WO2019196895A1 - 旁链路的功率控制方法及终端设备 - Google Patents

旁链路的功率控制方法及终端设备 Download PDF

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Publication number
WO2019196895A1
WO2019196895A1 PCT/CN2019/082211 CN2019082211W WO2019196895A1 WO 2019196895 A1 WO2019196895 A1 WO 2019196895A1 CN 2019082211 W CN2019082211 W CN 2019082211W WO 2019196895 A1 WO2019196895 A1 WO 2019196895A1
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WIPO (PCT)
Prior art keywords
terminal device
information
power
power control
side link
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PCT/CN2019/082211
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English (en)
French (fr)
Inventor
姜炜
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to ES19786105T priority Critical patent/ES2958833T3/es
Priority to EP19786105.7A priority patent/EP3780773B1/en
Publication of WO2019196895A1 publication Critical patent/WO2019196895A1/zh
Priority to US17/061,371 priority patent/US11564174B2/en

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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/383—TPC being performed in particular situations power control in peer-to-peer links
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/203—Details of error rate determination, e.g. BER, FER or WER
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04W52/08—Closed loop power control
    • 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
    • H04W52/16—Deriving transmission power values from another channel
    • 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
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average, variance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • 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
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/265—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a power control method for a side link and a terminal device.
  • the side link (ie, Sidelink) communication usually has a power control mechanism, and the power transmission mechanism can adjust the information transmission terminal in the side link communication.
  • the transmission power is such that the information receiving terminal in the side link communication always maintains a good reception effect.
  • the power control mechanism of side link communication is implemented by an open loop power control mechanism in side link communication.
  • the open loop power control in the side link communication can be implemented based on the open loop power control method in Long Term Evolution (LTE), that is, the path loss between the terminal device and the network side device (ie, Pathloss) can be used.
  • LTE Long Term Evolution
  • Pathloss the path loss between the terminal device and the network side device
  • the centralized control of the transmit power of the terminal device in the side-link communication is implemented.
  • the information sending terminal can calculate the basic open-loop operation point according to the static parameter or the semi-static parameter sent by the network-side device, based on the obtained basic
  • the open loop operating point can determine the transmit power of the information transmitting terminal in the side link communication.
  • the open loop power control in the side link communication can be implemented in the above manner, the open loop power control in the side link communication does not ensure that the information receiving terminal in the side link communication is always in a good information receiving effect. Therefore, the power control accuracy in the side link communication is poor, and power is wasted, and the overall performance of the communication system is low. Therefore, in the 5G and subsequent evolved wireless network communication, it is required to provide a more optimized or more reliable side. Power control scheme for link communication.
  • An object of the embodiments of the present disclosure is to provide a power control method and a terminal device for a side link, so as to improve accuracy of power control in side link communication, reduce power waste, and improve overall performance of the communication system.
  • a power control method for a side link which is applied to a terminal device, and includes:
  • a power control method for a side link is proposed, which is applied to a terminal device, including:
  • a terminal device including:
  • An information sending module configured to send information to the first terminal device in the side link communication, so that the first terminal device successfully generates the indication information according to the receiving condition of the information;
  • An information receiving module configured to receive power control indication information from the first terminal device
  • a power adjustment module configured to determine, according to the power control indication information, information transmission power of the terminal device in the side link communication.
  • a terminal device including:
  • An information receiving module configured to receive information from a second terminal device in the side link communication, where the second terminal device is an information sending terminal in the side link communication;
  • the information sending module is configured to send the power control indication information to the second terminal device according to the receiving situation of the information, so that the second terminal device determines the side link communication according to the power control indication information The information transmission power of the second terminal device.
  • a terminal device comprising: a memory, a processor, and a program stored on the memory and executable on the processor, the program being implemented by the processor to implement the foregoing The steps of the method described on the one hand.
  • a terminal device comprising: a memory, a processor, and a program stored on the memory and executable on the processor, the program being implemented by the processor to implement the foregoing The steps of the method described in the two aspects.
  • a computer readable storage medium is provided, the program being stored on a computer readable storage medium, the program being executed by a processor to implement the steps of the method of the first aspect or the second aspect described above .
  • the embodiments of the present disclosure are applied to a terminal device, where the terminal device may be an information transmitting terminal in side-link communication, by receiving the information receiving terminal in the side-link communication.
  • the power control indication information sent by the terminal device determines the information transmission power of the terminal device (ie, the information transmission terminal) in the side link communication, so that the terminal device can use the power control indication information in the side link communication Closed-loop power control, further adjusting the transmission power of the information transmitting terminal in the side link communication, so that the first terminal device can always ensure that the information or signal sent by the information transmitting terminal is received with a better receiving effect, thereby reducing Power wastage and improve the overall performance of the communication system.
  • FIG. 1 is an embodiment of a power control method for a side link according to the present disclosure
  • FIG. 2 is a schematic structural diagram of a power control system of a side link according to the present disclosure
  • FIG. 3 is a schematic diagram of another power control method for a side link according to the present disclosure.
  • FIG. 5 is still another embodiment of a power control method for a side link according to the present disclosure.
  • FIG. 6 is a schematic diagram of a terminal device according to the present disclosure.
  • FIG. 7 is another embodiment of a terminal device according to the present disclosure.
  • FIG. 8 is still another embodiment of a terminal device according to the present disclosure.
  • FIG. 9 is still another embodiment of a terminal device according to the present disclosure.
  • Embodiments of the present disclosure provide a power control method for a side link and a terminal device.
  • the technical solution of the present disclosure can be applied to various communication systems, such as: Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA) system, and wideband code division multiple access ( Wideband Code Division Multiple Access Wireless (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), and the like.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PLMN public land mobile network
  • the network side device may be a device for communicating with the mobile device, and the network side device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in WCDMA, or may be LTE.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB base station
  • WCDMA Wireless Fidelity
  • LTE Long Term Evolution
  • eNB or eNodeB Evolved Node B or access point, or in-vehicle device, wearable device, network-side device in future 5G network, or future public land mobile network (PLMN) Network side devices in the network.
  • PLMN public land mobile network
  • the system to which the present disclosure is applicable may be a Frequency Division Duplex (FDD), a Time Division Duplex (TDD), or a system in which FDD and TDD are used in a duplex mode, and the present disclosure does not Make a limit.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the present disclosure does not Make a limit.
  • the power control method of the side link provided in the present disclosure and the side link in the terminal device actually refer to Sidelink, and the Sidelink can be called not only the side link but also the sub link, the side link or the side chain. Road, etc., in this disclosure, only Sidelink is represented by a side link.
  • an embodiment of the present disclosure provides a power control method for a side link, which can be applied to control processing of transmit power of side link communication.
  • the executor of the method may be a user-side device, where the user-side device may be a terminal device, and the terminal device may be a mobile terminal device such as a mobile phone, a tablet computer, or a wearable device, and the terminal device may also be a terminal such as a personal computer.
  • a device which may be a terminal device for transmitting information in side link communication.
  • the method may specifically include steps S102 to S106.
  • the power control indication information is received from the first terminal device.
  • the first terminal device may be a single independent terminal device, or may be multiple terminal devices, that is, the terminal device used for information receiving in the side link communication may include multiple.
  • the power control indication information may be information for indicating whether the information transmitting terminal in the side link communication adjusts the information transmission power thereof, and the power control indication information may include a transmission power capable of indicating the terminal device in the side link communication.
  • the power control indication information may include not only information about whether to adjust the transmission power, but also information about how to adjust, such as increasing or decreasing, and may also include information such as the adjustment of the transmission power. For example, 0.5 mW or 1 mW.
  • the power control indication information is not only used to indicate whether to adjust the transmission power, but the power control indication information may also have other uses or functions, such as determining whether the signal quality is good or bad or in the judgment signal.
  • the noise and the like of the embodiments of the present disclosure are not limited thereto.
  • open loop power control in side link (ie, Sidelink) communication may be based on Long Term Evolution (LTE).
  • LTE Long Term Evolution
  • the open loop power control method is implemented, that is, the path loss between the terminal device and the network side device (ie, Pathloss) can be used to implement centralized control of the transmit power of the terminal device in the side link communication.
  • the open loop power control may be a power control manner in which the receiving party does not need to provide feedback to the receiving information, and the sending party can determine and control the sending power.
  • the terminal device ie, the sending party
  • the static parameter or the semi-static parameter is calculated to obtain a basic open-loop operating point.
  • the basic open-loop operating point can be divided into two parts: (1) a semi-static parameter indicating the target value of the open-loop power of the terminal device P 0 , (2) one
  • P CMAX may be the maximum transmit power of the terminal device
  • M may be the allocated bandwidth (the unit of M may be RB)
  • the PL may be the measured value of the path loss on the serving cell
  • P 0 and ⁇ may be through higher layer parameters.
  • the p0 and alpha indications correspond to the open-loop power target value and the power loss compensation factor of the terminal device on the Physical Sidelink Shared Channel (PSSCH).
  • PSSCH Physical Sidelink Shared Channel
  • the open loop power control on the side link communication in the 5G or subsequent evolved wireless network communication can be implemented based on the open loop power control in the LTE, but the closed loop power control on the side link communication is not implemented.
  • Closed-loop power control has advantages that open loop power control can't match, for example, power control is more accurate and more accurate. Therefore, closed-loop power control in side-link communication is necessary in 5G or subsequent evolved wireless network communication, and how The implementation of the closed-loop power control in the side-link communication becomes a problem to be solved.
  • a mechanism for implementing closed-loop power control in the side-link communication is provided. Based on the loop power control, closed loop power control is introduced to achieve further power control.
  • the specific processing may include the following:
  • the closed loop power control may refer to a power control mode in which the transmitting party controls the transmit power according to the power control indication information sent by the receiver.
  • a feedback control loop exists in the side link communication, which may be The signal quality of the received signal is compared with the expected signal quality, and the power control indication information that the terminal device needs to increase or decrease the transmission power is given, and the power control indication information can be implemented by using a command in the wireless network communication, such as Transmission Power Control (TPC) commands, etc.
  • TPC Transmission Power Control
  • the terminal device can execute the above TPC command to adjust the transmit power in the side link communication.
  • the side link communication may include a terminal device for performing information transmission, and one or more first terminal devices for receiving information, where the terminal device may be preset with information. Transmit power, which may be obtained by open loop power control in side link communication, or by other means (such as predetermined protocol or high layer based configuration information, etc.).
  • the terminal device may send the power with the set information, and send the information or information feedback request to the first terminal device by using the network side device, After receiving the information or information feedback request, a terminal device may not receive the information according to the reception condition of the information (for example, whether the information is not received because the transmission power is too small, or whether the information is not received due to a system failure of the first terminal device).
  • the first terminal device may The power control indication information is sent to the terminal device, and the terminal device can receive the power control indication information sent by the first terminal device.
  • the information transmission power of the terminal device in the side link communication is determined according to the power control indication information.
  • the side link can transmit signals or information through the wireless frame, and one subframe of the side link can include two consecutive time slots, and can start with an even time slot.
  • the threshold or expected value of the signal quality of the signal transmitted by the terminal device may be pre-configured through a corresponding communication protocol or an agreement between the devices.
  • the terminal device may analyze the power control indication information, and extract or calculate information about the signal quality of the received signal of the first terminal device, and then may extract or The calculated information is compared with the threshold or expected value of the pre-configured signal quality, and it may be determined according to the comparison result whether the information transmission power of the terminal device (information transmitting terminal) in the side link communication needs to be improved, or whether the side link communication needs to be reduced.
  • the information transmission power of the terminal device (information transmitting terminal), the value of increasing or decreasing the transmission power, and the like, or the information transmission power of the terminal device (information transmitting terminal) in the side-link communication may be directly determined based on the comparison result.
  • a plurality of different signal quality thresholds or expected values may be configured, such as 2, 3, or 4, etc., to configure thresholds or expected values of the two signal qualities.
  • the threshold or expected value of the two signal qualities may be K1 and K2, and K1 ⁇ K2. If the signal quality is less than or equal to K1, the information transmission power of the terminal device (information transmitting terminal) in the side link communication If the signal quality is greater than K1 and less than K2, the information transmission power of the terminal device in the side-link communication is 2 dBm. If the signal quality is greater than or equal to K2, the information transmission power of the terminal device in the side-link communication is 4 dBm.
  • the signal quality of the received signal of the first terminal device may be determined according to the power control indication information, and the terminal in the side link communication may be determined by determining the position of the signal quality in the interval.
  • the information transmission power of the device for example, if the signal quality determined by the power control indication information is greater than K1 and less than K2, then the information transmission power of the terminal device can be set to 2 dBm. At this time, the terminal device can be 2dBm of transmit power to transmit information or signals.
  • An embodiment of the present disclosure provides a power control method for a side link, which is applied to a terminal device, where the terminal device may be an information transmitting terminal in side link communication, and receives the first information receiving terminal in the side link communication.
  • the power control indication information sent by the terminal device determines the information transmission power of the terminal device (ie, the information transmitting terminal) in the side link communication, so that the terminal device can perform the closed loop by using the power control indication information in the side link communication Power control, further adjusting the transmission power of the information transmitting terminal in the side link communication, so that the first terminal device can always ensure that the information or signal sent by the information transmitting terminal is received with better receiving effect, thereby reducing power Waste and improve the overall performance of the communication system.
  • a power control method for a side link may be applied to control processing of closed loop power of side link communication.
  • the executor of the method may be a user-side device, where the user-side device may be a terminal device, and the terminal device may be a mobile terminal device such as a mobile phone, a tablet computer, or a wearable device, and the terminal device may also be a terminal such as a personal computer.
  • the device may be the first terminal device in the foregoing embodiment of FIG. 1, that is, the terminal device for receiving information in the side link communication.
  • the method may specifically include steps S302 to S304.
  • the second terminal device may be the terminal device in the foregoing embodiment of FIG. 1.
  • the terminal device used for information reception is the first terminal device.
  • the terminal device used for information transmission may be a second terminal device.
  • one terminal device may be in multiple different side link communications, but each terminal device has only one transmit power.
  • the power control indication information may include not only information about whether to adjust the transmission power, but also information about how to adjust, such as increasing or decreasing, and may also include information such as the adjustment of the transmission power.
  • the side link communication may include a second terminal device for performing information transmission, and one or more first terminal devices for receiving information, where the second terminal device may
  • the information transmission power is preset, and the information transmission power may be obtained by open loop power control in side link communication, or obtained by other methods (such as predetermined protocol or high layer based configuration information, etc.).
  • the second terminal device may send the power with the set information, and send the information to the first terminal device by using the network-side device. .
  • the power control indication information is sent to the second terminal device according to the receiving situation of the foregoing information, so that the second terminal device determines, according to the power control indication information, information transmission of the second terminal device in the side link communication. power.
  • the first terminal device may collect information about the signal quality of the signal received by the first terminal device according to the information received by the first terminal device, and may successfully generate the indication information based on the information.
  • the information may reflect the information receiving situation of the first terminal device, and the first terminal device may send the power control indication information to the second terminal device.
  • the second terminal device may determine, according to the power control indication information, the information sending power of the second terminal device (that is, the information sending terminal in the side link communication) in the foregoing side link communication, and the specific processing procedure may be related to the foregoing S104.
  • the content is not described here.
  • An embodiment of the present disclosure provides a power control method for a side link, which is applied to a terminal device, where the terminal device may be an information receiving terminal in side link communication, and is configured to send a second to the information in the side link communication.
  • the power control indication information sent by the terminal device so that the second terminal device determines the information transmission power of the information transmitting terminal in the side link communication, so that the terminal device can use the power control indication information in the side link communication to perform the closed loop Power control, further adjusting the transmission power of the information transmitting terminal in the side link communication, so that the first terminal device can always ensure that the information or signal sent by the information transmitting terminal is received with better receiving effect, thereby reducing power Waste and improve the overall performance of the communication system.
  • another embodiment of the present disclosure provides a power control method for a side link, which can be applied to control processing of closed loop power of side link communication.
  • the executor of the method may be a user-side device, where the user-side device may be a terminal device, and the terminal device may be a mobile terminal device such as a mobile phone, a tablet computer, or a wearable device, and the terminal device may also be a terminal such as a personal computer. device.
  • the execution subject terminal device in this embodiment may include the first terminal device in the foregoing embodiment of FIG. 1, that is, the terminal device for receiving information in the side link communication, and the second device in the foregoing embodiment of FIG.
  • the terminal device that is, the terminal device used for information transmission in the side link communication.
  • the method may specifically include steps S402 to S406.
  • the first terminal device receives information from the second terminal device.
  • the first terminal device sends the target information to the second terminal device according to the receiving situation of the foregoing information, where the target information carries the power control indication information, and the target information may be one of the following information: The information SCI, the physical side link control channel PSCCH, and the physical side link shared channel PSSCH.
  • the target information may be information carrying the power control indication information, and may include Sidelink Control Information (SCI), Physical Sidelink Control Channel (PSCCH), and physical side link sharing.
  • SCI Sidelink Control Information
  • PSCCH Physical Sidelink Control Channel
  • the power control indication information may include a combination of one or more of the following: Hybrid Automatic Repeat reQuest Acknowledgement (HARQ ACK)/Hybrid Automatic Repeat reQuest Negative Acknowledgment (HARQ) NACK), Channel Quality Indicator (CQI), Signal to Interference plus Noise Ratio (SINR), and Block Error Ratio (BLER).
  • HARQ ACK Hybrid Automatic Repeat reQuest Acknowledgement
  • HARQ Hybrid Automatic Repeat reQuest Negative Acknowledgment
  • CQI Channel Quality Indicator
  • SINR Signal to Interference plus Noise Ratio
  • BLER Block Error Ratio
  • power control indication information The content of the present invention is not limited to the above-menti
  • the first terminal device may collect, according to the information received by the first terminal device, the channel quality information indicating the CQI, the signal to noise ratio SINR, and the block error rate BLER, and the hybrid automatic repeat request acknowledgement/failure.
  • One or more of the information such as the HARQ ACK/NACK may successfully generate the indication information by using the collected information, and may carry the power control indication information in the SCI, PSCCH, or PSSCH through the SCI, PSCCH, or PSSCH. Send to the second terminal device.
  • the second terminal device determines, according to the power control indication information, information transmission power of the second terminal device in the side link communication.
  • the second terminal device may use one of CQI, SINR, BLER, and HARQ ACK/NACK information according to the information in the power control indication information.
  • the item information, etc. determines whether it is necessary to adjust the information transmission power of the second terminal device in the side link communication, and if the adjustment is not needed, the processes of S402 to S406 described above may be cyclically executed, and if adjustment is needed, the function may be performed.
  • the control indication information determines the adjustment of the transmission power of the second terminal device, and the transmission power of the second terminal device is adjusted according to the determined adjustment size to obtain the adjusted transmission power. At this time, the second terminal device may be based on the adjustment.
  • the transmission power transmits information or signals. For the specific processing procedure described above, reference may also be made to the related content of S104 above.
  • the method for determining the information sending power of the second terminal device in the foregoing side link communication may be different for different situations.
  • the following provides three optional processing modes, which may specifically include the following content:
  • the information transmission power of the second terminal device in the side link communication is determined according to the number of received power control indication information and the total number of the second terminal device and the first terminal device.
  • the vehicle queue includes 6 vehicles, each vehicle is provided with a terminal device for transmitting and receiving information, and 6 vehicles.
  • the first vehicle may be included, the first vehicle may be the frontmost vehicle (also referred to as a head vehicle) in the vehicle queue, or may be the last vehicle in the vehicle queue, or may be Vehicles in the queue of vehicles between the foremost and the last.
  • the initial transmission power of the information in the side link communication may be preset in the terminal device of the first vehicle (ie, the second terminal device) (the initial transmission power)
  • the transmit power may be obtained by open loop power control in the side link communication, or obtained by other means (such as a predetermined protocol or high-level configuration information, etc.), and then the first vehicle may pass through its terminal device.
  • Other vehicles transmit information, and if other vehicles can correctly receive the information, they may feed back a power control indication information (or may be referred to as response information, etc.) to the first vehicle.
  • the three power control indication information and the total number of vehicles in the vehicle queue may be passed (ie, the second terminal device and the first terminal device (ie, other than the first vehicle)
  • the power control indication information may include various information such as HARQ ACK/NACK, CQI, SINR, and BLER, different information may have different processing manners.
  • the power control indication information may include the HARQ ACK/NACK, and the processing in the foregoing S406 may be: determining the side link communication according to the ratio of the HARQ NACK in the sum of the HARQ ACK and the HARQ NACK and the first threshold. The information transmission power of the second terminal device.
  • the first threshold may be determined based on high-level configuration information, determined based on a predetermined protocol, or predefined.
  • the configuration information of the upper layer may be higher than the communication level of the second terminal device in the foregoing link communication, and may be a network side device (such as a base station, etc.), or may be another terminal device. Pre-definition can be specified or set according to actual conditions.
  • the initial transmission power of the information in the side link communication may be preset in the second terminal device in the foregoing side link communication (the initial transmission power may be controlled by the open loop power in the side link communication) Obtaining, or otherwise obtaining, etc., at this time, the second terminal device may send information to the first terminal device in the side link communication, and after receiving the information, the first terminal device may send the information to the second terminal device.
  • the HARQ ACK or the HARQ NACK may count the number of received HARQ NACKs, the number of HARQ ACKs, and the sum of the HARQ NACKs and the HARQ ACKs, and then calculate the number of HARQ NACKs in the sum of the HARQ ACKs and the HARQ NACKs.
  • the second terminal device may be preset with a first threshold, which may be an expected value or an optimal value determined according to an actual situation, and the first threshold may include one, or may include multiple, such as two, 3 or 4, etc., the corresponding transmission power calculation method or calculation rule may be respectively set according to the number of the first threshold, and then the second terminal device may compare the obtained value of the above ratio with the first threshold, and compare As a result, the information transmission power of the second terminal device in the corresponding side link communication can be calculated using a corresponding transmission power calculation method or calculation rule.
  • a first threshold which may be an expected value or an optimal value determined according to an actual situation
  • the first threshold may include one, or may include multiple, such as two, 3 or 4, etc.
  • the first threshold includes two values, which may be Pn1 and Pn2, respectively, and the transmission power calculation method or calculation rule may be set as follows: if Pn2>x ⁇ Pn1, the information transmission of the second terminal device in the side link communication is performed.
  • the first threshold includes two values.
  • the first threshold is not limited to the case of including two values, and may further include two or more values, which may be specifically The actual situation is set, and the embodiment of the present disclosure does not limit this.
  • the CQI may be included in the power control indication information, and the processing in the S406 may be: determining the information transmission power of the second terminal device in the side link communication according to the size relationship between the CQI and the expected CQI.
  • the expected CQI is determined based on high-level configuration information, determined based on a predetermined protocol, or predefined.
  • the initial transmission power of the information in the side link communication may be preset in the second terminal device in the foregoing side link communication (the initial transmission power may be controlled by the open loop power in the side link communication)
  • the second terminal device may send information to the first terminal device in the side link communication, and after receiving the information, the first terminal device may send the information to the second terminal device.
  • the CQI information after receiving the CQI information, the second terminal device may adopt independent closed loop power control in different resource pools or bandwidth parts (Bandwidth Part (BWP)) to implement independent power control in different side link communications.
  • BWP bandwidth parts
  • the expected CQI may be preset, and the expected CQI may be an expected value or an optimal value or the like determined according to actual conditions, and the expected CQI may include one, or may include multiple, such as 2, 3, or 4
  • the corresponding transmission power calculation method or calculation rule may be separately set according to the expected number of CQIs, and then the second terminal device may obtain the obtained CQI information and the period. CQI is compared, using the corresponding transmission power can be calculated by comparing the results or calculation rule, the next communication link information corresponding to the calculated second terminal equipment transmit power.
  • the CQI includes two values, which may be a and b, respectively, and the transmission power calculation method or calculation rule may be set as follows: if the received CQI satisfies a certain range of values, that is, [a, b], the above-mentioned side chain
  • the second terminal device in the road communication does not need to perform closed-loop power control; if the received CQI is smaller than the value a, it indicates that the channel quality in the side link communication is currently poor, and at this time, the side link communication may be appropriately improved.
  • the transmit power of the second terminal device is good. If the received CQI is greater than the value b, it indicates that the channel quality in the side link communication is good. In this case, the transmit power of the second terminal device in the side link communication can be appropriately reduced.
  • the above description only takes the case that the expected CQI includes two values.
  • the CQI is not limited to the case of including two values, and may include two or more values, which may be based on actual conditions.
  • the setting of the embodiment of the present disclosure is not limited thereto.
  • An embodiment of the present disclosure provides a power control method for a side link, which is applied to a terminal device, where the terminal device may be an information transmitting terminal in side link communication, and receives the first information receiving terminal in the side link communication.
  • the power control indication information sent by the terminal device determines the information transmission power of the terminal device (ie, the information transmitting terminal) in the side link communication, so that the terminal device can perform the closed loop by using the power control indication information in the side link communication Power control, further adjusting the transmission power of the information transmitting terminal in the side link communication, so that the first terminal device can always ensure that the information or signal sent by the information transmitting terminal is received with better receiving effect, thereby reducing power Waste and improve the overall performance of the communication system.
  • another embodiment of the present disclosure provides a power control method for a side link, which can be applied to control processing of closed loop power of side link communication.
  • the executor of the method may be a user-side device, where the user-side device may be a terminal device, and the terminal device may be a mobile terminal device such as a mobile phone, a tablet computer, or a wearable device, and the terminal device may also be a terminal such as a personal computer. device.
  • the execution subject terminal device in this embodiment may include the first terminal device in the foregoing embodiment of FIG. 1, that is, the terminal device for receiving information in the side link communication, and the second device in the foregoing embodiment of FIG.
  • the terminal device that is, the terminal device used for information transmission in the side link communication.
  • the method may specifically include steps S502 to S506.
  • the first terminal device receives information from the second terminal device.
  • the first terminal device sends the target information to the second terminal device according to the receiving situation of the foregoing information, where the target information carries the power control indication information, where the target information is one of the following information: the side link control information
  • the target information is one of the following information: the side link control information
  • the power change parameter may be used to indicate whether to adjust the information sending power of the second terminal device in the side link communication, how to adjust and adjust the size, and the like.
  • the received power of the first terminal device and the preset received power threshold may be a value, or may be a value range, etc., in the embodiment of the present disclosure.
  • the comparison result it is determined whether the information transmission power of the second terminal device in the side-link communication is adjusted according to the comparison result, and if the adjustment is needed, the corresponding power variation parameter may be acquired, and the power variation parameter may be obtained.
  • the power control indication information it is carried in the SCI, PSCCH or PSSCH and sent to the second terminal device. For example, if the received power of the first terminal device is greater than a preset received power threshold, the power change parameter is R1.
  • the power change parameter is R2, and the like.
  • the sizes of R1 and R2 can be determined according to actual conditions, for example, R2 is a positive number and R1 is a negative number.
  • the power control indication information may be carried in the SCI, the PSCCH, or the PSSCH, and may be sent by using the foregoing manner.
  • the first terminal device may send the power control indication information to the second terminal device through other channels or channels, which is not limited in this embodiment of the disclosure.
  • the value of the power variation parameter is The difference between the predetermined received power threshold of a terminal device and the received power of the first terminal device.
  • the predetermined received power threshold of the first terminal device is determined based on the configuration information of the high layer, determined or pre-defined based on a predetermined protocol, and the received power corresponding to the predetermined received power threshold of the first terminal device can ensure that the first terminal device has better receiving. effect.
  • the difference may be calculated as: the value of the power variation parameter is equal to the predetermined reception power threshold of the first terminal device minus the received power of the first terminal device.
  • the second terminal device adjusts the current transmission power according to the value of the power variation parameter to obtain the information transmission power of the second terminal device in the side link communication.
  • the second terminal device may receive the power control indication information sent by the first terminal device by using the SCI, the PSCCH, or the PSSCH, and then, the power control indication information may be analyzed, and the power variation parameter may be extracted therefrom.
  • the second terminal device can adjust the current transmit power of the second terminal device, in particular, the current transmit power of the second terminal device, in order to ensure that the first terminal device in the side link communication has better information receiving effect.
  • the determining of the increase and decrease may be determined according to a relationship between a received power of the first terminal device and a predetermined received power threshold of the first terminal device, or The positive or negative determination of the value obtained by subtracting the received power of the first terminal device from the predetermined received power threshold of the first terminal device, for example, if the received power of the first terminal device is smaller than the predetermined received power threshold of the first terminal device, The current transmit power of the second terminal device is increased by the value of the power change parameter. If the received power of the first terminal device is greater than the predetermined receive power threshold of the first terminal device, the current transmit power of the second terminal device may be reduced by the power. The value of the parameter.
  • the received power of the first terminal device is 1 dBm
  • the predetermined received power threshold of the first terminal device set in the side link communication is 5 dBm
  • the information transmission power of the second terminal device in the side link communication is the current transmission power of the second terminal device plus the power variation parameter 4 dBm. Then, the second terminal device can transmit information or a signal or the like with the transmission power increased by 4 dBm as described above.
  • the second terminal device may have multiple power control processes, and each power control process may correspond to one transmit power, so that for the power change parameter, each power control process has a power change parameter corresponding thereto.
  • the specific processing procedure of the above S506 may include the following steps 1 and 2.
  • Step 1 Determine the transmit power corresponding to each power control process according to the value of the power change parameter corresponding to each power control process.
  • the power of the power control process corresponding to the power control process may be calculated by using the foregoing process, and the transmit power corresponding to the power control process may be calculated. Related content will not be described here.
  • Step 2 Determine, according to the transmit power and power determination rules corresponding to the multiple power control processes, the information sending power of the second terminal device in the side link communication, where the power determination rule is used for the transmit power corresponding to the multiple power control processes.
  • One or more transmission powers are selected to determine the information transmission power of the second terminal device in the above-described side link communication.
  • the specific content of the power determination rule may be determined according to an actual situation, which is not limited by the embodiment of the disclosure.
  • the processing manner of the foregoing step 2 may include multiple types. The following provides two feasible processing manners, which may specifically include:
  • the transmit power with the largest value may be selected among the transmit powers corresponding to the multiple power control processes.
  • the information transmission power of the second terminal device in the link communication, or the transmission power corresponding to the second largest value among the transmission powers corresponding to the multiple power control processes may be selected as the information transmission power of the second terminal device in the side link communication.
  • the transmission power corresponding to the maximum power of the plurality of power control processes may be selected as the information transmission power of the second terminal device in the side link communication, or may be in multiple power control processes.
  • One of the corresponding transmission powers is randomly selected as the information transmission power of the second terminal device in the bypass communication; or, one of the transmission powers corresponding to the multiple power control processes may be selected within a predetermined value range. Transmit power as the information of the second terminal device in the above-mentioned side link communication Power and so on.
  • multiple transmit values corresponding to the specified value may be selected among the transmit powers corresponding to the multiple power control processes. Transmit power, or may select multiple transmit powers that are less than a specified value among the transmit powers corresponding to the multiple power control processes, or may select a predetermined value among the transmit powers corresponding to the multiple power control processes.
  • the plurality of transmission powers in the range may be processed by using a plurality of selected transmission powers. For example, an arithmetic mean value or a geometric mean value of the plurality of transmission powers may be calculated, and the processed value may be used as the side link communication.
  • the information transmission power of the second terminal device may be used as the side link communication.
  • each power control process in the second terminal device has a mapping relationship with the bandwidth part BWP and the resource pool, and the second terminal device in the side link communication is configured by the mapping association relationship.
  • Each of the power control processes in it has the actual carrier.
  • the predetermined received power threshold of the first terminal device may also include multiple, specifically, if one of the multiple power control processes is set as the first power control process, Then, the predetermined received power threshold of the first terminal device on the first power control process may be determined by a BWP and a resource pool that are associated with the first power control process.
  • 5G network communication can support up to 400MHz bandwidth, which is much larger than the maximum 20MHz bandwidth in LTE network communication, so that 5G network communication can support larger system and user throughput.
  • supporting 400MHz bandwidth will be a huge challenge for the implementation of terminal equipment, and 400MHz bandwidth is not conducive to the realization of low-cost terminal equipment. Therefore, the 5G network communication also supports a dynamic and flexible bandwidth allocation mechanism, and the above bandwidth can be divided into multiple parts (ie, BWP) to support a narrowband terminal device or an access communication network of a terminal device having an energy saving mode.
  • BWP bandwidth allocation mechanism
  • a terminal device can be configured with one or more BWPs.
  • each BWP can adopt the same or different digital numerology (ie, Numerologies, also referred to as parameter sets or parameter settings).
  • the downlink (DL) BWP and the uplink (UL) BWP of one terminal device can be configured by the network side device, respectively.
  • the terminal device is activated only by one DL BWP and one UL BWP.
  • the terminal device can perform dynamic adjustment of the BWP according to the indication of the L1 signaling, including:
  • Case 1 The BWP center frequency is unchanged and the BWP bandwidth changes
  • Case 2 The frequency of the BWP center changes, and the BWP bandwidth does not change
  • Case 3 The BWP center frequency changes and the BWP bandwidth changes.
  • An embodiment of the present disclosure provides a power control method for a side link, which is applied to a terminal device, where the terminal device may be an information transmitting terminal in side link communication, and receives the first information receiving terminal in the side link communication.
  • the power control indication information sent by the terminal device determines the information transmission power of the terminal device (ie, the information transmitting terminal) in the side link communication, so that the terminal device can perform the closed loop by using the power control indication information in the side link communication Power control, further adjusting the transmission power of the information transmitting terminal in the side link communication, so that the first terminal device can always ensure that the information or signal sent by the information transmitting terminal is received with better receiving effect, thereby reducing power Waste and improve the overall performance of the communication system.
  • the embodiment of the present disclosure further provides a terminal device, as shown in FIG. 6 .
  • the terminal device may be the second terminal device in the foregoing embodiment, and the terminal device may include an information sending module 601, an information receiving module 602, and a power adjusting module 603.
  • the information sending module 601 is configured to send information to the first terminal device in the side link communication, so that the first terminal device successfully generates the indication information according to the receiving condition of the information;
  • the information receiving module 602 is configured to receive the power control indication information from the first terminal device.
  • the power adjustment module 603 is configured to determine, according to the power control indication information, information transmission power of the terminal device in the side link communication.
  • the information receiving module 602 is configured to receive target information from the first terminal device, where the target information carries the power control indication information, and the target information is one of the following information: Link control information SCI, physical side link control channel PSCCH, and physical side link shared channel PSSCH.
  • the power control indication information includes a combination of one or more of the following: a hybrid automatic repeat request acknowledgement/failure HARQ ACK/NACK, a channel quality information indication CQI, a signal to noise ratio SINR, and a block error. Rate BLER.
  • the power adjustment module 603 is configured to determine, according to the received number of the power control indication information, and the total number of the terminal device and the first terminal device, The information transmission power of the terminal device.
  • the power control indication information includes the HARQ ACK/NACK
  • the power adjustment module 603 is configured to determine, according to a ratio of the HARQ NACK in the sum of the HARQ ACK and the HARQ NACK, and a first threshold, determining the terminal device in the side link communication.
  • Information transmission power, the first threshold is determined based on high layer configuration information, determined based on a predetermined protocol, or predefined.
  • the power control indication information includes the CQI
  • the power adjustment module 603 is configured to determine, according to the size relationship between the CQI and the expected CQI, information transmission power of the terminal device in the side link communication, where the expected CQI is based on configuration information of a high layer. Determined, determined based on a predetermined agreement or pre-defined.
  • the power control indication information includes a power variation parameter
  • the power adjustment module 603 is configured to adjust the current transmit power according to the value of the power change parameter to obtain information transmission power of the terminal device in the side link communication.
  • the value of the power variation parameter is a difference between a predetermined received power threshold of the first terminal device and a received power of the first terminal device, and the predetermined receiving of the first terminal device
  • the power threshold is determined based on the configuration information of the higher layer, determined based on a predetermined protocol, or predefined.
  • the terminal device includes multiple power control processes
  • the power adjustment module 603 is configured to determine, according to the value of the power variation parameter corresponding to each power control process, a transmit power corresponding to each power control process; and a transmit power corresponding to the multiple power control processes. Determining, by the power determining rule, the information sending power of the terminal device, where the power determining rule is used to select one or more sending powers from the sending powers corresponding to the multiple power control processes to determine the information sending power of the terminal device .
  • each of the power control processes has a mapping relationship with the bandwidth part BWP and the resource pool, and the predetermined received power threshold of the first terminal device on the first power control process passes the first power
  • the control process has a BWP and a resource pool for mapping associations, and the first power control process is one of the plurality of power control processes.
  • An embodiment of the present disclosure provides a terminal device, which may be an information transmitting terminal in a side-link communication, and determines by receiving the power control indication information sent by the first terminal device as the information receiving terminal in the side-link communication.
  • the information transmission power of the terminal device ie, the information transmitting terminal
  • the further adjustment of the transmission power of the information transmitting terminal enables the first terminal device to always receive the information or signal sent by the information transmitting terminal with better receiving effect, thereby reducing power waste and improving the overall performance of the communication system.
  • the embodiment of the present disclosure further provides a terminal device, as shown in FIG. 7.
  • the terminal device may be the first terminal device in the foregoing embodiment, and the terminal device may include an information receiving module 701 and an information sending module 702.
  • the information receiving module 701 is configured to receive information from the second terminal device in the side link communication
  • the information sending module 702 is configured to send the power control indication information to the second terminal device according to the receiving situation of the information, so that the second terminal device determines the side link according to the power control indication information.
  • the information transmission power of the second terminal device in the communication is configured to send the power control indication information to the second terminal device according to the receiving situation of the information, so that the second terminal device determines the side link according to the power control indication information.
  • the information sending module 702 is configured to send target information to the second terminal device, where the target information carries the power control indication information, and the target information is one of the following information.
  • the power control indication information includes a combination of one or more of the following: a hybrid automatic repeat request acknowledgement/failure HARQ ACK/NACK, a channel quality information indication CQI, a signal to noise ratio SINR, and a block error. Rate BLER.
  • the power control indication information includes a power change parameter, where the power change parameter is used to determine information transmission power of the second terminal device in the side link communication.
  • An embodiment of the present disclosure provides a terminal device, where the terminal device may be an information receiving terminal in a side-link communication, by transmitting the power control indication information to the second terminal device that is the information transmitting terminal in the side-link communication, And causing the second terminal device to determine the information sending power of the information transmitting terminal in the side link communication, so that the terminal device can perform closed loop power control by using the power control indication information in the side link communication, thereby implementing the side link communication
  • the further adjustment of the transmission power of the information transmitting terminal enables the first terminal device to always receive the information or signal sent by the information transmitting terminal with better receiving effect, thereby reducing power waste and improving the overall performance of the communication system.
  • FIG. 8 is a block diagram of a terminal device according to another embodiment of the present disclosure.
  • the terminal device 800 shown in FIG. 8 includes at least one processor 801, a memory 802, at least one network interface 804, and a user interface 803.
  • the various components in terminal device 800 are coupled together by a bus system 805.
  • the bus system 805 is used to implement connection communication between these components.
  • the bus system 805 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 805 in FIG.
  • the user interface 803 may include a display, a keyboard, a pointing device (eg, a mouse, a trackball), a touch pad or a touch screen, and the like.
  • a pointing device eg, a mouse, a trackball
  • touch pad e.g., a touch screen
  • the user interface 803 may include a display, a keyboard, a pointing device (eg, a mouse, a trackball), a touch pad or a touch screen, and the like.
  • the memory 802 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM direct memory bus random access memory
  • memory 802 stores elements, executable modules or data structures, or a subset thereof, or their extended set: operating system 8021 and application 8022.
  • the operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 8022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 8022.
  • the terminal device 800 further includes: a computer program stored on the memory 805 and executable on the processor 801.
  • a computer program stored on the memory 805 and executable on the processor 801.
  • Processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 801 or an instruction in a form of software.
  • the processor 801 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional computer readable storage medium of the art, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the computer readable storage medium is located in a memory 802, and the processor 801 reads the information in the memory 802 and, in conjunction with its hardware, performs the steps of the above method.
  • the computer readable storage medium stores a computer program, and when the computer program is executed by the processor 801, the steps of the embodiment of the method for selecting the network unit are implemented.
  • the embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described in this disclosure In an electronic unit or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the receiving the power control indication information from the first terminal device includes:
  • Target information from the first terminal device, where the target information carries the power control indication information, where the target information is one of the following information: a side link control information SCI, a physical side link control channel PSCCH, and The physical side link shares the channel PSSCH.
  • the power control indication information includes a combination of one or more of the following: a hybrid automatic repeat request acknowledgement/failure HARQ ACK/NACK, a channel quality information indication CQI, a signal to noise ratio SINR, and a block error rate BLER .
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the power control indication information includes the HARQ ACK/NACK
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the configuration information of the upper layer is determined, determined based on a predetermined protocol, or predefined.
  • the power control indication information includes the CQI
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the power control indication information includes a power variation parameter
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the value of the power variation parameter is a difference between a predetermined received power threshold of the first terminal device and a received power of the first terminal device, and a predetermined received power threshold of the first terminal device. It is determined based on high-level configuration information, determined based on a predetermined protocol, or pre-defined.
  • the terminal device includes multiple power control processes
  • the determining, according to the value of the power change parameter, the current transmit power, to obtain the information sending power of the terminal device in the side link communication including:
  • each of the power control processes has a mapping association relationship with the bandwidth part BWP and the resource pool, and the predetermined received power threshold of the first terminal device on the first power control process passes the first power control process.
  • the BWP and the resource pool having the mapping association are determined, and the first power control process is one of the plurality of power control processes.
  • the terminal device 800 can implement various processes implemented by the terminal device in the foregoing embodiment. To avoid repetition, details are not described herein again.
  • An embodiment of the present disclosure provides a terminal device, which may be an information transmitting terminal in a side-link communication, and determines by receiving the power control indication information sent by the first terminal device as the information receiving terminal in the side-link communication.
  • the information transmission power of the terminal device ie, the information transmitting terminal
  • the further adjustment of the transmission power of the information transmitting terminal enables the first terminal device to always receive the information or signal sent by the information transmitting terminal with better receiving effect, thereby reducing power waste and improving the overall performance of the communication system.
  • FIG. 9 is a block diagram of a terminal device according to another embodiment of the present disclosure.
  • the terminal device 900 shown in FIG. 9 includes at least one processor 901, a memory 902, at least one network interface 904, and a user interface 903.
  • the various components in terminal device 900 are coupled together by a bus system 905.
  • the bus system 905 is used to implement connection communication between these components.
  • the bus system 905 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 905 in FIG.
  • the user interface 903 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 902 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM direct memory bus random access memory
  • memory 902 stores elements, executable modules or data structures, or a subset thereof, or their extended set: operating system 9021 and application 9022.
  • the operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 9022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 9022.
  • the terminal device 900 further includes: a computer program stored on the memory 905 and executable on the processor 901. When the computer program is executed by the processor 901, the following steps are implemented:
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 901 or implemented by the processor 901.
  • the processor 901 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 901 or an instruction in a form of software.
  • the processor 901 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional computer readable storage medium of the art, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the computer readable storage medium is located in a memory 902, and the processor 901 reads the information in the memory 902 and, in conjunction with its hardware, performs the steps of the above method.
  • the computer readable storage medium stores a computer program, and when the computer program is executed by the processor 901, the steps of the embodiment of the network unit selection method are implemented.
  • the embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described in this disclosure In an electronic unit or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the sending the power control indication information to the second terminal device includes:
  • target information carries the power control indication information
  • target information is one of the following information: side link control information SCI, physical side link control channel PSCCH And the physical side link shared channel PSSCH.
  • the power control indication information includes a combination of one or more of the following: a hybrid automatic repeat request acknowledgement/failure HARQ ACK/NACK, a channel quality information indication CQI, a signal to noise ratio SINR, and a block error rate BLER .
  • the power control indication information includes a power variation parameter, where the power variation parameter is used to determine information transmission power of the second terminal device in the side link communication.
  • the terminal device 900 can implement various processes implemented by the terminal device in the foregoing embodiment. To avoid repetition, details are not described herein again.
  • An embodiment of the present disclosure provides a terminal device, where the terminal device may be an information receiving terminal in a side-link communication, by transmitting the power control indication information to the second terminal device that is the information transmitting terminal in the side-link communication, And causing the second terminal device to determine the information sending power of the information sending terminal in the side link communication, so that the power control indication information fed back by the information receiving terminal can accurately transmit the sending power of the information sending terminal in the side link communication
  • the control enables the first terminal device to always receive the information or signal sent by the information transmitting terminal with better receiving effect, realizes the closed loop power control of the side link communication, and improves the receiving effect of the information receiving terminal on the information or signal.
  • an embodiment of the present disclosure further provides a computer readable storage medium.
  • the computer readable storage medium stores one or more programs that, when executed by a terminal device including a plurality of applications, perform processing as shown in FIGS. 1, 2, 4, and 5
  • the terminal device performs the following operations:
  • the receiving the power control indication information from the first terminal device includes:
  • Target information from the first terminal device, where the target information carries the power control indication information, where the target information is one of the following information: a side link control information SCI, a physical side link control channel PSCCH, and The physical side link shares the channel PSSCH.
  • the power control indication information includes a combination of one or more of the following: a hybrid automatic repeat request acknowledgement/failure HARQ ACK/NACK, a channel quality information indication CQI, a signal to noise ratio SINR, and a block error rate BLER .
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the power control indication information includes the HARQ ACK/NACK
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the configuration information of the upper layer is determined, determined based on a predetermined protocol, or predefined.
  • the power control indication information includes the CQI
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the power control indication information includes a power variation parameter
  • the determining, according to the power control indication information, the information sending power of the terminal device in the side link communication including:
  • the value of the power variation parameter is a difference between a predetermined received power threshold of the first terminal device and a received power of the first terminal device, and a predetermined received power threshold of the first terminal device. It is determined based on high-level configuration information, determined based on a predetermined protocol, or pre-defined.
  • the terminal device includes multiple power control processes
  • the determining, according to the value of the power change parameter, the current transmit power, to obtain the information sending power of the terminal device in the side link communication including:
  • each of the power control processes has a mapping association relationship with the bandwidth part BWP and the resource pool, and the predetermined received power threshold of the first terminal device on the first power control process passes the first power control process.
  • the BWP and the resource pool having the mapping association are determined, and the first power control process is one of the plurality of power control processes.
  • the computer readable storage medium stores one or more programs that cause the terminal device to be executed when a terminal device including a plurality of application programs executes the processing procedures of FIGS. 3 to 5 Do the following:
  • the sending the power control indication information to the second terminal device includes:
  • target information carries the power control indication information
  • target information is one of the following information: side link control information SCI, physical side link control channel PSCCH And the physical side link shared channel PSSCH.
  • the power control indication information includes a combination of one or more of the following: a hybrid automatic repeat request acknowledgement/failure HARQ ACK/NACK, a channel quality information indication CQI, a signal to noise ratio SINR, and a block error rate BLER .
  • the power control indication information includes a power variation parameter, where the power variation parameter is used to determine information transmission power of the second terminal device in the side link communication.
  • the embodiment of the present disclosure provides a computer readable storage medium, where the information transmitting terminal in the side link communication receives the power control indication information sent by the first terminal device as the information receiving terminal in the side link communication, and determines the side link.
  • the information transmission power of the terminal device ie, the information transmitting terminal
  • the further adjustment of the transmission power of the terminal enables the first terminal device to always receive the information or signal sent by the information transmitting terminal with a better receiving effect, thereby reducing power waste and improving the overall performance of the communication system.
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • HDL Hardware Description Language
  • the controller can be implemented in any suitable manner, for example, the controller can take the form of, for example, a microprocessor or processor and a computer readable medium storing computer readable program code (eg, software or firmware) executable by the (micro)processor.
  • computer readable program code eg, software or firmware
  • examples of controllers include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, The Microchip PIC18F26K20 and the Silicone Labs C8051F320, the memory controller can also be implemented as part of the memory's control logic.
  • the controller can be logically programmed by means of logic gates, switches, ASICs, programmable logic controllers, and embedding.
  • Such a controller can therefore be considered a hardware component, and the means for implementing various functions included therein can also be considered as a structure within the hardware component.
  • a device for implementing various functions can be considered as a software module that can be both a method of implementation and a structure within a hardware component.
  • the system, device, module or unit illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product having a certain function.
  • a typical implementation device is a computer.
  • the computer can be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or A combination of any of these devices.
  • embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
  • processors CPUs
  • input/output interfaces network interfaces
  • memory volatile and non-volatile memory
  • the memory may include non-persistent memory, random access memory (RAM), and/or non-volatile memory in a computer readable medium, such as read only memory (ROM) or flash memory.
  • RAM random access memory
  • ROM read only memory
  • Memory is an example of a computer readable medium.
  • Computer readable media includes both permanent and non-persistent, removable and non-removable media.
  • Information storage can be implemented by any method or technology.
  • the information can be computer readable instructions, data structures, modules of programs, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory. (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, compact disk read only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape storage or other magnetic storage devices or any other non-transportable media can be used to store information that can be accessed by a computing device.
  • computer readable media does not include temporary storage of computer readable media, such as modulated data signals and carrier waves.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • program modules include routines, programs, objects, components, data structures, and the like that perform particular tasks or implement particular abstract data types.
  • the present disclosure may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are connected through a communication network.
  • program modules can be located in both local and remote computer storage media including storage devices.

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Abstract

本公开提供了一种旁链路的功率控制方法及终端设备，该方法应用于终端设备，包括：向旁链路通信中的第一终端设备发送信息，以使第一终端设备根据信息的接收情况生成功控指示信息，从第一终端设备接收功控指示信息；根据功控指示信息，确定旁链路通信中终端设备的信息发送功率。

Description

旁链路的功率控制方法及终端设备
相关申请的交叉引用
本申请主张在2018年4月12日在中国提交的中国专利申请号No.201810326499.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种旁链路的功率控制方法及终端设备。
背景技术
在第五代移动通信(5th Generation，5G)以及后续演进的无线网络通信中，旁链路(即Sidelink)通信通常具备功率控制机制，通过功率控制机制，可以调整旁链路通信中信息发送终端的发送功率，以使得该旁链路通信中的信息接收终端始终保持较好的接收效果。
通常，旁链路通信的功率控制机制通过旁链路通信中的开环功率控制机制实现。当前，旁链路通信中的开环功率控制可以基于长期演进(Long Term Evolution，LTE)中的开环功率控制方法实现，即可以使用终端设备与网络侧设备之间的路径损耗(即Pathloss)来实现对旁链路通信中终端设备的发射功率的集中式控制，具体地，信息发送终端可以根据网络侧设备下发的静态参数或者半静态参数计算得到基本开环操作点，基于得到的基本开环操作点可以确定该旁链路通信中信息发送终端的发送功率。
尽管可以通过上述方式实现旁链路通信中的开环功率控制，但是，通过旁链路通信中的开环功率控制并不能保证旁链路通信中的信息接收终端始终处于较好的信息接收效果中，从而使得旁链路通信中的功率控制准确性较差，并造成功率浪费，通信系统总体性能低下，因此，在5G以及后续演进的无线网络通信中，需要提供更优化或者更可靠的旁链路通信的功率控制方案。
发明内容
本公开实施例的目的是提供一种旁链路的功率控制方法及终端设备，以提高对旁链路通信中的功率控制的准确性，并减少功率浪费，提高通信系统总体性能。
为了实现上述目的，本公开实施例是这样实现的：
第一方面，提出了一种旁链路的功率控制方法，应用于终端设备，包括：
向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
从第一终端设备接收功控指示信息；
根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
第二方面，提出了一种旁链路的功率控制方法，应用于终端设备，包括：
从旁链路通信中的第二终端设备接收信息；
根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
第三方面，提出了一种终端设备，包括：
信息发送模块，用于向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
信息接收模块，用于从第一终端设备接收功控指示信息；
功率调整模块，用于根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
第四方面，提出了一种终端设备，包括：
信息接收模块，用于从旁链路通信中的第二终端设备接收信息，所述第二终端设备为所述旁链路通信中的信息发送终端；
信息发送模块，用于根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
第五方面，提出了一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实 现如上述第一方面所述的方法的步骤。
第六方面，提出了一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如上述第二方面所述的方法的步骤。
第七方面，提出了一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如上述第一方面或第二方面所述的方法的步骤。
由以上本公开实施例提供的技术方案可见，本公开实施例应用于终端设备，该终端设备可以是旁链路通信中的信息发送终端，通过接收作为旁链路通信中的信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开一种旁链路的功率控制方法实施例；
图2为本公开一种旁链路的功率控制系统的结构示意图；
图3为本公开另一种旁链路的功率控制方法实施例；
图4为本公开又一种旁链路的功率控制方法实施例；
图5为本公开又一种旁链路的功率控制方法实施例；
图6为本公开一种终端设备实施例；
图7为本公开另一种终端设备实施例；
图8为本公开又一种终端设备实施例；
图9为本公开又一种终端设备实施例。
具体实施方式
为了使本技术领域的人员更好地理解本公开中的技术方案，下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本公开保护的范围。说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一。
本公开实施例提供旁链路的功率控制方法及终端设备。本公开的技术方案，可以应用于各种通信系统，例如：全球移动通讯系统(Global System of Mobile communication，GSM)，码分多址(Code Division Multiple Access，CDMA)系统，宽带码分多址(Wideband Code Division Multiple Access Wireless，WCDMA)，通用分组无线业务(General Packet Radio Service，GPRS)，长期演进(Long Term Evolution，LTE)等。
用户侧设备(User Equipment，UE)，也可称之为移动终端(Mobile Terminal)、接入终端、用户单元、用户站、移动站、移动台、远端站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备。
网络侧设备可以是用于与移动设备通信的设备，网络侧设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)或接入点，或者车载设备、可穿戴设备，未来5G网络中的 网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的网络侧设备。
本公开所适用的系统，可以是频分双工(Frequency Division Duplex，FDD)，时分双工(Time Division Duplex，TDD)或者FDD与TDD两种双工方式聚合使用的系统，本公开对此不做限定。
本公开中提供的旁链路的功率控制方法及终端设备中的旁链路实际是指Sidelink，而Sidelink不仅仅可以称为旁链路，还可以称为副链路、侧链路或边链路等，本公开中仅以旁链路来表示Sidelink。
如图1所示，本公开一个实施例提供一种旁链路的功率控制方法，该方法可以应用于对旁链路通信的发送功率进行控制处理。该方法的执行主体可以为用户侧设备，其中，该用户侧设备可以为终端设备，该终端设备可以如手机、平板电脑或可穿戴设备等移动终端设备，该终端设备还可以如个人计算机等终端设备，该终端设备可以是旁链路通信中用于进行信息发送的终端设备。该方法具体可以包括步骤S102至S106。
在S102中，向旁链路通信中的第一终端设备发送信息，以使第一终端设备根据该信息的接收情况生成功控指示信息。
在S104中，从第一终端设备接收功控指示信息。
其中，第一终端设备可以是单一的独立终端设备，还可以是多个终端设备，也即是在旁链路通信中用于信息接收的终端设备可以包括多个。功控指示信息可以是用于指示旁链路通信中的信息发送终端是否对其信息发送功率进行调整的信息，功控指示信息中可以包括能够指示对旁链路通信中的终端设备的发送功率进行调整或控制的相关信息，功控指示信息中不仅可以包括是否对发送功率进行调整的信息，还可以包括如何调整的信息，如提高或者降低等，还可以包括发送功率的调整大小等信息，例如0.5毫瓦或1毫瓦等。需要说明的是，在实际应用中，功控指示信息不仅仅用于指示是否对发送功率进行调整，功控指示信息还可以具备其它用途或功能，例如判定信号质量的好与坏或判断信号中的噪声等，本公开实施例对此不做限定。
在实施中，针对上述S102和S104的处理，在5G或者后续演进的无线网络通信中，旁链路(即Sidelink)通信中的开环功率控制可以基于长期演进 (Long Term Evolution，LTE)中的开环功率控制方法实现，即可以使用终端设备与网络侧设备之间的路径损耗(即Pathloss)来实现对旁链路通信中终端设备的发射功率的集中式控制。其中，开环功率控制可以是不需要接收方对接收信息的情况进行反馈，发送方可以判断并控制其发送功率的功率控制方式，具体地，终端设备(即发送方)根据网络侧设备下发的静态参数或者半静态参数计算得到基本开环操作点，该基本开环操作点可以分成两部分：(1)一个半静态参数指示的终端设备开环功率的目标值P 0，(2)一个开环路径损耗补偿分量，该开环路径损耗补偿分量可以取决于终端设备对下行路径损耗的估算值PL，以及网络侧设备下发的路径损耗补偿因子α。因此，基本开环操作点可以如下：开环操作点＝P 0+α×PL。
在旁链路通信中，对于存在多个接收信息的用户侧设备(即第一终端设备)的信息发送终端设备来说，用于发送信息的终端设备只存在一个功率控制进程，该功率控制进程可以实现开环功率控制，旁链路通信的开环功率控制的基本公式可以如下公式(1)
Figure PCTCN2019082211-appb-000001
其中，P CMAX可以是终端设备的最大发射功率，M可以是分配的带宽(M的单位可以为RB)，PL可以是服务小区上的路径损耗的测量值，P 0和α可以是通过高层参数p0和alpha指示，对应着终端设备在物理旁链路共享信道(Physical Sidelink Shared Channel，PSSCH)上的开环功率目标值和功率损耗的补偿因子。
通过上述方式，可以基于LTE中的开环功率控制实现5G或者后续演进的无线网络通信中旁链路通信上的开环功率控制，但是却没有实现旁链路通信上的闭环功率控制。闭环功率控制拥有开环功率控制无法比拟的优势，例如，功率控制更准确更精确等，因此，旁链路通信中的闭环功率控制在5G或者后续演进的无线网络通信中是必要的，而如何实现旁链路通信中的闭环功率控制成为需要解决的问题，本公开实施例中提供一种可以实现旁链路通信中的闭环功率控制的机制，本公开实施例可以在旁链路通信的开环功率控制的基础上引入闭环功率控制以实现进一步的功率控制，具体处理可以包括 以下内容：
闭环功率控制可以是指发送方根据接收方发送的功控指示信息对发射功率进行控制的功率控制方式，闭环功率控制的处理过程中要求旁链路通信中存在一个反馈控制环路，可以通过对接收到的信号的信号质量和期望的信号质量进行比较判断，进而给出终端设备需要提高或降低发送功率的功控指示信息，该功控指示信息可以通过无线网络通信中的命令实现，具体如发送功率控制(Transmission Power Control，TPC)命令等。终端设备可以执行上述TPC命令以对旁链路通信中的发送功率进行调整。
具体地，如图2所示，旁链路通信中可以包括一个用于进行信息发送的终端设备，以及一个或多个用于接收信息的第一终端设备，终端设备中可以预先设定有信息发送功率，该信息发送功率可以是通过旁链路通信中的开环功率控制得到，或者其它方式(如预定协议或基于高层的配置信息等)得到等。当到达发送功率的预定检测周期，或需要调整旁链路通信中的发送功率时，终端设备可以以设定的信息发送功率，通过网络侧设备向第一终端设备发送信息或信息反馈请求，第一终端设备接收到该信息或信息反馈请求后，可以根据信息的接收情况(例如是否由于发送功率过小而没有接收到该信息，或是否由于第一终端设备出现系统故障而没有接收到该信息等)，收集第一终端设备接收的信号的信号质量的相关信息，可以对上述相关信息进行处理，得到处理后的信息，可以基于处理后的信息生成功控指示信息，第一终端设备可以将功控指示信息发送给终端设备，终端设备可以接收第一终端设备发送的功控指示信息。
在S106中，根据上述功控指示信息，确定上述旁链路通信中终端设备的信息发送功率。
其中，旁链路可以通过无线帧传输信号或信息，旁链路的一个子帧可以包括两个连续的时隙，并且可以以一个偶数时隙开始。
在实施中，可以通过相应的通信协议或设备之间的约定等方式预先配置终端设备发送信号的信号质量的阈值或期望值。当终端设备接收到第一终端设备发送的功控指示信息后，可以对功控指示信息进行分析，从中提取或计算出第一终端设备接收信号的信号质量的相关信息，然后，可以将提取或计 算出的信息与上述预先配置的信号质量的阈值或期望值进行比较，可以根据比较结果确定需要提高旁链路通信中终端设备(信息发送终端)的信息发送功率，还是需要降低旁链路通信中终端设备(信息发送终端)的信息发送功率，以及提高或降低发送功率的数值等，或者，还可以根据比较结果直接确定旁链路通信中终端设备(信息发送终端)的信息发送功率等。
例如，针对旁链路通信中可能存在的不同情况，可以配置多个不同的信号质量的阈值或期望值，具体如2个、3个或4个等，以配置2个信号质量的阈值或期望值为例，具体可以为：2个信号质量的阈值或期望值可以为K1和K2，且K1＜K2，如果信号质量小于或等于K1，则旁链路通信中终端设备(信息发送终端)的信息发送功率为1dBm，如果信号质量大于K1且小于K2，则旁链路通信中终端设备的信息发送功率为2dBm，如果信号质量大于或等于K2，则旁链路通信中终端设备的信息发送功率为4dBm。因此，当终端设备接收到功控指示信息后，可以根据功控指示信息确定第一终端设备接收信号的信号质量，可以通过判断该信号质量在上述区间中的位置，确定旁链路通信中终端设备的信息发送功率，具体如，如果通过功控指示信息确定的信号质量大于K1且小于K2，则此时，可以将终端设备的信息发送功率设置为2dBm，此时，终端设备可以以大小为2dBm的发送功率发送信息或信号。
本公开实施例提供一种旁链路的功率控制方法，应用于终端设备，该终端设备可以是旁链路通信中的信息发送终端，通过接收作为旁链路通信中的信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
如图3所示，本公开另一实施例提供的旁链路的功率控制方法，该方法可以应用于对旁链路通信的闭环功率进行控制处理中。该方法的执行主体可以为用户侧设备，其中，该用户侧设备可以为终端设备，该终端设备可以如 手机、平板电脑或可穿戴设备等移动终端设备，该终端设备还可以如个人计算机等终端设备，该终端设备可以是上述图1实施例中的第一终端设备，即可以为旁链路通信中用于进行信息接收的终端设备。该方法具体可以包括步骤S302至S304。
在S302中，从旁链路通信中的第二终端设备接收信息。
其中，第二终端设备可以是上述图1实施例中的终端设备，为了与上述图1中的第一终端设备进行区分，本实施例中，用于信息接收的终端设备为第一终端设备，用于信息发送的终端设备可以为第二终端设备。在实际应用中，一个终端设备可以处于多个不同的旁链路通信中，但是每个终端设备只存在一个发送功率。功控指示信息中不仅可以包括是否对发送功率进行调整的信息，还可以包括如何调整的信息，如提高或者降低等，还可以包括发送功率的调整大小等信息等。
在实施中，如图2所示，旁链路通信中可以包括一个用于进行信息发送的第二终端设备，以及一个或多个用于接收信息的第一终端设备，第二终端设备中可以预先设定有信息发送功率，该信息发送功率可以是通过旁链路通信中的开环功率控制得到，或者其它方式(如预定协议或基于高层的配置信息等)得到等。当到达发送功率的预定检测周期，或需要调整旁链路通信中第二终端设备的发送功率时，第二终端设备可以以设定的信息发送功率，通过网络侧设备向第一终端设备发送信息。
在S304中，根据上述信息的接收情况，向第二终端设备发送上述功控指示信息，以使第二终端设备根据该功控指示信息，确定上述旁链路通信中第二终端设备的信息发送功率。
在实施中，第一终端设备可以根据该信息的接收情况，收集第一终端设备接收的信号的信号质量的相关信息，可以基于上述信息生成功控指示信息(需要说明的是，该功控指示信息可以体现第一终端设备的信息接收情况)，第一终端设备可以将功控指示信息发送给第二终端设备。第二终端设备可以基于该功控指示信息，确定上述旁链路通信中第二终端设备(即该旁链路通信中的信息发送终端)的信息发送功率，具体处理过程可以参见上述S104的相关内内容，在此不再赘述。
本公开实施例提供一种旁链路的功率控制方法，应用于终端设备，该终端设备可以是旁链路通信中的信息接收终端，通过向作为旁链路通信中的信息发送终端的第二终端设备发送的功控指示信息，以使第二终端设备确定该旁链路通信中的信息发送终端的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
如图4所示，本公开另一实施例提供的旁链路的功率控制方法，该方法可以应用于对旁链路通信的闭环功率进行控制处理中。该方法的执行主体可以为用户侧设备，其中，该用户侧设备可以为终端设备，该终端设备可以如手机、平板电脑或可穿戴设备等移动终端设备，该终端设备还可以如个人计算机等终端设备。本实施例中的执行主体终端设备可以包括上述图1实施例中的第一终端设备，即可以为旁链路通信中用于进行信息接收的终端设备，以及上述图2实施例中的第二终端设备，即可以为旁链路通信中用于进行信息发送的终端设备。该方法具体可以包括步骤S402至S406。
在S402中，第一终端设备从第二终端设备接收信息。
上述S402的具体处理过程可以参见上述如图1和图3所述实施例的S104、S302和S304中的相关内容，在此不再赘述。
在S404中，第一终端设备根据上述信息的接收情况，向第二终端设备发送目标信息，该目标信息中携带功控指示信息，该目标信息可以为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
其中，目标信息可以是承载功控指示信息的信息，可以包括旁链路控制信息(Sidelink Control Information，SCI)、物理旁链路控制信道(Physical Sidelink Control Channel，PSCCH)，以及物理旁链路共享信道(Physical Sidelink Shared Channel，PSSCH)中的任一个，在实际应用中，目标信息并不限于上述三种，还可以包括多种，本公开实施例对此不做限定。该功控指 示信息可以包括以下一种或多种的组合：混合式自动重传请求确认(Hybrid Automatic Repeat reQuest Acknowledgement，HARQ ACK)/混合式自动重传请求失败(Hybrid Automatic Repeat reQuest Negative Acknowledgment，HARQ NACK)、信道质量的信息指示(Channel Quality Indicator，CQI)、信噪比(Signal to Interference plus Noise Ratio，SINR)和块差错率(Block Error Ratio，BLER)，在实际应用中，功控指示信息包含的内容并不限于上述四种，还可以包括多种，具体可以根据实际情况设定，本公开实施例对此不做限定。
在实施中，第一终端设备可以根据该信息的接收情况，收集该第一终端设备的信道质量的信息指示CQI、信噪比SINR和块差错率BLER，以及混合式自动重传请求确认/失败HARQ ACK/NACK等信息中的一种或多种，可以将收集到的上述信息生成功控指示信息，并可以将该功控指示信息携带在SCI、PSCCH或PSSCH中，通过SCI、PSCCH或PSSCH发送给第二终端设备。
在S406中，第二终端设备根据上述功控指示信息，确定上述旁链路通信中第二终端设备的信息发送功率。
在实施中，第二终端设备接收到第一终端设备发送的功控指示信息后，可以根据功控指示信息中的信息(即CQI、SINR、BLER和HARQ ACK/NACK中的一项信息或多项信息等)，判断是否需要对上述旁链路通信中第二终端设备的信息发送功率进行调整，如果不需要调整，则可以循环执行上述S402～S406的处理，如果需要调整，则可以通过功控指示信息确定第二终端设备的发送功率的调整大小，可以基于确定的调整大小对第二终端设备的发送功率进行调整，得到调整后的发送功率，此时，第二终端设备可以基于调整后的发送功率发送信息或信号等。上述具体处理过程也可以参见上述S104的相关内容。
在实际应用中，针对不同的情况，上述旁链路通信中第二终端设备的信息发送功率的确定方式可以不同，以下提供三种可选的处理方式，具体可以包括以下内容：
方式一，根据接收的功控指示信息的数目，以及第二终端设备与第一终端设备的总数目，确定上述旁链路通信中第二终端设备的信息发送功率。
在实施中，以实际的应用场景为例，例如在车辆队列(即Platooning)场 景中，若该车辆队列中包括6辆车，每辆车中设置有用于进行信息收发的终端设备，6辆车中可以包括第一车辆，该第一车辆可以是该车辆队列中排在最前边的车辆(也可以称为头车)，也可以是该车辆队列中排在最后边的车辆，还可以是该车辆队列中位于最前边和最后边之间的车辆等。如果6辆车中的终端设备均处于同一个旁链路通信中，第一车辆的终端设备(即第二终端设备)中可以预先设置有该旁链路通信中信息的初始发送功率(该初始发送功率可以是通过该旁链路通信中的开环功率控制得到，或者其它方式(如预定协议或基于高层的配置信息等)得到等)，则此时，第一车辆可以通过其终端设备向其他车辆发送信息，其他车辆如果能够正确接收到该信息，则可以向第一车辆反馈一个功控指示信息(或可以称为应答信息等)。如果第一车辆共接收到3个功控指示信息，则可以通过3个功控指示信息和车辆队列中的车辆总数(即第二终端设备与第一终端设备(即除第一车辆外的其它车辆中的终端设备)的总数目)，计算上述旁链路通信中第二终端设备(即第一车辆)的信息发送功率，例如，发送功率的表达式可以为f＝X dBm*N，其中，N为车辆队列中车辆的总数目减去第一车辆接收到的功控指示信息的数目，X的取值可以为固定值，具体可以根据实际情况设定，例如1或者3等。基于上述示例，第一车辆共接收到3个功控指示信息，车辆队列中车辆的总数目为6，则上述旁链路通信中第二终端设备(即第一车辆)的信息发送功率f＝3X dBm。此外，如果第一车辆共接收到5个功控指示信息，则上述旁链路通信中第二终端设备(即第一车辆)的信息发送功率f＝-X dBm。
由于功控指示信息中可以包括HARQ ACK/NACK、CQI、SINR和BLER等多种信息，不同的信息可以有不同的处理方式，以下对上述包含不同信息的情况进行详细说明，具体可以参见下述方式二和方式三。
方式二，该功控指示信息中可以包括HARQ ACK/NACK，则上述S406的处理可以为：根据HARQ NACK在HARQACK和HARQ NACK的总和中所占的比例与第一阈值，确定上述旁链路通信中第二终端设备的信息发送功率。
其中，该第一阈值可以基于高层的配置信息确定、基于预定协议确定或预先定义。高层的配置信息可以是指上述旁链路通信中高于第二终端设备的 通信层级，具体可以是网络侧设备(如基站等)，也可以是其它终端设备等。预先定义可以是根据实际情况指定或设定等。
在实施中，上述旁链路通信中的第二终端设备中可以预先设置有该旁链路通信中信息的初始发送功率(该初始发送功率可以是通过该旁链路通信中的开环功率控制得到，或者其它方式得到等)，则此时，第二终端设备可以向该旁链路通信中的第一终端设备发送信息，第一终端设备接收到该信息后，可以向第二终端设备发送HARQ ACK或HARQ NACK，第二终端设备可以统计接收到的HARQ NACK的数目、HARQ ACK的数目和HARQ NACK与HARQ ACK的总和，然后，可以计算HARQ NACK的数目在HARQ ACK和HARQ NACK的总和中所占的比例，即NACK/(NACK+ACK)。第二终端设备中可以预先设置有第一阈值，该第一阈值可以是根据实际情况而确定的期望值或最优值等，该第一阈值可以包括一个，也可以包括多个，如2个、3个或4个等，可以根据第一阈值的数目分别设置相应的发送功率计算方法或计算规则，然后，第二终端设备可以将得到的上述比例的数值与第一阈值进行比较，通过比较的结果可以使用相应的发送功率计算方法或计算规则，计算相对应的旁链路通信中第二终端设备的信息发送功率。
例如，第一阈值包括两个数值，可以分别为Pn1和Pn2，可以设定发送功率计算方法或计算规则如下：若Pn2＞x≥Pn1，则上述旁链路通信中第二终端设备的信息发送功率f＝1dBm；若Pn2≤x，则上述旁链路通信中第二终端设备的信息发送功率f＝3dBm，若Pn1＞x，则上述旁链路通信中第二终端设备的信息发送功率f＝0dBm，其中，x表示HARQ NACK的数目在HARQ ACK和HARQ NACK的总和中所占的比例，具体地，如果HARQ NACK的数目在HARQ ACK和HARQ NACK的总和中所占的比例x＝0.5，Pn1＝0.3，Pn2＝0.8，则通过上述发送功率计算方法或计算规则可以得到，上述旁链路通信中第二终端设备的信息发送功率为1dBm。
需要说明的是，上述仅以第一阈值包括两个数值为例进行说明，在实际应用中，第一阈值并不限于包括两个数值的情况，还可以包括两个以上的数值，具体可以根据实际情况设定，本公开实施例对此不做限定。
方式三，该功控指示信息中可以包括CQI，则上述S406的处理可以为： 根据该CQI与期望CQI之间的大小关系，确定上述旁链路通信中第二终端设备的信息发送功率。
其中，该期望CQI基于高层的配置信息确定、基于预定协议确定或预先定义。
在实施中，上述旁链路通信中的第二终端设备中可以预先设置有该旁链路通信中信息的初始发送功率(该初始发送功率可以是通过该旁链路通信中的开环功率控制得到，或者其它方式得到等)，则此时，第二终端设备可以向该旁链路通信中的第一终端设备发送信息，第一终端设备接收到该信息后，可以向第二终端设备发送CQI信息，第二终端设备接收到CQI信息后，可以在不同的资源池或者带宽部分((Bandwidth Part，BWP)上采用独立的闭环功率控制，以实现不同旁链路通信中独立的功率控制，具体地，可以预先设定期望CQI，该期望CQI可以是根据实际情况而确定的期望值或最优值等，该期望CQI可以包括一个，也可以包括多个，如2个、3个或4个等。可以根据期望CQI的数目分别设置相应的发送功率计算方法或计算规则，然后，第二终端设备可以将得到的CQI信息与期望CQI进行比较，通过比较的结果可以使用相应的发送功率计算方法或计算规则，计算相对应的旁链路通信中第二终端设备的信息发送功率。
例如，期望CQI包括两个数值，可以分别为a和b，可以设定发送功率计算方法或计算规则如下：若接收的CQI满足一定的取值范围，即[a，b]，则上述旁链路通信中第二终端设备不需要进行闭环功率控制；若接收的CQI小于数值a，则表明当前该旁链路通信中的信道质量较差，此时，可以适当提高该旁链路通信中第二终端设备的发送功率；若接收的CQI大于数值b，则表明当前该旁链路通信中的信道质量较好，此时，可以适当降低该旁链路通信中第二终端设备的发送功率。
需要说明的是，上述仅以期望CQI包括两个数值为例进行说明，在实际应用中，期望CQI并不限于包括两个数值的情况，还可以包括两个以上的数值，具体可以根据实际情况设定，本公开实施例对此不做限定。
本公开实施例提供一种旁链路的功率控制方法，应用于终端设备，该终端设备可以是旁链路通信中的信息发送终端，通过接收作为旁链路通信中的 信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
如图5所示，本公开又一实施例提供的旁链路的功率控制方法，该方法可以应用于对旁链路通信的闭环功率进行控制处理中。该方法的执行主体可以为用户侧设备，其中，该用户侧设备可以为终端设备，该终端设备可以如手机、平板电脑或可穿戴设备等移动终端设备，该终端设备还可以如个人计算机等终端设备。本实施例中的执行主体终端设备可以包括上述图1实施例中的第一终端设备，即可以为旁链路通信中用于进行信息接收的终端设备，以及上述图2实施例中的第二终端设备，即可以为旁链路通信中用于进行信息发送的终端设备。该方法具体可以包括步骤S502至S506。
在S502中，第一终端设备从第二终端设备接收信息。
上述S502的具体处理过程可以参见上述如图1和图3所述实施例的S104、S302和S304中的相关内容，在此不再赘述。
在S504中，第一终端设备根据上述信息的接收情况，向第二终端设备发送目标信息，该目标信息中携带功控指示信息，该目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH，该功控指示信息中包括功率变化参数。
其中，功率变化参数可以用于指示是否对旁链路通信中第二终端设备的信息发送功率进行调整，以及如何进行调整和调整的大小等。
在实施中，第一终端设备接收到信息后，可以将第一终端设备的接收功率与预先设定的接收功率阈值(具体可以是一个数值，也可以是一个取值范围等，本公开实施例不做限定)进行比较，可以根据比较结果确定是否对旁链路通信中第二终端设备的信息发送功率进行调整，如果需要调整，则可以获取相应的功率变化参数，并可以将该功率变化参数作为功控指示信息，并 将其携带在SCI、PSCCH或PSSCH中发送给第二终端设备。例如，若第一终端设备的接收功率大于预先设定的接收功率阈值，则功率变化参数为R1，若第一终端设备的接收功率小于预先设定的接收功率阈值，则功率变化参数为R2等，其中，R1和R2的大小可以根据实际情况确定，例如，R2为正数，R1为负数。
需要说明的是，第一终端设备向第二终端设备发送功控指示信息的处理过程中，可以如上述方式将功控指示信息携带在SCI、PSCCH或PSSCH中发送，还可以通过除了上述方式外的其它方式发送，如第一终端设备可以通过其它信道或通道向第二终端设备发送功控指示信息等，本公开实施例对此不做限定。
上述处理过程仅是一种可选的实现方式，在实际应用中，还可以包括其它实现方式，以下再提供一种可选的实现方式，具体可以包括以下内容：该功率变化参数的数值为第一终端设备的预定接收功率阈值与第一终端设备的接收功率之间的差值。
其中，第一终端设备的预定接收功率阈值基于高层的配置信息确定、基于预定协议确定或预先定义，第一终端设备的预定接收功率阈值对应的接收功率可以保证第一终端设备具备比较好的接收效果。
为了体现该功率变化参数的正负关系，可以上述差值的计算可以为：该功率变化参数的数值等于第一终端设备的预定接收功率阈值减去第一终端设备的接收功率。
例如，第一终端设备的接收功率为1dBm，上述旁链路通信中设定的第一终端设备的预定接收功率阈值为5dBm，则第一终端设备可以得到功率变化参数F＝5dBm-1dBm＝4dBm。
在S506中，第二终端设备根据上述功率变化参数的数值，对当前的发送功率进行调整，得到上述旁链路通信中第二终端设备的信息发送功率。
在实施中，第二终端设备可以接收第一终端设备通过SCI、PSCCH或PSSCH等发送的功控指示信息，然后，可以对该功控指示信息进行分析，可以从中提取出功率变化参数。第二终端设备为了保证旁链路通信中的第一终端设备具有较好的信息接收效果，可以对第二终端设备当前的发送功率进行 调整，具体地，可以在第二终端设备当前的发送功率的基础上，增加或减小功率变化参数的数值，其中，增大和减小的判断可以根据第一终端设备的接收功率与第一终端设备的预定接收功率阈值之间的大小关系确定，或者通过第一终端设备的预定接收功率阈值减去第一终端设备的接收功率得到的数值的正负确定等，例如，若第一终端设备的接收功率小于第一终端设备的预定接收功率阈值，则可以将第二终端设备当前的发送功率增加功率变化参数的数值，若第一终端设备的接收功率大于第一终端设备的预定接收功率阈值，则可以将第二终端设备当前的发送功率减小功率变化参数的数值。基于上述S504的示例，第一终端设备的接收功率为1dBm，上述旁链路通信中设定的第一终端设备的预定接收功率阈值为5dBm，功率变化参数F＝5dBm-1dBm＝4dBm，则上述旁链路通信中第二终端设备的信息发送功率即为第二终端设备当前的发送功率加上功率变化参数4dBm。然后，第二终端设备可以以上述增加4dBm后的发送功率发送信息或信号等。
此外，第二终端设备可能存在多个功率控制进程，每个功率控制进程可以对应一个发送功率，这样，对于上述功率变化参数的情况，每个功率控制进程都会有一个与其相对应的功率变化参数，则上述S506的具体处理过程可以包括以下步骤一和步骤二。
步骤一，根据每个功率控制进程相对应的功率变化参数的数值，确定每个功率控制进程对应的发送功率。
在实施中，针对多个功率控制进程中的任一个功率控制进程，可以通过上述处理过程通过功率控制进程相对应的功率变化参数的数值，计算该功率控制进程对应的发送功率，具体可以参见上述相关内容，在此不再赘述。
步骤二，根据多个功率控制进程对应的发送功率和功率确定规则，确定上述旁链路通信中第二终端设备的信息发送功率，该功率确定规则用于从多个功率控制进程对应的发送功率中选取一个或多个发送功率，以确定上述旁链路通信中第二终端设备的信息发送功率。
在实施中，功率确定规则的具体内容可以根据实际情况确定，本公开实施例对此不做限定。在实际应用中，上述步骤二的处理方式可以包括多种，以下提供两种可行的处理方式，具体可以包括：
方式一，上述旁链路通信中第二终端设备中的多个功率控制进程分别计算得到相应的发送功率后，可以在多个功率控制进程对应的发送功率中选择数值最大的发送功率作为上述旁链路通信中第二终端设备的信息发送功率，再或者，可以在多个功率控制进程对应的发送功率中选择数值次最大的发送功率作为上述旁链路通信中第二终端设备的信息发送功率，又或者，可以在多个功率控制进程对应的发送功率中选择数值最三大的发送功率作为上述旁链路通信中第二终端设备的信息发送功率，又或者，可以在多个功率控制进程对应的发送功率中随机选取一个发送功率作为上述旁链路通信中第二终端设备的信息发送功率；又或者，可以在多个功率控制进程对应的发送功率中选取一个处于预定取值范围内的发送功率作为上述旁链路通信中第二终端设备的信息发送功率等。
方式二，上述旁链路通信中第二终端设备中的多个功率控制进程分别计算得到相应的发送功率后，可以在多个功率控制进程对应的发送功率中选择大于某一指定数值的多个发送功率，再或者，可以在多个功率控制进程对应的发送功率中选择小于某一指定数值的多个发送功率，又或者，可以在多个功率控制进程对应的发送功率中选择处于预定取值范围内的多个发送功率，可以将选取的多个发送功率进行处理，例如，可以计算多个发送功率的算数平均值或几何平均值等，可以将处理后得到的数值作为上述旁链路通信中第二终端设备的信息发送功率。
需要说明的是，上述旁链路通信中第二终端设备中的每个功率控制进程与带宽部分BWP和资源池有映射关联关系，通过该映射关联关系，上述旁链路通信中第二终端设备中的每个功率控制进程都拥有了实际的载体。另外，对于包括多个功率控制进程的情况，第一终端设备的预定接收功率阈值也可以包括多个，具体地，如果多个功率控制进程中的一个功率控制进程设置为第一功率控制进程，则第一终端设备在第一功率控制进程上的预定接收功率阈值可以通过与第一功率控制进程存在映射关联关系的BWP和资源池确定。
其中，5G网络通信中可以最大支持400MHz的带宽，该带宽的数值远大于LTE网络通信中的最大20MHz的带宽，这样，5G网络通信中可以支持更大的系统与用户吞吐量。然而，支持400MHz的带宽对于终端设备的实现将 是一个巨大的挑战，400MHz的带宽不利于低成本终端设备的实现。因此，5G网络通信也支持动态灵活的带宽分配机制，可以将上述带宽划分成多个部分(即BWP)，以支持窄带的终端设备，或具备节能模式的终端设备的接入通信网络。5G网络通信中关于BWP的设计结论如下：
(1)一个终端设备可以被配置一个或多个BWP。
当终端设备被配置多个BWP时，每个BWP可以采用相同或不同的数字命理(即Numerologies，又称作参数集或者参数设定)。
(2)一个终端设备的下行(Downlink，DL)BWP和上行(Uplink，UL)BWP可以分别由网络侧设备进行配置。
(3)同一时刻终端设备仅被激活1个DL BWP和1个UL BWP。
(4)终端设备可以根据L1信令的指示，进行BWP的动态调整，包括：
情况1：BWP中心频点不变，BWP带宽变化；
情况2：BWP中心频点变化，BWP带宽不变；
情况3：BWP中心频点变化，BWP带宽变化。
本公开实施例提供一种旁链路的功率控制方法，应用于终端设备，该终端设备可以是旁链路通信中的信息发送终端，通过接收作为旁链路通信中的信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
以上为本公开实施例提供的一种旁链路的功率控制方法，基于同样的思路，本公开实施例还提供一种终端设备，如图6所示。
该终端设备可以为上述实施例中的第二终端设备，该终端设备可以包括信息发送模块601、信息接收模块602和功率调整模块603。
信息发送模块601，用于向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
信息接收模块602，用于从第一终端设备接收功控指示信息；
功率调整模块603，用于根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
本公开实施例中，所述信息接收模块602，用于从第一终端设备接收目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
本公开实施例中，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
本公开实施例中，所述功率调整模块603，用于根据接收的所述功控指示信息的数目，以及所述终端设备与第一终端设备的总数目，确定所述旁链路通信中所述终端设备的信息发送功率。
本公开实施例中，所述功控指示信息包括所述HARQ ACK/NACK；
其中，所述功率调整模块603，用于根据所述HARQ NACK在所述HARQ ACK和所述HARQ NACK的总和中所占的比例与第一阈值，确定所述旁链路通信中所述终端设备的信息发送功率，所述第一阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
本公开实施例中，所述功控指示信息包括所述CQI；
其中，所述功率调整模块603，用于根据所述CQI与期望CQI之间的大小关系，确定所述旁链路通信中所述终端设备的信息发送功率，所述期望CQI基于高层的配置信息确定、基于预定协议确定或预先定义。
本公开实施例中，所述功控指示信息中包括功率变化参数；
其中，所述功率调整模块603，用于根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率。
本公开实施例中，所述功率变化参数的数值为所述第一终端设备的预定接收功率阈值与所述第一终端设备的接收功率之间的差值，所述第一终端设备的预定接收功率阈值基于高层的配置信息确定、基于预定协议确定或预先 定义。
本公开实施例中，所述终端设备中包括多个功率控制进程；
其中，所述功率调整模块603，用于根据每个功率控制进程相对应的所述功率变化参数的数值，确定每个功率控制进程对应的发送功率；根据多个功率控制进程对应的发送功率和功率确定规则，确定所述终端设备的信息发送功率，所述功率确定规则用于从多个功率控制进程对应的发送功率中选取一个或多个发送功率，以确定所述终端设备的信息发送功率。
本公开实施例中，所述每个功率控制进程与带宽部分BWP和资源池有映射关联关系，所述第一终端设备在第一功率控制进程上的预定接收功率阈值通过与所述第一功率控制进程存在映射关联关系的BWP和资源池确定，所述第一功率控制进程为所述多个功率控制进程中的一个功率控制进程。
本公开实施例提供一种终端设备，该终端设备可以是旁链路通信中的信息发送终端，通过接收作为旁链路通信中的信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
基于同样的思路，本公开实施例还提供一种终端设备，如图7所示。
该终端设备可以为上述实施例中的第一终端设备，该终端设备可以包括信息接收模块701和信息发送模块702。
信息接收模块701，用于从旁链路通信中的第二终端设备接收信息；
信息发送模块702，用于根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
本公开实施例中，所述信息发送模块702，用于向所述第二终端设备发送目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物 理旁链路共享信道PSSCH。
本公开实施例中，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
本公开实施例中，所述功控指示信息中包括功率变化参数，所述功率变化参数用于确定所述旁链路通信中所述第二终端设备的信息发送功率。
本公开实施例提供一种终端设备，该终端设备可以是旁链路通信中的信息接收终端，通过向作为旁链路通信中的信息发送终端的第二终端设备发送的功控指示信息，以使第二终端设备确定该旁链路通信中的信息发送终端的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
图8是本公开另一个实施例提供的一种终端设备的框图。图8所示的终端设备800包括：至少一个处理器801、存储器802、至少一个网络接口804和用户接口803。终端设备800中的各个组件通过总线系统805耦合在一起。可理解，总线系统805用于实现这些组件之间的连接通信。总线系统805除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图8中将各种总线都标为总线系统805。
其中，用户接口803可以包括显示器、键盘、点击设备(例如，鼠标、轨迹球(trackball))、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器802可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可 用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器802旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器802存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统8021和应用程序8022。
其中，操作系统8021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序8022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序8022中。
在本公开实施例中，终端设备800还包括：存储在存储器上805并可在处理器801上运行的计算机程序，计算机程序被处理器801执行时实现如下步骤：
向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
从第一终端设备接收功控指示信息；
根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
上述本公开实施例揭示的方法可以应用于处理器801中，或者由处理器801实现。处理器801可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器801中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器801可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific  Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器802，处理器801读取存储器802中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器801执行时实现如上述网络单元的选取方法实施例的各步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
可选地，所述从第一终端设备接收功控指示信息，包括：
从第一终端设备接收目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
可选地，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
可选地，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据接收的所述功控指示信息的数目，以及所述终端设备与第一终端设备的总数目，确定所述旁链路通信中所述终端设备的信息发送功率。
可选地，所述功控指示信息包括所述HARQ ACK/NACK；
其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据所述HARQ NACK在所述HARQ ACK和所述HARQ NACK的总和中所占的比例与第一阈值，确定所述旁链路通信中所述终端设备的信息发送功率，所述第一阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
可选地，所述功控指示信息包括所述CQI；
其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据所述CQI与期望CQI之间的大小关系，确定所述旁链路通信中所述终端设备的信息发送功率，所述期望CQI基于高层的配置信息确定、基于预定协议确定或预先定义。
可选地，所述功控指示信息中包括功率变化参数；
其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率。
可选地，所述功率变化参数的数值为所述第一终端设备的预定接收功率阈值与所述第一终端设备的接收功率之间的差值，所述第一终端设备的预定接收功率阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
可选地，所述终端设备中包括多个功率控制进程；
其中，所述根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率，包括：
根据每个功率控制进程相对应的所述功率变化参数的数值，确定每个功 率控制进程对应的发送功率；
根据多个功率控制进程对应的发送功率和功率确定规则，确定所述终端设备的信息发送功率，所述功率确定规则用于从多个功率控制进程对应的发送功率中选取一个或多个发送功率，以确定所述终端设备的信息发送功率。
可选地，所述每个功率控制进程与带宽部分BWP和资源池有映射关联关系，所述第一终端设备在第一功率控制进程上的预定接收功率阈值通过与所述第一功率控制进程存在映射关联关系的BWP和资源池确定，所述第一功率控制进程为所述多个功率控制进程中的一个功率控制进程。
终端设备800能够实现前述实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
本公开实施例提供一种终端设备，该终端设备可以是旁链路通信中的信息发送终端，通过接收作为旁链路通信中的信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
图9是本公开另一个实施例提供的一种终端设备的框图。图9所示的终端设备900包括：至少一个处理器901、存储器902、至少一个网络接口904和用户接口903。终端设备900中的各个组件通过总线系统905耦合在一起。可理解，总线系统905用于实现这些组件之间的连接通信。总线系统905除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图9中将各种总线都标为总线系统905。
其中，用户接口903可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器902可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器 (Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器902旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器902存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统9021和应用程序9022。
其中，操作系统9021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序9022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序9022中。
在本公开实施例中，终端设备900还包括：存储在存储器上905并可在处理器901上运行的计算机程序，计算机程序被处理器901执行时实现如下步骤：
从旁链路通信中的第二终端设备接收信息；
根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
上述本公开实施例揭示的方法可以应用于处理器901中，或者由处理器901实现。处理器901可能是一种集成电路芯片，具有信号的处理能力。在 实现过程中，上述方法的各步骤可以通过处理器901中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器901可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器902，处理器901读取存储器902中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器901执行时实现如上述网络单元的选取方法实施例的各步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
所述向所述第二终端设备发送所述功控指示信息，包括：
向所述第二终端设备发送目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
可选地，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
可选地，所述功控指示信息中包括功率变化参数，所述功率变化参数用于确定所述旁链路通信中所述第二终端设备的信息发送功率。
终端设备900能够实现前述实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
本公开实施例提供一种终端设备，该终端设备可以是旁链路通信中的信息接收终端，通过向作为旁链路通信中的信息发送终端的第二终端设备发送的功控指示信息，以使第二终端设备确定该旁链路通信中的信息发送终端的信息发送功率，这样，通过信息接收终端反馈的功控指示信息可以对该旁链路通信中的信息发送终端的发送功率进行精准控制，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，实现了对旁链路通信的闭环功率控制，提高了信息接收终端对信息或信号的接收效果。
基于同样的思路，本公开实施例还提供一种计算机可读存储介质。
所述计算机可读存储介质存储一个或多个程序，所述一个或多个程序当被包括多个应用程序的终端设备执行如图1、图2、图4和图5的处理过程时，使得所述终端设备执行以下操作：
向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
从第一终端设备接收功控指示信息；
根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
可选地，所述从第一终端设备接收功控指示信息，包括：
从第一终端设备接收目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
可选地，所述功控指示信息包括以下一种或多种的组合：混合式自动重 传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
可选地，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据接收的所述功控指示信息的数目，以及终端设备与第一终端设备的总数目，确定所述旁链路通信中所述终端设备的信息发送功率。
可选地，所述功控指示信息包括所述HARQ ACK/NACK；
其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据所述HARQ NACK在所述HARQ ACK和所述HARQ NACK的总和中所占的比例与第一阈值，确定所述旁链路通信中所述终端设备的信息发送功率，所述第一阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
可选地，所述功控指示信息包括所述CQI；
其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据所述CQI与期望CQI之间的大小关系，确定所述旁链路通信中所述终端设备的信息发送功率，所述期望CQI基于高层的配置信息确定、基于预定协议确定或预先定义。
可选地，所述功控指示信息中包括功率变化参数；
其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率。
可选地，所述功率变化参数的数值为所述第一终端设备的预定接收功率阈值与所述第一终端设备的接收功率之间的差值，所述第一终端设备的预定接收功率阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
可选地，所述终端设备中包括多个功率控制进程；
其中，所述根据所述功率变化参数的数值，对当前的发送功率进行调整， 得到所述旁链路通信中所述终端设备的信息发送功率，包括：
根据每个功率控制进程相对应的所述功率变化参数的数值，确定每个功率控制进程对应的发送功率；
根据多个功率控制进程对应的发送功率和功率确定规则，确定所述终端设备的信息发送功率，所述功率确定规则用于从多个功率控制进程对应的发送功率中选取一个或多个发送功率，以确定所述终端设备的信息发送功率。
可选地，所述每个功率控制进程与带宽部分BWP和资源池有映射关联关系，所述第一终端设备在第一功率控制进程上的预定接收功率阈值通过与所述第一功率控制进程存在映射关联关系的BWP和资源池确定，所述第一功率控制进程为所述多个功率控制进程中的一个功率控制进程。
另外，所述计算机可读存储介质存储一个或多个程序，所述一个或多个程序当被包括多个应用程序的终端设备执行如图3-图5的处理过程时，使得所述终端设备执行以下操作：
从旁链路通信中的第二终端设备接收信息；
根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
可选地，所述向所述第二终端设备发送所述功控指示信息，包括：
向所述第二终端设备发送目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
可选地，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
可选地，所述功控指示信息中包括功率变化参数，所述功率变化参数用于确定所述旁链路通信中所述第二终端设备的信息发送功率。
本公开实施例提供一种计算机可读存储介质，旁链路通信中的信息发送终端接收作为旁链路通信中的信息接收终端的第一终端设备发送的功控指示信息，确定该旁链路通信中的上述终端设备(即信息发送终端)的信息发送 功率，这样，使得终端设备能够利用旁链路通信中的功控指示信息进行闭环功率控制，实现对该旁链路通信中的信息发送终端的发送功率的进一步调整，使得第一终端设备能够始终保证以较好的接收效果接收信息发送终端发送的信息或信号，从而可以减少功率浪费、提升通信系统总体性能。
在20世纪90年代，对于一个技术的改进可以很明显地区分是硬件上的改进(例如，对二极管、晶体管、开关等电路结构的改进)还是软件上的改进(对于方法流程的改进)。然而，随着技术的发展，当今的很多方法流程的改进已经可以视为硬件电路结构的直接改进。设计人员几乎都通过将改进的方法流程编程到硬件电路中来得到相应的硬件电路结构。因此，不能说一个方法流程的改进就不能用硬件实体模块来实现。例如，可编程逻辑器件(Programmable Logic Device，PLD)(例如现场可编程门阵列(Field Programmable Gate Array，FPGA))就是这样一种集成电路，其逻辑功能由用户对器件编程来确定。由设计人员自行编程来把一个数字系统“集成”在一片PLD上，而不需要请芯片制造厂商来设计和制作专用的集成电路芯片。而且，如今，取代手工地制作集成电路芯片，这种编程也多半改用“逻辑编译器(logic compiler)”软件来实现，它与程序开发撰写时所用的软件编译器相类似，而要编译之前的原始代码也得用特定的编程语言来撰写，此称之为硬件描述语言(Hardware Description Language，HDL)，而HDL也并非仅有一种，而是有许多种，如ABEL(Advanced Boolean Expression Language)、AHDL(Altera Hardware Description Language)、Confluence、CUPL(Cornell University Programming Language)、HDCal、JHDL(Java Hardware Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby Hardware Description Language)等，目前最普遍使用的是VHDL(Very-High-Speed Integrated Circuit Hardware Description Language)与Verilog。本领域技术人员也应该清楚，只需要将方法流程用上述几种硬件描述语言稍作逻辑编程并编程到集成电路中，就可以很容易得到实现该逻辑方法流程的硬件电路。
控制器可以按任何适当的方式实现，例如，控制器可以采取例如微处理器或处理器以及存储可由该(微)处理器执行的计算机可读程序代码(例如软件或固件)的计算机可读介质、逻辑门、开关、专用集成电路(Application  Specific Integrated Circuit，ASIC)、可编程逻辑控制器和嵌入微控制器的形式，控制器的例子包括但不限于以下微控制器：ARC 625D、Atmel AT91SAM、Microchip PIC18F26K20以及Silicone Labs C8051F320，存储器控制器还可以被实现为存储器的控制逻辑的一部分。本领域技术人员也知道，除了以纯计算机可读程序代码方式实现控制器以外，完全可以通过将方法步骤进行逻辑编程来使得控制器以逻辑门、开关、专用集成电路、可编程逻辑控制器和嵌入微控制器等的形式来实现相同功能。因此这种控制器可以被认为是一种硬件部件，而对其内包括的用于实现各种功能的装置也可以视为硬件部件内的结构。或者甚至，可以将用于实现各种功能的装置视为既可以是实现方法的软件模块又可以是硬件部件内的结构。
上述实施例阐明的系统、装置、模块或单元，具体可以由计算机芯片或实体实现，或者由具有某种功能的产品来实现。一种典型的实现设备为计算机。具体的，计算机例如可以为个人计算机、膝上型计算机、蜂窝电话、相机电话、智能电话、个人数字助理、媒体播放器、导航设备、电子邮件设备、游戏控制台、平板计算机、可穿戴设备或者这些设备中的任何设备的组合。
为了描述的方便，描述以上装置时以功能分为各种单元分别描述。当然，在实施本公开时可以把各单元的功能在同一个或多个软件和/或硬件中实现。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
在一个典型的配置中，计算设备包括一个或多个处理器(CPU)、输入/输出接口、网络接口和内存。
内存可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)。内存是计算机可读介质的示例。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个......”限定的要素，并不排除在包括所述要素的过程、方法、商 品或者设备中还存在另外的相同要素。
本领域技术人员应明白，本公开的实施例可提供为方法、系统或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开可以在由计算机执行的计算机可执行指令的一般上下文中描述，例如程序模块。一般地，程序模块包括执行特定任务或实现特定抽象数据类型的例程、程序、对象、组件、数据结构等等。也可以在分布式计算环境中实践本公开，在这些分布式计算环境中，由通过通信网络而被连接的远程处理设备来执行任务。在分布式计算环境中，程序模块可以位于包括存储设备在内的本地和远程计算机存储介质中。
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于系统实施例而言，由于其基本相似于方法实施例，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
以上所述仅为本公开的实施例而已，并不用于限制本公开。对于本领域技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本公开的权利要求范围之内。

Claims (31)

  1. 一种旁链路的功率控制方法，应用于终端设备，包括：
    向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
    从所述第一终端设备接收功控指示信息；
    根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
  2. 根据权利要求1所述的方法，其中，所述从第一终端设备接收功控指示信息，包括：
    从第一终端设备接收目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
  3. 根据权利要求1所述的方法，其中，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
  4. 根据权利要求3所述的方法，其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
    根据接收的所述功控指示信息的数目，以及所述终端设备与第一终端设备的总数目，确定所述旁链路通信中所述终端设备的信息发送功率。
  5. 根据权利要求3所述的方法，其中，所述功控指示信息包括所述HARQ ACK/NACK；
    其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
    根据所述HARQ NACK在所述HARQ ACK和所述HARQ NACK的总和 中所占的比例与第一阈值，确定所述旁链路通信中所述终端设备的信息发送功率，所述第一阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
  6. 根据权利要求3所述的方法，其中，所述功控指示信息包括所述CQI；
    其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
    根据所述CQI与期望CQI之间的大小关系，确定所述旁链路通信中所述终端设备的信息发送功率，所述期望CQI基于高层的配置信息确定、基于预定协议确定或预先定义。
  7. 根据权利要求1或2所述的方法，其中，所述功控指示信息中包括功率变化参数；
    其中，所述根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率，包括：
    根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率。
  8. 根据权利要求7所述的方法，其中，所述功率变化参数的数值为所述第一终端设备的预定接收功率阈值与所述第一终端设备的接收功率之间的差值，所述第一终端设备的预定接收功率阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
  9. 根据权利要求8所述的方法，其中，所述终端设备中包括多个功率控制进程；
    其中，所述根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率，包括：
    根据每个功率控制进程相对应的所述功率变化参数的数值，确定每个功率控制进程对应的发送功率；
    根据多个功率控制进程对应的发送功率和功率确定规则，确定所述终端设备的信息发送功率，所述功率确定规则用于从多个功率控制进程对应的发送功率中选取一个或多个发送功率，以确定所述终端设备的信息发送功率。
  10. 根据权利要求9所述的方法，其中，所述每个功率控制进程与带宽部分BWP和资源池有映射关联关系，所述第一终端设备在第一功率控制进程上的预定接收功率阈值通过与所述第一功率控制进程存在映射关联关系的BWP和资源池确定，所述第一功率控制进程为所述多个功率控制进程中的一个功率控制进程。
  11. 一种旁链路的功率控制方法，应用于终端设备，包括：
    从旁链路通信中的第二终端设备接收信息；
    根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
  12. 根据权利要求11所述的方法，其中，所述向所述第二终端设备发送所述功控指示信息，包括：
    向所述第二终端设备发送目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
  13. 根据权利要求11所述的方法，其中，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
  14. 根据权利要求11所述的方法，其中，所述功控指示信息中包括功率变化参数，所述功率变化参数用于确定所述旁链路通信中所述第二终端设备的信息发送功率。
  15. 一种终端设备，包括：
    信息发送模块，用于向旁链路通信中的第一终端设备发送信息，以使所述第一终端设备根据所述信息的接收情况生成功控指示信息；
    信息接收模块，用于从第一终端设备接收功控指示信息；
    功率调整模块，用于根据所述功控指示信息，确定所述旁链路通信中所述终端设备的信息发送功率。
  16. 根据权利要求15所述的终端设备，其中，所述信息接收模块，用于从第一终端设备接收目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
  17. 根据权利要求15所述的终端设备，其中，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
  18. 根据权利要求17所述的终端设备，其中，所述功率调整模块，用于根据接收的所述功控指示信息的数目，以及所述终端设备与第一终端设备的总数目，确定所述旁链路通信中所述终端设备的信息发送功率。
  19. 根据权利要求17所述的终端设备，其中，所述功控指示信息包括所述HARQ ACK/NACK；
    其中，所述功率调整模块，用于根据所述HARQ NACK在所述HARQ ACK和所述HARQ NACK的总和中所占的比例与第一阈值，确定所述旁链路通信中所述终端设备的信息发送功率，所述第一阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
  20. 根据权利要求17所述的终端设备，其中，所述功控指示信息包括所 述CQI；
    其中，所述功率调整模块，用于根据所述CQI与期望CQI之间的大小关系，确定所述旁链路通信中所述终端设备的信息发送功率，所述期望CQI基于高层的配置信息确定、基于预定协议确定或预先定义。
  21. 根据权利要求15或16所述的终端设备，其中，所述功控指示信息中包括功率变化参数；
    其中，所述功率调整模块，用于根据所述功率变化参数的数值，对当前的发送功率进行调整，得到所述旁链路通信中所述终端设备的信息发送功率。
  22. 根据权利要求21所述的终端设备，其中，所述功率变化参数的数值为所述第一终端设备的预定接收功率阈值与所述第一终端设备的接收功率之间的差值，所述第一终端设备的预定接收功率阈值基于高层的配置信息确定、基于预定协议确定或预先定义。
  23. 根据权利要求22所述的终端设备，其中，所述终端设备中包括多个功率控制进程；
    其中，所述功率调整模块，用于根据每个功率控制进程相对应的所述功率变化参数的数值，确定每个功率控制进程对应的发送功率；根据多个功率控制进程对应的发送功率和功率确定规则，确定所述终端设备的信息发送功率，所述功率确定规则用于从多个功率控制进程对应的发送功率中选取一个或多个发送功率，以确定所述终端设备的信息发送功率。
  24. 根据权利要求23所述的终端设备，其中，所述每个功率控制进程与带宽部分BWP和资源池有映射关联关系，所述第一终端设备在第一功率控制进程上的预定接收功率阈值通过与所述第一功率控制进程存在映射关联关系的BWP和资源池确定，所述第一功率控制进程为所述多个功率控制进程中的一个功率控制进程。
  25. 一种终端设备，包括：
    信息接收模块，用于从旁链路通信中的第二终端设备接收信息；
    信息发送模块，用于根据所述信息的接收情况，向所述第二终端设备发送功控指示信息，以使所述第二终端设备根据所述功控指示信息，确定所述旁链路通信中所述第二终端设备的信息发送功率。
  26. 根据权利要求25所述的终端设备，其中，所述信息发送模块，用于向所述第二终端设备发送目标信息，所述目标信息中携带所述功控指示信息，所述目标信息为下列信息中的一种：旁链路控制信息SCI、物理旁链路控制信道PSCCH，以及物理旁链路共享信道PSSCH。
  27. 根据权利要求25所述的终端设备，其中，所述功控指示信息包括以下一种或多种的组合：混合式自动重传请求确认/失败HARQ ACK/NACK、信道质量的信息指示CQI、信噪比SINR和块差错率BLER。
  28. 根据权利要求25所述的终端设备，其中，所述功控指示信息中包括功率变化参数，所述功率变化参数用于确定所述旁链路通信中所述第二终端设备的信息发送功率。
  29. 一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至10中任一项所述的方法的步骤。
  30. 一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求11至14中任一项所述的方法的步骤。
  31. 一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如权利要求1至10或11至14中任一项所述的 方法的步骤。
PCT/CN2019/082211 2018-04-12 2019-04-11 旁链路的功率控制方法及终端设备 WO2019196895A1 (zh)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3900235A4 (en) * 2018-12-20 2022-07-06 Lenovo (Beijing) Limited METHOD AND APPARATUS FOR PLANNING SIDELINK RESOURCES
WO2020177030A1 (en) * 2019-03-01 2020-09-10 Lenovo (Beijing) Limited Method and apparatus for controlling transmission power on a sidelink
CN111757445A (zh) * 2019-03-28 2020-10-09 北京三星通信技术研究有限公司 功控方法及执行功控的终端
US11665647B2 (en) * 2019-08-08 2023-05-30 Qualcomm Incorporated Sidelink closed-loop transmit power control command processing
US20220361111A1 (en) * 2019-08-26 2022-11-10 Lg Electronics Inc. Method and device for determining sidelink transmission power in nr v2x
CN114339978A (zh) * 2020-09-30 2022-04-12 展讯通信（上海）有限公司 支持prs的侧链功率分配方法及装置、存储介质、终端
US11690024B2 (en) * 2021-01-27 2023-06-27 Qualcomm Incorporated Configuring client device regulation modes for sidelink communications

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103139889A (zh) * 2011-11-28 2013-06-05 华为技术有限公司 D2d的功率控制方法、用户设备、基站和通讯系统
WO2014113424A1 (en) * 2013-01-17 2014-07-24 Intel Corporation Transmission power control schemes for d2d communications
CN105323841A (zh) * 2014-08-01 2016-02-10 电信科学技术研究院 一种d2d传输功率控制方法及装置
CN105874854A (zh) * 2014-01-27 2016-08-17 太阳专利信托公司 无线装置和功率控制方法
WO2018027993A1 (zh) * 2016-08-12 2018-02-15 华为技术有限公司 功率控制方法、装置、终端及网络设备

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212399B1 (en) * 1998-03-06 2001-04-03 Lucent Technologies, Inc. Method and apparatus for controlling the power radiated by a wireless terminal in a telecommunications system based on a variable step size
CN100384099C (zh) * 2004-12-13 2008-04-23 华为技术有限公司 上行高速专用物理控制信道的功率控制方法
KR101505687B1 (ko) * 2007-11-05 2015-03-31 엘지전자 주식회사 무선통신 시스템에서 전력제어 방법
US9072056B2 (en) * 2009-06-16 2015-06-30 Sharp Kabushiki Kaisha Mobile station apparatus, base station apparatus, radio communication method and integrated circuit
CN102083189B (zh) * 2010-12-27 2016-07-06 中兴通讯股份有限公司 一种物理上行控制信道的功率控制方法及装置
CN102427601B (zh) * 2011-12-30 2014-09-03 华为技术有限公司 上行增强专用物理控制信道外环功率控制方法和用户设备
US9591646B2 (en) * 2012-06-12 2017-03-07 Qualcomm Incorporated Reference signal power impact determination in new carrier type in LTE
KR102301828B1 (ko) * 2014-05-02 2021-09-14 삼성전자 주식회사 무선 통신 시스템에서 실시간 송신 전력 조절 방법 및 장치
KR102319182B1 (ko) * 2014-05-09 2021-10-29 삼성전자 주식회사 D2D(Device to Device)통신 단말의 통신 방법 및 장치
US10172098B2 (en) * 2014-05-29 2019-01-01 Telefonaktiebolaget L M Ericsson (Publ) Power control for mitigating device-to-device interference to adjacent networks
JP6377773B2 (ja) * 2014-06-13 2018-08-22 京セラ株式会社 ユーザ装置（ｕｅ）デバイス間の通信のための、セルラ通信リンクとデバイス間（ｄ２ｄ）通信リンクとの間の選択
CN105306178B (zh) * 2014-07-31 2021-02-09 索尼公司 无线通信设备和无线通信方法
CN106171016B (zh) * 2015-01-30 2019-08-20 华为技术有限公司 一种功率控制方法及设备
JP6910310B2 (ja) * 2016-02-08 2021-07-28 京セラ株式会社 無線端末
WO2017156151A1 (en) * 2016-03-10 2017-09-14 Interdigital Patent Holdings, Inc. Systems and methods for preamble construction in uplink multi-user orthogonal frequency division multiple access networks
WO2019027273A1 (ko) * 2017-08-03 2019-02-07 엘지전자 주식회사 무선 통신 시스템에서 전송 전력을 제어하는 방법 및 이를 위한 장치
EP3711383B1 (en) * 2017-11-16 2023-08-09 Nokia Technologies Oy Maximum power reduction for an uplink bandwidth part for wireless networks
CN111345076A (zh) * 2017-11-17 2020-06-26 联想（新加坡）私人有限公司 上行链路传输的功率控制配置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103139889A (zh) * 2011-11-28 2013-06-05 华为技术有限公司 D2d的功率控制方法、用户设备、基站和通讯系统
WO2014113424A1 (en) * 2013-01-17 2014-07-24 Intel Corporation Transmission power control schemes for d2d communications
CN105874854A (zh) * 2014-01-27 2016-08-17 太阳专利信托公司 无线装置和功率控制方法
CN105323841A (zh) * 2014-08-01 2016-02-10 电信科学技术研究院 一种d2d传输功率控制方法及装置
WO2018027993A1 (zh) * 2016-08-12 2018-02-15 华为技术有限公司 功率控制方法、装置、终端及网络设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3780773A4 *

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