WO2020156214A1 - Procédé de commande de puissance et dispositif terminal - Google Patents

Procédé de commande de puissance et dispositif terminal Download PDF

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Publication number
WO2020156214A1
WO2020156214A1 PCT/CN2020/072548 CN2020072548W WO2020156214A1 WO 2020156214 A1 WO2020156214 A1 WO 2020156214A1 CN 2020072548 W CN2020072548 W CN 2020072548W WO 2020156214 A1 WO2020156214 A1 WO 2020156214A1
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WIPO (PCT)
Prior art keywords
terminal device
channel
feedback
information
parameter
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PCT/CN2020/072548
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English (en)
Chinese (zh)
Inventor
刘哲
张兴炜
黎超
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华为技术有限公司
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Publication of WO2020156214A1 publication Critical patent/WO2020156214A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of communication technology, and in particular to a power control method and terminal equipment.
  • V2X communication refers to the communication between the vehicle and anything outside, including vehicle-to-vehicle communication (V2V), vehicle-to-pedestrian communication (V2P), and vehicle-to-infrastructure communication ( vehicle to infrastructure, V2I), vehicle to network communication (V2N).
  • V2V vehicle-to-vehicle communication
  • V2P vehicle-to-pedestrian communication
  • V2I vehicle-to-infrastructure communication
  • V2N vehicle to network communication
  • V2X communication is aimed at high-speed devices represented by vehicles. It is the basic and key technology applied in scenarios with very high communication delay requirements in the future, such as smart cars, autonomous driving, and intelligent transportation systems.
  • vehicle users can send some of their own information, such as position, speed, intention (turning, merging, and reversing), periodically and information triggered by some non-periodical events to surrounding vehicle users, similarly Vehicle users can also receive information from surrounding users in real time.
  • the service type that LTE-V2X mainly faces is broadcast messages, without hybrid automatic repeat request (HARQ) feedback, channel state information (channel state information, CSI) feedback, and so on.
  • HARQ hybrid automatic repeat request
  • channel state information channel state information, CSI
  • This application provides a power control method and terminal equipment, which can reasonably control the transmit power of different channels.
  • an embodiment of the present application provides a power control method, including: a first terminal device determines a transmission power of a data channel; wherein the data channel includes first information, and the first information includes feedback information; The first terminal device sends the feedback information to the second terminal device with the transmission power of the data channel.
  • the embodiment of the present application when the time-frequency domain resources of the data channel and the feedback channel overlap, the feedback information can be sent along with the data channel. Therefore, the embodiment of the present application improves the transmission power of the data channel, so that in this case The allocation of the transmit power of the data channel is more accurate.
  • the transmission power of the data channel is determined according to the maximum transmission power, the bandwidth of the data channel, and the first adjustment parameter; or, the transmission power of the data channel is determined according to the The maximum transmission power, the bandwidth of the data channel, the bandwidth of the control channel, and the first adjustment parameter are determined.
  • the first adjustment parameter may be understood as a parameter that can adjust the transmission power of the data channel, and the first adjustment parameter may be a parameter related to feedback information, thereby enabling the terminal device to allocate the transmission power of the data channel.
  • the transmission power of the data channel can be adjusted according to the actual information transmitted in the data channel, so as to further improve the accuracy of the transmission power of the data channel.
  • the first adjustment parameter is determined according to the first sub-parameter and the second sub-parameter, and the first sub-parameter is related to the adjustment and coding strategy MCS
  • the second sub-parameter is a parameter related to the number of resource unit REs of the data channel and the size of an encoding block, or the second sub-parameter is a parameter related to the number of REs of the data channel and the feedback Parameters related to the number of bits of information.
  • the first adjustment parameter is determined according to the first sub-parameter, the second sub-parameter, and the third sub-parameter, and the first sub-parameter is and adjustment A parameter related to the coding strategy MCS, the second sub-parameter is a parameter related to the number of resource units RE of the data channel and the size of the coding block, or the second sub-parameter is a RE related to the data channel A parameter related to the number and the number of bits of the feedback information, and the third sub-parameter is an offset parameter related to the number of bits of the feedback information.
  • the feedback information includes hybrid automatic repeat request HARQ information, or the feedback information includes reference information, or the feedback information includes Including the HARQ information and the reference information; wherein the reference information includes the information between the first terminal device and the second terminal device, and/or, the difference between the first terminal device and the network device Between the information.
  • the reference information includes reference state information between the first terminal device and the second terminal device, reference signal received power, and reference signal One or more items of reception quality and path loss information between the first terminal device and the second terminal device.
  • the reference information includes distance-related information.
  • the distance-related information includes distance information between the first terminal device and the network device, and the distance between the first terminal device and the One or more of the distance information between the second terminal devices, the communication distance information covered by the first terminal device, and the feedback information that the first terminal device is within the coverage of the network device.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmit power of the data channel
  • the P CMAX is the maximum transmit power
  • the f 1 (M 1 ) is a function of the bandwidth M 1 of the data channel
  • the PL is an estimated path loss value
  • the ⁇ is the first adjustment parameter.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmission power of the data channel
  • the P CMAX is the maximum transmission power
  • the f 2 (M 1 + M 2 ) and the f 3 (M 1 + M 2 ) are respectively Is a function of the bandwidth M 1 of the data channel and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is The first adjustment parameter.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmission power of the data channel
  • the P CMAX is the maximum transmission power
  • the f 3 (M 1 + M 2 ) and the f 4 (M 1 + M 2 ) are respectively Is a function of the bandwidth M 1 of the data channel and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is The first adjustment parameter.
  • an embodiment of the present application also provides a power control method, including: a first terminal device determines the transmit power of a feedback channel; wherein the feedback channel and the data channel overlap both in time domain and frequency domain, Alternatively, the feedback channel and the data channel have frequency domain overlap and no time domain overlap, or, the feedback channel and the data channel have time domain overlap and no frequency domain overlap; the first terminal device uses the The transmit power of the feedback channel sends feedback information to the second terminal device.
  • the multiplexing mode between the feedback channel and the data channel may include multiple possibilities (that is, different frame structures).
  • the feedback channel may overlap with the data channel in both time domain and frequency domain, or as feedback
  • the channel may overlap the data channel in the frequency domain but no time domain overlap.
  • the feedback channel may overlap the data channel in the time domain but no frequency domain overlap.
  • Different multiplexing methods correspond to different transmission powers, so the terminal equipment can be based on One of a variety of possibilities is used to determine the transmission power of the feedback channel, which avoids adopting a method to determine the transmission power of the feedback channel in all cases, thereby effectively improving the accuracy of determining the transmission power of the feedback channel. Control the transmit power of the feedback channel reasonably.
  • the transmit power of the feedback channel is based on the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the data channel, the difference between the feedback channel and the data channel
  • the power difference and the second adjustment parameter are determined; or, the transmit power of the feedback channel is determined according to the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the control channel, and the power difference between the feedback channel and the control channel
  • the value and the second adjustment parameter are determined.
  • the transmission power of the feedback channel may be determined according to different frame structures.
  • the second adjustment parameter is configured by higher layer signaling, or the second adjustment parameter is predefined.
  • the second adjustment parameter is related to the number of bits of the feedback information and the number of resource elements RE of the feedback channel.
  • the power difference between the feedback channel and the data channel is predefined, or the power difference between the feedback channel and the data channel The value is indicated by the control information; or, the power difference between the feedback channel and the data channel is configured by higher layer signaling; the power difference between the feedback channel and the control channel is predefined, or the feedback The power difference between the channel and the control channel is indicated by the control information; or, the power difference between the feedback channel and the control channel is configured by the high-level signaling.
  • the feedback information includes hybrid automatic repeat request HARQ information, or the feedback information includes reference information, or the feedback information includes Including the HARQ information and the reference information; wherein the reference information includes the information between the first terminal device and the second terminal device, and/or, the difference between the first terminal device and the network device Between the information.
  • the reference information includes reference state information between the first terminal device and the second terminal device, reference signal received power, and reference signal One or more items of reception quality and path loss information between the first terminal device and the second terminal device.
  • the reference information includes distance-related information.
  • the distance-related information includes distance information between the first terminal device and the network device, and the distance between the first terminal device and the One or more of the distance information between the second terminal devices, the communication distance information covered by the first terminal device, and the feedback information that the first terminal device is within the coverage of the network device.
  • the transmit power of the feedback channel satisfies the following formula:
  • the P 2 is the transmission power of the feedback channel
  • the P CMAX is the maximum transmission power
  • the f 5 (M 1 + M 3 ) and the f 6 (M 1 + M 3 ) are respectively M is the bandwidth of the data channel 1, the feedback bandwidth of the channel M 3 and the function of the power difference of the feedback channel and the data channel
  • the P O is the target received power of the second terminal device
  • the PL is an estimated path loss value
  • the ⁇ is the second adjustment parameter.
  • the transmit power of the feedback channel satisfies the following formula:
  • the P 2 is the transmission power of the feedback channel
  • the P CMAX is the maximum transmission power
  • the f 7 (M 2 + M 3 ) and the f 8 (M 2 + M 3 ) are respectively the channel bandwidth is M 2, M 3, and the bandwidth of the feedback function of the power difference of the feedback channel and the control channel of the channel
  • the P O is the target received power of the second terminal device
  • the PL is an estimated path loss value
  • the ⁇ is the second adjustment parameter.
  • an embodiment of the present application provides a power control device, including: a processing unit configured to determine the transmission power of a data channel; wherein the data channel includes first information, and the first information includes feedback information The sending unit is used to send the feedback information to the second terminal device with the transmission power of the data channel.
  • the transmission power of the data channel is determined according to the maximum transmission power, the bandwidth of the data channel, and the first adjustment parameter; or, the transmission power of the data channel is determined according to the The maximum transmission power, the bandwidth of the data channel, the bandwidth of the control channel, and the first adjustment parameter are determined.
  • the first adjustment parameter is determined according to the first sub-parameter and the second sub-parameter, and the first sub-parameter is related to the adjustment and coding strategy MCS
  • the second sub-parameter is a parameter related to the number of resource unit REs of the data channel and the size of an encoding block, or the second sub-parameter is a parameter related to the number of REs of the data channel and the feedback Parameters related to the number of bits of information.
  • the first adjustment parameter is determined according to the first sub-parameter, the second sub-parameter, and the third sub-parameter, and the first sub-parameter is and adjustment A parameter related to the coding strategy MCS
  • the second sub-parameter is a parameter related to the number of resource units RE of the data channel and the size of the coding block
  • the second sub-parameter is a RE related to the data channel
  • the third sub-parameter is an offset parameter related to the number of bits of the feedback information.
  • the feedback information includes hybrid automatic repeat request HARQ information, or the feedback information includes reference information, or the feedback information includes Including the HARQ information and the reference information; wherein the reference information includes the information between the first terminal device and the second terminal device, and/or, the difference between the first terminal device and the network device Between the information.
  • the reference information includes reference state information between the first terminal device and the second terminal device, reference signal received power, and reference signal One or more items of reception quality and path loss information between the first terminal device and the second terminal device.
  • the reference information includes distance-related information.
  • the distance-related information includes distance information between the first terminal device and the network device, and the distance between the first terminal device and the One or more of the distance information between the second terminal devices, the communication distance information covered by the first terminal device, and the feedback information that the first terminal device is within the coverage of the network device.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmit power of the data channel
  • the P CMAX is the maximum transmit power
  • the f 1 (M 1 ) is a function of the bandwidth M 1 of the data channel
  • the PL is an estimated path loss value
  • the ⁇ is the first adjustment parameter.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmission power of the data channel
  • the P CMAX is the maximum transmission power
  • the f 2 (M 1 + M 2 ) and the f 3 (M 1 + M 2 ) are respectively Is a function of the bandwidth M 1 of the data channel and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is The first adjustment parameter.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmission power of the data channel
  • the P CMAX is the maximum transmission power
  • the f 3 (M 1 + M 2 ) and the f 4 (M 1 + M 2 ) are respectively Is a function of the bandwidth M 1 of the data channel and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is The first adjustment parameter.
  • an embodiment of the present application also provides a power control device, including: a processing unit, configured to determine the transmission power of the feedback channel; wherein the feedback channel and the data channel overlap both in time domain and frequency domain. , Or, the feedback channel and the data channel have frequency domain overlap and no time domain overlap, or, the feedback channel and the data channel have time domain overlap and no frequency domain overlap; the sending unit is configured to use the The transmit power of the feedback channel sends feedback information to the second terminal device.
  • the transmit power of the feedback channel is based on the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the data channel, and the relationship between the feedback channel and the data channel.
  • the power difference and the second adjustment parameter are determined; or, the transmit power of the feedback channel is determined according to the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the control channel, and the power difference between the feedback channel and the control channel.
  • the value and the second adjustment parameter are determined.
  • the second adjustment parameter is configured by higher layer signaling, or the second adjustment parameter is predefined.
  • the second adjustment parameter is related to the number of bits of the feedback information and the number of resource elements RE of the feedback channel.
  • the power difference between the feedback channel and the data channel is predefined, or the power difference between the feedback channel and the data channel The value is indicated by the control information; or, the power difference between the feedback channel and the data channel is configured by higher layer signaling; the power difference between the feedback channel and the control channel is predefined, or the feedback The power difference between the channel and the control channel is indicated by the control information; or, the power difference between the feedback channel and the control channel is configured by the high-level signaling.
  • the feedback information includes hybrid automatic repeat request HARQ information, or the feedback information includes reference information, or the feedback information includes Including the HARQ information and the reference information; wherein the reference information includes the information between the first terminal device and the second terminal device, and/or, the difference between the first terminal device and the network device Between the information.
  • the reference information includes reference state information between the first terminal device and the second terminal device, reference signal received power, and reference signal One or more items of reception quality and path loss information between the first terminal device and the second terminal device.
  • the reference information includes distance-related information.
  • the distance-related information includes distance information between the first terminal device and the network device, and the distance between the first terminal device and the One or more of the distance information between the second terminal devices, the communication distance information covered by the first terminal device, and the feedback information that the first terminal device is within the coverage of the network device.
  • the transmit power of the feedback channel satisfies the following formula:
  • the P 2 is the transmission power of the feedback channel
  • the P CMAX is the maximum transmission power
  • the f 5 (M 1 + M 3 ) and the f 6 (M 1 + M 3 ) are respectively M is the bandwidth of the data channel 1, the feedback bandwidth of the channel M 3 and the function of the power difference of the feedback channel and the data channel
  • the P O is the target received power of the second terminal device
  • the PL is an estimated path loss value
  • the ⁇ is the second adjustment parameter.
  • the transmit power of the feedback channel satisfies the following formula:
  • the P 2 is the transmission power of the feedback channel
  • the P CMAX is the maximum transmission power
  • the f 7 (M 2 + M 3 ) and the f 8 (M 2 + M 3 ) are respectively the channel bandwidth is M 2, M 3, and the bandwidth of the feedback function of the power difference of the feedback channel and the control channel of the channel
  • the P O is the target received power of the second terminal device
  • the PL is an estimated path loss value
  • the ⁇ is the second adjustment parameter.
  • an embodiment of the present application provides a terminal device, the terminal device is used as a first terminal device, the first terminal device includes a processor, a memory, and a transceiver, and the processor is coupled to the memory , The processor is configured to determine the transmit power of a data channel; wherein the data channel includes first information, and the first information includes feedback information; the transceiver is coupled with the processor, and the transceiver The device is configured to send the feedback information to the second terminal device with the transmission power of the data channel.
  • the transmission power of the data channel is determined according to the maximum transmission power, the bandwidth of the data channel, and the first adjustment parameter; or, the transmission power of the data channel is determined according to the The maximum transmission power, the bandwidth of the data channel, the bandwidth of the control channel, and the first adjustment parameter are determined.
  • the first adjustment parameter is determined according to the first sub-parameter and the second sub-parameter, and the first sub-parameter is related to the adjustment and coding strategy MCS
  • the second sub-parameter is a parameter related to the number of resource unit REs of the data channel and the size of an encoding block, or the second sub-parameter is a parameter related to the number of REs of the data channel and the feedback Parameters related to the number of bits of information.
  • the first adjustment parameter is determined according to the first sub-parameter, the second sub-parameter, and the third sub-parameter, and the first sub-parameter is and adjustment A parameter related to the coding strategy MCS
  • the second sub-parameter is a parameter related to the number of resource units RE of the data channel and the size of the coding block
  • the second sub-parameter is a RE related to the data channel
  • the third sub-parameter is an offset parameter related to the number of bits of the feedback information.
  • the feedback information includes hybrid automatic repeat request HARQ information, or the feedback information includes reference information, or the feedback information includes Including the HARQ information and the reference information; wherein the reference information includes the information between the first terminal device and the second terminal device, and/or, the difference between the first terminal device and the network device Between the information.
  • the reference information includes reference state information between the first terminal device and the second terminal device, reference signal received power, and reference signal One or more items of reception quality and path loss information between the first terminal device and the second terminal device.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmit power of the data channel
  • the P CMAX is the maximum transmit power
  • the f 1 (M 1 ) is a function of the bandwidth M 1 of the data channel
  • the PL is an estimated path loss value
  • the ⁇ is the first adjustment parameter.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmission power of the data channel
  • the P CMAX is the maximum transmission power
  • the f 2 (M 1 + M 2 ) and the f 3 (M 1 + M 2 ) are respectively Is a function of the bandwidth M 1 of the data channel and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is The first adjustment parameter.
  • the transmit power of the data channel satisfies the following formula:
  • the P 1 is the transmission power of the data channel
  • the P CMAX is the maximum transmission power
  • the f 3 (M 1 + M 2 ) and the f 4 (M 1 + M 2 ) are respectively Is a function of the bandwidth M 1 of the data channel and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is The first adjustment parameter.
  • the embodiments of the present application also provide a terminal device.
  • the terminal device is used as a first terminal device.
  • the first terminal device includes a processor, a memory, and a transceiver.
  • the processor and the memory Coupled, the processor is used to determine the transmit power of the feedback channel; wherein the feedback channel and the data channel overlap both in time domain and frequency domain, or the feedback channel and the data channel have frequency domain Overlap and no time domain overlap, or, the feedback channel and the data channel overlap in time domain and no frequency domain overlap;
  • the transceiver is coupled to the processor, and the transceiver is configured to use the feedback channel Send feedback information to the second terminal device at the transmit power.
  • the transmit power of the feedback channel is based on the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the data channel, the difference between the feedback channel and the data channel.
  • the power difference and the second adjustment parameter are determined; or, the transmit power of the feedback channel is determined according to the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the control channel, and the power difference between the feedback channel and the control channel.
  • the value and the second adjustment parameter are determined.
  • the second adjustment parameter is configured by higher layer signaling, or the second adjustment parameter is predefined.
  • the second adjustment parameter is related to the number of bits of the feedback information and the number of resource elements RE of the feedback channel.
  • the power difference between the feedback channel and the data channel is predefined, or the power difference between the feedback channel and the data channel The value is indicated by the control information; or, the power difference between the feedback channel and the data channel is configured by higher layer signaling; the power difference between the feedback channel and the control channel is predefined, or the feedback The power difference between the channel and the control channel is indicated by the control information; or, the power difference between the feedback channel and the control channel is configured by the high-level signaling.
  • the feedback information includes hybrid automatic repeat request HARQ information, or the feedback information includes reference information, or the feedback information includes Including the HARQ information and the reference information; wherein the reference information includes the information between the first terminal device and the second terminal device, and/or, the difference between the first terminal device and the network device Between the information.
  • the reference information includes reference state information between the first terminal device and the second terminal device, reference signal received power, and reference signal One or more items of reception quality and path loss information between the first terminal device and the second terminal device.
  • the transmit power of the feedback channel satisfies the following formula:
  • the P 2 is the transmission power of the feedback channel
  • the P CMAX is the maximum transmission power
  • the f 5 (M 1 + M 3 ) and the f 6 (M 1 + M 3 ) are respectively M is the bandwidth of the data channel 1, the feedback bandwidth of the channel M 3 and the function of the power difference of the feedback channel and the data channel
  • the P O is the target received power of the second terminal device
  • the PL is an estimated path loss value
  • the ⁇ is the second adjustment parameter.
  • the transmit power of the feedback channel satisfies the following formula:
  • the P 2 is the transmission power of the feedback channel
  • the P CMAX is the maximum transmission power
  • the f 7 (M 2 + M 3 ) and the f 8 (M 2 + M 3 ) are respectively the channel bandwidth is M 2, M 3, and the bandwidth of the feedback function of the power difference of the feedback channel and the control channel of the channel
  • the P O is the target received power of the second terminal device
  • the PL is an estimated path loss value
  • the ⁇ is the second adjustment parameter.
  • an embodiment of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, which when run on a computer, causes the computer to execute the methods described in the foregoing aspects.
  • embodiments of the present application provide a computer program product including instructions, which when run on a computer, cause the computer to execute the methods described in the foregoing aspects.
  • Fig. 1a is a schematic diagram of a communication system provided by an embodiment of the present application.
  • FIG. 1b is a schematic diagram of a V2X scenario provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a time-frequency resource provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a frame structure provided by an embodiment of the present application.
  • Figure 4a is a schematic diagram of a side link scenario provided by an embodiment of the present application.
  • Figure 4b is a schematic diagram of another side link scenario provided by an embodiment of the present application.
  • FIG. 4c is a schematic diagram of another side link scenario provided by an embodiment of the present application.
  • FIG. 4d is a schematic diagram of another side link scenario provided by an embodiment of the present application.
  • FIG. 4e is a schematic diagram of another side link scenario provided by an embodiment of the present application.
  • Fig. 4f is a schematic diagram of another side link scenario provided by an embodiment of the present application.
  • FIG. 4g is a schematic diagram of another side link scenario provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a power control method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another power control method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another frame structure provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another frame structure provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another frame structure provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a power control device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • At least one (item) refers to one or more
  • “multiple” refers to two or more
  • at least two (item) refers to two or three And three or more
  • "and/or” is used to describe the association relationship of the associated objects, indicating that there can be three relationships, for example, "A and/or B” can mean: only A, only B, and A And B three cases, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • “The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, c can be single or multiple.
  • the communication system used in this application can be understood as a wireless cellular communication system, or as a wireless communication system based on a cellular network architecture.
  • Fig. 1a is a schematic diagram of a communication system provided by an embodiment of the present application, and the solution in the present application can be applied to the communication system.
  • the communication system may include at least one network device, and only one is shown, such as the next generation NodeB (gNB) in the figure; and one or more terminal devices connected to the network device, as shown in the figure. Terminal device 1 and terminal device 2.
  • gNB next generation NodeB
  • the network device may be a device that can communicate with terminal devices.
  • the network device can be any device with wireless transceiver functions, including but not limited to base stations.
  • the base station may be a gNB, or the base station may be a base station in a future communication system.
  • the network device may also be an access node, a wireless relay node, a wireless backhaul node, etc. in a wireless fidelity (WiFi) system.
  • the network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • the network device may also be a wearable device or a vehicle-mounted device.
  • the network device may also be a small station, a transmission reference point (TRP), etc.
  • TRP transmission reference point
  • Terminal equipment may also be referred to as user equipment (UE), terminal, and so on.
  • a terminal device is a device with a wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water, such as a ship, etc.; it can also be deployed in the air, for example, Airplane, balloon, or satellite.
  • the terminal equipment can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • a mobile phone can be a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • VR virtual reality
  • AR augmented reality
  • industrial control industrial control
  • the terminal device 1 and the terminal device 2 can also be implemented through device-to-device (D2D) technology or vehicle-to-everything (V2X) technology. Communication.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • V2X specifically includes vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), vehicle-to-infrastructure (V2I), and vehicle-to-vehicle communication (V2V). Communication with the network (vehicle to network, V2N). As shown in Figure 1b, Figure 1b shows the V2X scene.
  • V2V refers to LTE-based inter-vehicle communication
  • V2P refers to LTE-based communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers)
  • V2I refers to LTE-based vehicles and roads For road side unit (RSU) communication, there is another type of V2N that can be included in V2I.
  • RSU road side unit
  • V2N refers to the communication between LTE-based vehicles and base stations/networks.
  • the roadside device includes two types: terminal type RSU, because it is placed on the roadside, the terminal type RSU is in a non-mobile state, and there is no need to consider mobility; base station type RSU can be provided for vehicles communicating with it Timing synchronization and resource scheduling.
  • FIG. 2 is a schematic diagram of the structure of a time-frequency resource provided by an embodiment of the present application, in which a resource element (RE) is an orthogonal frequency division multiplexing (( The orthogonal frequency division multiplexing, OFDM) symbol, is a subcarrier in the frequency domain.
  • a resource element (RE) is an orthogonal frequency division multiplexing (( The orthogonal frequency division multiplexing, OFDM) symbol, is a subcarrier in the frequency domain.
  • OFDM orthogonal frequency division multiplexing
  • the time-frequency resources are divided into OFDM or single carrier frequency division multiplexing access in the time domain.
  • SC-FDMA single carrier frequency division multiplexing access in the time domain
  • RE which means a time-frequency grid point composed of a time-domain symbol in the time domain and a sub-carrier in the frequency domain.
  • the structure of the RE may change. Therefore, the RE shown in FIG. 2 should not be understood as a limitation to the embodiments of the present application.
  • the sub-carrier spacing can be 15kHz*2 n , where n is an integer, from 3.75, 7.5 to 480kHz, and so on.
  • the main service type in LTE V2X is broadcast, and there is no hybrid automatic repeat request (HARQ) feedback, channel state information (CSI) feedback, etc.
  • HARQ hybrid automatic repeat request
  • CSI channel state information
  • the service types in NR V2X also include unicast and multicast, as well as HARQ feedback, and use a separate physical sidelink feedback channel (PSFCH) to carry sidelink feedback control information (sidelink feedback control information, SFCI).
  • PSFCH physical sidelink feedback channel
  • the physical sidelink control channel (physical sidelink control channel, PSCCH) and the physical sidelink shared channel (physical sidelink shared channel) channel, PSSCH) is time division multiplexing (TDM).
  • TDM time division multiplexing
  • P PSSCH min ⁇ P CMAX,PSSCH ,10log 10 (M PSSCH )+ PO_PSSCH,2 + ⁇ PSSCH,2 ⁇ PL ⁇ (1)
  • P PSCCH min ⁇ P CMAX,PSCCH ,10log 10 (M PSCCH )+ PO_PSCCH,2 + ⁇ PSCCH,2 ⁇ PL ⁇ (2)
  • P PSSCH is the transmission power of PSSCH
  • P CMAX PSSCH is the maximum transmission power of the PSSCH
  • M PSSCH is the bandwidth of the PSSCH
  • P O_PSSCH 2 is the target received power of the terminal equipment
  • ⁇ PSSCH 2 is the base station configuration
  • the filter parameter, PL is the path loss between the base station and the terminal equipment.
  • P PSCCH is the transmit power of PSCCH
  • P CMAX PSCCH is the maximum transmit power of the PSCCH
  • M PSCCH is the bandwidth of the PSCCH
  • P O_PSCCH 2 is the target received power of the terminal device
  • ⁇ PSCCH, 2 is the base station configuration
  • the filter parameter, PL is the path loss between the base station and the terminal equipment.
  • PSCCH and PSSCH are frequency division duplexing (FDM).
  • FDM frequency division duplexing
  • formula (3) can be modified as follows:
  • P PSSCH is the transmission power of PSSCH
  • P PSCCH is the transmission power of PSCCH
  • M PSSCH is the bandwidth of PSSCH
  • M PSCCH is the bandwidth of PSCCH
  • P CMAX is the maximum transmission power of the terminal equipment, which can also be understood as the allowable terminal equipment Maximum transmit power.
  • PL is the downlink loss of the terminal equipment. In communication systems, especially in time division duplexing (TDD) systems, it is generally considered that the uplink and downlink losses are the same, so PL can be used to indicate that the terminal equipment reaches the base station side. Possible link loss.
  • PO_PSSCH_3 is the power expected to be received by the terminal device (also can be understood as the target received power of the terminal device), where 3 represents base station scheduling.
  • ⁇ PSSCH,3 is the filtering parameter configured in the base station scheduling mode.
  • the PSCCH and the PSSCH overlap both in the time domain and in the frequency domain.
  • PSFCH may also be multiplexed differently from PSCCH and PSSCH. Therefore, this application provides a power control method that can effectively solve PSFCH and PSCCH and PSSCH. Power control issues between. Specifically, refer to the power control method shown in FIG. 5 and FIG. 6.
  • the following will take the terminal device 1 and the terminal device 2 in NR-V2X as an example to specifically describe the communication scenario of the power control method provided in the embodiment of the present application.
  • FIG. 4a to FIG. 4g are respectively schematic diagrams of a sidelink communication scenario provided by embodiments of the application.
  • both the terminal device 1 and the terminal device 2 are outside the cell coverage.
  • the terminal device 1 is within the coverage of the cell, and the terminal device 2 is outside the coverage of the cell.
  • the terminal device 1 and the terminal device 2 are both in the coverage of the same cell, and are in a public land mobile network (PLMN), such as PLMN1.
  • PLMN public land mobile network
  • the terminal device 1 and the terminal device 2 are in a PLMN such as PLMN1, but are in different cell coverage areas.
  • the terminal device 1 and the terminal device 2 are in different PLMNs and different cells, and the terminal device 1 and the terminal device 2 are respectively in the common coverage area of the two cells.
  • terminal device 1 is in PLMN1
  • terminal device 2 is in PLMN2.
  • the terminal device 1 and the terminal device 2 are in different PLMNs and different cells, and the terminal device 1 is in the common coverage of the two cells, and the terminal device 2 is in the coverage of the serving cell.
  • the terminal device 1 and the terminal device 2 are in different PLMNs and different cells, and the terminal device 1 and the terminal device 2 are respectively in the coverage of their respective serving cells.
  • V2X vehicle-to-everything
  • FIG. 5 is a schematic flowchart of a power control method provided by an embodiment of the present application.
  • the power control method can be applied to the terminal devices shown in FIGS. 4a to 4g, and the power control method can also effectively solve the diagram.
  • the power control problem shown in 3, as shown in Figure 5, the power control method includes:
  • a first terminal device determines a transmission power of a data channel; wherein the data channel includes first information, and the first information includes feedback information.
  • the feedback information can be sent along with the data channel.
  • the feedback information can be transmitted in the data channel in a puncturing or rate matching manner.
  • the feedback information may include HARQ information, and the HARQ information includes an acknowledgement (ACK) and a negative acknowledgement (NACK). ACK is used to feed back successfully received data, and NACK is used to feed back unsuccessful reception.
  • the feedback information may also include reference information.
  • the reference information may include information between the first terminal device and the second terminal device, or the reference information may include information between the first terminal device and the network device. Or, the reference information may also include information between the first terminal device and the second terminal device, and information between the first terminal device and the network device.
  • the reference information may include any one or more of the following: reference state information between the first terminal device and the second terminal device, such as channel state information (CSI); the first terminal device and the second terminal device Path loss information between terminal devices; reference signal received power (RSRP); reference signal received quality (RSRQ).
  • CSI channel state information
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • the reference information can also include distance-related information, which can be understood as the distance between the first terminal device and the base station, or the first terminal device and the second terminal The distance between the devices, or the communication distance that the first terminal device can cover, or the feedback that the first terminal device is within the coverage of the base station.
  • the feedback information may also include both HARQ information and reference information, etc.
  • the embodiment of the present application does not uniquely limit which information the feedback information includes.
  • the data channel can be understood as a channel used to carry first information
  • the first information can include feedback information.
  • the feedback information may also be specifically referred to as sidelink feedback control information (SFCI), etc.
  • SFCI sidelink feedback control information
  • the embodiment of the present application does not uniquely limit the name of the feedback information.
  • the first information can also include data, that is, the data channel can also be understood as a channel used to carry data.
  • the data can be data sent by the first terminal device to the second terminal device.
  • the data can be used It carries the service data sent by the first terminal device to the second terminal device.
  • the data channel may be a physical side link shared channel (PSSCH).
  • PSSCH physical side link shared channel
  • the first terminal device sends the feedback information to the second terminal device using the transmit power of the data channel, and the second terminal device receives the feedback information from the first terminal device.
  • the first terminal device may carry the feedback information in the data channel in a puncturing manner, or the first terminal device may also carry the feedback information in the data channel in a rate matching manner, thereby passing The data channel sends feedback information.
  • the embodiment of the present application when the time-frequency domain resources of the data channel and the feedback channel overlap, the feedback information can be sent along with the data channel. Therefore, the embodiment of the present application improves the transmission power of the data channel, so that in this case The allocation of the transmit power of the data channel is more accurate.
  • the first terminal device determines the transmit power of the data channel. It is understandable that the method for determining the transmit power of the data channel by the first terminal device will be described below by taking the PSSCH as the data channel as an example.
  • the transmission power of the data channel may be determined according to the maximum transmission power, the bandwidth of the data channel, and the first adjustment parameter.
  • the PSSCH transmit power can satisfy the following formula:
  • P 1 is the transmit power of the data channel
  • P CMAX is the maximum transmit power
  • f 1 (M 1 ) is a function of the bandwidth M 1 of the data channel
  • P O is the target received power of the second terminal device (also can be understood as The expected received power of the first terminal device)
  • PL is the path loss estimated value
  • ⁇ path loss compensation parameters can be configured by high-level signaling
  • ⁇ is the first adjustment parameter.
  • PCMAX may be understood as the maximum transmission power limited by physical hardware, or may be understood as the maximum transmission power allowed by the hardware of the terminal device.
  • ⁇ can be understood as the HARQ, reference information, or HARQ related to the number of bits of the reference information that the feedback information is transmitted along the PSSCH.
  • the PL may be the estimated value of the path loss between the first terminal device and the base station, or the estimated value of the path loss between the first terminal device and the second terminal device, and the embodiment of the present application does not make uniqueness to the PL limited.
  • the PL may be predefined. As an example, if the first terminal device is within the coverage of the base station, the PL may be the estimated value of the path loss between the first terminal device and the base station; If the device is outside the coverage of the base station, the PL may be an estimated value of the path loss between the first terminal device and the second terminal device.
  • the PL may also be configured by high-level signaling or physical layer signaling, etc. The embodiment of the present application does not limit the specific value of the PL.
  • high-level signaling may include radio resource control (radio resource control, RRC) signaling, medium access control layer control element (medium access control control element, MAC CE) signaling, and system information block For system information block (SIB) signaling, etc.
  • RRC radio resource control
  • MAC CE medium access control control element
  • SIB system information block
  • the embodiment of the present application does not limit the specific high-level signaling.
  • the high-level signaling can be the high-level signaling under the Uu link, or the high-level signaling under the side link, or the high-level signaling under other links in the future, etc.
  • This application implements The examples are not limited.
  • the transmit power of the PSSCH may satisfy the following formula:
  • P PSSCH min ⁇ P CMAX ,10log 10 (M PSSCH )+P O + ⁇ PL+ ⁇ SFCI ⁇ (8)
  • the first adjustment parameter ⁇ or ⁇ SFCI can be determined according to the first sub-parameter Ks and the second sub-parameter BPRE (bits per resource element).
  • the sub-parameters are parameters related to the adjustment and coding scheme (modulation and coding scheme, MCS), and the second sub-parameters are the parameters related to the number of resource elements (resource elements, RE) of the data channel and the size of the coding block, or the first
  • the two sub-parameters are parameters related to the number of REs of the data channel and the number of bits of feedback information.
  • the first adjustment parameter may satisfy the following formula:
  • the first sub-parameter Ks is an adjustment parameter related to MCS, and the first sub-parameter may be indicated by high-level signaling such as radio resource control (Radio Resource Control, RRC) signaling, etc., which is not limited in the embodiment of the present application.
  • RRC Radio Resource Control
  • the second sub-parameter BPRE the following formula can be satisfied:
  • Kr is the size of the code block (code block, CB), r is the code block index, C is the total number of code blocks, and N RE is the number of PSSCH REs. That is, the second sub-parameter is a parameter related to the number of REs occupied by the data channel and the size of the coding block.
  • O CSI is the number of bits of feedback information such as CSI.
  • the OCSI may also be the sum of the number of bits of feedback information such as CSI and the number of bits of cyclic redundancy check (cyclic redundancy check, CRC).
  • N RE is the number of REs of PSSCH. That is, the second sub-parameter may also be a parameter related to the number of REs occupied by the data channel and the number of bits of feedback information.
  • the second sub-parameter shown in formula (10) can also be understood as a parameter when the feedback information and data are simultaneously transmitted in the data channel.
  • the second sub-parameter shown in formula (11) can be understood as a parameter when only feedback information is transmitted in the data channel.
  • the first adjustment parameter ⁇ or ⁇ SFCI may also be determined according to the first sub-parameter Ks, the second sub-parameter BPRE, and the third sub-parameter SFCI offset ,
  • the first sub-parameter is a parameter related to the adjustment of the coding strategy MCS
  • the second sub-parameter is a parameter related to the number of resource units RE of the data channel and the size of the coding block
  • the second sub-parameter is the number of REs related to the data channel
  • the third sub-parameter is an offset parameter related to the number of bits of the feedback information.
  • the first adjustment parameter may satisfy the following formula:
  • ⁇ SFCI 10log10[(2 BPRE ⁇ Ks -1) ⁇ SFCI offset ] (12)
  • the first sub-parameter Ks is an adjustment parameter related to MCS, and the first sub-parameter may be indicated by high-level signaling such as radio resource control (Radio Resource Control, RRC) signaling, etc., which is not limited in the embodiment of the present application.
  • RRC Radio Resource Control
  • the second sub-parameter BPRE please refer to the detailed description of formula (10) and formula (11), which will not be detailed here.
  • the value of the third sub-parameter when the feedback information and data are simultaneously transmitted in the data channel, the value of the third sub-parameter may be 1.
  • the third sub-parameter may be an offset parameter related to the number of bits of the feedback information. For example, the more the number of bits of the feedback information, the larger the value of the third sub-parameter.
  • the function corresponding to the number of bits of the feedback information changes, and the change trend of the third sub-parameter may be the same or opposite to the function corresponding to the number of bits of the feedback information.
  • the transmission power of the data channel is determined according to the maximum transmission power, the bandwidth of the data channel, the bandwidth of the control channel, and the first adjustment parameter.
  • the transmission power of the data channel satisfies the following formula:
  • P 1 is the transmission power of the data channel
  • P CMAX is the maximum transmission power
  • f 2 (M 1 + M 2 ) and f 3 (M 1 + M 2 ) are the bandwidth of the data channel M 1 and the bandwidth of the control channel, respectively
  • a function of M 2 P O is the target received power of the second terminal device
  • PL is the estimated path loss value
  • ⁇ path loss compensation parameters can be configured by high-level signaling
  • ⁇ is the first adjustment parameter.
  • PCMAX may be understood as the maximum transmission power limited by physical hardware, or may be understood as the maximum transmission power allowed by the hardware of the terminal device.
  • ⁇ can be understood as the HARQ, reference information, or HARQ related to the number of bits of the reference information that the feedback information is transmitted along the PSSCH. It can be understood that the specific description of PL can refer to the description of formula (7), which will not be described in detail here.
  • the transmit power of the PSSCH may satisfy the following formula:
  • formula (14) can be modified as follows:
  • P SSCH transmit power of the data channel M PSSCH data bandwidth of the channel
  • M PSCCH is the channel bandwidth. It can be understood that the description of other parameters in the formula can refer to the aforementioned formula description, which will not be repeated here.
  • the transmission power of the data channel satisfies the following formula:
  • P 1 is the transmit power of the data channel
  • P CMAX is the maximum transmit power
  • f 3 (M 1 + M 2 ) and f 4 (M 1 + M 2 ) are the bandwidth of the data channel M 1 and the bandwidth of the control channel, respectively function M 2
  • P O is a target received power of the second terminal device
  • PL is a path between the first terminal and the second terminal device loss estimate
  • ⁇ is a first adjustment parameter.
  • the transmit power of the PSSCH may satisfy the following formula:
  • P PSSCH_actual is the actual transmit power, that is, the actual transmit power of the PSSCH determined according to the power usage
  • P PSCCH is the transmit power of the PSSCH when the bandwidth is M PSSCH .
  • M PSSCH is the transmit power of PSSCH when PSCCH is not included in 3d of FIG. 3, that is, M PSSCH is the entire bandwidth of PSSCH, and is not limited to the bandwidth after removing the bandwidth of PSCCH.
  • the bandwidth may be the bandwidth represented by the arrow shown in the figure. In other words, the bandwidth can be understood as the bandwidth when the PSCCH is not included in the figure. It can be understood that the meanings represented by M PSSCH in other formulas in the embodiments of the present application will not be detailed one by one.
  • FIG. 6 is a schematic flowchart of another power control method provided by an embodiment of the present application.
  • the power control method can be applied to the terminal devices shown in FIGS. 4a to 4g, and the power control method can also effectively solve the problem.
  • the power control problem shown in Figure 3, as shown in Figure 6, the power control method includes:
  • the first terminal device determines the transmit power of the feedback channel; where the feedback channel and the data channel overlap both in the time domain and the frequency domain, or the feedback channel and the data channel have frequency domain overlap and no time domain overlap Or, the feedback channel and the data channel overlap in time domain and no overlap in frequency domain.
  • the feedback channel exists alone, and the feedback channel can be used to carry feedback information.
  • the frame structure relationship between the data channel and the feedback channel can refer to the structures shown in FIG. 7 to FIG. 9.
  • the data channel and the control channel are in a time division multiplexing relationship, that is, when the data channel and the control channel overlap in the frequency domain
  • the feedback channel and the data channel overlap both in the time domain and the frequency domain.
  • the feedback channel and the data channel overlap in both the time domain and the frequency domain, and there is an overlap between the feedback channel and the control channel.
  • Different relationships As shown in FIG. 9, when the data channel and the control channel are in a frequency division multiplexing relationship, that is, when the data channel and the control channel overlap in the time domain, the feedback channel and the data channel overlap in the frequency domain, which belong to the time division multiplexing relationship.
  • the embodiment of the present application will focus on determining the transmission power of the feedback channel according to the frame structure shown in FIG. 7 to FIG. 9.
  • the embodiment of the present application will focus on determining the transmission power of the feedback channel according to the frame structure shown in FIG. 7 to FIG. 9.
  • the first terminal device sends feedback information to the second terminal device using the transmit power of the feedback channel, and the second terminal device receives the feedback information from the first terminal device.
  • the feedback information may include HARQ information, and the HARQ information includes an acknowledgement (ACK) and a negative acknowledgement (NACK). ACK is used to feed back successfully received data, and NACK is used to feed back unsuccessful reception.
  • the feedback information may also include reference information.
  • the reference information may include information between the first terminal device and the second terminal device, or the reference information may include information between the first terminal device and the network device. Or, the reference information may also include information between the first terminal device and the second terminal device, and information between the first terminal device and the network device.
  • the reference information may include any one or more of the following: reference state information between the first terminal device and the second terminal device, such as channel state information (CSI); the first terminal device and the second terminal device Path loss information between terminal devices; reference signal received power (RSRP); reference signal received quality (RSRQ).
  • CSI channel state information
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • the reference information can also include distance-related information, which can be understood as the distance between the first terminal device and the base station, or the first terminal device and the second terminal The distance between the devices, or the communication distance that the first terminal device can cover, or the feedback that the first terminal device is within the coverage of the base station.
  • the feedback information may also include both HARQ information and reference information, etc.
  • the embodiment of the present application does not uniquely limit which information the feedback information includes.
  • control channel can be understood as a channel used to carry sidelink control information (SCI), and the SCI can include decoding information of data transmitted in the data channel, and so on.
  • SCI sidelink control information
  • the control channel may be a physical sidelink control channel (PSCCH).
  • PSCCH physical sidelink control channel
  • the multiplexing mode between the feedback channel and the data channel may include multiple possibilities (that is, different frame structures).
  • the feedback channel may overlap with the data channel in both time domain and frequency domain, or as feedback
  • the channel may overlap the data channel in the frequency domain but no time domain overlap.
  • the feedback channel may overlap the data channel in the time domain but no frequency domain overlap.
  • Different multiplexing methods correspond to different transmission powers, so the terminal equipment can be based on One of a variety of possibilities is used to determine the transmission power of the feedback channel, which avoids adopting a method to determine the transmission power of the feedback channel in all cases, thereby effectively improving the accuracy of determining the transmission power of the feedback channel. Control the transmit power of the feedback channel reasonably.
  • the first terminal device determines the transmit power of the feedback channel. It can be understood that the method for determining the transmit power of the feedback channel by the first terminal device will be described below by taking the data channel as the PSSCH, the control channel as the PSCCH and the feedback channel as the PSFCH as examples.
  • the transmit power of the feedback channel is determined according to the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the data channel, the power difference between the feedback channel and the data channel, and the second adjustment parameter.
  • the transmit power of the feedback channel satisfies the following formula:
  • P 2 is the transmission power of the feedback channel
  • P CMAX is the maximum transmission power
  • f 5 (M 1 +M 3 ) and f 6 (M 1 +M 3 ) are the bandwidth of the data channel M 1 and the bandwidth of the feedback channel, respectively M 3 and a function of the power difference between the feedback channel and the data channel (not shown in the formula)
  • P O is the target received power of the second terminal device
  • ⁇ is the path loss compensation parameter, which can be configured by high-level signaling
  • PL is Path loss estimate
  • ⁇ is the second adjustment parameter.
  • the PL may be the estimated value of the path loss between the first terminal device and the base station, or the estimated value of the path loss between the first terminal device and the second terminal device, and the embodiment of the present application does not make uniqueness to the PL limited.
  • the PL may be predefined. As an example, if the first terminal device is within the coverage of the base station, the PL may be the estimated value of the path loss between the first terminal device and the base station; If the device is outside the coverage of the base station, the PL may be an estimated value of the path loss between the first terminal device and the second terminal device.
  • the PL may also be configured by high-level signaling or physical layer signaling, etc. The embodiment of the present application does not limit the specific value of the PL.
  • the transmit power of the feedback channel may satisfy the following formula:
  • P PSFCH is the transmit power of the feedback channel
  • x is the power difference between the feedback channel and the data channel
  • M PSFCH is the bandwidth of the feedback channel
  • M PSSCH is the bandwidth of the data channel
  • M PSCCH is the bandwidth of the control channel
  • ⁇ format is The second adjustment parameter.
  • formula (22) can also be deformed according to the deformation method of formula (3) and formula (5), and formula (22) should not be understood as a limitation of the embodiment of the present application.
  • f 5 (M 1 +M 3 ) and f 6 (M 1 +M 3 ) can respectively satisfy the following formulas:
  • the second adjustment parameter ⁇ or ⁇ format can be configured by higher layer signaling, or the second adjustment parameter is predefined.
  • the second adjustment parameter may be related to the number of HARQ bits. If the feedback information includes reference information, then The second adjustment parameter may be related to the number of bits of the reference information and so on. It is understandable that for the specific implementation manners of including information in the feedback information, reference may be made to the foregoing embodiments, which will not be described in detail here. It can be understood that the second adjustment parameter may not only be related to the number of bits of the feedback information, but the second adjustment parameter may also be related to the content included in the feedback information. For different feedback information, the value of the second adjustment parameter may also be different.
  • the second adjustment parameter may not only be related to the information included in the feedback information, but also related to the number of bits of the information included in the feedback information.
  • the second adjustment parameter can be indicated by high-layer signaling, or the second adjustment parameter can also be predefined by different feedback information or the number of bits of information included in the feedback information.
  • the second adjustment parameter may also be related to the number of bits of feedback information and the number of resource elements RE of the feedback channel.
  • the second adjustment parameter may satisfy the following formula:
  • K is a power adjustment factor.
  • different feedback information can correspond to different K, for example, K can be indicated by high-level signaling.
  • BPRE O SFCI /N RE , where O SFCI is the number of bits of feedback information such as HARQ, the number of bits of reference information CSI, and the number of bits of other information included in the reference information, such as HARQ and CRC The number of bits of CSI and CRC, etc., N RE is the number of REs occupied by PSFCH.
  • the second adjustment parameter may also be related to different modes.
  • the second adjustment parameter may be different in the base station scheduling mode and the competition mode.
  • the second adjustment parameter may also be different according to different transmission links.
  • the second adjustment parameter may be different from the link between the terminal device and the terminal device in the link between the base station and the terminal device. It can be understood that the value of the second adjustment parameter may also be independent of the mode, or independent of the transmission link, etc., which is not limited in the embodiment of the present application.
  • the power difference x between the feedback channel and the data channel is predefined, or the power difference x between the feedback channel and the data channel is indicated by the control information; or, the feedback channel and the data channel
  • the power difference x of the data channel is configured by high-level signaling, etc.
  • the embodiment of the present application does not limit how to set this x.
  • the x may be associated with different frame structures, and may be different according to the different frame structures shown in FIG. 7 to FIG. 9.
  • Another example is x can be dynamically indicated by SCI through 1bit or 2bits. It is understandable that the value of x can be positive, negative, or zero.
  • the demodulation of the feedback channel can be facilitated. If the transmit power of the feedback channel is higher than the transmit power of the data channel, the demodulation efficiency and accuracy of the feedback channel can be effectively improved.
  • the transmit power of the PSSCH in 8a in Figure 8 needs to consider the overlap of the PSFCH and PSCCH with the PSSCH. Therefore, the transmit power of the PSSCH in 8a in Figure 8 can satisfy the following formula:
  • the transmit power of the PSSCH may also satisfy the following formula:
  • the bandwidth represents the bandwidth of the entire PSSCH in 8a of FIG. 8, that is, the bandwidth of the PSSCH when PSCCH and PSFCH are not included in the figure.
  • the bandwidth may be the bandwidth indicated by the arrow in the figure.
  • P PSSCH_actual in the formula may be the actual transmission power of the PSSCH, that is, the actual transmission power of the PSSCH determined according to the power usage and so on.
  • the transmit power of the feedback channel may also be based on the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the control channel, the power difference between the feedback channel and the control channel, and the second The adjustment parameters are determined.
  • the time-frequency domain resources of the PSFCH overlap with the time-frequency domain resources of the PSSCH, and the time domain resources of the PSCCH and PSFCH overlap, which belongs to frequency division multiplexing. Therefore, according to the multiplexing priority rules of PSFCH, PSCCH and PSSCH, such as PSCCH>PSFCH>PSSCH, different power boosting can be used. And because of the multiplexing relationship between PSFCH and PSCCH, the power difference y between PSFCH and PSCCH can be considered. It can be understood that in this case, there may also be a power difference x between the PSFCH and the PSSCH. For this case, reference may be made to the foregoing implementation manners, which will not be described in detail here.
  • the transmit power of the feedback channel satisfies the following formula:
  • P 2 is the transmit power of the feedback channel
  • P CMAX is the maximum transmit power
  • f 7 (M 2 +M 3 ) and f 8 (M 2 +M 3 ) are the bandwidth of the control channel M 2 and the bandwidth of the feedback channel, respectively M 3 and a function of the power difference between the feedback channel and the control channel
  • P O is the target received power of the second terminal device
  • PL is the path loss estimate
  • ⁇ is the second adjustment parameter.
  • the transmit power of the feedback channel may satisfy the following formula:
  • the power difference y between the feedback channel and the control channel is predefined, or the power difference y between the feedback channel and the control channel is indicated by the control information; or, the power difference y between the feedback channel and the control channel is made by higher layer signaling Configuration.
  • the transmit power of PSSCH can satisfy the following formula:
  • the transmit power of PSSCH can also satisfy the following formula:
  • the PSFCH transmission power can be determined by the power difference between the PSCCH and the PSFCH. Therefore, the formulas satisfied by the PSFCH in 9a in FIG. 9 can refer to the specific implementations of formula (28) and formula (29) shown in 8b in FIG. 8, which will not be described in detail here. And the formulas satisfied by the PSFCH in 9b in FIG. 9 can also refer to the specific implementations of formula (28) and formula (29) shown in 8b in FIG. It can be understood that although there is a power difference between PSCCH and PSFCH in FIG. 9, whether the power difference between PSCCH and PSFCH in FIG. 9 is the same as the power difference between PSCCH and PSFCH in FIG. The examples are not limited.
  • the transmit power of PSSCH can satisfy the following formula:
  • the transmit power of PSSCH can also satisfy the following formula:
  • z in formula (32) and formula (33) is the power difference between PSFCH and PSSCH.
  • the bandwidth in the various embodiments shown in this application may be in units of resource blocks (RB). That is, the bandwidth in each of the foregoing embodiments can be represented by the number of RBs.
  • the power control device provided by the embodiment of the application will be described in detail below.
  • the device can be used to execute the method described in the embodiment of the application.
  • the device may be a terminal device (such as a first terminal device), or a terminal device that implements the above functions. Components, or chips.
  • FIG. 10 is a schematic structural diagram of a power control device provided by an embodiment of the present application.
  • the power control device can be used to execute the method described in the embodiment of the present application.
  • the power control device includes:
  • the processing unit 1001 is configured to determine the transmit power of the data channel; wherein, the data channel includes first information, and the first information includes feedback information;
  • the sending unit 1002 is configured to send the above-mentioned feedback information to the second terminal device using the transmitting power of the above-mentioned data channel.
  • the embodiment of the present application when the time-frequency domain resources of the data channel and the feedback channel overlap, the feedback information can be sent along with the data channel. Therefore, the embodiment of the present application improves the transmission power of the data channel, so that in this case The allocation of the transmit power of the data channel is more accurate.
  • the transmission power of the data channel is determined according to the maximum transmission power, the bandwidth of the data channel, and the first adjustment parameter;
  • the transmission power of the data channel is determined according to the maximum transmission power, the bandwidth of the data channel, the bandwidth of the control channel, and the first adjustment parameter.
  • the above-mentioned first adjustment parameter is determined according to the first sub-parameter and the second sub-parameter
  • the above-mentioned first sub-parameter is a parameter related to adjustment and coding strategy MCS
  • the above-mentioned second sub-parameter is related to the above-mentioned Parameters related to the number of resource units RE of the data channel and the size of the coding block
  • the second sub-parameter is a parameter related to the number of REs of the data channel and the number of bits of the feedback information.
  • the above-mentioned first adjustment parameter is determined according to the first sub-parameter, the second sub-parameter, and the third sub-parameter
  • the above-mentioned first sub-parameter is a parameter related to the adjustment of the coding strategy MCS
  • the above-mentioned second The sub-parameter is a parameter related to the number of resource unit REs of the data channel and the size of the coding block
  • the second sub-parameter is a parameter related to the number of REs of the data channel and the number of bits of the feedback information
  • the third The sub parameter is an offset parameter related to the number of bits of the feedback information.
  • the foregoing feedback information includes hybrid automatic repeat request HARQ information, or, the foregoing feedback information includes reference information, or the foregoing feedback information includes the foregoing HARQ information and the foregoing reference information; wherein, the foregoing The reference information includes information between the first terminal device and the second terminal device, and/or information between the first terminal device and the network device.
  • the reference information includes reference status information between the first terminal device and the second terminal device, reference signal receiving power, reference signal receiving quality, and the relationship between the first terminal device and the second terminal device.
  • the transmit power of the above data channel satisfies the following formula:
  • P 1 is the transmit power of the data channel
  • P CMAX is the maximum transmit power
  • f 1 (M 1 ) is a function of the bandwidth M 1 of the data channel
  • P O is the second terminal device
  • the aforementioned PL is an estimated path loss value
  • the aforementioned ⁇ is the aforementioned first adjustment parameter.
  • the transmit power of the above data channel satisfies the following formula:
  • P 1 is the transmit power of the data channel
  • P CMAX is the maximum transmit power
  • f 2 (M 1 + M 2 ) and f 3 (M 1 + M 2 ) are the bandwidths of the data channel, respectively A function of M 1 and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is the first adjustment parameter.
  • the transmit power of the above data channel satisfies the following formula:
  • P 1 is the transmit power of the data channel
  • P CMAX is the maximum transmit power
  • f 3 (M 1 + M 2 ) and f 4 (M 1 + M 2 ) are the bandwidths of the data channel, respectively A function of M 1 and the bandwidth M 2 of the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimation value
  • the ⁇ is the first adjustment parameter.
  • the processing unit 1001 may be one or more processors, and the sending unit 1002 may be a transmitter.
  • the processing unit 1001 may be one or more processors, and the sending unit 1002 may be an output interface.
  • the above-mentioned power control device may further include a receiving unit.
  • the receiving unit (not shown in the figure) may be a receiver.
  • the sending unit 1002 and the receiving unit are integrated into one device, such as a transceiver.
  • the receiving unit may be an input interface, or the sending unit 1002 and the receiving unit are integrated into one unit, such as an input/output interface.
  • the power control device shown in FIG. 10 may also be used to perform the following operations:
  • the processing unit 1001 is configured to determine the transmission power of the feedback channel; wherein the feedback channel and the data channel overlap both in the time domain and the frequency domain, or the feedback channel and the data channel have frequency domain overlap and no time domain overlap , Or, the feedback channel and the data channel overlap in time domain and no overlap in frequency domain;
  • the sending unit 1002 is configured to send feedback information to the second terminal device using the transmission power of the feedback channel.
  • the multiplexing mode between the feedback channel and the data channel may include multiple possibilities (that is, different frame structures).
  • the feedback channel may overlap with the data channel in both time domain and frequency domain, or as feedback
  • the channel may overlap the data channel in the frequency domain but no time domain overlap.
  • the feedback channel may overlap the data channel in the time domain but no frequency domain overlap.
  • Different multiplexing methods correspond to different transmission powers, so the terminal equipment can be based on One of a variety of possibilities is used to determine the transmission power of the feedback channel, which avoids adopting a method to determine the transmission power of the feedback channel in all cases, thereby effectively improving the accuracy of determining the transmission power of the feedback channel. Control the transmit power of the feedback channel reasonably.
  • the transmit power of the feedback channel is determined according to the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the data channel, the power difference between the feedback channel and the data channel, and a second adjustment parameter;
  • the transmit power of the feedback channel is determined according to the maximum transmit power, the bandwidth of the feedback channel, the bandwidth of the control channel, the power difference between the feedback channel and the control channel, and the second adjustment parameter.
  • the above-mentioned second adjustment parameter is configured by higher layer signaling, or the above-mentioned second adjustment parameter is predefined.
  • the second adjustment parameter is related to the number of bits of the feedback information and the number of resource elements RE of the feedback channel.
  • the power difference between the feedback channel and the data channel is predefined, or the power difference between the feedback channel and the data channel is indicated by control information; or, the feedback channel and the above The power difference of the data channel is configured by high-level signaling;
  • the power difference between the feedback channel and the control channel is predefined, or the power difference between the feedback channel and the control channel is indicated by the control information; or, the power difference between the feedback channel and the control channel is determined by the above High-level signaling configuration.
  • the foregoing feedback information includes hybrid automatic repeat request HARQ information, or, the foregoing feedback information includes reference information, or the foregoing feedback information includes the foregoing HARQ information and the foregoing reference information; wherein, the foregoing The reference information includes information between the first terminal device and the second terminal device, and/or information between the first terminal device and the network device.
  • the reference information includes reference status information between the first terminal device and the second terminal device, reference signal receiving power, reference signal receiving quality, and the relationship between the first terminal device and the second terminal device.
  • the transmit power of the feedback channel above satisfies the following formula:
  • P 2 is the transmit power of the feedback channel
  • P CMAX is the maximum transmit power
  • f 5 (M 1 +M 3 ) and f 6 (M 1 + M 3 ) are bandwidths of the data channel, respectively M 1 , a function of the bandwidth M 3 of the feedback channel and the power difference between the feedback channel and the data channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimate
  • the ⁇ is The above-mentioned second adjustment parameter.
  • the transmit power of the feedback channel above satisfies the following formula:
  • P 2 is the transmit power of the feedback channel
  • P CMAX is the maximum transmit power
  • f 7 (M 2 + M 3 ) and f 8 (M 2 + M 3 ) are the bandwidths of the control channel, respectively M 2 , a function of the bandwidth M 3 of the feedback channel and the power difference between the feedback channel and the control channel
  • the P O is the target received power of the second terminal device
  • the PL is the path loss estimate
  • the ⁇ is The above-mentioned second adjustment parameter.
  • FIG. 11 is a schematic structural diagram of a terminal device 1100 according to an embodiment of the application.
  • the terminal device may perform the operation of the first terminal device in the methods shown in FIG. 5 and FIG. 6, or the terminal device may also perform the operation of the power control apparatus shown in FIG.
  • FIG. 11 only shows the main components of the terminal device.
  • the terminal device 1100 includes a processor, a memory, a radio frequency link, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute the software program, and process the data of the software program, for example, to support the terminal device to execute the processes described in FIG. 5 and FIG. 6.
  • the memory is mainly used to store software programs and data.
  • the radio frequency link is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • the terminal device 1100 may also include input and output devices, such as a touch screen, a display screen, a keyboard, etc., which are mainly used to receive data input by a user and output data to the user. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor can read the software program in the storage unit, interpret and execute the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency link.
  • the radio frequency link performs radio frequency processing on the baseband signal and sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • the RF link receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data .
  • FIG. 11 only shows a memory and a processor. In actual terminal devices, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit (CPU).
  • the baseband processor is mainly used for processing communication protocols and communication data, and the CPU is mainly used for processing the entire terminal.
  • the equipment controls, executes the software program, and processes the data of the software program.
  • the processor may also be a network processor (network processor, NP) or a combination of CPU and NP.
  • the processor may further include a hardware chip.
  • the aforementioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.
  • the memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory) , Hard disk drive (HDD) or solid-state drive (solid-state drive, SSD); the memory may also include a combination of the above types of memory.
  • the antenna and radio frequency link with the transceiver function may be regarded as the transceiver unit 1101 of the terminal device 1100, and the processor with the processing function may be regarded as the processing unit 1102 of the terminal device 1100.
  • the terminal device 1100 may include a transceiving unit 1101 and a processing unit 1102.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver, and so on.
  • the device for implementing the receiving function in the transceiver unit 1101 can be regarded as the receiving unit
  • the device for implementing the sending function in the transceiver unit 1101 can be regarded as the sending unit, that is, the transceiver unit 1101 includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • the transceiver unit 1101 and the processing unit 1102 may be integrated into one device or separated into different devices.
  • the processor and the memory may also be integrated into one device, or separate into different devices.
  • the transceiver unit 1101 may be used to execute the method shown in step 502 shown in FIG. 5.
  • the transceiver unit 1101 may also be used to execute the method shown in step 602 shown in FIG. 6.
  • the processing unit 1102 may be used to control the transceiver unit 1101 to perform the method shown in step 502 shown in FIG. 5, and the processing unit 1102 may also be used to control the transceiver unit 1101 to perform the method shown in FIG. 6 The method shown in step 602.
  • the processing unit 1102 may also be used to execute the method shown in step 501 shown in FIG. 5 and the method shown in step 601 shown in FIG. 6.
  • the transceiver unit 1101 may also be used to execute the method shown by the sending unit 1002.
  • the processing unit 1102 may also be used to execute the method shown by the processing unit 1001.
  • the embodiment of the present application also provides a computer-readable storage medium. All or part of the procedures in the foregoing method embodiments may be completed by a computer program instructing relevant hardware.
  • the program may be stored in the foregoing computer storage medium. When the program is executed, it may include the procedures of the foregoing method embodiments.
  • the computer-readable storage medium may be an internal storage unit of the power control device (including the data sending end and/or the data receiving end) of any of the foregoing embodiments, such as the hard disk or memory of the power control device.
  • the computer-readable storage medium may also be an external storage device of the power control device, such as a plug-in hard disk, a smart media card (SMC), or a secure digital (SD) equipped on the power control device. Card, flash card, etc.
  • the above-mentioned computer-readable storage medium may also include both an internal storage unit of the above-mentioned power control device and an external storage device.
  • the aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned power control device.
  • the aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.

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Abstract

La présente invention concerne un procédé de commande de puissance et un dispositif terminal, le procédé comportant les étapes suivantes: un premier dispositif terminal détermine la puissance d'émission d'un canal de données, le canal de données comportant des premières informations, et les premières informations comportant des informations de rétroaction; et le premier dispositif terminal utilise la puissance d'émission du canal de données pour envoyer les informations de rétroaction à un second dispositif terminal. La présente invention concerne en outre, de façon correspondante, un dispositif correspondant. En employant la présente invention, la puissance peut être commandée de manière raisonnable.
PCT/CN2020/072548 2019-01-31 2020-01-16 Procédé de commande de puissance et dispositif terminal WO2020156214A1 (fr)

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