CN116170862A - Power determination method and communication device - Google Patents

Power determination method and communication device Download PDF

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Publication number
CN116170862A
CN116170862A CN202111389856.9A CN202111389856A CN116170862A CN 116170862 A CN116170862 A CN 116170862A CN 202111389856 A CN202111389856 A CN 202111389856A CN 116170862 A CN116170862 A CN 116170862A
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China
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signaling
uplink transmission
information
power
time unit
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CN202111389856.9A
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Chinese (zh)
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张莉莉
戴喜增
刘江华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202111389856.9A priority Critical patent/CN116170862A/en
Priority to PCT/CN2022/131012 priority patent/WO2023088158A1/en
Publication of CN116170862A publication Critical patent/CN116170862A/en
Pending legal-status Critical Current

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    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H04L1/0063—Single parity check
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1806—Go-back-N protocols
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • 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
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • 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
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a power determination method and a communication device, wherein the method comprises the following steps: receiving a first signaling, wherein the first signaling comprises first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is uplink transmission positioned in the first full duplex time unit; and determining the transmitting power of the first uplink transmission according to the first signaling. Based on the method described in the application, the terminal equipment can timely receive the first signaling to determine the transmitting power of the first uplink transmission of the terminal equipment in the first full duplex time unit, so that the first uplink transmission is prevented from being subjected to strong self-interference, and the gain of full duplex is prevented from being reduced.

Description

Power determination method and communication device
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a power determining method and a communications device.
Background
Current wireless communication systems, such as WiFi, long term evolution (long term evolution, LTE) are based on half duplex transmission, i.e. the same device does not allow simultaneous transceiving operations on the same carrier or the same time-frequency resources. Recently, the third generation partnership project (3rd generation partnership project,3GPP) has proposed full-duplex sub-band (subband full duplex, SBFD) for joint scheduling of terminal devices operating in half-duplex mode, so that network devices (such as base stations) can transmit and receive simultaneously, and full-duplex is implemented on the network device side. Full duplex performed by the network device side is sub-band full duplex, that is, transmitting and receiving are performed simultaneously on different sub-bands of the same carrier. Sub-band full duplex may also be referred to as time-frequency division duplex (X division duplex, XDD), full duplex, or the like. For example, as shown in fig. 1, for a certain time division duplex downlink (time division duplex downlink, TDD DL) slot (slot), a portion of the subbands may be selected in the slot for use as Uplink (UL) transmission. I.e. enabling frequency division duplex (frequency division duplex, FDD) transmission over an asymmetric spectrum (unpaired spectrum, commonly referred to as TDD).
Different downlink user equipments (downlink user equipment, DL UEs) in the SBFD time slot may cause different interference to UL UEs in the SBFD time slot. Current power control is not directed to SBFD transmission, and therefore inaccurate power adjustment information can cause uplink transmission to suffer from strong self-interference, resulting in full duplex gain reduction.
Disclosure of Invention
The power determining method and the communication device are beneficial to avoiding strong self-interference of uplink transmission and reducing full duplex gain.
In a first aspect, the present application provides a power determining method, applied to a first terminal device, where the method includes:
receiving a first signaling, wherein the first signaling comprises first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is uplink transmission positioned in the first full duplex time unit; and determining the transmitting power of the first uplink transmission according to the first signaling.
Based on the method described in the first aspect, the first terminal device can timely receive the first signaling to determine the transmitting power of the first uplink transmission of the first terminal device in the first full duplex time unit, which is beneficial to avoiding that the first uplink transmission is subjected to strong self-interference and reducing the gain of full duplex.
Optionally, the first signaling is not used for scheduling. Optionally, the first signaling does not include uplink scheduling information or downlink scheduling information.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain. By introducing different transmission directions on the same time unit, uplink transmission can be made on the carrier for downlink transmission or on the carrier for flexible symbols. Therefore, the uplink capacity is expanded, the time delay required by the terminal equipment for uplink transmission is reduced, the waiting time is shorter, the communication is accelerated, and the service quality is ensured.
In one possible implementation, the first terminal device may further receive second signaling, where the second signaling includes third information and fourth information, the third information indicates a first full duplex time unit, the fourth information indicates second power adjustment information of the first uplink transmission, and the second signaling does not include uplink scheduling information or downlink scheduling information; according to the first signaling, the specific implementation mode of determining the transmitting power of the first uplink transmission is as follows: and determining the transmitting power of the first uplink transmission according to the first signaling and the second signaling.
Based on the possible implementation manner, the network device may issue the power adjustment information of the first uplink transmission to the first terminal device multiple times. If the network device determines that all the terminal devices for downlink transmission in the first full duplex time unit have been determined, the network device issues the power adjustment information for the first uplink transmission to the first terminal device, and the network device may face insufficient downlink resources for sending the power adjustment information, or may not ensure that the first terminal device has enough time to determine and adjust the transmission power of the first uplink transmission after receiving the power adjustment information for the first uplink transmission. Therefore, the first terminal device may not perform effective power compensation on the first uplink transmission, and may not alleviate the self-interference effect suffered by the first uplink transmission at the network device, where the first uplink transmission may not be received correctly by the network device. If the network device issues the power adjustment information of the first uplink transmission to the first terminal device for multiple times, the network device may issue the power adjustment information of the first uplink transmission in time when determining that the downlink transmission will have a self-interference effect on the first uplink transmission, so as to ensure that sufficient issuing resources are available for sending the power adjustment information, and ensure that the first terminal device has sufficient time to determine and adjust the transmission power of the first uplink transmission after receiving the power adjustment information of the first uplink transmission. Therefore, the first terminal device is beneficial to effectively compensating the power of the first uplink transmission, and the self-interference influence suffered by the first uplink transmission at the network device is relieved, so that the first uplink transmission is correctly received by the network device.
In one possible implementation, the first terminal device may also receive third signaling before receiving the first signaling; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission; the specific implementation mode of determining the transmitting power of the first uplink transmission by the first terminal equipment according to the first signaling is as follows: and determining the transmitting power of the first uplink transmission according to the first signaling and the third signaling. In this possible implementation, the first power adjustment information may be an offset with respect to the third power adjustment information, and by indicating that the offset with respect to the third power adjustment information helps to reduce the overhead of the first signaling, the number of bits of the first signaling may be reduced, minimizing the cost.
Optionally, the scheduling information refers to at least one of time domain or frequency domain resource allocation information, modulation coding information, HARQ process number information, uplink sounding signal triggering information, feedback information of data to be transmitted, feedback resource information of data to be transmitted, or power parameter information of data to be transmitted.
In one possible implementation, the first terminal device may further receive a fourth signaling, where the fourth signaling includes scheduling information of the second uplink transmission, or the fourth signaling includes scheduling information of the second downlink transmission, where the second uplink transmission is used to transmit feedback information of the second downlink transmission; and determining the transmitting power of the second uplink transmission according to the third signaling and the fourth signaling, wherein the second uplink transmission is positioned after the first uplink transmission in the time domain. Based on this possible implementation, it may be avoided that after adjusting the transmit power of the first uplink transmission in the first full duplex time unit, the transmit power of the uplink transmission after the first uplink transmission is affected. Based on the possible implementation manner, the transmission power of uplink transmission in a certain full duplex time unit can be adjusted in a targeted manner.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission. Based on this possible implementation, it can be ensured that the first terminal device has sufficient time to determine and adjust the transmit power of the first uplink transmission.
In one possible implementation, the first power adjustment information includes a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the first signaling may be group common control signaling. Because the group common control signaling is sent to a group of terminal devices instead of user specific (UE-specific), the problem of large signaling overhead caused by the fact that the network device generates different signaling for each terminal device in the terminal device group respectively is avoided, and the signaling overhead of the network device is reduced.
In one possible implementation, the first signaling may be a dedicated control instruction.
In one possible implementation, the cyclic redundancy check, CRC, portion of the group common control signaling is scrambled by a group common radio network temporary identity, RNTI. So that all terminal equipments in the one user group can use the RNTI to descramble the group common control signaling.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1. Based on this possible implementation, it is possible to accurately indicate its corresponding power adjustment information to a plurality of terminal devices.
In one possible implementation, the first information includes a time unit offset from T1 to T2, T1 being the time unit in which the first signaling is transmitted and T2 being the first full duplex time unit. The first full duplex time unit is indicated by the time unit offset of T1 to T2, so that the first full duplex time unit can be effectively indicated, the first terminal equipment can know the time unit for accurately applying the first power adjustment information, and the first full duplex time unit is indicated by the time unit offset of T1 to T2, thereby being beneficial to reducing the overhead of the first signaling, reducing the bit number of the first signaling and minimizing the cost.
Alternatively, the time unit offsets of T1 to T2 may be slot offsets. Alternatively, the time unit offsets of T1 to T2 may be symbol offsets.
In one possible implementation, the first signaling is dedicated control signaling, and the first information includes a hybrid automatic repeat request, HARQ, process number corresponding to the first full duplex time unit. The HARQ process number corresponds to a time unit, indicating that the data transmission corresponding to the HARQ process number is located in the time unit. The first terminal equipment can determine a time unit in which data corresponding to a certain HARQ process number is transmitted based on the HARQ process in the effective period. The effective period refers to the continuous scheduling time of the maximum number of HARQ processes, and the time unit of data transmission corresponding to a certain HARQ process number is determined by limiting the HARQ processes in the effective period, so that the situation that the terminal equipment cannot be confused and cannot accurately distinguish and adapt to a plurality of data with the same HARQ process number can be avoided. The first full duplex time unit is indicated by the HARQ process number, which may be indicated without introducing any new reference information.
In a second aspect, the present application provides a power determining method, applied to a second terminal device, where the method includes: receiving a first signaling, wherein the first signaling comprises first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is uplink transmission positioned in the first full duplex time unit; receiving a fifth signaling, where the fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission, and the third uplink transmission is located in a second full duplex time unit; determining the transmitting power of the third uplink transmission; wherein the second full duplex time unit is different from the first full duplex time unit, and the first signaling is not used to determine a transmit power of the third uplink transmission.
Based on the method described in the second aspect, after the second terminal device receives the first signaling of the multicast, if the uplink transmission in the second terminal device is not in the full duplex time unit indicated by the first signaling, the first signaling is not used to determine the transmission power of the uplink transmission, so that the second terminal device can accurately determine the transmission power of the uplink transmission.
Optionally, the first signaling is not used for scheduling. Optionally, the first signaling does not include uplink scheduling information or downlink scheduling information.
In one possible implementation, after the second terminal device receives the fifth signaling, it is determined that the first signaling is not used to determine the transmit power of the third uplink transmission when the second full duplex time unit is different from the first full duplex time unit.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit or the second full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information includes a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the first signaling may be group common control signaling or dedicated control signaling.
In one possible implementation, the cyclic redundancy check, CRC, portion of the group common control signaling is scrambled by a group common radio network temporary identity, RNTI.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1.
In one possible implementation, the first information includes a time unit offset from T1 to T2, T1 being the time unit in which the first signaling is transmitted and T2 being the first full duplex time unit.
The advantages of the possible implementation manners of the second aspect may be referred to the advantages of the corresponding possible implementation manners of the first aspect, which are not described here in detail.
In a third aspect, the present application provides a power determining method, applied to a network device, the method including: determining first information and second information, wherein the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is uplink transmission located in the first full duplex time unit; and sending first signaling to the first terminal equipment, wherein the first signaling comprises first information and second information.
Optionally, the first signaling is not used for scheduling. Optionally, the first signaling does not include uplink scheduling information or downlink scheduling information.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the network device may further send a second signaling to the first terminal device, the second signaling including third information indicating the first full duplex time unit and fourth information indicating second power adjustment information of the first uplink transmission.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information includes a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the network device may also send a third signaling to the first terminal device; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission; the first power adjustment information may be an offset relative to the third power adjustment information.
In one possible implementation, the first signaling may be group common control signaling or dedicated control signaling.
In one possible implementation, the cyclic redundancy check, CRC, portion of the group common control signaling is scrambled by a group common radio network temporary identity, RNTI.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1.
In one possible implementation, the first signaling is a group common control signaling, and the specific implementation of sending the first signaling to the first terminal device is: sending a first signaling to a first terminal device and a second terminal device; the network device may further send a fifth signaling to the second terminal device, where the fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission, and the third uplink transmission is located in the second full duplex time unit; the second full duplex time unit is different from the first full duplex time unit, and the first signaling is not used to determine a transmit power of the third uplink transmission.
In one possible implementation, the first information includes a time unit offset from T1 to T2, T1 being the time unit in which the first signaling is transmitted and T2 being the first full duplex time unit.
Alternatively, the time unit offsets of T1 to T2 may be slot offsets. Alternatively, the time unit offsets of T1 to T2 may be symbol offsets. Alternatively, the time unit offsets of T1 to T2 may be the offsets of the slots and symbols.
In one possible implementation, the first signaling is dedicated control signaling, and the first information includes a hybrid automatic repeat request, HARQ, process number, the HARQ process number corresponding to a first full duplex time unit.
The advantages of the third aspect and possible implementations of the third aspect may be referred to as the advantages of the first aspect, the advantages of the possible implementations of the first aspect and the advantages of the second aspect, and are not described here in detail.
In a fourth aspect, the present application provides a power determination method, the method comprising: receiving a first signaling, wherein the first signaling is a special control instruction, the first signaling comprises first information, the first information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is uplink transmission positioned in a first full duplex time unit; and determining the transmitting power of the first uplink transmission according to the first signaling.
Based on the method described in the fourth aspect, the terminal device can timely receive the first signaling to determine the transmitting power of the uplink transmission of the terminal device in the first full duplex time unit, which is beneficial to avoiding strong self-interference of the first uplink transmission and reducing the gain of full duplex. And the first signaling does not indicate the first full duplex time unit, which is advantageous in reducing the indication overhead.
Optionally, the first signaling is not used for scheduling. Optionally, the first signaling does not include uplink scheduling information or downlink scheduling information.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain. By introducing different transmission directions on the same time unit, uplink transmission can be made on the carrier for downlink transmission or on the carrier for flexible symbols. Therefore, the uplink capacity is expanded, the time delay required by the terminal equipment for uplink transmission is reduced, the waiting time is shorter, the communication is accelerated, and the service quality is ensured.
In one possible implementation, a second signaling may also be received, the second signaling including second information indicating second power adjustment information for the first uplink transmission, the second signaling not including uplink scheduling information or downlink scheduling information; according to the first signaling, the specific implementation mode of determining the transmitting power of the first uplink transmission is as follows: and determining the transmitting power of the first uplink transmission according to the first signaling and the second signaling. Based on the possible implementation manner, the network device can issue the power adjustment information of the first uplink transmission to the first terminal device for multiple times, which is favorable for the terminal device to make up the power of the first uplink transmission effectively, and relieves the self-interference influence suffered by the first uplink transmission at the network device, so that the first uplink transmission is received correctly by the network device.
In one possible implementation, a third signaling may also be received prior to receiving the first signaling; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling comprises scheduling information of first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission; the specific implementation mode of determining the transmitting power of the first uplink transmission by the terminal equipment according to the first signaling is as follows: and determining the transmitting power of the first uplink transmission according to the first signaling and the third signaling. In this possible implementation, the first power adjustment information may be an offset with respect to the third power adjustment information, and by indicating that the offset with respect to the third power adjustment information helps to reduce the overhead of the first signaling, the number of bits of the first signaling may be reduced, minimizing the cost.
In one possible implementation, a fourth signaling may also be received, where the fourth signaling includes scheduling information of a second uplink transmission, or the fourth signaling includes scheduling information of a second downlink transmission, where the second uplink transmission is used to transmit feedback information of the second downlink transmission; and determining the transmitting power of the second uplink transmission according to the first signaling, the third signaling and the fourth signaling, wherein the second uplink transmission is positioned after the first uplink transmission in the time domain. Based on this possible implementation, the terminal device can accurately determine the transmit power of the uplink transmission within the full duplex time unit even if there is no explicit information in the signaling sent by the network device to indicate which full duplex time unit it should be applied to.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission. Based on this possible implementation, it can be ensured that the terminal device has enough time to determine and adjust the transmit power of the first uplink transmission.
In one possible implementation, the first power adjustment information indicates a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In a fifth aspect, the present application provides a power determination method, the method comprising: determining first information, wherein the first information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is uplink transmission located in a first full duplex time unit; and sending a first signaling to the terminal equipment, wherein the first signaling is a special control instruction and comprises first information.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, a second signaling may also be sent to the terminal device, where the second signaling does not include uplink scheduling information or downlink scheduling information, and the second signaling includes second information indicating second power adjustment information of the first uplink transmission.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information indicates a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the network device may also send a third signaling to the terminal device; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission; the first power adjustment information may be an offset relative to the third power adjustment information.
Advantageous effects of the fifth aspect and possible implementation manners of the fifth aspect may be referred to advantageous effects of the fourth aspect and possible implementation manners of the fourth aspect, and are not described herein in detail.
In a sixth aspect, the present application provides a method for determining a power ramp value, where the method includes: receiving first information, wherein the first information indicates at least two power ramp values of random access; according to the type of the first time unit and the type of the second time unit, determining a power climbing value used for random access in the second time unit from at least two power climbing values, wherein the type is full duplex or non-full duplex; the first time unit and the second time unit are two adjacent random access opportunities.
Based on the method described in the sixth aspect, the terminal device can accurately determine the power ramp value used for random access, thereby improving the success rate of random access.
In one possible implementation, at least two sub-bands are present on a full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the first time unit is located before the second time unit.
In one possible implementation, the at least two power ramp up values include a first power ramp up value and a second power ramp up value, the first power ramp up value being less than the second power ramp up value;
when the type of the first time unit is not full duplex and the type of the second time unit is full duplex, the power climbing value used by random access is the second power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is not full duplex and the type of the second time unit is not full duplex, the power climbing value used by random access is the first power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is full duplex and the type of the second time unit is not full duplex, the power climbing value used by random access is the first power climbing value; or alternatively, the process may be performed,
When the type of the first time unit is full duplex and the type of the second time unit is full duplex, the power ramp value used by random access is the first power ramp value.
Since interference is large in the full duplex time cell, a larger transmit power is required for random access when switching from the non-full duplex time cell to the full duplex time cell.
In one possible implementation, the first information may explicitly indicate the second power ramp up value, e.g., the first information may directly include the first power ramp up value and the second power ramp up value. Alternatively, the first information may implicitly indicate the second power ramp up value, the first information including the first power ramp up value and an offset of the second power ramp up value relative to the first power ramp up value.
In a seventh aspect, the present application provides a communication apparatus, which may be a terminal device, or an apparatus in a terminal device, or an apparatus that can be used in a matching manner with a terminal device. The communication device may also be a chip system. The communication device may perform the method of the first or second or fourth or sixth aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantages performed by the communication device may be found in the methods and advantages described in the first or second or fourth or sixth aspect above.
In an eighth aspect, the present application provides a communication apparatus, which may be a network device, or an apparatus in a network device, or an apparatus that can be used in a matching manner with a network device. The communication device may also be a chip system. The communication device may perform the method of the third or fifth aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantages performed by the communication device may be found in the methods and advantages described in the third or fifth aspect above.
In a ninth aspect, the present application provides a communications apparatus comprising a processor, the method of any one of the first to sixth aspects being performed when the processor invokes a computer program in memory.
In a tenth aspect, the present application provides a communication device comprising a processor and a memory, the processor and the memory coupled; the processor is configured to implement the method according to any one of the first to sixth aspects.
In an eleventh aspect, the present application provides a communication device comprising a processor, a memory, and a transceiver, the processor and the memory coupled; the transceiver is configured to transmit and receive data, and the processor is configured to implement the method according to any one of the first to sixth aspects.
In a twelfth aspect, the present application provides a communications device comprising a processor and an interface for receiving or outputting signals, the processor being configured to implement a method according to any one of the first to sixth aspects by logic circuitry or execution of code instructions.
In a thirteenth aspect, the present application provides a computer readable storage medium having stored therein a computer program or instructions which, when executed by a communication device, implement a method as in any one of the first to sixth aspects.
In a fourteenth aspect, the present application provides a computer program product comprising instructions which, when read and executed by a computer, cause the computer to perform the method of any one of the first to sixth aspects.
Drawings
Fig. 1 is a schematic diagram of a sub-band full duplex SBFD provided herein;
Fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a time unit relationship according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of uplink scheduling according to an embodiment of the present application;
fig. 5 is a schematic diagram of a downlink scheduling timing sequence provided in the present application;
fig. 6 is a schematic diagram of an uplink scheduling timing sequence provided in the present application;
fig. 7 is a schematic diagram of an uplink scheduling provided in the present application;
fig. 8 is a schematic flow chart of a power determining method according to an embodiment of the present application;
fig. 9 is a schematic diagram of another uplink scheduling provided in the embodiment of the present application;
fig. 10 is a flowchart of another power determining method according to an embodiment of the present application;
fig. 11 is a schematic diagram of still another uplink scheduling provided in an embodiment of the present application;
fig. 12 is a flowchart of another power determining method according to an embodiment of the present application;
fig. 13 is a schematic diagram of still another uplink scheduling provided in an embodiment of the present application;
fig. 14 is a flowchart of another power determining method according to an embodiment of the present application;
fig. 15 is a schematic diagram of still another uplink scheduling provided in an embodiment of the present application;
fig. 16 is a flowchart of another power determining method according to an embodiment of the present application;
Fig. 17 is a flowchart of another power determining method according to an embodiment of the present application;
fig. 18 is a flowchart of another power determining method according to an embodiment of the present application;
fig. 19 is a schematic diagram of still another uplink scheduling provided in an embodiment of the present application;
fig. 20 is a schematic diagram of still another uplink scheduling provided in an embodiment of the present application;
fig. 21 is a flowchart of another power ramp value determining method according to an embodiment of the present application;
fig. 22 is a schematic diagram of a first time unit and a second time unit provided in an embodiment of the present application;
fig. 23 is a schematic diagram of a first time unit and a second time unit provided in an embodiment of the present application;
fig. 24 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 25 is a schematic structural diagram of another communication device according to an embodiment of the present application;
fig. 26 is a schematic structural diagram of a chip according to an embodiment of the present application.
Detailed Description
Specific embodiments of the present application are described in further detail below with reference to the accompanying drawings.
The terms first and second and the like in the description, in the claims and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the present application, "at least one (item)" means one or more, "a plurality" means two or more, and "at least two (items)" means two or three or more, and/or "for describing an association relationship of an association object, three kinds of relationships may exist, for example," a and/or B "may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
For a better understanding of the embodiments of the present application, the following first describes a system architecture related to the embodiments of the present application:
the technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA) systems, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or new radio, NR) future communication systems, and the like.
Fig. 2 is a schematic diagram of a communication system provided in an embodiment of the present application, and a solution in the present application may be applied to the communication system. The communication system may comprise a network device and at least one terminal device, fig. 2 taking the communication system comprising a network device and 3 terminal devices as an example.
1. Terminal equipment
The terminal device comprises a device for providing voice and/or data connectivity to a user, for example, the terminal device is a device with wireless transceiver functions, which can be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The terminal may be a mobile phone, a tablet (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in an industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in a self driving (self driving), a wireless terminal in a remote medical (remote medical), a wireless terminal in a smart grid (smart grid), a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city (smart home), a wireless terminal in a smart home (smart home), a wearable terminal device, or the like. The embodiments of the present application are not limited to application scenarios. A terminal may also be referred to as a terminal device, user Equipment (UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, UE apparatus, or the like. The terminal may also be fixed or mobile. In the embodiment of the present application, the means for implementing the function of the terminal device may be the terminal device, or may be a means capable of supporting the terminal device to implement the function, for example, a chip system or a combination device or a component capable of implementing the function of the terminal device, and the apparatus may be installed in the terminal device.
2. Network equipment
The network device may be a base station (base station), an evolved NodeB (eNodeB), a transmission and reception point (transmission reception point, TRP), a next generation NodeB (gNB) in a fifth generation (5th generation,5G) mobile communication system, a next generation base station in a sixth generation (6th generation,6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The network device may also be a module or unit that performs a function of the base station part, for example, may be a Central Unit (CU) or may be a Distributed Unit (DU). The CU can complete the functions of a radio resource control protocol and a packet data convergence layer protocol (packet data convergence protocol, PDCP) of the base station and can also complete the functions of a service data adaptation protocol (service data adaptation protocol, SDAP); the DU performs the functions of a radio link control layer and a medium access control (medium access control, MAC) layer of the base station, and may also perform the functions of a part of or all of the physical layers. For a detailed description of the various protocol layers described above, reference may be made to the relevant technical specifications of the third generation partnership project (3rd generation partnership project,3GPP). The network device may be a macro base station, a micro base station, an indoor station, a relay node, a donor node, or the like. In this embodiment of the present application, the means for implementing the function of the network device may be the network device itself, or may be a means capable of supporting the network device to implement the function, for example, a chip system or a combination device or a component capable of implementing the function of the access network device, where the apparatus may be installed in the network device. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.
Some terms or terminology used in the embodiments of the present application are explained below.
1. Time cell
The time unit is a time domain unit for signal transmission, and may include a radio frame (radio frame), a subframe (subframe), a mini-subframe, a slot (slot), a mini-slot (mini-slot), or at least one orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, etc. domain unit. The OFDM symbol may also be simply referred to as a time domain symbol. Fig. 3 is a schematic diagram showing one possible time cell relationship in the present application. Referring to fig. 3, the time domain length of one radio frame is 10ms. One radio frame may include 10 radio subframes, and the time domain length of one radio subframe is 1ms. One radio subframe may include one or more slots, and in particular how many slots a subframe includes is related to a Subcarrier spacing (SCS). Alternatively, one radio frame may include 10 slots. The symbol length/slot length is related to SCS. For the case of 15kHz for SCS, the time domain length of one slot is 1ms. One slot includes 14 symbols.
2. Sub-band
The carrier bandwidth (bandwidth) may be regarded as a wideband including at least one bandwidth part (BWP). Each bandwidth portion comprises at least one contiguous subband. Each sub-band comprises at least one contiguous physical resource block (physical resource block, PRB). Alternatively, the carrier bandwidth includes at least one PRB. One or more PRBs consecutive in the frequency domain may be one subband. In the frequency domain, each PRB includes 12 consecutive subcarriers.
3. Full duplex time cell
The full duplex time unit may be referred to as a sub-band full duplex (subband full duplex, SBFD) time unit, or a time-frequency division duplex (X division duplex, XDD) time unit, or the like.
At least two sub-bands exist on the full duplex time unit, and the transmission directions of two sub-bands are different. Wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain. That is, full duplex is full duplex on non-overlapping subbands, or full duplex on partially overlapping subbands, or full duplex on fully overlapping subbands. By introducing different transmission directions on the same time unit, uplink transmission can be made on the carrier for downlink transmission or on the carrier for flexible symbols. Therefore, the uplink capacity is expanded, the time delay required by the terminal equipment for uplink transmission is reduced, the waiting time is shorter, the communication is accelerated, and the service quality is ensured.
For example, taking the example that two subbands do not overlap in the frequency domain. On a full duplex time unit, there is a subband 1 and a subband 2. Subband 1 is used for uplink transmission and subband 2 is used for downlink transmission. Sub-band 1 includes PRB #0 to PRB #9, and sub-band 2 includes PRB #10 to PRB #19.
For another example, two sub-bands overlap in the frequency domain. On a full duplex time unit, there is a subband 1 and a subband 2. Subband 1 is used for uplink transmission and subband 2 is used for downlink transmission. Sub-band 1 includes PRB #0 to PRB #9, and sub-band 2 includes PRB #5 to PRB #14.
For another example, two subbands overlap entirely in the frequency domain. On a full duplex time unit, there is a subband 1 and a subband 2. Subband 1 is used for uplink transmission and subband 2 is used for downlink transmission. The sub-band 1 includes PRB #0 to PRB #9, and the sub-band 2 includes PRB #0 to PRB #9.
4. Closed loop power control
The terminal device determines the transmit power of the uplink transmission based on the network device configured closed loop power control parameters. For example, PUSCH is an example of uplink transmission. How to determine the PUSCH transmit power based on the closed loop power control parameters is described below:
it should be noted that the transmission power of PUSCH described below may be regarded as the transmission power of PUSCH transmitted by the terminal device to cell c in resource unit i. Where the resource unit i may be any resource unit, and the cell c may be any cell served by a network device, e.g. a base station. For convenience of description, c is not referred to in the following formulas of the transmission power of PUSCH.
The terminal device transmits the transmission power P (i, j, q) of PUSCH in resource unit i d N) is:
Figure BDA0003368196620000111
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where j is the configuration { P ] 0 Index of the α } parameter set; n is a configured power control adjustment state index, and n can be 1 or 2 corresponding to different closed loop power control processes; q d Index for Reference Signal (RS) resource; p (P) CMAX (i) Maximum available transmit power for the terminal device; m is M RB (i) Is the bandwidth occupied by the time-frequency resource corresponding to the PUSCH in the resource unit i, and the time-frequency resource can be used as the resourceThe number of blocks (RBs) is in units. Alpha (j) is a semi-static configuration parameter and represents the degree of path loss compensation. PL (q) d ) A path loss value estimated for the UE; delta TF (i) Are delta values indexed for different modulation and coding strategies (modulation and coding scheme, MCS). P (P) 0 (j) The power control parameter which is semi-static configuration represents target power of the terminal equipment and consists of a cell-level power control parameter and a terminal equipment-level power control parameter. f (i, n) is a terminal device specific closed loop power control parameter. Wherein the transmit power control (transmission power control, TPC) is one of the closed loop power control parameters.
The network device may configure the uplink transmit power by configuring the target power and the closed loop power control parameters described above. For example, the network device may configure the terminal device with one or more target powers through radio resource control (radio resource control, RRC) signaling. If the network device configures a plurality of target powers for the terminal device, the network device may dynamically instruct the terminal device to calculate uplink transmit power using which target power of the plurality of target powers through DCI signaling. If the network device only configures a target power for the terminal device, the network device does not need to indicate the target power through DCI signaling, and the terminal device can directly use the target power configured by RRC signaling to calculate uplink transmitting power.
For another example, the network device may dynamically instruct the terminal device, through DCI signaling, which closed-loop power control parameter is used to calculate the uplink transmit power closed-loop power control parameter. Closed loop power control is described in terms of absolute (absolute regulation) and cumulative (relative regulation). The closed loop power control parameter indicated by the DCI signaling may be an absolute value or an offset.
Take the closed loop power control parameter as TPC for example. The "absolute" in absolute power control is represented by: f (i) =tpc. I.e., TPC indicated by the i-th DCI signaling, calculates TPC used for the uplink transmission transmit power for the terminal device.
For example, as shown in fig. 4, it is assumed that time slots 1 to 6 are normal time slots, which are non-full duplex time slots. Time slots 1 to 3 are downlink time slots, and time slots 4 to 6 are uplink time slots. The network device issues DCI signaling 1 to the terminal device 1 in time slot 1, where the DCI signaling 1 is used to schedule PUSCH1 for transmission in time slot 4. The network device issues DCI signaling 2 to the terminal device 1 in time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in time slot 5. The network device issues DCI signaling 3 to the terminal device 1 in slot 3, which DCI signaling 3 is used to schedule PUSCH3 for transmission in slot 6. DCI signaling 1 indicates TPC of 10 db. DCI signaling 2 indicates TPC of 11 db. DCI signaling 3 indicates TPC of 13 db. The terminal device 1 calculates the transmit power of PUSCH1 using TPC of 10db in slot 4. The terminal device 1 calculates the transmit power of PUSCH2 using TPC of 11db in slot 5. The terminal device 1 calculates the transmit power of PUSCH3 using TPC of 13db in slot 6. The values of TPC in all examples in the embodiments of the present application are examples, and do not constitute limitations of the embodiments of the present application.
The "accumulation" in the accumulated power control is embodied in: f (i) =f (i-1) +tpc. That is, the TPC indicated by the i-th DCI signaling is an offset from the TPC indicated by the i-1-th DCI signaling. The TPC indicated by the ith DCI signaling issued by the network device needs to be superimposed on the TPC (i.e. f (i-1)) adjusted by the previous power control, and the TPC (i.e. f (i)) after accumulation is the TPC used by the terminal device to calculate the transmit power of the uplink transmission. Accordingly, the TPC of the last power control adjustment (i.e., f (i-1)) needs to be superimposed on the TPC of the last power control adjustment (i.e., f (i-2)), so f (i) is a value that is sequentially accumulated.
For example, as shown in fig. 4, DCI signaling 1 indicates TPC of 10 db. DCI signaling 2 indicates TPC of 1db, and TPC indicated by the DCI signaling 2 is an offset amount compared to TPC indicated by DCI signaling 1. DCI signaling 3 indicates TPC of 2db, and TPC indicated by DCI signaling 3 is an offset compared to TPC indicated by DCI signaling 2. The terminal device 1 calculates the transmit power of PUSCH1 using TPC of 10db in slot 4. The terminal device 1 calculates the transmit power of PUSCH2 using TPC of 11db in slot 5. The terminal device 1 calculates the transmit power of PUSCH3 using TPC of 13db in slot 6.
5. Group common control signaling
Group common control signaling is control signaling sent to a group of terminal devices. The cyclic redundancy check (cyclic redundancy check, CRC) part of the group common control signaling is scrambled by a group common radio network temporary identity (radio network temporary identifier, RNTI). So that all terminal equipments in the one user group can use the RNTI to descramble the group common control signaling. Alternatively, a group of users configured with the RNTI may use the RNTI to descramble the group common control signaling. The group common control signaling may be group common DCI signaling, or other group common control signaling.
6. Dedicated control signaling
Dedicated control signaling is control signaling sent to one terminal device. The dedicated control signaling may be dedicated DCI signaling, or other dedicated control signaling. Dedicated DCI signaling may be understood as DCI signaling that schedules a UE.
7. Power ramp value
In a wireless communication system, a terminal device and a network device establish a connection, a process commonly referred to as a Random Access (RA) process. From the point of view of the terminal device, the random access procedure may suffer from various problems leading to random access failure. If the random access fails, the terminal equipment re-initiates the random access and performs power ramp up (power ramp), i.e. uses higher power than the previous random access to initiate the random access. The power of the power ramp up increase may be referred to as a power ramp up value.
In the fifth generation new air interface (5th generation new radio,5G NR) technology, the uplink scheduling and the downlink scheduling have different timing (timing) requirements. For example, as shown in FIG. 5, k 0 Is an offset from a downlink slot in which downlink control information (downlink control information, DCI) signaling for scheduling a physical downlink data channel (physical downlink data channel, PDSCH) is transmitted to a downlink slot in which the PDSCH is transmitted. k (k) 1 Is an offset from a downlink slot transmitting the PDSCH to an uplink slot transmitting feedback information of the PDSCH. The feedback information of the PDSCH may be acknowledgement/negative acknowledgement (ACK/NACK). DCI signaling for scheduling PDSCH includes physical uplink control channel carrying the feedback information(physical uplink control channel, PUCCH) power adjustment information. The power adjustment information is used to determine the transmit power of the PUCCH. For example, as shown in FIG. 6, k 2 Is an offset from a downlink slot in which DCI signaling for scheduling a physical uplink data channel (physical uplink data Channel, PUSCH) is transmitted to an uplink slot in which the PUSCH is transmitted. The DCI signaling for scheduling PUSCH includes power adjustment information of the PUSCH. The power adjustment information is used to determine the transmit power of the PUSCH.
Different downlink user equipments (downlink user equipment, DL UEs) in the SBFD time slot may cause different interference to UL UEs in the SBFD time slot. Therefore, DL UEs in SBFD slots are different, and UL UEs should use different power adjustment information in SBFD to determine the transmit power of uplink transmission to reduce interference of neighbor channels to uplink transmission. Due to the general k 0 Less than k 2 I.e. the scheduling time of UL UEs in the SBFD slot is before the scheduling time of DL UEs. This results in the network device being unable to determine the DL UE in the SBFD slot paired with the UL UE when scheduling UL UE in the SBFD slot by DCI signaling. Therefore, the power adjustment information of the uplink transmission included in the DCI signaling is not accurate. For example, as shown in fig. 7, at time slot n-t1, DCI signaling for scheduling PUSCH is transmitted. The DCI signaling is used to schedule the PUSCH to be sent in a time slot n, where the DCI signaling includes power adjustment information of the PUSCH, and the time slot n is an SBFD time slot. Since at time slot n-t1 the network device is still pending which DLUE to schedule for downlink transmission in time slot n, the network device is not sure of the interference that the uplink transmission of time slot n will face. Therefore, the power adjustment information of the PUSCH of the slot n cannot be set correctly. Inaccurate power adjustment information can cause the uplink transmission to suffer from strong self-interference, resulting in reduced gain for full duplex.
In order to avoid strong self-interference on uplink transmission and avoid reducing full duplex gain, the application provides a power determination method and a communication device.
The power determining method and the communication device provided in the embodiments of the present application are further described in detail below.
Fig. 8 is a flow chart of a power determining method according to an embodiment of the present application. As shown in fig. 8, the power determination method includes the following steps 801 to 803. The method execution body shown in fig. 8 may be a first terminal device and a network device. Alternatively, the method execution body shown in fig. 8 may be a chip in the first terminal device and a chip in the network device. Fig. 8 illustrates an example of an execution body of the method of the first terminal device and the network device.
801. The network device determines first information and second information.
The first information indicates a first full duplex time unit, and the second information indicates first power adjustment information of a first uplink transmission, where the first uplink transmission is an uplink transmission located in the first full duplex time unit. For a description of the full duplex time unit, reference is made to the relevant description of the preceding technical terms, which is not repeated here.
In this application, the power adjustment information may be understood as power determination information, power control information or power compensation information.
In one possible implementation, the first uplink transmission may be a transmission of an uplink signal or a transmission of a physical uplink channel or a transmission carried on a physical uplink channel. For example, the transmission of the uplink signal includes transmission of a sounding reference signal (sounding reference signal, SRS). The transmission of the physical uplink channel includes transmission of PUSCH or transmission of PUCCH. The transmission carried on the physical uplink channel includes a transmission carried on PUSCH, a transmission carried on PUCCH, or a transmission of uplink control information (uplink control information, UCI) carried on PUSCH.
In the embodiment of the present application, the network device may further send a third signaling to the first terminal device before determining the first information and the second information. Accordingly, the first terminal device may receive the third signaling. The third signaling may be DCI signaling. The third signaling comprises scheduling information of the first uplink transmission, and the scheduling information of the first uplink transmission comprises third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission includes third power adjustment information of the first uplink transmission.
If the third signaling includes scheduling information of the first uplink transmission, i.e. the third signaling is used for scheduling the first uplink transmission. As an example, the first uplink transmission includes a transmission of SRS, a transmission of PUSCH, or a transmission carried on PUSCH. If the third signaling includes scheduling information for the first downlink transmission, the third signaling is used to schedule the first downlink transmission. As an example, the first downlink transmission includes a transmission of the PDSCH or a transmission carried on the PDSCH. In this case, the first uplink transmission is PUCCH or a transmission carried on PUCCH. Or, the first uplink transmission is a transmission of UCI carried on PUSCH.
In another possible implementation, the network device may not send the third signaling, and the network device may send unauthorized (grant free) scheduling signaling to the first terminal device before determining the first information and the second information. The unlicensed scheduling signaling includes scheduling information for a first uplink transmission. Accordingly, the first terminal device may receive the unlicensed scheduling signaling. The unlicensed scheduling signaling may be RRC signaling, or RRC signaling triggered by DCI. RRC signaling triggered by DCI can also be understood as RRC signaling in combination with DCI signaling. The RRC signaling unlicensed schedule may be a type I unlicensed schedule. The unlicensed scheduling of RRC signaling in combination with DCI signaling may be the unlicensed scheduling of type II. As an example, the first uplink transmission includes a transmission of SRS, a transmission of PUSCH, a transmission carried on PUSCH, a transmission of PUCCH, a transmission carried on PUCCH, or a transmission of UCI carried on PUSCH.
If the network device sends an unlicensed scheduling signaling to the first terminal device, the network device may also send a DCI signaling to the first terminal device, where the DCI signaling carries third power adjustment information of the first uplink transmission. Accordingly, the first terminal device may receive the DCI signaling.
In one possible implementation, the third power adjustment information includes TPC for the first uplink transmission and/or target power for the first uplink transmission. Alternatively, the third power adjustment information may be other parameters for determining the transmission power of the first uplink transmission. The TPC in the third power adjustment information may be an absolute value or an offset. Based on the foregoing description of closed loop power control, TPC in the third power adjustment information is an absolute value in the case of absolute power control. If the power control is the cumulative power control, TPC in the third power adjustment information is an offset.
In one possible implementation, the first power adjustment information includes TPC for the first uplink transmission and/or target power for the first uplink transmission. Alternatively, the first power adjustment information may be other parameters for determining the transmission power of the first uplink transmission. The TPC or target power in the first power adjustment information may be an absolute value or an offset. If the TPC or target power in the first power adjustment information is an offset that is beneficial to reduce the overhead of the first signaling, the number of bits of the first signaling can be reduced, minimizing costs.
Alternatively, if the TPC in the first power adjustment information is an offset, the TPC in the first power adjustment information may be an offset with respect to the TPC in the third power adjustment information.
Alternatively, if the target power in the first power adjustment information is an offset, the target power in the first power adjustment information may be an offset with respect to the target power in the third power adjustment information.
Alternatively, if the RRC signaling configures only one target power value, the target power in the first power adjustment information may be an offset with respect to the target power indicated by the RRC signaling if the target power in the first power adjustment information is an offset.
In one possible implementation, the first terminal device may determine the transmit power of the first uplink transmission based on the first signaling and the third signaling.
For example, if the TPC in the first power adjustment information is an offset relative to the TPC in the third power adjustment information. The first terminal device may superimpose the TPC in the first power adjustment information and the TPC in the third power adjustment information, and calculate the transmit power of the first uplink transmission based on the TPC after the superimposition. Similarly, if the target power in the first power adjustment information is an offset relative to the target power in the third power adjustment information. The first terminal device may superimpose the target power in the first power adjustment information and the target power in the third power adjustment information, and calculate the transmission power of the first uplink transmission based on the superimposed target power.
For example, take TPC in the third power adjustment information as an offset. As an example, as shown in fig. 9, slots 1 to 5 and 7 are normal slots, which are non-full duplex slots. Slot 6 is a full duplex slot. Of course, slots 1-5 and 7 may not all be non-full duplex slots, i.e., one or more of the slots may be full duplex slots. The network device issues a DCI signaling 1 to the terminal device 1 in the time slot 1, where the DCI signaling 1 is used to schedule PUSCH1 for transmission in the time slot 5, TPC indicated by the DCI signaling 1 is 10db, and target power indicated by the DCI signaling 1 is 12db.
The network device issues a DCI signaling 2 to the terminal device 1 in the time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in the time slot 6, the TPC indicated by the DCI signaling 2 is 2db, and the TPC indicated by the DCI signaling 2 is an offset compared with the TPC indicated by the DCI signaling 1. The DCI signaling 2 indicates a target power of 14db.
The network device determines that the terminal device 2 and the terminal device 3 are to be scheduled for downlink transmission in the time slot 4 and determines that TPC and/or target power indicated by the DCI signaling 2 is inaccurate and causes a deviation in consideration of self-interference of the terminal device 2 and the terminal device 3 to the PUSCH2 in the time slot 6. Thus, the network device issues a DCI signaling 3 to the terminal device 1 in slot 4, the DCI signaling 3 indicating the TPC of 2db and slot 6 in which the TPC is applied; alternatively, the DCI signaling 3 indicates a target power of 3db and a slot 6 to which the target power is applied; alternatively, the DCI signaling 3 indicates a TPC of 2db and a target power of 3db and a slot 6 to which the TPC and target power are applied. The TPC indicated by DCI signaling 3 is an offset compared to the TPC indicated by DCI signaling 2. The target power indicated by DCI signaling 3 is an offset from the target power indicated by DCI signaling 2.
If the DCI signaling 3 indicates the TPC of 2db and the slot 6 to which the TPC is applied, the terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2 and the TPC indicated by the DCI signaling 3. The accumulated TPC was found to be 14db. The first terminal device calculates the transmit power of PUSCH2 using TPC of 14db.
If the DCI signaling 3 indicates a target power of 3db and a slot 6 to which the target power is applied, the terminal device 1 integrates the target power indicated by the DCI signaling 2 and the target power indicated by the DCI signaling 3. The accumulated target power was 17db. The first terminal device calculates the transmit power of PUSCH2 using the target power of 17db.
If DCI signaling 3 indicates a TPC of 2db and a target power of 3db and a slot 6 to which the TPC and target power are applied. Terminal device 1 integrates TPC indicated by DCI signaling 1, TPC indicated by DCI signaling 2, and TPC indicated by DCI signaling 3. The accumulated TPC was found to be 14db. The terminal device 1 integrates the target power indicated by the DCI signaling 2 and the target power indicated by the DCI signaling 3. The accumulated target power was 17db. The first terminal device calculates the transmit power of PUSCH2 using TPC of 14db and target power of 17db.
The TPC values and target power values in all examples in the embodiments of the present application are examples, and do not constitute limitations of the embodiments of the present application.
In the application, when the frequency bands are completely overlapped, the self-interference can be interference generated by the simultaneous same-frequency transmission and reception; when the frequency bands are not overlapped, the self-interference can be adjacent channel interference generated by simultaneous transmission and reception of different frequencies; when the frequency bands are partially overlapped, the self-interference can include both interference generated by the simultaneous same-frequency transmission and adjacent channel interference generated by the simultaneous different-frequency transmission. Self-interference is also understood to be non-linear interference in this application.
For another example, take TPC in the third power adjustment information as an absolute value. As shown in fig. 9, the network device issues, to the terminal device 1 in the slot 2, a DCI signaling 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in the slot 6, TPC indicated by the DCI signaling 2 is 12db, and target power indicated by the DCI signaling 2 is 14db.
The network device determines that the terminal device 2 and the terminal device 3 are to be scheduled for downlink transmission in the time slot 4 and considers that TPC and/or target power indicated by the DCI signaling 2 is inaccurate and causes deviation in consideration of self-interference of the terminal device 2 and the terminal device 3 to the PUSCH2 in the time slot 6. Thus, the network device issues a DCI signaling 3 to the terminal device 1 in time slot 4, the DCI signaling 3 indicating a TPC of 2db and/or a target power of 3db and time slot 6 for the TPC and/or the target power application. The TPC indicated by DCI signaling 3 is an offset compared to the TPC indicated by DCI signaling 2. The target power indicated by DCI signaling 3 is an offset from the target power indicated by DCI signaling 2.
The terminal device 1 integrates the TPC indicated by the DCI signaling 2 and the TPC indicated by the DCI signaling 3 to obtain the integrated TPC of 14db, and/or the terminal device 1 integrates the target power indicated by the DCI signaling 2 and the target power indicated by the DCI signaling 3 to obtain the integrated target power of 17db. The first terminal device calculates the transmit power of PUSCH2 using TPC of 14db and/or target power of 17db.
In one possible implementation, if the target power in the first power adjustment information is an offset relative to the target power indicated by the RRC signaling. The first terminal device may superimpose the target power in the first power adjustment information and the target power indicated by the RRC signaling, and calculate the transmit power of the first uplink transmission based on the superimposed target power.
For example, assuming that the target power indicated by the RRC signaling is 10db and the target power in the first power adjustment information is 2db, the first terminal device superimposes the target power indicated by the RRC signaling and the target power in the first power adjustment information, so as to obtain the superimposed target power of 12db. The first terminal device calculates a transmit power of the first uplink transmission based on the target power of 12db.
In one possible implementation, if the TPC in the first power adjustment information is an absolute value, the first terminal device does not superimpose the TPC in the first power adjustment information with the TPC in the third power adjustment information. If the target power in the first power adjustment information is an absolute value, the first terminal device does not need to superimpose the target power in the first power adjustment information with the target power in the third power adjustment information or the RRC signaling.
For example, as shown in fig. 9, the network device issues, to the terminal device 1 in the slot 2, DCI signaling 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in the slot 6, and TPC indicated by the DCI signaling 2 is 12db, and the target power is 14db. The network device determines that the terminal device 2 and the terminal device 3 are to be scheduled for downlink transmission in the time slot 4 and considers that TPC and/or target power indicated by the DCI signaling 2 is inaccurate in consideration of self-interference generated by the terminal device 2 and the terminal device 3 on the PUSCH2 in the time slot 6. Thus, the network device issues a DCI signaling 3 to the terminal device 1 in slot 4, the DCI signaling 3 indicating that the TPC is 14db and/or the target power is 17db, and slot 6 in which the TPC and/or the target power is applied. The terminal device 1 directly uses the TPC of 14db and/or the target power of 17db to calculate the transmit power of PUSCH 2.
802. The network device sends a first signaling to the first terminal device, the first signaling comprising first information and second information. Accordingly, the first terminal device may receive the first signaling.
In the embodiment of the present application, the first signaling is not used for scheduling. Optionally, the first signaling does not include uplink scheduling information or downlink scheduling information. The first signaling is transmitted after the third signaling.
In one possible implementation, the first signaling is a group common control instruction. The description of the group common control command and the dedicated control command can be found in the foregoing description, and is not repeated here. Because the group common control signaling is sent to a group of terminal devices instead of user specific (UE-specific), the problem of large signaling overhead caused by the fact that the network device generates different signaling for each terminal device in the terminal device group respectively is avoided, and the signaling overhead of the network device is reduced.
In one possible implementation, the first signaling is a dedicated control instruction. The description of the dedicated control signaling is referred to in the foregoing description and is not repeated here.
For example, if the first signaling is a group common control instruction, the first signaling is used for one terminal device group, which includes the first terminal device, the second terminal device, and the third terminal device, and the network device sends the first signaling to the first terminal device, the second terminal device, and the third terminal device. If the first signaling is a dedicated control instruction, the network device only sends the first signaling to the first terminal device.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1. The power adjustment information field is used for carrying first power adjustment information. Based on this possible implementation, it is possible to accurately indicate its corresponding power adjustment information to a plurality of terminal devices.
For example, N is 6. The second information includes power adjustment information fields 1 to 3. The power adjustment information field 1 is used to carry first power adjustment information 1 for a first uplink transmission 1 on sub-band 1 and sub-band 2. The power adjustment information field 2 is used to carry first power adjustment information 2 for a first uplink transmission 2 on the sub-band 3 and sub-band 4. The power adjustment information field 3 is used to carry first power adjustment information 3 for a first uplink transmission 3 on the sub-band 5 and sub-band 6.
Assuming that the first uplink transmission of the first terminal device is located in sub-band 1 and sub-band 2, the first terminal device reads the first power adjustment information from the power adjustment information field 1. Assuming that the first uplink transmission of the first terminal device is located in sub-band 3 and sub-band 4, the first terminal device reads the first power adjustment information from the power adjustment information field 2. Assuming that the first uplink transmission of the first terminal device is located in sub-band 5 and sub-band 6, the first terminal device reads the first power adjustment information from the power adjustment information field 3.
For another example, N is 3. The second information includes power adjustment information fields 1 to 3. The power adjustment information field 1 is used to carry first power adjustment information 1 for a first uplink transmission 1 on the sub-band 1. The power adjustment information field 2 is used to carry first power adjustment information 2 for a first uplink transmission 2 on the sub-band 2. The power adjustment information field 3 is used to carry first power adjustment information 3 for a first uplink transmission 3 on the sub-band 3.
Assuming that the first uplink transmission of the first terminal device is located in subband 1, the first terminal device reads the first power adjustment information from the power adjustment information field 1. Assuming that the first uplink transmission of the first terminal device is located in sub-band 2, the first terminal device reads the first power adjustment information from the power adjustment information field 2. Assuming that the first uplink transmission of the first terminal device is located in sub-band 3, the first terminal device reads the first power adjustment information from the power adjustment information field 3.
The manner in which the first information indicates the first full duplex time cell is described as follows:
1. display indication
For example, if the first information indicates the first full duplex time unit, the first information may directly include an index of the first full duplex time unit.
2. Implicit indication
(1) The first information includes a time cell offset from T1 to T2, T1 being the time cell in which the first signaling carrying the first information and the second information is transmitted, and T2 being the first full duplex time cell. That is, the first information implicitly indicates the first full duplex time unit by indicating an offset of the time unit transmitting the first signaling to the first full duplex time unit. The first full duplex time unit is indicated by the time unit offset of T1 to T2, so that the first full duplex time unit can be effectively indicated, the first terminal equipment can know the time unit for accurately applying the first power adjustment information, and the first full duplex time unit is indicated by the time unit offset of T1 to T2, thereby being beneficial to reducing the overhead of the first signaling, reducing the bit number of the first signaling and minimizing the cost.
For example, the network device sends the first signaling in the 5 th slot, the first full duplex time unit is the 8 th slot, and the first information includes an offset of 3 slots. The first terminal device can determine a first full duplex time cell based on the time slot in which the first signaling is received and the offset.
(2) The first signaling is dedicated control signaling, and the first information includes a hybrid automatic repeat request (hybrid automatic repeat request, HARQ) process number corresponding to a first full duplex time unit. That is, the first information indicates the first full duplex time unit by indicating the HARQ process number. The first full duplex time unit is indicated by the HARQ process number, which may be indicated without introducing any new reference information.
The HARQ process number corresponds to a time unit, indicating that the data transmission corresponding to the HARQ process number is located in the time unit. The first terminal equipment can determine a time unit in which data corresponding to a certain HARQ process number is transmitted based on the HARQ process in the effective period. The effective period refers to the continuous scheduling time of the maximum number of HARQ processes, and the situation that a plurality of data with the same HARQ process number cannot be accurately distinguished and applicable can not occur by limiting the time unit of the uplink transmission corresponding to a certain HARQ process number determined based on the HARQ processes in the effective period.
For example, suppose HARQ process number 1 corresponds to slot 1, HARQ process number 2 corresponds to slot 2, and HARQ process number 3 corresponds to slot 3. If the first information includes HARQ process number 2, the first information indicates that the first full duplex time unit is slot 2. As an example, HARQ process number 2 corresponds to slot 2, meaning that the corresponding data transmission for HARQ process number 2 is located in slot 2. I.e. if the third signalling scheduled data transmission is in slot 2, the third signalling comprises HARQ process number 2, then HARQ process number 2 corresponds to slot 2. In this case, if the first information in the first signaling includes HARQ process number 2 implicitly indicates slot 2.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission. In this application, the power adjustment delay may also be understood as a processing delay or a preparation delay. As shown in fig. 9, assuming that the first full duplex time unit is time slot 6, the first terminal device needs to adjust the transmission power of the first uplink transmission before sending the first uplink transmission, and assuming that the power adjustment delay Δt for adjusting the first uplink transmission is 2 time slots, the first signaling should be transmitted before time slot 5. Based on this possible implementation, it can be ensured that the first terminal device has sufficient time to determine and adjust the transmit power of the first uplink transmission.
The first signaling has the following two issuing opportunities:
1. when the network equipment determines that all the terminal equipment used for downlink transmission in the first full duplex time unit is finished, the network equipment determines first information and second information and issues a first signaling. The network device does not exceed T2- Δt at the latest to issue the first signaling, thereby ensuring that the first terminal device has enough time to determine and adjust the transmit power of the first uplink transmission. That is, the network device determines all the interference in the first full duplex time unit before issuing a signaling to adjust the transmission power of the first uplink transmission. In this manner, the network device only issues one signaling to indicate the power adjustment information of the first uplink transmission, which is advantageous in saving the indication overhead.
In the present application, the network device issues the first signaling not exceeding T2- Δt at the latest, which can be understood as that the network device issues the first signaling in the first few symbols of the corresponding time slot not exceeding T2- Δt.
For example, taking the first power adjustment information as an offset relative to the third power adjustment information, the power adjustment delay Δt of the first uplink transmission is exemplified by 2 slots. As shown in fig. 9, the network device issues DCI signaling 2 to the terminal device 1 in time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in time slot 6. After the network device sends the DCI signaling 2, it is determined in the time slot 3 that the terminal devices 2 to 3 are used for downlink transmission in the time slot 6. The network device determines again in time slot 4 that terminal device 4-5 are used for downlink transmission in time slot 6. After the network device determines that the terminal devices 2 to 5 are used for downlink transmission in the time slot 6 in the time slot 4, the network device sends a DCI signaling 3, where the DCI signaling 3 indicates that TPC is 4db and/or target power is 6db, and indicates that TPC and/or target power is applied to the time slot 6. The terminal device 1 superimposes the TPC indicated by the DCI signaling 3 and the TPC indicated by the DCI signaling 2, and/or the terminal device 1 superimposes the target power indicated by the DCI signaling 3 and the target power indicated by the DCI signaling 2, and determines the transmit power of the PUSCH2 based on the TPC after the superimposition and/or the target power after the superimposition.
2. When the network device determines the terminal device for downlink transmission in the first full duplex time unit, the network device determines the first information and the second information, and issues a first signaling. The network device may further send a second signaling to the first terminal device after the first signaling is issued, the second signaling including third information indicating the first full duplex time unit and fourth information indicating second power adjustment information of the first uplink transmission. The second power adjustment information is an offset relative to the first power adjustment information. After the first terminal device receives the first signaling and the second signaling, determining the transmitting power of the first uplink transmission based on the first signaling and the second signaling. For example, as shown in step 1003 and step 1004 of fig. 10. The implementation manner of other steps in fig. 10 is the same as that of the corresponding steps in fig. 8, and is not repeated here.
The network device issues the first signaling and the second signaling not exceeding T2- Δt at the latest, thereby ensuring that the first terminal device has enough time to determine and adjust the transmission power of the first uplink transmission. In the present application, the network device issues the first signaling and the second signaling up to the latest not exceeding T2- Δt, which can be understood as that the network device issues the first signaling and the second signaling in the first several symbols of the corresponding time slot not exceeding T2- Δt.
In the second first signaling issuing occasion, the network device may issue the power adjustment information of the first uplink transmission to the first terminal device multiple times. If the network device determines that all the terminal devices for downlink transmission in the first full duplex time unit have been determined, the network device issues the power adjustment information for the first uplink transmission to the first terminal device, and the network device may face insufficient downlink resources for sending the power adjustment information, or may not ensure that the first terminal device has enough time to determine and adjust the transmission power of the first uplink transmission after receiving the power adjustment information for the first uplink transmission. Therefore, the first terminal device may not perform effective power compensation on the first uplink transmission, and may not alleviate the self-interference effect suffered by the first uplink transmission at the network device, where the first uplink transmission may not be received correctly by the network device. If the network device issues the power adjustment information of the first uplink transmission to the first terminal device for multiple times, the network device may issue the power adjustment information of the first uplink transmission in time when determining that the downlink transmission will have a self-interference effect on the first uplink transmission, so as to ensure that sufficient issuing resources are available for sending the power adjustment information, and ensure that the first terminal device has sufficient time to determine and adjust the transmission power of the first uplink transmission after receiving the power adjustment information of the first uplink transmission. Therefore, the first terminal device is beneficial to effectively compensating the power of the first uplink transmission, and the self-interference influence suffered by the first uplink transmission at the network device is relieved, so that the first uplink transmission is correctly received by the network device.
For example, taking the first power adjustment information as an offset relative to the third power adjustment information, the power adjustment delay Δt of the first uplink transmission is exemplified by 2 slots. As shown in fig. 11, the network device issues DCI signaling 2 to the terminal device 1 in time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in time slot 6. After the network device sends the DCI signaling 2, it is determined in the time slot 3 that the terminal devices 2 to 3 are used for downlink transmission in the time slot 6. The network device transmits DCI signaling 3 to the terminal device 1 in time slot 3, the DCI signaling 3 indicating that the TPC is 2db and/or the target power is 3db, and time slot 6 indicating that the TPC and/or the target power is applied. The network device determines again in time slot 4 that terminal device 4-5 are used for downlink transmission in time slot 6. The network device transmits DCI signaling 4 in slot 4, the DCI signaling 4 indicating TPC of 2db and/or target power of 3db, and slot 6 indicating the TPC and/or target power application. The first terminal equipment overlaps TPC indicated by DCI signaling 2, TPC indicated by DCI signaling 3 and TPC indicated by DCI signaling 4, and/or overlaps target power indicated by DCI signaling 2, target power indicated by DCI signaling 3 and target power indicated by DCI signaling 4, and determines the transmitting power of PUSCH2 based on the overlapped TPC and/or target power after overlapping.
For another example, taking the first power adjustment information as an absolute value, the power adjustment delay Δt of the first uplink transmission is 2 timeslots. As shown in fig. 11, the network device issues DCI signaling 2 to the terminal device 1 in time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in time slot 6. After the network device sends the DCI signaling 2, it is determined in the time slot 3 that the terminal devices 2 to 3 are used for downlink transmission in the time slot 6. The network device transmits DCI signaling 3 to the terminal device 1 in time slot 3, the DCI signaling 3 indicating that the TPC is 10db and/or the target power is 10db, and time slot 6 indicating that the TPC and/or the target power is applied. The network device determines again in time slot 4 that terminal device 4-5 are used for downlink transmission in time slot 6. The network device transmits DCI signaling 4 in slot 4, the DCI signaling 4 indicating TPC of 2db and/or target power of 3db and slot 6 indicating the TPC and/or the target power application. The first terminal equipment overlaps the TPC indicated by the DCI signaling 3 with the TPC indicated by the DCI signaling 4 to obtain the overlapped TPC of 12db, and/or overlaps the target power indicated by the DCI signaling 3 with the target power indicated by the DCI signaling 4 to obtain the overlapped target power of 13db. The first terminal device determines the transmit power of PUSCH2 based on TPC after superposition and/or target power after superposition.
The network device may configure two sets of power adjustment information in advance at the first terminal device. And when the network equipment determines to adopt the first signaling issuing opportunity, the first power adjustment information is used. And when the network equipment determines to adopt the second first signaling sending time, using the second set of power adjustment information. The power adjustment information range corresponding to the first set of power adjustment information is larger than the power adjustment information range corresponding to the second set of power adjustment information. The network device may signal which set of power adjustment information the first terminal device uses. For example, the signaling may be RRC signaling.
Take power adjustment information as TPC for example. As one example, a first set of power adjustment information for a network device configuration is shown in table 1 below. The network device may configure an index (index) corresponding to the TPC in addition to configuring the TPC. The network device may indicate the value of the corresponding TPC by indicating the index. In this application, an index is also understood as a sequence number.
TABLE 1
Index TPC
1 3
2 6
3 9
4 12
5 15
6 18
As another example, a first set of power adjustment information for a network device configuration is shown in table 2 below. The network device may directly configure a series of values of TPC without configuring an index corresponding to TPC. The index to which the TPC corresponds may be implicitly derived from the order, not shown. That is, the index corresponding to the first value is 1, the index corresponding to the second value is 2, and so on.
TABLE 2
TPC
3
6
9
12
15
18
As one example, a second set of power adjustment information for the network device configuration is shown in table 3 below. The network device may configure the index corresponding to the TPC in addition to configuring the TPC. The network device may indicate the value of the corresponding TPC by indicating the index.
TABLE 3 Table 3
Index TPC
1 1
2 3
3 5
4 6
5 7
6 8
As another example, a second set of power adjustment information for the network device configuration is shown in table 4 below. The network device may not configure the TPC index, which may be implicitly derived from the sequence, not shown.
TABLE 4 Table 4
TPC
1
3
5
6
7
8
In case the network device determines to employ the first signaling of the first type, the network device determines to use the first set of power adjustment information. As shown in fig. 9, when the network device determines that the terminal devices 2 to 5 are used for downlink transmission in the time slot 4 (the first full duplex time), the network device determines that the terminal devices 2 to 5 have an interference effect on the terminal device 1, and determines that the terminal device 1 needs to increase a power value, so as to compensate for a signal-to-noise ratio decrease caused by self-interference generated by the terminal devices 2 to 5 on the terminal device 1. And when the power value required to be lifted is larger than or equal to the minimum TPC in the first set of power adjustment information, the network equipment determines the first power adjustment information. Or when the power value to be boosted is greater than or equal to at least one TPC in the first set of power adjustment range values, the network device determines the first power adjustment information. As an example, as shown in table 1, when the power value to be boosted is greater than or equal to 9 and less than 12, the network device determines the first power adjustment information to be 9db. The network device generates first information indicating the time slot 6 and second information, which may be index 3 in the first set of power adjustment information tables, indicating that the first power adjustment information is 9db. The network device transmits first signaling (i.e., DCI signaling 3 of fig. 9) including first information and second information to the terminal device 1.
And in the case that the network equipment determines to adopt the sending time of the second first signaling, the network equipment determines to use the second set of power adjustment information. As shown in fig. 11, when the network device determines that the terminal devices 2 to 3 are used for downlink transmission in the time slot 3 (the first full duplex time), the network device determines that the terminal devices 2 to 3 have an interference effect on the terminal device 1, and the network device determines that the terminal device 1 needs to increase a power value to compensate for a signal-to-noise ratio decrease caused by self-interference generated by the terminal devices 2 to 3 on the terminal device 1. And when the power value required to be lifted is larger than or equal to the minimum TPC in the second set of power adjustment information, the network equipment determines the first power adjustment information. Or when the power value to be boosted is greater than or equal to at least one TPC in the second set of power adjustment range values, the network device determines the first power adjustment information. As an example, as shown in table 3, when the power value to be boosted is greater than or equal to 3 and less than 5, the network device determines the first power adjustment information to be 3db. The network device generates first information indicating time slot 6 and second information, which may be index 2 in the second set of power adjustment information tables, indicating that the first power adjustment information is 3db. The network device transmits first signaling (i.e., DCI signaling 3 of fig. 11) including first information and second information to the terminal device 1.
In this application, the first signaling comprising the first information and the second information may be understood as the first signaling comprising only the first information and the second information. And so on, the network device determines in time slot 4 that the terminal devices 4-5 are used for downlink transmission in time slot 6. When the network device determines that the first terminal device 2 to the terminal device 3 are used for downlink transmission in the time slot 4 (the first full duplex time), the network device determines that the terminal device 2 to the terminal device 3 have interference influence on the terminal device 1, and the network device determines that the terminal device 1 needs to increase a power value to compensate for the decrease of a signal to noise ratio caused by self-interference generated by the terminal device 2 to the terminal device 3 on the terminal device 1. And when the power value to be lifted is larger than or equal to the minimum TPC in the second set of power adjustment range values, the network equipment correspondingly determines second power adjustment information. Or when the power value to be boosted is greater than or equal to at least one TPC in the second set of power adjustment range values, the network device determines the second power adjustment information accordingly. As an example, when the power value to be boosted is greater than or equal to 5 and less than 6, the network device determines the second power adjustment information to be 5db. The network device generates third information indicating time slot 6 and fourth information, which may be index 3 in the second set of power adjustment information tables, indicating that the second power adjustment information is 5db. The network device transmits second signaling (i.e., DCI signaling 4 of fig. 11) including third information and fourth information to the terminal device 1.
803. And the first terminal equipment determines the transmitting power of the first uplink transmission according to the first signaling.
In this embodiment of the present application, after receiving the first signaling, the first terminal device determines, according to the first signaling, a transmission power of the first uplink transmission. How the first terminal device determines the transmission power of the first uplink transmission according to the first signaling may be described in the foregoing, which is not repeated here.
It can be seen that, based on the method described in fig. 8, the network device can timely issue signaling to the first terminal device to adjust the transmission power of the first uplink transmission of the first terminal device in the first full duplex time unit after determining the terminal device for downlink transmission in the first full duplex time unit, which is beneficial to avoiding strong self-interference of the first uplink transmission and reducing the gain of full duplex.
Fig. 12 is a flowchart of another power determining method according to an embodiment of the present application. As shown in fig. 12, the power determination method includes the following steps 1201 to 1206. The method execution body shown in fig. 12 may be a first terminal device and a network device. Alternatively, the method execution body shown in fig. 12 may be a chip in the first terminal device and a chip in the network device. Fig. 12 illustrates an example of an execution body of the method of the first terminal device and the network device.
1201. The network device sends a third signaling to the first terminal device.
The third signaling comprises scheduling information of the first uplink transmission, and the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission. For a description of the third signaling, reference may be made to the description in the embodiment of the method corresponding to fig. 8, which is not repeated here.
1202. The network device determines first information and second information.
The first information indicates a first full duplex time unit, and the second information indicates first power adjustment information of a first uplink transmission, where the first uplink transmission is an uplink transmission located in the first full duplex time unit.
1203. The network device sends a first signaling to the first terminal device, the first signaling comprising first information and second information. Accordingly, the first terminal device may receive the first signaling.
1204. And the first terminal equipment determines the transmitting power of the first uplink transmission according to the first signaling and the third signaling.
The specific implementation manner of steps 1202 to 1204 may be referred to the description in the embodiment corresponding to fig. 8, and is not repeated here.
1205. The network device sends fourth signaling to the first terminal device. Accordingly, the first terminal device may receive the fourth signaling.
The fourth signaling includes scheduling information of the second uplink transmission, or the fourth signaling includes scheduling information of the second downlink transmission, where the second uplink transmission is used to transmit feedback information of the second downlink transmission. The second uplink transmission is located temporally after the first uplink transmission. The scheduling information in the fourth signaling indicates fourth power adjustment information.
1206. And the first terminal equipment determines the transmitting power of the second uplink transmission according to the third signaling and the fourth signaling.
In this embodiment of the present application, the first signaling is not used to determine the transmit power of the second uplink transmission. I.e. the first signalling is only valid for uplink transmissions in the first full duplex time unit and is not valid for uplink transmissions after the first full duplex time unit.
For example, the power adjustment information indicated by the third signaling and the fourth signaling is taken as an offset. As shown in fig. 13, the network device issues DCI signaling 1 to the terminal device 1 in time slot 1, where the DCI signaling 1 is used to schedule PUSCH1 for transmission in time slot 5. The TPC indicated by the DCI signaling 1 is 10db. The DCI signaling 1 indicates a target power of 10db.
The network device issues DCI signaling 2 to the terminal device 1 in time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in time slot 6. The TPC indicated by the DCI signaling 2 is 2db, and the TPC indicated by the DCI signaling 2 is an offset compared to the TPC indicated by the DCI signaling 1. The DCI signaling 2 indicates a target power of 11db.
The network device issues DCI signaling 3 to the terminal device 1 in slot 3, which DCI signaling 3 is used to schedule PUSCH3 for transmission in slot 7. The TPC indicated by the DCI signaling 3 is 2db, and the TPC indicated by the DCI signaling 3 is an offset compared to the TPC indicated by the DCI signaling 2. The DCI signaling 3 indicates a target power of 12db.
The network device determines that the terminal device 2 and the terminal device 3 are to be scheduled for downlink transmission in the time slot 4 and considers that TPC indicated by the DCI signaling 2 is inaccurate in consideration of self-interference of the terminal device 2 and the terminal device 3 to the PUSCH2 in the time slot 6. Thus, the network device issues a DCI signaling 4 to the terminal device 1 in time slot 4, the DCI signaling 4 indicating a TPC of 3db and/or a target power of 3db and time slot 6 for which the TPC and/or target power is applied. The TPC indicated by DCI signaling 4 is an offset compared to the TPC indicated by DCI signaling 2. The target power indicated by DCI signaling 4 is an offset from the target power indicated by DCI signaling 2.
The terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2 and the TPC indicated by the DCI signaling 4 to obtain an integrated TPC of 15db, and/or the terminal device 1 integrates the target power indicated by the DCI signaling 2 and the target power indicated by the DCI signaling 4 to obtain an integrated target power of 14db. The terminal device 1 calculates the transmit power of PUSCH2 using TPC of 15db and/or target power of 14db.
The terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2, and the TPC indicated by the DCI signaling 3 to obtain an integrated TPC of 14db. The terminal device 1 calculates the transmit power of the PUSCH3 using the TPC of 14db and the target power of 12 db. The terminal device 1 does not accumulate TPC indicated by the DCI signaling 3 and TPC indicated by the DCI signaling 4.
It can be seen that, based on the method described in fig. 12, it is possible to avoid influencing the transmission power of the uplink transmission after the first uplink transmission after adjusting the transmission power of the first uplink transmission in the first full duplex time unit. Therefore, based on the method described in fig. 12, the transmit power of the uplink transmission in a certain full duplex time unit can be adjusted in a targeted manner.
Fig. 14 is a flowchart of another power determining method according to an embodiment of the present application. As shown in fig. 14, the power determination method includes the following steps 1401 to 1405. The method execution body shown in fig. 14 may be a first terminal device, a second terminal device, and a network device. Alternatively, the method execution body shown in fig. 14 may be a chip in the first terminal device, a chip in the second terminal device, and a chip in the network device. Fig. 14 illustrates an example of an execution body of the method of the first terminal device, the second terminal device, and the network device.
1401. The network device determines first information and second information.
The first information indicates a first full duplex time unit, and the second information indicates first power adjustment information of a first uplink transmission, where the first uplink transmission is an uplink transmission located in the first full duplex time unit.
1402. The network device sends a first signaling to the first terminal device and the second terminal device, the first signaling including first information and second information. Accordingly, the first terminal device and the second terminal device may receive the first signaling.
In this embodiment of the present application, the first signaling is a group common control instruction. The first terminal device and the second terminal device belong to a terminal device group. Alternatively, both the first terminal device and the second terminal device are configured with an RNTI for resolving the first signaling. Therefore, both the first terminal device and the second terminal device may receive the first signaling.
1403. And the first terminal equipment determines the transmitting power of the first uplink transmission according to the first signaling.
The specific implementation manner of steps 1401 to 1403 may be referred to the description in the embodiment corresponding to fig. 8, and will not be repeated here.
1404. The network device sends a fifth signaling to the second terminal device. Accordingly, the second terminal device may receive the fifth signaling.
The fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission. The third uplink transmission is located in a second time unit, the second time unit being different from the first full duplex time unit. The fifth signaling may be transmitted prior to the first full duplex time unit.
Optionally, the second time unit is a full duplex time unit or a non-full duplex time unit. Throughout the embodiments of the present application, a non-full duplex time cell may be understood as a time cell that is not configured for full duplex.
1405. The second terminal device determines a transmit power of the third uplink transmission. Wherein the first signaling is not used to determine the transmit power of the third uplink transmission.
Optionally, the second terminal device may determine the transmission power of the third uplink transmission based on the fifth signaling. Alternatively, the second terminal device may determine the transmission power of the third uplink transmission based on other signaling than the first signaling.
Optionally, when the second time unit is different from the first full duplex time unit, the second terminal device determines that the first signaling is not used to determine the transmit power of the third uplink transmission. That is, after the second terminal device receives the fifth signaling, it is determined whether the third uplink transmission is in the first full duplex time unit, and if not, the first signaling is not used to determine the transmit power of the third uplink transmission. Alternatively, the second terminal device may discard the first signaling.
For example, as shown in fig. 15, the network device transmits DCI signaling 1 to the terminal device 2 in time slot 2, the DCI signaling 1 is used to schedule PUSCH1 for transmission in time slot 6, and indicates TPC and target power. The network device transmits DCI signaling 2 in slot 3 to terminal device 1 and terminal device 2, the DCI signaling 2 indicating the TPC and/or target power and slot 5 where the TPC and/or target power is applied. After the terminal device 2 receives the DCI signaling 1 and the DCI signaling 2, it is determined that the time slot in which the PUSCH1 is located is different from the time slot indicated by the DCI signaling 2, and the terminal device 2 determines that TPC indicated by the DCI signaling 2 is not used to determine the transmit power of the PUSCH 1. Terminal device 2 may determine the transmit power of PUSCH1 using TPC and target power indicated by DCI signaling 1.
It can be seen that, based on the method described in fig. 14, after the terminal device receives the first signaling of the multicast, if the second uplink transmission in the terminal device is not in the full duplex time unit indicated by the first signaling, the first signaling is not used to determine the transmit power of the second uplink transmission, so that the terminal device can accurately determine the transmit power of the second uplink transmission.
Fig. 16 is a flowchart of another power determining method according to an embodiment of the present application. As shown in fig. 16, the power determination method includes the following steps 1601 to 1603. The method execution body shown in fig. 16 may be a terminal device and a network device. Alternatively, the method execution body shown in fig. 16 may be a chip in the terminal device and a chip in the network device. Fig. 16 illustrates an execution body of the method by taking a terminal device and a network device as examples.
1601. The network device determines first information.
The first information indicates first power adjustment information of a first uplink transmission, where the first uplink transmission is an uplink transmission located in a first full duplex time unit. For a description of the full duplex time unit, reference is made to the relevant description of the preceding technical terms, which is not repeated here.
In this application, the power adjustment information may be understood as power determination information, power control information or power compensation information.
In one possible implementation, the first uplink transmission may be a transmission of an uplink signal or a transmission of a physical uplink channel or a transmission carried on a physical uplink channel. For example, the transmission of the uplink signal includes transmission of SRS. The transmission of the physical uplink channel includes transmission of PUSCH or transmission of PUCCH. The transmission carried on the physical uplink channel includes a transmission carried on PUSCH, a transmission carried on PUCCH, or a transmission of UCI carried on PUSCH.
In the embodiment of the present application, the network device may further send a third signaling to the first terminal device before determining the first information. Accordingly, the first terminal device may receive the third signaling. The third signaling may be DCI signaling. The third signaling comprises scheduling information of the first uplink transmission, and the scheduling information of the first uplink transmission comprises third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission includes third power adjustment information of the first uplink transmission.
If the third signaling includes scheduling information of the first uplink transmission, i.e. the third signaling is used for scheduling the first uplink transmission. As an example, the first uplink transmission includes a transmission of SRS, a transmission of PUSCH, or a transmission carried on PUSCH. If the third signaling includes scheduling information for the first downlink transmission, the third signaling is used to schedule the first downlink transmission. As an example, the first downlink transmission includes a transmission of the PDSCH or a transmission carried on the PDSCH. In this case, the first uplink transmission is PUCCH or a transmission carried on PUCCH. Or, the first uplink transmission is a transmission of UCI carried on PUSCH.
In another possible implementation, the network device may not send the third signaling, and the network device may send unauthorized (grant free) scheduling signaling to the first terminal device before determining the first information. The unlicensed scheduling signaling includes scheduling information for a first uplink transmission. Accordingly, the first terminal device may receive the unlicensed scheduling signaling. The unlicensed scheduling signaling may be RRC signaling, or RRC signaling triggered by DCI. RRC signaling triggered by DCI can also be understood as RRC signaling in combination with DCI signaling. The RRC signaling unlicensed schedule may be a type I unlicensed schedule. The unlicensed scheduling of RRC signaling in combination with DCI signaling may be the unlicensed scheduling of type II. As an example, the first uplink transmission includes a transmission of SRS, a transmission of PUSCH, a transmission carried on PUSCH, a transmission of PUCCH, a transmission carried on PUCCH, or a transmission of UCI carried on PUSCH.
If the network device sends an unlicensed scheduling signaling to the first terminal device, the network device may also send a DCI signaling to the first terminal device, where the DCI signaling carries third power adjustment information of the first uplink transmission. Accordingly, the first terminal device may receive the DCI signaling.
In one possible implementation, the third power adjustment information includes TPC for the first uplink transmission and/or target power for the first uplink transmission. Alternatively, the third power adjustment information may be other parameters for determining the transmission power of the first uplink transmission. The TPC in the third power adjustment information may be an absolute value or an offset. Based on the foregoing description of closed loop power control, TPC in the third power adjustment information is an absolute value in the case of absolute power control. If the power control is the cumulative power control, TPC in the third power adjustment information is an offset. For example, the TPC in the third power adjustment information is an offset relative to the TPC of the last signaling indication used to schedule uplink or downlink transmissions.
In one possible implementation, the first power adjustment information includes TPC for the first uplink transmission and/or target power for the first uplink transmission. Alternatively, the first power adjustment information may be other parameters for determining the transmission power of the first uplink transmission. The TPC or target power in the first power adjustment information may be an absolute value or an offset. If the TPC or target power in the first power adjustment information is an offset that is beneficial to reduce the overhead of the first signaling, the number of bits of the first signaling can be reduced, minimizing costs.
Alternatively, if the TPC in the first power adjustment information is an offset, the TPC in the first power adjustment information may be an offset with respect to the TPC in the third power adjustment information.
Alternatively, if the target power in the first power adjustment information is an offset, the target power in the first power adjustment information may be an offset with respect to the target power in the third power adjustment information.
Alternatively, if the RRC signaling configures only one target power value, the target power in the first power adjustment information may be an offset with respect to the target power indicated by the RRC signaling if the target power in the first power adjustment information is an offset.
In one possible implementation, the terminal device may determine the transmit power of the first uplink transmission based on the first signaling and the third signaling.
For example, if the TPC in the first power adjustment information is an offset relative to the TPC in the third power adjustment information. The terminal device may superimpose the TPC in the first power adjustment information and the TPC in the third power adjustment information, and calculate the transmit power of the first uplink transmission based on the TPC after the superimposition. Similarly, if the target power in the first power adjustment information is an offset relative to the target power in the third power adjustment information. The terminal device may superimpose the target power in the first power adjustment information and the target power in the third power adjustment information, and calculate the transmission power of the first uplink transmission based on the superimposed target power. Specific examples may refer to examples corresponding to the embodiment of fig. 8, and are not described herein.
In one possible implementation, if the target power in the first power adjustment information is an offset relative to the target power indicated by the RRC signaling. The terminal device may superimpose the target power in the first power adjustment information and the target power indicated by the RRC signaling, and calculate the transmit power of the first uplink transmission based on the superimposed target power. Specific examples may refer to examples corresponding to the embodiment of fig. 8, and are not described herein.
In one possible implementation, if the TPC in the first power adjustment information is an absolute value, the terminal device does not need to superimpose the TPC in the first power adjustment information with the TPC in the third power adjustment information. If the target power in the first power adjustment information is an absolute value, the terminal device does not need to overlap the target power in the first power adjustment information with the target power in the third power adjustment information or the RRC signaling. Specific examples may refer to examples corresponding to the embodiment of fig. 8, and are not described herein.
1602. The network device sends a first signaling to the terminal device. Accordingly, the terminal device may receive the first signaling.
Wherein the first signaling is a dedicated control instruction, and the first signaling includes first information. The first signaling is not used for scheduling. Optionally, the first signaling does not include uplink scheduling information or downlink scheduling information.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission. For example, assuming that the first full duplex time unit is time slot 6, the terminal device needs to adjust the transmit power of the first uplink transmission before sending the first uplink transmission, and assuming that the power adjustment delay Δt for adjusting the first uplink transmission is 2 time slots, the first signaling should be transmitted before time slot 4. Based on this possible implementation, it can be ensured that the terminal device has enough time to determine and adjust the transmit power of the first uplink transmission.
Since the first signaling does not directly indicate the first full duplex time unit. If the first signaling is received by the terminal device before T2- Δt, the terminal device considers that the first signaling is available for determining a transmit power of the first uplink transmission in the first full duplex time unit.
The first signaling has the following two issuing opportunities:
1. and when the network equipment determines all the terminal equipment for downlink transmission in the first full duplex time unit, determining first information and issuing a first signaling. The network device does not send the first signaling beyond T2- Δt at the latest, thereby ensuring that there is enough time to determine and adjust the transmit power of the first uplink transmission. That is, the network device determines all the interference in the first full duplex time unit before issuing a signaling to adjust the transmission power of the first uplink transmission. In this manner, the network device only issues one signaling to indicate the power adjustment information for the first uplink transmission.
In the present application, the network device issues the first signaling not exceeding T2- Δt at the latest, which can be understood as that the network device issues the first signaling in the first few symbols of the corresponding time slot not exceeding T2- Δt.
2. When the network device determines the terminal device for downlink transmission in the first full duplex time unit, the network device determines first information and issues first signaling. The network device may further send a second signaling after the first signaling is sent, where the second signaling does not include uplink scheduling information or downlink scheduling information, and the second signaling includes second information, where the second information indicates second power adjustment information of the first uplink transmission. The second power adjustment information is an offset relative to the first power adjustment information. After receiving the first signaling and the second signaling, determining a transmit power of the first uplink transmission based on the first signaling and the second signaling. For example, as shown in step 1703 and step 1704 of fig. 17. The implementation manner of other steps in fig. 17 is the same as that of the corresponding steps in fig. 16, and is not repeated here. The specific implementation principle of the second mode is the same as the implementation principle of the second timing of issuing the first signaling in the embodiment corresponding to fig. 8, and is not described herein.
The network device issues the first signaling and the second signaling not exceeding T2- Δt at the latest, thereby ensuring that the first terminal device has enough time to determine and adjust the transmission power of the first uplink transmission. In the present application, the network device issues the first signaling and the second signaling up to the latest not exceeding T2- Δt, which can be understood as that the network device issues the first signaling and the second signaling in the first several symbols of the corresponding time slot not exceeding T2- Δt.
Since neither the first signaling nor the second signaling directly indicates the first full duplex time unit. If the first signaling and the second signaling are received by the terminal device before T2- Δt, the terminal device considers that the first signaling and the second signaling are available for determining a transmit power of the first uplink transmission in the first full duplex time unit.
The network device may configure two sets of power adjustment information in advance at the first terminal device. And when the network equipment determines to adopt the first signaling issuing opportunity, the first power adjustment information is used. And when the network equipment determines to adopt the second first signaling sending time, using the second set of power adjustment information. The power adjustment information range corresponding to the first set of power adjustment information is larger than the power adjustment information range corresponding to the second set of power adjustment information. The network device may signal which set of power adjustment information the first terminal device uses. For example, the signaling may be RRC signaling. The related examples of the first set of power adjustment information and the second set of power adjustment information may be referred to the related description in the embodiment corresponding to fig. 8, and are not described herein.
1603. And the terminal equipment determines the transmitting power of the first uplink transmission according to the first signaling.
It can be seen that, based on the method described in fig. 16, the network device can timely issue signaling to the first terminal device to adjust the transmission power of the first uplink transmission of the first terminal device in the first full duplex time unit after determining the terminal device for downlink transmission in the first full duplex time unit, which is beneficial to avoiding strong self-interference of the first uplink transmission and reducing the gain of full duplex. And, the network device does not need to indicate the first full duplex time unit to the terminal device, which is beneficial to reducing the indication overhead.
Fig. 18 is a flowchart of another power determining method according to an embodiment of the present application. As shown in fig. 18, the power determination method includes the following steps 1801 to 1806. The method execution body shown in fig. 18 may be a terminal device and a network device. Alternatively, the method execution body shown in fig. 18 may be a chip in the terminal device and a chip in the network device. Fig. 18 illustrates an example of a method of a terminal device and a network device.
1801. The network device sends a third signaling to the terminal device. Accordingly, the terminal device may receive the third signaling.
The third signaling comprises scheduling information of first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission.
1802. The network device determines first information.
The first information indicates first power adjustment information of a first uplink transmission, where the first uplink transmission is an uplink transmission located in a first full duplex time unit.
1803. The network device sends a first signaling to the terminal device. Accordingly, the terminal device may receive the first signaling.
The first signaling is a dedicated control instruction, and the first signaling includes first information.
1804. And the terminal equipment determines the transmitting power of the first uplink transmission according to the first signaling and the third signaling.
Step 1801 to step 1804 may refer to the description in the embodiment corresponding to fig. 16, which is not repeated herein.
1805. The network device sends a fourth signaling to the terminal device. Accordingly, the terminal device may receive the fourth signaling.
The fourth signaling includes scheduling information of a second uplink transmission, where the scheduling information of the second uplink transmission indicates fourth power adjustment information, or the third signaling includes scheduling information of a second downlink transmission, where the second uplink transmission is used to transmit feedback information of the second downlink transmission, and the scheduling information of the second downlink transmission indicates fourth power adjustment information; the second uplink transmission is located temporally after the first uplink transmission.
1806. And determining the transmitting power of the second uplink transmission according to the first signaling, the third signaling and the fourth signaling.
In this embodiment, the second uplink transmission may be located in a second full duplex time unit, or the second uplink transmission may be located in a non-full duplex time unit. The second uplink transmission is a first uplink transmission located after the first uplink transmission in a time domain, or the second uplink transmission is an xth uplink transmission located after the first uplink transmission in a time domain, and X is greater than 1.
For example, the second uplink transmission is located in a non-full duplex time unit. Let the power adjustment delay Δt of the first uplink transmission be 3 slots. As shown in fig. 19, the network device issues DCI signaling 1 to the terminal device 1 in time slot 1, where the DCI signaling 1 is used to schedule PUSCH1 for transmission in time slot 6. The TPC indicated by the DCI signaling 1 is 10db, and the target power is 10db.
The network device issues a DCI signaling 2 to the terminal device 1 in the time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in the time slot 7, the TPC indicated by the DCI signaling 2 is 2db, and the TPC indicated by the DCI signaling 2 is an offset compared with the TPC indicated by the DCI signaling 1. The DCI signaling 2 indicates a target power of 11db.
The network device issues a DCI signaling 3 to the terminal device 1 in the time slot 3, where the DCI signaling 3 is used to schedule PUSCH3 for transmission in the time slot 8, the TPC indicated by the DCI signaling 3 is 2db, and the TPC indicated by the DCI signaling 3 is an offset compared with the TPC indicated by the DCI signaling 2. The DCI signaling 3 indicates a target power of 12db.
The network device determines that the terminal device 2 and the terminal device 3 are to be scheduled for downlink transmission in the time slot 4, and considers that TPC and/or target power indicated by the DCI signaling 2 is inaccurate at this time, considering that the terminal device 2 and the terminal device 3 may generate self-interference to the PUSCH2 in the time slot 7. Thus, the network device issues a DCI signaling 4 to the terminal device 1 in slot 4, the DCI signaling 4 indicating a TPC of 3db and/or a target power of 3 db. The TPC indicated by DCI signaling 4 is an offset compared to the TPC indicated by DCI signaling 2. The target power indicated by DCI signaling 4 is an offset from the target power indicated by DCI signaling 2.
The terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2 and the TPC indicated by the DCI signaling 4 to obtain an integrated TPC of 15db, and/or the terminal device 1 integrates the target power indicated by the DCI signaling 2 and the target power indicated by the DCI signaling 4 to obtain an integrated target power of 14db. The terminal device 1 calculates the transmit power of PUSCH2 using TPC of 15db and/or target power of 14db.
The terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2, the TPC indicated by the DCI signaling 3, and the TPC indicated by the DCI signaling 4 to obtain an integrated TPC of 17db. The terminal device 1 calculates the transmit power of the PUSCH3 using the TPC of 17db and the target power of 12 db.
The network device may also send a fifth signaling to the terminal device if the second uplink transmission is located in the second full duplex time unit, the fifth signaling including third information indicating fourth power adjustment information of the second uplink transmission. The network device determines the transmitting power of the second uplink transmission according to the first signaling, the third signaling, the fourth signaling and the fifth signaling.
For example, the second uplink transmission is located in a second full duplex time unit. Let the power adjustment delay Δt of the first uplink transmission be 3 slots. As shown in fig. 20, the network device issues, to the terminal device 1 in the slot 1, a DCI signaling 1, where the DCI signaling 1 is used to schedule PUSCH1 for transmission in the slot 6, and TPC indicated by the DCI signaling 1 is 10db, and the target power is 10db.
The network device issues a DCI signaling 2 to the terminal device 1 in the time slot 2, where the DCI signaling 2 is used to schedule PUSCH2 for transmission in the time slot 7, the TPC indicated by the DCI signaling 2 is 2db, and the TPC indicated by the DCI signaling 2 is an offset compared with the TPC indicated by the DCI signaling 1. The DCI signaling 2 indicates a target power of 11db.
The network device issues a DCI signaling 3 to the terminal device 1 in the time slot 3, where the DCI signaling 3 is used to schedule PUSCH3 for transmission in the time slot 8, the TPC indicated by the DCI signaling 3 is 2db, and the TPC indicated by the DCI signaling 3 is an offset compared with the TPC indicated by the DCI signaling 2. The DCI signaling 2 indicates a target power of 12db.
The network device determines that the terminal device 2 and the terminal device 3 are to be scheduled for downlink transmission in the time slot 4, and considers that TPC and/or target power indicated by the DCI signaling 2 is inaccurate at this time, considering that the terminal device 2 and the terminal device 3 may generate self-interference to the PUSCH2 in the time slot 7. Thus, the network device issues a DCI signaling 4 to the terminal device 1 in slot 4, the DCI signaling 4 indicating a TPC of 3db and/or a target power of 3 db. The TPC indicated by DCI signaling 4 is an offset compared to the TPC indicated by DCI signaling 2. The target power indicated by DCI signaling 4 is an offset from the target power indicated by DCI signaling 2.
The network device determines that the terminal device 4 and the terminal device 5 are to be scheduled for downlink transmission in the time slot 5 in the time slot 8, and considers that TPC and/or target power indicated by the DCI signaling 3 is inaccurate in consideration of self-interference generated by the terminal device 4 and the terminal device 5 on the PUSCH3 in the time slot 8. Thus, the network device issues a DCI signaling 5 to the terminal device 1 in slot 5, the DCI signaling 5 indicating a TPC of 3db and/or a target power of 3 db. The TPC indicated by DCI signaling 5 is an offset amount compared to the sum of the TPC indicated by DCI signaling 3 and the TPC indicated by DCI signaling 4. The target power indicated by DCI signaling 5 is an offset compared to the sum of the target power indicated by DCI signaling 3 and the target power indicated by DCI signaling 4.
The terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2 and the TPC indicated by the DCI signaling 4 to obtain an integrated TPC of 15db, and/or the terminal device 1 integrates the target power indicated by the DCI signaling 2 and the target power indicated by the DCI signaling 4 to obtain an integrated TPC of 14db. The terminal device 1 calculates the transmit power of PUSCH2 using TPC of 15db and/or target power of 14db.
The terminal device 1 integrates the TPC indicated by the DCI signaling 1, the TPC indicated by the DCI signaling 2, the TPC indicated by the DCI signaling 3, the TPC indicated by the DCI signaling 4 and the TPC indicated by the DCI signaling 5 to obtain an integrated TPC of 20db. And/or, the terminal device 1 integrates the target power indicated by the DCI signaling 3, the target power indicated by the DCI signaling 4 and the target power indicated by the DCI signaling 5 to obtain the integrated TPC of 18db. The terminal device 1 calculates the transmit power of the PUSCH3 using the TPC of 20db and/or the target power of 18db.
It can be seen that for PUSCH2 in slot 7, the terminal device needs to determine the transmit power of PUSCH2 using TPC and/or target power indicated by DCI signaling 4. For PUSCH3 in slot 8, the terminal device needs to determine the transmit power of PUSCH3 using TPC and/or target power indicated by DCI signaling 4 and DCI signaling 5. That is, based on the scheme described in fig. 18, for the second full duplex time unit, the terminal device may consider that DCI signaling detected before T3- Δt2 of the second full duplex time unit, which is DCI signaling that does not include scheduling information, is all available for determining the transmit power of uplink transmission in the second full duplex time unit. T3 is a second full duplex time unit, and Δt2 is a power adjustment delay of the second uplink transmission.
Based on the method described in fig. 18, the terminal device can accurately determine the transmit power of the uplink transmission in the full duplex time unit even if there is no explicit information in the signaling sent by the network device to indicate which full duplex time unit it should be applied to.
Fig. 21 is a flowchart of another power determining method according to an embodiment of the present application. As shown in fig. 21, the power determination method includes the following steps 2101 to 2102. The method execution body shown in fig. 21 may be a terminal device and a network device. Alternatively, the method execution body shown in fig. 21 may be a chip in the terminal device and a chip in the network device. Fig. 21 illustrates an example of a method of a terminal device and a network device.
2101. The network device sends first information to the terminal device, the first information indicating at least two power ramp values of the random access. Accordingly, the terminal device may receive the first information.
2102. And the terminal equipment determines the power climbing value used for random access in the second time unit from the at least two power climbing values according to the type of the first time unit and the type of the second time unit, wherein the type is full duplex or non-full duplex. This type may also be other types, and embodiments of the present application are not limited.
The first time unit and the second time unit are two adjacent random access opportunities. The first time unit and the second time unit are specifically two adjacent random access opportunities configured by the network device to the same terminal device. The adjacent two random access occasions may be discontinuous in the time domain. The two adjacent random access occasions are determined in the random access occasions configured to the terminal equipment by the network equipment.
Wherein the first time unit is located before the second time unit.
In one possible implementation, the first time unit is the last random access occasion, and the second time unit is the current random access occasion; or the first time unit is the current random access opportunity, and the second time unit is the next random access opportunity.
In one possible implementation, the at least two power ramp values indicated by the first information include a first power ramp value and a second power ramp value, the first power ramp value being less than the second power ramp value;
when the type of the first time unit is not full duplex and the type of the second time unit is full duplex, the power climbing value used in the random access of the second time unit is a second power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is not full duplex and the type of the second time unit is not full duplex, the power climbing value used in the random access of the second time unit is the first power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is full duplex and the type of the second time unit is not full duplex, the power climbing value used in the random access of the second time unit is the first power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is full duplex and the type of the second time unit is full duplex, the power ramp value used for random access in the second time unit is the first power ramp value.
Since interference is large in the full duplex time cell, a larger transmit power is required for random access when switching from the non-full duplex time cell to the full duplex time cell.
For example, as shown in fig. 22, if the first time unit is slot 1 and the second time unit is slot 3, the power ramp value used for random access in the second time unit is the first power ramp value. If the first time unit is time slot 3 and the second time unit is time slot 5, the power ramp value used in the random access of the second time unit is the second power ramp value. If the first time unit is time slot 5 and the second time unit is time slot 7, the power ramp value used for random access in the second time unit is the first power ramp value. If the first time unit is time slot 7 and the second time unit is time slot 9, the power ramp value used for random access in the second time unit is the first power ramp value.
Optionally, the at least two power ramp values indicated by the first information include a first power ramp value, a second power ramp value, and a third power ramp value, where the first power ramp value is less than the second power ramp value, and the third power ramp value is also less than the second power ramp value; when the type of the first time unit is full duplex and the type of the second time unit is full duplex, the power ramp value used for random access in the second time unit is a third power ramp value. For example, as shown in fig. 23.
The first information may explicitly indicate the second power ramp up value, e.g. the first information may directly comprise the first power ramp up value and the second power ramp up value. Alternatively, the first information may implicitly indicate the second power ramp up value, the first information including the first power ramp up value and an offset of the second power ramp up value relative to the first power ramp up value.
Based on the method described in fig. 21, the terminal device can accurately determine the power ramp value used for random access, thereby improving the success rate of random access.
Referring to fig. 24, fig. 24 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 24 may be used to perform part or all of the functions of the first terminal device in the method embodiments described in fig. 8, 10, 12 or 14. The device may be the first terminal device, or may be a device in the first terminal device, or may be a device that can be used in cooperation with the first terminal device. The communication device may also be a chip system. The communication device shown in fig. 24 may include a communication unit 2401 and a processing unit 2402. The processing unit 2402 is configured to perform data processing. The communication unit 2401 integrates a receiving unit and a transmitting unit. The communication unit 2401 may also be referred to as a transceiving unit. Alternatively, the communication unit 2401 may be split into a receiving unit and a transmitting unit. Wherein:
A communication unit 2401, configured to receive a first signaling, where the first signaling includes first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is an uplink transmission located in the first full duplex time unit; the processing unit 2402 is configured to determine a transmission power of the first uplink transmission according to the first signaling.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the communication unit 2401 is further configured to receive a second signaling, where the second signaling includes third information and fourth information, the third information indicates the first full duplex time unit, the fourth information indicates second power adjustment information of the first uplink transmission, and the second signaling does not include uplink scheduling information or downlink scheduling information; the processing unit 2402 determines, according to the first signaling, the transmission power of the first uplink transmission in a specific manner: and determining the transmitting power of the first uplink transmission according to the first signaling and the second signaling.
In one possible implementation, the communication unit 2401 is further configured to receive third signaling before receiving the first signaling; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling comprises scheduling information of first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission; the processing unit 2402 determines, according to the first signaling, the transmission power of the first uplink transmission in a specific manner: and determining the transmitting power of the first uplink transmission according to the first signaling and the third signaling.
In one possible implementation, the communication unit 2401 is further configured to receive a fourth signaling, where the fourth signaling includes scheduling information of a second uplink transmission, or the fourth signaling includes scheduling information of a second downlink transmission, and the second uplink transmission is used to transmit feedback information of the second downlink transmission; the processing unit 2402 is further configured to determine a transmit power of a second uplink transmission according to the third signaling and the fourth signaling, where the second uplink transmission is located after the first uplink transmission in a time domain.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information includes a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1.
In one possible implementation, the first information includes a time unit offset from T1 to T2, T1 being a time unit for transmitting the first signaling and T2 being a first full duplex time unit; or alternatively, the process may be performed,
the first signaling is dedicated control signaling, and the first information includes a hybrid automatic repeat request HARQ process number, where the HARQ process number corresponds to a first full duplex time unit.
Referring to fig. 24, fig. 24 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 24 may be used to perform part or all of the functions of the second terminal device in the method embodiment described above with respect to fig. 14. The device may be the second terminal device, or may be a device in the second terminal device, or may be a device that can be used in cooperation with the second terminal device. The communication device may also be a chip system. The communication device shown in fig. 24 may include a communication unit 2401 and a processing unit 2402. The processing unit 2402 is configured to perform data processing. The communication unit 2401 integrates a receiving unit and a transmitting unit. The communication unit 2401 may also be referred to as a transceiving unit. Alternatively, the communication unit 2401 may be split into a receiving unit and a transmitting unit. Wherein:
A communication unit 2401, configured to receive a first signaling, where the first signaling includes first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is an uplink transmission located in the first full duplex time unit; the communication unit 2401 is further configured to receive a fifth signaling, where the fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission, and the third uplink transmission is located in the second full duplex time unit; a processing unit 2402, configured to determine a transmission power of the third uplink transmission; wherein the second full duplex time unit is different from the first full duplex time unit, and the first signaling is not used to determine a transmit power of the third uplink transmission.
In one possible implementation, the processing unit 2402 is further configured to determine that the first signaling is not used to determine the transmit power of the third uplink transmission when the second full duplex time unit is different from the first full duplex time unit.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit or the second full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information includes a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1.
In one possible implementation, the first information includes a time unit offset from T1 to T2, T1 being the time unit in which the first signaling is transmitted and T2 being the first full duplex time unit.
Referring to fig. 24, fig. 24 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 24 may be used to perform some or all of the functions of the network device in the method embodiments described above with respect to fig. 8, 10, 12, or 14. The device may be a network device, a device in a network device, or a device that can be used in cooperation with a network device. The communication device may also be a chip system. The communication device shown in fig. 24 may include a communication unit 2401 and a processing unit 2402. The processing unit 2402 is configured to perform data processing. The communication unit 2401 integrates a receiving unit and a transmitting unit. The communication unit 2401 may also be referred to as a transceiving unit. Alternatively, the communication unit 2401 may be split into a receiving unit and a transmitting unit. Wherein:
A processing unit 2402 configured to determine first information and second information, where the first information indicates a first full duplex time unit, and the second information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is an uplink transmission located in the first full duplex time unit; the communication unit 2401 is configured to send a first signaling to the first terminal device, where the first signaling includes first information and second information.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, a second signaling is sent to the first terminal device, the second signaling including third information indicating the first full duplex time unit and fourth information indicating second power adjustment information of the first uplink transmission.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information includes a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
In one possible implementation, the first signaling is a group common control signaling, the second information includes a power adjustment information field of N subbands, and the first uplink transmission is located in one or more subbands of the N subbands, where N is an integer greater than 1.
In one possible implementation, the first signaling is a group common control signaling, and the communication unit 2401 sends the first signaling to the first terminal device specifically in the following manner: sending a first signaling to a first terminal device and a second terminal device;
the communication unit 2401 is further configured to send a fifth signaling to the second terminal device, where the fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission, and the third uplink transmission is located in the second full duplex time unit; the second full duplex time unit is different from the first full duplex time unit, and the first signaling is not used to determine a transmit power of the third uplink transmission.
In one possible implementation, the first information includes a time unit offset from T1 to T2, T1 being a time unit for transmitting the first signaling and T2 being a first full duplex time unit; or alternatively, the process may be performed,
The first signaling is dedicated control signaling, and the first information includes a hybrid automatic repeat request HARQ process number, where the HARQ process number corresponds to a first full duplex time unit.
Referring to fig. 24, fig. 24 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 24 may be used to perform part or all of the functions of the terminal device in the method embodiments described in fig. 16, 17 and 18. The device can be a terminal device, a device in the terminal device, or a device which can be matched with the terminal device for use. The communication device may also be a chip system. The communication device shown in fig. 24 may include a communication unit 2401 and a processing unit 2402. The processing unit 2402 is configured to perform data processing. The communication unit 2401 integrates a receiving unit and a transmitting unit. The communication unit 2401 may also be referred to as a transceiving unit. Alternatively, the communication unit 2401 may be split into a receiving unit and a transmitting unit. Wherein:
a communication unit 2401, configured to receive a first signaling, where the first signaling is a dedicated control instruction, the first signaling includes first information, the first information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is an uplink transmission located in a first full duplex time unit; the processing unit 2402 is configured to determine a transmission power of the first uplink transmission according to the first signaling.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the communication unit 2401 is further configured to receive second signaling, where the second signaling includes second information, the second information indicates second power adjustment information of the first uplink transmission, and the second signaling does not include uplink scheduling information or downlink scheduling information; the processing unit 2402 determines, according to the first signaling, the transmission power of the first uplink transmission in a specific manner: and determining the transmitting power of the first uplink transmission according to the first signaling and the second signaling.
In one possible implementation, the communication unit 2401 is further configured to receive third signaling before receiving the first signaling; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of the first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission; the processing unit 2402 determines, according to the first signaling, the transmission power of the first uplink transmission in a specific manner: and determining the transmitting power of the first uplink transmission according to the first signaling and the third signaling.
In one possible implementation, the communication unit 2401 is further configured to receive a fourth signaling, where the fourth signaling includes scheduling information of a second uplink transmission, or the fourth signaling includes scheduling information of a second downlink transmission, and the second uplink transmission is used to transmit feedback information of the second downlink transmission; the processing unit 2402 is further configured to determine a transmit power of a second uplink transmission according to the first signaling, the third signaling, and the fourth signaling, where the second uplink transmission is located after the first uplink transmission in a time domain.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information indicates a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
Referring to fig. 24, fig. 24 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 24 may be used to perform some or all of the functions of the network device in the method embodiments described above in fig. 16, 17, and 18. The device may be a network device, a device in a network device, or a device that can be used in cooperation with a network device. The communication device may also be a chip system. The communication device shown in fig. 24 may include a communication unit 2401 and a processing unit 2402. The processing unit 2402 is configured to perform data processing. The communication unit 2401 integrates a receiving unit and a transmitting unit. The communication unit 2401 may also be referred to as a transceiving unit. Alternatively, the communication unit 2401 may be split into a receiving unit and a transmitting unit. Wherein:
A processing unit 2402 configured to determine first information, where the first information indicates first power adjustment information of a first uplink transmission, and the first uplink transmission is an uplink transmission located in a first full duplex time unit; the communication unit 2401 is configured to send a first signaling to the terminal device, where the first signaling is a dedicated control instruction, and the first signaling includes first information.
In one possible implementation, at least two sub-bands are present on the first full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the communication unit 2401 is further configured to send a second signaling to the terminal device, where the second signaling does not include uplink scheduling information or downlink scheduling information, and the second signaling includes second information, where the second information indicates second power adjustment information of the first uplink transmission.
In one possible implementation, the first signaling is signaling transmitted before T2- Δt, T2 is a first full duplex time unit, and Δt is a power adjustment delay of the first uplink transmission.
In one possible implementation, the first power adjustment information indicates a transmit power control TPC for the first uplink transmission and/or a target power for the first uplink transmission.
Referring to fig. 24, fig. 24 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 24 may be used to perform part or all of the functions of the terminal device in the method embodiment described above with respect to fig. 21. The device can be a terminal device, a device in the terminal device, or a device which can be matched with the terminal device for use. The communication device may also be a chip system. The communication device shown in fig. 24 may include a communication unit 2401 and a processing unit 2402. The processing unit 2402 is configured to perform data processing. The communication unit 2401 integrates a receiving unit and a transmitting unit. The communication unit 2401 may also be referred to as a transceiving unit. Alternatively, the communication unit 2401 may be split into a receiving unit and a transmitting unit. Wherein:
a communication unit 2401 configured to receive first information, where the first information indicates at least two power ramp values of random access; a processing unit 2402, configured to determine, from at least two power ramp values, a power ramp value used for random access in a second time unit according to a type of the first time unit and a type of the second time unit, where the type is full duplex or non-full duplex; the first time unit and the second time unit are two adjacent random access opportunities.
In one possible implementation, at least two sub-bands are present on a full duplex time unit, the transmission directions of two sub-bands of the at least two sub-bands being different; wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
In one possible implementation, the first time unit is located before the second time unit.
In one possible implementation, the at least two power ramp up values include a first power ramp up value and a second power ramp up value, the first power ramp up value being less than the second power ramp up value;
when the type of the first time unit is not full duplex and the type of the second time unit is full duplex, the power climbing value used by random access is the second power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is not full duplex and the type of the second time unit is not full duplex, the power climbing value used by random access is the first power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is full duplex and the type of the second time unit is not full duplex, the power climbing value used by random access is the first power climbing value; or alternatively, the process may be performed,
when the type of the first time unit is full duplex and the type of the second time unit is full duplex, the power ramp value used by random access is the first power ramp value.
The various embodiments herein may be used in combination.
Fig. 25 shows a schematic structure of a communication device. The communication device 2500 may be the first terminal device in the above method embodiment, may be the second terminal device in the above method embodiment, may be the terminal device in the above method embodiment, may be a network device in the above method embodiment, may be a chip, a chip system, a processor or the like supporting the first terminal device to implement the above method, may be a chip, a chip system, a processor or the like supporting the second terminal device to implement the above method, may be a chip, a chip system, a processor or the like supporting the network device to implement the above method, and may be a chip, a chip system, a processor or the like supporting the network device to implement the above method. The communication device may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.
The communication device 2500 may include one or more processors 2501. The processor 2501 may be a general purpose processor or a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminals, terminal chips, DUs or CUs, etc.), execute software programs, and process data of the software programs.
Optionally, the communication device 2500 may include one or more memories 2502 on which instructions 2504 may be stored, which may be executed on the processor 2501, to cause the communication device 2500 to perform the methods described in the method embodiments above. Optionally, the memory 2502 may also store data therein. The processor 2501 and the memory 2502 may be provided separately or may be integrated.
Optionally, the communication device 2500 may further include a transceiver 2505, an antenna 2506. The transceiver 2505 may be referred to as a transceiver unit, a transceiver circuit, or the like, for implementing a transceiver function. The transceiver 2505 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function. The processing unit 2402 shown in fig. 24 may be the processor 2501. The communication unit 2401 may be a transceiver 2505.
The communication device 2500 is a first terminal apparatus: the processor 2501 is configured to perform the data processing operations of the first terminal device in the above-described method embodiment. The transceiver 2505 is configured to perform the data transceiving operation of the first terminal device in the above-described method embodiment. For example, the transceiver 2505 may be used to perform the data transceiving operations of the first terminal device of fig. 8, 10, 12 or 14. The processor 2501 is operable to perform data processing operations of the first terminal device of fig. 8, 10, 12 or 14.
The communication device 2500 is a second terminal apparatus: the processor 2501 is configured to perform the data processing operations of the second terminal device in the above-described method embodiment. The transceiver 2505 is configured to perform the data transceiving operation of the second terminal device in the above-described method embodiment. For example, the transceiver 2505 may be used to perform data transceiving operations of the second terminal device in fig. 14. The processor 2501 is operable to perform data processing operations of the second terminal device of fig. 14.
The communication device 2500 is a terminal device: the processor 2501 is configured to perform the data processing operations of the terminal device in the above-described method embodiment. The transceiver 2505 is configured to perform the data transceiving operation of the terminal device in the above-described method embodiment. For example, the transceiver 2505 may be used to perform data transceiving operations of the terminal device of fig. 16, 17, 18, or 21. The processor 2501 is operable to perform the data processing operations of the terminal device of fig. 16, 17, 18 or 21.
The communication device 2500 is a network apparatus: the processor 2501 is configured to perform the data processing operations of the network device in the above-described method embodiments. The transceiver 2505 is configured to perform the data transceiving operations of the network device in the method embodiment described above. For example, the transceiver 2505 may be used to perform data transceiving operations of the network device of fig. 8, 10, 12, 14, 16, 17, 18, or 21. The processor 2501 is operable to perform data processing operations of the network device of fig. 8, 10, 12, 14, 16, 17, 18 or 21.
In another possible design, a transceiver for implementing the receive and transmit functions may be included in the processor 2501. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.
In yet another possible design, the processor 2501 may have instructions 2503 stored thereon, the instructions 2503 being executable on the processor 2501 to cause the communication device 2500 to perform the method described in the above method embodiments. The instructions 2503 may be solidified in the processor 2501, in which case the processor 2501 may be implemented in hardware.
In yet another possible design, communication device 2500 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in embodiments of the present application may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronics, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
The communication apparatus described in the above embodiment may be the first communication device, the second communication device, but the scope of the communication apparatus described in the embodiment of the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 25. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:
(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;
(2) A set of one or more ICs, optionally including storage means for storing data, instructions;
(3) An ASIC, such as a modem (MSM);
(4) Modules that may be embedded within other devices;
(5) Receivers, terminals, smart terminals, cellular telephones, wireless devices, handsets, mobile units, vehicle devices, network devices, cloud devices, artificial intelligence devices, etc.;
(6) Others, and so on.
For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 26. Chip 2600 shown in fig. 26 includes a processor 2601 and an interface 2602. Optionally, a memory 2603 may also be included. Wherein the number of processors 2601 may be one or more, and the number of interfaces 2602 may be a plurality.
In one design, for the case that the chip is used to implement the function of the first terminal device in the embodiment of the present application:
the interface 2602 is configured to receive or output a signal; for example, the interface 2602 may be used to perform signal receiving or outputting operations of the first terminal device in fig. 8, 10, 12, or 14.
The processor 2601 is configured to perform data processing operations of the first communication device. For example, the processor 2601 may be used to perform data processing operations of the first terminal device of fig. 8, 10, 12, or 14.
In another design, for the case where the chip is used to implement the function of the second terminal device in the embodiment of the present application: the interface 2602 is configured to receive or output a signal; for example, the interface 2602 may be used to perform a signal receiving or outputting operation of the second terminal device in fig. 14. The processor 2601 is configured to perform data processing operations of the second communication device. For example, the processor 2601 may be used to perform data processing operations of the second terminal device of fig. 14.
In another design, for the case where the chip is used to implement the functions of the terminal device in the embodiments of the present application:
the interface 2602 is configured to receive or output a signal; for example, the interface 2602 may be used to perform signal receiving or outputting operations of the terminal device in fig. 16, 17, 18, or 21.
The processor 2601 is configured to perform data processing operations of the second communication device. For example, the processor 2601 may be used to perform data processing operations of the terminal device of fig. 16, 17, 18, or 21.
In another design, for the case where the chip is used to implement the functions of the network device in the embodiments of the present application:
the interface 2602 is configured to receive or output a signal; for example, interface 2602 may be used to perform signal receiving or outputting operations of the network devices of fig. 8, 10, 12, 14, 16, 17, 18, or 21.
The processor 2601 is configured to perform data processing operations of the network device. For example, the processor 2601 may be used to perform data processing operations of the network devices of fig. 8, 10, 12, 14, 16, 17, 18, or 21.
It can be understood that some optional features in the embodiments of the present application may be implemented independently in some scenarios, independent of other features, such as the scheme on which they are currently based, so as to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the communication device provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described herein.
It should be appreciated that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.
It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The present application also provides a computer readable medium having stored therein a computer program or instructions which, when executed by a communication device, implement the functions of any of the method embodiments described above.
The present application also provides a computer program product comprising instructions which, when read and executed by a computer, cause the computer to carry out the functions of any of the method embodiments described above.
In the above embodiments, the implementation may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). 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, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (29)

1. A power determining method, applied to a first terminal device, the method comprising:
receiving first signaling, wherein the first signaling comprises first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of first uplink transmission, and the first uplink transmission is uplink transmission located in the first full duplex time unit;
and determining the transmitting power of the first uplink transmission according to the first signaling.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
at least two sub-bands exist on the first full duplex time unit, and the transmission directions of two sub-bands in the at least two sub-bands are different;
wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
receiving second signaling, wherein the second signaling comprises third information and fourth information, the third information indicates the first full duplex time unit, the fourth information indicates second power adjustment information of the first uplink transmission, and the second signaling does not comprise uplink scheduling information or downlink scheduling information;
the determining, according to the first signaling, the transmission power of the first uplink transmission includes:
and determining the transmitting power of the first uplink transmission according to the first signaling and the second signaling.
4. The method according to claim 1 or 2, wherein prior to the receiving the first signaling, the method further comprises:
receiving a third signaling; the third signaling comprises scheduling information of the first uplink transmission, wherein the scheduling information of the first uplink transmission indicates third power adjustment information of the first uplink transmission; or the third signaling includes scheduling information of a first downlink transmission, the first uplink transmission is used for transmitting feedback information of the first downlink transmission, and the scheduling information of the first downlink transmission indicates third power adjustment information of the first uplink transmission;
The determining, according to the first signaling, the transmission power of the first uplink transmission includes:
and determining the transmitting power of the first uplink transmission according to the first signaling and the third signaling.
5. The method according to claim 4, wherein the method further comprises:
receiving a fourth signaling, wherein the fourth signaling comprises scheduling information of second uplink transmission, or the fourth signaling comprises scheduling information of second downlink transmission, and the second uplink transmission is used for transmitting feedback information of the second downlink transmission;
and determining the transmitting power of the second uplink transmission according to the third signaling and the fourth signaling, wherein the second uplink transmission is positioned after the first uplink transmission in the time domain.
6. The method according to any one of claims 1 to 5, wherein,
the first signaling is signaling transmitted before T2- Δt, T2 is the first full duplex time unit, and Δt is the power adjustment delay of the first uplink transmission.
7. The method according to any of claims 1-6, wherein the first power adjustment information comprises a transmission power control, TPC, of the first uplink transmission and/or a target power of the first uplink transmission.
8. The method according to any of claims 1-7, wherein the first signaling is group common control signaling and the second information comprises a power adjustment information field of N subbands, the first uplink transmission being located in one or more of the N subbands, and N being an integer greater than 1.
9. The method according to any one of claims 1 to 7, wherein,
the first information includes a time unit offset from T1 to T2, the T1 being a time unit in which the first signaling is transmitted, the T2 being the first full duplex time unit; or alternatively, the process may be performed,
the first signaling is dedicated control signaling, the first information includes a hybrid automatic repeat request HARQ process number, and the HARQ process number corresponds to the first full duplex time unit.
10. A power determining method, applied to a second terminal device, the method comprising:
receiving first signaling, wherein the first signaling comprises first information and second information, the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of first uplink transmission, and the first uplink transmission is uplink transmission located in the first full duplex time unit;
Receiving a fifth signaling, where the fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission, and the third uplink transmission is located in a second full duplex time unit;
determining the transmitting power of the third uplink transmission;
wherein the second full duplex time unit is different from the first full duplex time unit, the first signaling is not used to determine the transmit power of the third uplink transmission.
11. The method of claim 10, wherein after the receiving the fifth signaling, the method further comprises:
when the second full duplex time unit is different from the first full duplex time unit, determining that the first signaling is not used to determine a transmit power of the third uplink transmission.
12. The method according to claim 10 or 11, characterized in that at least two sub-bands are present on the first full duplex time unit or the second full duplex time unit, the transmission directions of two of the at least two sub-bands being different;
Wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
13. The method according to any one of claims 10 to 12, wherein,
the first signaling is signaling transmitted before T2- Δt, T2 is the first full duplex time unit, and Δt is the power adjustment delay of the first uplink transmission.
14. The method according to any of the claims 10-13, wherein the first power adjustment information comprises a transmission power control, TPC, of the first uplink transmission and/or a target power of the first uplink transmission.
15. The method according to any of claims 10-14, wherein the first signaling is group common control signaling and the second information comprises a power adjustment information field of N subbands, the first uplink transmission being in one or more of the N subbands, and N being an integer greater than 1.
16. The method according to any of claims 10-15, wherein the first information comprises a time unit offset from T1 to T2, the T1 being the time unit in which the first signaling is transmitted and the T2 being the first full duplex time unit.
17. A method of power determination, for use with a network device, the method comprising:
determining first information and second information, wherein the first information indicates a first full duplex time unit, the second information indicates first power adjustment information of first uplink transmission, and the first uplink transmission is uplink transmission located in the first full duplex time unit;
and sending a first signaling to a first terminal device, wherein the first signaling comprises the first information and the second information.
18. The method of claim 17, wherein the step of determining the position of the probe is performed,
at least two sub-bands exist on the first full duplex time unit, and the transmission directions of two sub-bands in the at least two sub-bands are different;
wherein the two sub-bands do not overlap, partially overlap or completely overlap in the frequency domain.
19. The method according to claim 17 or 18, characterized in that the method further comprises:
and sending a second signaling to the first terminal equipment, wherein the second signaling comprises third information and fourth information, the third information indicates the first full duplex time unit, and the fourth information indicates second power adjustment information of the first uplink transmission.
20. The method according to any one of claims 17 to 19, wherein,
the first signaling is signaling transmitted before T2- Δt, T2 is the first full duplex time unit, and Δt is the power adjustment delay of the first uplink transmission.
21. The method according to any of the claims 17-20, wherein the first power adjustment information comprises a transmission power control, TPC, of the first uplink transmission and/or a target power of the first uplink transmission.
22. The method according to any of claims 17-21, wherein the first signaling is group common control signaling and the second information comprises a power adjustment information field of N subbands, the first uplink transmission being in one or more of the N subbands, and N being an integer greater than 1.
23. The method according to any of claims 17-22, wherein the first signaling is group common control signaling, and the sending the first signaling to the first terminal device comprises:
sending a first signaling to the first terminal device and the second terminal device;
the method further comprises the steps of:
transmitting a fifth signaling to the second terminal device, where the fifth signaling includes scheduling information of a third uplink transmission, or the fifth signaling includes scheduling information of a third downlink transmission, where the third uplink transmission is used to transmit feedback information of the third downlink transmission, and the third uplink transmission is located in a second full duplex time unit; the second full duplex time unit is different from the first full duplex time unit, and the first signaling is not used to determine a transmit power of the third uplink transmission.
24. The method according to any one of claims 17 to 22, wherein,
the first information includes a time unit offset from T1 to T2, the T1 being a time unit in which the first signaling is transmitted, the T2 being the first full duplex time unit; or alternatively, the process may be performed,
the first signaling is dedicated control signaling, the first information includes a hybrid automatic repeat request HARQ process number, and the HARQ process number corresponds to the first full duplex time unit.
25. A communication device comprising means for performing the method of any one of claims 1 to 9, or comprising means for performing the method of any one of claims 10 to 16, or comprising means for performing the method of any one of claims 17 to 24.
26. A communication device comprising a processor and a memory, the processor and the memory being coupled, the processor being configured to implement the method of any one of claims 1 to 9, or the processor being configured to implement the method of any one of claims 10 to 16, or the processor being configured to implement the method of any one of claims 17 to 24.
27. A chip comprising a processor and an interface, the processor and the interface being coupled;
the interface being for receiving or outputting signals, the processor being for executing code instructions to cause the method of any one of claims 1 to 9, or to cause the method of any one of claims 10 to 16, or to cause the method of any one of claims 17 to 24.
28. A computer-readable storage medium having stored therein computer-executable instructions for causing the computer to perform the method of any one of the preceding claims 1-9 when invoked by the computer, or for causing the computer to perform the method of any one of the preceding claims 10-16 when invoked by the computer, or for causing the computer to perform the method of any one of the preceding claims 17-24 when invoked by the computer.
29. A computer program product, the computer program product comprising: computer program code which, when executed by a computer, causes the computer to perform:
The method of any one of claims 1 to 9, or the method of any one of claims 10 to 16, or the method of any one of claims 17 to 24.
CN202111389856.9A 2021-11-22 2021-11-22 Power determination method and communication device Pending CN116170862A (en)

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US10779241B2 (en) * 2015-08-07 2020-09-15 Huawei Technologies Co., Ltd. Full-duplex transmission control method, user equipment, and base station
US11160029B2 (en) * 2017-01-04 2021-10-26 Lg Electronics Inc. Controlling uplink power based on downlink path loss and configuration indicated by base station
CN111836349A (en) * 2019-04-18 2020-10-27 北京三星通信技术研究有限公司 Power control method and apparatus for performing the same
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