CN118104274A

CN118104274A - Wireless communication method and device, terminal equipment and network equipment

Info

Publication number: CN118104274A
Application number: CN202180103243.6A
Authority: CN
Inventors: 范江胜; 冷冰雪; 刘洋
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2024-05-28
Also published as: WO2023115356A1

Abstract

The embodiment of the application provides a wireless communication method and device, terminal equipment and network equipment, wherein the method comprises the following steps: the terminal equipment sends a first message to the network equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.

Description

Wireless communication method and device, terminal equipment and network equipment

Technical Field

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

Background

The V2X (namely NR V2X) based on New Radio, NR further discusses the terminal relay communication technology based on the V2X (namely LTE V2X) based on LTE, and the core idea is that when terminal equipment cannot directly communicate with network equipment through an air interface, the terminal equipment indirectly completes communication with the network equipment through relay terminal equipment meeting the conditions, the network communication range is enlarged, and the user experience is improved, but on the other hand, the participation of the relay terminal complicates the switching control of the terminal, and the potential influence of a relay scene on switching is not considered by the existing switching optimization strategy.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and device, terminal equipment and network equipment.

The wireless communication method provided by the embodiment of the application comprises the following steps:

The terminal equipment sends a first message to the network equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.

the network equipment receives a first message sent by the terminal equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.

The wireless communication device provided by the embodiment of the application comprises:

The first sending module is configured to send a first message to the network device, where the first message includes first data, where the first data is data related to a handover failure, the handover failure includes a handover procedure failure or a radio link failure related to a handover, and the handover is related to the relay terminal device.

The second receiving module is configured to receive a first message sent by the terminal equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.

The communication device provided by the embodiment of the application can be the terminal device in the scheme or the network device in the scheme, and the communication device comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the wireless communication method.

The chip provided by the embodiment of the application is used for realizing the wireless communication method.

Specifically, the chip includes: and a processor for calling and running the computer program from the memory, so that the device mounted with the chip executes the wireless communication method.

The embodiment of the application provides a computer readable storage medium for storing a computer program, which causes a computer to execute the wireless communication method.

The computer program product provided by the embodiment of the application comprises computer program instructions, wherein the computer program instructions enable a computer to execute the wireless communication method.

The computer program provided by the embodiment of the application, when running on a computer, causes the computer to execute the wireless communication method.

By the technical scheme, under the condition that the switching related to the relay terminal equipment fails, the terminal equipment sends the data related to the switching failure of the relay terminal equipment to the network equipment, so that the network equipment optimizes the switching related to the relay terminal equipment and improves the service continuity related to the switching of the relay terminal equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an application scenario according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an application scenario according to an embodiment of the present application;

fig. 4 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

Fig. 5A is an alternative schematic diagram of a switching scenario provided by an embodiment of the present application;

fig. 5B is an alternative schematic diagram of a switching scenario provided by an embodiment of the present application;

fig. 5C is an alternative schematic diagram of a switching scenario provided by an embodiment of the present application;

fig. 6 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 7 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 8 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 9 is an alternative schematic block diagram of a wireless communication device provided by an embodiment of the present application;

Fig. 10 is an alternative schematic block diagram of a wireless communication device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 12 is a schematic block diagram of a chip of an embodiment of the application;

Fig. 13 is a schematic block diagram of a communication system provided in 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 based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

As shown in fig. 1, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

It should be understood that embodiments of the present application are illustrated by way of example only with respect to communication system 100, and embodiments of the present application are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), internet of things (Internet of Things, ioT) systems, narrowband internet of things (Narrow Band Internet of Things, NB-IoT) systems, enhanced machine type communications (ENHANCED MACHINE-Type Communications, eMTC) systems, 5G communication systems (also known as New Radio (NR) communication systems), or future communication systems, etc.

Based on the communication system shown in fig. 1, as shown in fig. 2, the terminal device 110-1 establishes an indirect connection with the network device 120 through the terminal device 110-2. Wherein terminal device 110-1 and terminal device 110-2 are different terminal devices 110. Wherein D2D communication is performed between terminal device 110-1 and terminal device 110-2, terminal device 110-1 may be referred to as a Remote terminal device (UE), and terminal device may be referred to as a Relay (Relay) UE.

In the communication system 100 shown in fig. 1, the network device 120 may be an access network device in communication with the terminal device 110. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

Terminal device 110 may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handset, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handset 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 5G network or a terminal device in a future evolution network, etc.

The wireless communication system 100 may further comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (ACCESS AND Mobility Management Function, AMF), further e.g. an authentication server function (Authentication Server Function, AUSF), further e.g. a user plane function (User Plane Function, UPF), further e.g. a session management function (Session Management Function, SMF). Optionally, the Core network device 130 may also be a packet Core evolution (Evolved Packet Core, EPC) device of the LTE network, for example, a session management function+a data gateway (Session Management Function +core PACKET GATEWAY, SMF +pgw-C) device of the Core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form new network entities by dividing the functions of the core network, which is not limited in this embodiment of the present application.

Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.

For example, the terminal device establishes an air interface connection with the access network device through a Uu interface, and is used for transmitting user plane data and control plane signaling; the terminal equipment can establish control plane signaling connection with AMF through NG interface 1 (N1 for short); an access network device, such as a next generation radio access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network equipment can establish control plane signaling connection with AMF through NG interface 2 (N2 for short); the UPF can establish control plane signaling connection with the SMF through an NG interface 4 (N4 for short); the UPF can interact user plane data with the data network through an NG interface 6 (N6 for short); the AMF may establish a control plane signaling connection with the SMF through NG interface 11 (N11 for short); the SMF may establish a control plane signaling connection with the PCF via NG interface 7 (N7 for short).

Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited by the embodiment of the present application.

It should be noted that fig. 1 is only an exemplary system to which the present application is applicable, and of course, the method shown in the embodiment of the present application may be applicable to other systems. Furthermore, the terms "system" and "network" are often 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. It should also be understood that, in the embodiments of the present application, the "indication" 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. It should also be understood that "corresponding" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, may mean that there is an association between the two, and may also be a relationship between an instruction and an indicated, configured, or the like. It should also be understood that "predefined" or "predefined rules" mentioned in the embodiments of the present application may be implemented by pre-storing corresponding codes, tables or other manners in which related information may be indicated in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation thereof. Such as predefined may refer to what is defined in the protocol. It should be further understood that, in the embodiment of the present application, the "protocol" may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited by the present application.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description describes related technologies of the embodiments of the present application, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as alternatives, which all belong to the protection scope of the embodiments of the present application.

Remote UE and relay UE

When one UE has both external data network connection through a 5G network and proximity services (ProSe) capability, this UE may act as a relay UE, and the other ProSe-capable UE is a Remote (Remote) UE. AS shown in fig. 3, a Remote UE301 may establish a direct connection with a Relay UE302 through a PC5 interface, and establish a PDU session with a 5G network (including NG-RAN303 and 5GC 304) through the Relay UE302, and interact with an application server (Applation Service, AS) 305 of an external network through the established PDU session, where the Relay UE302 establishes a connection with the 5G network through a Uu interface, and the 5G network establishes a connection with the AS through an N6 interface.

As shown in fig. 3, a terminal 301 indirectly connected through a Relay terminal 302 and a 5G network is called a Remote terminal, that is, communication between the Remote terminal and a network device needs to be relayed through the Relay terminal.

As shown in fig. 3, the Relay terminal may act as a Relay for the Remote terminal to communicate with the network device, and the Relay terminal extends network signal coverage. Only terminals whose serving cell signal quality is within a threshold interval can be regarded as Relay terminals.

The handover scenario involving the relay terminal includes the following scenarios:

switching scenario one, indirect to direct (indirect to direct) switching

One terminal device switches from being indirectly connected to the network device through a relay terminal to being directly connected to the network device. The handover procedure is triggered by the network device.

Switching scenario two, direct to indirect (direct to indirect) switching

One terminal device switches from a direct connection with the network device to an indirect connection with the network device through the relay terminal. The handover procedure is triggered by the network device.

Switching scenario three, indirect to indirect (indirect to indirect) switching

One terminal device switches from being indirectly connected to the network device through the relay terminal 1 to being indirectly connected to the network device through the relay terminal 2. The handover procedure is triggered by the network device.

In the related art, there is no optimization for a handover procedure involving a relay terminal, and an optimization scheme for a handover of a terminal device connected with a network device cannot optimize a handover procedure involving a relay terminal.

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.

The wireless communication method provided by the embodiment of the application is applied to the terminal equipment, as shown in fig. 4, and comprises the following steps:

S401, the terminal equipment sends a first message to the network equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.

In the embodiment of the application, the terminal equipment records the first data and sends the first data to the network equipment. The first data is recorded data related to handover failure.

And the terminal equipment records the first data related to the handover failure under the condition of the handover failure.

The meaning of the handover failure in the embodiment of the application is any one of the following:

The terminal equipment successfully receives the switching configuration message sent by the network equipment, but cannot successfully access to the switching target cell (first meaning);

The terminal equipment successfully receives the switching configuration message sent by the network equipment, and the terminal equipment quickly generates radio link failure (second meaning) although the terminal equipment is successfully accessed to the switching target cell;

The network device cannot send the handover configuration message to the terminal device in time, which results in radio link failure of the terminal device (third meaning).

All three scenarios may be understood as handover failure, where the first meaning corresponds to the handover procedure failure, and the second meaning or the third meaning corresponds to the handover related radio link failure, and the embodiment of the present application does not limit the handover failure meaning.

Optionally, the handover scenario of the terminal device includes one of:

Switching scenario one indirect to direct switch

The terminal device switches from an indirect connection with the source network device through the relay terminal to a direct connection with the target network device.

In an example, as shown in fig. 5A, the coverage area of the base station 500 is shown as an area 510, and the displacement of the terminal device 501 is shown as 503, and when moving from outside the area 510 to inside the area 510, the indirect connection with the base station 500 through the relay terminal 502 is switched to the direct connection with the base station 500.

Switching scene two, direct to indirect switch

The terminal device switches from a direct connection with the source network device to an indirect connection with the target network device through the relay terminal.

In an example, as shown in fig. 5B, the coverage area of base station 500 is shown as area 510, and the displacement of terminal device 501 is shown as 504, switching from a direct connection with base station 500 to an indirect connection with base station 500 through relay terminal 502 when moving from within area 510 to outside area 510.

Switching scenario three, indirect to indirect switch

The terminal device switches from being indirectly connected with the source network device through the first relay terminal device to being indirectly connected with the target network device through the second relay terminal device.

In an example, as shown in fig. 5C, the coverage area of base station 500 is shown as area 510, and the displacement of terminal device 501 is shown as 505, switching from an indirect connection with base station 500 through relay terminal 502 to an indirect connection with base station 500 through relay terminal 506.

In the third switching scenario, the first relay terminal device and the second relay terminal device are different relay terminal devices.

Optionally, the source network device and the target network device are the same network device.

Optionally, the source network device and the target network device are different network devices.

In the embodiment of the application, the switching failure scene comprises:

a switching failure scene 1, wherein a switching timer is overtime and the terminal equipment does not successfully establish connection with the target network equipment;

a switching failure scene 2, wherein a switching timer is overtime and the terminal equipment does not successfully establish connection with the target relay terminal equipment;

A switching failure scene 3, wherein a switching timer is overtime and the terminal equipment does not successfully establish connection with the target network equipment through the target relay terminal equipment;

A handover failure scene 4, wherein a radio link between the terminal equipment and the source network equipment fails;

the switching failure scene 5, the wireless link between the terminal equipment and the source relay terminal equipment fails, and the source relay terminal is used for indirectly connecting the terminal equipment and the source network equipment;

A handover failure scene 6, wherein a radio link between the source relay terminal equipment and the source network equipment fails;

a handover failure scenario 7, wherein after the terminal device performs the handover process successfully, a radio link between the terminal device and the target network device fails;

A handover failure scenario 8, wherein after the terminal device performs a handover procedure successfully, a radio link between the terminal device and a target relay terminal device fails, and the target relay terminal device is used for indirectly connecting the terminal device with a target network device;

And 9, after the terminal equipment successfully executes the switching process, the wireless link between the target relay terminal equipment and the target network equipment fails.

In the embodiment of the present application, the time of the handover failure includes at least one of the following:

The method comprises the steps that firstly, before a terminal device does not execute a switching process;

the second time is when the terminal equipment executes the switching process;

and after the terminal equipment executes the switching process.

And the switching failure scene 1 to the switching failure scene 3 are failure of the switching process of the terminal equipment. At this time, the time of the handover failure is when the terminal device performs the handover, and the connection with the target network device fails.

And for the switching failure scene 4 to the switching failure scene 6, switching failure caused by too late switching of the terminal equipment is caused. At this time, the terminal device does not execute the handover procedure, and the time of the handover failure is that the radio link failure occurs with the source network device before the terminal device executes the handover procedure.

For the handover failure scenario 7 to the handover failure scenario 9, it may be understood that, within a period of time after the handover procedure of the terminal device is successfully executed, the radio link failure occurs between the terminal device and the target network device due to the movement of the terminal device. The handover failure scenario 7 to the handover failure scenario 9 may be handover failure caused by premature handover of the terminal device or handover error, including handover to a wrong cell or handover to a wrong relay terminal device. At this time, the terminal device may successfully execute the handover procedure, and the time of the handover failure is that after the terminal device executes the handover procedure, a radio link failure occurs with the target network device.

In the embodiment of the present application, the terminal device may send the first data to the network device, where the network device may be a source network device that generates a handover failure, a target network device that generates a handover failure, or a third network device other than the source network device and the target network device that generate a handover failure.

Optionally, the terminal device records the first data when the handover fails, and sends the first data to the source network device through a subsequent data reporting process, where the handover failure includes a failure occurring when the handover process is not performed, a failure occurring when the handover process is performed, or a failure occurring after the handover process is performed.

Optionally, after the handover failure, the terminal device performs a radio connection reestablishment procedure.

In the case that the terminal device performs indirect wireless connection reestablishment through the relay terminal device, the relay terminal device that the terminal device performs wireless connection reestablishment may be a source relay terminal device or a target relay terminal device, or a relay terminal device other than the source relay terminal device and the target relay terminal device.

In the case that the terminal device performs direct wireless connection reestablishment through the network device, the network device in which the terminal device performs wireless connection reestablishment may be a source network device or a target network device, or a network device other than the source network device and the network device.

In the wireless communication method provided by the embodiment of the application, under the condition of switching failure related to the relay terminal equipment, the terminal equipment sends the recorded data related to the switching failure of the relay terminal equipment to the network equipment through the recorded data reporting flow, so that the network equipment optimizes the switching process related to the relay terminal equipment and improves the service continuity related to the switching of the relay terminal equipment.

The wireless communication method provided by the embodiment of the application is applied to network equipment, and as shown in fig. 6, the method comprises the following steps:

s601, the network equipment receives a first message sent by the terminal equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.

Optionally, after receiving the first message sent by the terminal device, the network device analyzes the first message to obtain first data, and in one implementation manner, the network device may directly perform related optimization operation based on the first data; in another implementation manner, the network device may first store the successfully received first data, and perform the joint optimization operation after the number of the first data samples to be collected reaches the expectation, where the optimization objective may be any one of the following: optimizing switching trigger time, determining reasons of switching failure, adjusting relay terminal selection threshold, adjusting relay terminal judgment threshold or adjusting switching judgment threshold. The core goal of the switching optimization is to improve the service continuity of the switching process of the terminal equipment and reduce the probability of service interruption.

The relay terminal selection threshold is used for the remote terminal equipment to judge the proper relay terminal equipment, and the remote terminal equipment can only select one relay terminal from the relay terminals with the measurement results larger than the relay terminal selection threshold as the connected relay terminal.

The relay terminal judging threshold is used for judging whether the terminal equipment can be used as relay terminal equipment connected with the remote terminal equipment or not, and normally, the service cell measurement result measured by one terminal equipment can be considered to be in accordance with the condition of the relay terminal equipment only when the service cell measurement result is required to be simultaneously more than the threshold 1 and less than the threshold 2, the relay terminal judging threshold comprises the threshold 1 and the threshold 2, and the terminal equipment obtains the values of the threshold 1 and the threshold 2 through the network equipment.

In the embodiment of the present application, the network device may receive the first data sent by the terminal device, where the network device may be a source network device that generates a handover failure, a target network device that generates a handover failure, or a third network device other than the source network device and the target network device that generate a handover failure. The switching failure in the embodiment of the application means any one of the following:

All three scenarios can be understood as handover failure, wherein the first meaning corresponds to the handover failure, the second meaning or the third meaning corresponds to the handover related radio link failure, and the present application is not limited to the handover failure meaning. .

Optionally, the handover scenario of the terminal device includes one of:

Switching scenario one indirect to direct switch

Switching scene two, direct to indirect switch

Switching scenario three, indirect to indirect switch

In the embodiment of the application, the switching failure scene comprises:

the second time is when the terminal equipment executes the switching process;

and after the terminal equipment executes the switching process.

And for the switching failure scene 4 to the switching failure scene 6, switching failure caused by too late switching of the terminal equipment is caused. At this time, the terminal device does not execute the handover procedure, and the time of the handover failure is that the radio link failure occurs with the source network device before the terminal device executes the handover procedure. For the handover failure scenario 7 to the handover failure scenario 9, it may be understood that, within a period of time after the handover procedure of the terminal device is successfully executed, the radio link failure occurs between the terminal device and the target network device due to the movement of the terminal device. The handover failure scenario 7 to the handover failure scenario 9 may be handover failure caused by premature handover of the terminal device or handover error, wherein the handover error includes handover to a wrong cell or handover to a wrong relay terminal device. At this time, the terminal device may successfully execute the handover procedure, and the time of the handover failure is that after the terminal device executes the handover procedure, a radio link failure occurs with the target network device.

Optionally, after the handover failure, the terminal device performs a radio connection reestablishing procedure with the network device. The network device performing the wireless connection reestablishment may be a source network device, a target network device, or other network devices except the source network device and the target network device.

According to the wireless communication method provided by the embodiment of the application, the network equipment receives the data of the terminal equipment, which relates to the switching failure of the relay terminal equipment, so that the network equipment optimizes the switching of the relay terminal equipment and improves the service continuity of the switching of the relay terminal equipment.

The communication method applied to the wireless communication system including the terminal device and the network device provided by the embodiment of the application, as shown in fig. 7, includes:

S701, the terminal equipment sends a first message to the network equipment.

The first message includes first data, where the first data is data related to a handover failure, the handover failure includes a handover procedure failure or a handover related radio link failure, and the handover is related to a relay terminal device.

The description of the terminal device may refer to the description of the wireless communication method shown in fig. 4 about the terminal device, and the description of the network device may refer to the description of the wireless communication method shown in fig. 6 about the network device, which is not repeated herein.

In some embodiments, the first data includes at least one of the following data items:

a data item 1, a switching scene identifier; the switching scene identifier is used for indicating the switching scene of the terminal equipment; 1 to 9

A data item 2, a first time length, wherein the first time length is a time length when the terminal equipment starts to execute switching to a connection failure;

the method comprises the steps of a data item 3 and reason information, wherein the reason information is used for indicating the reason of handover failure;

The method comprises the steps of a data item 4 and a first equipment identifier, wherein the first equipment identifier indicates first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment with source network equipment;

The data item 5, a second equipment identifier, wherein the second equipment identifier indicates a second relay terminal equipment, and the second relay terminal equipment is relay terminal equipment with connection failure;

A data item 6, a third device identifier, wherein the third device identifier indicates a third relay terminal device, and the third relay terminal device is a relay terminal device connected in a wireless link reestablishment process;

A data item 7, first measurement information, wherein the first measurement information is a measurement result of a cell signal measured by the terminal equipment under the condition of handover failure;

a data item 8, and second measurement information, where the second measurement information is a measurement result of the first relay terminal device measured by the terminal device under the condition of handover failure;

The data item 9 and third measurement information, wherein the third measurement information is a measurement result of a fourth relay terminal device measured by the terminal device under the condition of switching failure, and the fourth relay terminal device is a target relay terminal device in the switching process;

a data item 10, first indication information, where the first indication information is used to indicate whether the second measurement information is higher than a relay terminal selection threshold;

a data item 11, second indication information, where the second indication information is used to indicate whether the third measurement information is higher than the relay terminal selection threshold;

the data item 12 and third indication information, where the third indication information is used to indicate that a first link fails in a radio link after the terminal device establishes a connection with a target network device through the fourth relay terminal device, and the first link is a link between the fourth relay terminal device and the target network device;

the data item 13 and fourth indication information, where the fourth indication information is used to indicate that the terminal device cannot find any third relay terminal device that meets a relay terminal selection threshold condition in a connection reestablishment process;

Data item 14, fourth measurement information, the fourth measurement information being a measurement result of a cell signal measured by the fourth relay terminal device in case of radio link failure of the first link.

In an example, taking the handover failure scenario as handover failure scenario 1 as an example, the first data includes at least one of the following data items:

The method comprises the steps of switching scene identification, first time length, reason information, first equipment identification, third equipment identification, first measurement information, second measurement information, first indication information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 2, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, first time length, reason information, first equipment identification, second equipment identification, third equipment identification, first measurement information, second measurement information, third measurement information, first indication information, second indication information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 3, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, first time length, reason information, first equipment identification, second equipment identification, third equipment identification, first measurement information, second measurement information, third measurement information, first indication information, second indication information, third indication information, fourth indication information and fourth measurement information.

In an example, the handover failure scenario is handover failure scenario 4, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, reason information, third equipment identification, first measurement information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 5, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, reason information, first equipment identification, second equipment identification, third equipment identification, first measurement information, second measurement information, first indication information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 6, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, reason information, first equipment identification, second equipment identification, third equipment identification, first measurement information, second measurement information, first indication information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 7, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, first time length, reason information, first equipment identification, third equipment identification, first measurement information, second measurement information, first indication information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 8, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, first time length, reason information, first equipment identification, second equipment identification, third equipment identification, first measurement information, second measurement information, third measurement information, first indication information, second indication information and fourth indication information.

In an example, the handover failure scenario is handover failure scenario 9, and the first data includes at least one of the following data items: the method comprises the steps of switching scene identification, first time length, reason information, first equipment identification, second equipment identification, third equipment identification, first measurement information, second measurement information, third measurement information, first indication information, second indication information, third indication information, fourth indication information and fourth measurement information.

For data item 1, a switching scenario is indicated, wherein different switching scenario identifications are used to indicate different switching scenarios. The embodiment of the application does not limit the representation method of the switch scene identification.

Optionally, the switching scenario includes at least one of:

The first switching scenario is that the terminal equipment is switched from being indirectly connected with the source network equipment through the source relay terminal equipment to being directly connected with the target network equipment;

Switching the second scene, wherein the terminal equipment is switched from direct connection with the source network equipment to indirect connection with the target network equipment through the relay terminal equipment;

And switching the third scene, namely switching the terminal equipment from indirect connection with the source network equipment through the source relay terminal equipment to indirect connection with the target network equipment through the target relay terminal equipment.

The network equipment can identify which switching scene has a problem based on the data item 1, and is beneficial to optimizing algorithm design according to the scene.

For data item 2, the first time period is used to indicate the time period during which the terminal device starts to perform a handover to determine that a connection failure procedure has occurred.

The initiation of the handover by the terminal device may be understood as an attempt by the terminal device to establish a connection with the target network device. The scenario in which the terminal device establishes a connection with the target network device may include:

Scene 1, directly establishing connection between terminal equipment and target network equipment through an air interface;

and the scene 2, the terminal equipment and the target network equipment indirectly establish connection through the target relay terminal equipment.

Optionally, the terminal device attempting to establish the connection comprises the terminal device initiating a random access procedure to the target network device or sending a reconfiguration complete message.

Optionally, the first duration includes one of the following meanings for the duration that the terminal device starts to perform the handover to the connection failure:

The terminal equipment starts to execute switching to the time length of the overtime of a switching timer, and the switching timer is used for controlling the switching process;

The terminal equipment starts to execute switching to a second link, wherein the second link is a wireless link between the terminal equipment and target network equipment after successful switching;

The terminal equipment starts to execute switching to a time length when a radio link failure occurs in a third link, wherein the third link is a radio link between the terminal equipment after switching is successful and a fourth relay terminal, and the fourth relay terminal equipment is target relay terminal equipment in the switching process;

And the terminal equipment starts to execute switching to a time length when the radio link failure occurs in the first link, wherein the first link is a link between the fourth relay terminal equipment and the target network equipment after the terminal equipment is successfully switched.

For the handover failure scenario 1 to the handover failure scenario 3, the connection failure time is the handover timer timeout time. Optionally, the switching timer is T304.

The network device may configure the handover timer to the terminal device through a configuration message sent to the terminal device, where the configuration message carries the handover timer. If the terminal equipment can not successfully establish connection with the target network equipment before the switching timer is overtime, the switching is considered to be failed or the connection is considered to be failed.

Optionally, the configuration message is a synchronous reconfiguration message (which may also be referred to as a handover message).

For the handover failure scenario 7, the terminal device successfully accesses to the target network device, but the wireless link failure occurs in the terminal device due to unstable link or poor link signal quality between the terminal device and the target network device, and in the handover failure scenario, the connection failure time is the wireless link failure time of the link between the terminal device and the target network device.

For the handover failure scenario 8, the terminal device successfully accesses to the target network device through the target relay terminal device, but the wireless link failure occurs in the terminal device due to unstable link or poor link signal quality between the terminal device and the target relay terminal device, and in the handover failure scenario, the connection failure time is the wireless link failure time of the link between the terminal device and the target relay terminal device.

For the handover failure scenario 9, the terminal device successfully accesses to the target network device through the target relay terminal device, but the terminal device generates radio link failure due to unstable link or poor link signal quality between the target relay terminal and the target network device. At this time, the wireless link between the terminal device and the target relay terminal device is still better, but because the link between the target relay terminal device and the target network device is broken, the wireless connection between the terminal device and the target network device fails, so that the link between the target relay terminal device and the target network device breaks, which results in the wireless link failure between the terminal device and the target network device, and the situation that the terminal device fails can be understood as well. In the handover failure scenario 9, the connection failure time is a time when the terminal device receives a link failure notification sent by the relay terminal, where the link failure notification is used to notify that a radio link between the relay terminal device and the target network device has a radio link failure.

The data item 2 records the time length information that the terminal equipment starts to execute the switching to determine that the connection failure process is going to occur, which is beneficial for the network equipment to judge whether the connection failure needs to be optimized or not, for example, if the first time length, i.e. the time length 1, is long, the connection failure and the switching relationship is not large (the connection failure occurs only after the switching is long), and the optimization of the switching parameters may not be needed.

For data item 3, the cause information indicates the cause of the handover failure.

Optionally, the reason for handover failure indicated by the reason information includes one of:

The switching timer times out;

Radio link failure associated with handover.

And when the switching failure scene of the terminal equipment is any one of switching duration scenes from switching failure scene 1 to switching failure scene 3, the switching failure reason indicated by the reason information is the timeout of the switching timer.

The failure scene of the terminal equipment is any one of the switching failure scenes from the switching failure scene 4 to the switching failure scene 9, and the switching failure cause indicated by the reason information is the radio link failure related to the switching.

In some embodiments, the cause of the handover-related radio link failure includes at least one of:

the radio link failure condition 1, the occurrence of radio link failure of a fourth link, wherein the fourth link is a radio link between the terminal equipment and the source network equipment;

the radio link failure condition 2, the radio link failure occurs in a fifth link, wherein the fifth link is a radio link between the terminal equipment and a first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment and the source network equipment;

A radio link failure condition 3, wherein a radio link failure occurs in a sixth link, and the sixth link is a radio link between the first relay terminal device and the source network device;

the radio link failure condition 4, after the terminal equipment successfully executes the switching process, the second link fails, and the second link is a radio link between the terminal equipment and the target network equipment after the terminal equipment successfully switches;

A radio link failure condition 5, after the terminal device performs a handover process successfully, a radio link failure occurs in a third link, where the third link is a radio link between the terminal device and a fourth relay terminal, and the fourth relay terminal is used for indirectly connecting with the target network device after the terminal device is successfully handed over;

And under the condition of wireless link failure 6, after the terminal equipment successfully executes the switching process, the first link fails, and the first link is a wireless link between the fourth relay terminal equipment and the target network equipment.

For radio link failure scenario 1, handover failure scenario 4 is corresponding.

For the radio link failure scenario 2, corresponding to the handover failure scenario 5, the fifth link is a radio link between the terminal device and the source relay terminal device, which may also be referred to as a first relay terminal device.

And for the radio link failure scene 3, corresponding to the handover failure scene 6, the sixth link is a radio link between the source relay terminal equipment and the source network equipment.

For radio link failure scenario 4, handover failure scenario 7 is corresponding.

For the radio link failure scenario 5, corresponding to the handover failure scenario 8, the third link is a radio link between the terminal device and the target relay terminal device, which may also be referred to as a fourth relay terminal device.

For the radio link failure scenario 6, corresponding to the handover failure scenario 9, the first link is a radio link between the target relay terminal device and the target network device.

In some embodiments, in the event of a radio link failure of the first link, the method further comprises:

and the terminal equipment receives failure indication information sent by the fourth relay terminal equipment, wherein the failure indication information is used for indicating that the first link fails in a radio link.

After the terminal equipment establishes connection with the target network equipment based on the target relay terminal equipment, the wireless connection between the target relay terminal and the target network equipment is disconnected, and at the moment, the target relay terminal equipment sends a link failure notification to the terminal equipment, wherein the link failure notification carries failure indication information so as to indicate that a first link of the terminal equipment has wireless link failure. And the terminal equipment determines that the first link fails in the radio link based on the received failure indication information, and at the moment, determines that the switching fails.

The data item 3 records the reason information of the handover failure, and the network equipment can determine finer failure scenes by combining the data item 3 and the data item 1, so that the network equipment is convenient to optimize for subdivision scenes separately.

For data item 4, the first device identification indicates the source relay terminal device. Optionally, the first device is marked as an L2 identifier or an L3 identifier or a non-access layer identifier of the source relay terminal device. Here, the source relay terminal device may also be referred to as a first relay terminal device.

When the terminal device fails in the handover procedure or the identification information of the connection source relay terminal device before the radio link failure occurs, the first data includes the data item 4.

For the data item 5, the second device identifier indicates the relay terminal device in which the connection failure occurred, which may also be referred to as a second relay terminal device.

Optionally, the relay terminal device with the connection failure is a source relay terminal device, and at this time, the terminal device has a handover failure, that is, a radio link failure related to the handover, without performing a handover procedure.

In an example, the handover failure scenario is a handover failure scenario 5 or a handover failure scenario 6, and the relay terminal device that has failed in connection is a source relay terminal device.

Optionally, the relay terminal device with the connection failure is a target relay terminal device, and at this time, the terminal device performs the handover process successfully and then the handover failure occurs.

In an example, the handover failure scenario is handover failure scenario 2, handover failure scenario 3, handover failure scenario 8, or handover failure scenario 9, and the relay terminal device that has failed the connection is the target relay terminal device.

Optionally, the second device identifier is an L2 identifier or an L3 identifier or a non-access layer identifier of the second relay terminal device.

For data item 6, the third device identification indicates the relay terminal device to which the wireless connection reestablishment procedure is connected, which may also be referred to as third relay terminal device. Wherein, in case the terminal device performs the wireless connection reestablishment and performs the wireless connection reestablishment with the relay terminal device, the first data includes the data item 6.

The third relay terminal device may include a source relay terminal device, a target relay terminal device, or a relay terminal device other than the source relay terminal device and the target relay terminal device.

Optionally, the third device identifier is an L2 identifier or an L3 identifier or a non-access layer identifier of the third relay terminal device.

The network device can determine that the handover is too early or too late or a handover error based on the combination of data items 4 and 6.

In an example, when a relay terminal device that has failed in connection is a handover target relay terminal device and the terminal device initiates a connection reestablishment procedure through a source relay terminal device or a source cell, the reason for the handover failure may be that the handover is premature.

In an example, when a relay terminal device that has failed in connection is a source relay terminal device and the terminal device initiates a connection reestablishment procedure through a handover target relay terminal device prepared by network device planning or a handover target cell prepared by network device planning, the reason for the handover failure may be that the handover is too late.

In an example, if the relay terminal device used in the reestablishing process is different from the source relay terminal device and the target relay terminal device, the reason for the handover failure may be a handover error.

The first measurement information of the data item 7 is the measurement result of the cell signal obtained by the terminal device measurement when the handover fails. The first measurement information may include: measurement results of the serving cell and/or at least one neighbor cell.

Optionally, the measurement result includes at least one of reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP), reference signal received Quality (REFERENCE SIGNAL RECEIVING Quality, RSRQ), signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR).

For the second measurement information in the data item 8, the terminal device measures the obtained measurement result of the source relay terminal device when the handover fails.

Optionally, the measurement result indicated by the second measurement information includes at least one of RSRP, RSRQ, and SINR.

For the third measurement information in the data item 9, the terminal device measures the obtained measurement result of the target relay terminal device at the time of handover failure.

Optionally, the measurement result indicated by the third measurement information includes at least one of RSRP, RSRQ, and SINR.

The network device can determine the cause of the connection failure based on the data items 7 to 9, for example, the measurement result of the target relay terminal device is poor when the connection fails, which means that the network device may be switched too early.

For the data item 10, the first indication information indicates whether the measurement result of the source relay terminal device measured at the time of the terminal device handover failure is higher than the relay terminal selection threshold.

For the data item 11, the second indication information indicates whether or not the measurement result of the target relay terminal device measured at the time of the terminal device handover failure is higher than the relay terminal selection threshold.

For the relay terminal selection threshold, the relay terminal selection threshold is configured as a threshold that is configured by the network device to the terminal device and used for judging whether the relay terminal device is suitable for serving as a relay device of the remote terminal device, if one remote terminal device monitors signals of a plurality of relay terminals at the same time, the remote terminal device only selects a relay terminal with a signal measurement result larger than the relay terminal selection threshold from the measured relay terminal devices as the relay device of the remote terminal device.

The data item 10 and the data item 11 record the relation between the measurement result of the relay terminal device and the relay terminal selection threshold. In one implementation, the network device determines a cause of the connection failure based on the data item 10 and the data item 11; in another implementation, the network device optimizes the relay terminal selection threshold based on the data item 10 and the data item 11,

For the data item 13, any relay terminal device meeting the relay terminal selection threshold cannot be found in the reestablishment process after the handover process failure or the radio link failure of the terminal device, which may also be called as a relay terminal device (No suitable relay UE found during connection reestablishment procedure) which is not suitable for the radio connection reestablishment process.

In case the terminal device performs a radio connection re-establishment and no suitable relay terminal device for performing a radio connection re-establishment is found, the data item 13 is included in the first data.

The data item 13 records that any relay terminal device meeting the relay terminal selection threshold cannot be found in the handover process failure of the terminal device or the reestablishment process after the radio link failure, possibly because the relay terminal meeting the condition cannot be found due to the fact that the relay terminal selection threshold is too high, so that the network device can optimize the relay terminal selection threshold based on the data item 13.

And the fourth measurement information of the data item 14 represents a cell signal measurement result obtained by measurement of the target relay terminal device when the wireless link between the target relay terminal device and the target network device fails after the terminal device establishes connection with the target network device through the target relay terminal device.

The measurement result indicated by the fourth measurement information includes at least one of RSRP, RSRQ, and SINR.

In the embodiment of the application, when the wireless link failure occurs in the link between the target relay terminal equipment and the target network equipment, the reporting mode of the cell signal measurement result obtained by the measurement of the target relay terminal equipment is any one of the following modes:

Reporting mode 1, when a wireless link failure occurs in a link between a target relay terminal device and a target network device, the target relay terminal device is responsible for recording a cell signal measurement result obtained by measurement of the target relay terminal device and reporting the cell signal measurement result to the network device by the target relay terminal device;

Reporting mode 2, when a radio link failure occurs in a link between the target relay terminal device and the target network device, the target relay terminal device is responsible for recording a cell signal measurement result obtained by measurement of the target relay terminal device, but the target relay terminal device transmits the recorded measurement result to the remote terminal device, and the remote terminal device records and reports the measurement result to the network device.

The data item 14 records a cell signal measurement result obtained by measuring the target relay terminal device when the wireless link failure occurs in the link between the target relay terminal device and the target network device after the terminal device establishes a connection with the target network device through the target relay terminal device, and the network device can optimize the judgment threshold of the relay terminal based on the data item 14.

In some embodiments, as shown in fig. 8, prior to S701, the terminal device further implements:

And S700, the terminal equipment sends a second message to the network equipment, wherein the second message comprises first information, and the first information is used for indicating that the first data is recorded in the terminal equipment.

At this time, the network device receives the second message sent by the terminal device.

The terminal equipment indicates that the terminal equipment records unreported first data by sending first information to the network equipment, namely indicates the network equipment to acquire the first data.

In some embodiments, as shown in fig. 8, in the case where the network device receives the second message, the following processing may be performed:

S702, the network equipment sends a response message responding to the second message to the terminal equipment, wherein the response message comprises second information, and the second information is used for indicating the terminal equipment to send the first data to the network equipment.

At this time, the terminal device receives a response message sent by the network device and used for responding to the second message, where the response message includes second information, and the second information is used for indicating the terminal device to send the first data to the network device.

And after the network equipment receives the second message, the network equipment sends a response message carrying the second information to the terminal equipment under the condition that the first data are acquired from the terminal equipment. And indicating the terminal equipment to report the first data.

In some embodiments, the method further comprises:

The network device sends a third message to the terminal device, where the third message is used to indicate whether the terminal device is allowed to record the first data.

At this time, the terminal device receives a third message sent by the network device, where the third message is used to indicate whether the terminal device is allowed to record the first data.

In case the third message indicates that recording of the first data is allowed, the terminal device records the first data.

In case the third message indicates that the recording of the first data is not allowed, the terminal device does not record the first data.

Optionally, the result indicated by the network device based on the third message is the same or different for different data items in the first data. In an example, the network device instructs the terminal device to record all data items in the first data based on the third message. In an example, the network device instructs the terminal device to record data item 1 and data item 2 in the first data based on the third message, and instructs the terminal device not to record other data items than data item 1 and data item 2 in the first data.

In some embodiments, the third message comprises at least one third information for indicating whether the terminal device is allowed to record a corresponding type of data in the first data. Wherein different types of data may be understood as different data items.

In one example, all data items of the first data share one third information, namely, data collection instruction information. In yet another example, one or all of the data items in the first data each have independent data collection indication information for controlling the collection or non-collection of individual data items.

Here, the third information corresponds to one or a group of data items in the first data. In an example, the third message includes the following third information: information a and information B, wherein information a indicates data item 1, data item 2, and data item 3, and information B indicates data item 4 through data item 14.

In some embodiments, different data in the first data corresponds to the same third information or different third information.

In an example, the third message includes the following third information: information a and information B, wherein information a indicates data item 1, data item 2, and data item 3, and information B indicates data item 4 to data item 14, and at this time, data item 1, data item 2, and data item 3 correspond to the same third information: information a, data item 4 to data item 14 correspond to the same third information: information B, and data item 1 and data item 4 correspond to different third information.

Optionally, the partial data items in the first data are allowed to not correspond to any one third information, and the default terminal device may collect the data items, which is not limited by the present application.

In some embodiments, the terminal device further performs the following:

The terminal equipment sends a fourth message to the network equipment, wherein the fourth message is used for indicating whether the terminal equipment has the capability of recording the first data.

At this time, the network device receives a fourth message sent by the terminal device, where the fourth message is used to indicate whether the terminal device has the capability of recording the first data.

Here, the fourth message reported by the terminal device to the network device can indicate to the network device whether the terminal device has the capability of recording or collecting the first data.

Optionally, the fourth message includes at least one fourth information, where the fourth information is used to indicate whether the terminal device has a capability of recording data of a corresponding type in the first data.

In one example, all data items of the first data share one fourth information, i.e. one capability indication information. In yet another example, one or all of the data items of the first data have independent capability indication information for indicating the recording or collecting capability of the individual data items, respectively.

Here, the fourth information corresponds to one or a group of data items in the first data. In an example, the fourth message includes the following fourth information: information C indicating whether the terminal device has the capability to record data item 1, data item 2 and data item 3, and information D indicating whether the terminal device has the capability to record data item 4 to data item 14.

In some embodiments, different data in the first data corresponds to the same fourth information or different fourth information.

The wireless communication method provided by the embodiment of the application is further described below.

The wireless communication method provided by the embodiment of the application is shown in fig. 8, and comprises the following steps:

And S700, the terminal equipment sends a second message to the network equipment.

The second message is used for indicating to the network device that the data recorded on the terminal device side is desirable.

S702, the network equipment sends a second message response message to the terminal equipment.

The second message response message is used for indicating the terminal equipment to report the record data.

S701, the terminal equipment sends a first message to the network equipment.

The first message carries record data, and the sending of the first message is used for reporting the record data to the network equipment.

Wherein S700 and S702 are optional steps.

In the embodiment of the present application, the first message sent by the terminal device to the network device includes recording data related to a handover procedure failure or a radio link failure.

The recorded data related to the failure of the handover procedure or the radio link failure comprises at least one of the following data items, i.e. information:

Information 1, switching scene identification;

Information 2, a first time length, namely a time length 1, wherein the time length 1 is used for indicating time length information that the terminal equipment starts to execute switching to determine that a connection failure process is carried out;

Information 3, reason information of handover process failure or radio link failure;

Information 4, the terminal equipment fails in the switching process or the identification information of the source relay terminal equipment connected before the radio link fails;

Information 5, identification information of a relay terminal device with connection failure;

information 6, the identification information of the relay terminal equipment connected in the reconstruction process;

information 7, the measurement result of the cell signal measured by the terminal equipment when the switching process fails or the wireless link fails;

information 8, a measurement result of a source relay terminal device measured by the terminal device when the switching process fails or the wireless link fails;

Information 9, a measurement result of a target relay terminal device measured by the terminal device when the switching process fails or the wireless link fails;

Information 10, first indication information, where the first indication information is used to indicate whether a measurement result of a source relay terminal device is higher than a relay terminal selection threshold when a handover process fails or a radio link fails;

Information 11, second indication information, where the second indication information is used to indicate whether a measurement result of the target relay terminal device is higher than a relay terminal selection threshold when a handover process fails or a radio link fails;

Information 12, third indication information, where the third indication information is used to indicate that a wireless link failure occurs in a link between the target relay terminal device and the network device after the terminal device establishes a connection with the network device through the target relay terminal device;

Information 13, fourth indication information, where the fourth indication information is used to indicate that any relay terminal device meeting a relay terminal selection threshold cannot be found in a handover process failure or a reestablishment process after a radio link failure occurs in the terminal device;

And the information 14 is the cell signal measurement result measured by the target relay terminal equipment when the wireless link failure occurs on the link between the target relay terminal equipment and the network equipment after the terminal equipment establishes connection with the network equipment through the target relay terminal equipment.

For information 1, the meaning of the switching scene identity is one of the following:

The terminal equipment is switched from being indirectly connected with the source network equipment through the source relay terminal to being directly connected with the target network equipment;

The terminal equipment is switched from direct connection with the source network equipment to indirect connection with the target network equipment through the target relay terminal;

The terminal device switches from an indirect connection with the source network device via the relay terminal 1 to an indirect connection with the target network device via the relay terminal 2.

For information 2, the start of the handover execution by the terminal device of duration 1 can be understood as: the terminal device attempts to establish a connection with the target cell.

Illustratively, attempting to establish a connection includes the terminal device initiating a random access procedure or sending a reconfiguration complete message to the target cell. The scenario in which the terminal device attempts to establish a connection with the target cell may include two scenarios:

Scene 1, directly establishing connection between terminal equipment and a target cell through an air interface;

And the scene 2, the terminal equipment and the target cell indirectly establish connection through the target relay terminal equipment.

Meaning of connection failure time: the connection establishment between the terminal device and the target network device fails.

Connection failure includes any of the following scenarios:

connection failure scenario 1 (corresponding to handover failure scenario 1): the switching timer has timed out, but the terminal equipment still cannot successfully establish connection with the target network equipment;

connection failure scenario 2 (corresponding to handover failure scenario 2): the switching timer is overtime, but the terminal equipment still cannot successfully establish connection with the target relay terminal equipment;

Connection failure scenario 3 (corresponding to handover failure scenario 3): the switching timer is overtime, but the terminal equipment still cannot successfully establish connection with the target network equipment through the target relay terminal equipment;

Connection failure scenario 4 (corresponding to handover failure scenario 7): the switching process is successfully executed, but radio link failure occurs between the terminal equipment and the target network equipment later;

Connection failure scenario 5 (corresponding to handover failure scenario 8): the switching process is successfully executed, but radio link failure occurs between the terminal equipment and the target relay terminal equipment later;

Connection failure scenario 6 (corresponding to handover failure scenario 9): the switching process is successfully executed, the link between the terminal equipment and the target relay terminal equipment is still maintained, but the terminal equipment receives failure indication information sent by the target relay terminal equipment, wherein the failure indication information is used for indicating that the link between the target relay terminal and the target network equipment has radio link failure.

For the connection failure scene 1 to the connection failure scene 3, the connection failure time is the timeout time of the switching timer. The synchronization reconfiguration (which may also be referred to as a handover message) sent by the network device to the terminal device typically includes a handover timer (illustratively, the handover timer is T304), and if the terminal device cannot successfully establish a connection with the target network device before the handover timer expires, the handover is considered to be failed or the connection is failed.

For the connection failure scenario 4, the terminal device successfully accesses to the target cell, but the wireless link failure occurs in the terminal device due to unstable link or poor link signal quality between the terminal device and the target cell, and in the scenario, the connection failure time is the time when the wireless link failure occurs in the link between the terminal device and the handover target cell.

For the connection failure scenario 5, the terminal device successfully accesses to the target cell through the target relay terminal device, but the wireless link failure occurs in the terminal device due to unstable link or poor link signal quality between the terminal device and the target relay terminal device, and in the scenario, the connection failure time is the wireless link failure time of the link between the terminal device and the target relay terminal device.

For the connection failure scenario 6, the terminal device successfully accesses to the target cell through the target relay terminal device, but the wireless link failure occurs in the terminal device due to unstable link or poor link signal quality between the target relay terminal device and the target cell (although the link between the terminal device and the target relay terminal device is still good at this time, this case is also called as the wireless link failure occurs in the terminal device due to the link interruption between the target relay terminal device and the target cell), where the connection failure time is the time when the terminal device receives the link failure notification sent by the relay terminal device, and the link failure notification is used for notifying that the wireless link failure occurs in the link between the relay terminal device and the target cell.

For information 3, the reason indicated by the reason information of the handover procedure failure or the radio link failure includes at least one of the following:

the reason 1, the switching timer overtime; illustratively, the handoff timer is T304;

the reason 2, the switching process is successfully executed, but the radio link failure occurs between the terminal equipment and the target network equipment later;

the reason 3, the switching process is successfully executed, but the radio link failure occurs between the terminal equipment and the target relay terminal equipment later;

And 4, the switching process is successfully executed, the link between the terminal equipment and the target relay terminal equipment is still maintained, but the terminal equipment receives failure indication information sent by the target relay terminal equipment, wherein the failure indication information is used for indicating that the link between the target relay terminal equipment and the target network equipment has radio link failure.

For information 4, the terminal device fails the handover procedure or the identification information of the source relay terminal device connected before the radio link failure.

Optionally, the identification information of the relay terminal device is layer 2 identification information, or an L3 identification, or a non-access layer identification.

For information 5, identifying information of a relay terminal device with connection failure;

The connection failure includes a radio link failure before handover (i.e., any of handover failure scenario 4 to handover failure scenario 6), or any of connection failure scenarios corresponding to connection failure scenarios 2,3, 5, and 6. The relay terminal device that has failed the connection may be a source relay terminal device or a target relay terminal device.

When the connection failure is a radio link failure before handover, the relay terminal device that has failed connection may be a source relay terminal device. When the connection fails, the method comprises the following steps: any connection failure scene corresponding to the connection failure scenes 2,3, 5 and 6 is the target relay terminal equipment.

For information 6, the identification information of the relay terminal equipment connected by the procedure is rebuilt.

Optionally, the identification information of the relay terminal device is layer 2 identification information.

For information 7, the measurement results of the cell signal may comprise measurement results of the serving cell and/or at least one neighbor cell. The measurement results include: RSRP, RSRQ, SINR.

For information 8, the measurement result of the source relay terminal device includes at least one of the following parameters of the source relay terminal device: RSRP, RSRQ, SINR.

For information 9, the measurement result of the target relay terminal device includes at least one of the following parameters of the target relay terminal device: RSRP, RSRQ, SINR.

For information 10 and information 11, the relay terminal selection threshold is a threshold configured by the network device, which determines whether the relay terminal device is suitable as a relay terminal device of a remote terminal device, if one remote terminal device monitors signals of multiple relay terminal devices at the same time, the remote terminal device only selects one relay terminal device as the remote terminal device from the relay terminal devices whose measured signals are greater than the relay terminal selection threshold.

For information 13, the fourth indication information may also be understood as no relay terminal device (No suitable relay UE found during connection reestablishment procedure) suitable for the connection re-establishment procedure.

For the information 14, the measurement result includes at least one of RSRP, RSRQ and SINR, and the reporting manner of the measurement result includes at least one of the following:

Reporting mode 1, when a wireless link failure occurs in a link between a target relay terminal device and a target network device, the target relay terminal device is responsible for recording a cell signal measurement result obtained by measurement of the target relay terminal device and reporting the cell signal measurement result to the network device by the target relay terminal device.

In S702, the terminal device first sends a second message to the network device, where the second message includes recorded data advisable indication information related to a handover procedure failure or a radio link failure.

The terminal device may further receive a second message response message sent by the network device, where the second message response message includes indication information that may report recording data related to a handover procedure failure or a radio link failure.

The terminal equipment can also receive a configuration message sent by the network equipment, wherein the configuration message comprises data collection indication information, and the terminal equipment records corresponding data items in record data related to the failure of the switching process or the failure of the wireless link under the condition that the value of the data collection indication information indicates that the collection is allowed; otherwise, under the condition that the value of the data collection indication information indicates that collection is not allowed, the terminal equipment does not record the data item contained in the record data related to the failure of the switching process or the failure of the wireless link.

The terminal device may further send capability indication information to the network device, where the capability indication information is used to indicate whether the terminal device supports collection or recording of at least one data item in the record data related to the handover procedure failure or the radio link failure.

In the embodiment of the application, the beneficial effects of each information in the record data reported by the first message are as follows:

the information 1 records the identification information of the switching scene, so that the network equipment can identify which switching scene has problems, and the optimization algorithm design according to the scene is facilitated.

The information 2 records the time length information that the terminal equipment starts to execute the switching to determine that the connection failure process is going to occur, which is beneficial for the network equipment to judge whether the connection failure needs to be optimized or not, for example, if the time length 1 records a long time, the connection failure and the switching relationship is not large (the connection failure occurs only after the switching is long), and the switching parameters may not need to be optimized.

The information 3 records the reason information of the failure of the switching process or the failure of the radio link, and the combination of the information 1 is beneficial to the network equipment to know finer failure scenes, so that the network equipment can be conveniently optimized for subdivision scenes separately.

The information 4 to the information 6 record the identification information of the relay terminal equipment, so that the network equipment can conveniently judge that the relay switching is too early, too late or the relay is erroneously switched.

Such as: if the identifier of the relay terminal device with the connection failure recorded by the terminal device is the same as the identifier of the source relay terminal device, and the identifier of the target relay terminal device is the same as the identifier of the relay terminal device used in the reestablishment process, the network device may determine that the failure is too late in switching;

For another example: if the relay terminal identifier used in the reconstruction process is different from the source relay terminal identifier and the target relay terminal identifier, the network device may determine that the failure is relay error handover;

For another example: if the relay terminal identifier used in the reestablishment process is the same as the source relay terminal identifier, the network device may determine that the failure is premature handover.

The information 7 to the information 9 record the measurement results of the cell and the relay terminal, which is favorable for the network device to accurately judge the connection failure direction, for example, the measurement result of the target relay terminal is poor when the connection fails, and the situation that the network device is switched too early may be indicated.

The information 10 and the information 11 record the relation between the measurement result of the relay terminal and the selection threshold value of the relay terminal, and in one implementation manner, the network equipment is favorable for accurately judging the connection failure direction; in another implementation, the network device may be assisted in optimizing a relay terminal selection threshold.

The reason why the information 12 records the radio link failure is that the radio link failure occurs in the link between the target relay and the network device after the successful switching, and the information 1 is beneficial to the network device to know finer failure scenes, so that the network device can be conveniently optimized for the subdivision scenes separately.

The information 13 records that any relay terminal device meeting the relay terminal selection threshold cannot be found in the handover process failure or the reestablishment process after the radio link failure of the terminal device, possibly because the relay terminal meeting the condition cannot be found due to the fact that the relay terminal selection threshold is too high, and can assist the network device to optimize the relay terminal selection threshold.

The information 14 records the cell signal measurement result obtained by measuring the target relay terminal device when the wireless link failure occurs in the link between the target relay terminal device and the network device after the terminal device establishes a connection with the network device through the target relay terminal device, the network device can optimize the relay terminal judgment threshold based on the information, the relay terminal judgment threshold is different from the relay terminal selection threshold, wherein the relay terminal selection threshold is used by a remote terminal, the relay terminal judgment threshold is used by the relay terminal itself, only the terminal device meeting the relay terminal judgment threshold can be used as the relay terminal device of other remote terminals, and the relay terminal judgment threshold is configured to the terminal device through the network device.

In the embodiment of the present application, for the collection instruction information, in one embodiment, all data items reported by the first message share one collection instruction information, and in another embodiment, part or all of the data items reported by the first message have independent collection instruction information, so as to control collection or recording of individual data items.

In the embodiment of the application, for the capability indication information, in an implementation manner, all data items reported by the first message share one capability indication information, and as long as the terminal equipment supports the capability, the terminal equipment can record any data item reported by the first message; in another implementation manner, part or all of the data items reported by the first message correspond to independent capability indication information respectively, and the terminal device can record the corresponding data items only if the capability indication information of the corresponding data items indicates permission.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application. For example, on the premise of no conflict, the embodiments described in the present application and/or technical features in the embodiments may be combined with any other embodiments in the prior art, and the technical solutions obtained after combination should also fall into the protection scope of the present application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Furthermore, in the embodiment of the present application, the terms "downstream", "upstream" and "sidestream" are used to indicate a transmission direction of signals or data, where "downstream" is used to indicate that the transmission direction of signals or data is a first direction from a station to a user equipment of a cell, and "upstream" is used to indicate that the transmission direction of signals or data is a second direction from the user equipment of the cell to the station, and "sidestream" is used to indicate that the transmission direction of signals or data is a third direction from the user equipment 1 to the user equipment 2. For example, "downstream signal" means that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 9 is a schematic structural diagram of a wireless communication apparatus according to an embodiment of the present application, which is applied to a terminal device, as shown in fig. 9, and includes:

switching scene identification; the switching scene identifier is used for indicating the switching scene of the terminal equipment;

The first time is the time when the terminal equipment starts to execute switching to the connection failure;

The reason information is used for indicating the reason of the switching failure;

the first equipment identifier indicates first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment with source network equipment;

the second equipment identifier indicates second relay terminal equipment, and the second relay terminal equipment is relay terminal equipment with connection failure;

A third device identifier, where the third device identifier indicates a third relay terminal device, and the third relay terminal device is a relay terminal device connected in a radio link reestablishment process;

The first measurement information is a measurement result of a cell signal measured by the terminal equipment under the condition of handover failure;

the second measurement information is a measurement result of the first relay terminal device measured by the terminal device under the condition of switching failure;

The third measurement information is a measurement result of a fourth relay terminal device measured by the terminal device under the condition of switching failure, and the fourth relay terminal device is a target relay terminal device in the switching process;

the first indication information is used for indicating whether the second measurement information is higher than a relay terminal selection threshold value or not;

second indication information, the second indication information is used for indicating whether the third measurement information is higher than the relay terminal selection threshold;

The third indication information is used for indicating that a first link fails in a wireless link after the terminal equipment establishes connection with the target network equipment through the fourth relay terminal equipment, and the first link is a link between the fourth relay terminal equipment and the target network equipment;

fourth indication information, where the fourth indication information is used to indicate that the terminal device cannot find any third relay terminal device that meets a relay terminal selection threshold condition in a connection reestablishment process;

And fourth measurement information, wherein the fourth measurement information is a measurement result of a cell signal measured by the fourth relay terminal equipment under the condition that the first link fails in a radio link.

In some embodiments, the switching scenario of the switching comprises at least one of:

the terminal equipment is switched from being indirectly connected with the source network equipment through the source relay terminal equipment to being directly connected with the target network equipment;

The terminal equipment is switched from direct connection with the source network equipment to indirect connection with the target network equipment through the relay terminal equipment;

The terminal device switches from being indirectly connected with the source network device through the source relay terminal device to being indirectly connected with the target network device through the target relay terminal device.

In some embodiments, the first duration includes one of the following for the duration meaning that the terminal device starts to perform handover to the occurrence of the connection failure:

In some embodiments, the cause of the handover failure indicated by the cause information includes one of:

The switching timer times out;

Radio link failure associated with handover.

In some embodiments, the cause of the handover-related radio link failure includes one of:

A fourth link fails, wherein the fourth link is a wireless link between the terminal equipment and the source network equipment;

A fifth link fails, wherein the fifth link is a wireless link between the terminal equipment and a first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment and the source network equipment;

A sixth link fails, wherein the sixth link is a wireless link between the first relay terminal device and the source network device;

after the terminal equipment successfully executes the switching process, the second link fails in a wireless link, and the second link is a wireless link between the terminal equipment successfully switched and the target network equipment;

After the terminal equipment successfully executes the switching process, a third link fails, wherein the third link is a wireless link between the terminal equipment and a fourth relay terminal, and the fourth relay terminal is used for indirectly connecting with the target network equipment after the terminal equipment successfully switches;

After the terminal equipment successfully executes the switching process, the first link fails, and the first link is a wireless link between the fourth relay terminal equipment and the target network equipment.

In some embodiments, apparatus 900 further comprises:

The first receiving module is configured to receive failure indication information sent by the fourth relay terminal device when the first link fails, where the failure indication information is used to indicate that the first link fails.

In some embodiments, the first sending module 901 is further configured to send a second message to the network device, where the second message includes first information, and the first information is used to indicate that the terminal device records the first data.

In some embodiments, the apparatus 900 includes a first receiving module further configured to receive a response message sent by the network device and used for responding to the second message, where the response message includes second information, and the second information is used to instruct the terminal device to send the first data to the network device.

In some embodiments, the apparatus 900 includes a first receiving module further configured to receive a third message sent by the network device, where the third message is used to indicate whether the terminal device is allowed to record the first data.

In some embodiments, the third message comprises at least one third information for indicating whether the terminal device is allowed to record a corresponding type of data in the first data.

In some embodiments, different types of data in the first data correspond to the same third information or different third information.

In some embodiments, the first sending module 901 is further configured to send a fourth message to the network device, where the fourth message is used to indicate whether the terminal device has the capability of recording the first data.

In some embodiments, the fourth message includes at least one fourth information for indicating whether the terminal device has the capability to record a corresponding type of data in the first data.

In some embodiments, different types of data in the first data correspond to the same fourth information or different fourth information.

Fig. 10 is a schematic diagram of the structural composition of a wireless communication apparatus according to an embodiment of the present application, which is applied to a network device, as shown in fig. 10, a wireless communication apparatus 1000 includes:

the switching timer is overtime and is used for controlling the switching process;

Radio link failure associated with handover.

A fifth link fails, wherein the fifth link is a wireless link between the terminal equipment and first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment and source network equipment;

In some embodiments, the second receiving module is further configured to:

The network device receives a second message sent by the terminal device, wherein the second message comprises first information, and the first information is used for indicating that the terminal device records the first data.

In some embodiments, the network device 1000 includes a second sending module configured to send a response message to the terminal device for responding to the second message, where the response message includes second information, and the second information is used to instruct the terminal device to send the first data to the network device.

In some embodiments, the network device 1000 includes a second sending module configured to send a third message to the terminal device, where the third message is used to indicate whether the terminal device is allowed to record the first data.

In some embodiments, the second receiving module 1001 is configured to receive a fourth message sent by the terminal device, where the fourth message is used to indicate whether the terminal device has a capability of recording the first data.

It should be understood by those skilled in the art that the above description of the wireless communication apparatus according to the embodiment of the present application may be understood with reference to the description of the wireless communication method according to the embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device 1100 according to an embodiment of the present application. The communication device may be a terminal device or a network device. The communication device 1100 shown in fig. 11 comprises a processor 1110, from which the processor 1110 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 11, the communication device 1100 may also include a memory 1120. Wherein the processor 1110 may call and run a computer program from the memory 1120 to implement the methods in embodiments of the present application.

Wherein the memory 1120 may be a separate device from the processor 1110 or may be integrated into the processor 1110.

Optionally, as shown in fig. 11, the communication device 1100 may further include a transceiver 1130, and the processor 1110 may control the transceiver 1130 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 1130 may include, among other things, a transmitter and a receiver. Transceiver 1130 may further include an antenna, the number of which may be one or more.

Optionally, the communication device 1100 may be a network device in the embodiment of the present application, and the communication device 1100 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 communication device 1100 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 1100 may implement a corresponding flow implemented by the mobile terminal/terminal device in each method according to an embodiment of the present application, which is not described herein for brevity.

Fig. 12 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 1200 shown in fig. 12 includes a processor 1210, and the processor 1210 may call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

Optionally, as shown in fig. 12, the chip 1200 may further include a memory 1220. Wherein the processor 1210 may call and run computer programs from the memory 1220 to implement the methods of embodiments of the present application.

The memory 1220 may be a separate device from the processor 1210, or may be integrated into the processor 1210.

Optionally, the chip 1200 may also include an input interface 1230. Wherein the processor 1210 may control the input interface 1230 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 1200 may further include an output interface 1240. Wherein the processor 1210 may control the output interface 840 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 mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/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. 13 is a schematic block diagram of a communication system 1300 provided by an embodiment of the present application. As shown in fig. 13, the communication system 1300 includes a terminal device 1310 and a network device 1320.

The terminal device 1310 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1320 may be used 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 random access memory (Random Access Memory, RAM) which acts as external cache memory. 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 mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of 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 mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of 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 mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/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 usb 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 present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, the method comprising:

The terminal equipment sends a first message to the network equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.
The method of claim 1, wherein the first data comprises at least one of the following data items:

switching scene identification; the switching scene identifier is used for indicating the switching scene of the terminal equipment;

The first time is the time when the terminal equipment starts to execute switching to the connection failure;

The reason information is used for indicating the reason of the switching failure;

the first equipment identifier indicates first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment with source network equipment;

the second equipment identifier indicates second relay terminal equipment, and the second relay terminal equipment is relay terminal equipment with connection failure;

A third device identifier, where the third device identifier indicates a third relay terminal device, and the third relay terminal device is a relay terminal device connected in a radio link reestablishment process;

The first measurement information is a measurement result of a cell signal measured by the terminal equipment under the condition of handover failure;

the second measurement information is a measurement result of the first relay terminal device measured by the terminal device under the condition of switching failure;

The third measurement information is a measurement result of a fourth relay terminal device measured by the terminal device under the condition of switching failure, and the fourth relay terminal device is a target relay terminal device in the switching process;

the first indication information is used for indicating whether the second measurement information is higher than a relay terminal selection threshold value or not;

second indication information, the second indication information is used for indicating whether the third measurement information is higher than the relay terminal selection threshold;

The third indication information is used for indicating that a first link fails in a wireless link after the terminal equipment establishes connection with the target network equipment through the fourth relay terminal equipment, and the first link is a link between the fourth relay terminal equipment and the target network equipment;

fourth indication information, where the fourth indication information is used to indicate that the terminal device cannot find any third relay terminal device that meets a relay terminal selection threshold condition in a connection reestablishment process;

And fourth measurement information, wherein the fourth measurement information is a measurement result of a cell signal measured by the fourth relay terminal equipment under the condition that the first link fails in a radio link.
The method of claim 1 or 2, wherein the switched switching scenario comprises at least one of:

the terminal equipment is switched from being indirectly connected with the source network equipment through the source relay terminal equipment to being directly connected with the target network equipment;

The terminal equipment is switched from direct connection with the source network equipment to indirect connection with the target network equipment through the relay terminal equipment;

The terminal device switches from being indirectly connected with the source network device through the source relay terminal device to being indirectly connected with the target network device through the target relay terminal device.
The method of claim 2, wherein the first duration is one of a duration meaning that the terminal device starts to perform handover to the occurrence of the connection failure includes:

The terminal equipment starts to execute switching to the time length of the overtime of a switching timer, and the switching timer is used for controlling the switching process;

The terminal equipment starts to execute switching to a second link, wherein the second link is a wireless link between the terminal equipment and target network equipment after successful switching;

The terminal equipment starts to execute switching to a time length when a radio link failure occurs in a third link, wherein the third link is a radio link between the terminal equipment after switching is successful and a fourth relay terminal, and the fourth relay terminal equipment is target relay terminal equipment in the switching process;

And the terminal equipment starts to execute switching to a time length when the radio link failure occurs in the first link, wherein the first link is a link between the fourth relay terminal equipment and the target network equipment after the terminal equipment is successfully switched.
The method of claim 2, wherein the cause of the handover failure indicated by the cause information includes one of:

The switching timer times out;

Radio link failure associated with handover.
The method of claim 5, wherein the cause of the handover-related radio link failure comprises at least one of:

A fourth link fails, wherein the fourth link is a wireless link between the terminal equipment and the source network equipment;

A fifth link fails, wherein the fifth link is a wireless link between the terminal equipment and a first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment and the source network equipment;

A sixth link fails, wherein the sixth link is a wireless link between the first relay terminal device and the source network device;

after the terminal equipment successfully executes the switching process, the second link fails in a wireless link, and the second link is a wireless link between the terminal equipment successfully switched and the target network equipment;

After the terminal equipment successfully executes the switching process, a third link fails, wherein the third link is a wireless link between the terminal equipment and a fourth relay terminal, and the fourth relay terminal is used for indirectly connecting with the target network equipment after the terminal equipment successfully switches;

After the terminal equipment successfully executes the switching process, the first link fails, and the first link is a wireless link between the fourth relay terminal equipment and the target network equipment.
The method of claim 2,4 or 6, wherein in case of a radio link failure of the first link, the method further comprises:

and the terminal equipment receives failure indication information sent by the fourth relay terminal equipment, wherein the failure indication information is used for indicating that the first link fails in a radio link.
The method of any one of claims 1 to 7, wherein the method further comprises:

The terminal device sends a second message to the network device, wherein the second message comprises first information, and the first information is used for indicating that the terminal device records the first data.
The method of claim 8, wherein the method further comprises:

The terminal equipment receives a response message sent by the network equipment and used for responding to the second message, wherein the response message comprises second information, and the second information is used for indicating the terminal equipment to send the first data to the network equipment.
The method of any one of claims 1 to 9, wherein the method further comprises:

The terminal device receives a third message sent by the network device, where the third message is used to indicate whether the terminal device is allowed to record the first data.
The method of claim 10, wherein the third message comprises at least one third information indicating whether the terminal device is allowed to record a corresponding type of data in the first data.
The method of claim 11, wherein different types of data in the first data correspond to the same third information or different third information.
The method of any one of claims 1 to 12, wherein the method further comprises:

The terminal equipment sends a fourth message to the network equipment, wherein the fourth message is used for indicating whether the terminal equipment has the capability of recording the first data.
The method of claim 13, wherein the fourth message includes at least one fourth information indicating whether the terminal device has a capability to record a corresponding type of data in the first data.
The method of claim 14, wherein different types of data in the first data correspond to the same fourth information or different fourth information.
A method of wireless communication, the method comprising:

the network equipment receives a first message sent by the terminal equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay terminal equipment.
The method of claim 16, wherein the first data comprises at least one of the following data items:

switching scene identification; the switching scene identifier is used for indicating the switching scene of the terminal equipment;

The first time is the time when the terminal equipment starts to execute switching to the connection failure;

The reason information is used for indicating the reason of the switching failure;

the first equipment identifier indicates first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment with source network equipment;

the second equipment identifier indicates second relay terminal equipment, and the second relay terminal equipment is relay terminal equipment with connection failure;

A third device identifier, where the third device identifier indicates a third relay terminal device, and the third relay terminal device is a relay terminal device connected in a radio link reestablishment process;

The first measurement information is a measurement result of a cell signal measured by the terminal equipment under the condition of handover failure;

the second measurement information is a measurement result of the first relay terminal device measured by the terminal device under the condition of switching failure;

The third measurement information is a measurement result of a fourth relay terminal device measured by the terminal device under the condition of switching failure, and the fourth relay terminal device is a target relay terminal device in the switching process;

the first indication information is used for indicating whether the second measurement information is higher than a relay terminal selection threshold value or not;

second indication information, the second indication information is used for indicating whether the third measurement information is higher than the relay terminal selection threshold;

The third indication information is used for indicating that a first link fails in a wireless link after the terminal equipment establishes connection with the target network equipment through the fourth relay terminal equipment, and the first link is a link between the fourth relay terminal equipment and the target network equipment;

fourth indication information, where the fourth indication information is used to indicate that the terminal device cannot find any third relay terminal device that meets a relay terminal selection threshold condition in a connection reestablishment process;

And fourth measurement information, wherein the fourth measurement information is a measurement result of a cell signal measured by the fourth relay terminal equipment under the condition that the first link fails in a radio link.
The method of claim 16 or 17, wherein the switched switching scenario comprises at least one of:

the terminal equipment is switched from being indirectly connected with the source network equipment through the source relay terminal equipment to being directly connected with the target network equipment;

The terminal equipment is switched from direct connection with the source network equipment to indirect connection with the target network equipment through the relay terminal equipment;

The terminal device switches from being indirectly connected with the source network device through the source relay terminal device to being indirectly connected with the target network device through the target relay terminal device.
The method of claim 17, wherein the first duration is one of a duration meaning that the terminal device starts performing handover to a connection failure occurrence, including:

The terminal equipment starts to execute switching to the time length of the overtime of a switching timer, and the switching timer is used for controlling the switching process;

The terminal equipment starts to execute switching to a second link, wherein the second link is a wireless link between the terminal equipment and target network equipment after successful switching;

The terminal equipment starts to execute switching to a time length when a radio link failure occurs in a third link, wherein the third link is a radio link between the terminal equipment after switching is successful and a fourth relay terminal, and the fourth relay terminal equipment is target relay terminal equipment in the switching process;

And the terminal equipment starts to execute switching to a time length when the radio link failure occurs in the first link, wherein the first link is a link between the fourth relay terminal equipment and the target network equipment after the terminal equipment is successfully switched.
The method of claim 17, wherein the cause of the handover failure indicated by the cause information comprises one of:

the switching timer is overtime and is used for controlling the switching process;

Radio link failure associated with handover.
The method of claim 20, wherein the cause of the handover-related radio link failure comprises at least one of:

A fourth link fails, wherein the fourth link is a wireless link between the terminal equipment and the source network equipment;

A fifth link fails, wherein the fifth link is a wireless link between the terminal equipment and first relay terminal equipment, and the first relay terminal is used for indirectly connecting the terminal equipment and source network equipment;

A sixth link fails, wherein the sixth link is a wireless link between the first relay terminal device and the source network device;

after the terminal equipment successfully executes the switching process, a second link fails, wherein the second link is a wireless link between the terminal equipment and the target network equipment after the terminal equipment successfully switches;

After the terminal equipment successfully executes the switching process, a third link fails, wherein the third link is a wireless link between the terminal equipment and a fourth relay terminal, and the fourth relay terminal is used for indirectly connecting with the target network equipment after the terminal equipment successfully switches;

After the terminal equipment successfully executes the switching process, the first link fails, and the first link is a wireless link between the fourth relay terminal equipment and the target network equipment.
The method of any one of claims 16 to 21, wherein the method further comprises:

The network device receives a second message sent by the terminal device, wherein the second message comprises first information, and the first information is used for indicating that the terminal device records the first data.
The method of claim 22, wherein the method further comprises:

the network device sends a response message for responding to the second message to the terminal device, wherein the response message comprises second information, and the second information is used for indicating the terminal device to send the first data to the network device.
The method of any one of claims 16 to 23, wherein the method further comprises: the network device sends a third message to the terminal device, where the third message is used to indicate whether the terminal device is allowed to record the first data.
The method of claim 24, wherein the third message includes at least one third information indicating whether the terminal device is allowed to record a corresponding type of data in the first data.
The method of claim 25, wherein different types of data in the first data correspond to the same third information or different third information.
The method of any one of claims 16 to 26, wherein the method further comprises:

The network device receives a fourth message sent by the terminal device, where the fourth message is used to indicate whether the terminal device has the capability of recording the first data.
The method of claim 27, wherein the fourth message includes at least one fourth information indicating whether the terminal device has a capability to record a corresponding type of data in the first data.
The method of claim 28, wherein different types of data in the first data correspond to the same fourth information or different fourth information.
A wireless communications apparatus, comprising:

The first sending module is configured to send a first message to the network device, where the first message includes first data, where the first data is data related to a handover failure, the handover failure includes a handover procedure failure or a radio link failure related to a handover, and the handover is related to the relay terminal device.
A wireless communications apparatus, comprising:

The second receiving module is configured to receive a first message sent by the terminal equipment, wherein the first message comprises first data, the first data is data related to switching failure, the switching failure comprises switching process failure or radio link failure related to switching, and the switching is related to the relay 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 29.
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.
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 of claims 16 to 29.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 15.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 16 to 29.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 15.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 16 to 29.
A computer program which causes a computer to perform the method of any one of claims 1 to 15.
A computer program which causes a computer to perform the method of any one of claims 16 to 29.