WO2023060477A1 - Procédé de communication sans fil, terminal distant et dispositif de réseau - Google Patents

Procédé de communication sans fil, terminal distant et dispositif de réseau Download PDF

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Publication number
WO2023060477A1
WO2023060477A1 PCT/CN2021/123557 CN2021123557W WO2023060477A1 WO 2023060477 A1 WO2023060477 A1 WO 2023060477A1 CN 2021123557 W CN2021123557 W CN 2021123557W WO 2023060477 A1 WO2023060477 A1 WO 2023060477A1
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WIPO (PCT)
Prior art keywords
sidelink
time
measurement
configuration
time interval
Prior art date
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PCT/CN2021/123557
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English (en)
Chinese (zh)
Inventor
胡荣贻
张晋瑜
卢前溪
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180100449.3A priority Critical patent/CN117716723A/zh
Priority to PCT/CN2021/123557 priority patent/WO2023060477A1/fr
Publication of WO2023060477A1 publication Critical patent/WO2023060477A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method, a remote terminal, and a network device.
  • End-to-end communication refers to end-to-end communication.
  • V2V Vehicle to Vehicle
  • V2X Vehicle to Everything
  • D2D Device to Device
  • the sending end sends a direct communication request (Direct Communication Request, DCR) message to the receiving end, and if the receiving end responds to the DCR message, the receiving end and the sending end can directly perform end-to-end communication.
  • DCR Direct Communication Request
  • the sending end determines that the receiving end is not within the range of direct communication.
  • the relay terminal can be used to ensure that the communication end can be realized between the sending end and the receiving end. end-to-end communication.
  • the transmitting end selects and/or reselects the relay terminal through the discovered side line discovery signal (SL discovery), and performs side line communication with the receiving end through the selected and/or reselected relay terminal.
  • SL discovery discovered side line discovery signal
  • the embodiment of the present application provides a wireless communication method, a remote terminal and a network device, which can not only realize the relay selection operation and/or relay reselection operation of the remote terminal, but also improve the relay selection operation and/or relay selection operation. The accuracy of subsequent reselection operations.
  • the present application provides a wireless communication method, which is suitable for a remote terminal, and the method includes:
  • the first time information is used to determine a measurement time for measuring the first sidelink, and the first time information includes a measurement time configuration , at least one of a sidelink time interval configuration, a signal period of a sidelink discovery signal, and a predefined period;
  • the relay terminal is selected and/or reselected.
  • the present application provides a wireless communication method, which is suitable for network devices, and the method includes:
  • Measurement time configuration sidelink time interval configuration, signal period, type of measurement signal, frequency location information for measurement.
  • the present application provides a remote terminal, configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the remote terminal includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • the remote terminal may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the remote terminal may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the remote terminal is a communication chip, the sending unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module configured to execute the method in the above second aspect or each implementation manner thereof.
  • the network device may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the network device may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the network device is a communication chip, the receiving unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides a remote terminal, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, so as to execute the method in the above first aspect or each implementation manner thereof.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the remote terminal further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, so as to execute the method in the above second aspect or each implementation manner thereof.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the network device further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application provides a chip configured to implement any one of the above-mentioned first aspect to the second aspect or a method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first to second aspects or various implementations thereof method in .
  • the present application provides a computer-readable storage medium for storing a computer program, and the computer program enables the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof .
  • the present application provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • the present application provides a computer program, which, when run on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the first time information to assist the remote terminal to determine the measurement time of the first sidelink it is equivalent to performing measurement based on the first time information and obtaining the first sidelink
  • the first measurement result of the link, and the first measurement result can assist the remote terminal to implement the relay selection operation and/or the relay reselection operation; in addition, in order to meet the requirements of the measurement of the signal on the sidelink Accuracy requirements, it is necessary to ensure that the signal on the sidelink is periodic.
  • this application designs the first time information to include the measurement time configuration, the time interval configuration of the sidelink, and the signal period of the sidelink discovery signal , at least one of the predefined periods, which is beneficial for the remote terminal to obtain the first measurement result within the measurement time that meets the measurement accuracy requirements, thereby improving the accuracy of the relay selection operation and/or relay reselection operation .
  • Fig. 1 is an example of an applicable scenario of the embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • Fig. 3 is another schematic flowchart of the wireless communication method provided by the embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a remote terminal provided by an embodiment of the present application.
  • Fig. 5 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • FIG. 1 is an example of a system framework 100 provided by an embodiment of the present application.
  • the system framework 100 may include a first remote terminal 110, a first relay terminal 120, and a second remote terminal 130, and the first remote terminal 110 may pass through the first relay
  • the terminal 120 communicates with the second remote terminal 130, and the first remote terminal 110, the first relay terminal 120, and the second remote terminal 130 all support the 3rd Generation Partnership Project (The 3rd Generation Partnership Project , 3GPP) New Radio (NR) PC5 interface protocol.
  • 3rd Generation Partnership Project The 3rd Generation Partnership Project , 3GPP) New Radio (NR) PC5 interface protocol.
  • the first remote terminal 110, the first relay terminal 120, and the second remote terminal 130 may be terminal devices that have been authenticated through the network when there is network coverage.
  • the first remote terminal 110 and the second remote terminal may be authenticated as terminal devices that can access the wireless network through a relay terminal, in other words, the first remote terminal 110 and the second
  • the remote terminal is authorized to act as a remote user equipment (Remote UE).
  • the first relay terminal 120 may be a terminal device certified to work as a relay node.
  • the first remote terminal 110, the first relay terminal 120, and the second remote terminal 130 may all be authorized to send and receive messages related to relay discovery, and the messages related to relay discovery may include Discovery messages and discovery request messages.
  • the terminal device in the embodiment of the present invention may be any device or device configured with a physical layer and a media access control layer, and the terminal device may also be called an access terminal.
  • user equipment User Equipment, UE
  • subscriber unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless Handheld devices with communication capabilities, computing devices or other linear processing devices connected to wireless modems, in-vehicle devices, wearable devices, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the embodiment of the present invention is described by taking a vehicle-mounted terminal as an example, but it is not limited thereto.
  • Fig. 1 is only an example of the present application, and should not be construed as a limitation to the present application.
  • the system framework 100 may be a system framework for any terminal to another terminal through a relay terminal.
  • the framework 100 may be a system framework for a vehicle-mounted terminal to a vehicle-mounted terminal through a relay terminal.
  • a remote vehicle passes through a relay vehicle to a remote vehicle
  • a remote vehicle passes through a relay device to other devices
  • a remote terminal passes through a relay terminal to a remote terminal, and so on.
  • FIG. 2 shows a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 may be executed by a remote terminal, and the method 200 may also be executed by a sending end.
  • the remote device shown in FIG. 2 may be the first remote device 110 shown in FIG. 1 .
  • the method 200 may include part or all of the following:
  • S210 Acquire a first measurement result of the first sidelink based on first time information; the first time information is used to determine a measurement time for measuring the first sidelink, and the first time information includes measurement At least one of time configuration, sidelink time interval configuration, signal period of sidelink discovery signal, and predefined period;
  • the first time information to assist the remote terminal to determine the measurement time of the first sidelink it is equivalent to performing measurement based on the first time information and obtaining the first sidelink
  • the first measurement result of the link, and the first measurement result can assist the remote terminal to implement the relay selection operation and/or the relay reselection operation; in addition, in order to meet the requirements of the measurement of the signal on the sidelink Accuracy requirements, it is necessary to ensure that the signal on the sidelink is periodic.
  • this application designs the first time information to include the measurement time configuration, the time interval configuration of the sidelink, and the signal period of the sidelink discovery signal , at least one of the predefined periods, which is beneficial for the remote terminal to obtain the first measurement result within the measurement time that meets the measurement accuracy requirements, thereby improving the accuracy of the relay selection operation and/or relay reselection operation .
  • the first time information is intended to be used to assist the remote terminal in determining the measurement time of the first sidelink, and the present application does not limit its specific implementation form.
  • the first time information may be configuration information or predefined information.
  • the measurement time configuration, the sidelink time interval configuration, and the signal period of the sidelink discovery signal may be information configured by a network device.
  • the measurement time of the first sidelink may be a time period, may also be a time window, or may be a measurement interval, which is not specifically limited in the present application.
  • the present application does not limit the criterion for selecting and/or reselecting the relay terminal based on the first measurement result.
  • the relay selection criterion or relay reselection criterion in LTE for example, the relay terminal may be selected and/or reselected based on the 4 times of measurement results, so as to meet the expected accuracy requirement.
  • the sidewalk discovery signal is usually transmitted together with the data signal in the communication channel (communication channel), that is to say, there is no channel dedicated to carrying the sidewalk discovery signal; based on this, the present application
  • the measurable signal is extended from the sidelink discovery signal to a sidelink discovery signal, a data signal, and a reference signal associated with the data signal on the sidelink, so as to Ensure that measurement results can be obtained in various scenarios.
  • the measurement time configuration is used to configure a measurement time window of the sidelink.
  • the measurement time window may not only be used for transmitting side-link discovery signals, but may also be used for transmitting other signals, such as data signals and/or reference signals related to data signals.
  • the remote terminal may measure the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink within the measurement time window.
  • the measurement time window is a measurement time window shared by sidelink discovery signals, data signals, or reference signals associated with data signals on the sidelink.
  • the sidelink discovery signal (sidelink discovery) may include public safety related (public safety related, PS related) and non-public safety related (non-PS related) sidelink discovery signal
  • the sidelink discovery signal related to public safety includes Relay related (relay related) and non-relay related (non-relay related) sideline discovery signals.
  • the reference signal associated with the data signal may be a modulation and demodulation signal or other reference signal associated with the data signal, which is not specifically limited in the present application.
  • the measurement time window may also be a time window defined for the sidewalk discovery signal, and at this time, the measurement time configuration may be referred to as the measurement time configuration for the sidewalk discovery signal (measurement time configuration, MTC).
  • the measurement time configuration may also be called a sidelink discovery measurement time configuration (SD-MTC) or a discovery measurement timing configuration (DMTC).
  • the measurement time configuration may be exchanged between network devices or between a CU and a DU.
  • the measurement time configuration may be exchanged between network devices or between a CU and a DU through an X2/Xn interface or an F1 message.
  • the measurement time configuration may be configured through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the time window configured by the measurement time configuration may be the time window for Layer 3 measurement.
  • the measurement time configuration can be configured for the remote terminal, which is used for relay selection and/or relay reselection on the sidelink The sidewalk finds the signal for measurement.
  • layer 3 is used to transmit control messages.
  • layer 3 includes but is not limited to the protocol (Internet Protocol, IP) layer of the Internet, the radio resource control (Radio Resource Control, RRC) layer and the non-access stratum (NAS).
  • IP Internet Protocol
  • RRC Radio Resource Control
  • NAS non-access stratum
  • the above-mentioned time window for layer 3 measurement can be understood as a time window for the RRC layer to perform measurement.
  • measurement may also be performed through a physical layer, which is not limited in this embodiment of the present application.
  • the measurement time configuration may include at least one of the following parameters:
  • the starting position of the time window includes a system frame number (System Frame number, SFN) and a time slot (slot) number.
  • SFN System Frame number
  • slot time slot
  • the starting position of the time window may be determined in the following manner:
  • SFN represents the system frame number where the time window is located
  • CELL represents the rounding operation
  • P represents the period of the time window
  • s represents the time slot number where the time window is located
  • O represents the offset of the time window
  • FLOOR represents the rounding down operation.
  • the present application does not limit the period of the time window, the duration of the time window, or the specific value or value range of the offset of the time window.
  • the value range of the period of the time window may be: ⁇ 5, 10, 20, 40 ⁇ or ⁇ 10, 20, 40 ⁇
  • the value range of the duration of the time window may be: ⁇ 1,2,3,4,5 ⁇ ms
  • the value range of the offset of the time window can be: ⁇ 10,20,40 ⁇ ms
  • the sidelink time interval configuration is used to configure a sidelink measurement time interval.
  • the measurement time interval may not only be used to transmit the sidelink discovery signal, but may also be used to transmit other signals, such as data signals and/or reference signals related to the data signals.
  • the remote terminal may measure the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink within the measurement time interval.
  • the measurement time interval is a measurement time window shared by sidelink discovery signals, data signals, or reference signals associated with data signals on the sidelink.
  • the sidelink discovery signal (sidelink discovery) may include public safety related (public safety related, PS related) and non-public safety related (non-PS related) sidelink discovery signal
  • the sidelink discovery signal related to public safety includes Relay related (relay related) and non-relay related (non-relay related) sideline discovery signals.
  • the reference signal associated with the data signal may be a modulation and demodulation signal or other reference signal associated with the data signal, which is not specifically limited in the present application.
  • the sidelink time gap configuration may also be called a sidelink gap configuration (SL-GapConfig) or a sidelink time gap pattern (gap pattern).
  • the measurement time interval may also be called a sidelink interval.
  • the sidelink time interval configuration includes at least one of the following parameters:
  • the period of the time interval, the offset of the time interval, the length of the time interval, and the time slot where the time interval is located is located.
  • the time slot where the time interval is located may be indicated by a gap slot bitmap (gapSlotBitmap).
  • gapSlotBitmap For example, the time slot corresponding to the first value in the interval time slot bitmap belongs to the time slot where the time interval is located, and the time slot corresponding to the second value in the interval time slot bitmap does not belong to the time slot where the time interval is located.
  • time slot Exemplarily, the first value is 1 and the second value is 0; or the first value is 0 and the second value is 1.
  • the sidelink time configuration can be configured through a sidelink gap list (SL gap list).
  • the side row gap list can also be called a side row gap pattern (gap pattern) list, and the side row gap pattern list includes the type of the measurement signal, the frequency position of the measurement and at least one side row gap pattern, the The sidelink time configuration is a sidelink interval pattern in the at least one time configuration.
  • the sidelink time interval configuration may be implemented as the following syntax elements:
  • the SL-GapPattern element is used to configure the side row interval pattern
  • the gapPeriod element is used to configure the period of the time interval
  • the gapOffset is used to configure the offset of the time interval
  • the gapSlotBitmap element is used to configure the time slot of the time interval.
  • the unit of the period of the time interval may be ms.
  • the starting position of the time interval can also be determined based on the period of the time interval and the offset of the time interval in a similar manner to the above-mentioned time window. Not specifically limited.
  • the signal period of the sidewalk discovery signal may be a sending period or a signal receiving period.
  • the start position and duration of the measurement time of the lateral discovery signal may also be predefined.
  • the remote terminal may, based on the predefined start position and duration of the measurement time, The signal period of the line discovery signal is measured on the signal of the first side link.
  • a measurement time window for performing measurement can be obtained, and the measurement time window can not only be used to transmit sidewalk discovery signals, but also can be used to transmit other signals, such as data signals and/or Or a reference signal related to a data signal.
  • the remote terminal may measure the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink within the measurement time window.
  • the measurement time window is a measurement time window shared by sidelink discovery signals, data signals, or reference signals associated with data signals on the sidelink.
  • the sidelink discovery signal (sidelink discovery) may include public safety related (public safety related, PS related) and non-public safety related (non-PS related) sidelink discovery signal
  • the sidelink discovery signal related to public safety includes Relay related (relay related) and non-relay related (non-relay related) sideline discovery signals.
  • the reference signal associated with the data signal may be a modulation and demodulation signal or other reference signal associated with the data signal, which is not specifically limited in the present application.
  • the predefined period may be a period of the measurement time window.
  • the period of the measurement time window is predefined.
  • the start position and duration of the measurement time window may also be predefined.
  • the remote terminal may measure the The signal of the first sidelink is measured.
  • the signal on the first sidelink includes but not limited to a sidelink discovery signal, a data signal, or a reference signal associated with the data signal.
  • the predefined period may be a receiving period or a sending period of a signal on the sidelink.
  • the reception period or transmission period of the signal on the sidelink is predefined.
  • the starting position and duration occupied by the signal on the sidelink may also be predefined.
  • the remote terminal may The duration is to measure the signal of the first sidelink according to a predefined receiving period or a predefined sending period of the signal on the sidelink.
  • the signal on the first sidelink includes but not limited to a sidelink discovery signal, a data signal, or a reference signal associated with the data signal.
  • the "predefined” can be defined by pre-saving corresponding codes, tables, or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices).
  • the present application does not limit the specific implementation manner.
  • the predefined ones may refer to those defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not specifically limited in this application.
  • the present application does not limit the size or value range of the predefined period.
  • the predefined period is 5 ms to perform the relay selection operation and/or the relay reselection operation.
  • the S210 may include:
  • the first time information includes the measurement time configuration
  • at least one of the following is obtained based on the measurement time configuration: sidelink discovery reference signal reception of sidelink discovery signals on the first sidelink Power (sidelink discovery Reference Signal Receiving Power, SD-RSRP), sidelink data (sidelink Reference Signal Receiving Power, SL-RSRP) on the first sidelink link, sidelink reference associated with the sidelink data Signal SL-RSRP.
  • sidelink discovery reference signal reception of sidelink discovery signals on the first sidelink Power sidelink discovery Reference Signal Receiving Power, SD-RSRP
  • sidelink data sidelink Reference Signal Receiving Power, SL-RSRP
  • the measurement time configuration is used to configure the measurement time window of the sidelink link, and if the first time information includes the measurement time configuration, the remote terminal preferentially performs the sidelink link within the measurement time window.
  • the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the link is measured.
  • the remote terminal only obtains at least one of the following based on the measurement time configuration Item: SD-RSRP of sidelink discovery signal on the first sidelink, SL-RSRP of sidelink data on the first sidelink, sidelink reference signal associated with the sidelink data SL-RSRP.
  • the remote terminal may also base on the information other than the measurement time configuration , acquiring at least one of the following: SD-RSRP of the sidelink discovery signal on the first sidelink, SL-RSRP of the sidelink data on the first sidelink, the sidelink SL-RSRP for data-associated sidelink reference signals.
  • the S210 may include:
  • the first time information includes the sidelink time interval configuration
  • at least one of the following is acquired based on the sidelink time interval configuration: sidelink discovery on the first sidelink
  • the SD-RSRP of the signal the SL-RSRP of the sidelink data on the first sidelink
  • the SL-RSRP of the sidelink reference signal associated with the sidelink data is acquired based on the sidelink time interval configuration.
  • the sidelink interval configuration is used to configure the measurement time interval of the sidelink, and if the first time information includes the sidelink interval configuration, the remote terminal can be preferentially configured in the The sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink link is measured within the measurement time interval.
  • the remote terminal only bases on the sidelink interval configuration Obtain at least one of the following: SD-RSRP of the sidelink discovery signal on the first sidelink, SL-RSRP of the sidelink data on the first sidelink, the sidelink data SL-RSRP of the associated sidelink reference signal.
  • the remote terminal may also base on the information other than the sidelink interval configuration.
  • information other than the interval configuration at least one of the following is acquired: SD-RSRP of the sidelink discovery signal on the first sidelink, SL-RSRP of the sidelink data on the first sidelink RSRP, the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the S210 may include:
  • the first time information includes the measurement time configuration and the sidelink time interval configuration
  • the period is larger Configuration, acquiring at least one of the following: SD-RSRP of the sidelink discovery signal on the first sidelink, SL-RSRP of the sidelink data on the first sidelink, the sidelink SL-RSRP of the side row reference signal associated with the row data.
  • the measurement time configuration is used to configure the measurement time window of the sidelink
  • the sidelink interval configuration is used to configure the measurement time interval of the sidelink
  • the remote terminal based on the configuration of the period of the measurement time window and the period of the measurement time interval with a larger period, performs Measurements can be made on the line discovery signal, data signal, or reference signal associated with the data signal.
  • the remote The end terminal acquires at least one of the following only based on the sidelink interval configuration: the SD-RSRP of the sidelink discovery signal on the first sidelink, the sidelink discovery signal on the first sidelink The SL-RSRP of the row data, and the SL-RSRP of the side row reference signal associated with the side row data.
  • the remote terminal may also base on the information other than the sidelink interval configuration. For information other than the interval configuration, at least one of the following is acquired: SD-RSRP of the sidelink discovery signal on the first sidelink, SL-RSRP of the sidelink data on the first sidelink RSRP, the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the remote terminal based on the duration of the measurement time window and the A configuration with a longer duration in the measurement time interval measures the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink link.
  • the S210 may include:
  • the first time information only includes the predefined period, at least one of the following is acquired based on the predefined period: SD-RSRP of the sidelink discovery signal on the first sidelink, the The SL-RSRP of the sidelink data on the first sidelink and the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the remote terminal may refer to the sidelink discovery signal, the data signal, or the data signal association on the sidelink according to the predefined period. signal to measure.
  • the remote terminal preferentially acquires at least one of the following according to other information: the first sidelink The SD-RSRP of the sidelink discovery signal on the first sidelink, the SL-RSRP of the sidelink data on the first sidelink, and the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the S210 may include:
  • the first time information only includes the signal period, acquiring the SD-RSRP of the sidelink discovery signal on the first sidelink based on the signal period.
  • the remote terminal may measure the sidelink discovery signal on the sidelink according to the signal period. Or in other words, if the first time information also includes other information except the signal period, the remote terminal preferentially acquires at least one of the following according to other information: The SD-RSRP of the sidelink discovery signal, the SL-RSRP of the sidelink data on the first sidelink, and the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the S210 may include:
  • the sidelink data on the first sidelink satisfies the first measurement condition, at least one of the following is obtained based on the first time information: the sidelink data on the first sidelink SL-RSRP, the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the remote terminal preferentially acquires at least one of the following based on the first time information: the first sidelink The SL-RSRP of the sidelink data on the link, and the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the S210 may include:
  • the sidelink data on the first sidelink does not satisfy the first measurement condition, acquiring the SD-RSRP of the sidelink discovery signal on the first sidelink based on the first time information.
  • the terminal device cannot obtain the SL-RSRP and the SL-RSRP of the sidelink data on the first sidelink.
  • the remote terminal acquires the SD-RSRP of the sidelink discovery signal on the first sidelink based on the first time information.
  • the first measurement condition includes at least one of the following:
  • the sidelink data on the first sidelink is sent periodically;
  • the communication between the remote terminal and the relay terminal is switched from non-direct communication to direct communication.
  • the synchronization source of the remote terminal is the same as the synchronization source of the relay terminal.
  • the remote terminal may acquire the first measurement result based on the first time information; or in other words, if the The synchronization source of the remote terminal is the same as the synchronization source of the relay terminal, and the remote terminal may refer to a sidelink discovery signal, a data signal, or a data signal association on the sidelink based on the first time information signal to measure.
  • the synchronization source of the remote terminal is different from the synchronization source of the relay terminal.
  • the remote terminal may obtain the first measurement result based on the first time information; or in other words, if the The synchronization source of the remote terminal is different from the synchronization source of the relay terminal, and the remote terminal may associate a sidelink discovery signal, a data signal, or a data signal on the sidelink based on the first time information reference signal for measurement.
  • a time difference between the timing of the remote terminal and the timing of the relay terminal is less than a preset duration.
  • the The remote terminal may obtain the first measurement result based on the first time information; or in other words, the synchronization source of the remote terminal is different from the synchronization source of the relay terminal, and the timing of the remote terminal
  • the remote terminal may associate the sidelink discovery signal, the data signal, or the data signal on the sidelink based on the first time information. Reference signal for measurement.
  • the present application does not limit the value or value range of the preset duration.
  • the preset duration may be one or more cyclic prefixes (Cyclic Prefix, CP).
  • the first measurement result is acquired based on the sidelink time interval configuration, and the start position of the time interval corresponding to the sidelink time interval configuration is based on the timing of the remote terminal and the time difference between the timing of the relay terminal.
  • the sidelink The starting position of the time interval corresponding to the road time interval configuration is determined based on the time difference between the timing of the remote terminal and the timing of the relay terminal.
  • the first time information is used for intra-frequency measurement and/or inter-frequency measurement.
  • the remote terminal can obtain the first measurement result of the first sidelink based on the first time information; or in other words, whether it is the same-frequency measurement or the different-frequency measurement
  • the remote terminal may measure the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink based on the first time information.
  • the sidelink time interval configuration is only used for inter-frequency measurements.
  • the remote terminal can only acquire the first sidelink time interval configuration based on the sidelink time interval configuration.
  • different frequency points may correspond to different configurations of the measurement time, the configuration of the time interval of the sidelink, the signal period of the sidelink discovery signal, or the predefined period.
  • the same frequency point may correspond to multiple configurations of the measurement time, the configuration of the time interval of the sidelink, the signal period of the sidelink discovery signal, or the predefined period.
  • the remote terminal may base on the larger period of the multiple measurement time configurations configuration, and measure the sidelink discovery signal, the data signal, or the reference signal associated with the data signal on the sidelink link, and then acquire the first measurement result.
  • the method 200 may also include:
  • the measurement time configuration the sidelink time interval configuration, the signal period, the type of the measurement signal, and the frequency position information of the measurement.
  • the first configuration information can not only be used to configure configuration information in the first time information, for example, the measurement time configuration, the sidelink time interval configuration, and the signal period, but also include other Configuration information related to the measurement, such as the type of the measurement signal, and the frequency and location information of the measurement.
  • the configuration of the measurement time, the configuration of the time interval of the side link or the period of the signal can be configured by a network device, and the network device can flexibly adjust the configuration of the measurement time, the configuration of the side link Uplink time interval configuration or the signal period.
  • the first configuration information is information configured for each terminal device or each frequency band.
  • the first configuration information may be configured for each terminal device or each frequency band.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in this application.
  • the implementation of the examples constitutes no limitation.
  • the term "and/or" is only an association relationship describing associated objects, indicating that there may be three relationships. Specifically, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone.
  • the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
  • the wireless communication method according to the embodiment of the present application has been described in detail from the perspective of the remote terminal in conjunction with FIG. 2 above.
  • the wireless communication method according to the embodiment of the present application will be described below from the perspective of a network device in conjunction with FIG. 3 .
  • FIG. 2 shows a schematic flowchart of a wireless communication party 300 according to an embodiment of the present application.
  • the method 300 can be executed by a network device.
  • the method 200 may include:
  • S310. Send first configuration information, where the first configuration information includes at least one of the following:
  • Measurement time configuration sidelink time interval configuration, signal period, type of measurement signal, frequency location information for measurement.
  • the measurement time configuration includes at least one of the following parameters:
  • the sidelink time interval configuration includes at least one of the following parameters:
  • the period of the time interval, the offset of the time interval, the length of the time interval, and the time slot where the time interval is located is located.
  • the first configuration information is information configured for each terminal device or each frequency band.
  • FIG. 4 is a schematic block diagram of a remote terminal 400 according to an embodiment of the present application.
  • the remote terminal 400 may include:
  • the measuring unit 410 is configured to acquire a first measurement result of the first sidelink based on first time information; the first time information is used to determine a measurement time for measuring the first sidelink, and the first The time information includes at least one of a measurement time configuration, a sidelink time interval configuration, a signal period of a sidelink discovery signal, and a predefined period;
  • the processing unit 420 is configured to select and/or reselect a relay terminal based on the first measurement result.
  • the measurement unit 410 can be specifically used for:
  • the first time information includes the measurement time configuration
  • at least one of the following is obtained based on the measurement time configuration: sidelink discovery reference signal reception of sidelink discovery signals on the first sidelink
  • the measurement unit 410 can be specifically used for:
  • the first time information includes the sidelink time interval configuration
  • at least one of the following is acquired based on the sidelink time interval configuration: sidelink discovery on the first sidelink
  • the SD-RSRP of the signal the SL-RSRP of the sidelink data on the first sidelink
  • the SL-RSRP of the sidelink reference signal associated with the sidelink data is acquired based on the sidelink time interval configuration.
  • the measurement unit 410 can be specifically used for:
  • the first time information includes the measurement time configuration and the sidelink time interval configuration
  • the period is larger Configuration, acquiring at least one of the following: SD-RSRP of the sidelink discovery signal on the first sidelink, SL-RSRP of the sidelink data on the first sidelink, the sidelink SL-RSRP of the side row reference signal associated with the row data.
  • the measurement unit 410 can be specifically used for:
  • the first time information only includes the predefined period, at least one of the following is acquired based on the predefined period: SD-RSRP of the sidelink discovery signal on the first sidelink, the The SL-RSRP of the sidelink data on the first sidelink and the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the measurement unit 410 can be specifically used for:
  • the first time information only includes the signal period, acquiring the SD-RSRP of the sidelink discovery signal on the first sidelink based on the signal period.
  • the measurement unit 410 can be specifically used for:
  • the sidelink data on the first sidelink satisfies the first measurement condition, at least one of the following is obtained based on the first time information: the sidelink data on the first sidelink SL-RSRP, the SL-RSRP of the sidelink reference signal associated with the sidelink data.
  • the measurement unit 410 can be specifically used for:
  • the sidelink data on the first sidelink does not satisfy the first measurement condition, acquiring the SD-RSRP of the sidelink discovery signal on the first sidelink based on the first time information.
  • the first measurement condition includes at least one of the following:
  • the sidelink data on the first sidelink is sent periodically;
  • the communication between the remote terminal and the relay terminal is switched from non-direct communication to direct communication.
  • the synchronization source of the remote terminal is the same as the synchronization source of the relay terminal.
  • the synchronization source of the remote terminal is different from the synchronization source of the relay terminal.
  • a time difference between the timing of the remote terminal and the timing of the relay terminal is less than a preset duration.
  • the first measurement result is acquired based on the sidelink time interval configuration, and the start position of the time interval corresponding to the sidelink time interval configuration is based on the timing of the remote terminal and the time difference between the timing of the relay terminal.
  • the first time information is used for intra-frequency measurement and/or inter-frequency measurement.
  • the sidelink time interval configuration is only used for inter-frequency measurements.
  • the measurement unit 410 can also be used for:
  • the measurement time configuration the sidelink time interval configuration, the signal period, the type of the measurement signal, and the frequency position information of the measurement.
  • the measurement time configuration includes at least one of the following parameters:
  • the sidelink time interval configuration includes at least one of the following parameters:
  • the period of the time interval, the offset of the time interval, the length of the time interval, and the time slot where the time interval is located is located.
  • the first configuration information is information configured for each terminal device or each frequency band.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the remote terminal 400 shown in FIG. 9 may correspond to the corresponding subject in executing the method 200 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the remote terminal 400 are for realizing the For the sake of brevity, the corresponding processes in each method in 1 will not be repeated here.
  • Fig. 5 is a schematic block diagram of a network device 500 according to an embodiment of the present application.
  • the network device 500 may include:
  • a sending unit 510 configured to send first configuration information, where the first configuration information includes at least one of the following:
  • Measurement time configuration sidelink time interval configuration, signal period, type of measurement signal, frequency location information for measurement.
  • the measurement time configuration includes at least one of the following parameters:
  • the sidelink time interval configuration includes at least one of the following parameters:
  • the period of the time interval, the offset of the time interval, the length of the time interval, and the time slot where the time interval is located is located.
  • the first configuration information is information configured for each terminal device or each frequency band.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the network device 500 shown in FIG. 9 may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the aforementioned and other operations and/or functions of each unit in the network device 500 are respectively in order to realize the For the sake of brevity, the corresponding processes in each method are not repeated here.
  • the functional modules may be implemented in the form of hardware, may also be implemented by instructions in the form of software, and may also be implemented by a combination of hardware and software modules.
  • each step of the method embodiment in the embodiment of the present application can be completed by an integrated logic circuit of the hardware in the processor and/or instructions in the form of software, and the steps of the method disclosed in the embodiment of the present application can be directly embodied as hardware
  • the decoding processor is executed, or the combination of hardware and software modules in the decoding processor is used to complete the execution.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.
  • the measurement unit 410 and the sending unit 510 mentioned above may be implemented by a transceiver, and the processing unit 420 may be implemented by a processor.
  • Fig. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 may include a processor 610 .
  • processor 610 may invoke and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the memory 620 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 610 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630 .
  • the processor 610 can control the transceiver 630 to communicate with other devices, specifically, can send information or data to other devices, or receive information or data sent by other devices.
  • Transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • the communication device 600 may be the remote terminal in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the remote terminal in the methods of the embodiment of the present application, that is, the implementation of the present application
  • the communication device 600 in this example may correspond to the remote terminal 400 in the embodiment of the present application, and may correspond to a corresponding subject in performing the method 200 according to the embodiment of the present application. For the sake of brevity, details are not repeated here.
  • the communication device 600 may be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application.
  • the communication device 600 in the embodiment of the present application may correspond to the network device 500 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 300 according to the embodiment of the present application.
  • the communication device 600 in the embodiment of the present application may correspond to the network device 500 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 300 according to the embodiment of the present application.
  • no further repeat may be provided.
  • a chip is also provided in the embodiment of the present application.
  • the chip may be an integrated circuit chip, which has signal processing capabilities, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the chip can also be called system-on-chip, system-on-chip, system-on-chip or system-on-chip, etc.
  • the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • FIG. 7 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
  • the chip 700 includes a processor 710 .
  • the processor 710 can invoke and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 710 .
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may further include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip 700 can be applied to the network device in the embodiment of the present application, and the chip can realize the corresponding process implemented by the network device in the various methods of the embodiment of the present application, and can also realize the various methods of the embodiment of the present application For the sake of brevity, the corresponding process implemented by the remote terminal is not repeated here.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • Processors mentioned above may include, but are not limited to:
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the processor may be used to implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the storage mentioned above includes but is not limited to:
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium stores one or more programs, and the one or more programs include instructions that, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to perform the method 200 or 300.
  • the method of the example embodiment can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application. For brevity, here No longer.
  • the computer-readable storage medium can be applied to the remote terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the remote terminal in each method of the embodiment of the present application.
  • the computer program enables the computer to execute the corresponding process implemented by the remote terminal in each method of the embodiment of the present application.
  • the embodiment of the present application also provides a computer program product, including a computer program.
  • the computer program product can be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the repeat the computer program product can be applied to the remote terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the remote terminal in each method of the embodiment of the present application.
  • the computer program product can be applied to the remote terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the remote terminal in each method of the embodiment of the present application.
  • the sake of brevity here No longer.
  • the embodiment of the present application also provides a computer program.
  • the computer program When the computer program is executed by the computer, the computer can execute the method in the embodiment shown in method 200 or 300 .
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program When the computer program is run on the computer, the computer executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the remote terminal in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the remote terminal in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.
  • the embodiment of the present application also provides a communication system.
  • the communication system may include the above-mentioned remote terminal and relay terminal to form the communication system 100 shown in FIG. 1 , which will not be repeated here for brevity.
  • system and the like in this document may also be referred to as “network management architecture” or “network system”.
  • the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.
  • the units/modules/components described above as separate/display components may or may not be physically separated, that is, they may be located in one place, or may also be distributed to multiple network units. Part or all of the units/modules/components can be selected according to actual needs to achieve the purpose of the embodiments of the present application.
  • the mutual coupling or direct coupling or communication connection shown or discussed above may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

Des modes de réalisation de la présente demande concernent un procédé de communication sans fil, un terminal distant et un dispositif de réseau. Le procédé consiste à : obtenir un premier résultat de mesure d'une première liaison latérale sur la base de premières informations temporelles, les premières informations temporelles étant utilisées pour déterminer un temps de mesure de la mesure de la première liaison latérale, et les premières informations temporelles comprenant une configuration temporelle de mesure, et/ou une configuration d'intervalle de temps de liaison latérale, et/ou un cycle de signal d'un signal de découverte de liaison latérale, et/ou un cycle prédéfini ; et sélectionner et/ou resélectionner un terminal de relais sur la base du premier résultat de mesure. Le procédé fourni par la présente demande peut mettre en œuvre l'opération de sélection de relais et/ou l'opération de resélection de relais du terminal distant, et peut également améliorer la précision de l'opération de sélection de relais et/ou de l'opération de resélection de relais.
PCT/CN2021/123557 2021-10-13 2021-10-13 Procédé de communication sans fil, terminal distant et dispositif de réseau WO2023060477A1 (fr)

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CN202180100449.3A CN117716723A (zh) 2021-10-13 2021-10-13 无线通信方法、远端终端和网络设备
PCT/CN2021/123557 WO2023060477A1 (fr) 2021-10-13 2021-10-13 Procédé de communication sans fil, terminal distant et dispositif de réseau

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Citations (4)

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US20150334757A1 (en) * 2012-12-30 2015-11-19 Lg Electronics Inc. Apparatus and method for performing device-to-device communication in wireless communication system
US20180139682A1 (en) * 2015-05-15 2018-05-17 Huawei Technologies Co., Ltd. Method and apparatus for selecting relay in device-to-device communication
US20180206140A1 (en) * 2015-08-11 2018-07-19 Intel Corporation Measurement for device-to-device (d2d) communication
WO2020164071A1 (fr) * 2019-02-14 2020-08-20 Zte Corporation Mesures de liaison pour liaisons de véhicule de dispositif à dispositif

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Publication number Priority date Publication date Assignee Title
US20150334757A1 (en) * 2012-12-30 2015-11-19 Lg Electronics Inc. Apparatus and method for performing device-to-device communication in wireless communication system
US20180139682A1 (en) * 2015-05-15 2018-05-17 Huawei Technologies Co., Ltd. Method and apparatus for selecting relay in device-to-device communication
US20180206140A1 (en) * 2015-08-11 2018-07-19 Intel Corporation Measurement for device-to-device (d2d) communication
WO2020164071A1 (fr) * 2019-02-14 2020-08-20 Zte Corporation Mesures de liaison pour liaisons de véhicule de dispositif à dispositif

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