beam management for batch reception connected with advanced lease indicator

专利摘要:
The present invention relates to methods, systems and devices for wireless communication. A base station can transmit, to a user equipment (UE) operating in a batch reception mode, an activation signal indicating whether data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams, which can be selected from a periodic beam management procedure, according to a beam scan configuration. The base station can receive, from the UE and based at least in part on the activation signal, a response signal. The base station may perform, at least in part based on the response signal, additional beam update procedures to identify a second set of transmission beams for future transmissions of the activation signal and / or for the control channel transmission physical downlink link (PDCCH) to the UE.
公开号:BR112020003076A2
申请号:R112020003076-7
申请日:2018-08-20
公开日:2020-08-25
发明作者:Jianghong LUO；Muhammad Nazmul Islam；Sumeeth Nagaraja；Ashwin Sampath；Sundar Subramanian
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[001] [001] This Patent Application claims the benefit of Provisional Patent Application No. US 62 / 548,142 by Luo, et al., Entitled “Beam Management for Connected Discontinuous Reception with Advanced Grant Indicator”, filed on Monday, 21 August 2017; and Provisional Patent Application No. 16 / 104,656 by Luo, et al., entitled “Beam Management for Connected Discontinuous Reception with Advanced Grant Indicator”, filed on Friday, August 17, 2018; each of which is assigned to their assignee. BACKGROUND
[002] [002] The following description refers, in general, to wireless communication, and more specifically to beam management for connected discontinuous reception (C-DRX) with an advanced concession indicator (AGI).
[003] [003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messages, broadcast and so on. These systems may be able to support communication with multiple users by sharing available system resources (for example, time, frequency and power). Examples of such multiple access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems or Advanced LTE systems (LTE-A), and fifth generation (5G) systems that can be called systems of Novo Rádio (NR). These systems can employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or multiplexing by orthogonal frequency division spread by discrete Fourier transform (DFT-S-OFDM). A wireless multiple access communication system can include multiple base stations or network access nodes, each simultaneously supporting communication for multiple communication devices, which may otherwise be known as user equipment (UE).
[004] [004] Wireless communication systems can operate in millimeter wave frequency bands (mmW), for example, 28 GHz, 40 GHz, 60 GHz, etc. Wireless communication at these frequencies can be associated with increased signal attenuation (for example, loss of path), which can be influenced by several factors, such as temperature, barometric pressure, diffraction, etc. As a result, signal processing techniques, such as beam formation, can be used to coherently combine energy and overcome path losses at these frequencies. Due to the increased amount of path loss in mmW communication systems, transmissions from the base station and / or the UE can be subjected to beam formation.
[005] [005] A UE can operate in a discontinuous reception (DRX) mode (for example, a C-DRX mode) in which the UE transitions between an active state (for example, in which the UE is activated during an On Duration for determine if data is available for the UE) and a state of latency (for example, when the UE shuts down several processes / hardware to save energy). Conventionally, the UE can determine whether data is available by monitoring a control channel, such as a downlink physical control channel (PDCCH). The PDCCH can load or otherwise transmit an indication that the base station has data ready to transmit to the UE. In an mmW wireless communication system, the mmW base station (for example, a next generation B node (g B)) may need to scan the PDCCH transmissions for beam to mitigate high path losses associated with mmW transmissions. This may result in the UE attempting to decode the PDCCH several times and / or be activated for a longer period of time to receive and decode the transmissions from the PDCCH and / or allow the management of the beam. Energy consumption in the UE using such techniques can be high. SUMMARY
[006] [006] The techniques described refer to improved methods, systems, devices or devices that support beam management for connected discontinuous reception (C-DRX) with advanced concession indicator (AGI). In general, the techniques described provide the transmission of an activation signal to a user equipment (UE) in a latent state of a discontinuous reception mode (DRX) (for example, a C-DRX mode). The activation signal can charge or otherwise transmit an indication regarding the possibility that the base station has data to transmit to the UE. For example, a base station can transmit the trigger signal in a beam scan pattern using a set of transmit beams. The UE can receive the activation signal and determine whether the data is available to be transmitted to the UE. The UE can transmit a response signal based on the activation signal that confirms receipt of the indication that data is available to be transmitted to the UE (if applicable) and includes beam status information if one or more transmission beams in the pool transmission beams are performing well or are below a performance limit. The base station and the UE can perform a beam update procedure based on the response signal to identify a new set of transmit beams that should be used to transmit subsequent instances of the trigger signal. In some aspects, beam management for a regular physical downlink control (PDCCH) channel signal can also be performed after an AGI indicating that the traffic is acknowledged by the UE. In some respects, a separate periodic beam management procedure can be performed to select the transmission beams to be used by AGI.
[007] [007] In some respects, the response signal may include confirmation of the indication that the traffic is available to transmit the UE and the status of the transmission beams in the set of transmission beams, however the beam update procedure may not be guaranteed. For example, if one or both of the transmission beams in the transmission beam pool are running at or above the performance threshold, the beam update procedure may not be performed. Thus, in some cases, the response signal may carry, or otherwise, transmit an indication that the UE has received the indication that the data is available to the UE.
[008] [008] A wireless communication method is described. The method may include transmitting, to an UE operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration, receive, from the UE and based at least in part on the activation signal, a response signal, and perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[009] [009] The device for wireless communication is described. The apparatus may include means for transmitting, to an UE operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams of according to a beam-scanning configuration, means for receiving, from the UE and based at least in part on the activation signal, a response signal, and means for performing, based at least in part on the response signal, a procedure update beam to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[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 cause the processor to transmit, to an UE operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, the transmitted activation signal using a first set transmission beams according to a beam scan configuration, receive, from the UE and based at least in part on the activation signal, a response signal, and perform, based at least in part on the response signal, a update beam procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[0011] [0011] A non-temporary computer-readable medium for wireless communication is described. The non-temporary computer-readable medium may include instructions operable to cause a processor to transmit, to an UE operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, the signal being transmitted activation uses a first set of transmission beams according to a beam scan configuration, receive, from the UE and based at least in part on the activation signal, a response signal, and perform, based at least in part in the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[0012] [0012] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for configuring the activation signal to indicate that the data may be available to be transmitted to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for receiving, based at least in part on the activation signal, the response signal indicating that the UE may have received an indication that the data may be available to be transmitted to the UE.
[0013] [0013] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the response signal comprises a beam progress report.
[0014] [0014] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be received from the UE in response to each transmission of the activation signal.
[0015] [0015] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be received from the UE in response to at least one transmission beam in the first set of transmission beams below the performance limit.
[0016] [0016] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for transmitting a trigger message to the UE,
[0017] [0017] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions to identify that the data may be available for transmission to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for configuring the activation signal to indicate that the data may be available to be transmitted to the UE, where the transmission of the activation signal can occur in response to the data that is available.
[0018] [0018] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for programming the beam update procedure based at least in part on the response signal, where the beam update procedure comprises a transmission of aperiodic channel status information reference signal (CSI-RS).
[0019] [0019] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for carrying out an additional beam update procedure according to a periodic program, based on at least part in a whole number of DRX cycles.
[0020] [0020] In some examples of the method, apparatus,
[0021] [0021] In some examples of the method, apparatus, and non-temporary computer-readable medium described above, the additional beam update procedure comprises the transmission of a periodic CSI-RS, a periodic synchronization signal, or combinations thereof.
[0022] [0022] Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions for identifying a communication metric associated with communication with the UE, with other UEs, or combinations thereof . Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for selecting a value for the entire number of XRD cycles based at least in part on the communication metric.
[0023] [0023] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the communication metric comprises a beam coherence time, a traffic arrival statistic, or combinations thereof.
[0024] [0024] Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions to perform, based at least on the reception of the response signal, a beam management procedure for identifying a third set of transmission beams for a PDCCH signal, the PDCCH signal indicating a grant of resources used to transmit the data to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for transmitting the data to the UE using the indicated resources.
[0025] [0025] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions to receive, based at least in part on the PDCCH signal, an additional response signal indicating at least one transmission beam from the third set of transmission beams. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for selecting, at least in part based on the indication, the at least one transmission beam to transmit the data to. HUH.
[0026] [0026] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the third set of transmission beams comprises a subset of the first or second sets of transmission beams.
[0027] [0027] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the third set of transmission beams comprises a beam width narrower than a beam width of the first or second sets of transmission beams.
[0028] [0028] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the transmission beams in the first or second set of transmission beams comprise pseudo-omni transmission beams.
[0029] [0029] In some examples of the method, apparatus, and non-temporary computer-readable medium described above, the activation signal comprises a narrow band tone, or a specific EU reference signal, or a PDCCH including a bit indicating that the UE may be about to awaken from a state of latency, or a combination thereof.
[0030] [0030] Some examples of the non-temporary computer-readable method, device or medium described above may additionally include processes, resources, means, or instructions for setting the activation signal to include a bit that can be transmitted when data is available to be transmitted to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for setting the activation signal to refrain from transmitting the bit when there is no data available to be transmitted to the UE .
[0031] [0031] A wireless communication method is described. The method may include receiving, from a base station and while operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration, determine, based at least in part on the activation signal, that data is available to be transmitted to the UE, transmit, based on at least in part the determination, a response signal, and perform, at least in part based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[0032] [0032] The device for wireless communication is described. The device may include means for receiving, from a base station and while operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the transmitted activation signal using a first set of beams transmission according to a beam-scanning configuration, means for determining, based at least in part on the activation signal, that data is available to be transmitted to the UE, means for transmitting, based at least in part on the determination, a response signal, and means for performing, at least in part based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[0033] [0033] 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 receive, from a base station and while operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration, determine, based at least in part on the activation signal, that data is available to be transmitted to the UE, transmit, based at least in part on the determination , a response signal, and perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[0034] [0034] A non-temporary computer-readable medium for wireless communication is described. The non-temporary computer-readable medium can include operable instructions to have a processor receive, from a base station and while operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, and the transmitted activation signal uses a first set of transmission beams according to a beam-scanning configuration, determine, based at least in part on the activation signal, that data is available to be transmitted to the UE, transmit, based at least in part in the determination, a response signal, and perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE .
[0035] [0035] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the response signal comprises a beam progress report.
[0036] [0036] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be transmitted to the base station in response to each activation signal transmission.
[0037] [0037] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be transmitted to the base station in response to at least one transmission beam in the first set of transmission beams that is below the performance threshold.
[0038] [0038] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for receiving, a base station triggering message, in which the beam update procedure may be based at least in part on the trigger message.
[0039] [0039] Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions for performing, based on at least the reception of the response signal, a beam management procedure for identifying a third set of transmission beams for a PDCCH signal, the PDCCH signal indicating a grant of resources used to transmit the data to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for receiving data from the base station using the indicated resources.
[0040] [0040] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for transmitting, based at least in part on the PDCCH signal, an additional response signal indicating at least at least one transmission beam from the third set of transmission beams, where data can be received from the base station based at least in part on at least one transmission beam.
[0041] [0041] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the third set of transmission beams comprises a beam width narrower than a beam width of the first or second sets of transmission beams.
[0042] [0042] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the third set of transmission beams comprises a subset of the first or second sets of transmission beams.
[0043] [0043] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the transmission beams in the first or second sets of transmission beams comprise pseudo-omni transmission beams.
[0044] [0044] In some examples of the method, apparatus,
[0045] [0045] A wireless communication method is described. The method may include transmitting, to an UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the transmitted activation signal using a set of transmission beams according to a configuration of the beam scan and receive, from the UE and based at least in part on the activation signal, a response signal indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[0046] [0046] The device for wireless communication is described. The apparatus may include means for transmitting, to an UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the transmitted activation signal using a set of transmission beams according to with a beam-scanning configuration and means for receiving, from the UE and based at least in part on the activation signal, a response signal indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[0047] [0047] 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 cause the processor to transmit, to an UE operating in a DRX mode, an activation signal indicating that the data is available to be transmitted to the UE, the transmitted activation signal using a set of transmission beams according to a beam-scan configuration and receive, from the UE and based at least in part on the activation signal, a response signal indicating that the UE has received the indication that the data is available to be transmitted to the UE .
[0048] [0048] A non-temporary computer-readable medium for wireless communication is described. The non-temporary computer-readable medium may include instructions operable to cause a processor to transmit, to a UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the signal being transmitted activation uses a set of transmission beams according to a beam scan configuration and receives, from the UE and based at least in part on the activation signal, a response signal indicating that the UE has received the indication that the data is available for transmission to the UE.
[0049] [0049] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the response signal comprises a beam progress report.
[0050] [0050] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be received from the UE in response to each transmission of the activation signal.
[0051] [0051] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be received from the UE when at least one transmission beam in the transmission beam set is below the performance limit .
[0052] [0052] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be transmitted to the base station when at least one transmission beam in the transmission beam set is below the limit of performance.
[0053] [0053] Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions to perform, based on at least the reception of the response signal, a beam management procedure for identifying a second set of transmission beams for a PDCCH signal, the PDCCH signal indicating a grant of resources used to transmit the data to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for transmitting the data to the UE using the indicated resources.
[0054] [0054] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions to receive, based at least in part on the PDCCH signal, an additional response signal indicating at least one transmission beam from the second set of transmission beams. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for selecting, at least in part based on the indication, the at least one transmission beam to transmit the data to. HUH.
[0055] [0055] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions to receive, based at least in part on the PDCCH signal, an additional response signal indicating an request for the beam management procedure. Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions for initiating the beam management procedure with the UE based on at least the response to the additional response signal.
[0056] [0056] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the second set of transmission beams comprises a beam width narrower than a beam width of the set of transmission beams used to transmit the activation signal.
[0057] [0057] A wireless communication method is described. The method may include receiving, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmission beams according to a beam scan configuration, determining, based at least in part on the activation signal, that data is available to be transmitted to the UE, and transmit a response signal to the base station indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[0058] [0058] The device for wireless communication is described. The apparatus may include means for receiving, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmission beams according to a beam-scanning configuration, means for determining, based on the less in part in the activation signal, that data is available to be transmitted to the UE, and means to transmit a response signal to the base station indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[0059] [0059] 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 have the processor receive, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmit beams according to a beam scan configuration, determine, based at least in part on the activation signal, that the data is available to be transmitted to the UE, and transmit a response signal to the base station indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[0060] [0060] A non-temporary computer-readable medium for wireless communication is described. The non-temporary computer-readable medium may include operable instructions to have a processor receive, from a base station and while operating in DRX mode, an activation signal transmitted using a set of transmission beams according to a configuration of beam scan, determine, based at least in part on the trigger signal, that the data is available to be transmitted to the UE, and transmit a response signal to the base station indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[0061] [0061] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the response signal comprises a beam progress report.
[0062] [0062] In some examples of the non-temporary computer-readable method, apparatus and medium described above, the beam progress report can be transmitted to the base station in response to each activation signal received.
[0063] [0063] Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions for performing, based on at least the reception of the response signal, a beam management procedure for identifying a second set of transmission beams for a PDCCH signal, the PDCCH signal indicating a grant of resources used to transmit the data to the UE. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for receiving data from the base station using the indicated resources.
[0064] [0064] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for transmitting, based at least in part on the PDCCH signal, an additional response signal indicating at least one transmission beam from the second set of transmission beams. Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for receiving, based at least in part on the indication, the data transmitted using at least one transmission beam.
[0065] [0065] Some examples of the non-temporary computer-readable method, apparatus or medium described above may additionally include processes, resources, means, or instructions for transmitting, based at least in part on the PDCCH signal, an additional response signal indicating an request for the beam management procedure. Some examples of the non-temporary computer-readable method, apparatus and medium described above may additionally include processes, resources, means, or instructions for initiating the beam management procedure with the base station based on at least the response to the additional response signal. .
[0066] [0066] In some examples of the non-temporary computer-readable method, apparatus or medium described above, the second set of transmission beams comprises a beam width narrower than a beam width of the set of transmission beams used to transmit the activation signal. BRIEF DESCRIPTION OF THE DRAWINGS
[0067] [0067] Figure 1 illustrates an example of a wireless communication system that supports beam management for connected discontinuous reception (C-DRX) with advanced concession indicator (AGI) according to aspects of the present disclosure.
[0068] [0068] Figure 2 illustrates an example of an activation configuration that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0069] [0069] Figure 3 illustrates an example of an activation configuration that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0070] [0070] Figure 4 illustrates an example of an activation configuration that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0071] [0071] Figure 5 illustrates an example of an activation configuration that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0072] [0072] Figure 6 illustrates an example of an activation configuration that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0073] [0073] Figure 7 illustrates an example of an activation configuration that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0074] [0074] Figures 8 to 10 show block diagrams of a device that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0075] [0075] Figure 11 illustrates a block diagram of a system that includes a base station that supports beam management for C-DRX with AGI according to aspects of the present disclosure.
[0076] [0076] Figures 12 to 14 show block diagrams of a device that supports beam management for C-DRX with AGI according to the aspects of the present disclosure.
[0077] [0077] Figure 15 illustrates a block diagram of a system that includes a UE that supports beam management for C-DRX with AGI according to aspects of the present disclosure.
[0078] [0078] Figures 16 to 21 illustrate beam management methods for C-DRX with AGI according to aspects of the present disclosure. DETAILED DESCRIPTION
[0079] [0079] A wireless device can implement a discontinuous reception cycle (DRX) to allow efficient use of battery power to receive downlink transmissions. A base station and user equipment (UE) can establish a radio resource control (RRC) connection and the UE can enter a state of latency when it is not actively communicating. For example, during the establishment of the RRC connection, a DRX configuration, including a DRX-On cycle duration and DRX-Off cycle, can be configured in an RRC connection configuration request or an RRC connection reconfiguration request. The DRX configuration can determine the frequency at which the UE is programmed to activate and monitor and receive downlink data according to the configured DRX cycle durations.
[0080] [0080] Some wireless communication systems can support beamed transmissions between the base station and the UE. For example, a wireless communication system can operate in millimeter wave frequency (mmW) bands (for example, 28 GHz, 40 GHz, 60 GHz, etc.). Wireless communication at frequencies of mmW can be associated with increased signal attenuation (for example, loss of path), which can be influenced by several factors, such as temperature, barometric pressure, diffraction, etc. As a result, signal processing techniques, such as beam formation, can be used to coherently combine energy and overcome path losses at these frequencies. A base station can use multiple antenna ports associated with antenna arrays for directional receiving beam configurations at the base station and one or more forward or beamform downlink transmissions. Similarly, a UE can use beamforming for directional receiving beams in the UE and for uplink transmission subjected to beamforming at the base station.
[0081] [0081] The aspects of the disclosure are initially described in the context of a wireless communication system. For example, a base station can use a set of transmission beams to transmit an activation signal to an UE. The activation signal can be or otherwise transmit an advanced concession indicator (AGI) to the UE. The activation signal can be transmitted before an On Duration of the DRX cycle and the AGI can provide an indication to the UE whether or not the base station has data available to transmit to the UE, for example, bit (s) which is / are transmitted when data is available and omitted when there is no data for the UE. The UE can receive the activation signal and respond with a response signal transmitted to the base station. The response signal can, when data is available to the UE, acknowledge or confirm that the UE has received the indication that data is available to the UE on the activation signal. Consequently, the base station can transmit a physical downlink control (PDCCH) channel signal to the UE including grant information for the resources that will be used to transmit the data to the UE.
[0082] [0082] In some respects, the base station and the UE can cooperate in a beam update procedure for the activation signal. For example, the base station can transmit the activation signal using a set of transmission beams (for example, two, three, etc., transmission beams) that are subjected to beam formation towards the UE. The UE can receive the activation signal in one or both of the transmission beams in the set of transmission beams and measure one or more performance metrics associated with the transmission beams, for example, received energy level, interference level, etc. The UE can configure the response signal to also indicate, if applicable, that at least one of the transmission beams is below a performance threshold. In some respects, this indication may be in the form of a gross measurement of the performance metric (for example, signal strength received from one or more transmission beams) or it may be in the form of a flag indicating that at least one of the transmission beams are below the performance limit. The base station can receive the response signal and, based on the indication, perform a beam update procedure with the UE to find a new set of transmission beams that must be used to communicate with the UE. The base station and the UE can then use the new set of transmission beams for future activation signal transmissions.
[0083] [0083] The aspects of the disclosure are further illustrated and described with reference to device diagrams, system diagrams, and flowcharts that refer to the beam management for connected discontinuous reception (C-DRX) with AGI.
[0084] [0084] Figure 1 illustrates an example of a wireless communication system 100 according to various aspects of the present disclosure. The wireless communication system 100 includes base stations 105, UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-Advanced network (LTE-A) or a New Radio (NR) network. In some cases, the wireless communication system 100 can support advanced broadband communication, ultra-reliable (e.g., critical) communication, low latency communication, or communication with low cost and low complexity devices.
[0085] [0085] Base stations 105 can communicate wirelessly with UEs 115 through one or more base station antennas. The base stations 105 described in this document can include or can be called by those skilled in the art of a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB ), a next-generation Node B or giga-nodeB (each of which may be called a gNB), a domestic NodeB, a domestic eNodeB, or some other suitable terminology. Wireless communication system 100 can include base stations 105 of different types (e.g., macro or small cell base stations). The UEs 115 described in this document 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.
[0086] [0086] Each base station 105 can be associated with a specific geographical coverage area 110 in which communication with several UEs 115 is supported. 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 may include uplink transmissions from a UE 115 to a base station 105, or downlink transmissions from a base station 105 to a UE
[0087] [0087] 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, an access point, 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 areas of overlapping geographic coverage 110 associated with different technologies can be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A or R network in which different types of base stations 105 provide coverage for various geographic coverage areas 110.
[0088] [0088] The term "cell" refers to a logical communication entity used to communicate with a base station 105 (for example, through a carrier), and can be associated with an identifier that distinguishes neighboring cells (for example , a physical cell identifier (PCID), a virtual cell identifier (VCID) that operates through the same or a different carrier. In some examples, a carrier can support multiple cells, and different cells can be configured according to different protocol types (for example, machine-type communication (MTC), narrowband Internet of Things (B-IoT), enhanced mobile broadband (eMBB), or others) that can provide access to different types of devices. In some cases, the term “cell” may refer to a portion of a geographic coverage area 110 (for example, a sector) through which the logical entity operates.
[0089] [0089] UEs 115 can be dispersed via wireless communication system 100, as shown, and each UE 115 can be stationary or mobile. An UE 115 can also be called a mobile device, a wireless device, a remote device, a portable device, or a subscriber device, or some other suitable terminology, where the “device” can also be called 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, laptop or personal computer. In some instances, an UE 115 may also refer to a local wireless circuit station (WLL), an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, or similar, which can be implemented in various items such as appliances, vehicles, meters or similar.
[0090] [0090] 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, through 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 instances, M2M or MTC communication may include communications from devices that integrate sensors or meters to measure or capture information and relay that information to a central server or application program that can make use of the information or present the information to humans interacting with the program or application.Some 115 UEs 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 monitoring, wildlife monitoring, climate and geological events, fleet management and tracking, remote security detection, physical access control and transaction-based business collection.
[0091] [0091] Some UEs 115 can be configured to employ operating modes that reduce energy consumption, such as half-duplex communication (for example, a mode that supports unidirectional communication through transmission or reception, but not transmission and reception simultaneously). In some instances, half-duplex communication can be performed at a reduced peak rate. Other energy-saving techniques for UEs 115 include entering energy-saving “deep latency” mode when they do not engage in active communication or operate over a limited bandwidth (for example, according to narrowband communication ). In some cases, UEs 115 can be designed to support critical functions (for example, essential functions) and a wireless communication system 100 can be configured to provide ultra-reliable communication for those functions.
[0092] [0092] In some cases, a UE 115 may also be able to communicate directly with other UEs 115 (for example, using a peer protocol (P2P) or device to device protocol (D2D)). One or more of a group of UEs 115 using D2D communication may be within the geographical coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside coverage area 110 of a base station 105 or , 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 for all other 115 UEs in the group. In some cases, a base station 105 makes it easy to program resources for D2D communication. In other cases, D2D communication is carried out between UEs 115 without the involvement of a base station 105.
[0093] [0093] Base stations 105 can communicate with core network 130 and with each other. For example, base stations 105 can interface with core network 130 through backhaul links 132 (for example, through an IS or other interface). Base stations 105 can communicate with each other via backhaul links 134 (for example, via an X2 or other interface) either directly (for example, directly between base stations 105) or indirectly (for example, through core network 130).
[0094] [0094] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, 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 Network gateway Packet Data (PDN) (P-GW). MME can manage stratum functions without access (eg, 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. The P-GW can provide IP address allocation as well as other functions. The P-GW can be connected to the IP services of network operators. Operator IP services may include Internet access, Intranet (s), an IP Multimedia Subsystem (IMS), or a Packet Switched Streaming Service (PS).
[0095] [0095] At least some 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 several other access network transmission entities, which can be called a radio head, 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 heads88 and access network controllers) or consolidated into a single network device (for example, a base station 105).
[0096] [0096] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. In general, the 300 MHz to 3 GHz region is known as the ultra-frequency region high (UHF) or decimeter band, since wavelengths vary from approximately one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features. However, waves can penetrate structures sufficiently for a macro cell to provide services to UEs 115 located indoors. The transmission of UHF waves can be associated with smaller antennas and less range (for example,
[0097] [0097] The wireless communication system 100 can also operate in a superhigh frequency region (SHF) using frequency bands from 3 GHz to 30 GHz, also known as the centimeter band. The SHF region includes bands such as the 5 GHz industrial, scientific and medical (ISM) bands, which can be used in a timely manner by devices that can tolerate interference from other users.
[0098] [0098] The wireless communication system 100 can also operate in an extremely high frequency (SHF) region of the spectrum (for example, from 30 GHz to 300 GHz), also known as the millimeter band. In some examples, the wireless communication system 100 can support mmW communication between UEs 115 and base stations 105, and the EHF antennas of the respective devices can be even smaller and more closely spaced than UHF antennas. In some cases, this can facilitate the use of antenna arrays within an UE 115. However, the spread of EHF transmissions can be subjected to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed in this document can be employed through broadcasts that use one or more different frequency regions, and the designated use of bands across those frequency regions may differ by country or regulatory body.
[0099] [0099] In some cases, the wireless communication system 100 can use both licensed and unlicensed frequency spectrum bands. For example, wireless communication system 100 may employ License Assisted Access (LAA) technology, LTE Unlicensed radio access (LTE-U) or NR technology in an unlicensed band such as the ISM 5 GHz band. operates in unlicensed radio frequency spectrum bands, wireless devices such as base stations 105 and UEs 115 can employ listen-before-talk (LBT) procedures to ensure that a frequency channel is free before data transmission.
[00100] [00100] In some cases, operations on unlicensed bands may be based on a CA configuration in conjunction with CCs that operate on a licensed band (for example, LAA). Operations on an unlicensed spectrum may include downlink transmissions, uplink transmissions, point-to-point transmissions, or a combination of these. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both. In some examples, the base station 105 or UE 115 can be equipped with multiple antennas, which can be used to employ techniques such as diversity of transmission, diversity of reception, communication of multiple inputs and multiple outputs (MIMO), or beam formation . For example, the wireless communication system can 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 it is equipped with multiple antennas and the reception devices are equipped with one or more antennas. MIMO communication can employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals through different spatial layers, which can be called spatial multiplexing. The multiple signals can, for example, be transmitted by the transmission device via different antennas or different antenna combinations. Similarly, multiple signals can be received by the receiving device via different antennas or different antenna combinations. Each of the multiple signals can be called a separate spatial stream, and can transmit bits associated with the same data stream (for example, the same code word) from different data streams. Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MFMO (SU-MIMO) in which multiple spatial layers are transmitted to the same receiving device, and multiple user MIMO (MU-MIMO) in which multiple spatial layers are transmitted to multiple devices.
[00101] [00101] Beam formation, which can also be called spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used in a transmitting device or a receiving device (for example, a base station 105 or an UE 115) to shape or direct an antenna beam (e.g., a transmit beam or receive beam) along a space path between the transmitting device and the receiving device. The beam formation can be accomplished by combining the signals communicated through antenna elements of an antenna array, so that signals that propagate in specific orientations in relation to an antenna array experience constructive interference, while others experience destructive interference. The adjustment of the signals communicated through the antenna elements can include a transmitting device or a receiving device that applies certain amplitudes and phase shifts to the signals transmitted through each of the antenna elements associated with the device. The adjustments associated with each of the antenna elements can be defined by a set of beamforming weights associated with a specific orientation (for example, in relation to the antenna array of the transmitting or receiving device, or in relation to some other guidance).
[00102] [00102] In one example, a base station 105 can use multiple antennas or antenna arrays to conduct beamforming operations for directional communication with a UE 115. For example, some signals (for example, synchronization signals, reference, beam selection signals or other control signals) may be transmitted by a base station 105 several times in different directions, which may include a signal being transmitted according to different sets of beamforming weights associated with directions different transmission lines. Transmissions in different beam directions can be used to identify (for example, base station 105 or a receiving device, such as a UE 115) a beam direction for subsequent transmission and / or reception by the base station
[00103] [00103] A receiving device (for example, a UE 115, which can be an example of a mmW receiving device) can test multiple reception beams when receiving various signals from base station 105, such as synchronization signals, signals of reference,
[00104] [00104] In some cases, the antennas of a 105 or UE 115 base station may be located within one or more antenna arrays, which can support MEVIO operations, or transmit or receive beam formation. For example, one or more base station antennas or antenna arrays can be placed in an antenna mount, such as an antenna tower. In some cases, the antennas or antenna arrays associated with a base station 105 may be located in several geographic locations. A base station 105 can have an antenna array with multiple rows and columns of antenna ports that base station 105 can use to support the formation of communication beams with a UE 115. Similarly, a UE 115 can have one or more antenna arrays that can support multiple MIMO operations or beam formation.
[00105] [00105] In some cases, the wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. At the user level, communication on the carrier or Packet Data Convergence Protocol (PDCP) layer can be based on IP. A Radio Link Control (RLC) layer can, in some cases, perform the segmentation and reassembly of packets for communication through logical channels. A Medium Access Control (MAC) layer can perform the priority handling and multiplexing of logical channels in transport channels. The MAC layer can also use 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 establishing, configuring and maintaining an RRC connection between a UE 115 and a base station 105 or core network 130 supporting radio carriers for data user plans. In the Physical Layer (PHY), transport channels can be mapped to physical channels.
[00106] [00106] In some cases, UEs 115 and base stations 105 may support data retransmissions to increase the likelihood of successful data reception. HARQ feedback is a technique of increasing 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)), correction direct error (FEC), and retransmission (eg, automatic retry request (ARQ)). HARQ can optimize productivity at the MAC layer under unsatisfactory radio conditions (for example, signal to noise conditions). In some cases, a wireless device can support HARQ feedback in the same slot, where the device can provide HARQ feedback in a specific slot for data received in an earlier symbol in the slot. In other cases, the device can provide HARQ feedback in a subsequent slot, or according to some other time interval.
[00107] [00107] The time intervals in LTE or NR can be expressed in multiples of a basic time unit that 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 radio frames, each having 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 be further divided into two slots, each lasting 0.5 ms, and each slot can contain 6 or 7 modulation symbol periods (for example, depending on the length of the pre-attached cyclic prefix to each period symbol). 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 communication system 100, and may be called a transmission time interval (TTI). In other cases, the smaller programming unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (for example, in bursts of reduced TTIs (sTTIs) or in selected component carriers using sTTIs).
[00108] [00108] In some wireless communication systems, a slot can be further divided into multiple mini-slots containing one or more symbols. In some cases, a mini-slot or mini-slot 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 communication systems may implement slot aggregation in which multiple slots or mini-slots are aggregated and used for communication between an UE 115 and a base station 105.
[00109] [00109] The term “bearer” refers to a set of radio frequency spectrum resources having a physical layer structure defined to support communication over a communication link 125. For example, a bearer of a communication link 125 can include a portion of a radio frequency spectrum band that is operated according to physical layer channels for a given radio access technology. Each physical layer channel can contain user data, control information, or other signaling. A carrier can be associated with a preset frequency channel (for example, an absolute radio frequency E-UTRA (EARFCN) channel number), and can be positioned according to a channel scan for discovery by 115 UEs. be downlink or uplink (for example, in an FDD mode), or configured to transmit downlink and uplink communication (for example, in a TDD mode). In some instances, the transmitted signal waveforms may consist of multiple subcarriers (for example, using multiple carrier modulation techniques (MCM) such as OFDM or DFT-s-OFDM).
[00110] [00110] The organizational structure of the carriers may be different for different radio access technologies (for example, LTE, LTE-A, NR, etc.). For example, communication via a carrier can be organized according to TTIs or slots, 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 carrier's operation. In some examples (for example, in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operations of other carriers.
[00111] [00111] 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 techniques of TDM- 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 common research space and one or more specific control regions or specific EU research spaces).
[00112] [00112] A carrier can be associated with a specific bandwidth of the radio frequency spectrum and, in some examples, the carrier bandwidth can be called a "system bandwidth" of the carrier or the communication system without thread
[00113] [00113] In a system that employs MCM techniques, a feature element can consist of a symbol period (for example, a modulation symbol duration) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits transmitted by each resource element may depend on the modulation scheme (for example, the order of the modulation scheme). Thus, the more resource elements that an UE 115 receives and the higher the order of the modulation scheme, the higher the data rate for the UE 115 can be. In MIMO systems, a wireless communication resource can refer to a combination of a radio frequency spectrum resource, a time resource and a spatial resource (for example, space layers), and the use of multiple space layers can further increase the data rate for communication with an UE 115.
[00114] [00114] Wireless communication system devices 100 (for example, base stations 105 or UEs 115) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication through one of a set of carrier bandwidths. In some examples, wireless communication system 100 may include base stations 105 and / or
[00115] [00115] The wireless communication system 100 can support communication with a UE 115 in multiple cells or carriers, a feature that can be called carrier aggregation (CA) or multiple carrier operation. A UE 115 can be configured with multiple downlink CCs and one or more CCs according to a carrier aggregation configuration. Carrier aggregation can be used with both FDD and TDD component carriers.
[00116] [00116] In some cases, the wireless communication system 100 may use advanced component carriers (eCCs). An eCC can be characterized by one or more features including wider carrier or channel bandwidth, 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 subideal or non-ideal backhaul link). An eCC can also be configured for use on unlicensed or shared spectrum (for example, where more than one operator is allowed to use the spectrum). An eCC characterized by broad carrier bandwidth can include one or more segments that can be used by UEs 115 that are not able to monitor all carrier bandwidth or are otherwise configured to use a bandwidth limited carrier (for example, to save energy).
[00117] [00117] 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 an UE 115 or base station 105, that uses eCCs can transmit broadband signals (for example, according to the frequency channel or carrier bandwidths of 20, 40, 60, 80 MHz, etc. .) in short symbol durations (for example, 16.67 microseconds). A TTI in an eCC can consist of one or multiple symbol periods. In some cases, the duration of TTI (that is, the number of symbols period in a TTI) can be variable.
[00118] [00118] Wireless communication systems as an R system can use any combination of licensed, shared and unlicensed spectrum bands, among others. The flexibility of eCC symbol duration and subcarrier spacing can allow the use of eCC across multiple spectra. In some instances, the shared spectrum NR can increase the use of spectrum and spectral efficiency, specifically through sharing of vertical (eg frequency of access) and horizontal (eg, time) resources.
[00119] [00119] The PDCCH transmits downlink control (DCI) information on control channel elements (CCE), which can consist of nine groups of logically contiguous resource elements (REGs), where each REG contains four resource elements (REs). DCIs include information regarding downlink (DL) programming assignments, uplink (UL) resource concessions, transmission scheme, uplink power control, HARQ information, modulation and encoding scheme (MCS) and other information. The size and format of DCI messages may differ depending on the type and amount of information that is transmitted by DCI. For example, if spatial multiplexing is supported, the DCI message size is large compared to contiguous frequency allocations. Similarly, for a system that employs MIMO, DCIs must include additional signaling information. The size and format of the DCI depends on the amount of information, as well as factors such as bandwidth, the number of antenna ports and duplex mode.
[00120] [00120] The PDCCH can transmit DCI messages associated with multiple users, and each UE 115 can decode DCI messages that are destined to it. For example, each UE 115 can be assigned a C-RNTI and CRC bits attached to each DCI can be shuffled based on the C-RNTI. To reduce power consumption and overload on user equipment, a limited set of control channel element (CCE) locations can be specified for DCIs associated with a specific UE 115. CCEs can be grouped (for example, in groups of 1, 2, 4 and 8 CCEs), and a set of CCE locations where the user equipment can find relevant DCIs can be specified. These CCEs can be known as a research space. The research space can be partitioned into two regions: a common CCE region or research space and an EU-specific (dedicated) CCE region or research space. The common CCE region is monitored by all UEs 115 served by a base station 105 and may include information such as paging information, system information, random access procedures and the like. The EU-specific search space can include user-specific tracking information. CCEs can be indexed, and the common search space can start from CCE 0, for example. The starting index for a specific EU research space may depend on the C-RNTI, the subframe index, the level of CCE aggregation and a random seed. A UE 115 can attempt to decode DCIs by performing a process known as blind decoding, during which search spaces are randomly decoded until DCIs are detected. During a blind decoding, the UE 115 can attempt to unscramble all potential DCI messages using its C-RNTI, and perform a CRC check to determine whether the attempt was successful.
[00121] [00121] Synchronization (for example, cell acquisition) can be performed using synchronization signals or channels transmitted by a network entity (for example, a 105 base station). In some cases, a base station 105 may transmit blocks of sync signals (SS) (which may be called bursts of SS) containing discovery reference signals. For example, SS blocks can include a primary sync signal (PSS), a secondary sync signal (SSS), a physical broadcast channel signal (PBCH), or other synchronization signals (for example, a tertiary synchronization (TSS)). In some examples, the signals included in an SS block can include a PSS, an SSS, a PBCH, and / or other synchronization signals that are multiplexed by time division. For example, the signals included in an SS block can include a first PBCH, SSS, second PBCH and PSS multiplexed by time division (transmitted in the order shown) or a first PBCH, SSS, PSS and second PBCH multiplexed by time division ( transmitted in the order shown), etc. In other examples, PBCH transmissions can be transmitted in a subset of SS block time resources (for example, in two symbols in an SS block) and the synchronization signals (for example, PSS and SSS) can be transmitted in another subset of SS blocks time resources. In addition, in deployments using mmW transmission frequencies, multiple SS blocks can be transmitted in different directions using beam scanning in an SS burst, and SS bursts can be periodically transmitted according to a set of SS bursts. In cases where a base station 105 can transmit omni-directionally, an SS block can be periodically transmitted according to a configured periodicity.
[00122] [00122] For example, a base station 105 can transmit multiple instances of an SS block, in different beams, during a periodic broadcast channel transmission time interval (BCH TTI). In other cases, a base station 105 can transmit multiple instances of an SS block in the same beam, or in an omnidirectional manner, during a periodic BCH TTI. A UE 115 attempting to access a wireless network can perform an initial cell search by detecting a PSS from a base station 105. The PSS may allow symbol timing synchronization and may indicate a physical layer identity value. PSS can be used to acquire timing and frequency as well as a physical layer identifier. The UE 115 can then receive an SSS. SSS can allow radio frame synchronization, and can provide a cell group identity value. The cell group identity value can be combined with the physical layer identifier to form the physical cell identifier (PCID), which identifies the cell. SSS can also allow the detection of a duplexing mode and a cyclic prefix length (CP). An SSS can be used to acquire other system information (for example, subframe index). The PBCH can be used to acquire additional system information needed for acquisition (for example, bandwidth, frame index, etc.). In some cases, the PBCH may transmit a master information block (MIB) and one or more system information blocks (SIBs) to a given cell.
[00123] [00123] Since a base station 105 may not know the locations of devices attempting to synchronize with a base station cell, SS blocks can be transmitted successively in a beam-scanned manner
[00124] [00124] In some cases, a UE 115 receiving an SS block can perform a cell measurement on the SS block, and can also acquire a network associated with a base station that has transmitted the SS block. To determine a beam on which the SS block is transmitted, or to determine a SS block timing within a sequence of SS blocks (and in some cases, to completely determine the SS block timing or a sync signal on it), a UE 115 may have to decode a PBCH within the SS block and obtain an SS block index from the SS block (for example, since the SS block index can transmit a beam index associated with the SS block and / or the location of the SS block within a sequence of SS blocks).
[00125] [00125] Thus, a base station 105 can know a set of transmission beams that must be used in communication with the UE 115. Consequently, the base station 105 can transmit, to a UE 115 that operates in a DRX mode , an activation signal indicating whether data is available to be transmitted to the UE 115. The activation signal can be transmitted using a first set of transmission beams according to a beam scan configuration. The UE 115 can receive the trigger signal and determine that data is available to be transmitted to the UE 115. Consequently, the UE 115 can respond by transmitting a response signal to base station 105. The response signal can indicate that the UE 115 received an indication from base station 105 on the trigger signal that data is available to be transmitted to UE 115, if applicable, and a beam progress report in some cases. The beam progress report can indicate the status of the transmission beams in the first set of transmission beams. The UE 115 and base stations 105 may, based on the response signal, perform a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE, if necessary.
[00126] [00126] Figure 2 illustrates an example of an activation configuration 200 that supports beam management for C-DRX with AGI according to various aspects of the present disclosure. In some examples, the activation configuration 200 can implement aspects of wireless communication system 100. The aspects of activation configuration 200 can be implemented by a UE and / or a base station, which can be examples of the corresponding devices described in this document. Broadly, the activation configuration 200 illustrates an example of periodic beam management procedures for C-DRX.
[00127] [00127] In general, an AGI can be used by an UE for energy saving techniques. The AGI may contain or otherwise transmit one or two bits (for example, a small payload) of information that indicates to the UE if a downlink lease is expected on the following PDCCH signal transmitted during the cycle's On Duration XRD. The downlink resource grant may be associated with the base station having data to transmit to the UE. AGI techniques can be implemented as an activation signal while the UE is operating in a C-DRX mode, for cross slot programming in PDCCH monitoring mode, and the like. The signaling format for the AGI may vary and may, in one example, include an AGI On-Off for activation when the base station transmits the AGI to signal “expected concession”, and transmit a batch transmission (DTX) for “concession unexpected ”. In another example, the AGI signaling format may include an On-Off for AGI in latency, where the base station broadcasts AGI to signal "unexpected grant", DTX for "expected grant". In yet another example, the AGI signaling format can include explicit AGI in which the base station always transmits the AGI that explicitly indicates one of the above states. The AGI can be EU specific or group specific.
[00128] [00128] In some aspects, an activation signal (for example, AGI) can be transmitted during an AGI opportunity, which can be a time shift before the UE transitions to the On Duration of the DRX cycle. The time shift can be configured by the network and, in some cases, can be a zero value, for example, On Duration can occur immediately after the AGI opportunity. Broadly, a C-DRX procedure that uses an AGI can include, at each AGI opportunity before On Duration, the UE can be activated with minimal functionality to receive and decode the AGI. If the AGI indicates that data is available to the UE or the UE has uplink traffic to transmit to the base station, the UE can transition to full functionality for the received On Duration to monitor the PDCCH signal from the base station . The PDCCH signal can indicate a resource lease that will be used for data communication. Otherwise, the UE can return to the latency state and skip the received On Duration.
[00129] [00129] In some aspects, a periodic beam update procedure can be performed for C-DRX with AGI. An opportunistic beam management procedure can include a separate AGI procedure (for example, a beam update procedure)
[00130] [00130] In some aspects, the AGI can be transmitted through N> = 1 beams. For example, to ensure the robustness of the AGI reception and to minimize the probability of beam failure. The value of N can be configured by the network based on a specific application scenario, channel statistics, tradeoff between energy consumption and latency requirements, and the like.
[00131] [00131] In some respects, the periodic AGI beam update can be performed using reference signals. For example, reference signals can be periodic, for example, CSI-RS or SS blocks. The configured period = K DRX cycles, with K depending on factors such as beam coherence time, traffic arrival statistics, and the like. In some respects, opportunistic AGI beam updates can be performed when AGI is transmitted with N> 1 beams. Beam management for regular PDCCH can be performed after an AGI transmission (eg, activation signal) indicating traffic.
[00132] [00132] In this way, a UE can be configured with a beam management period 205 that spans multiple DRX cycles (for example, K DRX cycles), for example, the entire K value can be selected depending on the beam coherence , and the like. A DRX cycle includes the UE transition between an On Duration 220 and the latency state 225. In the example of activation configuration 200, the K value is fourth, indicating that a periodic beam management procedure can be performed between the UE and the base station before each fourth instance of the UE that transitions to On Duration. The beam management procedure 210 is performed according to the beam management period 205 and is explained in more detail with reference to the activation configuration 300 of Figure 3.
[00133] [00133] Thus, at the beginning of the beam management period 205, the UE and the base station can carry out a beam management procedure 210. The beam management procedure 210 can be followed by an AGI opportunity in which , if data is available to the UE, the base station transmits an activation signal. If no data is available, the base station can refrain from transmitting the activation signal and the UE can skip the next On Duration and transition to the latency state.
[00134] [00134] Therefore, at the first opportunity of AGI 215, the base station does not transmit the activation signal due to the data that is available to the UE and, consequently, the UE can transition to a latency state during On Duration 220, for example, skipping On Duration. At the next AGI 230 opportunity, the base station can identify that data is available to transmit to the UE and, consequently, transmit the activation signal containing an AGI indication to the UE using a set of transmission beams. The UE can respond with a reply signal indicating that the UE has received the AGI indication for the data available to transmit to the UE. The UE can transition to a fully functional mode during the next On Duration and receive data 235 from the base station. At the next AGI 240 opportunity, the base station may determine that there is no data to transmit to the UE and, therefore, refrain from transmitting the activation signal to the UE. The UE can transition to the latency state during the next On Duration.
[00135] [00135] Before the next AGI 245 opportunity, the base station and the UE can perform another beam management procedure according to the periodic program, for example, the beam management period 205. Following the beam, the base station can determine that data is available to transmit to the UE and transmit the activation signal during the AGI 245 opportunity to transmit an AGI indication. The UE can respond with a reply signal to the base station confirming receipt of the AGI indication. Consequently, the UE can transition to a fully functional state during the next On Duration to receive the PDCCH signal indicating the resource grant and receive the data after On Duration. Data can be received using the resources indicated in the PDCCH signal resource grant. At the next AGI 250 opportunity, the base station may determine that there is no data to transmit to the UE and therefore refrain from transmitting the activation signal. The UE can then transition to the latency state during the next On Duration.
[00136] [00136] As discussed, the AGI indications during the AGI 230 and 245 opportunities can be transmitted using a set of transmission beams that are scanned beams to the UE. In some respects, the transmission beams used to transmit the activation signal may be thick transmission beams (for example, pseudo-omni transmission beams) or they may be thin transmission beams. In some aspects, the set of transmission beams used to transmit the activation signal may have a wider beam width than the beams used to transmit the PDCCH signal to the UE.
[00137] [00137] In some respects, the activation signal containing the AGI indication may include a narrow band tone, an EU-specific reference signal, a PDCCH signal, and the like. In some respects, the base station can configure the trigger signal to include a bit (or pair of bits) that is transmitted only when data is available to transmit to the UE.
[00138] [00138] In some respects, the response signal from the UE can be transmitted based on the AGI indication. For example, the UE can send the response signal to the base station to confirm that the UE has received the AGI indication indicating that the data is available to be transmitted to the UE. The UE may refrain from transmitting a response signal when data is not available to be transmitted to the UE. In some respects, the base station may not transmit the PDCCH signal during an On Duration if the response signal is not received from the UE. This can reduce the likelihood of a C-DRX state mismatch in the event that the UE does not receive the activation signal containing the AGI indication, for example, when the set of transmission beams used to transmit the activation signal is not more viable transmission beams.
[00139] [00139] Figure 3 illustrates an example of an activation configuration 300 that supports beam management for C-DRX with AGI according to various aspects of the present disclosure. In some examples, the activation configuration 300 may implement aspects of wireless communication system 100 and / or activation configuration 200. The aspects of activation configuration 300 may be implemented by a UE and / or a base station, which may be examples of the corresponding devices described in this document. Broadly, the activation configuration 300 illustrates an example of periodic beam management procedures for AGI using reference signals.
[00140] [00140] A UE can be configured with a beam management period 305 that spans multiple XRD cycles (eg K XRD cycles), for example, the entire K value can be selected depending on beam coherence, and the like . An XRD cycle includes the UE transition between an On Duration and the latency state. In the activation configuration example 300, the K value is fourth, indicating that a periodic beam management procedure can be performed between the UE and the base station before each fourth instance of the UE that transitions to On Duration. The beam management procedure 310 is programmed according to the beam management period 305.
[00141] [00141] On each occasion of periodic beam management (once per K XRD cycles), as the beam management procedure 310, the network can reserve resources to be used for a possible beam recovery procedure. During a 315 period (called 1DL), resources can include CSI-RS or periodic SS for N AGI transmission beams, with two transmission beams shown as an example. During a 320 period (called 2DL), resources can include CSI-RS or periodic SS to search for candidate beams. For example, the base station can scan the reference beams using a set of transmission beams that cover all or a subset of the base station's coverage area. In period 320, the reference beams are shown in dashed line to indicate that, in some cases, the base station can always transmit reference beams during 1DL and 2DL at each beam management occasion. During period 325 (called 3UL), the resource opportunity provides a programming request (SR) or transmission of random access channel (PRACH) from the UE for beam retrieval. During period 330 (called 4DL), the resource opportunity provides the base station response signal for the UE beam resource request.
[00142] [00142] In some respects, as is known during the beam management procedure 310, if at least one of the transmission beams in the reference signals is acceptable (for example, it has a performance metric at or above a threshold), periods 320, 325 and 330 may not be triggered. In some respects, from the base station perspective, periodic reference signals in period 320 can always be transmitted. However, from the UE perspective, the UE may not monitor the reference signals during period 320 if at least one of the transmission beams of period 310 are running at or above a performance threshold. Consequently, the set of transmission beams used during the 315 period can then be used in the next available AGI opportunity where the base station has data to transmit to the UE.
[00143] [00143] In the AGI 335 opportunity, the base station may not have data to transmit to the UE and, therefore, may refrain from transmitting an activation signal. Consequently, the UE can transition to a latency state and skip the next On Duration. At the AGI 340 opportunity, the base station can determine that it has data to carry over to the UE and, therefore, can transmit the activation signal to the UE using the set of transmission beams (for example, the same set of beams transmission confirmed as acceptable during beam management procedure 310). The UE can respond by transmitting a response signal to the base station confirming that the UE received the AGI indication on the activation signal. Consequently, at the next On Duration, the UE can transition to a fully functional state and receive the PDCCH signal containing the data resource grant.
[00144] [00144] At the next AGI opportunity, the base station can again determine that there is no data to transmit to the UE and therefore refrain from transmitting the activation signal. The UE can determine that no wake-up signal has been transmitted and therefore skip the following On Duration in the transition to the latency state.
[00145] [00145] During the next beam management opportunity (for example, beam management procedure 350), the base station can transmit a reference signal using the same transmission beams (for example, the same set of transmission beams used for the trigger signal transmitted during the AGI 340 opportunity) during the 355 (or 1DL) period. During the 360 (2DL) period, the base station can transmit periodic CSI-RS or SS for a search for candidate beams. For example, the base station can scan the reference beams using a set of transmission beams that cover all or a subset of the base station's coverage area. By monitoring the reference signals in the 355 period, the UE can determine that the quality of all transmission beams used by the reference signals in the 355 period are below a performance threshold and the UE can initiate the failure recovery procedure. beam and proceed to the 360 period to search for candidate beams. During the 365 (3UL) period, the resource opportunity provides an SR or PRACH transmission from the UE for beam recovery. The transmission of the UE may indicate a transmission beam from the set of transmission beams transmitted during the 360 period that satisfies a performance limit (for example, a beam index). The UE can use a wide beam configuration to transmit the response signal during the 365 period. During the 370 (4DL) period, the resource opportunity provides the base station response signal for the UE beam resource request. . The base station response signal can be transmitted using the new set of transmission beams (for example, a second set of transmission beams identified during the 360 period) that can be used for future transmissions of the activation signal to the UE.
[00146] [00146] At the next AGI 375 opportunity, the base station can determine that there is data to transmit to the UE and transmit the activation signal using the second set of transmission beams. The UE can respond with a response signal transmitted to the base station and transition to a fully functional mode during the next On Duration to receive the PDCCH signal. The UE can receive data transmitted from the base station using the resources indicated on the PDCCH signal.
[00147] [00147] Thus, on each occasion of periodic beam management, the UE can monitor N AGI reference beams in IDL and determine if a beam failure event occurs. In some respects, a beam failure condition may include a received reference signal strength (RSRP) of N reference beams that are below a performance threshold. If the beam failure event occurs, the UE can initiate the 2DL / 3UL / 4DL beam recovery procedure. In some respects, if at least one reference beam has an acceptable performance quality, the 2DL / 3UL / 4DL steps may not be triggered.
[00148] [00148] The number of beam management occasions can be determined by selecting the entire value of K DRX_cycles and can include N transmission beams in the transmission beam set. In some respects, a performance tradeoff for selecting the parameters of K DRX_cycles and N transmission beams can be done. For a higher K value and a lower N value, the energy consumption of the UE to monitor the reference and AGI signal beams (for example, activation signal transmission beams) is lower, but the probability of beam failure can be bigger. With a higher probability of beam failure, the data latency may be higher and the energy consumption of the UE may also increase due to the need to transmit the beam recovery signal. Once a beam failure event occurs, the UE needs to wait until the next periodic beam management occasion for the beam to recover, so the worst delay is K DRX_cycles. In some respects, the beam failure probability is dictated by the ratio of K DRX_cycles versus coherence time of the best transmission beam among the N AGI transmission beams.
[00149] [00149] Figure 4 illustrates an example of an activation configuration 400 that supports beam management for C-DRX with AGI according to various aspects of the present disclosure. In some examples, activation setting 400 may implement aspects of wireless communication system 100 and / or activation settings 200/300. The activation configuration aspects 400 can be implemented by a UE and / or a base station, which can be examples of the corresponding devices described in this document. Broadly, activation setting 400 illustrates an example of a response to confirm an AGI indication for traffic.
[00150] [00150] In some respects, there is always a non-zero probability for a beam failure event during an AGI transmission (for example, activation signal transmission). To prevent a C-DRX state mismatch, aspects of the present disclosure include the UE that responds to an AGI indication with a response signal when data is available to transmit to the UE. In a beam failure scenario where the UE loses AGI transmission due to beam failure, the base station may not receive the response signal from the UE and, based on the failure to receive a response, cannot program any PDCCH transmission to the next DRX On Duration. This can prevent the triggering of a radio link failure (RLF) due to the C-DRX state mismatch.
[00151] [00151] At the first opportunity of AGI 405, the base station can determine that there is data to be transmitted to the UE and therefore transmits the activation signal indicating that the data is available (for example, the AGI indication illustrated by the arrow down). The activation signal can be transmitted using the transmission beam array in a beam-scanning configuration. The transmission beams in the transmission beam set can be selected based on a previous beam management and / or beam update procedure between the base station and the UE (not shown). The UE can respond to the activation signal by transmitting a response signal indicating that the UE has received the AGI indication (illustrated by the up arrow). Based on the reception of the response signal, the base station can schedule the PDCCH signal transmission during the next On Duration that contains the resource lease for the next data transmission.
[00152] [00152] At the next AGI 410 opportunity, the base station may determine that there is no data to transmit to the UE and therefore does not transmit an activation signal. Upon detecting an activation signal transmission, the UE can transition to a latency state and skip the next On Duration.
[00153] [00153] At the next AGI 415 opportunity, the base station can determine that data is available to be transmitted to the UE. Consequently, the base station can transmit an activation signal to the UE with the indication of AGI and using the same set of transmission beams (for example, the currently active transmission beams). However, one or more transmission beams in the transmission beam set may have a performance metric below a threshold (for example, due to the movement of the
[00154] [00154] Based on the base station that detects the beam failure event (for example, not receiving the response signal from the UE), the base station can trigger a beam management procedure 420 with the UE. The beam management procedure 420 may include the base station that transmits a reference signal to the UE using the current transmission beam set (for example, in the 1DL). The base station can also transmit reference signals using another set of transmission beams that includes the current transmission beams and adds additional transmission beams (for example, in 2DL). The transmission beams in the 2DL step can span all or a subset of directions from the base station's coverage area. The UE can respond during the 3UL period with an indication of the best transmission beams of the transmission beams used in the 2DL period, for example, a beam index of the transmission beam that has the highest receiving power level, the lower interference, etc. Consequently, in the 4DL period, the base station can respond by transmitting the second set of transmission beams as the new transmission beams for future transmissions of the activation signal to the UE.
[00155] [00155] At the next AGI 425 opportunity, the base station can transmit the activation signal to the UE using the second set (eg, updated set) of transmission beams. The activation signal may contain the AGI indication and the UE may respond with a response signal confirming receipt of the AGI indication. Consequently, the base station can program and transmit the PDCCH signal during the next On Duration and data using the indicated resources. Thus, in this case, the recovery period (for example, traffic delay) can be limited to the next beam management opportunity.
[00156] [00156] In some respects, the AGI response (for example, the response signal) can be transmitted through pre-configured physical uplink control (PUCCH) channel resources. For example, if an AGI indication with N transmit beams, N symbols can also be used for the AGI response so that the base station can scan N receive beams. The costs associated with this technique may include the uplink feature reserved for each C-DRX cycle with little uplink traffic. Due to the analog beam restriction, these symbols may not be allocated to other users from different directions. In some respects, the AGI response (for example, the UE response signal) may include additional information such as an AGI beam progress report.
[00157] [00157] An AGI beam progress report can include a beam metric, such as RSRP, for the AGI transmission beams (for example, the set of transmission beams used to transmit the trigger signal). The base station can perform additional beam management based on the UE AGI beam progress report, for example, additional beam management for regular PDCCH or for the next AGI transmission. In some respects, the AGI beam progress report can always be included in the AGI response, for example, in each response signal received from the UE. The UE can only send an AGI response when there is traffic, so energy consumption can be minimal. In some respects, the AGI beam progress report is an event triggered based on a beam measurement, for example, one or more performance metrics used to transmit the trigger signal. For example, the network (for example, the RRC layer) can set up a beam progress report triggered by the UE event. Some possible trigger conditions may include when the AGI is successfully decoded via at least one transmission beam, but some other AGI transmission beams are of unacceptable quality.
[00158] [00158] Figure 5 illustrates an example of an activation configuration 500 that supports beam management for C-DRX with AGI according to various aspects of the present disclosure. In some examples, activation configuration 500 may implement aspects of wireless communication system 100 and / or activation settings 200/300/400. The activation configuration aspects 500 can be implemented by a UE and / or a base station, which can be examples of the corresponding devices described in this document. Broadly, the activation configuration 500 illustrates an example of opportunistic beam management for AGI.
[00159] [00159] In some respects, AGI techniques can benefit from opportunistic beam management for AGI. Opportunistic beam management may be applicable when the AGI indication is transmitted via N> 1 beams. If an AGI indication with traffic is detected, the UE can send the AGI beam progress report to the base station. If the quality of some transmission beams used to transmit the AGI indication (for example, activation signal) are below a performance threshold, the base station can trigger an aperiodic CSI-RS beam scan for the UE find candidate transmission beams to replace unsatisfactory AGI transmission beams. In some respects, the timely beam update procedure can only be triggered when the AGI indication with traffic is detected and some transmission beams are unsatisfactory. Opportunistic beam management can reduce the rate of total beam failure.
[00160] [00160] In the beam management procedure 505, the base station can transmit reference signal (s) to the UE using the current set of active transmission beams, for example, the most recently updated set of transmission beams. The current transmission beam set may be performing a performance threshold and therefore the 505 beam management procedure may result in the current transmission beams being maintained as the active transmission beam set. At the AGI 510 opportunity, the base station can determine that there is no data to transmit to the UE and,
[00161] [00161] At the AGI 515 opportunity, the base station can determine that there is data to be transmitted to the UE and therefore transmits the activation signal indicating that the data is available (for example, the AGI indication illustrated by the arrow for low). The activation signal can be transmitted using the transmission beam array in a beam-scanning configuration. The transmission beams in the transmission beam set can be selected based on the 505 beam management procedure. The UE can respond to the activation signal by transmitting a response signal indicating that the UE has received the AGI indication (illustrated by the arrow for up). Based on the reception of the response signal, the base station can schedule the PDCCH signal transmission during the next On Duration that contains the resource lease for the next data transmission.
[00162] [00162] At the AGI 520 opportunity, the base station can determine that there is data to be transmitted to the UE and therefore transmits the activation signal indicating that the data is available (for example, the AGI indication illustrated by the arrow for low). The activation signal can be transmitted using the transmission beam array in a beam-scanning configuration. The transmission beams in the transmission beam set can be selected based on the 505 beam management procedure. However, at least one of the transmission beams in the transmission beam set may be running below a performance threshold and this may trigger an opportunistic beam update procedure with the base station.
[00163] [00163] For example, the UE can transmit a response signal that includes a beam progress report. The beam progress report may contain or otherwise indicate that at least one of the transmission beams in the current transmission beam pool is running below a performance threshold. This can trigger the beam update procedure in which the base station transmits aperiodic reference signals (for example, CSI-RSs) in a beam scan configuration. The UE can monitor aperiodic reference signal transmissions to identify a candidate beam to replace the transmission beam that is running below the performance threshold. The UE can respond again (for example, with a second beam response / progress report signal) that identifies candidate beams for the base station. The response signal from the UE can also acknowledge receipt of the AGI indication (for example, which was received through the transmission beam that is running above the performance threshold). In this way, the base station can update the set of current active transmission beams based on the candidate beam (s) identified by the UE. The base station can use the updated broadcast beam set to program and transmit the PDCCH signal during the next On Duration.
[00164] [00164] At the next AGI 525 opportunity, the base station can again determine that there is data to be transmitted to the UE and therefore transmits the activation signal indicating that the data is available (for example, the AGI indication illustrated by down arrow). The trigger signal can be transmitted using the updated beam array in a beam scan configuration. The updated transmission beams in the transmission beam set can be selected based on the opportunistic beam update procedure during the AGI 520 opportunity. The UE can respond to the activation signal by transmitting a response signal indicating that the UE has received the indication AGI (illustrated by the up arrow). Based on the reception of the response signal, the base station can schedule the PDCCH signal transmission during the next On Duration that contains the resource lease for the next data transmission.
[00165] [00165] In some aspects, the techniques described may include beam management for signaling PDCCH after an indication of AGI with traffic. For example, additional beam management can be triggered for regular PDCCH upon receipt of AGI. Additional beam management can take different approaches depending on the implementation. In some respects, the set of transmission beams used to transmit the PDCCH signal may or may not be the same as the set of transmission beams used to transmit the AGI indication (e.g., activation signal). In one approach, a set of thick transmission beams can be used for the indication of AGI, while a set of thin transmission beams is used for the PDCCH signal. The base station can schedule aperiodic CSI-RS beam refinement transmissions for regular PDCCH signals after the AGI beam progress report is received from the UE. In another approach, a subset of higher AGI transmission beams can be used to transmit the regular PDCCH signal. The base station can select active transmission beams for the PDCCH signal based on the UE AGI beam progress report included in the AGI response signal.
[00166] [00166] Figure 6 illustrates an example of an activation configuration 600 that supports beam management for C-DRX with AGI according to various aspects of the present disclosure. In some examples, activation configuration 600 may implement aspects of wireless communication system 100 and / or activation settings 200/300/400/500. The activation configuration aspects 600 can be implemented by a UE and / or a base station, which can be examples of the corresponding devices described in this document. Broadly, activation configuration 600 illustrates an example of a case of uplink traffic for C-DRX with AGI.
[00167] [00167] Broadly, activation setting 600 is similar to aspects of 200/300/400/500 activation settings. However, in the uplink data situation, the UE may transmit an SR to carry or otherwise transmit the AGI indication during the AGI opportunity. For example, the UE may determine that it has data to transmit to the base station and transmit the SR at the AGI opportunity. This can be followed by additional beam management / updates for the regular PDCCH and / or SR reception.
[00168] [00168] In the beam management procedure 605, the base station and the UE can perform a beam management procedure using the transmission beams in the currently active transmission beam set. As long as the transmission beams are running at or above a performance threshold, the 605 beam management procedure can complete without changes to the transmission beams in the transmission beam pool.
[00169] [00169] At the AGI 610 opportunity, the base station can determine that there is no data to be transmitted to the UE and, therefore, abstains from transmitting the activation signal. Consequently, the UE can transition to a latency state and skip the next On Duration.
[00170] [00170] Sometime after the AGI 610 opportunity and before the next AGI 615 opportunity, the uplink data can reach the UE for transmission to the base station. Therefore, at the AGI 615 opportunity, the UE can transmit an SR using the transmission beams corresponding to the reference beams (for example, the same set of transmission beams being used by the base station). The SR may include the AGI indication informing the base station that the UE has uplink data to transmit. SR transmission is indicated by the up arrow. The base station can respond (indicated by the down arrow) with a reply signal confirming receipt of the AGI indication. Consequently, the base station can program and transmit a PDCCH signal during the following On Duration which includes a resource lease that will be used by the UE to transmit uplink data (for example, uplink physical channel resource lease (PUSCH)). The UE can use the indicated resources to transmit uplink data to the base station.
[00171] [00171] At the AGI 620 opportunity, the base station can determine that there is no data to be transmitted to the UE and therefore refrains from transmitting the activation signal. Consequently, the UE can transition to a latency state and skip the next On Duration.
[00172] [00172] Sometime after the AGI 620 opportunity and before the beam management procedure 625, the uplink data can reach the UE for transmission to the base station. However, at least one of the transmission beams in the set of active transmission beams may be running below a performance threshold. Consequently, a set of transmission beams can be identified during the 625 beam management procedure.
[00173] [00173] Therefore, in the AGI 630 opportunity, the UE can transmit an SR using the updated transmission beams corresponding to the reference beams (for example, the updated transmission beam set). The SR can include the AGI indication informing the base station that the UE has uplink data to transmit. SR transmission is indicated by the up arrow. The base station can respond (indicated by the down arrow) with a reply signal confirming receipt of the AGI indication. Consequently, the base station can program and transmit a PDCCH signal during the following On Duration that includes a resource lease that will be used by the UE to transmit the uplink data (for example, PUSCH resource lease). The UE can use the indicated resources to transmit the uplink data to the base station.
[00174] [00174] Figure 7 illustrates an example of an activation configuration 700 that supports beam management for C-DRX with AGI according to various aspects of the present disclosure. In some examples, activation configuration 700 may implement aspects of wireless communication system 100 and / or activation settings 200/300/400/500/600. The activation configuration aspects 700 can be implemented by a UE and / or a base station, which can be examples of the corresponding devices described in this document. Broadly, the activation configuration 700 illustrates an example of full scan beam management.
[00175] [00175] In some aspects, a beam management procedure is performed in each XRD cycle, for example, K = 1. For example, the beam management procedure 705 is performed before the AGI 710 opportunity (for example, an AGI opportunity with data available to transmit to the UE). Another beam management procedure 715 is performed before the AGI 720 opportunity (for example, an AGI opportunity with no data available to transmit to the UE). And another beam management procedure 725 is performed before the AGI 730 opportunity (for example, another AGI opportunity with no data available to transmit to the UE). In some respects, this technique can minimize the chance of a C-DRX state mismatch, but at the expense of increased energy consumption in the UE. The quality of AGI beam management can be monitored through periodic CSI-RS or SS transmissions.
[00176] [00176] In some respects, the AGI is transmitted through a total set of beams in all directions. This technique can be used when the total size of the transmission beam set is small and the XRD cycle is large. With a large XRD cycle and a small number of transmission beams, AGI transmission energy consumption can be minimal. In addition, since AGI is transmitted in each XRD cycle and in all directions, beam failure may not occur and AGI beam management is not required. Therefore, the network can avoid reserving periodic resources for AGI beam management. Additional beam management for regular PDCCH signal transmissions can still be used if thinner beams are used for PDCCH signal transmissions.
[00177] [00177] In some respects, the explicit AGI can be used with K = 1 DRX cycle periodicity. When monitoring the K = 1 periodic XRD cycle, some aspects may combine periodic beam management for AGI together with AGI transmissions using explicit AGI. The explicit AGI can contain a 1-bit traffic indication that is always transmitted to each DRX_Cycle. The UE can assess the beam quality of transmission beams from
[00178] [00178] Figure 8 shows a block diagram 800 of a wireless device 805 that supports beam management for C-DRX with AGI according to the aspects of the present disclosure. The wireless device 805 can be an example of aspects of a base station 105 as described in this document. The wireless device 805 can include the receiver 810, base station communication manager 815, and the transmitter 820. The wireless device 805 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[00179] [00179] The 810 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 beam management for C-DRX with AGI, etc.). The information can be passed on to other components of the device. Receiver 810 can be an example of aspects of transceiver 1135 described with reference to Figure 11. Receiver 810 can use a single antenna, or a set of antennas.
[00180] [00180] The base station communication manager 815 can be an example of aspects of the base station communication manager 1115 described with reference to Figure 11.
[00181] [00181] The base station communication manager UE 815 and / or at least some of its various subcomponents can be implemented in hardware, software executed by a processor, firmware, or any combination thereof.
[00182] [00182] The base station communication manager 815 can transmit, to a UE operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration, receive, from the UE and based on the activation signal, a response signal, and perform, based on the response signal, a beam update procedure for identify a second set of transmission beams for future transmissions of the activation signal to the UE. The base station communication manager 815 can also transmit, to an UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the transmitted activation signal using a set of transmission beams according to a beam scan configuration and receive, from the UE and based on the activation signal, a response signal indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[00183] [00183] The transmitter 820 can transmit signals generated by other components of the device. In some examples, transmitter 820 can be placed with a receiver 810 in a transceiver module. For example, transmitter 820 can be an example of aspects of transceiver 1135 described with reference to Figure 11. Transmitter 820 can use a single antenna, or a set of antennas.
[00184] [00184] Figure 9 shows a block diagram 900 of a wireless device 905 that supports beam management for C-DRX with AGI according to the aspects of the present disclosure. The wireless device 905 can be an example of aspects of a wireless device 805, or a base station 105 as described with reference to Figure
[00185] [00185] The 910 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 beam management for C-DRX with AGI, etc.). The information can be passed on to other components of the device. The receiver 910 can be an example of aspects of transceiver 1135 described with reference to Figure 11. The receiver 910 can use a single antenna, or a set of antennas.
[00186] [00186] The base station communication manager 915 can be an example of aspects of the base station communication manager 1115 described with reference to Figure 11.
[00187] [00187] The base station communication manager 915 can also include activation manager 925, response manager 930 and beam update manager 935.
[00188] [00188] Activation manager 925 can transmit, to an UE operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the activation signal transmitted using a first set of transmission beams according to a beam scan configuration and transmit, to an UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the activation signal transmitted using a set of transmission beams according to a beam scan configuration. In some cases, the transmission beams in the first and second sets of transmission beams include pseudo-omni transmission beams. In some cases, the activation signal includes a narrow band tone, or a UE-specific reference signal, or a PDCCH including a bit that indicates that the UE is about to wake up from a latency state, or a combination thereof.
[00189] [00189] The response manager 930 can receive, from the UE and based on the activation signal, a response signal and receive, from the UE and based on the activation signal, a response signal indicating that the UE has received the indication of that data is available to be transmitted to the UE. In some cases, the response signal includes a beam progress report. In some cases, the beam progress report is received from the UE in response to each transmission of the activation signal. In some cases, the beam progress report is received from the UE when at least one transmission beam in the transmission beam pool is below a performance threshold. In some cases, the beam progress report is transmitted to the UE when at least one transmission beam in the transmission beam pool is below a performance threshold.
[00190] [00190] The beam update manager 935 can perform, based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[00191] [00191] The 920 transmitter can transmit signals generated by other components of the device. In some examples, transmitter 920 can be placed with a receiver 910 in a transceiver module. For example, transmitter 920 can be an example of aspects of transceiver 1135 described with reference to Figure 11. Transmitter 920 can use a single antenna, or a set of antennas.
[00192] [00192] Figure 10 shows a block diagram 1000 of a base station communication manager 1015 that supports beam management for C-DRX with AGI according to the aspects of the present disclosure. The base station communication manager 1015 can be an example of aspects of a base station communication manager 815, a base station communication manager 915 or a base station communication manager 1115 described with reference to Figure 8, 9 and 11. The base station communication manager 1015 can include activation manager 1020, response manager 1025, beam update manager 1030, acknowledgment manager 1035, trigger manager 1040, data determination manager 1045 , aperiodic beam update manager 1050, periodic BM manager 1055 and data indication manager 1060. Each of these modules can communicate, directly or indirectly, with each other (for example, through one or more buses).
[00193] [00193] Activation manager 1020 can transmit, to an UE operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the activation signal transmitted using a first set of transmission beams according to a beam scan configuration and transmit, to an UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the activation signal transmitted using a set of transmission beams according to a beam scan configuration. In some cases, the transmission beams in the first and second sets of transmission beams include pseudo-omni transmission beams. In some cases, the activation signal includes a narrow band tone, or a UE-specific reference signal, or a PDCCH including a bit that indicates that the UE is about to wake up from a latency state, or a combination thereof.
[00194] [00194] The response manager 1025 can receive, from the UE and based on the activation signal, a response signal and receive, from the UE and based on the activation signal, a response signal indicating that the UE has received the indication of that data is available to be transmitted to the UE. In some cases, the response signal includes a beam progress report. In some cases, the beam progress report is received from the UE in response to each transmission of the activation signal. In some cases, the beam progress report is received from the UE when at least one transmission beam in the transmission beam pool is below a performance threshold. In some cases, the beam progress report is transmitted to the UE when at least one transmission beam in the transmission beam pool is below a performance threshold.
[00195] [00195] The beam update manager 1030 can perform, based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[00196] [00196] Confirmation manager 1035 can configure the activation signal to indicate that data is available to be transmitted to the UE and receive, based on the activation signal, the response signal indicating that the UE has received the indication that the data are available to be transmitted to the UE. In some cases, the response signal includes a beam progress report. In some cases, the beam progress report is received from the UE in response to each transmission of the activation signal. In some cases, the beam progress report is received from the UE in response to at least one transmit beam in the first set of transmit beams that is below the performance threshold.
[00197] [00197] The trigger manager 1040 can transmit a trigger message to the UE, in which the beam update procedure is based on the trigger message.
[00198] [00198] The data determination manager 1045 can identify that the data is available to be transmitted to the UE and configure the activation signal to indicate that the data is available to be transmitted to the UE, where the transmission of the activation signal occurs in response to the data that is available.
[00199] [00199] The aperiodic beam update manager 1050 can program the beam update procedure based on the response signal, the beam update procedure includes an aperiodic channel state information reference signal transmission (CSI) -LOL).
[00200] [00200] The periodic BM manager 1055 can perform an additional beam update procedure according to a periodic program, based on an integer number of XRD cycles, to identify a communication metric associated with communications with the UE, with others UEs or combinations thereof, select a value for the entire number of XRD cycles based on the communication metric, perform, based on at least the receipt of the response signal, a beam management procedure to identify a third set of beams of transmission to a PDCCH signal, the PDCCH signal indicating a grant of resources used to transmit the data to the UE, transmit the data to the UE using the indicated resources, receive, based on the PDCCH signal, an additional response signal indicating at least one transmission beam of the third set of transmission beams, perform, based on at least the reception of the response signal, a management procedure then beam to identify a second set of transmission beams for a PDCCH signal, the PDCCH signal indicating a grant of resources used to transmit the data to the UE, receive, based on the PDCCH signal, an additional response signal indicating at least one transmission beam from the second set of transmission beams, select, based on the indication, the at least one transmission beam to transmit the data to the UE, receive, based on the PDCCH signal, an additional response signal indicating a request for the beam management procedure and initiate the beam management procedure with the UE based on at least the response to the additional response signal.
[00201] [00201] The data indication manager 1060 can configure the activation signal to include a bit that is transmitted when data is available to be transmitted to the UE and configure the activation signal to refrain from transmitting the bit when there is no data available to be transmitted to the UE.
[00202] [00202] Figure 11 shows a diagram of a system 1100 that includes a device 1105 that supports beam management for C-DRX with AGI according to aspects of the present disclosure. Device 1105 can be an example or include wireless device components 805, wireless device 905, or a base station 105 as described above, for example, with reference to Figures 8 and 9. Device 1105 can include components for bidirectional voice and data communication including components for transmitting and receiving communication, including base station communication manager 1115, processor 1120, memory 1125, software 1130, transceiver 1135, antenna 1140, network communication manager 1145 and interstate communication manager 1150. These components can be in electronic communication through one or more buses (for example, bus 1110). Device 1105 can communicate wirelessly with one or more UEs 115.
[00203] [00203] The 1120 processor may include an intelligent hardware device, (for example, a general purpose processor, a DSP, a central processing unit (CPU), a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the 1120 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated into the 1120 processor. The 1120 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example, functions or tasks that support beam management for C- XRD with AGI).
[00204] [00204] The 1125 memory can include random access memory (RAM) and read memory (ROM). The 1125 memory can store computer-readable, computer-executable 1130 software, including instructions that, when executed, cause the processor to perform various functions described in this document. In some cases, the 1125 memory may contain, among other things, a basic input / output system (BIOS) that can control the basic operation of hardware or software such as interaction with peripheral components or devices.
[00205] [00205] Software 1130 may include code to implement aspects of the present disclosure, including code to support beam management for C-DRX with AGI. The 1130 software can be stored on a non-temporary computer-readable medium such as system memory or other memory. In some cases, the 1130 software may not be directly executable by the processor, but it can cause a computer (for example, when compiled and run) to perform the functions described in this document.
[00206] [00206] Transceiver 1135 can communicate in a bidirectional way, through one or more antennas, wired or wireless links, as described above. For example, the 1135 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 1135 transceiver may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission and to demodulate the packets received from the antennas.
[00207] [00207] In some cases, the wireless device may include a single 1140 antenna. However, in some cases, the device may have more than one 1140 antenna, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions.
[00208] [00208] The network communication manager 1145 can manage communication with the core network (for example, through one or more wired backhaul links). For example, the network communication manager 1145 can manage the transfer of data communication to client devices, such as one or more UEs 115.
[00209] [00209] The interstation 1150 communication manager can manage communication with another base station 105, and can include a controller or scheduler to control communication with UE 115 in cooperation with other base stations 105. For example, the communication manager Interstation 1150 communication can coordinate scheduling of transmissions to UEs 115 for various interference mitigation techniques, such as beam formation or joint transmission. In some examples, the interstation 1150 communication manager may provide an X2 interface within an LTE / LTE-A wireless network technology to provide communication between 105 base stations.
[00210] [00210] Figure 12 shows a block diagram 1200 of a wireless device 1205 that supports beam management for C-DRX with AGI according to the aspects of the present disclosure. The wireless device 1205 can be an example of aspects of an UE 115 as described in this document. The wireless device 1205 can include the receiver 1210, communication manager of the UE 1215 and the transmitter 1220. The wireless device 1205 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[00211] [00211] The 1210 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 beam management for C-DRX with AGI, etc.). The information can be passed on to other components of the device. The receiver 1210 can be an example of aspects of the transceiver 1535 described with reference to Figure 15. The receiver 1210 can use a single antenna, or a set of antennas.
[00212] [00212] The UE 1215 communication manager can be an example of aspects of UE 1515 communication manager described with reference to Figure 15.
[00213] [00213] The communication manager of UE 1215 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 UE 1215 communication manager and / or at least some of its various subcomponents can be performed by a general purpose processor, DSP, ASIC, FPGA or programmable logic device. , discrete gate or transistor logic, distinct hardware components, or any combination of them designed to perform the functions described in this disclosure. The communication manager of the UE 1215 and / or at least some of its various subcomponents can be physically located in various positions, including distributed so that portions of functions are implemented in different physical locations by one or more physical devices. In some instances, the UE 1215 communication manager 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 UE 1215 communication manager and / or at least some of its various subcomponents can be combined with one or more other hardware components, including, but not limited to, an I / O component, a transceiver, a server network, other 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.
[00214] [00214] The communication manager of UE 1215 can receive, from a base station and while operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, and the transmitted activation signal uses a first set of transmission beams according to a beam scan configuration, determine, based on the activation signal, that data is available to be transmitted to the UE, transmit, based on the determination, a response signal, and perform , based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE. The UE 1215 communication manager can also receive, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmission beams according to a beam scan configuration, to determine, based on on the activation signal, that the data is available to be transmitted to the UE, and to transmit a response signal to the base station indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[00215] [00215] The 1220 transmitter can transmit signals generated by other components of the device. In some examples, transmitter 1220 can be placed with a receiver 1210 in a transceiver module. For example,
[00216] [00216] Figure 13 shows a 1300 block diagram of a 1305 wireless device that supports beam management for C-DRX with AGI according to the aspects of the present disclosure. Wireless device 1305 can be an example of aspects of a wireless device 1205, or wireless device 700 or an UE 115 as described with reference to Figure 12. Wireless device 1305 can include receiver 1310, the communication manager of the UE 1315 and transmitter 1320. Wireless device 1305 may also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[00217] [00217] 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 beam management for C-DRX with AGI, etc.). The information can be passed on to other components of the device. The 1310 receiver can be an example of aspects of the transceiver 1535 described with reference to Figure 15. The 1310 receiver can use a single antenna, or a set of antennas.
[00218] [00218] The communication manager of UE 1315 can be an example of aspects of communication manager of UE 1515 described with reference to Figure 15.
[00219] [00219] The communication manager of UE 1315 can also include activation manager 1325, data determination manager 1330, response manager 1335 and beam update manager 1340.
[00220] [00220] The activation manager 1325 can receive, from a base station and while operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the activation signal transmitted using a first set of transmission beams according to a beam scan configuration and receive, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmission beams according to a beam scan configuration . In some cases, the transmission beams in the first and second sets of transmission beams include pseudo-omni transmission beams. In some cases, the activation signal includes a narrow band tone, or a UE-specific reference signal, or a PDCCH including a bit that indicates that the UE is about to wake up from a latency state, or a combination thereof.
[00221] [00221] The data determination manager 1330 can determine, based on the activation signal, that data is available to be transmitted to the UE and determine, based on the activation signal, that the data is available to be transmitted to the UE.
[00222] [00222] The response manager 1335 can transmit, based on the determination, a response signal and transmit a response signal to the base station indicating that the UE has received the indication that the data is available to be transmitted to the UE. In some cases,
[00223] [00223] The beam update manager 1340 can perform, based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[00224] [00224] The 1320 transmitter can transmit signals generated by other components of the device. In some examples, transmitter 1320 can be placed with a receiver 1310 in a transceiver module. For example, transmitter 1320 can be an example of aspects of transceiver 1535 described with reference to Figure 15. Transmitter 1320 can use a single antenna, or a set of antennas.
[00225] [00225] Figure 14 shows a block diagram 1400 of an UE 1415 communication manager that supports beam management for C-DRX with AGI according to the aspects of the present disclosure. The UE 1415 communication manager can be an example of aspects of an UE 1515 communication manager described with reference to Figures 12, 13 and 15. The UE 1415 communication manager can include the activation manager 1420, the communication manager data determination 1425, response manager 1430, beam update manager 1435, trigger manager 1440 and periodic BM manager 1445. Each of these modules can communicate, directly or indirectly, with each other (for example, through one or more buses).
[00226] [00226] The activation manager 1420 can receive, from a base station and while operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the activation signal transmitted using a first set of transmission beams according to a beam scan configuration and receive, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmission beams according to a beam scan configuration . In some cases, the transmission beams in the first and second sets of transmission beams include pseudo-omni transmission beams. In some cases, the activation signal includes a narrow band tone, or a UE-specific reference signal, or a PDCCH including a bit that indicates that the UE is about to wake up from a latency state, or a combination thereof.
[00227] [00227] The data determination manager 1425 can determine, based on the activation signal, that data is available to be transmitted to the UE and determine, based on the activation signal, that the data is available to be transmitted to the UE.
[00228] [00228] The response manager 1430 can transmit, based on the determination, a response signal and transmit a response signal to the base station indicating that the UE has received an indication that the data is available to be transmitted to the UE. In some cases, the response signal includes a beam progress report. In some cases, the beam progress report is transmitted to the base station in response to each activation signal transmission. In some cases, the beam progress report is transmitted to the base station in response to at least one transmit beam in the first set of transmit beams that is below the performance threshold. In some cases, the response signal includes a beam progress report. In some cases, the beam progress report is transmitted to the base station in response to each activation signal received.
[00229] [00229] The beam update manager 1435 can perform, based on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[00230] [00230] The trigger manager 1440 can receive a trigger message from the base station, in which the beam update procedure is based on the trigger message.
[00231] [00231] The periodic BM manager 1445 can perform, based on at least the reception of the response signal, a beam management procedure to identify a third set of transmission beams for a PDCCH signal, the PDCCH signal indicating a granting of resources used to transmit the data to the UE, transmit, based on the PDCCH signal, an additional response signal indicating at least one transmission beam from the third set of transmission beams, in which data is received from the base station with based on at least one transmission beam, perform, based on at least the reception of the response signal, a beam management procedure to identify a second set of transmission beams for a PDCCH signal, the PDCCH signal indicating a concession of resources used to transmit data to the UE, receive data from the base station using the indicated resources, transmit, based on the PDCCH signal, an additional response signal onal indicating at least one transmit beam from the second set of transmit beams, receive, based on the indication, the data transmitted using at least one transmit beam, transmit, based on the PDCCH signal, an additional response signal indicating an request for the beam management procedure, and initiate the beam management procedure with the base station based on at least the response to the additional response signal.
[00232] [00232] Figure 15 shows a diagram of a 1500 system that includes a 1505 device that supports beam management for C-DRX with AGI according to aspects of the present disclosure. Device 1505 can be an example or include components of UE 115 as described above, for example, with reference to Figure 1. Device 1505 can include components for voice communication and bidirectional data including components for transmitting and receiving communication, including manager communication system of UE 1515, processor 1520, memory 1525, software 1530, transceiver 1535, antenna 1540, and I / O controller 1545. These components can be in electronic communication through one or more buses (for example, bus 1510). Device 1505 can communicate wirelessly with one or more base stations 105.
[00233] [00233] The 1520 processor may include an intelligent hardware device, (for example, a general purpose processor, a PSD, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete port or logic component transistor, a discrete hardware component, or any combination thereof). In some cases, the 1520 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated into the processor
[00234] [00234] Memory 1525 can include RAM and ROM. Memory 1525 can store computer-readable, computer-executable software 1530, including instructions that, when executed, cause the processor to perform various functions described in this document. In some cases, the 1525 memory may contain, among other things, a BIOS that can control the basic operation of hardware or software such as interaction with peripheral components or devices.
[00235] [00235] The 1530 software may include code to implement aspects of the present disclosure, including code to support beam management for C-DRX with AGI. The 1530 software can be stored on a non-temporary computer-readable medium such as system memory or other memory. In some cases, the 1530 software may not be directly executable by the processor, but it can cause a computer (for example, when compiled and run) to perform the functions described in this document.
[00236] [00236] The 1535 transceiver can communicate in a bidirectional manner, through one or more antennas, wired or wireless links, as described above. For example, the 1535 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 1535 transceiver may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission and to demodulate the packets received from the antennas.
[00237] [00237] In some cases, the wireless device may include a single 1540 antenna. However, in some cases, the device may have more than one 1540 antenna, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions.
[00238] [00238] The I / O controller 1545 can manage the input and output signals of the 1505 device. The I / O controller 1545 can also manage peripherals not integrated in the 1505 device. In some cases, the I / O controller 1545 can represent a physical connection or port to an external device. In some cases, the 1545 I / O controller may use an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. In other cases, the 1545 I / O controller can represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, the 1545 I / O controller can be implemented as part of a processor. In some cases, a user can interact with the 1505 device through an I / O controller 1545 or through hardware components controlled by the I / O controller 1545.
[00239] [00239] Figure 16 shows a flowchart that illustrates a 1600 beam management method for C-DRX with AGI according to aspects of the present disclosure. The 1600 method operations can be implemented by a base station 105 or its components as described in this document. For example, method 1600 operations can be performed by a base station communication manager as described with reference to Figures 8 to 11. In some examples, a base station 105 can execute a set of codes to control the functional elements device to perform the functions described below. In addition or alternatively, base station 105 can perform aspects of the functions described below using special purpose hardware.
[00240] [00240] In block 1605, base station 105 can transmit, to an UE operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration. Block 1605 operations can be performed according to the methods described in this document. In certain examples, aspects of operations in block 1605 can be performed by an activation manager as described with reference to Figures 8 to 11.
[00241] [00241] In block 1610, base station 105 can receive, from the UE and based at least in part on the activation signal, a response signal. Block 1610 operations can be performed according to the methods described in this document. In certain examples, aspects of operations in block 1610 can be performed by a response manager as described with reference to Figures 8 to 11.
[00242] [00242] In block 1615, base station 105 can perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE . Block 1615 operations can be performed according to the methods described in this document. In certain examples, the operations aspects of block 1615 can be performed by a bundle update manager as described with reference to Figures 8 to 11.
[00243] [00243] Figure 17 shows a flow chart illustrating a 1700 beam management method for C-DRX with AGI according to aspects of the present disclosure. The 1700 method operations can be implemented by a base station 105 or its components as described in this document. For example, method 1700 operations can be performed by a base station communication manager as described with reference to Figures 8 to 11. In some examples, a base station 105 can execute a set of codes to control the functional elements device to perform the functions described below. In addition or alternatively, base station 105 can perform aspects of the functions described below using special purpose hardware.
[00244] [00244] In block 1705, base station 105 can identify that data is available for transmission to the UE. Block 1705 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1705 block operations can be performed by a data determination manager as described with reference to Figures 8 to 11.
[00245] [00245] In block 1710, base station 105 can configure the activation signal to indicate that data is available to be transmitted to the UE, where transmission of the activation signal occurs in response to the data that is available. Block 1710 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1710 block operations can be performed by a data determination manager as described with reference to Figures 8 to 11.
[00246] [00246] In block 1715, base station 105 can transmit, to an UE operating in a DRX mode, an activation signal indicating whether data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration. Block 1715 operations can be performed according to the methods described in this document. In certain examples, aspects of the operations of block 1715 can be performed by an activation manager as described with reference to Figures 8 to 11.
[00247] [00247] In block 1720, base station 105 can receive, from the UE and based at least in part on the activation signal, a response signal. Block 1720 operations can be carried out according to the methods described in this document. In certain examples, aspects of the 1720 block operations can be performed by a response manager as described with reference to Figures 8 to 11.
[00248] [00248] In block 1725, base station 105 can perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE . Block 1725 operations can be carried out according to the methods described in this document. In certain examples, aspects of the 1725 block operations can be performed by a beam update manager as described with reference to Figures 8 to 11.
[00249] [00249] Figure 18 shows a flow chart illustrating a 1800 method of beam management for C-DRX with AGI according to aspects of the present disclosure. 1800 method operations can be implemented by a UE 115 or its components as described in this document. For example, method 1800 operations can be performed by an UE communication manager as described with reference to Figures 12 to 15. In some examples, an UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[00250] [00250] In block 1805, the UE 115 can receive, from a base station and while operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, and the transmitted activation signal uses a first set of transmission beams according to a beam scan configuration. Block 1805 operations can be performed according to the methods described in this document. In certain examples, the operations aspects of block 1805 can be performed by an activation manager as described with reference to Figures 12 to 15.
[00251] [00251] In block 1810, UE 115 can determine, based at least in part on the activation signal, that data is available to be transmitted to the UE. Block 1810 operations can be performed according to the methods described in this document. In certain examples, the operations aspects of block 1810 can be performed by a data determination manager as described with reference to Figures 12 to 15.
[00252] [00252] In block 1815, UE 115 can transmit, based at least in part on the determination, a response signal. Block 1815 operations can be performed according to the methods described in this document. In certain examples, the operations aspects of block 1815 can be performed by a response manager as described with reference to Figures 12 to 15.
[00253] [00253] In block 1820, the UE 115 can perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE. Block 1820 operations can be carried out according to the methods described in this document. In certain examples, the operations aspects of the 1820 block can be performed by a beam update manager as described with reference to Figures 12 to 15.
[00254] [00254] Figure 19 shows a flow chart illustrating a 1900 beam management method for C-DRX with AGI according to aspects of the present disclosure.
[00255] [00255] In block 1905, the UE 115 can receive, from a base station and while operating in a DRX mode, an activation signal indicating whether the data is available to be transmitted to the UE, the transmitted activation signal using a first set of transmission beams according to a beam scan configuration. The operations of the 1905 block can be carried out according to the methods described in this document. In certain examples, aspects of the 1905 block's operations can be performed by an activation manager as described with reference to Figures 12 to 15.
[00256] [00256] In block 1910, UE 115 can determine, based at least in part on the activation signal, that data is available to be transmitted to the UE. Block 1910 operations can be carried out according to the methods described in this document. In certain examples, aspects of operations in block 1910 can be performed by a data determination manager as described with reference to
[00257] [00257] In block 1915, UE 115 can transmit, based at least in part on the determination, a response signal. Block 1915 operations can be carried out according to the methods described in this document. In certain examples, aspects of the operations of block 1915 can be performed by a response manager as described with reference to Figures 12 to 15.
[00258] [00258] In block 1920, the UE 115 can perform, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE. Block 1920 operations can be carried out according to the methods described in this document. In certain examples, aspects of the 1920 block operations can be performed by a beam update manager as described with reference to Figures 12 to 15.
[00259] [00259] In block 1925, the UE 115 can perform, based on at least the reception of the response signal, a beam management procedure to identify a third set of transmission beams for a PDCCH signal, the PDCCH signal indicating a concession resources used to transmit data to the UE. Block 1925 operations can be carried out according to the methods described in this document. In certain examples, aspects of the operations of block 1925 can be performed by a periodic RM manager as described with reference to Figures 12 to 15.
[00260] [00260] In block 1930, the UE 115 can receive data from the base station using the indicated resources. The operations of the 1930 block can be carried out according to the methods described in this document. In certain examples, the operations aspects of the 1930 block can be performed by a periodic RM manager as described with reference to Figures 12 to 15.
[00261] [00261] Figure 20 shows a flow chart illustrating a 2000 beam management method for C-DRX with AGI according to aspects of the present disclosure. Method 2000 operations can be implemented by a 105 base station or its components as described in this document. For example, method 2000 operations can be performed by a base station communication manager as described with reference to Figures 8 to 11. In some examples, a base station 105 can execute a set of codes to control the functional elements device to perform the functions described below. In addition or alternatively, base station 105 can perform aspects of the functions described below using special purpose hardware.
[00262] [00262] In block 2005, base station 105 can transmit, to an UE operating in a DRX mode, an activation signal indicating that data is available to be transmitted to the UE, the transmitted activation signal using a transmission beam set according to a beam scan configuration. The 2005 block operations can be carried out according to the methods described in this document. In certain examples, the operations aspects of the 2005 block can be performed by an activation manager as described with reference to Figures 8 to 11.
[00263] [00263] In block 2010, base station 105 can receive, from the UE and, based at least in part on the activation signal, a response signal indicating that the UE has received the indication that the data is available to be transmitted to the HUH. The 2010 block operations can be carried out according to the methods described in this document. In certain examples, aspects of the 2010 block's operations can be performed by a response manager as described with reference to Figures 8 to 11.
[00264] [00264] Figure 21 shows a flow chart illustrating a 2100 beam management method for C-DRX with AGI according to aspects of the present disclosure. The 2100 method operations can be implemented by a UE 115 or its components as described in this document. For example, method 2100 operations can be performed by an UE communication manager as described with reference to Figures 12 to 15. In some examples, an UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[00265] [00265] In block 2105, the UE 115 can receive, from a base station and while operating in a DRX mode, an activation signal transmitted using a set of transmission beams according to a beam scan configuration. Block 2105 operations can be carried out according to the methods described in this document. In certain examples, aspects of block 2105 operations can be performed by an activation manager as described with reference to Figures 12 to
[00266] [00266] In block 2110, UE 115 can determine, based at least in part on the activation signal, that data is available to be transmitted to the UE. Block 2110 operations can be performed according to the methods described in this document. In certain examples, the operations aspects of block 2110 can be performed by a data determination manager as described with reference to Figures 12 to 15.
[00267] [00267] In block 2115, the UE 115 can transmit a response signal to the base station indicating that the UE has received an indication that the data is available to be transmitted to the UE. Block 2115 operations can be carried out according to the methods described in this document. In certain examples, the operations aspects of block 2115 can be performed by a response manager as described with reference to Figures 12 to 15.
[00268] [00268] It should be noted that the methods described above describe the possible implementations, and that the operations and steps can be rearranged or otherwise modified and that other implementations are possible. In addition, the aspects of two or more methods can be combined.
[00269] [00269] 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), single carrier frequency division multiple access (SC-FDMA) and other systems. A CDMA system can implement radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. Versions of IS-2000 can be commonly called CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly called CDMA2000 1xEV-DO, High Speed Packet Data (HRPD), etc. UTRA includes Broadband CDMA (WCDMA) and other CDMA variants. A TDMA system can implement radio technology like the Global System for Mobile Communication (GSM).
[00270] [00270] An OFDMA system can implement radio technology such as Mobile Ultra Wide Band (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 the documents of the organization called 3rd Generation Partnership Project ”(3GPP). CDMA2000 and UMB are described in the documents of an organization called “3rd Generation Partnership Project 2” (3GPP2). The techniques described in this document 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 purposes, and LTE or NR terminology can be used in much of the description, the techniques described in this document are applicable in addition to LTE or NR applications.
[00271] [00271] A macro-cell generally 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 base station of lower power 105, compared to a macro cell, and a small cell can operate in the same frequency bands or in different frequency bands (for example, licensed, unlicensed, etc. .) as macro cells. Small cells can include pico cells, femto cells and micro cells according to several examples. A peak cell, for example, can cover a small geographical 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 residence) and can provide access restricted by UEs 115 having an association with the femto cell (for example, UEs 115 in a closed subscriber group (CSG), UEs 115 for home users, and the like). An eNB for a macro cell can be called an eNB macro. A small cell eNB can be called a small cell eNB, a peak eNB, a femto eNB, or a residential eNB. An eNB can support one or multiple cells (for example, two, three, four,
[00272] [00272] The wireless communication system or systems 100 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 timings and transmissions from different base stations 105 may not be approximately time aligned. The techniques described in this document can be used for synchronous or asynchronous operation.
[00273] [00273] The information and signals described in this document can be represented using any one of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and integrated circuits that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, particles or magnetic fields, particles or optical fields or any combination of them.
[00274] [00274] The various blocks and illustrative modules described together with the disclosure in this document can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an integrated circuit for specific application (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate logic or transistor, discrete hardware components or any combination of them designed to perform the functions described in this document. 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, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
[00275] [00275] 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 attached disclosure and 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 these. Features that implement functions can also be physically located in various positions, including being distributed so that portions of functions are implemented in different physical locations.
[00276] [00276] The non-temporary computer-readable medium includes both computer storage media and communication media that include any medium that facilitates the transfer of a computer program from one location to another.
[00277] [00277] As used in this document, including in claims, “or”, as used in a list of items (for example, a list of items preceded by a phrase such as “at least one or one or more of”) indicates a inclusive list so 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). Also, as used in this document, the phrase “based on” should not be interpreted as referring to a closed set of conditions. For example, an example step that is described as “based on condition A” can be based on either condition A or condition B without departing from the scope of the present disclosure. In other words, as used herein, the term “based on” should be interpreted in the same way as the term “based at least in part on”.
[00278] [00278] In the attached figures, components or similar resources may have the same reference mark. In addition, several components of the same type can be distinguished by following the reference label by a dash and a second label that distinguishes between similar components. If only the first reference label is used in the specification, the description is applicable to any of the similar components having the same first reference label, regardless of the second reference label, or another subsequent reference label.
[00279] [00279] The description presented in this document, together with the attached drawings, describes examples of configurations and does not represent all examples that can be implemented or that are within the scope of the claims. The term "exemplifier" used in this document means "serves as an example, instance or illustration" and not "preferred" or "advantageous over other examples". The detailed description includes specific details for the purpose of providing an understanding of the techniques described. These techniques, however, can be practiced without these specific details. In some cases, well-known structures and devices are shown in the form of a block diagram in order to avoid obscuring such concepts from the examples described.
[00280] [00280] The description in this document is provided to allow one skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art and the generic principles defined in this document can be applied to other variations without departing from the scope of the disclosure. Accordingly, the disclosure is not intended to be limited to the examples and projects described in this document, but should be in accordance with the broader scope, consistent with the innovative principles and characteristics disclosed in this document.

权利要求:
Claims (30)
[1]
1. Wireless communication method, which comprises: transmitting an activation signal to a user equipment (UE) operating in a discontinuous reception mode (DRX) indicating whether the data is available to be transmitted to the UE, being that the transmitted activation signal uses a first set of transmission beams according to a beam-scanning configuration; receive, from the UE and based at least in part on the activation signal, a response signal; and performing, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[2]
2. Method according to claim 1, which further comprises: configuring the activation signal to indicate that the data is available to be transmitted to the UE; and receiving, based at least in part on the activation signal, the response signal indicating that the UE has received the indication that the data is available to be transmitted to the UE.
[3]
A method according to claim 2, wherein: the response signal comprises a beam progress report.
[4]
4. Method according to claim 3, in which: the beam progress report is received from the
UE in response to each activation signal transmission.
[5]
5. Method according to claim 3, wherein: the beam progress report is received from the UE in response to at least one transmit beam in the first set of transmit beams which is below the performance limit.
[6]
A method according to claim 1, which further comprises: transmitting a trigger message to the UE, in which the beam update procedure is based at least in part on the trigger message.
[7]
A method according to claim 1, which further comprises: identifying that data is available to transmit to the UE; and configuring the trigger signal to indicate that data is available to be transmitted to the UE, where transmission of the trigger signal occurs in response to the data that is available.
[8]
8. Method according to claim 1, which further comprises: programming the beam update procedure based at least in part on the response signal, the beam update procedure comprising an aperiodic reference signal transmission of channel status information (CSI-RS).
[9]
9. Method according to claim 1, which further comprises: performing an additional beam update procedure according to a periodic program, based at least in part on an entire number of DRX cycles.
[10]
10. Method according to claim 9, wherein: the additional beam update procedure is performed before transmission of the activation signal within a DRX cycle.
[11]
A method according to claim 9, wherein: the additional beam update procedure comprises the transmission of a periodic channel status information reference signal (CSI-RS), a periodic synchronization signal, or combinations of the same.
[12]
12. Method according to claim 9, which further comprises: identifying a communication metric associated with communication with the UE, with other UEs, or combinations thereof; and select a value for the entire number of DRX cycles based at least in part on the communication metric.
[13]
13. Method according to claim 1, which further comprises: performing, based on at least the reception of the response signal, a beam management procedure to identify a third set of transmission beams for a control channel signal physical downlink (PDCCH), with the PDCCH signal indicating a concession of resources used to transmit the data to the UE; and transmit the data to the UE using the indicated resources.
[14]
A method according to claim 13, which further comprises: receiving, based at least in part on the PDCCH signal, an additional response signal indicating at least one transmission beam from the third set of transmission beams; and selecting, at least in part from the indication, the at least one transmission beam to transmit the data to the UE.
[15]
A method according to claim 13, wherein: the third set of transmission beams comprises a subset of the first or second set of transmission beams.
[16]
A method according to claim 13, wherein: the third set of transmission beams comprises a beam width narrower than a beam width of the first or second sets of transmission beams.
[17]
17. The method of claim 1, wherein: the transmission beams in the first and second sets of transmission beams comprise pseudo-omni transmission beams.
[18]
18. The method of claim 1, wherein: the activation signal comprises a narrowband tone, or a UE-specific reference signal, or a physical downlink control channel (PDCCH) including a bit that indicates that the UE is about to awaken from a state of latency, or a combination thereof.
[19]
19. The method of claim 1, which further comprises: setting the activation signal to include a bit that is transmitted when data is available to be transmitted to the UE; and configuring the activation signal to refrain from transmitting the bit when there is no data available to be transmitted to the UE.
[20]
20. Wireless communication method, which comprises: receiving, from a base station and while operating in a batch reception mode (DRX), an activation signal indicating whether the data is available to be transmitted to the UE, the transmitted activation signal uses a first set of transmission beams according to a beam-scanning configuration; determine, based at least in part on the activation signal, that data is available to be transmitted to the UE; transmit, based at least in part on the determination, a response signal; and performing, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[21]
21. The method of claim 20, wherein:
the response signal comprises a beam progress report.
[22]
22. The method of claim 21, wherein: the beam progress report is transmitted to the base station in response to each transmission of the activation signal.
[23]
23. The method of claim 21, wherein: the beam progress report is transmitted to the base station in response to at least one transmission beam in the first set of transmission beams that is below the performance limit.
[24]
24. The method of claim 20, further comprising: receiving a triggering message from the base station, wherein the beam update procedure is based at least in part on the triggering message.
[25]
25. The method of claim 20, further comprising: performing, based on at least the reception of the response signal, a beam management procedure to identify a third set of transmission beams for a control channel signal physical downlink (PDCCH), the PDCCH signal indicating a grant of resources used to transmit the data to the UE; and receive data from the base station using the indicated resources.
[26]
26. The method of claim 25, further comprising: transmitting, based at least in part on the PDCCH signal, an additional response signal indicating at least one transmission beam from the third set of transmission beams, wherein data is received from the base station based at least in part on at least one transmission beam.
[27]
27. The method of claim 20, wherein: the transmission beams in the first and second sets of transmission beams comprise pseudo-omni transmission beams.
[28]
28. The method of claim 20, wherein: the activation signal comprises a narrowband tone, or a UE-specific reference signal, or a physical downlink control (PDCCH) channel including a bit that indicates that the UE is about to awaken from a state of latency, or a combination thereof.
[29]
29. Wireless communication apparatus, comprising: means for transmitting, to a user equipment (UE) operating in a discontinuous reception mode (DRX), an activation signal indicating whether data is available to be transmitted to the UE , the transmitted activation signal using a first set of transmission beams according to a beam-scanning configuration; means for receiving, from the UE and based at least in part on the activation signal, a response signal; and means for performing, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.
[30]
30. Wireless communication device, which comprises: means for receiving, from a base station and while operating in a batch reception mode (DRX), an activation signal indicating whether the data is available to be transmitted to the UE, being that the transmitted activation signal uses a first set of transmission beams according to a beam-scanning configuration; means for determining, based at least in part on the activation signal, that data is available to be transmitted to the UE; means for transmitting, based at least in part on the determination, a response signal; and means for performing, based at least in part on the response signal, a beam update procedure to identify a second set of transmission beams for future transmissions of the activation signal to the UE.

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法律状态:
2021-11-23| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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US16/104,656|US10548182B2|2017-08-21|2018-08-17|Beam management for connected discontinuous reception with advanced grant indicator|

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PCT/US2018/047087|WO2019040369A1|2017-08-21|2018-08-20|Beam management for connected discontinuous reception with advanced grant indicator|

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