps with the first uplink transmission and the second uplink transmission, and has a lower priority than the first priority and second priority; and where the instructions are still executable to: allocate the remaining power to the third uplink transmission.
39. Non-transitory computer-readable medium, according to claim 37, in which the plurality of uplink transmissions is prioritized according to whether the uplink transmission is an ongoing transmission, a type of uplink transmission, information to be transmitted, or any combination thereof.

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WO2019099137A1|2019-05-23|

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法律状态:
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优先权:

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申请号 | 申请日 | 专利标题

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US201762588205P| true| 2017-11-17|2017-11-17|

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US201762588164P| true| 2017-11-17|2017-11-17|

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US62/588,164|2017-11-17|

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US62/588,205|2017-11-17|

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US15/974,372|2018-05-08|

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US15/974,372|US10708865B2|2017-11-17|2018-05-08|Techniques for power control using carrier aggregation in wireless communications|

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PCT/US2018/056177|WO2019099137A1|2017-11-17|2018-10-17|Techniques for power control using carrier aggregation in wireless communications|

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