CN117716723A - Wireless communication method, remote terminal and network equipment - Google Patents

Abstract

The embodiment of the application provides a wireless communication method, a remote terminal and network equipment, wherein the method comprises the following steps: acquiring a first measurement result of the first side uplink based on the first time information; the first time information is used for determining a measurement time for measuring the first side link, and comprises at least one of measurement time configuration, side link time interval configuration, signal period of a side link discovery signal and a predefined period; and selecting and/or reselecting the relay terminal based on the first measurement result. The method provided by the application not only can realize the relay selection operation and/or the relay reselection operation of the remote terminal, but also can improve the accuracy of the relay selection operation and/or the relay reselection operation.

Description

Wireless communication method, remote terminal and network equipment Technical Field

Embodiments of the present application relate to the field of communications, and more particularly, to a wireless communication method, a remote terminal, and a network device.

Background

End-to-end communication refers to terminal-to-terminal communication. For example, vehicle-to-vehicle (Vehicle to Vehicle, V2V), vehicle-to-other Device (Vehicle to Everything, V2X), or terminal-to-terminal (D2D), etc. Specifically, the transmitting end transmits 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 transmitting end can directly perform end-to-end communication. If the sending end does not receive the response message sent by the receiving end and aiming at the DCR, the sending end determines that the receiving end is not in the direct communication range, and at the moment, the relay terminal can ensure that the communication end-to-end communication between the sending end and the receiving end can be realized. Specifically, the transmitting end selects and/or reselects the relay terminal through the discovered sidestream discovery signal (SL discovery), and performs sidestream communication with the receiving end through the selected and/or reselected relay terminal.

However, there is no channel dedicated to carrying the SL discovery signal so far, and therefore, how to implement measurement of the SL discovery signal, and thus, to implement selection and/or reselection of the relay terminal based on the discovered SL discovery signal is a technical problem to be solved in the art.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a remote terminal and network equipment, which not only can realize relay selection operation and/or relay reselection operation of the remote terminal, but also can improve the accuracy of the relay selection operation and/or the relay reselection operation.

In a first aspect, the present application provides a wireless communication method, applicable to a remote terminal, the method including:

acquiring a first measurement result of the first side uplink based on the first time information; the first time information is used for determining a measurement time for measuring the first side link, and comprises at least one of measurement time configuration, side link time interval configuration, signal period of a side link discovery signal and a predefined period;

and selecting and/or reselecting the relay terminal based on the first measurement result.

In a second aspect, the present application provides a wireless communication method, applicable to a network device, the method comprising:

Transmitting first configuration information, wherein the first configuration information comprises at least one of the following:

measurement time configuration, side-uplink time interval configuration, signal period, type of measurement signal, frequency location information of measurement.

In a third aspect, the present application provides a remote terminal for performing the method of the first aspect or its implementation manners. In particular, the remote terminal comprises functional modules for performing the method of the first aspect or implementations thereof.

In one implementation, the remote terminal may include a processing unit for performing functions related to information processing. For example, the processing unit may be a processor.

In one implementation, the remote terminal may include a transmitting unit and/or a receiving unit. The transmitting unit is configured to perform a function related to transmission, and the receiving unit is configured to perform a function related to reception. For example, the transmitting unit may be a transmitter or a transmitter and the receiving unit may be a receiver or a receiver. For another example, the remote terminal is a communication chip, the sending unit may be an input circuit or an interface of the communication chip, and the sending unit may be an output circuit or an interface of the communication chip.

In a fourth aspect, the present application provides a network device for performing the method of the second aspect or each implementation manner thereof. In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In one implementation, the network device may include a processing unit to perform functions related to information processing. For example, the processing unit may be a processor.

In one implementation, the network device may include a transmitting unit and/or a receiving unit. The transmitting unit is configured to perform a function related to transmission, and the receiving unit is configured to perform a function related to reception. For example, the transmitting unit may be a transmitter or a transmitter and the receiving unit may be a receiver or a receiver. For another example, the network device is a communication chip, the receiving unit may be an input circuit or an interface of the communication chip, and the transmitting unit may be an output circuit or an interface of the communication chip.

In a fifth aspect, the present application provides a remote terminal comprising a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, so as to perform the method in the first aspect or each implementation manner thereof.

In one implementation, the processor is one or more and the memory is one or more.

In one implementation, the memory may be integrated with the processor or separate from the processor.

In one implementation, the remote terminal further includes a transmitter (transmitter) and a receiver (receiver).

In a sixth aspect, the present application provides a network device comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the second aspect or various implementation manners thereof.

In one implementation, the processor is one or more and the memory is one or more.

In one implementation, the memory may be integrated with the processor or separate from the processor.

In one implementation, the network device further includes a transmitter (transmitter) and a receiver (receiver).

In a seventh aspect, the present application provides a chip for implementing the method in any one of the first aspect to the second aspect or each implementation thereof. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of the above first to second aspects or implementations thereof.

In a ninth aspect, the present application provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a tenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-described first to second aspects or implementations thereof.

Based on the above technical solution, by introducing the first time information to assist the remote terminal to determine the measurement time of the first side uplink, equivalently, measurement can be performed based on the first time information and a first measurement result of the first side uplink is obtained, so that the remote terminal can be assisted to realize relay selection operation and/or relay reselection operation through the first measurement result; in addition, in order to meet the accuracy requirement of measurement of the signal on the side link, the periodicity of the signal on the side link needs to be guaranteed, and based on this, the present application designs the first time information to include at least one of measurement time configuration, side link time interval configuration, signal period of the side link discovery signal and predefined period, which is favorable for the far-end terminal to acquire the first measurement result in the measurement time meeting the measurement accuracy requirement, so that the accuracy of the relay selection operation and/or the relay reselection operation can be improved.

Drawings

Fig. 1 is an example of an applicable scenario of an embodiment of the present application.

Fig. 2 is a schematic flow chart of a wireless communication method provided in an embodiment of the present application.

Fig. 3 is another schematic flow chart of a wireless communication method provided in an embodiment of the present application.

Fig. 4 is a schematic block diagram of a remote terminal provided in an embodiment of the present application.

Fig. 5 is a schematic block diagram of a network device provided in an embodiment of the present application.

Fig. 6 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 7 is a schematic block diagram of a chip provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is an example of a system framework 100 provided by an embodiment of the present application.

As shown in fig. 1, the system frame 100 may include a first remote terminal 110, a first relay terminal 120, and a second remote terminal 130, where The first remote terminal 110 may communicate with The second remote terminal 130 through The first relay terminal 120, and The first remote terminal 110, the first relay terminal 120, and The second remote terminal 130 all support a third generation partnership project (New Radio, NR) PC5 interface protocol.

As an example, 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 a network when there is network coverage. The first Remote terminal 110 and the second Remote terminal may be terminal devices authenticated as accessible to a wireless network through a relay terminal, in other words, the first Remote terminal 110 and the second Remote terminal are authorized to function as Remote user equipment (Remote UE). The first relay terminal 120 may be a terminal device authenticated to be operable as a relay node. The first remote terminal 110, the first relay terminal 120, and the second remote terminal 130 may be authorized to transmit and receive relay discovery-related messages, which may include discovery messages and discovery request messages.

The terminal device in the embodiment of the present invention may be any device or apparatus configured with a physical layer and a media access control layer, and the terminal device may also be referred to as an access terminal. Such as a User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device having wireless communication capabilities, a computing device or other linear processing device connected to a wireless modem, an in-vehicle device, a wearable device, or the like. The embodiment of the present invention is described by taking an in-vehicle terminal as an example, but is not limited thereto.

It should be understood that fig. 1 is only an example of the present application and should not be construed as limiting the present application.

For example, the system frame 100 may be a system frame in which any terminal is connected to another terminal through a relay terminal. For example, the framework 100 may be a system framework in which the in-vehicle terminal is connected to the in-vehicle terminal through a relay terminal. For example, the remote vehicle is through a relay vehicle to the remote vehicle, the remote vehicle is through a relay device to other devices, the remote terminal is through a relay terminal to the remote terminal, and so on.

Fig. 2 shows a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, the method 200 may be performed by a remote terminal, and the method 200 may also be performed by a transmitting end. The remote device shown in fig. 2 may be a first remote device 110 as shown in fig. 1.

As shown in fig. 2, the method 200 may include some or all of the following:

s210, acquiring a first measurement result of a first side link based on first time information; the first time information is used for determining a measurement time for measuring the first side link, and comprises at least one of measurement time configuration, side link time interval configuration, signal period of a side link discovery signal and a predefined period;

And S220, selecting and/or reselecting the relay terminal based on the first measurement result.

In this embodiment, by introducing the first time information to assist the remote terminal in determining the measurement time of the first side uplink, equivalently, measurement may be performed based on the first time information and a first measurement result of the first side uplink may be obtained, so that the remote terminal may be assisted to implement a relay selection operation and/or a relay reselection operation through the first measurement result; in addition, in order to meet the accuracy requirement of measurement of the signal on the side link, the periodicity of the signal on the side link needs to be guaranteed, and based on this, the present application designs the first time information to include at least one of measurement time configuration, side link time interval configuration, signal period of the side link discovery signal and predefined period, which is favorable for the far-end terminal to acquire the first measurement result in the measurement time meeting the measurement accuracy requirement, so that the accuracy of the relay selection operation and/or the relay reselection operation can be improved.

It should be noted that, in the embodiment of the present application, the first time information is intended to be used to assist the remote terminal in determining the measurement time of the first side link, and the specific implementation form of the present application is not limited. For example, the first time information may be configuration information or predefined information. For example, the measurement time configuration, the sidelink time interval configuration, the signal period of the sidelink discovery signal may be information of a network device configuration. Of course, the measurement time of the first side uplink may be a time period, a time window, or a measurement interval, which is not specifically limited in this application.

Furthermore, the present application does not limit the criteria for selecting and/or reselecting the relay terminal based on the first measurement result. For example, the relay selection criterion or relay reselection criterion in LTE may be referred to, and for example, the relay terminal may be selected and/or reselected based on the measurement result of 4 times, thereby achieving the expected accuracy requirement.

It should also be noted that since the sidelink discovery signal is typically transmitted with the data signal in the communication channel (communication channel), i.e., there is no channel dedicated to carrying the sidelink discovery signal; based on the above, when the relay selection and/or reselection of the side link is performed, the measurable signal is expanded from the side line discovery signal to the side line discovery signal, the data signal and the reference signal related to the data signal on the side line, so as to ensure that the measurement result can be obtained in various scenes.

Optionally, the measurement time configuration is used to configure a measurement time window of the side uplink.

It should be noted that the measurement time window may be used not only for transmitting the side row discovery signal, but also for transmitting other signals, such as a data signal and/or a reference signal related to the data signal.

In other words, the remote terminal may measure the sidelink discovery signal, the data signal, or a reference signal associated with the data signal on the sidelink within the measurement time window. In other words, the measurement time window is a measurement time window shared by sidelink discovery signals, data signals, or reference signals associated with data signals on a sidelink link. Wherein the side line discovery signals (sidelink discovery) may include public safety related (public safety related, PS related) and non-public safety related (non-PS related) side line discovery signals, including relay related (relay related) and non-relay related (non-relay related) side line discovery signals. In addition, the reference signal associated with the data signal may be a modem signal or other reference signal associated with the data signal, which is not specifically limited in this application.

Of course, in other alternative embodiments, the measurement time window may also be a time window defined for the sideline discovery signal, in which case the measurement time configuration may be referred to as a measurement time configuration (measurement time configuration, MTC) for the sideline discovery signal. Alternatively, the measurement time configuration may also be referred to as a sidelink discovery signal measurement time configuration (sidelink discovery measurement time configuration, SD-MTC) or a discovery signal measurement time configuration (discovery measurement timing configuration, DMTC).

Alternatively, the measurement time configuration may be interacted between network devices or between a CU and a DU.

The measurement time configuration may be interacted between network devices or between a CU and a DU via an X2/Xn interface or F1 messages, for example.

Alternatively, the measurement time configuration may be configured by radio resource control (Radio Resource Control, RRC) signaling.

In other words, the time window configured by the measurement time configuration may be a time window of layer 3 measurements. Specifically, for the RRC connected state, the RRC idle state, or the RRC deactivated state, the measurement time configuration may be configured for the remote terminal, and used for measuring the sidelink discovery signal on the sidelink link during the relay selection and/or the relay reselection.

Wherein layer 3 is used to communicate control messages. For example, layer 3 includes, but is not limited to, the internet protocol (Internet Protocol, IP) layer and the radio resource control (Radio Resource Control, RRC) layer, as well as the non-access stratum (NAS). For example, the above-described time window for layer 3 measurement may be understood as a time window for RRC layer to perform measurement.

Of course, in other alternative embodiments, the measurement may also be performed by the physical layer, which is not limited by the embodiments of the present application.

Optionally, the measurement time configuration may include at least one of the following parameters:

a period of a time window, a duration of the time window, a bias of the time window; wherein the starting position of the time window is determined by the period of the time window and the bias of the time window.

Optionally, the starting position of the time window includes a system frame number (System Frame number, SFN) and a slot number (slot).

Illustratively, the starting position of the time window may be determined by:

SFN mod T＝(FLOOR(O/10))，T＝CEIL(P/10)；

if the period of the time window is greater than a certain threshold, s=o mod 10;

otherwise, s=o or (o+5).

Wherein SFN represents a system frame number where the time window is located, CELL represents a rounding operation, P represents a period of the time window, s represents a time slot number where the time window is located, O represents a bias of the time window, and FLOOR represents a downward rounding operation.

It should be noted that, the period of the time window, the duration of the time window, and the specific value or the value range of the bias of the time window are not limited in the present application. As one possible example, the range of values of the period of the time window may be: {5,10,20,40} or {10,20,40}, the range of values of the duration of the time window may be: {1,2,3,4,5} ms, the range of values of the bias of the time window may be: {10,20,40} ms, of course, the above values are merely examples of the present application and should not be construed as limiting the present application.

Optionally, the side-link time interval is configured to configure a measurement time interval of the side-link.

It should be noted that the measurement time interval may be used not only for transmitting the sidelink discovery signal, but also for transmitting other signals, such as a data signal and/or a reference signal related to the data signal.

In other words, the remote terminal may measure the sidelink discovery signal, the data signal, or a reference signal associated with the data signal on the sidelink link within the measurement time interval. In other words, the measurement time interval is a measurement time window shared by sidelink discovery signals, data signals, or reference signals associated with data signals on a sidelink link. Wherein the side line discovery signals (sidelink discovery) may include public safety related (public safety related, PS related) and non-public safety related (non-PS related) side line discovery signals, including relay related (relay related) and non-relay related (non-relay related) side line discovery signals. In addition, the reference signal associated with the data signal may be a modem signal or other reference signal associated with the data signal, which is not specifically limited in this application.

Alternatively, the side-downlink time interval configuration (SL time gap configuration) may also be referred to as a side-downlink time interval configuration (SL-GapConfig) or a side-downlink time interval pattern (gap pattern).

Alternatively, the measurement time interval may also be referred to as a side-uplink interval.

Optionally, the side-uplink time interval configuration includes at least one of the following parameters:

the period of the time interval, the bias of the time interval, the length of the time interval and the time slot where the time interval is located.

Illustratively, the time slot in which the time interval is located may be indicated by an interval time slot bit map (gapsetbmap). For example, the time slot corresponding to the first value in the interval time slot bit map belongs to the time slot in which the time interval is located, and the time slot corresponding to the second value in the interval time slot bit map does not belong to the time slot in which the time interval is located. Illustratively, the first value is 1 and the second value is 0; or the first value is 0 and the second value is 1.

Alternatively, the sidelink time configuration may be configured by a sidelink interval list (SL gap list). In particular, the side row interval list may also be referred to as a side row interval pattern (gap pattern) list comprising the type of measurement signal, the measured frequency position and at least one side row interval pattern, the side-link time being configured as one of the at least one time configuration.

Illustratively, the side-uplink time interval configuration may be implemented as the following syntax elements:

the SL-GapPattern element is used for configuring a side line interval pattern, the gapPeriod element is used for configuring the period of the time interval, the gapOffset is used for configuring the offset of the time interval, and the gapplotButmap element is used for configuring the time slot where the time interval is located. Alternatively, the unit of the period of the time interval may be ms.

Of course, in other alternative embodiments, the starting position of the time interval may also be determined according to a similar method to the above-mentioned time window, based on the period of the time interval and the offset of the time interval, which is not specifically limited in this application.

Alternatively, the signal period of the sidelink discovery signal may be a transmission period or a signal reception period.

For example, the starting position and duration of the measurement time of the sidelink discovery signal may be predefined, and the remote terminal may measure the signal of the first sidelink according to the signal period of the sidelink discovery signal based on the predefined starting position and duration of the measurement time.

It should be noted that, based on the predefined period, a measurement time window for performing the measurement may be obtained, where the measurement time window may be used not only for transmitting the sidelink discovery signal but also for transmitting other signals, such as the data signal and/or a reference signal related to the data signal.

In other words, the remote terminal may measure the sidelink discovery signal, the data signal, or a reference signal associated with the data signal on the sidelink within the measurement time window. In other words, the measurement time window is a measurement time window shared by sidelink discovery signals, data signals, or reference signals associated with data signals on a sidelink link. Wherein the side line discovery signals (sidelink discovery) may include public safety related (public safety related, PS related) and non-public safety related (non-PS related) side line discovery signals, including relay related (relay related) and non-relay related (non-relay related) side line discovery signals. In addition, the reference signal associated with the data signal may be a modem signal or other reference signal associated with the data signal, which is not specifically limited in this application.

Alternatively, the predefined period may be a period of a measurement time window.

In other words, the period of the measurement time window is predefined.

The starting position and the duration of the measurement time window may also be predefined, in which case the remote terminal may measure the signal of the first side-link according to a predefined period based on the starting position and the duration of the predefined measurement time window. The signals on the first sidelink include, but are not limited to, sidelink discovery signals, data signals, or reference signals associated with data signals.

Alternatively, the predefined period may be a reception period or a transmission period of a signal on the side link.

In other words, the reception period or the transmission period of the signal on the side link is predefined.

For example, the starting position and duration of the signal occupation on the side link may also be predefined, at which time the remote terminal may measure the signal of the first side link according to a predefined receiving period or a predefined transmitting period of the signal on the side link based on the starting position and duration of the signal occupation on the side link. The signals on the first sidelink include, but are not limited to, sidelink discovery signals, data signals, or reference signals associated with data signals.

It should be noted that, in the embodiment of the present application, the "predefining" may be implemented by pre-storing, in a device (including, for example, a terminal device and a network device), a corresponding code, a table, or other manners that may be used to indicate relevant information, and the specific implementation manner is not limited in this application. For example, predefined may refer to what is defined in the protocol. Alternatively, the "protocol" may refer to a standard protocol in the communication field, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not specifically limited in this application.

In addition, the size or the value range of the predefined period is not limited in the application. Illustratively, the predefined period is 5ms to perform a relay selection operation and/or a relay reselection operation.

In some embodiments, the S210 may include:

if the first time information includes the measurement time configuration, at least one of the following is acquired based on the measurement time configuration: a sidelink discovery reference signal received power (sidelink discovery Reference Signal Receiving Power, SD-RSRP) of a sidelink discovery signal on the first sidelink, a sidelink data (sidelink Reference Signal Receiving Power, SL-RSRP) on the first sidelink, and a SL-RSRP of a sidelink reference signal associated with the sidelink data.

In other words, the measurement time configuration is used to configure a measurement time window of the sidelink, and if the first time information includes the measurement time configuration, the remote terminal preferentially performs measurement on a sidelink discovery signal, a data signal or a reference signal associated with the data signal on the sidelink within the measurement time window.

Illustratively, if the first time information includes the measurement time configuration, the remote terminal obtains at least one of the following based only on the measurement time configuration, regardless of whether the first time information also includes other information: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

Of course, in other alternative embodiments, if the first time information includes information other than the measurement time configuration, the remote terminal may also acquire at least one of the following based on the information other than the measurement time configuration: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the S210 may include:

if the first time information includes the side-uplink time interval configuration, at least one of the following is acquired based on the side-uplink time interval configuration: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In other words, the sidelink interval configuration is used to configure a measurement time interval of the sidelink, and if the first time information includes the sidelink interval configuration, the remote terminal may preferentially measure a sidelink discovery signal, a data signal, or a reference signal associated with the data signal on the sidelink within the measurement time interval.

Illustratively, if the first time information includes the side-uplink interval configuration, the remote terminal obtains at least one of the following based solely on the side-uplink interval configuration, regardless of whether the first time information also includes other information: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

Of course, in other alternative embodiments, if the first time information includes information other than the side-uplink interval configuration, the remote terminal may also acquire at least one of the following based on the information other than the side-uplink interval configuration: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the S210 may include:

if the first time information includes the measurement time configuration and the side uplink time interval configuration, based on a configuration in which a period is greater among a period of the measurement time configuration and a period of the side uplink time interval configuration, at least one of: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In other words, the measurement time configuration is used for configuring a measurement time window of a side link, the side link interval configuration is used for configuring a measurement time interval of the side link, and if the first time information includes the measurement time configuration and the side link interval configuration, the remote terminal measures a side-row discovery signal, a data signal or a reference signal associated with the data signal on the side link based on a configuration with a larger period of the measurement time window and the measurement time interval.

Illustratively, if the first time information comprises the measurement time configuration and the side-uplink time interval configuration, the remote terminal obtains at least one of the following based solely on the side-uplink time interval configuration, regardless of whether the first time information also comprises other information, such as a predefined period: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

Of course, in some alternative embodiments, if the first time information includes information other than the side-uplink interval configuration, the remote terminal may also acquire at least one of the following based on the information other than the side-uplink interval configuration: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data. In yet other alternative embodiments, if the first time information includes the measurement time configuration and the sidelink time interval configuration, the remote terminal measures a sidelink discovery signal, a data signal, or a reference signal associated with a data signal on a sidelink based on a configuration having a greater duration of the measurement time window and the measurement time interval.

In some embodiments, the S210 may include:

if the first time information includes only the predefined period, at least one of the following is acquired based on the predefined period: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In other words, if the first time information includes only the predefined period, the remote terminal may measure a sidelink discovery signal, a data signal, or a reference signal associated with a data signal on a sidelink according to the predefined period. Or, if the first time information further includes other information than the predefined period, the remote terminal preferentially obtains at least one of the following according to the other information: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the S210 may include:

and if the first time information only comprises the signal period, acquiring the SD-RSRP of the sidestream discovery signal on the first sidestream link based on the signal period.

In other words, if the first time information includes only the signal period, the remote terminal may measure the sidelink discovery signal on the sidelink link according to the signal period. Or, if the first time information further includes other information than the signal period, the remote terminal preferentially obtains at least one of the following according to the other information: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the S210 may include:

if the sidestream data on the first sidestream link meets a first measurement condition, acquiring at least one of the following based on the first time information: the SL-RSRP of the sidestream data on the first sidestream link, the SL-RSRP of the sidestream reference signal associated with the sidestream data.

In other words, if the sidestream data on the first sidestream link satisfies a first measurement condition, the remote terminal preferentially obtains at least one of the following based on the first time information: the SL-RSRP of the sidestream data on the first sidestream link, the SL-RSRP of the sidestream reference signal associated with the sidestream data.

In some embodiments, the S210 may include:

and if the sidestream data on the first sidestream link does not meet a first measurement condition, acquiring the SD-RSRP of the sidestream discovery signal on the first sidestream link based on the first time information.

In other words, if the sidelink data on the first sidelink does not meet the first measurement condition, that is, the terminal device cannot obtain 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 obtains the SD-RSRP of the sidelink discovery signal on the first sidelink based on the first time information.

In some embodiments, the first measurement condition includes at least one of:

sidestream data on the first sidestream link is periodically transmitted;

and the communication between the remote terminal and the relay terminal is switched from non-direct communication to direct communication.

In some embodiments, the synchronization source of the remote terminal and the synchronization source of the relay terminal are the same.

In other words, if the synchronization source of the remote terminal and the synchronization source of the relay terminal are the same, the remote terminal may acquire the first measurement result based on the first time information; alternatively, if the synchronization source of the remote terminal and the synchronization source of the relay terminal are the same, the remote terminal may measure a sidelink discovery signal, a data signal, or a reference signal associated with the data signal on a sidelink link based on the first time information.

In some embodiments, the synchronization source of the remote terminal and the synchronization source of the relay terminal are not the same.

In other words, if the synchronization source of the remote terminal and the synchronization source of the relay terminal are different, the remote terminal may acquire the first measurement result based on the first time information; alternatively, if the synchronization source of the remote terminal and the synchronization source of the relay terminal are different, the remote terminal may measure a sidelink discovery signal, a data signal, or a reference signal associated with the data signal on a sidelink based on the first time information.

Optionally, a time difference between the timing of the remote terminal and the timing of the relay terminal is less than a preset duration.

In other words, when the synchronization source of the remote terminal and the synchronization source of the relay terminal are different, and the time difference between the timing of the remote terminal and the timing of the relay terminal is less than a preset duration, the remote terminal may acquire the first measurement result based on the first time information; or, when the synchronization source of the remote terminal and the synchronization source of the relay terminal are different, and the time difference between the timing of the remote terminal and the timing of the relay terminal is smaller than a preset duration, the remote terminal may measure a sidelink discovery signal, a data signal or a reference signal associated with the data signal on a sidelink link based on the first time information.

It should be noted that, the value or the value range of the preset duration is not limited in this application. For example, the preset duration may be one or more Cyclic Prefixes (CPs).

Optionally, the first measurement result is obtained based on the side uplink time interval configuration, and the starting position of the time interval corresponding to the side uplink time interval configuration is determined based on a time difference between the timing of the remote terminal and the timing of the relay terminal.

In other words, if the synchronization source of the remote terminal and the synchronization source of the relay terminal are different and the first measurement result is obtained based on the side uplink time interval configuration, the starting position of the time interval corresponding to the side uplink time interval configuration is determined based on the time difference between the timing of the remote terminal and the timing of the relay terminal.

In some embodiments, the first time information is used for on-frequency measurements and/or off-frequency measurements.

In other words, the remote terminal may obtain a first measurement result of a first side link based on the first time information, regardless of the same frequency measurement or different frequency measurement; alternatively, the remote terminal may measure a sidelink discovery signal, a data signal, or a reference signal associated with a data signal on a sidelink based on the first time information, whether the same frequency measurement or different frequency measurement.

In some embodiments, the side-uplink time interval configuration is used only for inter-frequency measurements.

In other words, for inter-frequency measurements, the remote terminal may only obtain a first measurement result of a first side link based on the side-uplink time interval configuration, if the first time information includes the side-uplink time interval configuration; alternatively, for inter-frequency measurements, where the first time information includes the sidelink time interval configuration, the remote terminal may only measure sidelink discovery signals, data signals, or reference signals associated with data signals on a sidelink based on the sidelink time interval configuration.

In some embodiments, different frequency points may correspond to different ones of the measurement time configuration, the sidelink time interval configuration, a signal period of the sidelink discovery signal, or the predefined period.

In some embodiments, the same frequency point may correspond to a plurality of the measurement time configurations, the sidelink time interval configurations, a signal period of the sidelink discovery signal, or the predefined period. Taking the case that the same frequency band corresponds to a plurality of measurement time configurations as an example, if the first information includes a plurality of measurement time configurations, the remote terminal may measure a sidelink discovery signal, a data signal or a reference signal associated with the data signal on a sidelink link based on a configuration with a larger period in the plurality of measurement time configurations, so as to obtain the first measurement result.

In some embodiments, the method 200 may further comprise:

receiving first configuration information, the first configuration information comprising at least one of:

the measurement time configuration, the side-uplink time interval configuration, the signal period, the type of measurement signal, the measured frequency location information.

In other words, the first configuration information may be used to configure configuration information in the first time information, such as the measurement time configuration, the side uplink time interval configuration, and the signal period, and may include other configuration information related to measurement, such as a type of measurement signal, and frequency location information of measurement.

That is, the measurement time configuration, the side uplink time interval configuration or the signal period may be configured by a network device, and the network device may flexibly adjust the measurement time configuration, the side uplink time interval configuration or the signal period according to actual requirements.

Optionally, the first configuration information is information configured for each terminal device or each frequency band.

In other words, the first configuration information may be configured for each terminal device or each frequency band.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be considered as disclosed herein. Illustratively, the time slots referred to herein may be replaced by subframes or other granularity time units, which are not specifically limited in this application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The wireless communication method according to the embodiment of the present application is described in detail above from the perspective of the remote terminal in conjunction with fig. 2, and the wireless communication method according to the embodiment of the present application will be described below from the perspective of the network device in conjunction with fig. 3.

Fig. 2 shows a schematic flow chart of a wireless communication party, 300, according to an embodiment of the present application. The method 300 may be performed by a network device.

As shown in fig. 2, the method 200 may include:

s310, transmitting first configuration information, where the first configuration information includes at least one of the following:

measurement time configuration, side-uplink time interval configuration, signal period, type of measurement signal, frequency location information of measurement.

In some embodiments, the measurement time configuration includes at least one of the following parameters:

a period of a time window, a duration of the time window, a bias of the time window; wherein the starting position of the time window is determined by the period of the time window and the bias of the time window.

In some embodiments, the side-uplink time interval configuration includes at least one of the following parameters:

the period of the time interval, the bias of the time interval, the length of the time interval and the time slot where the time interval is located.

In some embodiments, the first configuration information is information configured for each terminal device or each frequency band.

It should be understood that the steps in the method 300 may refer to corresponding steps in the method 200, and are not described herein for brevity.

Method embodiments of the present application are described above in detail in connection with fig. 1-3, and apparatus embodiments of the present application are described below in connection with fig. 4-7.

Fig. 4 is a schematic block diagram of a remote terminal 400 of an embodiment of the present application.

As shown in fig. 4, the remote terminal 400 may include:

a measurement unit 410 for acquiring a first measurement result of the first side link based on the first time information; the first time information is used for determining a measurement time for measuring the first side link, and comprises at least one of measurement time configuration, side link time interval configuration, signal period of a side link discovery signal and a predefined period;

and a processing unit 420, configured to select and/or reselect the relay terminal based on the first measurement result.

In some embodiments, the measurement unit 410 may be specifically configured to:

if the first time information includes the measurement time configuration, at least one of the following is acquired based on the measurement time configuration: a sidelink discovery reference signal received power SD-RSRP of a sidelink discovery signal on the first sidelink, a sidelink reference signal received power SL-RSRP of sidelink data on the first sidelink, and a SL-RSRP of a sidelink reference signal associated with the sidelink data.

In some embodiments, the measurement unit 410 may be specifically configured to:

if the first time information includes the side-uplink time interval configuration, at least one of the following is acquired based on the side-uplink time interval configuration: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the measurement unit 410 may be specifically configured to:

if the first time information includes the measurement time configuration and the side uplink time interval configuration, based on a configuration in which a period is greater among a period of the measurement time configuration and a period of the side uplink time interval configuration, at least one of: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the measurement unit 410 may be specifically configured to:

if the first time information includes only the predefined period, at least one of the following is acquired based on the predefined period: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.

In some embodiments, the measurement unit 410 may be specifically configured to:

and if the first time information only comprises the signal period, acquiring the SD-RSRP of the sidestream discovery signal on the first sidestream link based on the signal period.

In some embodiments, the measurement unit 410 may be specifically configured to:

if the sidestream data on the first sidestream link meets a first measurement condition, acquiring at least one of the following based on the first time information: the SL-RSRP of the sidestream data on the first sidestream link, the SL-RSRP of the sidestream reference signal associated with the sidestream data.

In some embodiments, the measurement unit 410 may be specifically configured to:

and if the sidestream data on the first sidestream link does not meet a first measurement condition, acquiring the SD-RSRP of the sidestream discovery signal on the first sidestream link based on the first time information.

In some embodiments, the first measurement condition includes at least one of:

sidestream data on the first sidestream link is periodically transmitted;

and the communication between the remote terminal and the relay terminal is switched from non-direct communication to direct communication.

In some embodiments, the synchronization source of the remote terminal and the synchronization source of the relay terminal are the same.

In some embodiments, the synchronization source of the remote terminal and the synchronization source of the relay terminal are not the same.

Optionally, a time difference between the timing of the remote terminal and the timing of the relay terminal is less than a preset duration.

Optionally, the first measurement result is obtained based on the side uplink time interval configuration, and the starting position of the time interval corresponding to the side uplink time interval configuration is determined based on a time difference between the timing of the remote terminal and the timing of the relay terminal.

In some embodiments, the first time information is used for on-frequency measurements and/or off-frequency measurements.

In some embodiments, the side-uplink time interval configuration is used only for inter-frequency measurements.

In some embodiments, the measurement unit 410 may be further configured to:

receiving first configuration information, the first configuration information comprising at least one of:

the measurement time configuration, the side-uplink time interval configuration, the signal period, the type of measurement signal, the measured frequency location information.

Optionally, the measurement time configuration includes at least one of the following parameters:

a period of a time window, a duration of the time window, a bias of the time window; wherein the starting position of the time window is determined by the period of the time window and the bias of the time window.

Optionally, the side-uplink time interval configuration includes at least one of the following parameters:

the period of the time interval, the bias of the time interval, the length of the time interval and the time slot where the time interval is located.

Optionally, the first configuration information is information configured for each terminal device or each frequency band.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the remote terminal 400 shown in fig. 9 may correspond to a corresponding main body in performing 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 respectively for implementing the corresponding flow in each method in fig. 1, which is not described herein for brevity.

Fig. 5 is a schematic block diagram of a network device 500 of an embodiment of the present application.

As shown in fig. 5, the network device 500 may include:

a transmitting unit 510, configured to transmit first configuration information, where the first configuration information includes at least one of the following:

measurement time configuration, side-uplink time interval configuration, signal period, type of measurement signal, frequency location information of measurement.

In some embodiments, the measurement time configuration includes at least one of the following parameters:

a period of a time window, a duration of the time window, a bias of the time window; wherein the starting position of the time window is determined by the period of the time window and the bias of the time window.

In some embodiments, the side-uplink time interval configuration includes at least one of the following parameters:

the period of the time interval, the bias of the time interval, the length of the time interval and the time slot where the time interval is located.

In some embodiments, the first configuration information is information configured for each terminal device or each frequency band.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the network device 500 shown in fig. 9 may correspond to a corresponding main body in performing the method 200 in the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 500 are respectively for implementing the corresponding flow in each method in fig. 1, which are not described herein for brevity.

The communication device of the embodiments of the present application is described above from the perspective of the functional module in conjunction with the accompanying drawings. It should be understood that the functional module may be implemented in hardware, or may be implemented by instructions in software, or may be implemented by a combination of hardware and software modules. Specifically, each step of the method embodiments in the embodiments of the present application may be implemented by an integrated logic circuit of hardware in a processor and/or an instruction in software form, and the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented as a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. Alternatively, the software modules may be located in a well-established storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and the like. The storage medium is located in a memory, and the processor reads information in the memory, and in combination with hardware, performs the steps in the above method embodiments.

For example, the measurement unit 410 and the transmission unit 510 referred to above may be implemented by transceivers, 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.

As shown in fig. 6, the communication device 600 may include a processor 610.

Wherein the processor 610 may call and run a computer program from a memory to implement the methods in embodiments of the present application.

As shown in fig. 6, the communication device 600 may also include a memory 620.

The memory 620 may be used to store instruction information, and may also be used to store code, instructions, etc. for execution by the processor 610. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application. The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

As shown in fig. 6, the communication device 600 may also include a transceiver 630.

The processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may 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. Transceiver 630 may further include antennas, the number of which may be one or more.

It should be appreciated that the various components in the communication device 600 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.

It should also be understood that the communication device 600 may be a remote terminal of the embodiment of the present application, and that the communication device 600 may implement respective flows implemented by the remote terminal in the respective methods of the embodiment of the present application, that is, the communication device 600 of the embodiment of the present application may correspond to the remote terminal 400 of the embodiment of the present application, and may correspond to respective main bodies in performing the method 200 according to the embodiment of the present application, which are not described herein for brevity. Similarly, the communication device 600 may be a network device according to an embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in the respective methods according to the embodiments of the present application. That is, the communication device 600 of the embodiment of the present application may correspond to the network device 500 of the embodiment of the present application, and may correspond to a corresponding body in performing the method 300 according to the embodiment of the present application, which is not described herein for brevity.

In addition, the embodiment of the application also provides a chip.

For example, the chip may be an integrated circuit chip having signal processing capabilities, and may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc. Alternatively, the chip may be applied to various communication devices, so that the communication device mounted with the chip can perform the methods, steps and logic blocks 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.

As shown in fig. 7, the chip 700 includes a processor 710.

The processor 710 may call and execute a computer program from a memory to implement the methods of the embodiments of the present application.

As shown in fig. 7, the chip 700 may further include a memory 720.

Wherein the processor 710 may call and run a computer program from the memory 720 to implement the methods in embodiments of the present application. The memory 720 may be used for storing instruction information, and may also be used for storing code, instructions, etc. for execution by the processor 710. Memory 720 may be a separate device from processor 710 or may be integrated into processor 710.

As shown in fig. 7, the chip 700 may further include an input interface 730.

The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

As shown in fig. 7, the chip 700 may further include an output interface 740.

The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

It should be understood that the chip 700 may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, or may implement a corresponding flow implemented by the remote terminal in each method in the embodiment of the present application, which is not described herein for brevity.

It should also be appreciated that the various components in the chip 700 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.

The processors referred to above may include, but are not limited to:

a general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.

The processor may be configured to implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory or erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The above references to memory include, but are not limited to:

volatile memory and/or nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct memory bus RAM (DR RAM).

It should be noted that the memory described herein is intended to comprise these and any other suitable types of memory.

There is also provided in an embodiment of the present application a computer-readable storage medium for storing a computer program. The computer readable storage medium stores one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiments shown in method 200 or 300. Optionally, the computer readable storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity. Optionally, the computer readable storage medium may be applied to a remote terminal in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the remote terminal in each method of the embodiments of the present application, which is not described herein for brevity.

A computer program product, including a computer program, is also provided in an embodiment of the present application. Optionally, the computer program product may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity. Optionally, the computer program product may be applied to a remote terminal in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the remote terminal in each method of the embodiments of the present application, which is not described herein for brevity.

A computer program is also provided in an embodiment of the present application. The computer program, when executed by a computer, enables the computer to perform the methods of the embodiments shown in method 200 or 300. Optionally, the computer program may be applied to a network device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity. Optionally, the computer program may be applied to a remote terminal in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding procedure implemented by the remote terminal in each method in the embodiments of the present application, which is not described herein for brevity.

The embodiment of the present application further provides a communication system, which may include the above-mentioned far-end terminal and the relay terminal, so as to form the communication system 100 shown in fig. 1, which is not described herein for brevity. It should be noted that the term "system" and the like herein may also be referred to as "network management architecture" or "network system" and the like.

It is also to be understood that the terminology used in the embodiments of the present application and the appended claims is for the purpose of describing particular embodiments only, and is not intended to be limiting of the embodiments of the present application. For example, as used in the examples and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Those of skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application. If implemented as a software functional unit and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or, what contributes to the prior art, or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

Those skilled in the art will further appreciate that, for convenience and brevity, specific working procedures of the above-described system, apparatus and unit may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein. In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the division of units or modules or components in the above-described apparatus embodiments is merely a logic function division, and there may be another division manner in actual implementation, for example, multiple units or modules or components may be combined or may be integrated into another system, or some units or modules or components may be omitted or not performed. As another example, the units/modules/components described above as separate/display components may or may not be physically separate, i.e., may be located in one place, or may be distributed over multiple network elements. Some or all of the units/modules/components may be selected according to actual needs to achieve the purposes of the embodiments of the present application. Finally, it is pointed out that the coupling or direct coupling or communication connection between the various elements shown or discussed above can be an indirect coupling or communication connection via interfaces, devices or elements, which can be in electrical, mechanical or other forms.

The foregoing is merely a specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and all changes and substitutions are included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims (31)

1. A method of wireless communication adapted for use with a remote terminal, the method comprising:

   acquiring a first measurement result of the first side uplink based on the first time information; the first time information is used for determining a measurement time for measuring the first side link, and comprises at least one of measurement time configuration, side link time interval configuration, signal period of a side link discovery signal and a predefined period;

   and selecting and/or reselecting the relay terminal based on the first measurement result.
2. The method of claim 1, wherein the obtaining the first measurement of the first side-link based on the first time information comprises:

   if the first time information includes the measurement time configuration, at least one of the following is acquired based on the measurement time configuration: a sidelink discovery reference signal received power SD-RSRP of a sidelink discovery signal on the first sidelink, a sidelink reference signal received power SL-RSRP of sidelink data on the first sidelink, and a SL-RSRP of a sidelink reference signal associated with the sidelink data.
3. The method of claim 1, wherein the obtaining the first measurement of the first side-link based on the first time information comprises:

   if the first time information includes the side-uplink time interval configuration, at least one of the following is acquired based on the side-uplink time interval configuration: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.
4. The method of claim 1, wherein the obtaining the first measurement of the first side-link based on the first time information comprises:

   if the first time information includes the measurement time configuration and the side uplink time interval configuration, based on a configuration in which a period is greater among a period of the measurement time configuration and a period of the side uplink time interval configuration, at least one of: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.
5. The method of claim 1, wherein the obtaining the first measurement of the first side-link based on the first time information comprises:

   if the first time information includes only the predefined period, at least one of the following is acquired based on the predefined period: the SD-RSRP of the sidestream discovery signal on the first sidestream link, the SL-RSRP of sidestream data on the first sidestream link, and the SL-RSRP of a sidestream reference signal associated with the sidestream data.
6. The method of claim 1, wherein the obtaining the first measurement of the first side-link based on the first time information comprises:

   and if the first time information only comprises the signal period, acquiring the SD-RSRP of the sidestream discovery signal on the first sidestream link based on the signal period.
7. The method according to any one of claims 1 to 6, wherein the obtaining a first measurement of the first side link based on the first time information comprises:

   if the sidestream data on the first sidestream link meets a first measurement condition, acquiring at least one of the following based on the first time information: the SL-RSRP of the sidestream data on the first sidestream link, the SL-RSRP of the sidestream reference signal associated with the sidestream data.
8. The method according to any one of claims 1 to 6, wherein the obtaining a first measurement of the first side link based on the first time information comprises:

   and if the sidestream data on the first sidestream link does not meet a first measurement condition, acquiring the SD-RSRP of the sidestream discovery signal on the first sidestream link based on the first time information.
9. The method according to claim 7 or 8, wherein the first measurement condition comprises at least one of:

   sidestream data on the first sidestream link is periodically transmitted;

   and the communication between the remote terminal and the relay terminal is switched from non-direct communication to direct communication.
10. The method according to any of claims 1 to 9, wherein the synchronization source of the remote terminal and the synchronization source of the relay terminal are the same.
11. The method according to any of claims 1 to 9, wherein the synchronization source of the remote terminal and the synchronization source of the relay terminal are not identical.
12. The method of claim 11, wherein a time difference between the timing of the remote terminal and the timing of the relay terminal is less than a preset duration.
13. The method of claim 11, wherein the first measurement result is obtained based on the side uplink time interval configuration, and wherein a starting position of a time interval corresponding to the side uplink time interval configuration is determined based on a time difference between a timing of the remote terminal and a timing of the relay terminal.
14. The method according to any of claims 1 to 13, wherein the first time information is used for co-frequency measurements and/or inter-frequency measurements.
15. The method according to any of the claims 1 to 13, characterized in that the side-uplink time interval configuration is used only for inter-frequency measurements.
16. The method according to any one of claims 1 to 15, further comprising:

    receiving first configuration information, the first configuration information comprising at least one of:

    the measurement time configuration, the side-uplink time interval configuration, the signal period, the type of measurement signal, the measured frequency location information.
17. The method of claim 16, wherein the measurement time configuration comprises at least one of the following parameters:

    a period of a time window, a duration of the time window, a bias of the time window; wherein the starting position of the time window is determined by the period of the time window and the bias of the time window.
18. The method of claim 16, wherein the side-uplink time interval configuration comprises at least one of the following parameters:

    the period of the time interval, the bias of the time interval, the length of the time interval and the time slot where the time interval is located.
19. The method according to claim 16, wherein the first configuration information is information configured for each terminal device or each frequency band.
20. A method of wireless communication adapted for use with a network device, the method comprising:

    transmitting first configuration information, wherein the first configuration information comprises at least one of the following:

    measurement time configuration, side-uplink time interval configuration, signal period, type of measurement signal, frequency location information of measurement.
21. The method of claim 20, wherein the measurement time configuration comprises at least one of the following parameters:

    a period of a time window, a duration of the time window, a bias of the time window; wherein the starting position of the time window is determined by the period of the time window and the bias of the time window.
22. The method of claim 20, wherein the side-uplink time interval configuration comprises at least one of the following parameters:

    The period of the time interval, the bias of the time interval, the length of the time interval and the time slot where the time interval is located.
23. The method according to claim 20, wherein the first configuration information is information configured for each terminal device or each frequency band.
24. A remote terminal, comprising:

    a measurement unit for acquiring a first measurement result of a first side link based on first time information; the first time information is used for determining a measurement time for measuring the first side link, and comprises at least one of measurement time configuration, side link time interval configuration, signal period of a side link discovery signal and a predefined period;

    and the processing unit is used for selecting and/or reselecting the relay terminal based on the first measurement result.
25. A network device, comprising:

    a transmitting unit, configured to transmit first configuration information, where the first configuration information includes at least one of the following:

    measurement time configuration, side-uplink time interval configuration, signal period, type of measurement signal, frequency location information of measurement.
26. A remote terminal, comprising:

    a processor, a memory and a transceiver, the memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any of claims 1 to 19.
27. A network device, comprising:

    a processor, a memory and a transceiver, the memory being for storing a computer program, the processor being for invoking and running the computer program stored in the memory to perform the method of any of claims 20 to 23.
28. A chip, comprising:

    a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 19 or the method of any one of claims 20 to 23.
29. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 19 or the method of any one of claims 20 to 23.
30. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 19 or the method of any one of claims 20 to 23.
31. A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 19 or the method of any one of claims 20 to 23.