CN118104329A

CN118104329A - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN118104329A
Application number: CN202180103381.4A
Authority: CN
Inventors: 冷冰雪; 刘洋; 卢前溪; 范江胜
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2024-05-28
Also published as: WO2023123229A1

Abstract

A method of wireless communication, a terminal device and a network device, the method comprising: the terminal device transmits first information, which is related to side-uplink synchronization of the terminal device. The terminal equipment reports the information related to the side-link synchronization of the terminal equipment, so that the network equipment can determine the target side-link synchronization configuration of the terminal equipment according to the first information, and the terminal equipment is further favorable for selecting a proper synchronization source based on the target side-link synchronization configuration, thereby ensuring more reliable side-link transmission.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a wireless communication method, terminal equipment and network equipment.

Background

In the sidelink system, the synchronization source used by the terminal device for sidelink synchronization may be of various types, and the resource pool used by the terminal device for sidelink communication may also be configured to support the synchronization source used by the terminal device. For example, when the terminal device applies for the resource to the network device, the synchronization source of the terminal device is reported, and the network device configures the resource pool based on the synchronization source of the terminal device. However, based on this method, there may be a case that the side-link synchronization configuration configured by the network device for the terminal device is not reasonable, so that the terminal device and other terminal devices cannot communicate, or the synchronization source is frequently switched, so how to perform the reasonable side-link synchronization configuration is a problem to be solved.

Disclosure of Invention

The application provides a wireless communication method, terminal equipment and network equipment, wherein the terminal equipment reports information related to the side uplink synchronization to the network equipment, so that the network equipment can configure proper side uplink synchronization configuration for the terminal equipment based on the information.

In a first aspect, a method of wireless communication is provided, comprising: the terminal device transmits first information, which is related to side-uplink synchronization of the terminal device.

In a second aspect, there is provided a method of wireless communication, comprising: the network device receives first information sent by the terminal device, wherein the first information is related to side uplink synchronization of the terminal device.

In a third aspect, a terminal device is provided for performing the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device comprises functional modules for performing the method of the first aspect or its implementation manner.

In a fourth aspect, a network device is provided for performing the method of the second aspect or implementations thereof.

In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In a fifth aspect, a terminal device is provided 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 and executing the method in the first aspect or various implementation manners thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

A seventh aspect provides a chip for implementing the method of any one of the first to second aspects or each implementation thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to second aspects or implementations thereof.

A ninth aspect 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, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

By the technical scheme, the terminal equipment reports the information related to the lateral transmission of the terminal equipment to the network equipment, so that the network equipment can configure the terminal equipment with a proper lateral signal quality threshold for the terminal equipment to select a proper relay terminal based on the information.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture to which embodiments of the present application apply.

Fig. 2 is a schematic diagram of another communication system architecture to which embodiments of the present application apply.

Fig. 3 is a schematic interaction diagram of a method of wireless communication provided by an embodiment of the present application.

Fig. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.

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

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

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

Fig. 8 is a schematic block diagram of a communication system provided in accordance with an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art to which the application pertains without inventive faculty, are intended to fall within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio Service (GENERAL PACKET Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio, NR) system, NR system evolution system, LTE-based access to unlicensed spectrum on unlicensed spectrum, NR-based access to unlicensed spectrum, NR-U on unlicensed spectrum, non-terrestrial communication network (Non-TERRESTRIAL NETWORKS, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (WIRELESS FIDELITY, WIFI), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.

Generally, the number of connections supported by the conventional Communication system is limited and easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, device-to-Device (D2D) Communication, machine-to-machine (Machine to Machine, M2M) Communication, machine type Communication (MACHINE TYPE Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) Communication, or internet of vehicles (Vehicle to everything, V2X) Communication, etc., and the embodiments of the present application can also be applied to these Communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or an independent (Standalone, SA) networking scenario.

Optionally, the communication system in the embodiment of the present application may be applied to unlicensed spectrum, where unlicensed spectrum may also be considered as shared spectrum; or the communication system in the embodiment of the present application may also be applied to licensed spectrum, where licensed spectrum may also be considered as non-shared spectrum.

Embodiments of the present application are described in connection with a network device and a terminal device, where the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User Equipment, or the like.

The terminal device may be a STATION (ST) in a WLAN, 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) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In the embodiment of the application, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (SELF DRIVING), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (SMART GRID), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (SMART CITY), or a wireless terminal device in smart home (smart home), or the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the embodiment of the present application, the network device may be a device for communicating with a mobile device, where the network device may be an Access Point (AP) in a WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device or a base station (gNB) in an NR network, a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

By way of example, and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth Orbit (medium earth Orbit, MEO) satellite, a geosynchronous Orbit (geostationary earth Orbit, GEO) satellite, a high elliptical Orbit (HIGH ELLIPTICAL Orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In the embodiment of the present application, a network device may provide services for a cell, where a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (e.g., a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (SMALL CELL), where the small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., 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 terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application. The terms "first," "second," "third," and "fourth" and the like in the description and in the claims and drawings are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, etc.

In the embodiment of the present application, the "pre-defining" or "pre-configuring" may be implemented by pre-storing corresponding codes, tables or other manners that may be used to indicate relevant information in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation manner thereof. Such as predefined may refer to what is defined in the protocol.

In the embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited in the present application.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The following related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

Fig. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applicable. The transmission resources of the in-vehicle terminals (in-vehicle terminal 121 and in-vehicle terminal 122) are allocated by the base station 110, and the in-vehicle terminals transmit data on the side links according to the resources allocated by the base station 110. Specifically, the base station 110 may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.

Fig. 2 is a schematic diagram of another communication system to which embodiments of the present application are applicable. The vehicle-mounted terminals (the vehicle-mounted terminal 131 and the vehicle-mounted terminal 132) autonomously select transmission resources on the resources of the side links to perform data transmission. Optionally, the vehicle-mounted terminal may select the transmission resource randomly, or select the transmission resource by listening.

It should be noted that, the Device-to-Device communication is based on a side-link (Sidelink, SL) transmission technology of a Device-to-Device (D2D), and unlike a conventional cellular system in which communication data is received or transmitted through a base station, the internet of vehicles system adopts a direct communication mode from a terminal to a terminal, so that the system has higher spectral efficiency and lower transmission delay. Two transmission modes are defined in 3GPP, denoted as: a mode (sidelink resource allocation mode A) and a second mode (sidelink resource allocation mode B).

Mode a: the transmission resources of the terminal are allocated by the base station, and the terminal transmits data on the side links according to the resources allocated by the base station; the base station may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.

Mode B: and the terminal selects one resource from the resource pool to transmit data.

Proximity Services (Proximity-based Services, proSe) involve device-to-device communication, primarily for public security class Services. In ProSe, by configuring the position of the resource pool in the time domain, for example, the resource pool is discontinuous in the time domain, discontinuous data transmission/reception of the UE on the side link is achieved, so that the effect of power saving is achieved.

The Internet of vehicles system is mainly researched aiming at the scenes of vehicle-to-vehicle communication, and is mainly oriented to the traffic of vehicle-to-vehicle and vehicle-to-vehicle communication of relatively high-speed movement. In V2X, since the in-vehicle system has continuous power supply, power efficiency is not a major problem, and delay of data transmission is a major problem, so that continuous transmission and reception by the terminal device is required in system design.

Wearable device (FeD 2D) scenes, research is conducted on the scenes that the wearable device accesses to a network through a mobile phone, and the wearable device is mainly oriented to the scenes of low moving speed and low power access.

In FeD2D, the base station may configure discontinuous reception (Discontinuous Reception, DRX) parameters of a remote terminal through a relay terminal.

In New air-interface-vehicle to other devices (New Radio-Vehicle to Everything, NR-V2X), autopilot is supported, thus placing higher demands on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, greater coverage, more flexible resource allocation, etc.

In the LTE-V2X system, a broadcast transmission mode is supported, and in the NR-V2X system, unicast and multicast transmission modes are introduced.

Similar to the LTE V2X system, the NR V2X system can also define the two resource grant modes described above for mode a/mode B. The resource acquisition is indicated by means of a side-link grant, i.e. the side-link grant indicates the time-frequency position of the corresponding physical side-Control Channel (PSCCH) and physical side-shared Channel (PHYSICAL SIDELINK SHARED CHANNEL, PSSCH) resources.

In addition to feedback-free, UE-initiated hybrid automatic request retransmission (Hybrid Automatic Repeat reQuest, HARQ) retransmissions, feedback-based HARQ retransmissions are introduced in NR V2X, not limited to unicast communications, but also multicast communications.

To facilitate an understanding of embodiments of the present application, the side-uplink synchronization techniques associated with the present application are described.

In an NR-V2X system, the synchronization source types include: eNB, gNB, global navigation satellite System (Global Navigation SATELLITE SYSTEM, GNSS) GNSS, UE, terminal internal clock.

In some scenarios, the synchronization source levels defined by the NR-V2X system are shown in Table 1 below:

TABLE 1 synchronization priority for NR-V2X System

The terminal equipment of the side transmission may be located in the cell coverage or outside the cell coverage, and when the terminal equipment is in the cell coverage, the network equipment may configure the gNB/eNB or GNSS to be of higher priority. The terminal device may determine the synchronization source according to different scenarios and different configuration situations.

In some scenarios, the resource pool used for the side-link communication may be configured to support what kind of synchronization source, and when the terminal device applies for resources to the network device, the synchronization source of the terminal device may also be reported, so that the network device may perform appropriate configuration on the resource pool.

However, based on the above mechanism, there are cases where the side uplink synchronization configuration by the network device to the terminal device is not reasonable. For example, the following scenario:

1. the synchronization sources of the terminal device and other surrounding terminal devices are different, so that communication cannot be performed.

There are a variety of synchronization sources eNB, gNB, GNSS, UE in the side-uplink communication system, the terminal internal clocks. The terminal device selects the synchronization source according to the synchronization priority configured by the network device and the related parameter configuration (for example, a threshold for transmitting a synchronization signal, a reliability threshold of the UE as the synchronization source). If other terminal devices synchronized with a plurality of synchronization sources exist around the terminal device and the synchronization time difference is large, the terminal device cannot communicate with the terminal device using a different synchronization source.

2. Synchronous source switching is frequent.

The terminal device determines whether the currently used synchronization source is reliable according to the network configuration (for example, the reliability threshold of the UE as the synchronization source), and if not, searches for other reliable synchronization sources and switches to the reliable synchronization source. If the reliability threshold of the network configuration is unreasonable, the synchronization source is frequently switched, and thus the side uplink communication is interrupted, in this case, the terminal device needs to reselect resources, frequently interact with the network device, and request the network device for resource reconfiguration, and the like.

Therefore, how to perform appropriate side-link synchronization configuration is a problem to be solved.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The above related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

Fig. 3 is a schematic interaction diagram of a method 200 of wireless communication according to an embodiment of the application, as shown in fig. 3, the method 200 comprising at least part of the following:

s201, a terminal device transmits first information, where the first information is related to side uplink synchronization of the terminal device.

Correspondingly, the network device receives the first information.

Alternatively, the terminal device may be a terminal device in an internet of vehicles system, or may be a terminal device in another communication system supporting side communication, which is not limited to this.

In some embodiments of the present application, the first information related to side-uplink synchronization of the terminal device may refer to:

The first information includes side-uplink synchronization related information of the terminal device. For example, the first information may include information for performing side-link synchronization, and/or side-link transmission case information caused by side-link non-synchronization, and/or synchronization source related information.

Thus, the first information may be considered as a kind of side-uplink synchronization situation report. That is, the terminal device may report the side uplink synchronization situation to the network device through the side uplink synchronization situation report. Further, the network device may configure the terminal device with an appropriate side-uplink synchronization configuration based on the above information.

In some embodiments of the application, the first information includes, but is not limited to, at least one of:

indication information of a synchronization source used by the terminal equipment;

signal quality information between the terminal device and the synchronization source;

signal quality information between the terminal device and the network device;

Measuring related information;

Side transmission failure related information;

synchronizing source switching related information;

And the terminal equipment reports the reason value of the first information, or triggers the event type of reporting the first information.

The above information will be described below with reference to specific examples.

In some embodiments, the indication information of the synchronization source used by the terminal device may be identification information of the synchronization source, or may also be other indication information, as long as the terminal device and the network device can identify the synchronization source according to the indication information, which is not limited in the present application.

In some embodiments, the synchronization source of the terminal device may be a network device, such as an eNB or a gNB, or a GNSS, or other terminal device, or may also be an internal clock of the terminal device.

In some embodiments, when the synchronization source is another terminal device, the signal quality information between the terminal device and the synchronization source includes:

Signal quality information of a sidelink between the terminal device and other terminal devices, such as a sidelink reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) (i.e., SL-RSRP) or a sidelink discovery message (Sidelink discovery, SD) RSRP, i.e., SD-RSRP.

In some embodiments, the signal quality information between the terminal device and the network device may include:

signal Quality information of the link between the terminal device and the network device, such as RSRP or reference signal Quality (RSRQ).

Wherein the link between the terminal device and the network device may refer to a Uu link between the terminal device and the network device.

Optionally, in the case that the synchronization source of the terminal device is a network device, the terminal device reports signal quality information of a link between the terminal device and the network device to the network device. Or whether the synchronization source of the terminal equipment is the network equipment or not, the terminal equipment reports the signal quality information of the link between the terminal equipment and the network equipment to the network equipment.

In some embodiments, the measurement related information may include information that the terminal device performs the measurement.

In some embodiments, the terminal device performing the measurement may refer to the terminal device performing the measurement for selecting the synchronization source.

For example, the terminal device may measure the signal quality of the link between the terminal device and the candidate synchronization source. The candidate synchronization source may include, but is not limited to, a network device, such as an eNB or gNB, GNSS, other terminal devices, etc.

In some embodiments, the measurement related information includes, but is not limited to, at least one of:

the terminal equipment executes the measured time information;

The terminal device performs measured location information.

In some embodiments, the measurement may refer to a measurement that has been performed by the terminal device. After the terminal device performs the measurement, the time information and/or the position information of the measurement may be recorded and further reported to the network device, so as to assist the network device to configure the terminal device with a suitable side uplink synchronization configuration.

In some embodiments, the measurement related information may further include configuration information used by the terminal device to perform measurements to select a synchronization source, for example, a reliability threshold used to select a synchronization source.

In some embodiments, the sidelink transmission failure may refer to a sidelink transmission failure due to a sidelink out of synchronization or a sidelink transmission failure due to a difference in synchronization source between terminal devices of the sidelink communication. Because of possible problems with the synchronization sources being unsynchronized, side transmission based on different synchronization sources may result in side link unsynchronization and thus side transmission failure.

In some embodiments of the present application, the sidelink transmission failure related information includes, but is not limited to, at least one of the following:

the terminal equipment executes time information of failure of lateral transmission;

The terminal equipment executes position information of failure of lateral transmission;

the terminal equipment executes parameter information of failure of lateral transmission;

signal quality information of a side uplink in which a side transmission failure occurs.

In some embodiments, the sidestream transmission may refer to sidestream transmission that the terminal device has performed. After the terminal device executes the sidelink transmission and fails to execute the transmission, the time information and/or the position information of the sidelink transmission can be recorded and further reported to the network device for assisting the network device to configure proper sidelink synchronous configuration for the terminal device.

It should be understood that, in the embodiment of the present application, the parameter information that the terminal device performs the sidelink transmission failure may refer to any parameter for characterizing the sidelink transmission failure situation between the terminal devices, which is not limited by the present application.

In some embodiments, the parameter information of the failure of the terminal device to perform the sidestream transmission includes, but is not limited to, at least one of the following:

The times of the failure of the terminal equipment to execute the lateral transmission in unit time;

In unit time, the average value of times that the terminal equipment fails to execute the lateral transmission is obtained;

In unit time, the number of times of the terminal equipment executing the lateral transmission failure is larger than the proportion of a third threshold;

and the terminal equipment executes the time interval of failure of the adjacent two sidestream transmissions.

It should be understood that in the embodiment of the present application, the terminal device may report any sidelink transmission failure situation to the network device, whether the sidelink transmission failure situation is acceptable or not, or may report the sidelink transmission failure situation only under a specific situation. For example, when the sidelink transmission failure condition is not acceptable (or the sidelink transmission failure condition is serious), the sidelink transmission failure condition is reported, and when the sidelink transmission failure condition is acceptable (or the sidelink transmission failure condition is not serious), the sidelink transmission failure condition is not reported.

In some embodiments, the unit time may be predefined, or may be configured by a network device, or determined by a terminal device.

For example, the unit time may be K time units, where K is a positive integer, and the time units may be, for example, subframes, slots, symbols, or the like. Alternatively, the K may be predefined, or configured by the network device, or determined by the terminal device.

Alternatively, the terminal device may determine whether the sidelink transmission is successful according to hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat Request Acknowledgement, HARQ-ACK) information of the receiving terminal, or whether the sidelink transmission is successful according to whether the HARQ-ACK information of the receiving terminal is received.

For example, if NACK information of the receiving end terminal is received or if HARQ-ACK information of the receiving end terminal is not received, it is determined that the sidelink transmission fails, and the number of times of the sidelink transmission failure is further increased by one.

In some embodiments, the number of times that the terminal device fails to perform the sidelink transmission in a unit time may refer to:

and the terminal equipment executes the accumulated times of the sidestream transmission failure in a unit time.

In some embodiments, the terminal device may report the information of the number of times of lateral transmission failure in the unit time to the network device when the number of times of lateral transmission failure in the unit time is greater than or equal to the first threshold, and not report the information of lateral transmission failure in the unit time when the number of times of lateral transmission failure in the unit time is less than the first threshold. The number of times of the side transmission failure in unit time is smaller than the first time threshold, the performance of the synchronization source can be considered to meet the side transmission requirement, and the side link synchronization configuration can not be adjusted, so that the information can not be reported to the network equipment.

Alternatively, the first time count threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

In some embodiments, the average value of the number of times that the terminal device performs the sidelink transmission failure in a unit time may refer to:

and in X unit time, the average value of the times that the terminal equipment performs the sidestream transmission failure is the average value, wherein X is a positive integer.

Alternatively, the X may be predefined, or configured by the network device, or determined by the terminal device.

The number of times or average number of times that the terminal device performs the sidestream transmission failure in unit time can reflect the reliability of the synchronization source, and the number of times that the sidestream transmission failure occurs is more, which means that the reliability of the synchronization source is worse, otherwise, the reliability of the synchronization source is better. The method and the device have the advantages that the time information of failure times of lateral transmission in single-bit time is reported to the network device, so that the network device can be guaranteed to timely adjust lateral uplink synchronous configuration of the terminal device under the condition that the reliability of a synchronous source is poor.

In some embodiments, the terminal device may report the information of the average number of times of lateral transmission failure in the unit time to the network device when the average number of times of lateral transmission failure in the unit time is greater than or equal to the second time threshold, and not report the information of the average number of times of lateral transmission failure in the unit time when the average number of times of lateral transmission failure in the unit time is less than the second time threshold. The average number of times of the side transmission failure in unit time is smaller than the second time threshold, the performance of the synchronization source can be considered to meet the side transmission requirement, and the side link synchronization configuration can not be adjusted, so that the information can not be reported to the network equipment.

Alternatively, the second time threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

In some embodiments, the number of times that the terminal device performs the sidelink transmission failure is greater than the third threshold in unit time, which indicates that the sidelink transmission failure of the terminal device is serious, and the terminal device reports the information to the network device, which is beneficial to ensuring that the network device timely knows the performance of the synchronization source of the terminal device so as to timely adjust the sidelink synchronization configuration of the terminal device.

Alternatively, the proportion of the number of times that the terminal device performs the sidelink transmission failure in the unit time is greater than the third threshold may be obtained by counting the number of times that the terminal device performs the sidelink transmission failure in Y unit times is greater than the third threshold, where Y is a positive integer.

For example, in one unit time of the Y unit times, the number of times that the terminal device fails to perform the side transmission is greater than the third threshold, the count value is incremented by one, otherwise, the count value is not counted, and after the Y unit times are counted, the ratio of the count value to the Y is taken as the ratio that the number of times that the terminal device fails to perform the side transmission is greater than the third threshold in the unit time.

Optionally, Y is predefined, or network device configured, or terminal device determined.

In some embodiments, the terminal device may report the proportion information to the network device when the proportion that the number of times of the terminal device performing the sidelink transmission failure is greater than or equal to the third proportion threshold is greater than or equal to the first proportion threshold in a unit time, and not report the proportion information when the proportion is less than the first proportion threshold. The proportion information is smaller than the first proportion threshold, the performance of the synchronous source can be considered to meet the requirement of side line transmission, and the side line synchronous configuration can not be adjusted, so that the information can not be reported to the network equipment.

Alternatively, the first proportional threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

In some embodiments, the time interval between the terminal device performing the adjacent two sidestream transmission failures may be used to characterize the frequency of the terminal device performing the sidestream transmission failures, and may also reflect the reliability of the synchronization source of the terminal device. If the time interval is shorter, the failure of the side transmission of the terminal equipment is more frequent, that is, the reliability of the synchronization source of the terminal equipment is poor, or if the time interval is longer, the failure of the side transmission of the terminal equipment is less frequent, that is, the reliability of the synchronization source of the terminal equipment is good. By reporting the time interval information to the network device, the network device is beneficial to ensuring that the network device timely knows the performance of the synchronization source of the terminal device, so as to timely adjust the side uplink synchronization configuration of the terminal device.

In some embodiments, the terminal device may report the time interval to the network device when the time interval for performing the failure of the adjacent two sidelink transmissions is greater than the first time interval threshold, and not report the time interval information when the time interval is less than the first time interval threshold. The time interval is less than the first time interval threshold, and the performance of the synchronization source can be considered to meet the sidelink transmission requirement, so that the sidelink synchronization configuration can not be adjusted, and therefore, the information can not be reported to the network equipment.

Alternatively, the first time interval threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

In some embodiments of the present application, the synchronization source handover related information includes, but is not limited to, at least one of:

The terminal equipment executes time information of synchronous source switching;

the terminal equipment executes the position information of the synchronous source switching;

and the terminal equipment executes parameter information of synchronous source switching.

In some embodiments, the synchronization source switch may refer to a synchronization source switch that has been performed by the terminal device. After the terminal device performs the synchronization source switching, the time information and/or the position information of the synchronization source switching may be recorded and further reported to the network device, so as to assist the network device to configure appropriate side uplink synchronization configuration for the terminal device.

It should be understood that, in the embodiment of the present application, the parameter information of the terminal device performing the synchronization source switching may refer to any parameter, such as a frequency or a period, for characterizing the terminal device performing the synchronization source switching, which is not limited in the present application.

In some embodiments, the parameter information of the terminal device performing the synchronization source handover includes at least one of:

The number of times of synchronous source switching executed by the terminal equipment in unit time;

the average value of the times of the synchronous source switching executed by the terminal equipment in unit time;

In unit time, the number of times of executing synchronous source switching by the terminal equipment is larger than the proportion of the fourth threshold;

And the terminal equipment executes the time interval of two adjacent synchronous source switching.

It should be understood that, in the embodiment of the present application, the terminal device may report the synchronization source switching situation information to the network device, whether the synchronization source switching frequency is acceptable or not, or may report the synchronization source switching situation information only in a specific case. For example, if the synchronization source switching situation is not acceptable (e.g., affects side line transmission), the synchronization source switching situation information is reported, and if the synchronization source switching situation is acceptable, the synchronization source switching situation information is not reported.

In some embodiments, the unit time may be predefined, or may be configured by a network device, or determined by the terminal device.

For example, the unit time may be L time units, where L is a positive integer, and the time units may be, for example, subframes, slots, symbols, or the like. Alternatively, the L may be predefined, or configured by the network device, or determined by the terminal device.

In some embodiments, the number of times the terminal device performs the synchronization source handover per unit time may refer to:

The terminal device performs the cumulative number of times of synchronization source switching per unit time.

For example, a counter is maintained in a unit time, the initial value of the counter is 0, when the terminal device performs one synchronization source switching, the count value of the counter is incremented by one, and when the unit time is over, the count value of the counter is the number of times the terminal device performs the synchronization source switching in the unit time.

In some embodiments, the terminal device may report the number of times of performing the synchronization source switch in the unit time to the network device when the number of times of performing the synchronization source switch in the unit time is greater than or equal to the third number of times threshold, and not report the number of times of performing the synchronization source switch in the unit time when the number of times of performing the synchronization source switch in the unit time is less than the third number of times threshold. The number of times the synchronization source is switched in the unit time is smaller than the third number of times threshold, and the performance of the synchronization source can be considered to meet the requirement of side transmission, so that the side uplink synchronization configuration can not be adjusted, and the information can not be reported to the network equipment.

Alternatively, the third time threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

In some embodiments, the average value of the number of times the terminal device performs the synchronization source handover in a unit time may refer to:

and an average value of the times of the terminal equipment executing the synchronous source switching in A unit time, wherein A is a positive integer.

Alternatively, the a may be predefined, or configured by the network device, or determined by the terminal device.

In some embodiments, the terminal device may report the number of times of performing the synchronization source switch in a unit time to the network device when the average number of times of performing the synchronization source switch in the unit time is greater than or equal to the fourth time threshold, and not report the number of times of performing the synchronization source switch in the unit time when the number of times of performing the synchronization source switch in the unit time is less than the fourth time threshold. The number of times of synchronization source switching performed in the unit time is smaller than the fourth time threshold, and it can be considered that the performance of the synchronization source can meet the requirement of side transmission, so that the side uplink synchronization configuration can not be adjusted, and therefore, the information can not be reported to the network device.

Alternatively, the fourth time count threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

The number of times the terminal device performs the synchronization source switching or the average number of times the terminal device performs the synchronization source switching per unit time may reflect the reliability of the synchronization source. The number of times of switching the synchronous source or the average number of times is more, which means that the reliability of the synchronous source is poor, otherwise, the reliability of the synchronous source is good. The method and the device have the advantages that the frequency information of executing the switching of the synchronous source in the single time is reported to the network device, so that the network device can adjust the side uplink synchronous configuration of the terminal device in time under the condition of poor reliability of the synchronous source.

In some embodiments, the number of times the terminal device performs the synchronization source switching in a unit time is greater than the fourth threshold, which indicates that the frequency of the synchronization source switching of the terminal device is higher, and the terminal device reports the information to the network device, which is beneficial to ensuring that the network device timely knows the performance of the synchronization source of the terminal device so as to timely adjust the side uplink synchronization configuration of the terminal device.

Alternatively, the proportion of the number of times the terminal device performs the synchronization source switching in the unit time that is greater than the fourth threshold may be obtained by counting the number of times the terminal device performs the synchronization source switching in B unit time that is greater than the fourth threshold, where B is a positive integer.

For example, in one unit time of the B unit times, the number of times of executing the synchronous source switching by the terminal device is greater than the fourth threshold, the count value is incremented by one, otherwise, the count value is not counted, after the B unit times are counted, the ratio of the count value to the B is taken as the ratio that the number of times of executing the synchronous source switching by the terminal device is greater than the fourth threshold in the unit time.

Optionally, B is predefined, or network device configured, or terminal device determined.

Optionally, the terminal device may report the proportion information to the network device when the proportion that the number of times of executing the synchronization source switching by the terminal device is greater than or equal to the fourth threshold is greater than or equal to the second proportion threshold in a unit time, and not report the proportion information when the proportion is less than the second proportion threshold. The proportion information is smaller than the second proportion threshold, and the performance of the synchronous source can be considered to meet the requirement of side-line transmission, so that the side-line synchronous configuration can not be adjusted, and the information can not be reported to the network equipment.

Alternatively, the second proportional threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

In some embodiments, the time interval between two adjacent synchronization source switching performed by the terminal device may be used to characterize the frequency of the terminal device performing the synchronization source switching, and may also reflect the reliability of the synchronization source of the terminal device, if the time interval is shorter, it indicates that the terminal device performs the synchronization source switching more frequently, that is, the reliability of the synchronization source of the terminal device is worse, or if the time interval is longer, it indicates that the terminal device performs the synchronization source switching less frequently, that is, the reliability of the synchronization source of the terminal device is good. By reporting the time interval information to the network device, the network device is beneficial to ensuring that the network device timely knows the performance of the synchronization source of the terminal device, so as to timely adjust the side uplink synchronization configuration of the terminal device.

Optionally, the terminal device may report the time interval to the network device when the time interval for performing the two adjacent synchronous source switches is greater than the second time interval threshold, and not report the time interval information when the time interval is less than the second time interval threshold. The time interval is less than the first time interval threshold, and the performance of the synchronization source can be considered to meet the sidelink transmission requirement, so that the sidelink synchronization configuration can not be adjusted, and therefore, the information can not be reported to the network equipment.

Alternatively, the second time interval threshold may be predefined, or may be configured by the network device, or determined by the terminal device.

It should be understood that, in the embodiment of the present application, the number information of times the terminal device performs the side transmission failure, the average number information, or the number information of times the terminal device performs the synchronization source switching or the average number information may be replaced by a number level, for example, may be divided into a plurality of number levels, and in a specific implementation, the number level corresponding to the specific number information may be reported.

In some embodiments, the time information for the terminal device to perform the measurement may be characterized by a time node before the terminal device performs the measurement, or may also be characterized by the time when the terminal device performs the measurement. That is, the time information at which the terminal device performs the measurement is time information before the terminal device performs the measurement, or may be time information at which the terminal device performs the measurement.

In some embodiments, the time information of the failure of the terminal device to perform the sidestream transmission may be characterized by a time node before the failure of the terminal device to perform the sidestream transmission, or may be also characterized by a time when the terminal device fails to perform the sidestream transmission. That is, the time information of the failure of the terminal device to perform the side transmission may be the time information before the failure of the terminal device to perform the side transmission, or may be the time information when the failure of the terminal device to perform the side transmission.

In some embodiments, the time information for the terminal device to perform the synchronization source switch may be characterized by a time node before the terminal device performs the synchronization source switch, or may also be characterized by a time when the terminal device performs the synchronization source switch. That is, the time information of the terminal device for performing the synchronization source switching may be time information before the terminal device performs the synchronization source switching, or may be time information when the terminal device performs the synchronization source switching.

In some embodiments, the location information of the terminal device performing the measurement may be characterized by a reference location before the terminal device performs the measurement, or may be characterized by the location of the terminal device when the terminal device performs the measurement. That is, the position information of the terminal device performing the measurement is the position information before the terminal device performing the measurement; or may be location information when the measurement is performed for the terminal device.

In some embodiments, the location information of the failure of the terminal device to perform the sidestream transmission may be characterized by a reference location before the failure of the terminal device to perform the sidestream transmission, or may be characterized by a location when the terminal device fails to perform the sidestream transmission. Namely, the position information of the failure of the terminal equipment to execute the lateral transmission is the position information before the failure of the terminal equipment to execute the lateral transmission; or may be the location information when the sidestream transmission fails.

In some embodiments, the location information of the terminal device performing the synchronization source switch may be characterized by a reference location before the terminal device performs the synchronization source switch, or may be characterized by a location of the terminal device when the terminal device performs the synchronization source switch. Namely, the position information of the terminal device for executing the synchronous source switching is the position information of the terminal device before executing the synchronous source switching; or may be location information when the synchronization source handover is performed for the terminal device.

In summary, the network device may determine the distribution of the synchronization source based on the time information and/or the location information according to the time information and/or the location information reported by the terminal device in combination with the signal quality information between the terminal device and the synchronization source. For example, the distribution of synchronization sources over a certain period of time, or the distribution of synchronization sources over a certain range of locations, etc. Therefore, the network equipment can configure proper side uplink synchronous configuration for the terminal equipment according to the current time information and/or the position information of the terminal equipment and the distribution condition of the synchronous source.

In some embodiments, the reason value for reporting the first information by the terminal device may include, but is not limited to, at least one of the following:

the synchronization source of the terminal equipment changes;

the side transmission of the terminal equipment fails;

the first parameter meets a first threshold;

the second parameter satisfies a second threshold.

Alternatively, the first threshold may be predefined, or configured by the network device, or determined by the terminal device.

Alternatively, the second threshold may be predefined, or configured by the network device, or determined by the terminal device.

It should be understood that, in the embodiment of the present application, when a certain parameter (for example, the foregoing unit time, or the threshold, etc.) is configured by the network device, the network device may be configured through signaling such as system message, RRC signaling or DCI, etc., which is not limited in this application.

In some embodiments, the sidelink failure is caused by a sidelink being unsynchronized, or otherwise caused by a different synchronization source of the terminal devices of the sidelink transmission.

In some embodiments, the first parameter may be a parameter related to a sidelink transmission failure of the terminal device. For example, may include, but is not limited to, at least one of the following:

In some embodiments, the second parameter is a synchronization source handover related parameter of the terminal device, including, for example, but not limited to, at least one of:

The specific implementation of the first parameter and the second parameter refer to the related descriptions of the foregoing embodiments, and are not repeated herein for brevity.

In some embodiments of the present application, S201 may include:

and the terminal equipment sends the first information under the condition that the first condition is met.

The first condition may be that the reliability of the synchronization source representing the terminal device is poor or that the synchronization index of the side-link of the terminal device is poor. The terminal equipment can report the side uplink synchronization condition when the reliability of the synchronization source is poor, which is beneficial to ensuring that the network equipment timely knows the performance of the synchronization source of the terminal equipment so as to timely adjust the side uplink synchronization configuration of the terminal equipment.

By way of example and not limitation, the first condition includes at least one of:

the synchronization source of the terminal equipment changes;

The side transmission of the terminal equipment fails, wherein the side transmission failure is caused by asynchronous side links;

the first parameter meets a first threshold, wherein the first parameter is a parameter related to the failure of the sidestream transmission of the terminal equipment;

And the second parameter meets a second threshold, wherein the second parameter is a parameter related to synchronous source switching of the terminal equipment.

As an example, the first parameter may be the number of times that the terminal device fails to perform the sidelink transmission in a unit time, and correspondingly, the first threshold may be the first number threshold described above.

As another example, the first parameter is an average value of the number of times the terminal device fails to perform the sidelink transmission in a unit time, and correspondingly, the first threshold may be the second number threshold described above.

As yet another example, the first parameter is a ratio of the number of times that the terminal device performs the sidelink transmission failure to be greater than the third threshold in a unit time, and correspondingly, the first threshold may be a first ratio threshold.

As yet another example, the first parameter is a time interval during which the terminal device fails to perform two adjacent sidelink transmissions, and the first threshold may be a first time interval threshold.

As an example, the second parameter may be the number of times the terminal device performs the synchronization source handover per unit time, and correspondingly, the second threshold may be the third number of times threshold described above.

As another example, the second parameter is an average value of the number of times the terminal device performs the synchronization source handover in a unit time, and correspondingly, the second threshold may be the fourth number threshold described above.

As yet another example, the second parameter is a ratio of the number of times the terminal device performs the synchronization source handover to be greater than the fourth threshold per unit time, and correspondingly, the second threshold may be a second ratio threshold.

As yet another example, the second parameter is a time interval during which the terminal device performs two adjacent synchronization source handovers, and the second threshold may be a second time interval threshold.

In some embodiments of the present application, the terminal device may report the first information through a first radio resource control (Radio Resource Control, RRC) signaling. I.e. the side-uplink synchronization situation report may be reported by RRC signaling.

In some embodiments, the first RRC signaling includes at least one of:

Uplink information transfer signaling (ulinfomation transfer), sidelink user information signaling (SidelinkUEInformation), and user assistance information signaling (UEAssistanceInformation).

In other embodiments of the present application, S201 includes:

the terminal equipment sends a second RRC signaling, wherein the second RRC signaling is used for informing the network equipment that the first information is stored on the terminal equipment;

The terminal equipment receives an information request message (InformationRequest), wherein the information request message is used for notifying the terminal equipment to report first information;

the terminal device transmits an information response message (InformationResponse) that includes the first information.

For example, when the terminal device resides in the first cell, a side uplink synchronization status report is generated, then the terminal device enters a non-connected state (for example, IDLE state/INACTIVE state (INACTIVE)), and after entering the connected state, the terminal device resides in the second cell, in which case, the terminal device may send a second RRC signaling to the network device corresponding to the second cell to inform the network device that the network device stores the side uplink synchronization status report, and when the network device requests the terminal device to report the side uplink synchronization status report through InformationRequest, the terminal device reports the side uplink synchronization status report through InformationResponse.

In some embodiments, the first cell and the second cell are different, in which case the terminal device may also indicate cell identification information (e.g., cellID) of the first cell to the network device to which the second cell corresponds. Further, the network device corresponding to the second cell may forward the side uplink synchronization status report to the network device corresponding to the first cell, so that the network device corresponding to the first cell determines, according to the side uplink synchronization status report, a target side uplink synchronization configuration configured for the terminal device.

In some embodiments of the present application, the method 200 further comprises:

S202, the network equipment determines the target side uplink synchronous configuration of the terminal equipment according to the first information.

And S203, the network equipment sends the target side uplink synchronous configuration to the terminal equipment.

Optionally, in some embodiments, the target-side uplink synchronization configuration includes at least one of:

the threshold of the terminal device sending the synchronization signal can be used as the reliability threshold of the synchronization source.

As an example, if the reason value of the first information reported by the terminal device is that the synchronization source changes, the network device may configure side uplink resources for the terminal device according to the current synchronization source of the terminal device, for example, adjust the resource pool configuration of the terminal device to adapt to the changed synchronization source.

As yet another example, if the reason for the terminal device reporting the first information is that the sidelink transmission fails due to the sidelink being unsynchronized, the network device may check whether the synchronization clock of the network device remains synchronized with other synchronization sources (e.g., GNSS or other UEs) and/or adjust the synchronization source selection priority configuration of the terminal device.

For example, if the network device's synchronization clock and the clocks of other synchronization sources are not synchronized, clock synchronization may be performed to synchronize the clocks between the network device and the other synchronization sources.

As yet another example, if the reason value for reporting the first information by the terminal device is that the first parameter is greater than the first threshold. The network device may check whether the synchronization clock of the network device remains synchronized with other synchronization sources (e.g., GNSS or other UEs) and/or adjust the synchronization source selection priority configuration of the terminal device.

As yet another example, if the reason value for reporting the first information by the terminal device is that the second parameter is greater than the second threshold. The network device adjusts the synchronization source switching related configuration parameters of the terminal device and/or adjusts the conditional configuration of the terminal device capable of sending the synchronization signal.

Optionally, the synchronization source handover related configuration parameters of the terminal device may include: the reliability threshold as the synchronization source, that is, the reliability of the synchronization source is higher than or equal to the reliability threshold, can be used as the synchronization source.

Alternatively, the conditional configuration of the transmittable synchronization signal of the terminal device may include: and the terminal equipment sends a threshold of the synchronous signal.

For example, when the second parameter is greater than the second threshold, the network device may up-regulate the reliability threshold as a synchronization source, so that the terminal device selects a synchronization source with higher reliability.

In summary, the terminal device may send a side uplink synchronization status report to the network device, so that the network device may determine a target side uplink synchronization configuration of the terminal device according to the side uplink synchronization status report, and further the terminal device may be beneficial to selecting a suitable synchronization source based on the target side uplink synchronization configuration, thereby ensuring more reliable side uplink transmission.

The method embodiment of the present application is described in detail above with reference to fig. 3, and the apparatus embodiment of the present application is described in detail below with reference to fig. 4 to 8, it being understood that the apparatus embodiment corresponds to the method embodiment, and similar descriptions can refer to the method embodiment.

Fig. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the application. As shown in fig. 4, the terminal device 400 includes:

A communication unit 410, configured to send first information, where the first information is related to side uplink synchronization of the terminal device.

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

the terminal equipment reports the cause value of the first information;

Measuring related information;

information related to a sidelink transmission failure, wherein the sidelink transmission failure is caused by a sidelink asynchronization;

synchronizing source switching related information;

signal quality information between the terminal device and the network device.

In some embodiments, the indication information of the synchronization source is identification information of the synchronization source.

In some embodiments, the reason value for reporting the first information by the terminal device includes at least one of the following:

the synchronization source of the terminal equipment changes;

In some embodiments, the first parameter comprises at least one of:

In some embodiments, the second parameter comprises at least one of:

In some embodiments, the measurement related information includes at least one of:

the terminal equipment executes the measured time information;

The terminal device performs measured location information.

In some embodiments, the sidelink transmission failure related information comprises at least one of:

In some embodiments, the parameter information of the failure of the terminal device to perform the sidestream transmission includes at least one of the following:

In some embodiments, the synchronization source switch related information includes at least one of:

In some embodiments, the communication unit 410 is further configured to:

Transmitting the first information if a first condition is satisfied, wherein the first condition includes at least one of:

the synchronization source of the terminal equipment changes;

In some embodiments, the communication unit 410 is further configured to:

and sending a first Radio Resource Control (RRC) signaling, wherein the first RRC signaling comprises the first information.

In some embodiments, the first RRC signaling includes at least one of:

Uplink information transfer signaling ulinfo transfer, sidelink user information signaling SidelinkUEInformation, and user assistance information signaling UEAssistanceInformation.

In some embodiments, the communication unit 410 is further configured to:

sending a second RRC signaling, wherein the second RRC signaling is used for notifying the terminal equipment that the first information is stored;

Receiving an information request message, wherein the information request message is used for notifying the terminal equipment to report the first information;

And sending an information response message, wherein the information response message comprises the first information.

Alternatively, in some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 3, and are not described herein for brevity.

Fig. 5 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of fig. 5 includes:

a communication unit 510, configured to receive first information sent by a terminal device, where the first information is related to side uplink synchronization of the terminal device.

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

the terminal equipment reports the cause value of the first information;

Measuring related information;

synchronizing source switching related information;

signal quality information between the terminal device and the network device.

the synchronization source of the terminal equipment changes;

In some embodiments, the first parameter comprises at least one of:

In some embodiments, the second parameter comprises at least one of:

the terminal equipment executes the measured time information;

The terminal device performs measured location information.

In some embodiments, the network device receives first information sent by a terminal device, including:

The network device receives the first information sent by the terminal device when a first condition is met, wherein the first condition comprises at least one of the following:

the synchronization source of the terminal equipment changes;

In some embodiments, the communication unit 510 is further configured to:

a first radio resource control, RRC, signaling is received, the first RRC signaling including the first information.

In some embodiments, the first RRC signaling includes at least one of:

In some embodiments, the communication unit 510 is further configured to:

Receiving a second RRC signaling, wherein the second RRC signaling is used for notifying the terminal equipment that the first information is stored;

An information request message is sent, wherein the information request message is used for notifying the terminal equipment to report the first information;

An information response message is received, the information response message including the first information.

In some embodiments, the network device further comprises:

and the processing unit is used for determining the target side uplink synchronous configuration of the terminal equipment according to the first information.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 500 are respectively for implementing the corresponding flow of the network device in the method 200 shown in fig. 3, which is not described herein for brevity.

Fig. 6 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. The communication device 600 shown in fig. 6 comprises a processor 610, from which the processor 610 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 6, the communication device 600 may also include a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the method in an embodiment of the application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, as shown in fig. 6, the communication device 600 may further include a transceiver 630, and 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.

The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.

Optionally, the communication device 600 may be specifically a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method according to the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 600 may be specifically a terminal device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 7 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 700 shown in fig. 7 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 7, chip 700 may also include memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the method in an embodiment of the application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, the chip 700 may also 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.

Optionally, 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.

Optionally, the chip 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, which is not described herein for brevity.

Optionally, the chip may be applied to a terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 8 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in fig. 8, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be configured to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The Processor may be a general purpose Processor, a digital signal Processor (DIGITAL SIGNAL Processor, DSP), an Application SPECIFIC INTEGRATED Circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically 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.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be a 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 random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDR SDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and Direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be appreciated that the above memory is exemplary and not limiting, and for example, the memory in the embodiments of the present application may be static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous connection dynamic random access memory (SYNCH LINK DRAM, SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment 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 embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment 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 embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a terminal device in the embodiment 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 terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative 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 present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, 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 according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

The terminal device transmits first information, which is related to side-uplink synchronization of the terminal device.
The method of claim 1, wherein the first information comprises at least one of:

indication information of a synchronization source used by the terminal equipment;

the terminal equipment reports the cause value of the first information;

Measuring related information;

information related to a sidelink transmission failure, wherein the sidelink transmission failure is caused by a sidelink asynchronization;

synchronizing source switching related information;

signal quality information between the terminal device and the synchronization source;

signal quality information between the terminal device and the network device.
The method according to claim 2, wherein the indication information of the synchronization source is identification information of the synchronization source.
A method according to claim 2 or 3, wherein the reason value for the terminal device reporting the first information comprises at least one of:

the synchronization source of the terminal equipment changes;

The side transmission of the terminal equipment fails, wherein the side transmission failure is caused by asynchronous side links;

the first parameter meets a first threshold, wherein the first parameter is a parameter related to the failure of the sidestream transmission of the terminal equipment;

And the second parameter meets a second threshold, wherein the second parameter is a parameter related to synchronous source switching of the terminal equipment.
The method of claim 4, wherein the first parameter comprises at least one of:

The times of the failure of the terminal equipment to execute the lateral transmission in unit time;

In unit time, the average value of times that the terminal equipment fails to execute the lateral transmission is obtained;

In unit time, the number of times of the terminal equipment executing the lateral transmission failure is larger than the proportion of a third threshold;

and the terminal equipment executes the time interval of failure of the adjacent two sidestream transmissions.
The method of claim 4 or 5, wherein the second parameter comprises at least one of:

The number of times of synchronous source switching executed by the terminal equipment in unit time;

the average value of the times of the synchronous source switching executed by the terminal equipment in unit time;

In unit time, the number of times of executing synchronous source switching by the terminal equipment is larger than the proportion of the fourth threshold;

And the terminal equipment executes the time interval of two adjacent synchronous source switching.
The method according to any of claims 2-6, wherein the measurement related information comprises at least one of:

the terminal equipment executes the measured time information;

The terminal device performs measured location information.
The method according to any of claims 2-7, wherein the sidelink transmission failure related information comprises at least one of:

the terminal equipment executes time information of failure of lateral transmission;

The terminal equipment executes position information of failure of lateral transmission;

the terminal equipment executes parameter information of failure of lateral transmission;

signal quality information of a side uplink in which a side transmission failure occurs.
The method of claim 8, wherein the parameter information of the terminal device performing the sidelink transmission failure includes at least one of:

The times of the failure of the terminal equipment to execute the lateral transmission in unit time;

In unit time, the average value of times that the terminal equipment fails to execute the lateral transmission is obtained;

In unit time, the number of times of the terminal equipment executing the lateral transmission failure is larger than the proportion of a third threshold;

and the terminal equipment executes the time interval of failure of the adjacent two sidestream transmissions.
The method according to any of claims 2-9, wherein the synchronization source handover related information comprises at least one of:

The terminal equipment executes time information of synchronous source switching;

the terminal equipment executes the position information of the synchronous source switching;

and the terminal equipment executes parameter information of synchronous source switching.
The method according to claim 10, wherein the parameter information of the terminal device performing the synchronization source handover comprises at least one of:

The number of times of synchronous source switching executed by the terminal equipment in unit time;

the average value of the times of the synchronous source switching executed by the terminal equipment in unit time;

In unit time, the number of times of executing synchronous source switching by the terminal equipment is larger than the proportion of the fourth threshold;

And the terminal equipment executes the time interval of two adjacent synchronous source switching.
The method according to any of claims 1-11, wherein the terminal device sends the first information comprising:

the terminal device sends the first information when a first condition is met, wherein the first condition comprises at least one of the following:

the synchronization source of the terminal equipment changes;

The side transmission of the terminal equipment fails, wherein the side transmission failure is caused by asynchronous side links;

the first parameter meets a first threshold, wherein the first parameter is a parameter related to the failure of the sidestream transmission of the terminal equipment;

And the second parameter meets a second threshold, wherein the second parameter is a parameter related to synchronous source switching of the terminal equipment.
The method according to any of claims 1-12, wherein the terminal device sends the first information comprising:

The terminal device sends a first radio resource control, RRC, signaling, the first RRC signaling including the first information.
The method of claim 13, wherein the first RRC signaling includes at least one of:

Uplink information transfer signaling ulinfo transfer, sidelink user information signaling SidelinkUEInformation, and user assistance information signaling UEAssistanceInformation.
The method according to any of claims 1-12, wherein the terminal device sends the first information comprising:

The terminal equipment sends a second RRC signaling, wherein the second RRC signaling is used for informing the terminal equipment that the first information is stored;

the terminal equipment receives an information request message, wherein the information request message is used for notifying the terminal equipment to report the first information;

The terminal device sends an information response message, wherein the information response message comprises the first information.
A method of wireless communication, comprising:

The network device receives first information sent by the terminal device, wherein the first information is related to side uplink synchronization of the terminal device.
The method of claim 16, wherein the first information comprises at least one of:

indication information of a synchronization source used by the terminal equipment;

the terminal equipment reports the cause value of the first information;

Measuring related information;

information related to a sidelink transmission failure, wherein the sidelink transmission failure is caused by a sidelink asynchronization;

synchronizing source switching related information;

signal quality information between the terminal device and the synchronization source;

signal quality information between the terminal device and the network device.
The method of claim 17, wherein the indication information of the synchronization source is identification information of the synchronization source.
The method according to claim 17 or 18, wherein the reason value for reporting the first information by the terminal device comprises at least one of:

the synchronization source of the terminal equipment changes;

The side transmission of the terminal equipment fails, wherein the side transmission failure is caused by asynchronous side links;

the first parameter meets a first threshold, wherein the first parameter is a parameter related to the failure of the sidestream transmission of the terminal equipment;

And the second parameter meets a second threshold, wherein the second parameter is a parameter related to synchronous source switching of the terminal equipment.
The method of claim 19, wherein the first parameter comprises at least one of:

The times of the failure of the terminal equipment to execute the lateral transmission in unit time;

In unit time, the average value of times that the terminal equipment fails to execute the lateral transmission is obtained;

In unit time, the number of times of the terminal equipment executing the lateral transmission failure is larger than the proportion of a third threshold;

and the terminal equipment executes the time interval of failure of the adjacent two sidestream transmissions.
The method of claim 19 or 20, wherein the second parameter comprises at least one of:

The number of times of synchronous source switching executed by the terminal equipment in unit time;

the average value of the times of the synchronous source switching executed by the terminal equipment in unit time;

In unit time, the number of times of executing synchronous source switching by the terminal equipment is larger than the proportion of the fourth threshold;

And the terminal equipment executes the time interval of two adjacent synchronous source switching.
The method according to any of claims 17-21, wherein the measurement related information comprises at least one of:

the terminal equipment executes the measured time information;

The terminal device performs measured location information.
The method according to any of claims 17-22, wherein the sidelink transmission failure related information comprises at least one of:

the terminal equipment executes time information of failure of lateral transmission;

The terminal equipment executes position information of failure of lateral transmission;

the terminal equipment executes parameter information of failure of lateral transmission;

signal quality information of a side uplink in which a side transmission failure occurs.
The method of claim 23, wherein the parameter information of the terminal device performing the sidelink transmission failure includes at least one of:

The times of the failure of the terminal equipment to execute the lateral transmission in unit time;

In unit time, the average value of times that the terminal equipment fails to execute the lateral transmission is obtained;

In unit time, the number of times of the terminal equipment executing the lateral transmission failure is larger than the proportion of a third threshold;

and the terminal equipment executes the time interval of failure of the adjacent two sidestream transmissions.
The method according to any of claims 17-24, wherein the synchronization source handover related information comprises at least one of:

The terminal equipment executes time information of synchronous source switching;

the terminal equipment executes the position information of the synchronous source switching;

and the terminal equipment executes parameter information of synchronous source switching.
The method according to claim 25, wherein the parameter information of the terminal device performing the synchronization source handover comprises at least one of:

The number of times of synchronous source switching executed by the terminal equipment in unit time;

the average value of the times of the synchronous source switching executed by the terminal equipment in unit time;

In unit time, the number of times of executing synchronous source switching by the terminal equipment is larger than the proportion of the fourth threshold;

And the terminal equipment executes the time interval of two adjacent synchronous source switching.
The method according to any of claims 16-26, wherein the network device receiving the first information sent by the terminal device comprises:

The network device receives the first information sent by the terminal device when a first condition is met, wherein the first condition comprises at least one of the following:

the synchronization source of the terminal equipment changes;

The side transmission of the terminal equipment fails, wherein the side transmission failure is caused by asynchronous side links;

the first parameter meets a first threshold, wherein the first parameter is a parameter related to the failure of the sidestream transmission of the terminal equipment;

And the second parameter meets a second threshold, wherein the second parameter is a parameter related to synchronous source switching of the terminal equipment.
The method according to any of claims 16-27, wherein the network device receiving the first information sent by the terminal device comprises:

the network device receives a first radio resource control, RRC, signaling, the first RRC signaling including the first information.
The method of claim 28, wherein the first RRC signaling includes at least one of:

Uplink information transfer signaling ulinfo transfer, sidelink user information signaling SidelinkUEInformation, and user assistance information signaling UEAssistanceInformation.
The method according to any of claims 16-27, wherein the network device receiving the first information sent by the terminal device comprises:

the network equipment receives a second RRC signaling, wherein the second RRC signaling is used for notifying the terminal equipment that the first information is stored;

the network equipment sends an information request message, wherein the information request message is used for notifying the terminal equipment to report the first information;

the network device receives an information response message, the information response message including the first information.
The method according to any one of claims 16-30, further comprising:

and the network equipment determines the target side uplink synchronous configuration of the terminal equipment according to the first information.
A terminal device, comprising:

And the communication unit is used for sending first information, and the first information is related to side uplink synchronization of the terminal equipment.
A network device, comprising:

And the communication unit is used for receiving the first information sent by the terminal equipment, and the first information is related to side uplink synchronization of the terminal equipment.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method of any of claims 1 to 15.
A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 16 to 31.
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 15, or the method of any one of claims 16 to 31.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 15 or the method of any one of claims 16 to 31.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 15 or the method of any one of claims 16 to 31.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 15 or the method of any one of claims 16 to 31.