method of sending uplink information, method of receiving uplink information, terminal device, base

专利摘要:
Embodiments of the present invention disclose an uplink information processing method and an apparatus. the method includes: receiving, by a terminal device, the first control information sent by a base station device in a first downlink transmission time slot; determining, by the terminal device, a time domain resource based on the first control information, wherein the time domain resource includes at least one uplink transmission time slot, that the resource start time unit time domain after the first downlink transmission time slot and the start time unit is a first uplink transmission time slot of at least one uplink transmission time slot; and sending by the terminal device data information on an uplink data channel, wherein the uplink data channel corresponds to at least one uplink transmission time slot in the time domain resource. In embodiments of the present invention, the use of time domain resources can be improved, and the efficiency of uplink information processing can be improved.
公开号:BR112019011530A2
申请号:R112019011530-7
申请日:2017-12-07
公开日:2019-11-05
发明作者:Guan Lei；Li Yuan
申请人:Huawei Tech Co Ltd；
IPC主号:

专利说明:

METHOD OF SUBMITTING LINK INFORMATION, METHOD OF RECEIVING ASCENT LINK INFORMATION, TERMINAL DEVICE, BASE STATION DEVICE AND ASCENT FIELD LINK PROCESSING SYSTEM TECHNICAL FIELD [001] The present invention relates to the field of this invention concerns the field of this invention. communications technologies, and in particular to a method of processing information of rising link and an apparatus.
BACKGROUND [002] An orthogonal frequency division multiplexing technology (English: Orthogonal Frequency Division Multiplexing, OFDM) is used in a Long Term Evolution system (English: Long Term Evolution, LTE). In the LTE system, an uphill link resource is allocated in a granularity of a transmission time interval (Transmission Time Interval, TTI). A length of a TTI is 14 OFDM symbols, that is, a subframe, and a length of a TTI is 1 ms. In LTE system uphill link transmission, a base station instructs, when using an uphill link concession (English: UL grant) included in a downlink link channel, user equipment (English: User Equipment, UE ) to send data information on a shared uphill link channel (English: Physical Uplink Shared Channel, PUSCH) in a corresponding uphill link subframe. There is a fixed time sequence relationship between a UL grant and a scaled PUSCH when using the UL grant. A scaled PUSCH when using a UL concession included in a downlink control channel in a nth subframe (denoted as
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2/111 subframe #n) is in an order subframe (n + 4) (denoted as subframe # n + 4). A resource in the frequency domain occupied by the scaled PUSCH is indicated by means of resource allocation information (English: Resource Allocation, RA) loaded in the UL concession.
[003] Conventionally, each LUS PUSCH can be scaled only when using a UL concession that has a fixed time sequence relationship with the PUSCH. Therefore, when a downlink service requirement is greater than a downlink service requirement, the base station needs to carry only a small amount of downlink data, but the base station needs to set up a large number of subframes. downlink link to scale sufficient PUSCH resources when using a UL lease. Consequently, resources in the time domain are wasted, and a mechanism to access the listen before speaking channel (English: Listen Before Talk, LBT) needs to be implemented frequently. If the LBT fails, the UL grant cannot be sent, and an uplink PUSCH cannot be scaled, thus limiting an opportunity for channel access. In addition, because of a constraint on the UL concession's fixed time sequence ratio, the base station also cannot scale a rising link subframe. Therefore, how to support efficient uplink transmission in an unlicensed spectrum when uplink and downlink services are unbalanced is a problem to be resolved urgently.
[004] In the prior art, staggering a plurality of subframes is introduced in assisted access
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3/111 enhanced licensee (English: enhanced Licensed-Assisted Access, eLAA). A base station device can send a plurality of UL leases in a downlink link subframe, and stagger a plurality of consecutive uplink subframes when using a UL lease. In this way, a waste of channel resource caused by frequently sending a UL grant can be reduced, and an additional UL subframe can be scaled because the synchronization of the UL grant is flexible. However, in the prior art, a minimum UL grant escalation delay is 4 ms (the delay is used by the UE to receive and detect the UL grant and perform packet encapsulation on a PUSCH sent on an uplink resource indicated by UL concession). Therefore, when a downlink burst is less than four subframes, an idle gap (Gap) still exists between the downlink burst and a staggered uplink burst, and the UE cannot perform uplink link transmission. idle clearance. Consequently, channel resources cannot be used efficiently.
SUMMARY [005] This application provides a method for processing uphill link information and an apparatus to improve resource utilization in the time domain and improve efficiency of uphill link information processing.
[006] According to a first aspect, a method of sending upward link information is provided, and the method may include:
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4/111 receiving, by a terminal device, the first control information sent by a base station device in a first downlink transmission time interval;
determine, by the terminal device, a resource in the time domain based on the first control information, where the resource in the time domain includes at least one uphill link transmission time interval, a unit of time for the beginning of the resource in the time domain is later than the first downlink transmission time slot, and the start time unit is a first uplink transmission time slot of the at least one downlink transmission time slot. climb; and sending, by the terminal device, data information on an uphill link data channel, where the uphill link data channel corresponds to at least one uphill link transmission time slot on the resource in the time domain.
[007] In this request, the terminal device can receive the first control information sent by the base station device, and determine, based on the first control information, the resource in the time domain that remains after the transmission time interval. downlink carrying the first control information. A time interval between the resource start time unit in the time domain indicated by the first control information and the downlink link transmission time interval is relatively small, and the terminal device can send link data data. climb on
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5/111 resource in the time domain, without waiting for escalation based on the granting of rising link, thereby improving resource utilization in the time domain. In this application, the terminal device can send uplink data information in a time less than an uplink scheduling delay based on uplink concession, so that the uplink data transmission efficiency can be improved. improved, the uplink data information can be processed more flexibly and applicability is greater.
[008] With reference to the first aspect, in a first possible implementation, determining, by the terminal device, a resource in the time domain based on the first control information includes:
determine, by the terminal device, the start time unit based on the first control information.
[009] In this request, the first control information sent by the base station device can be used to indicate the unit start time resource in the non-concession time domain, and the terminal device can send uplink data data. starting from the start time unit. The first control information is used to indicate the unit onset time of the resource in the time domain without concession, so that a resource indication mode is more flexible, an operation is simpler and applicability is greater.
[010] With reference to the first aspect or the first possible implementation of the first aspect, in a second possible implementation, determine, by the device
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6/111 terminal, a time domain feature based on the first control information includes:
determine, by the terminal device, a length of the resource in the time domain or an end time of the resource in the time domain based on the first control information.
[011] In this order, the first control information sent by the base station device can be used to indicate the length and end time of the resource in the time domain without concession, so that a resource indication mode is more flexible , a mode of operation is simpler and applicability is greater.
[012] With reference to the first aspect, in a third possible implementation, determining, by the terminal device, a resource in the time domain based on the first control information includes:
determine, by the terminal device, the start time unit based on the first control information, and determine an end time of the resource in the time domain based on the start time unit and a length of the resource in the time domain ; where the length of the resource in the time domain is a predefined length or a length configured based on the first highest layer signal sent by the base station device.
[013] In this order, the time domain resource start time unit without concession can be determined by using the first control information sent by the base station device, and the time domain resource end time is determined based on
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7/111 length that is of the resource in the time domain and that is predefined or that is configured based on the highest layer signaling, so that the resource in the time domain can be determined. In this way, signaling overloads are relatively low. In addition, for the length that is of the resource in the time domain and that is configured based on the highest layer signaling, flexibility of specific resource configuration is maintained.
[014] With reference to the first possible implementation of the first aspect to the third possible implementation of the first aspect, in a possible fourth implementation, the first control information is used to indicate a number of symbols occupied by the base station device in a last subframe or in a last transmission time interval of a downlink link, the descending link burst includes at least one consecutive downlink transmission time interval, and at least one link transmission time interval. consecutive descent includes the first downlink transmission time interval; and determining, by the terminal device, the start time unit based on the first control information includes:
determine, by the terminal device, the start time unit based on the number of symbols.
[015] In this order, the first control information sent by the base station device can be used to indicate the number of symbols occupied by the device
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8/111 base station in the last subframe or in the last transmission time interval of the downlink burst, and the unit of time of beginning of the resource in the time domain without concession is determined based on the number of symbols, so that a way of determining resource in the time domain without concession is more flexible, applicability is greater and signaling overheads are relatively low.
[016] With reference to the first possible implementation of the first aspect to the third possible implementation of the first aspect, in a possible fifth implementation, the start time unit is later than a target time unit, and a time interval between target time unit and start time unit is a first time interval; and the target time unit is the first downlink transmission time slot; or the target time unit is a subframe in which the first downlink transmission time slot exists; or the target time unit is a last subframe or last transmission time interval of a downlink burst, the downlink burst includes at least one consecutive downlink transmission time interval, and the hair at least one consecutive downlink transmission time slot includes the first downlink transmission time slot.
[017] In this order, the downlink link transmission time slot carrying the first control information, the subframe in which the downlink link transmission time exists, or the last
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9/111 subframe or transmission time interval of the downlink burst in which the downlink transmission time interval exists can be determined as the target time unit by using the first control information sent by the station device basis, and a resource in the time domain after the target time unit is determined as the resource in the time domain without concession, so that resource use in the time domain can be improved, and efficiency of data link processing. climb can also be improved.
[018] With reference to the fifth possible implementation of the first aspect, in a sixth possible implementation, determining, by the terminal device, the start time unit based on the first control information includes:
determine, by the terminal device, the target time unit based on the first control information; and determining, by the terminal device, the start time unit based on the target time unit and the first time interval; where the first time slot is a predefined time slot, or the first time slot is configured when using second highest layer signaling sent by the base station device.
[019] In this order, the target time unit used to determine the resource in the time domain without concession can be determined based on the first control information sent by the base station device, and the first time interval used to determine the resource in the time domain without concession is determined in a predefined mode,
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10/111 a higher layer signaling configuration mode or the like, so that the resource in the time domain without concession can be determined. In this way, diversity in a way of determining resource in the time domain is improved and signaling overheads are less. In addition, resource-specific configuration flexibility is maintained in the highest layer signaling configuration mode.
[020] With reference to the fifth possible implementation of the first aspect, in a seventh possible implementation, the first control information is used to indicate the first time interval; and determining, by the terminal device, the start time unit based on the first control information includes:
determine, by the terminal device, the start time unit based on the first time interval and the target time unit.
[021] In this order, the first time interval used to determine the resource in the time domain without concession can be determined based on the first control information sent by the base station device, so that the start time unit can be determined based on the target time unit. In this way, diversity of a way of determining the start time unit is improved, and an operation of indicating the resource in the time domain is more flexible.
[022] With reference to the seventh possible implementation of the first aspect, in an eighth possible implementation, before determining, by the terminal device, the
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11/111 start time unit based on the first time interval and the target time unit, the method additionally includes:
determine, by the terminal device, the target time unit based on the first control information.
[023] In this application, the target time unit used to determine the resource in the time domain without concession can be determined based on the first control information sent by the base station device, so that diversity in a way of determining the unit target time is improved.
[024] With reference to any of the first aspect and the first possible implementation to the eighth possible implementation of the first aspect, in a ninth possible implementation, a time interval between the first downlink transmission time interval and the unit start time is less than a second time interval, the second time interval is a minimum time interval between a second downlink transmission time interval and a target uphill link transmission time interval, the second downlink link transmission time slot carries the uplink link concession, and the target up link transmission time slot corresponds to a stepped up link channel when using the uplink link grant;
the uplink link grant is used to indicate a uplink channel transport format; and the uplink channel transport format includes at least one of the following information:
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12/111 a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel; and a time interval between the second downlink transmission time interval and the target uplink transmission time interval.
[025] In this order, the time interval between the downlink transmission time interval carrying the first control information sent by the base station device and the resource start time unit in the non-grant time domain is shorter that a minimum escalation delay schedule based on UL concession, so that resource utilization can be improved, and uplink data transmission efficiency can be improved. The minimum escalation escalation delay based on UL concession is a time interval between an UL concession and an earlier scaled PUSCH when using the UL concession. In comparison to a scaling mode based on a conventional UL grant, in this application, more time domain resources can be used, channel utilization efficiency can be increased, uplink link processing efficiency can be improved, and a The way of processing information of uphill link has greater applicability. The uphill link grant provided in this order can be used to indicate the uplink channel transport format, and the uplink transport format.
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13/111 uphill link may include one of a plurality of pieces of content, so that efficiency of uphill link information processing can be improved, and an uphill link information processing mode has greater applicability.
[026] With reference to any of the first aspect and the first possible implementation to the ninth possible implementation of the first aspect, in a tenth possible implementation, the first control information is common control information.
[027] In this order, the common control information can be used to indicate the resource in the time domain without concession, so that overloads are reduced, an operation is simple and applicability is high.
[028] With reference to any one of the first aspect and the first possible implementation to the tenth possible implementation of the first aspect, in an eleventh possible implementation, before sending, by the terminal device, data information in a link data channel ascent, the method additionally includes:
determining, by the terminal device, a transport format of the uphill link data channel; where the transport format of the uplink data channel includes at least one of the following information:
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
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14/111 a code sequence of a demodulation reference signal on the uplink data channel;
a TBS transport block size loaded in the uplink data channel; and any one of at least a portion of information included in the transport format of the uplink data channel is predefined information or information configured based on the third highest layer signal sent by the base station device.
[029] Uplink data channel transport formats provided in this order are more diverse, a way to establish the uplink data channel transport format is more flexible, and a link information processing mode ascent has greater applicability.
[030] With reference to any one of the first aspect and the first possible implementation to the eleventh possible implementation of the first aspect, in a possible twelfth implementation, before sending, through the terminal device, data information in a data channel of climb link, the method additionally includes:
execute, by the terminal device, listen before speaking LBT on a carrier in which the uplink data channel is located, and detect that the channel is idle.
[031] In the uphill link information processing method provided in this request, before sending uphill link data, the terminal device can execute LBT and detect that the channel is idle, so that
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15/111 The effectiveness of sending uplink data information can be ensured, and applicability is greater.
[032] According to a second aspect, a method of receiving upward link information is provided, and the method may include:
send, by a base station device, first control information to a terminal device in a first downlink transmission time slot, where the first control information is used to indicate a resource in the time domain, the resource in the time domain includes at least one uplink transmission time slot, one time unit onset of the resource in the time domain is later than the first downlink transmission time slot, and the time unit start is a first uphill link transmission time slot of at least one uphill link transmission time slot; and receiving, by the base station device on a uplink data channel, data information sent by the terminal device, where the uplink data channel corresponds to at least one uplink transmission time slot on the resource in the time domain.
[033] With reference to the second aspect, in a first possible implementation, the first control information is used to indicate the unit of start time.
[034] With reference to the second aspect or the first possible implementation of the second aspect, in a second possible implementation, the first information of
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16/111 control is used to indicate a resource length in the time domain or an end time of the resource in the time domain.
[035] With reference to the second aspect, in a third possible implementation, the first control information is used to indicate the unit of start time;
an end time of the resource in the time domain is obtained based on the start time unit and a length of the resource in the time domain; and the length of the resource in the time domain is a predefined length or a length configured based on the first highest layer signaling configured by the base station device for the terminal device.
[036] With reference to one or another of the first possible implementation of the second aspect and the third possible implementation of the second aspect, in a fourth possible implementation, the first control information is used to indicate a number of symbols occupied by the station device Based on a last subframe or last transmission time interval of a downlink link, the downlink burst includes at least one consecutive downlink transmission time interval, at least one time interval consecutive downlink transmission time includes the first downlink transmission time interval, and the number of symbols is used to determine the start time unit.
[037] With reference to one or another of the first possible implementation of the second aspect and the second possible implementation of the second aspect, on a fifth
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17/111 possible implementation, the start time unit is later than a target time unit, and a time interval between the target time unit and the start time unit is a first time interval; and the target time unit is the first downlink transmission time slot; or the target time unit is a subframe in which the first downlink transmission time slot exists; or the target time unit is a last subframe or last transmission time interval of a downlink burst, the downlink burst includes at least one consecutive downlink transmission time interval, and the hair at least one consecutive downlink transmission time slot includes the first downlink transmission time slot.
[038] With reference to the fifth possible implementation of the second aspect, in a sixth possible implementation, the first control information is used to indicate the target time unit;
the start time unit is obtained based on the target time unit and the first time interval; and the first time slot is a predefined time slot, or the first time slot is configured by using the second highest layer signaling configured by the base station device for the terminal device.
[039] With reference to the fifth possible implementation of the second aspect, in a seventh possible implementation, the first control information is used to indicate the first time interval; and
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18/111 the start time unit is obtained based on the target time unit and the first time interval.
[040] With reference to the seventh possible implementation of the second aspect, in a possible eighth implementation, the target time unit is indicated by the first control information.
[041] With reference to any of the second aspect and the first possible implementation to the eighth possible implementation of the second aspect, in a ninth possible implementation, a time interval between the first downlink transmission time interval and the unit start time is less than a second time interval, the second time interval is a minimum time interval between a second downlink transmission time interval and a target uphill link transmission time interval, the second downlink link transmission time slot carries the uplink link concession, and the target up link transmission time slot corresponds to a stepped up link channel when using the uplink link grant;
the uplink link grant is used to indicate a uplink channel transport format; and the uplink channel transport format includes at least one of the following information:
a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink data channel;
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19/111 a modulation and coding scheme for the uplink data channel; and a time interval between the second downlink transmission time interval and the target uplink transmission time interval.
[042] With reference to any of the second aspect and the first possible implementation to the ninth possible implementation of the second aspect, in a tenth possible implementation, the first control information is common control information.
[043] With reference to any of the second aspect and the first possible implementation to the tenth possible implementation of the second aspect, in an eleventh possible implementation, a transport format of the uphill data channel includes at least one of the following information:
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
a code sequence of a demodulation reference signal on the uplink data channel;
a TBS transport block size loaded in the uplink data channel; and any one of at least a piece of information included in the transport format of the uplink data channel is predefined information or information configured based on the third highest layer signaling
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20/111 configured by the base station device to the terminal device.
[044] According to a third aspect, a terminal device is provided, and the terminal device can include:
a receiving module, configured to receive first control information sent by a base station device in a first downlink transmission time interval;
a determination module, configured to determine a resource in the time domain based on the first control information received by the receiving module, where the resource in the time domain includes at least one uphill link transmission time interval, one unit start time of the resource in the time domain is later than the first downlink transmission time interval, and the start time unit is a first uplink transmission time interval of at least one interval upstream link transmission time; and a sending module, configured to send data information on an uphill link data channel, where the uphill link data channel corresponds to at least one uphill link transmission time slot on the resource in the domain of the domain. time determined by the determination module.
[045] With reference to the third aspect, in a first possible implementation, the determination module is configured to:
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21/111 determine the start time unit based on the first control information received by the receiving module.
[046] With reference to the third aspect or the first possible implementation of the third aspect, in a second possible implementation, the determination module is configured to:
determine a length of the resource in the time domain or an end time of the resource in the time domain based on the first control information received by the receiving module.
[047] With reference to the third aspect, in a third possible implementation, the determination module is configured to:
determine the start time unit based on the first control information received by the receiving module, and determine an end time of the resource in the time domain based on the start time unit and a length of the resource in the time domain ; where the length of the resource in the time domain is a predefined length or a length configured based on the first highest layer signal sent by the base station device.
[048] With reference to the first possible implementation of the third aspect to the third possible implementation of the third aspect, in a fourth possible implementation, the first control information is used to indicate a number of symbols occupied by the base station device in a last subframe or in a last transmission time interval of a data link burst
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22/111 descent, the descent link burst includes at least one descent link transmission time slot
consecutive, and the at least one interval time in streaming in consecutive downlink includes The first transmission time interval link in descent; and the module in determination is configured to: to determine the start time unit based at
number of symbols.
[049] With reference to the first possible implementation of the third aspect to the third implementation
possible of third aspect, in a fifth Implementation possible , a unity of time to start is more late that one unity in target time, and a interval in time between unity in target time and the unit start time is a first interval of time; and the unit of time target is the first inte time interval
downlink link transmission; or the target time unit is a subframe in which the first downlink transmission time slot exists; or the target time unit is a last subframe or last transmission time interval of a downlink burst, the downlink burst includes at least one consecutive downlink transmission time interval, and the hair at least one consecutive downlink transmission time slot includes the first downlink transmission time slot.
[050] With reference to the fifth possible implementation of the third aspect, in a sixth possible implementation, the determination module is configured to:
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23/111 determine the target time unit based on the first control information received by the receiving module; and determining the start time unit based on the target time unit and the first time interval; where the first time slot is a predefined time slot, or the first time slot is configured when using second highest layer signaling sent by the base station device.
[051] With reference to the fifth possible implementation of the third aspect, in a seventh possible implementation, the first control information is used to indicate the first time interval; and the determination module is configured to:
determine the start time unit based on the first time interval and the target time unit.
[052] With reference to the seventh possible implementation of the third aspect, in an eighth possible implementation, the determination module is additionally configured for:
determine the target time unit based on the first control information received by the receiving module.
[053] With reference to any of the third aspect and the first possible implementation to the eighth possible implementation of the third aspect, in a ninth possible implementation, a time interval between the first downlink transmission time interval and the unit start time is less than a second time interval, the second time interval is a minimum time interval between a second time interval
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24/111 downlink link transmission and a target uplink transmission time slot, the second downlink transmission time slot carries the uplink link lease, and the link transmission time slot target ascent corresponds to a staggered ascent link channel when using the ascent link concession;
the uplink link grant is used to indicate a uplink channel transport format; and the uplink channel transport format includes at least one of the following information:
a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel; and a time interval between the second downlink transmission time interval and the target uplink transmission time interval.
[054] With reference to any of the third aspect and the first possible implementation to the ninth possible implementation of the third aspect, in a tenth possible implementation, the first control information is common control information.
[055] With reference to any of the third aspect and the first possible implementation to the tenth possible implementation of the third aspect, in an eleventh possible implementation, the determination module is additionally configured for:
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25/111 determine a transport format of the uphill data channel; where the transport format of the uplink data channel includes at least one of the following information:
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
a code sequence of a demodulation reference signal on the uplink data channel; and a TBS transport block size loaded in the uplink data channel; and any one of at least a portion of information included in the transport format of the uplink data channel is predefined information or information configured based on the third highest layer signal sent by the base station device.
[056] With reference to any of the third aspect and the first possible implementation to the eleventh possible implementation of the third aspect, in a possible twelfth implementation, the terminal device additionally includes:
a detection module, configured to: perform listening before speaking LBT on a carrier on which the uplink data channel is located, and detects that the channel is idle.
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26/111 [057] According to a fourth aspect, a base station device is provided, and the base station device can include:
a sending module, configured to send first control information to a terminal device in a first downlink transmission time interval, where the first control information is used to indicate a resource in the time domain, the resource in the domain of time includes at least one uplink transmission time slot, one unit of time onset of the resource in the time domain is later than the first downlink transmission time slot, and the start is a first uphill link transmission time slot of at least one uphill link transmission time slot; and a receiving module, configured to receive, on an uphill link data channel, data information sent by the terminal device, where the uphill link data channel corresponds to at least one link link transmission time slot. rise in the resource in the time domain.
[058] With reference to the fourth aspect, in a first possible implementation, the first control information is used to indicate the unit of start time.
[059] With reference to the fourth aspect or the first possible implementation of the fourth aspect, in a second possible implementation, the first control information is used to indicate a resource length in the
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27/111 time domain or a moment of end of resource in the time domain.
[060] With reference to the fourth aspect, in a third possible implementation, the first control information is used to indicate the start time unit;
an end time of the resource in the time domain is obtained based on the start time unit and a length of the resource in the time domain; and the length of the resource in the time domain is a predefined length or a length configured based on the first highest layer signaling configured by the base station device for the terminal device.
[061] With reference to one or another of the first possible implementation of the fourth aspect and the second possible implementation of the fourth aspect, in a fourth possible implementation, the first control information is used to indicate a number of symbols occupied by the station device Based on a last subframe or last transmission time interval of a downlink link, the downlink burst includes at least one consecutive downlink transmission time interval, at least one time interval consecutive downlink transmission time includes the first downlink transmission time interval, and the number of symbols is used to determine the start time unit.
[062] With reference for or another in the first Implementation possible of bedroom aspect and the second Implementation possible of bedroom aspect, in a farm
possible implementation, the unit of start time is more
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11/28 late that a target time unit, and a time interval between the target time unit and the start time unit is a first time interval; and the target time unit is the first downlink transmission time slot; or the target time unit is a subframe in which the first downlink transmission time slot exists; or the target time unit is a last subframe or last transmission time interval of a downlink burst, the downlink burst includes at least one consecutive downlink transmission time interval, and the hair at least one consecutive downlink transmission time slot includes the first downlink transmission time slot.
[063] With reference to the fifth possible implementation of the fourth aspect, in a sixth possible implementation, the first control information is used to indicate the target time unit;
the start time unit is obtained based on the target time unit and the first time interval; and the first time slot is a predefined time slot, or the first time slot is configured by using the second highest layer signaling configured by the base station device for the terminal device.
[064] Coi n reference for The fifth Implementation possible of fourth aspect, in an seventh Implementation possible, The first information in control is used for
indicate the first time interval; and the start time unit is obtained based on the target time unit and the first time interval.
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29/111 [065] With reference to the sixth possible implementation of the fourth aspect, in a possible eighth implementation, the target time unit is indicated by the first control information.
[066] With reference to any of the fourth aspect and the first possible implementation to the eighth possible implementation of the fourth aspect, in a ninth possible implementation, a time interval between the first downlink transmission time interval and the unit start time is less than a second time interval, the second time interval is a minimum time interval between a second downlink transmission time interval and a target uphill link transmission time interval, the second downlink link transmission time slot carries the uplink link concession, and the target up link transmission time slot corresponds to a stepped up link channel when using the uplink link grant;
the uplink link grant is used to indicate a uplink channel transport format; and the uplink channel transport format includes at least one of the following information:
a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel; and
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A time interval between the second downlink transmission time interval and the target uplink transmission time interval.
[067] With reference to any of the fourth aspect and the first possible implementation to the ninth possible implementation of the fourth aspect, in a tenth possible implementation, the first control information is common control information.
[068] With reference to any of the fourth aspect and the first possible implementation to the tenth possible implementation of the fourth aspect, in an eleventh possible implementation, an uphill data channel transport format includes at least one of the following information:
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
a code sequence of a demodulation reference signal on the uplink data channel; and a TBS transport block size loaded in the uplink data channel; and any of the at least a portion of information included in the transport format of the uplink data channel is predefined information or information configured based on the third highest layer signaling configured by the base station device for the terminal device.
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31/111 [069] In accordance with a fifth aspect, an uphill link information processing system is provided, and the system may include the end device according to the third aspect and the base station device according to the fourth aspect.
[070] According to a sixth aspect, a terminal device is provided, and the terminal device can include a memory and a processor; where the memory is configured to store a set of program codes; and the processor is configured to call the program code stored in memory, to perform various implementations provided in the method of sending uplink information according to the first aspect.
[071] According to a seventh aspect, a base station device is provided, and the base station device can include a memory and a processor; where the memory is configured to store a set of program codes; and the processor is configured to call the program code stored in memory, to perform various implementations provided in the method of receiving uplink information according to the second aspect.
[072] In this order, the base station device can send the first control information to the terminal device, and indicate, when using the first control information, the resource in the time domain that is after the transmission time interval. downlink carrying the first control information. An interval
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32/111 time between the resource start time unit in the time domain indicated by the first control information and the downlink link transmission time interval is relatively small, and the terminal device can send link data information ascent in the resource in the time domain, without waiting for escalation based on the granting of an ascent link, thereby improving resource utilization in the time domain. In this application, the terminal device can send upward link data information in a time less than a scheduling delay of a scheduling scenario based on upward link concession, so that efficiency of forwarding link data information is sent. ascent can be improved, and the base station device can receive, in a shorter time, the uphill link data information sent by the terminal device, so that the uphill link data information can be processed more flexibly, and applicability is greater.
BRIEF DESCRIPTION OF THE DRAWINGS [073] To describe the technical solutions in the modalities of the present invention more clearly, the following briefly describes the attached drawings required to describe the modalities. Of course, the accompanying drawings in the description below show merely some embodiments of the present invention, and a person of ordinary skill in the art can still derive other designs from these attached drawings without creative efforts.
[074] Figure 1 is a schematic diagram of a position relationship between an uplink link subframe and a resource escalation downlink subframe;
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33/111 [075] Figure 2 is a schematic flowchart of a method for processing uphill link information according to an embodiment of the present invention;
[076] Figure 3 is another schematic diagram of a position relationship between an uplink link subframe and a resource escalation downlink subframe;
[077] Figure 4 is a schematic diagram of a time domain resource according to an embodiment of the present invention;
[078] Figure 5 is another schematic diagram of a time domain resource according to an embodiment of the present invention;
[079] Figure 6 is another schematic diagram of a time domain resource according to an embodiment of the present invention;
[080] Figure 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
[081] Figure 8 is another schematic structural diagram of a terminal device according to an embodiment of the present invention;
[082] Figure 9 is another schematic structural diagram of a terminal device according to an embodiment of the present invention;
[083] Figure 10 is a schematic structural diagram of a base station device according to an embodiment of the present invention;
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34/111 [084] Figure 11 is another schematic structural diagram of a base station device according to an embodiment of the present invention; and [085] Figure 12 is a schematic structural diagram of an uphill link information processing system according to an embodiment of the present invention.
DESCRIPTION OF MODALITIES [086] In an OFDM technology used in an LTE system, a smaller resource unit used for data transmission is a resource element (English: Resource Element, RE), and an RE corresponds to an OFDM symbol in the domain time and to a sub-carrier in the frequency domain. On this basis, a resource block (English: Resource Block, RB) includes a plurality of consecutive OFDM symbols in the time domain and a plurality of consecutive subcarriers in the frequency domain, and the RB is a basic unit for resource scaling. A single carrier is used for LTE system uplink transmission, and a RE corresponds to a single carrier frequency division multiple access symbol (English: Single Carrier Frequency Division Multiple Access, SC-FDMA) and a subcarrier in the frequency domain. In LTE system uplink transmission, an UL concession is UE-specific control signaling, there is a fixed time sequence relationship between an UL concession and a staggered PUSCH when using the UL concession, and a staggered PUSCH when using an UL concession included in a downlink control channel in subframe #n is in subframe # n + 4.
[087] To extend available bandwidth, an assisted access technology licensed using Evolution of
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11/35
Long Term (English: Licensed-Assisted Access using Long Term Evolution, LAA-LTE) is introduced in Release 13, and an available spectrum can be extended to an unlicensed frequency band when using carrier aggregation technology (English: Carrier Aggregation, CA). A licensed spectrum is used to implement coverage without interruption and to load some services with a high delay requirement, and an unlicensed spectrum is used to load some data services. To implement, in the unlicensed spectrum, friendly coexistence between a LAA system and both from a base station and UE belonging to different operators of the LAA system and friendly coexistence between the LAA system and an inter-RAT wireless node such as a wireless node Wi-Fi, the LAA system uses a LBT channel access mechanism, and the base station sends downlink information after detecting that a channel is idle. Specifically, LBT in downlink transmission is an evaluation of free channels based on random backoff (English: Clear Channel Assesssment, CCA) (access to UL type 1 channel). A specific procedure is as follows: A sending node uniformly generates a backoff timer N at random between 0 and a contention window size (English: Contention Window Size, CWS), and performs monitoring at a slot granularity CCA (English: CCA slot). If the sending node detects, in the CCA slot, that a channel is idle, a backoff timer value is decreased by 1; or if the sending node detects that a channel is busy, the backoff timer is suspended. In other words, a backoff timer value N remains unchanged when the channel is busy, until the sending node
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36/111 detects that the channel is idle. When the backoff timer value is decreased to 0, the sending node can immediately occupy the channel. After the sending node occupies the channel, a maximum length of time that can be used to send information continuously is a maximum channel occupation time (English: Maximum Channel Occupancy Time, MCOT). After continuously occupying the channel for the length, the sending node needs to release the channel, and can execute access again only after executing LBT again. A criterion for determining a channel status is as follows: A wireless communications device compares power received from a channel in a CCA slot with a power detection threshold. If the power is greater than the threshold, the channel is busy; or if the power is less than the threshold, the channel is idle.
[088] In eLAA introduced in Release 14, upstream link transmission in the unlicensed spectrum is additionally supported. Consistent with an existing LTE system, eLAA uphill link transmission is staggered by the base station when sending a UL lease, and prior to the staggered uphill link transmission, a terminal device can perform sending only after the end device determines, by means of LBT, that a channel is idle. In addition, the uplink transmission supports two types of LBT: CCA based on random backoff and CCA of single slot. The CCA based on random backoff is similar to that on downlink transmission. A single-slot CCA procedure is as follows: The sending node performs CCA monitoring in a single 25 ps slot. If the sending node detects, in the 25 ps CCA slot, that a channel is
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37/111 idle, the sending node can immediately access the channel; or if the sending node detects, in the 25 ps CCA slot, that a channel is busy, the sending node does not send information, and can wait for the next upstream data channel and perform the next slot CCA monitoring single before the next uplink data channel. To improve an opportunity for access to the uplink channel, an MCOT occupied by the base station after the base station preemptively acquires a channel can be shared with the end device for use, and the end device can perform single slot CCA on the MCOT , and you need to run CCA based on random backoff after the MCOT is finished. Specifically, the base station notifies the terminal device of a start time and duration of an uplink burst when using cell-specific control signaling (English: Common PDCCH, CPDCCH) included in a downlink control channel. In uphill link transmission, in the uphill link burst, the terminal device can perform single-slot CCA to access a channel, and in uphill link transmission, in addition to the uphill link burst, the terminal device must perform CCA based on random backoff to access the channel. In addition, the CPDCCH is additionally used to indicate a number of symbols in a downlink end subframe, enable two-stage uplink escalation and more. A last downlink subframe of a downlink burst is referred to as an end subframe. To send downlink information, the base station may not occupy all of the symbols in the downlink end subframe,
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38/111 but occupies a symbol that lines up in front of the subframe without occupying a symbol that lines up behind in the subframe. The backward queuing symbol remains idle, so that LBT is executed for uphill link transmission in a next subframe, or the backward queuing symbol is used by the UE to send an uphill link control channel and is used to load random access information, an uplink polling reference signal, a hybrid auto repeat request ACK feedback (English: Hybrid Automatic Repeat reQuest, HARQ) (downlink link HARQ ACK feedback) and more. For example, the last subframe (the end subframe) of the downlink burst includes 14 symbols, and the base station occupies the first K symbols in the end subframe to send downlink information, where K can be one of 3 , 6, 9, 10, 11, 12 and 14.
[089] Conventionally, each LUS PUSCH can be scaled only when using a UL lease that has a fixed time sequence relationship with the PUSCH. Therefore, when a downlink service requirement is greater than a downlink service requirement, the base station needs to carry only a small amount of downlink data, but the base station needs to set up a large number of subframes. downlink link to scale sufficient PUSCH resources when using a UL lease. As a result, time domain resources are wasted, and LBT needs to be run frequently, thereby limiting an opportunity to access the channel. Referring to figure 1, figure 1 is a schematic diagram of a position relationship between a
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39/111 uplink subframe and a downlink subframe in resource scaling. As shown in figure 1, when the base station needs to scale four uplink subframes, the base station needs to set up four downlink subframes and send a UL grant on each downlink subframes, but the downlink subframes descent may not be used for uphill link transmission. The UL grant sent on each downlink link subframe is used to stagger an uplink link subframe corresponding to the downlink link subframe. For example, a UL lease sent on the downlink subframe #n is used to scale up the downlink subframe # n + 4. Additionally, when downlink link PDSCH does not need to be sent in a downlink link subframe, and there is no PDSCH information between two adjacent PDCCHs carrying an UL concession, the base station may need to interrupt occupation of a channel. Therefore, channel occupation is discontinuous. The base station still needs to run LBT before sending an upcoming UL lease. If the LBT fails, the UL grant cannot be sent, and an uphill link PUSCH cannot be scaled either. In addition, because there is a fixed time sequence sync relationship between an UL concession and a scaled PUSCH when using the UL concession, for example, only one PUSCH in subframe # n + 4 can be scaled when using an UL concession in the #n subframe, and the base station cannot scale an additional uphill link subframe.
[090] It is known that how to support efficient uplink link transmission in an unlicensed spectrum when uplink and downlink services
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40/111 are unbalanced is a problem to be solved urgently. Therefore, the embodiments of the present invention provide a method of processing uphill link information and an apparatus, to indicate, when using downlink link control information sent by a base station device, that a resource in the domain of available time for a terminal device it is a time domain resource after downlink transmission has ended. The terminal device can send uplink data at the resource in the time domain indicated by the downlink control information, without sending the UL stationary device in advance for escalation by the base station device. The terminal device can execute, based on a preconfigured uphill link data channel format, encapsulating packets in advance of data information to be sent in a PUSCH, and immediately send the uphill link data information in the resource in the corresponding time domain after detecting the downlink link control information, without sending a scheduling request (English: Scheduling Request, SR) and waiting for an UL grant before sending the uplink data information, reducing thereby an uphill link transmission delay and improving uplink transmission efficiency.
[091] It should be noted that the modalities of the present invention can be applied to a wireless communications system operating in an unlicensed spectrum, or can be applied to a wireless communications system operating in a licensed spectrum. A base station device in the wireless communications system sends link information
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41/111 downhill (or referred to as downlink data information) in the licensed spectrum or in the unlicensed spectrum, and a terminal device in the wireless communications system sends upward link information (or referred to as downstream data information) ascent link) in the licensed spectrum or the unlicensed spectrum. Scaling delays for uphill link transmission, scaled based on a UL concession, in the licensed spectrum and in the unlicensed spectrum are both 4 ms. Therefore, in the modalities of the present invention, regardless of whether data information is sent in an idle gap carried by the escalation delay or in a PUSCH without concession (English: Grant Free or Grantless), a delay can be reduced, and transmission efficiency ascent link can be improved. In addition, for transmission of uplink in the unlicensed spectrum, in an implementation provided in the modalities of the present invention, operations to send an SR and wait for a UL grant by the terminal device can be avoided, thereby additionally avoiding a loss of opportunity of access caused when a channel cannot be acquired by preemption when using SR and UL grant. Therefore, the implementation has high applicability.
[092] Network elements in the implementation provided in the modalities of the present invention are mainly a base station device and a terminal device (or referred to as UE) that can operate on a licensed spectrum or an unlicensed spectrum. The base station device includes a base macrostation, a microcell, a picocell, a residence eNodeB, a
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42/111 remote radio frequency, a relay and more, and can be determined specifically based on an actual application scenario. The base station device is not limited in this document. The terminal device can include a mobile phone, a notebook that can access an LTE system, a tablet and more, and can be determined specifically based on an actual application scenario. The terminal device is not limited in this document. With reference to figures 2 to 12, the following describes the method of processing uphill link information and the apparatus provided in the modalities of the present invention.
[093] Referring to figure 2, figure 2 is a schematic flowchart of a method of processing uphill link information according to an embodiment of the present invention. The method provided in this embodiment of the present invention includes the following steps.
[094] S101. A base station device sends first control information to a terminal device in a first downlink transmission time slot.
[095] S102. The terminal device receives the first control information sent by the base station device at the first downlink transmission time interval.
[096] During specific implementation, for staggered conventional uphill link transmission when using a UL lease, after receiving an SR sent by the terminal device, the base station device needs to scale, when using a UL lease, the terminal device to send
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43/111 uplink data information. Because of a delay between receiving, by the base station device, the SR sent by the terminal device and receiving, by the terminal device, the UL grant sent by the base station device, an uplink transmission delay is relatively high. In this embodiment of the present invention, a non-lease mechanism is introduced, so that the terminal device does not need to send an SR to the base station device, nor receive a UL lease sent by the base station device, and directly sends data information from uplink link in an uplink PUSCH resource configured by the base station device, thereby reducing a delay and improving resource utilization.
[097] In some feasible implementations, the base station device can send the first control information in the first downlink transmission time interval (the first downlink TTI). The first control information is used to indicate a resource in the time domain without concession. During specific implementation, the base station device can allocate the same time-frequency resource without concession to a plurality of terminal devices, and perform statistical multiplexing to avoid a resource waste caused when the terminal device has no uplink data for submit. In addition, the base station device can control a number of terminal devices for which the same resource without a concession is configured, to avoid a collision between data information shipments that may occur because of existing
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44/111 an excessively large number of terminal devices and a plurality of terminal devices sending data information on a resource in the time domain at the same time.
[098] In some feasible implementations, a resource in the time domain and resource in the frequency domain without concession can be configured in a semi-static manner using higher layer signaling sent by the base station device. However, considering that a downlink link service arrives at random, an occasion to perform a downlink link transmission by the base station device and an end time of downlink link transmission (for example, a last subframe in link transmission) descent or a last downstream link TTI) are dynamic. In addition, LBT needs to be executed before downlink transmission, so a dynamic feature of the downlink transmission occasion is more obvious. Therefore, the downlink transmission end time is very likely to be relatively distant from a time unit onset of a resource in the time domain with no pre-configured concession, and an idle gap between a DL and an UL has not yet been reached. it can be used effectively to transmit uplink data information. On this basis, in addition to an implementation of configuring a resource in the time domain without concession based on the higher layer signaling sent by the base station device, this embodiment of the present invention provides an implementation of dynamically indicating a resource in the time domain. In this modality of the present
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45/111 invention, the first control information delivered by the base station device can be used to explicitly or implicitly indicate the resource in the time domain without concession, including indicating a unit of time the resource starts in the time domain and / or a length of the resource in the time domain and / or a moment of end of the resource in the time domain and others. When the terminal device needs to transmit uplink data, the terminal device can perform pre-configured uplink data channel format in advance, encapsulating packets in data information to be sent in a PUSCH and , after receiving the first control information sent by the base station device, determine a resource in the time domain without concession based on the first control information, and then send, in the resource in the time domain indicated by the first control information, data uplink data obtained after packet encapsulation. Referring to figure 3, figure 3 is another schematic diagram of a position relationship between an uplink link subframe and a resource escalation downlink subframe. As shown in Figure 3, a downlink link subframe (or downlink TTI) nearest the base station device when sending a UL lease on the downlink subframe #n is the downlink subframe # n + 4. To use time domain resources of three downlink subframes, that is, downlink subframes # n + 1 to the downlink subframes # n + 3, the base station device can send the first control on
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46/111 downlink link subframe #n, to indicate that the three downlink link subframes, that is, the downlink link subframe # n + l to the downlink link subframe # n + 3 are resources in the domain of time without concession. After receiving the first control information, the terminal device can determine, based on the first control information, that resources in the time domain can be used to send information about uphill link data; in other words, the terminal device can determine, based on the first control information, that resources in the time domain are resources in the time domain without concession.
[099] It should be understood that a downlink transmission time slot (a downlink link TTI) is a smaller unit of transmission time for downlink link transmission, and a downlink transmission time slot. uphill (a uphill link TTI) is a smaller unit of transmission time for uphill link transmission. It should be understood that data information transmitted in the downlink transmission time slot includes downlink control information, and the downlink control information can be used to perform downlink link resource scheduling on a downlink data channel that exists in the downlink link transmission time slot, or can be used to perform uplink link resource scheduling on an uplink data channel that exists in a downstream time slot. uplink link transmission after the downlink link transmission time interval. A TTI with a length
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47/111 of 1 ms is used for an LTE system prior to Release 14. Both a length of an uplink TTI and a length of a downlink TTI are 1 ms; in other words, each of the length of the uplink TTI and the length of the downlink TTI is a length of a subframe. A TTI with a shorter length is introduced in Release 14 and NR (English: New Radio) 5G, and a base station device and terminal device that support short TTI transmission (English: short TTI, sTTI) can support a TTI with a length of 1 ms and an up link sTTI / down link sTTI with a length that is less than 1 ms. Supported available lengths of sTTI include seven SC-FDMA symbols (English: SC-FDMA Symbol, SS), one SS, two SSs, three SSs, four SSs and more. In other words, a downlink link subframe can include at least two downlink link sTTIs, and an uplink link subframe can include at least two uplink link sTTIs. In this embodiment of the present invention, the downlink TTI can be a TTI with a length of 1 ms, that is, a subframe, or it can be a sTTI with a length that is less than 1 ms, and the sTTI with a length that is less than 1 ms includes at least one downlink OFDM symbol. The uplink TTI can be a TTI with a length of 1 ms, that is, a subframe, or it can be a sTTI with a length that is less than 1 ms, and the sTTI with a length that is less than 1 ms includes at least one uphill link SC-FDMA symbol. It should be noted that, during specific implementation, each of a TTI with a length of 1 ms (ie, a subframe) or an sTTI with a length that is
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48/111 less than 1 ms is referred to as a TTI, and a specific TTI can be determined based on a TTI format used by the base station device or the terminal device in an actual application scenario, and is not limited to in this document .
[0100] In some feasible implementations, the resource in the time domain indicated by the first control information sent by the base station device is a resource without concession (or referred to as a resource in the time domain without concession) described in this embodiment of the present invention. . The non-concession resource described in this embodiment of the present invention is used for PUSCH transmission without concession by the terminal device. The base station device may allocate a resource in the time domain and / or resource in the frequency domain only to a terminal device as a resource without concession, or it can allocate the same resource in the time domain and / or resource in the frequency domain for at least two end devices as a non-concession resource. For a resource in the time domain without concession, the terminal device can determine whether to use the resource in the time domain to send uplink data information, and determine which uphill link TTI should use in the resource in the domain of the time to send the uplink data information. To be specific, when the resource in the non-concession time domain includes at least two uphill link TTIs, after receiving the first control information, the terminal device can send uphill link data information on at least one link TTI. rise in the resource in the time domain, or it can occupy some TTIs of
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49/111 uplink link in the resource in the time domain, or it can occupy all of the resource in the time domain. The time domain resource includes at least one TTI or subframe. Any of the at least one TTI / subframe can be a complete TTI / subframe, or it can be a partial TTI / subframe. In other words, the terminal device can send data information only in some resources in the TTI / subframe time domain. The time domain resource is after the first downlink link TTI carrying the first control information; in other words, a first TTI or a first subframe in the resource in the time domain is after the first downlink TTI carrying the first control information.
[0101] In some feasible implementations, a time interval between the time domain resource start time unit and an end time of the first downlink TTI (referred to as a downlink TTI) can be the same to 0; in other words, the unit of time to start the resource in the time domain is immediately following the downlink link TTI. Alternatively, a time interval between the time domain resource start time unit and a downlink link TTI end time can be greater than 0; in other words, the resource in the time domain starts after a period of time subsequent to the end of the downlink link TTI. When the time interval between the time domain resource start time unit and the downlink TTI end time is greater than 0, the time interval can be used for LBT. Alternatively, in some implementations, information from
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50/111 data may need to be transmitted on another downlink TTI after the downlink TTI; in other words, the downlink TTI is not a final downlink TTI of a downlink burst. In this case, the resource in the time domain needs to occur after transmission of the data information to be transmitted in another downlink link TTI after the downlink link TTI is completed. Alternatively, if the downlink link TTI is included in a downlink end subframe, the base station device does not occupy all downlink symbols in the downlink end subframe, in which case the resource in the no-time domain indicated by the first control information occurs after the downlink end subframe ends.
[0102] In some feasible implementations, the first control information sent by the control device
station base can to be information in control specific in user, or can to be information in control specific in group of users, or it can be common control information.
User-specific control information is scrambled when using a user-specific radio network temporary identifier (English: Radio Network Temporary Identifier, RNTI), and can be detected only by a specific terminal device, and the control information is valid only for the specific terminal device. User group specific control information can be detected only by a specific group of terminal devices (at least two terminal devices), and the control information is valid for only one device
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51/111 terminal included in the group. The common control information is scrambled when using a cell-specific RNTI, and can be detected by all activated terminal devices included in a cell, and the common control information is valid for all terminal devices that can detect the common control information.
[0103] In some feasible implementations, when the first control information is common control signaling (ie, common control information), the first control information is used to indicate the resource in the time domain without concession, and a channel existing common control (English: Common PDCCH, CPDCCH) can be used for the first control information. The base station device can scramble the common control signal when using a cell common RNTI (English: Cell Common RNTI, CC-RNTI). Alternatively, the base station device can scramble the common control signal when using a new common control channel format or a new cell-specific RNTI. During specific implementation, common control signaling can be loaded into a PDCCH channel area. Additionally, considering that a physical channel indicating the automatic hybrid repeat request (English: Physical Hybrid ARQ Indicator Channel, PHICH) original in the LTE system may not need to be received, for an HARQ indication, by a terminal device operating in an unlicensed spectrum. or in Release 14, a physical resource corresponding to the inactive PHICH can be used to load common control information to indicate the resource in the time domain to the terminal device.
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52/111 [0104] S103. The terminal device determines a resource in the time domain based on the first control information.
[0105] In some feasible implementations, after receiving the first control information, the terminal device can determine the resource in the time domain without concession based on the first control information, including determining resource parameters in the time domain such as the unit time of start of the resource in the time domain, the length (duration) of the resource in the time domain and the time of end of the resource in the time domain. If the terminal device determines any two of the three resource parameters in the time domain, the terminal device can determine the third parameter. In other words, the terminal device can determine the resource in the time domain if the terminal device has determined two of the three resource parameters in the time domain. Specifically, the time domain's start time unit is later than a target time unit, and a time interval between the target time unit and the start time unit is a first time interval.
[0106] The start time unit includes an earlier transmission time interval in which the terminal device is authorized to send uplink data information on the resource in the time domain, that is, a first TTI (referred to as a starting TTI) in at least one TTI included in the resource in the time domain or a first subframe (referred to as a starting subframe) in at least one subframe included in the resource in the domain
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53/111 time. A time start of the resource in the time domain is an earlier time when the terminal device is authorized to send data information on the resource in the time domain. The start time includes the start subframe or the time domain resource start TTI, and / or a position (a start position) in which the terminal device is authorized to start sending data information in the start subframe. / Start TTI. The start time unit includes the start TTI or the start subframe of the resource in the time domain, and the start TTI / start subframe can be a complete TTI or a complete subframe, or it can be a partial TTI or a partial subframe. For some start TTIs / start subframes, the end device needs to occupy all time domains of a complete TTI / complete subframe to send data information. For some other start TTIs / start subframes, the terminal device does not need to occupy all time domains of a complete TTI / complete subframe, and only occupies some time domains of the complete TTI / complete subframe to send data information. The time domains that the terminal device is authorized to occupy in the complete TTI / complete subframe are referred to as a partial TTI / partial subframe. An initial limit of the start time unit is a start position (English: start position) in which the terminal device begins to send data information in the start TTI / start subframe. Specifically, when the start TTI / start subframe is a complete TTI / subframe, a start position of the start TTI / start subframe is an initial limit of the
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TTI / subframe, and the start time unit is the start TTI / start subframe. Specifically, when the start TTI / start subframe is a partial TTI / partial subframe, a start position of the start TTI / start subframe is in a complete TTI / full subframe (or between an initial limit and an end limit of a complete TTI / complete subframe in which the start TTI / start subframe exists), and the start time unit can be the complete TTI / complete subframe, or it can be a part of a start position of the complete TTI / subframe complete for a final limit of the start TTI / start subframe. The start position is a time when the terminal device is authorized to start sending uplink data information in the start TTI / start subframe. For a licensed spectrum, the start TTI / start subframe is always a complete TTI / complete subframe, and the start position can always be an initial limit of the start TTI / start subframe (for example, an initial limit, referred to as 0 feet, of the complete subframe). For an unlicensed spectrum, optionally, the start TTI / start subframe can be a complete TTI / complete subframe, and the start position can be an initial limit (0 ps) of the start TTI / start subframe. In this case, the start time unit is a first complete TTI / complete subframe included in the resource in the time domain, as shown in (a) in figure 4. Figure 4 is a schematic diagram of a resource in the time domain according to an embodiment of the present invention. Optionally, the start TTI / start subframe can be a partial TTI / partial subframe, and the start position can be
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55/111 be in a complete TTI / complete subframe in which the start TTI / start subframe exists, and can be specifically in a first uphill link symbol or at the beginning of a second uphill link symbol. For example, when the resource in the time domain comes just after an end subframe of a downlink burst, and the end subframe occupies 14 symbols, the start position can be at the beginning of the second uplink link symbol. in the complete TTI / complete subframe (referred to as a symbol), as shown in (d) in figure 4. In this case, the start time unit can be a first complete TTI / complete subframe included in the resource in the time domain, or it can be a part (a part of the slope grid) from the start of a second symbol in the first complete TTI / complete subframe to a final limit of the subframe. Alternatively, the start position can be at 25 ps after an initial limit of a complete TTI / complete subframe (referred to as 25 ps), and at a first symbol, as shown in (b) in figure 4. In this case, the start time unit can be a first full TTI / full subframe included in the time domain resource, or it can be a part (a slope grid part) from 25 ps on the first full TTI / full subframe to a limit end of the subframe. Alternatively, the start position can be at 25 ps + TA (English: Timing Advance) after an initial limit of a complete TTI / complete subframe (referred to as 25 ps + TA), and in a first symbol, as shown in ( c) in figure 4. In this case, the start time unit can be a first complete TTI / complete subframe included in the
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56/111 resource in the time domain, or it can be a part (a slope grid part) from 25 ps + TA in the first complete TTI / complete subframe to a final limit of the subframe. An idle gap of a symbol, 25 ps or 25 ps + TA, is reserved in a position in front of a starting subframe, for LBT in an uplink data channel.
[0107] The target time unit is the downlink link transmission time interval (ie, the first downlink link TTI) carrying the first control information; or the target time unit is a subframe in which the first downlink TTI exists; or the target time unit is a last subframe or last TTI of a downlink burst, the downlink burst includes the target downlink TTI, and the downlink burst is at least one downstream TTI consecutive downlink. The target time unit can be a complete TTI / subframe, or it can be a partial TTI / subframe. When the base station device does not occupy all the time domains of a complete TTI / complete subframe, but occupies only a few time domains to send downlink information, the time domains occupied by the base station device are referred to as a Partial TTI / partial subframe.
[0108] The first time interval is a time interval between the target time unit and the start time unit. Optionally, the first time interval is a time interval between an initial limit or an end limit of a complete TTI / complete subframe in which the target time unit exists and a start position corresponding to the start time unit. For example, the unit of time
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57/111 target is a last subframe of the downlink burst, that is, an end subframe. A time domain range occupied by the base station in the end subframe is from a first symbol (referred to as symbol # 1) to a third symbol (referred to as symbol # 3). The start time unit is a complete first subframe after the end subframe, and the start position is a subframe limit. In this case, the first time interval is a time interval between an initial limit of the end subframe and the start position corresponding to the start time unit, i.e., a subframe. Alternatively, the first time interval is a time interval between an end limit of the end subframe and a start position corresponding to the start time unit, i.e., 0.
[0109] The first time interval is a time interval between the target time unit and the start time unit. Optionally, the first time interval is a time interval between an initial limit or an end limit of a complete TTI / complete subframe in which the target time unit exists and an initial limit of a complete TTI / complete subframe in which the unit start time exists. For example, the target time unit is a last subframe of the downlink burst, that is, an end subframe. The base station occupies all the symbols in the end subframe. The start time unit is a first subframe after the end subframe, and a start position is at the beginning of a second symbol in the subframe (a symbol). In this case, the first time interval is a time interval between a
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58/111 initial limit of the end subframe and the start position corresponding to the start time unit, that is, a subframe and a symbol; or the first time interval is a time interval between an end limit of the end subframe and the start position corresponding to the start time unit, that is, a symbol.
[0110] The end time includes a more recent time when the terminal device is authorized to send data information on the resource in the time domain, and the end time includes a last subframe or a last TTI (referred to as a unit of end time) included in the resource in the time domain, and / or a position (end position) in which the terminal device is authorized to stop sending data information in the last subframe / last TTI. The last subframe / last TTI can be a complete subframe / complete TTI, or it can be a partial subframe / partial TTI. The end position can be an initial limit or an end limit of a complete subframe / complete TTI in which the last subframe / last TTI included in the resource in the time domain exists, or it can be in a complete subframe / complete TTI in which the last subframe / last TTI exists.
[0111] The duration of the resource in the time domain is a length of time between the start and end times. Specifically, the duration can be a length of time between the resource time start unit in the time domain or the complete TTI / complete subframe in which the start time unit exists and the end time unit (or a TTI complete / complete subframe in which the end time unit exists), or can be
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59/111 a length of time between the start position corresponding to the start time unit and an end position corresponding to the end time unit. This embodiment of the present invention describes how the terminal device obtains the duration and the moment of beginning of the resource in the time domain, and the method is also applicable to a case in which the terminal device obtains the duration and the moment of end of the resource in the time domain. time domain or obtain the start and end time of the resource in the time domain.
[0112] In some feasible implementations, the base station device can notify the terminal device about the duration of the resource in the time domain without concession when using the first control information, and the terminal device can directly determine the duration of the resource in the time domain based on the first control information. It should be noted that the base station device indicating the duration of the resource in the time domain when using the first control information can be thought of as indicating a number of uphill link TTIs, or it can be thought of as indicating a number of subframes of ascent link, or can be thought of as indicating an amount of milliseconds. The terminal device can determine the duration of the resource in the time domain based on the indication of the first control information, and the operation is simple. During specific implementation, when the first control information is a CPDCCH, the base station device can introduce a new bit field in the CPDCCH to explicitly indicate the duration of the resource in the time domain. It should be understood that the resource in the domain
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60/111 of the time is continuous, and the resource in the time domain includes consecutive TTIs or subframes. Consecutive TTIs or subframes can mean that two adjacent TTIs or subframes are continuous; or they may mean that there is an idle gap (for example, an idle gap of a symbol or of some symbols) between two adjacent TTIs or subframes, and the idle gap is used to perform LBT.
[0113] Similarly, the base station device can also indicate the end of the resource in the time domain without concession to the terminal device when using the first control information. In this notification mode in which the base station device indicates the resource in the time domain without concession when using the first control information, the base station device can dynamically notify the terminal device about the duration of the resource in the time domain without concession with the cost of increasing notification signal overloads. For example, when an up link / down link TTI is a TTI with a length of 1 ms (ie, a subframe), a UL grant escalation delay is 4 ms, and a length of a burst of downlink sent by the base station in the unlicensed spectrum is a subframe, an idle gap between a DL and an UL (a time between a subframe at the end of the downlink burst and a subframe of the uplink link earlier staggered to the use a UL grant included in the downlink burst) is 3 ms. After 3 ms, the base station device can scale an uplink data channel when using the UL grant, and for this reason the duration of the resource in the non-grant time domain can be indicated as 3
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61/111 ms. Likewise, when a length of a downlink burst sent by the base station device in the unlicensed spectrum is two subframes, an idle gap between a DL and a UL is 2 ms, and the duration of the resource in the time domain without concession can be indicated as 2 ms.
[0114] In some feasible implementations, the base station device can notify the terminal device about the duration of the resource in the time domain without concession when using first higher layer signaling. The terminal device receives the first higher layer signaling before receiving the first control information, and sets the duration of the resource in the time domain when using the first higher layer signaling. The base station device sets the duration of the resource in the time domain without concession when using the first higher layer signaling, so that signaling overloads can be reduced. The first control information is used only to indicate the resource in the time domain without concession. Specifically, for the unlicensed spectrum, a new field of control signaling bits does not need to be introduced additionally. Similar to the implementation indicated above, the terminal device is activated, upon detecting the existence of the first control information, to send information of uplink data. Specifically, when the first control information is a CPDCCH, because the CPDCCH indicates that a current subframe or a next subframe is an end subframe, when the terminal device detects the CPDCCH, if the start time unit is a first subframe
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62/111 that comes just after the end subframe, the terminal device can determine that x subframes that come just after the end subframe are the resource in the time domain without concession, and x is the configured duration of the resource in the time domain. This notification mode is also applicable for a scenario in which the first control information is user specific control information or user group specific control information.
[0115] Optionally, the duration of the resource in the domain of time without concession provided in this embodiment of the present invention can be predefined. For example, the duration of the resource in the time domain without concession can be predefined as two subframes or two TTIs, three subframes or three TTIs or something like that. Specific duration can be determined based on an actual application scenario, and is not limited to this document.
[0116] Optionally, when determining the duration of the resource in the time domain, the terminal device can directly determine that the duration of the resource in the time domain is configured duration using the first highest layer signal, predefined duration or duration indicated by base station device when using the first control information. Alternatively, the terminal device determines that the time end of the resource in the time domain is obtained by adding the time of beginning of the resource in the time domain to the duration of the resource in the time domain. For example, when the start moment is a first subframe, denoted as subframe # m + l, which comes just after the burst end subframe
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63/111 downlink, and the duration is x subframes, the ending moment is subframe # m + x, and the resource in the time domain is the x subframes that come exactly after the end subframe. In other words, the duration configured when using the first highest layer signaling, the predefined duration or the duration indicated by the base station device when using the first control information corresponds to the length of time between the start time and the start time. end, and is equal to the actual duration of the resource in the time domain.
[0117] Optionally, when determining the duration of the resource in the time domain, the terminal device can determine that the duration of the resource in the time domain is obtained by subtracting the first time interval from the configured duration when using the first layer signaling high, the predefined duration or the duration indicated by the base station device when using the first control information. Alternatively, the terminal device determines that the end time of the resource in the time domain is obtained by adding an end time of the target time unit (or of a first TTI after the target time unit) to the duration of the resource in the domain. time. In this mode, because the target time unit is fixed, the end time which is the resource in the time domain and which is determined by the terminal device is not related to the first time interval, and is related only to the duration . The base station may not need to dynamically indicate the first time interval, but it uses a predefined mode or a higher layer signaling configuration mode. Therefore, this mode can also be
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64/111 considered as a way of determining the end time of the resource in the time domain, and the end time is configured when using the first highest layer signaling, predefined or indicated by the base station device when using the first information of control. For example, it is assumed that the first time interval is a time interval between an end limit of the end subframe and the start position corresponding to the start time unit. When the target time unit is the end subframe of the downlink burst, the start time is a first subframe, denoted as subframe # m + l, which comes just after the end subframe, and the duration is configured or predefined or indicated is x subframes, the first time interval is 0, the ending moment is subframe # m + x, and the resource in the time domain is the x subframes that come exactly after the end subframe. When the start time is a second subframe, denoted as subframe # m + 2, which comes just after the end subframe, and the configured or predefined or indicated duration is x subframes, the first time interval is a subframe, the end time is still subframe # m + x, and the resource in the time domain is the x-1 subframes starting from subframe # m + 2.
[0118] In some feasible implementations, the base station device can activate, when using the first control information, the terminal device to send or not send data of uphill link data without concession.
[0119] Optionally, activation information can be an independent bit in the first control information,
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65/111 or can be encoded together with information used to indicate the duration of the resource in the time domain without concession, and the activation information is used to activate one of two states in which the terminal device is to send and is not to send uplink data information without concession. When the first control information is used for activation when using an independent bit, an independent bit included in the first control information can be used for activation. Specifically, if the independent bit is 0, it indicates that the terminal device is not to be activated to send uphill data information. If the independent bit is 1, it indicates that the terminal device is to be activated to send uplink data information. Specifically, the terminal device is activated to send upward link data information without concession in at least one of the x subframes / TTIs that come just after the target time unit, or the terminal device is activated to send link data information. ascent without concession in at least one of the x subframes / TTIs starting from the start time unit, where x is indicated by the first control information; in other words, the first control information indicates the length of the resource in the time domain without concession; or x is predefined, or is configured when using the first highest layer signaling sent by the base station. The start time unit is determined by adding the target time unit to the first time slot, and the first time slot is indicated by the first control information, or the first time slot is predefined, or is configured
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66/111 when using second highest layer signaling sent by the base station.
[0120] Optionally, the terminal device can be activated by detecting the existence of the first control information. Specifically, when the first control information is a CPDCCH, the terminal device can determine the target time unit based on the detected CPDCCH. Specifically, the terminal device determines, based on the detected CPDCCH, that the current subframe or the next subframe is the end subframe. If the start time unit is a first subframe / TTI that comes after the end subframe, upon detecting the CPDCCH, the terminal device can send upward link data information without concession in at least one of the x subframes / TTIs that they come exactly after the target time unit, or the end device sends up link data information without concession in at least one of the x subframes / TTIs starting from the start time unit, where x is indicated by the first control information; in other words, the first control information indicates the length of the resource in the time domain without concession; or x is predefined or is configured when using the first highest layer signaling sent by the base station. The start time unit is determined by adding the target time unit to the first time interval, and the first time interval is indicated by the first control information, or the first time interval is predefined, or is configured when using the second one. higher layer signaling sent by the base station.
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67/111 [0121] Additionally, activation information can be encoded together with information used to indicate the duration of the resource in the time domain without concession. For example, the first control information can include a 2-bit bit field, and the 2-bit bit field is encoded to obtain four statuses including 00, 01, 10 and 11. The four statuses can indicate respectively that the duration of the resource in the time domain is 0, 1, 2 and 3, where 1, 2 and 3 correspond respectively to the cases in which the duration of the resource in the time domain is one, two and three upstream link TTIs / subframes of climb link. When the base station device indicates that the duration of the resource in the time domain without concession is equal to 0, after receiving the first control information, the terminal device can determine which resource in the time domain without concession is not indicated, or the terminal device is not to be activated to send a data channel without concession, and for this reason the terminal device must not send data of uphill link data without concession.
[0122] It should be noted that downlink control information is scrambled when using a cell specific RNTI (for example, a CC-RNTI) or a user specific RNTI, and the downlink control information includes a cyclic redundancy check bit field (English: Cyclic Redundancy Check, CRC) in addition to a valid control information bit field. The end device performs blind detection in a control channel area of a downlink subframe or downlink TTI when using a cell specific RNTI or RNTI
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68/111 user specific, and checks the CRC bit field. If the CRC check is successful, the terminal device determines that the downlink control information exists. In addition, the downlink link control information includes indication information for the terminal device. This notification mode is also applicable for a scenario in which the first control information is user specific control information or user group specific control information. Details are not described here.
[0123] In some feasible implementations, after receiving the first control information, the terminal device can determine the unit of time the resource starts in the time domain without concession based on the first control information. During specific implementation, the end device can determine the resource start time unit in the non-granting time domain in the following four modes: predefine the start time unit, indicate the start time unit when using the second layer signaling higher, explicitly indicate the start time unit when using the first control information and implicitly indicate the start time unit when using the first control information.
[0124] It should be noted that determining the resource start time unit in the time domain without concession by the terminal device includes determining a start / TTI subframe of the resource start in the time without concession and also includes determining a position of start corresponding to the start sub-frame / start TTI.
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69/111 [0125] It should be noted that, because the resource start time unit in the non-grant time domain is dynamic, the terminal device can determine the resource start time unit in the non-grant time domain based on the target time unit and the time interval between the start time unit and the target time unit, that is, the first time interval, or an offset (English: Offset) of the start time unit in relative to the target time unit. In other words, the start time unit is obtained by adding the target time unit to the first time interval. The target time unit can be determined by the terminal device based on the first detected control information, and can be a TTI (denoted as a target TTI) or a subframe (denoted as a target subframe).
[0126] The terminal device can determine the target time unit based on the first control information. Optionally, the target time unit can be obtained by detecting the existence of the first control information. Specifically, a target TTI / target subframe is a downlink TTI or subframe (i.e., the first downlink TTI) carrying the first control information, or a subframe in which the downlink TTI exists (if TTI is an sTTI). The terminal device performs monitoring (English: Monitor) or blind detection (English: Blind Detection) on the first control information, and if the terminal device has detected the first control information on a downlink link TTI / subframe, the TTI / downlink link subframe is the target TTI / target subframe. A way of defining the TTI
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70/111 target / target subframe is applicable for both licensed and unlicensed spectrum. Additionally, in some feasible implementations, for the unlicensed spectrum, the CPDCCH can exist only in the end subframe, or it can exist in the end subframe and a downlink subframe preceding the end subframe. For example, referring to figure 5, figure 5 is another schematic diagram of a time domain resource according to an embodiment of the present invention. When the first CPDCCH control information exists in the end subframe and the downlink link subframe preceding the end subframe, if the duration and / or unit time of the resource start in the time domain is or is indicated by the first information For control purposes, the target subframe (i.e., the target time unit) can be the downlink link subframe preceding the end subframe, as shown in (a) in figure 5, or it can be the end subframe, such as as shown in (b) in figure 5. In the two cases shown in (a) and (b) in figure 5, lengths of corresponding first time slots are also different because the target subframe is defined differently.
[0127] The terminal device can determine the target time unit based on the first control information. Optionally, the target time unit can be indicated by the first control information. Specifically, a target TTI / target subframe can be a last subframe or a last TTI of a downlink burst carrying the first control information, and it can exist only in the last subframe / last TTI, or it can
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71/111 exist in the last subframe / last TTI and in a subframe / TTI preceding the last subframe / last TTI. Therefore, the target TTI / target subframe cannot possibly be determined exactly by detecting existence. This definition mode is applicable for the unlicensed spectrum, and the terminal device can determine, by detecting different status of a bit field in the first control information, which subframe is the end subframe, and can additionally determine that the subframe target is the end subframe. For example, when the first control information is a CPDCCH, an existing CPDCCH includes the 4-bit control information Subframe configuration for LAA used to indicate a number of symbols occupied by the base station in the current / next subframe. Because the CPDCCH can exist only in the end subframe and in a subframe preceding the end subframe, and indication status of bit fields included in the two subframes are different, after detecting the CPDCCH in a subframe, the terminal device can determine whether the subframe is the end subframe or if a next subframe is the end subframe. This notification mode is also applicable for a scenario in which the first control information is user specific control information or user group specific control information.
[0128] It should be noted that the downlink burst provided in this embodiment of the present invention are consecutive downlink transmission time intervals (downlink subframes or consecutive downlink TTIs) in which the base station occupies
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72/111 one channel to perform sending, and two adjacent bursts of downlink are discontinuous. In the downlink burst in which the first control information exists, data information (a PDSCH downlink data channel) may exist, or data information may not exist. In other words, only one PDCCH is sent and PDSCH is not sent in the downlink burst, or the base station device sends only one UL lease. If the downlink burst includes at least one subframe, the subframe can be a complete subframe (ie 14 symbols) or a partial subframe (less than 14 symbols), and the partial subframe includes an initial partial subframe (English: Initial Partial Subframe), or a partial end subframe (English: End Partial Subframe).
[0129] In some feasible implementations, four methods in which the terminal device determines the unit of time the resource starts in the time domain without concession or the first time interval are specifically as follows.
[0130] Mode 1: The first time interval is a predefined time interval.
[0131] In some feasible implementations, the terminal device can determine the time unit on which the resource starts in the non-concession time based on the determined target time unit and the first predefined time interval. For example, the terminal device can determine, like the target subframe when detecting the existence of the first control information (in other words, if the first control information exists), a subframe in which the first control information is
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73/111 is detected, and determine a subframe after the target subframe as the resource start subframe in the time domain without concession, where an interval between the subframe after the target subframe and the target subframe is the first time interval. Optionally, the terminal device can determine the unit of time the resource starts in the time domain without concession based on the first predefined time interval and information that is included in the first control information and that is used to indicate the target / Target TTI. For example, when the first control information is a CPDCCH, and the CPDCCH can exist in two subframes (the end subframe and the subframe preceding the end subframe), the terminal device can determine the end subframe of the link burst. descent based on indication status of a bit field Subframe configuration for LAA included in CPDCCH, determine that the end subframe is the target subframe, and determine a subframe after the target subframe as the starting subframe of the resource in the domain of the time without concession, where an interval between the subframe after the target subframe and the target subframe is the first time interval. For example, when the first predefined time interval is a subframe, the end device determines, as the start subframe (that is, the unit of time of the resource's start in the time domain), a first subframe that comes just after the end subframe. This notification mode is also applicable for a scenario in which the first control information is user specific control information or user group specific control information.
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74/111 [0132] Mode 2: The first time interval is configured when using the second highest layer signaling sent by the base station device.
[0133] In some feasible implementations, when the first time slot is configured when using the second highest layer signaling sent by the base station device, a method in which the terminal device determines the unit's time of onset of the domain time without concession is similar to that in Mode 1, and the start subframe also needs to be determined based on the determined target subframe. The target subframe can be determined by detecting the existence of the first control information, or it can be determined by using information that is in the first control information and which is used to indicate the target subframe / target TTI, and details are not described again . A difference between Mode 1 and Mode 2 is that in Mode 2 the first time slot is configured based on the higher layer signaling sent by the base station device, and this makes it more flexible to determine the unit of time to start the resource in the time domain.
[0134] Mode 3: The first time interval or the start time unit is indicated by the first control information.
[0135] In some feasible implementations, the first time interval or the start time unit can be indicated by using a bit field included in the first control information. Additionally, when the first control information is used to indicate the first time interval, a mode in which the device
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75/111 terminal determines the start time based on the target subframe and the first time interval is similar to those in Mode 1 and Mode 2, and details are not described here again.
[0136] In some feasible implementations, when the first control information is used to indicate the duration of the resource in the time domain in addition to the first time interval or the start time unit, two independent bit fields can be used in first control information to indicate respectively the duration and unit of start time (or the first time interval) of the resource in the time domain (Mode 31), or a bit field can be used in the first control information to indicate together the duration and unit of start time (or the first time interval) of the resource in the time domain (Mode 3-2).
[0137] Mode 3-1: Two independent bit fields are used to respectively independently indicate the duration and unit of the start time (or the first time interval) of the resource in the time domain.
[0138] In some feasible implementations, in the first control information, a bit field used to indicate the start time unit of the resource in the time domain is independent of a bit field used to indicate the duration of the resource in the domain. time. To be specific, for the duration or for the unit of time the resource starts in the time domain, the terminal device can obtain, by going through all the statuses of a corresponding bit field in the first control information, all indication content included in the first information of
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76/111 control. All resource start time unit statuses in the time domain can be combined randomly with all resource length statuses in the time domain. For example, when the first control information is a CPDCCH, the CPDCCH includes 1-bit information used to indicate the start time unit (or the first time interval). In two statuses included in the information, a state of 0 indicates that the first time interval between the start subframe of the resource in the time domain and the end subframe of the downlink burst is a subframe (the start subframe is a first subframe that comes just after the end subframe), and a status 1 indicates that the first time interval between the resource start subframe in the time domain and the end subframe of the downlink burst is two subframes (the subframe start is a second subframe after the end subframe). In addition, CPDCCH additionally includes another 2-bit bit field used to indicate the length of the resource in the time domain, and four statuses obtained when encoding the 2-bit field can respectively indicate that the duration of the resource in the time domain is zero, one, two and three subframes. The terminal device can determine that the resource in the time domain includes time domain ranges of zero, one, two and three subframes starting from the start subframe or the target subframe. All possible start positions of the resource in the time domain can be obtained by scrolling through the 1-bit information indicating the start time unit (or the first time interval), and all possible lengths of the resource in the time domain
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77/111 can be obtained by traversing the 2-bit information. The two status units of the resource start time in the time domain can be combined randomly with the four status of the resource length in the time domain, and the combination can be indicated when using bit information in the CPDCCH. This notification mode is also applicable for a scenario in which the first control information is user specific control information or user group specific control information.
[0139] Mode 3-2: A bit field is used to jointly indicate the duration and unit of start time (or the first time interval) of the resource in the time domain. In the first control information, a bit field is used to indicate together the time unit onset of the resource in the time domain and the length of the resource in the time domain. To be specific, for at least one of the duration and unit of start time of the resource in the time domain, all bits in the total bit field are used to indicate valid status of the length and unit of start time of the resource in the time domain, and only a few selected bits cannot indicate valid information on the length or unit of time the resource starts in the time domain.
[0140] In some feasible implementations, redundancy can occur when two pieces of referral information are used independently for referral. For example, when the resource length in the time domain is 0, any status in the first time slot corresponds to user behavior, and is considered
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78/111 that the resource in the time domain is empty. When the length of the resource in the time domain is 3, the time interval (that is, the first time interval) between the start subframe of the resource in the time domain and the end subframe of the downlink burst can only be a subframe (a subframe over a time span greater than 4 from the end subframe can be scaled, and does not need to be indicated as a resource without concession). Therefore, some referral statuses can be reduced. For example, available lengths are zero, one, two and three subframes, and first available time slots are zero and one subframe, as shown in Table 1. Table 1 is a schematic table of the join indication corresponding to Mode 3- 2.
Table 1
Bit field Length(quantity ofsubframes) First break in(amountsubframes) timein 000 0 Out of stock 001 1 1 010 1 2 011 2 1 100 2 2 101 3 1 110 Out of stock Out of stock 111 Out of stock Out of stock
[0141] Unavailable shown in Table 1 indicates that there is no time resource (the terminal device is
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79/111 instructed not to send uphill link information without concession), 1 indicates that the first time slot is a subframe, and 2 indicates that the first time slot is two subframes. The same is true for a length indication mode, and details are not described again.
[0142] In addition, another advantage of jointly indicating the length and unit of time the resource starts in the time domain is that a resource in the discontinuous time domain can be indicated. For example, M subframes / TTIs correspond to M bits through bit mapping. For example, a maximum of three subframes after the first control information can be indicated as a resource in the time domain without concession (a subframe in a difference of a time interval greater than 4 from the end subframe can be scaled) , and a 3-bit bit mapping mode is shown in Table 2. Table 2 is another schematic table of the join indication corresponding to Mode 3-2. Available indicates that the resource in the time domain includes the subframe, and unavailable indicates that the resource in the time domain does not include the subframe. A bit state 001 indicates that the first time interval between the resource start subframe in the time domain and the downstream link burst end subframe is three subframes (including subframe #n, subframe # n + l, subframe # n + 2 and subframe # n + 3); in other words, a fourth subframe (subframe # n + 3) is available. Bit states 010 and 011 indicate that the first time interval is two subframes (including subframe #n and subframe # n + l); in
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In other words, a third subframe (subframe # n + 2) and the fourth subframe (subframe # n + 3) are available. Likewise, bit states 100, 101, 110 and 1H indicate that the first time slot is a subframe.
Table 2
Bit field Subframe# n + l Subframe# n + 2 Subframe# n + 3 000 Out of stock Out of stock Out of stock 001 Out of stock Out of stock Available 010 Out of stock Available Out of stock 011 Out of stock Available Available 100 Available Out of stock Out of stock 101 Available Out of stock Available 110 Available Available Out of stock 111 Available Available Available
[0143] Mode 4: The first time interval or the start time unit is indicated implicitly by the first control information.
[0144] In some feasible implementations, the first time interval or unit of time for starting the resource in the time domain without concession can be determined based on indication information included in the first control information. The indication information can include a number of symbols occupied by the base station device in the last subframe (or in the end subframe) or in the last TTI of the downlink burst carrying the first control information. Alternatively, the indication information can be used to indicate a number of symbols occupied by the base station device in the subframe
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81/111 current / next subframe or a current / next TTI. An issue to be considered when selecting the resource start time unit in the time domain without concession or the first time interval is to reserve a corresponding idle time off for a PUSCH to be transmitted on the resource in the time domain, to perform LBT. Because the time domain feature described in this embodiment of the present invention comes after the end subframe of the downlink burst, it is considered primarily if the end subframe includes an idle gap. If the base station device does not occupy all of the downlink symbols in the end subframe, in other words, the end subframe includes an idle gap, the resource start time unit in the time domain can be a first subframe which comes right after the end subframe, to improve resource usage in the time domain. If the base station device occupies all the downlink symbols in the end subframe, the time frame of the start of the resource in the time domain must be after an initial limit of a first subframe after the end subframe, for example For example, an intermediate symbol from the first subframe or a second subframe after the end subframe, to reserve an idle gap between the end subframe and the resource start time unit in the time domain to perform LBT.
[0145] It should be noted that, considering that in the unlicensed spectrum common control signaling has been used to indicate the end subframe and a number of symbols occupied by the station device
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82/111 base in the end subframe, the terminal device can determine the start subframe based on the number of symbols occupied by the base station device in the end subframe. If the terminal device determines that the base station device does not occupy all the downlink symbols in the end subframe, the terminal device can determine that the first time interval between the resource start subframe in the time domain and the subframe end point of the downlink burst is a subframe (the start subframe is a first subframe that comes just after the end subframe). If the end device determines that the base station device occupies all the downlink symbols in the end subframe, the first time interval between the resource start subframe in the time domain and the end subframe of the link burst descent is greater than a subframe, including: the start subframe is a second subframe that comes just after the end subframe; or the start subframe is a first subframe that comes just after that end subframe, and a start position corresponding to the start subframe is in a complete subframe in which the start subframe exists. For example, when the first control information is a CPDCCH, a new bit does not need to be added to an existing CPDCCH to indicate the start time unit (or the first time interval) of the resource in the time domain, and control information 4-bit (Subframe configuration for LAA) that is in the existing CPDCCH and that is used to indicate an amount of
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83/111 symbols occupied by the base station device in the current / next subframe can be reused.
[0146] In some feasible implementations, the first control information is not only used to indicate a number of symbols occupied in the current subframe and to indicate which subframe is the end subframe, but it can also be used to implicitly indicate the time unit of start of the resource in the time domain or the first time interval. When the first control information indicates that the number of symbols occupied in the end subframe is 14 or that all symbols in the end subframe are occupied, the first time interval between the resource start subframe in the time domain and the subframe end of the downlink burst is two subframes. For example, as shown in (b) in figure 6, figure 6 is another schematic diagram of a time domain resource according to an embodiment of the present invention. The time domain resource start subframe is a second subframe after the downlink burst end subframe. A subframe in an idle gap between the resource start subframe in the time domain and the end subframe of the downlink burst is used by the terminal device to perform LBT on a uplink data channel. When the number of symbols occupied in the end subframe is less than 14 or not all the symbols in the end subframe are occupied, for example, as shown in (a) in figure 6, the first time interval is a subframe; in other words, the resource start subframe in the domain of
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84/111 time is a first subframe that comes right after the end subframe. In this application scenario, the end device can perform LBT in an idle gap in the end subframe, and there is no need to reserve an idle gap of a subframe between the resource start subframe in the time domain and the end subframe of the downlink link burst. This notification mode is also applicable for a scenario in which the first control information is user specific control information or user group specific control information.
[0147] Additionally, in some feasible implementations, after determining the start subframe / start TTI of the resource in the time domain, the terminal device can additionally determine the start position corresponding to the start subframe / start TTI. Similarly, the start position can be predefined (Mode a). For example, the start position of the start subframe / start TTI is always at 0 ps at the start limit of the complete TTI / complete subframe in which the start subframe / start TTI exists (a position 1), or at 25 ps after the initial limit of the complete TTI / complete subframe in
what is the subframe of home / TTI in start exists (a position 2), or at 25 ps + TA after The limit initial of TTI complete / subframe complete at the which one the subframe in
start / start TTI exists (a position 3), or at the start of the second upward link symbol in the complete TTI / complete subframe in which the start subframe / start TTI exists (a symbol) (a position 4). Alternatively, the start position can be configured using layer signaling
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Highest 85/111 sent by the base station device (Mode b). In Mode b, available locations from the start position include the four positions described previously: position 1 to position 4, and details are not described again. Alternatively, the start position can be indicated explicitly by the first control information sent by the base station device (Mode c). In Mode c, available locations from the start position include the four positions described previously: position 1 to position 4, and details are not described here again. Alternatively, the start position can be indicated implicitly by a bit field which is included in the first control information sent by the base station device and which is used to indicate the number of symbols occupied in the end subframe of the downlink burst. (Mode d). In Mode d, when the number of symbols occupied in the end subframe is 14 or all symbols in the end subframe are occupied, the start position is at 25 ps or at a symbol or at 25 ps + TA (positions 2 to 4). When the number of symbols occupied in the end subframe is less than 14 or not all the symbols in the end subframe are occupied, the start position is at 0 ps (position 1).
[0148] It should be noted that a mode in which the terminal device determines the start / TTI subframe is independent of a mode in which the terminal device determines the start position, and any way of determining the start / TTI subframe start is combined with any way to determine the start position. When the start position is not at 0 ps, the terminal device
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86/111 can perform rate matching (English: Rate Matching) on the start / TTI start subframe, or directly reduce (English: Puncture) a time domain signal between the start / TTI start subframe and the start position. start, for example, a time domain signal corresponding to 25 ps, 25 ps + TA or a symbol. For example, the terminal device determines the start / TTI start subframe in a predefined mode or in a higher layer signaling configuration mode (Mode a or Mode b), and determines the start position by means of explicit indication or implicit indication when using the first control information (Mode c or Mode d). Alternatively, the terminal device determines the start / TTI start subframe by means of explicit indication or implicit indication when using the first control information (Mode c or Mode d), and determines the start position in a predefined mode or in a highest layer signaling configuration mode (Mode a or Mode b).
[0149] It should be noted that, in this embodiment of the present invention, the resource in the time domain without concession is dynamically indicated by the first control information and, although a resource in the time domain is also dynamically indicated by means of UL concession information. in stagger-based uphill link transmission (English: UL grant based), a difference from a staggered uphill link channel when using a UL grant is that, in this embodiment of the present invention, a resource in the closest time domain is indicated in a non-concession mode, or the first time interval (or an interval between a downlink link TTI in which the first
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87/111 control information exists and the unit of time the resource starts in the time domain without concession indicated by the first control information) is less than a minimum escalation delay of the UL concession-based escalation mode. The minimum escalation escalation delay based on UL concession is a time interval between a downlink link / downlink subframe in which the UL concession exists and an uplink link / uplink subframe corresponding to an upstream link channel that can be scaled when using the UL grant. The minimum scaling delay can be a second time slot provided in this embodiment of the present invention. The first downlink TTI can be a TTI carrying the UL grant, the uplink TTI corresponding to the earlier stepped up link channel when using the UL grant can be established as a target uplink TTI, and the second time interval is a time interval between the first downlink TTI and the target uplink TTI.
[0150] In this embodiment of the present invention, the time interval between the first downlink link TTI and the resource start time unit in the time domain without concession is less than the second time interval, so that use of feature can be improved, and uplink data transmission efficiency can be improved. It should be noted that if there is more than one stepped uplink channel when using the UL grant, or if a plurality of stepped uplink channels exists in a plurality of stepped link TTIs
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88/111 uphill, the target uphill link TTI corresponds to an uphill link channel earlier in these uphill link channels. For example, a minimum escalation delay (ie, a second time interval) between a scaled PUSCH when using a UL concession and a subframe / TTI in which the UL concession exists is four subframes / TTIs. In this embodiment of the present invention, the first time interval between the subframe / TTI in which the first control information exists and the unit of time of resource start in the time domain can be equal to one subframe / TTI, two subframes / TTIs or three subframes / TTIs. It should be understood that the minimum escalation delay in this modality is not specific to a nearest escalated link channel when using a UL concession in a specific escalation process, but is specific to a capacity of a higher uphill link channel. next that can be scaled by the base station device. For example, if a nearest PUSCH scaled when using a UL lease sent by the base station device in subframe #n exists in subframe # n + 5 at a time, but a capacity of a closer PUSCH that can be scaled by the base station is a PUSCH, in subframe # n + 4, which is scaled when using a UL grant in subframe #n, and the PUSCH in subframe # n + 4 can be scaled in another scaling process, and in this case, the minimum scaling delay is four subframes. Unlike the stagger-based uphill link transmission, the end device does not begin to perform packet encapsulation on an uphill link channel only after receiving the UL grant, but instead the
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89/111 terminal device performs packet encapsulation in advance. For example, the terminal device can perform packet encapsulation at any time after the terminal device has an uplink service, and the terminal device can immediately send a PUSCH after detecting the first control information.
[0151] It should be noted that the UL grant is used to stagger an uphill link channel and indicate a transport format of the uphill link channel, and the uphill link channel may be an uphill link service channel. (PUSCH) or an uphill link control channel (in the Multefire standard, an extended uphill link control channel (English: extended PUCCH, ePUCCH) can also be scaled when using the UL grant).
[0152] The transport format that is of the uplink channel and that is indicated by the UL concession includes at least one of the following:
a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink channel;
a modulation and coding scheme for the uplink channel; and a time interval between a downlink link TTI / subframe in which the UL concession exists and the scaled up link channel when using the UL concession.
[0153] The resource in the time domain occupied by the uplink channel includes at least one TTI.
[0154] Whereas a UL concession can be used to scale at least two TTIs, duration of one
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90/111 resource in the time domain can be determined based on a number of staggered TTIs when using the UL grant. A time interval between a downlink link TTI / subframe in which the UL concession exists and a scaled uplink channel includes a time interval between a TTI carrying the UL grant and a TTI loading the uplink channel ( or a first TTI on at least two staggered TTIs when using the UL grant), or a UL grant escalation delay. Considering that the time interval between the downlink link TTI / subframe in which the UL concession exists and the scaled uplink channel when using the UL concession may be greater than a minimum escalation delay, the UL concession may include information control indicating the delay schedule. A resource in the frequency domain occupied by the uplink channel indicated by the UL concession includes at least one physical resource block (English: Physical Resource Block, PRB).
[0155] It should be noted that the escalation delay is a time interval between the downlink link / downlink subframe carrying the UL grant sent by the base station device and a uplink link / link subframe TTI upstream loading the uplink data channel which is scaled when using the UL grant and which is sent by the terminal device. Considering a detection capability and a packet encapsulation capability of the terminal device, there is a requirement for a minimum scaling delay between the scaling-based uphill data channel and the UL grant, and the
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91/111 base station device can escalate an uphill link / uphill link subframe later than the minimum escalation delay. For example, when the minimum escalation delay is 4 ms, only one sublink frame (the subframe # n + 4) at a difference of a 4 ms interval from the subframe (the subframe #n) carrying the UL concession can be scaled when using a downlink control information format (DCI format) (DCI format) 0/4, and an uplink subframe (for example, the subframe # n + p, where p> 4 and p is an integer) over a gap greater than 4 ms from the subframe carrying the UL grant can be scaled when using a DCI 0A / 0B / 4A / 4B format, but a link TTI climb / climb link subframe earlier than the minimum escalation delay cannot be scaled. When a smallest TTI in a system is a 1 ms TTI or a subframe, the minimum scaling delay is 3 ms or 4 ms; in other words, a scaled uplink data channel when using a UL grant in subframe #n is in subframe # n + 3 or in subframe # n + 4. When a smallest TTI in a system is an sTTI, the minimum escalation delay is k up link sTTIs or down link sTTIs, where k is an integer equal to or greater than 4; in other words, a scaled uplink data channel when using a UL lease on sTTI #n is on sTTI # n + k.
[0156] It should be noted that, for escalation-based uphill link transmission, information related to a transport format of an uphill link data channel, including a time domain resource
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92/111 (in Mode 1, a time interval between a downlink TTI / subframe carrying a UL concession and a scaled PUSCH is predefined, for example, 4 ms, in which case the resource in the time domain is indicated implicitly In Mode 2, a time interval between a downlink link TTI / subframe carrying a UL concession and a scaled PUSCH is explicitly indicated by the UL concession), a feature in the frequency domain, a modulation and coding scheme (English: Modulation and Coding, MCS), transmission power adjustment, a demodulation reference signal (English: DeModulation Reference Signal, DMRS) on the PUSCH and more, is provided to the terminal device when using the UL grant. The terminal device performs packet encapsulation based on the transport format information indicated by the UL grant, and sends the PUSCH on the resource in the indicated time domain and the resource in the indicated frequency domain. However, for uphill link transmission without concession, the information included in the transport format of the uphill link data channel cannot be dynamically indicated by the base station when using the UL grant. A difference between the implementation provided in this embodiment of the present invention and the PUSCH that is scaled when using the UL grant is that the first control information is used to indicate only one resource in the time domain available to the terminal device, but at least one part of information, other than the resource in the time domain, related to the transport format corresponding to the uplink data channel sent by the terminal device is determined not based on the first control information.
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93/111
Specifically, at least a portion of other information related to the transport format of the uplink data channel can be predefined, or can be configured based on the third highest layer signal sent by the base station device.
[0157] S104. The terminal device sends data information on an uplink data channel.
[0158] S105. The base station device receives, on the uplink data channel, the data information sent by the terminal device.
[0159] In some feasible implementations, information related to a transport format of the uplink data channel includes at least one of the following:
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
a code sequence of a demodulation reference signal on the uplink data channel;
a transport block size (English: Transmission Block Size, TBS) loaded in the uplink data channel; and more.
[0160] In other words, all information regarding the transport format of the uphill link data channel: the PUSCH based on scheduling, is indicated by the same indication information (the UL concession), but some information (that is, resource in the time domain without
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94/111 concession) of the transport format of the uphill link data channel: the PUSCH without concession in this mode, is indicated by the first control information (that is, dynamic signaling) sent by the base station device, but other information is predefined, or other information is configured when using another signaling (for example, the third highest layer signaling sent by the base station device).
[0161] It should be noted that the resource in the frequency domain occupied by the uplink data channel includes at least one PRB, and the code sequence of the demodulation reference signal includes at least one of an orthogonal coverage code ( English: Orthogonal Cover Code, OCC) and a cyclic shift (English: Cyclic Shift, CS) from DMRS. Data sent from a Media Access Control (MAC) layer to a physical layer is organized in the form of a transport block (English: Transport Block, TB), and data information is loaded and sent in an uplink data channel in the form of a TB. A TBS is an amount of valid data information (data information that is not encoded) that is included in a TB corresponding to a resource in the specific frequency domain (which can be specifically an amount of PRBs) and a modulation scheme and specific coding. The terminal device can determine the TBS based on the resource in the frequency domain occupied by the uplink data channel and the modulation and encoding scheme, or can determine the TBS based on information that is predefined or that is configured when using the third highest layer signaling sent by the
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95/111 base station. For example, a TBS value is predefined, or is configured based on the third highest layer signal sent by the base station device. In this case, the information related to the transport format may not include MCS information.
[0162] It should be noted that an existing eLAA system supports two-stage scheduling (English: two-stage scheduling). The base station device sends scheduling information on a UL lease loaded on a downlink burst, but a scheduling delay is not a PUSCH delay relative to a subframe in which the UL concession exists, but a PUSCH in relation to a subframe in which a CPDCCH exists. After receiving only the UL grant, the terminal device does not send the PUSCH, and sends data information only after detecting the CPDCCH. The UL grant indicates a time interval between the PUSCH and the CPDCCH, and the CPDCCH activates data information on the PUSCH to be sent. In comparison to the two-stage scheduling solution, the first control information described in the implementation provided in this embodiment of the present invention is also used to indicate the resource in the time domain, but the resource in the time domain without concession (including parameters such as such as the length and time of onset of the resource in the time domain) described in this modality of the present invention can be indicated only by the first control information when compared to the CPDCCH in two-stage scheduling. However, in two-stage scheduling, the length of the resource in the time domain is indicated by other control information, that is, the UL concession, and the moment of beginning of the resource in the
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96/111 time domain is determined based on both the CPDCCH and the other control information, that is, the UL grant.
[0163] It should be noted that, when data information is sent in the unlicensed spectrum, if the terminal device determines to send uplink data information in at least one subframe or TTI in a time domain resource without concession, before sending an uphill link data channel, the terminal device must execute LBT on a carrier on which the uphill link data channel carrying the uphill link data information is located. The terminal device can immediately send the uplink data information upon detecting that the channel is idle, and a type of LBT includes a CCA based on random backoff and CCA of single slot. Details are not described here again.
[0164] In this embodiment of the present invention, the base station device can send the first control information to the terminal device, and indicate, when using the first control information, the resource without concession that is after the downlink link TTI or the downlink link subframe carrying the first control information. A time interval between the start TTI or the start subframe in the resource without concession indicated by the first control information and the downlink TTI or the downlink subframe is relatively small, and the terminal device can send information from uplink data on the resource without concession, so that resource use in the time domain is greater. In this embodiment of the present invention, the terminal device can send uplink data information at a time
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97/111 less than an escalation delay of an UL grant-based escalation mode, so that the efficiency of sending uplink data information can be improved, the uplink data information can be sent more flexibly and applicability is greater.
[0165] Referring to figure 7, figure 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. The terminal device provided in this embodiment of the present invention includes:
a receiving module 71, configured to receive first control information sent by a base station device in a first downlink transmission time slot;
a determination module 72, configured to determine a resource in the time domain based on the first control information received by the receiving module, where the resource in the time domain includes at least one uphill link transmission time interval, one unit of time the resource starts in the time domain is later than the first downlink transmission time slot, and the start time unit is a first uplink transmission time slot of at least one uplink transmission time interval; and a sending module 73, configured to send data information on an uplink data channel, where the uplink data channel corresponds to at least one uplink transmission time slot on the
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98/111 resource in the time domain determined by the determination module.
[0166] In some workable implementations, determination module 72 is configured to:
determine the start time unit based on the first control information received by the receiving module.
[0167] In some feasible implementations, determination module 72 is configured to:
determine a length of the resource in the time domain or an end time of the resource in the time domain based on the first control information received by the receiving module.
[0168] In some workable implementations, determination module 72 is configured to:
determine the start time unit based on the first control information received by the receiving module, and determine an end time of the resource in the time domain based on the start time unit and a length of the resource in the time domain ; where the length of the resource in the time domain is a predefined length or a length configured based on the first highest layer signal sent by the base station device.
[0169] In some feasible implementations, the first control information is used to indicate a number of symbols occupied by the base station device in a last subframe or in a last transmission time interval of a downlink burst, the burst. downlink link includes at least one interval
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99/111 consecutive downlink transmission time, and the at least one consecutive downlink transmission time interval includes the first downlink transmission time interval.
[0170] The determination module 72 is configured to:
determining the unit of start time based on the number of symbols.
[0171] In some workable implementations, the start time unit is later than a target time unit, and a time interval between the target time unit and the start time unit is a first time interval.
[0172] The target time unit is the first downlink link transmission time interval; or the target time unit is a subframe in which the first downlink transmission time slot exists; or the target time unit is a last subframe or last transmission time interval of a downlink burst, the downlink burst includes at least one consecutive downlink transmission time interval, and the hair at least one consecutive downlink transmission time slot includes the first downlink transmission time slot.
[0173] In some feasible implementations, determination module 72 is configured to:
determine the target time unit based on the first control information received by the receiving module; and
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100/111 determine the start time unit based on the target time unit and the first time interval.
[0174] The first time slot is a predefined time slot, or the first time slot is configured when using the second highest layer signaling sent by the base station device.
[0175] In some feasible implementations, the first control information is used to indicate the first time interval.
[0176] The determination module 72 is configured to:
determine the start time unit based on the first time interval and the target time unit.
[0177] In some feasible implementations, determination module 72 is additionally configured to: determine the target time unit based on the first control information received by the receiving module.
[0178] In some feasible implementations, a time interval between the first downlink transmission time slot and the start time unit is less than a second time slot, the second time slot is a time slot minimum between a second downlink transmission time slot and a target uplink transmission time slot, the second downlink transmission time slot loads the rising link lease, and the time slot target ascent link transmission corresponds to a staggered ascent link channel when using the ascent link grant.
Petition 870190084292, of 08/28/2019, p. 106/125
101/111 [0179] The uphill link lease is used to indicate a transport format of the uphill link channel; and the uplink channel transport format includes at least one of the following information:
a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel; and a time interval between the second downlink transmission time interval and the target uplink transmission time interval.
[0180] In some feasible implementations, the first control information is common control information.
[0181] In some feasible implementations, determination module 72 is additionally configured to: determine a transport format of the uphill data channel.
[0182] The transport format of the uphill data channel includes at least one of the following information:
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
Petition 870190084292, of 08/28/2019, p. 107/125
102/111 a code sequence of a demodulation reference signal on the uplink data channel; and a TBS transport block size loaded on the uplink data channel.
[0183] Any one to at least a piece of information included in the transport format of the uplink data channel is predefined information or information configured based on the third highest layer signal sent by the base station device.
[0184] In some feasible implementations, referring to figure 8, figure 8 is another schematic structural diagram of the terminal device according to this embodiment of the present invention. The terminal device provided in this embodiment of the present invention further includes:
a detection module 74, configured to: perform listening before speaking LBT on a carrier on which the uplink data channel is located, and detects that the channel is idle.
[0185] During specific implementation, the terminal device can execute, when using the modules incorporated in the terminal device, the implementation described in the modality previously exposed, and details are not described here.
[0186] Referring to figure 9, figure 9 is another schematic structural diagram of a terminal device according to an embodiment of the present invention. The terminal device provided in this embodiment of the present invention can include a memory 900 and a processor 910.
Petition 870190084292, of 08/28/2019, p. 108/125
103/111 [0187] Memory 900 is configured to store a set of program codes.
[0188] Processor 910 is configured to call the program code stored in memory, to perform the implementation described in the steps in the method of sending link upstream information, and details are not described here.
[0189] In this embodiment of the present invention, a base station device can send first control information to the terminal device, and indicate, when using the first control information, a resource without concession that is after a downlink link TTI or a downlink link subframe carrying the first control information. A time interval between a start TTI or a start subframe on the resource without concession indicated by the first control information and the downlink TTI or the downlink subframe is relatively small, and the terminal device can send information from uplink data on the resource without concession, so that resource use in the time domain is greater. In this embodiment of the present invention, the terminal device can send the uplink data information in a time less than a scheduling delay in a UL grant-based scheduling mode, so that efficiency of sending data information from the link ascent data can be improved, the data from the ascent link data can be sent more flexibly and applicability is greater.
[0190] Referring to figure 10, figure 10 is a schematic structural diagram of a station device
Petition 870190084292, of 08/28/2019, p. 109/125
104/111 base according to an embodiment of the present invention. The base station device provided in this embodiment of the present invention can include:
a sending module 91, configured to send first control information to a terminal device in a first downlink transmission time interval, where the first control information is used to indicate a resource in the time domain, the resource in the time domain includes at least one uplink transmission time slot, one time unit onset of the resource in the time domain is later than the first downlink transmission time slot, and the time unit start is a first uphill link transmission time slot of at least one uphill link transmission time slot; and a receiving module 92, configured to receive, on an uphill link data channel, data information sent by the terminal device, where the uphill link data channel corresponds to at least one link transmission time slot. rise in the resource in the time domain.
[0191] In some feasible implementations, the first control information is used to indicate the unit of start time.
[0192] In some feasible implementations, the first control information is used to indicate a length of the resource in the time domain or an end time of the resource in the time domain.
Petition 870190084292, of 08/28/2019, p. 110/125
105/111 [0193] In some feasible implementations, the first control information is used to indicate the unit of start time;
an end time of the resource in the time domain is obtained based on the start time unit and a length of the resource in the time domain; and the length of the resource in the time domain is a predefined length or a length configured based on the first highest layer signaling configured by the base station device for the terminal device.
[0194] In some feasible implementations, the first control information is used to indicate a number of symbols occupied by the base station device in a last subframe or in a last transmission time interval of a downlink burst, the burst. downlink link time includes at least one consecutive downlink transmission time slot, the at least one consecutive downlink transmission time slot includes the first downlink transmission time slot, and the amount of symbols is used to determine the unit of start time.
[0195] In some workable implementations, the start time unit is later than a target time unit, and a time interval between the target time unit and the start time unit is a first time interval.
[0196] The target time unit is the first downlink transmission time interval; or the target time unit is a subframe in which the first downlink transmission time slot exists; Or the
Petition 870190084292, of 08/28/2019, p. 111/125
106/111 target time unit is a last subframe or last transmission time interval of a downlink burst, the downlink burst includes at least one consecutive downlink transmission time interval, and the at least one consecutive downlink transmission time slot includes the first downlink transmission time slot.
[0197] In some feasible implementations, the first control information is used to indicate the target time unit;
the start time unit is obtained based on the target time unit and the first time interval; and the first time slot is a predefined time slot, or the first time slot is configured by using the second highest layer signaling configured by the base station device for the terminal device.
[0198] In some feasible implementations, the first control information is used to indicate the first time interval; and the start time unit is obtained based on the target time unit and the first time interval.
[0199] In some feasible implementations, the target time unit is indicated by the first control information.
[0200] In some feasible implementations, a time interval between the first downlink transmission time slot and the start time unit is less than a second time slot, the second time slot is a time slot minimum between one
Petition 870190084292, of 08/28/2019, p. 112/125
107/111 second downlink transmission time slot and target uplink transmission time slot, the second downlink transmission time slot carries the uplink link lease, and the time slot target ascent link transmission corresponds to a staggered ascent link channel when using the ascent link grant.
[0201] The uphill link concession is used to indicate a transport format of the uphill link channel; and the uplink channel transport format includes at least one of the following information:
a resource in the domain of the time occupied by the uplink channel;
a resource in the frequency domain occupied by the uplink data channel;
a modulation and coding scheme for the uplink data channel; and a time interval between the second downlink transmission time interval and the target uplink transmission time interval.
[0202] In some feasible implementations, the first control information is common control information.
[0203] In some feasible implementations, the transport format of the uplink data channel includes at least one of the following information:
a resource in the frequency domain occupied by the uplink data channel;
Petition 870190084292, of 08/28/2019, p. 113/125
108/111 a modulation and coding scheme for the uplink data channel;
transmission power of the uplink data channel;
a code sequence of a demodulation reference signal on the uplink data channel; and a TBS transport block size loaded on the uplink data channel.
[0204] Any of at least a piece of information included in the uplink data channel transport format is predefined information or information configured based on the third highest layer signal configured by the base station device for the device terminal.
[0205] During specific implementation, the base station device can perform, using the modules incorporated in the base station device, the implementation performed by the base station device in the descriptions of the modality exposed above, and details are not described here.
[0206] Referring to figure 11, figure 11 is another schematic structural diagram of a base station device according to an embodiment of the present invention. The base station device provided in this embodiment of the present invention can include a memory 110 and a processor 111.
[0207] Memory 110 is configured to store a set of program codes.
[0208] Processor 111 is configured to call the program code stored in memory, to execute the
Petition 870190084292, of 08/28/2019, p. 114/125
109/111 implementation described in the steps in the modality of method of receiving upward link information, and details are not described here.
[0209] In this embodiment of the present invention, the base station device can send first control information to a terminal device, and indicate, when using the first control information, a resource without concession that is after a downlink link TTI or a downlink link subframe carrying the first control information. A time interval between a start TTI or a start subframe on the resource without concession indicated by the first control information and the downlink TTI or the downlink subframe is relatively small, and the terminal device can send information from uplink data on the resource without concession, so that resource use in the time domain is greater. In this embodiment of the present invention, the terminal device can send the uplink data information in a time less than a scheduling delay in a UL grant-based scheduling mode, so that efficiency of sending data information from the link ascent data can be improved, the data from the ascent link data can be sent more flexibly and applicability is greater.
[0210] Referring to figure 12, figure 12 is a schematic structural diagram of an uphill link information processing system according to an embodiment of the present invention. The system provided in this embodiment of the present invention can include a
Petition 870190084292, of 08/28/2019, p. 115/125
110/111 terminal device 120 and a base station device 121.
[0211] During specific implementation, the terminal device and the base station device can perform the implementation described in the steps in the modalities set out above, and details are not described here.
[0212] In this embodiment of the present invention, the base station device can send first control information to the terminal device, and indicate, when using the first control information, a resource without concession that is after a downlink link TTI or a downlink link subframe carrying the first control information. A time interval between a start TTI or a start subframe on the resource without concession indicated by the first control information and the downlink TTI or the downlink subframe is relatively small, and the terminal device can send information from uplink data on the resource without concession, so that resource use in the time domain is greater. In this embodiment of the present invention, the terminal device can send the uplink data information in a time less than a scheduling delay in a UL grant-based scheduling mode, so that efficiency of sending data information from the link ascent data can be improved, the data from the ascent link data can be sent more flexibly and applicability is greater.
[0213] A person of ordinary skill in the art can understand that all or some of the method methods in the modalities can be implemented through a
Petition 870190084292, of 08/28/2019, p. 116/125
111/111 computer program instructing pertinent hardware. The program can be stored on a computer-readable storage medium. When the program is executed, the method processes in the modalities are executed. The storage media indicated above can be a magnetic disk, an optical disk, a read-only memory (Ready-Only Memory, ROM), a random access memory (Random Access Memory, RAM) or the like.
[0214] What has been revealed above are merely exemplary modalities of the present invention, and it certainly is not intended to limit the scope of protection of the present invention. Therefore, equivalent variations made according to the claims of the present invention are within the scope of the present invention.

权利要求:
Claims (21)
[1]
1. Method of sending upward link information, characterized by the fact that it comprises:
receiving (S102), by a terminal device, common control information sent by a base station device in a first downlink transmission time interval;
determine (S103), by the terminal device, a resource in the time domain without concession that is used for transmission without concession by the terminal device based on the common control information, in which the resource in the time domain without concession comprises at least one interval of consecutive uplink transmission time, a unit start time resource in the non-grant time domain is later than the first downlink transmission time interval, and the start time unit is a first uplink transmission time interval of at least one uplink transmission time interval; and sending (S104), through the terminal device, data information in an uphill link data channel, in which the uphill link data channel corresponds to at least one uphill link transmission time interval in the resource at domain of time without concession.
[2]
2/8 determine, by the terminal device, the start time unit based on the common control information; where the start time unit is a first transmission time slot that comes just after a target transmission time slot, the target transmission time slot is a last transmission time slot of a link burst. descent carrying the common control information, the descent link burst comprises at least one consecutive descent link transmission time interval in which the base station occupies a channel to perform sending.
2. Method, according to claim 1, characterized by the fact that determining, by the terminal device, a resource in the time domain without concession that is used for transmission without concession by the terminal device based on the common control information comprises:
Petition 870190084294, of 08/28/2019, p. 7/15
[3]
3/8 execute, by the terminal device, listen before speaking LBT on a carrier in which the uplink data channel is located, and detect that the channel is idle.
3. Method, according to claim 1, characterized by the fact that determining, by the terminal device, a resource in the time domain without concession that is used for transmission without concession by the terminal device based on the common control information comprises:
determine, by the terminal device, a length of the resource in the time domain without concession based on the common control information, the resource in the time domain without concession are x subframes that come exactly after the target transmission time interval.
[4]
4/8 concession which is used for transmission without concession by the terminal device comprises:
common control information is used to indicate the unit of start time; where the start time unit is a first transmission time slot that comes just after a target transmission time slot, the target transmission time slot is a last transmission time slot of a link burst. descent carrying the common control information, the descent link burst comprises at least one consecutive descent link transmission time interval in which the base station occupies a channel to perform sending.
4. Method according to any one of claims 1 to 3, characterized by the fact that the resource in the time domain without concession is indicated by the common control information.
[5]
5/8 base station in a first downlink transmission time slot;
a determination module (72) configured to determine a resource in the time domain without concession that is used for transmission without concession by the terminal device based on the common control information received by the receiving module, where the resource in the time domain no concession comprises at least one consecutive uphill link transmission time slot, a time domain resource start time unit is later than the first downlink transmission time slot, and the time unit start is a first uphill link transmission time slot of at least one uphill link transmission time slot; and a sending module (73), configured to send data information on an uplink data channel, where the uplink data channel corresponds to at least one uplink transmission time slot in the resource in the time domain without concession determined by the determination module.
Method according to any one of claims 1 to 4, characterized by the fact that, before sending, by the terminal device, data information in an uplink data channel, additionally comprises:
Petition 870190084294, of 08/28/2019, p. 8/15
[6]
6/8 transmission time of a downlink burst carrying common control information, the downlink burst comprises at least one consecutive downlink transmission time interval in which the base station occupies a channel for perform upload.
6. Method of receiving upward link information, characterized by the fact that it comprises:
send (S101), through a base station device, common control information to a terminal device in a first downlink transmission time slot, where the common control information is used to indicate a resource in the time domain no concession which is used for transmission without concession by the terminal device, the resource in the non-concession time domain comprises at least one consecutive uphill link transmission time interval, a unit of time for the beginning of the resource in the non-concession time domain it is later than the first downlink transmission time slot, and the start time unit is a first uplink transmission time slot of the at least one uplink transmission time slot; and receiving (S105), by the base station device in an uplink data channel, data information sent by the terminal device, in which the uplink data channel corresponds to at least one transmission time interval. link up in the resource in the time domain without concession.
[7]
7/8 descent, where common control information is used to indicate a resource in the non-concession time domain that is used for transmission without concession by the terminal device, the resource in the non-concession time domain comprises at least one time interval of consecutive uphill link transmission, a unit start time of the resource in the non-concession time domain is later than the first downlink link transmission time interval, and the start time unit is a first interval of time uphill link transmission time of at least one uphill link transmission time interval; and a receiving module (92), configured to receive, in an uphill link data channel, data information sent by the terminal device, in which the uphill link data channel corresponds to at least one time interval. link upstream transmission in the resource in the time domain without concession.
7. Method, according to claim 6, characterized by the fact that the common control information is used to indicate a resource in the time domain without
Petition 870190084294, of 08/28/2019, p. 9/15
[8]
8/8
8. Method according to claim 6, characterized by the fact that common control information is used to indicate a resource in the time domain without concession that is used for transmission without concession by the terminal device comprises:
common control information is used to indicate a resource length in the non-concession time domain, the resource in the non-concession time domain is x subframes that come just after the target transmission time interval.
[9]
9. Method according to any one of claims 6 to 8, characterized by the fact that the resource in the time domain without concession is indicated by the common control information.
[10]
10. Terminal device, characterized by the fact that it comprises:
a receiving module (71), configured to receive common control information sent by a
Petition 870190084294, of 08/28/2019, p. 10/15
[11]
11. Terminal device according to claim 10, characterized by the fact that the determination module (72) is configured for:
determining the unit of start time based on the common control information received by the receiving module; where the start time unit is a first transmission time interval that comes just after a target transmission time interval, the target transmission time interval is a last interval
Petition 870190084294, of 08/28/2019, p. 11/15
[12]
12. Terminal device according to claim 10, characterized by the fact that the determination module (72) is configured for:
determine a length of the resource in the time domain without concession based on the common control information received by the receiving module, the resource in the time domain without concession are x subframes that come exactly after the target transmission time interval.
[13]
13. Terminal device according to any one of claims 10 to 12, characterized by the fact that the resource in the time domain without concession is indicated by the common control information.
[14]
14. Terminal device according to any one of claims 10 to 13, characterized in that it comprises:
a detection module (74), configured to: before the sending module sends data information on the uplink data channel, perform listening before speaking LBT on a carrier on which the uplink data channel is located, and detect that the channel is idle.
[15]
15. Base station device, characterized by the fact that it comprises:
a sending module (91), configured to send common control information to a terminal device in a first link link transmission time slot
Petition 870190084294, of 08/28/2019, p. 12/15
[16]
16. Base station device according to claim 15, characterized by the fact that the common control information is used to indicate the start time unit; where the start time unit is a first transmission time slot that comes just after a target transmission time slot, the target transmission time slot is a last transmission time slot of a link burst. descent carrying the common control information, the descent link burst comprises at least one consecutive descent link transmission time interval in which the base station occupies a channel to perform sending.
Petition 870190084294, of 08/28/2019, p. 13/15
[17]
17. Device for station basis of wake up with The claim 15 or 16, character used by fact of what The control information common is used to indicate one
length of the resource in the time domain without concession, the resource in the time domain without concession are x subframes that come exactly after the target transmission time interval.
[18]
18. Base station device according to any one of claims 15 to 17, characterized by the fact that the resource in the time domain without concession is indicated by the common control information.
[19]
19. Uplink information processing system, characterized by the fact that it comprises the terminal device (120) as defined in any of claims 10 to 14 and the base station device (121) as defined in any of the claims 15 to 18.
[20]
20. Computer-readable storage media, characterized by the fact that it comprises instructions that, when executed by a computer, induce the computer to execute the method as defined in any of claims 1 to 5.
[21]
21. Computer-readable storage media, characterized by the fact that it comprises instructions that, when executed by a computer, induce the computer to execute the method as defined in any of claims 6 to 9.

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法律状态:
2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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CN201611118291.XA|CN108174445B|2016-12-07|2016-12-07|Method and device for processing uplink information|

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PCT/CN2017/115035|WO2018103702A1|2016-12-07|2017-12-07|Uplink information processing method and device|

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