CN115942393B

CN115942393B - Method, device and terminal for processing reconfiguration failure

Info

Publication number: CN115942393B
Application number: CN202110888280.4A
Authority: CN
Inventors: 赵亚利
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2025-12-19
Anticipated expiration: 2041-08-03
Also published as: WO2023011411A1; CN115942393A

Abstract

This invention provides a method, apparatus, and terminal for handling reconfiguration failures. The method includes: if a relay terminal determines that a reconfiguration has failed, the relay terminal sends a first indication message to a remote terminal, and/or, the relay terminal sends a second indication message to a network device. The first indication message triggers the remote terminal to select and/or reselect a target object, where the target object includes a cell and/or the relay terminal itself. The second indication message indicates relevant parameters related to the reconfiguration failure. This invention ensures that the system can operate normally after a reconfiguration failure in a relay scenario.

Description

Method, device and terminal for processing reconfiguration failure

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a terminal for processing reconfiguration failure.

Background

To extend Network coverage, one solution is to introduce terminal-to-Network relay (UE-to-Network relay). The relay itself may be a terminal (also referred to as SIDELINK RELAY) with a relay function. For UE-to-Network Relay, the interface between the Relay and the Network device uses the Uu interface, and the interface between the Relay and the relayed terminal (also called the far-end terminal) uses the direct communication interface (also called the Sidelink interface, or the bypass interface, or the PC5 interface). After the UE-to-Network Relay is introduced, the remote terminal accesses the Network through the Relay terminal, and there is no specific scheme at present for how to handle the reconfiguration failure of the Relay terminal and/or the remote terminal.

Disclosure of Invention

The invention provides a method, a device and a terminal for processing reconfiguration failure, which solve the problem of how to process the reconfiguration failure of a relay terminal and/or a remote terminal, and have no specific scheme at present.

The embodiment of the invention provides a method for processing reconfiguration failure, which is applied to a relay terminal and comprises the following steps:

if the relay terminal determines that reconfiguration fails, the relay terminal sends first indication information to a remote terminal and/or the relay terminal sends second indication information to network equipment;

The remote terminal comprises a remote terminal, a first indication information and a second indication information, wherein the first indication information is used for triggering the remote terminal to select and/or reselect a target object, the target object comprises a cell and/or a relay terminal, and the second indication information is used for indicating related parameters of reconfiguration failure.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

and the reconfiguration of the direct communication interface from the relay terminal to the remote terminal fails.

Optionally, the relevant parameters of Uu interface reconfiguration failure of the relay terminal include at least one of the following:

The Uu interface reconfiguration fails;

The Uu interface reconfiguration failure cause;

a remote terminal identifier failed to be reconfigured;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the relevant parameters of the relay terminal to remote terminal direct communication interface reconfiguration failure include at least one of the following:

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the direct communication link is identified as a combined identification of a direct communication source destination address and a direct communication destination address, or the direct communication link is identified as a direct communication destination address.

Optionally, if the relay terminal determines that the reconfiguration fails, the relay terminal sends the first indication information to the remote terminal, and/or the relay terminal sends the second indication information to the network device, including any one of the following:

if the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails, the relay terminal sends first indication information to a remote terminal;

If the relay terminal determines that the relay terminal Uu interface reconfiguration fails, and the reason of the reconfiguration failure comprises failure of the relay terminal Uu interface parameter configuration, the relay terminal sends first indication information to the remote terminal;

if the relay terminal determines that the reconfiguration of the Uu interface of the relay terminal fails, and the reason of the reconfiguration failure only comprises parameter configuration failure related to relay, the relay terminal sends first indication information to a remote terminal and/or the relay terminal sends second indication information to network equipment.

Optionally, the method further comprises:

and the relay terminal continues to use the Uu interface configuration before Uu interface reconfiguration.

Optionally, if the relay terminal determines that the reconfiguration fails, the relay terminal sends the first indication information to the remote terminal, and/or the relay terminal sends the second indication information to the network device, including at least one of the following:

If the relay terminal determines that the reconfiguration of the direct communication interface from the relay terminal to the remote terminal fails, the relay terminal continues to use the direct communication interface configuration used before the reconfiguration of the direct communication interface, and the relay terminal sends first indication information to the remote terminal through the direct communication interface;

and if the relay terminal determines that the reconfiguration of the direct communication interface from the relay terminal to the remote terminal fails, the relay terminal sends second indication information to the network equipment.

Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

The embodiment of the invention also provides a device for processing reconfiguration failure, which is applied to the relay terminal and comprises a memory, a transceiver and a processor;

the memory is used for storing a computer program, the transceiver is used for receiving and transmitting data under the control of the processor, and the processor is used for reading the computer program in the memory and executing the following operations:

if the reconfiguration failure is determined, the first indication information is sent to the remote terminal, and/or the second indication information is sent to the network equipment;

The first indication information is used for triggering the remote terminal to select and/or reselect a target object, wherein the target object comprises a cell and/or a relay terminal, and the second indication information is used for indicating related parameters of reconfiguration failure.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

The Uu interface reconfiguration fails;

The Uu interface reconfiguration failure cause;

a remote terminal identifier failed to be reconfigured;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the processor is configured to read the computer program in the memory and perform any one of the following operations:

if the Uu interface reconfiguration failure of the relay terminal is determined, sending first indication information to a remote terminal;

If the relay terminal Uu interface reconfiguration fails and the reason of the reconfiguration failure comprises the failure of the relay terminal Uu interface parameter configuration, sending first indication information to the remote terminal;

if it is determined that the reconfiguration of the Uu interface of the relay terminal fails, and the reason of the reconfiguration failure only includes parameter configuration failure related to the relay, the first indication information is sent to the remote terminal, and/or the second indication information is sent to the network device.

Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

The Uu interface configuration before the Uu interface reconfiguration continues to be used.

Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

If the direct communication interface reconfiguration from the relay terminal to the remote terminal is determined to be failed, continuing to use the direct communication interface configuration used before the direct communication interface reconfiguration, and sending first indication information to the remote terminal through the direct communication interface;

And if the direct communication interface from the relay terminal to the remote terminal fails to be reconfigured, sending second indication information to the network equipment.

The embodiment of the invention also provides a terminal, which is a relay terminal and comprises:

A sending unit, configured to send first indication information to a remote terminal and/or send second indication information to a network device if it is determined that reconfiguration fails;

The embodiment of the invention also provides a processor-readable storage medium storing a computer program for causing the processor to execute the reconfiguration failure processing method as described above.

The embodiment of the invention also provides a method for processing reconfiguration failure, which is applied to the remote terminal and comprises the following steps:

The method comprises the steps that a remote terminal receives first indication information sent by a relay terminal, wherein the first indication information is sent under the condition that the relay terminal determines that reconfiguration fails;

And the remote terminal selects and/or reselects a target object according to the first indication information, wherein the target object is a cell and/or a relay terminal.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

Optionally, the selecting and/or reselecting the target object by the remote terminal according to the first indication information includes:

the remote terminal determines a target object according to the first indication information;

after the target object is determined, at least one of the following steps is further included:

If the target object is a relay terminal, the remote terminal initiates Radio Resource Control (RRC) establishment and/or RRC reestablishment to a serving cell of the relay terminal through the relay terminal;

And if the target object is a cell, the remote terminal initiates RRC establishment and/or RRC reestablishment to the cell.

Optionally, the determining the target object includes:

If there are multiple target objects meeting the condition, selecting a unique target object from the multiple target objects meeting the condition, wherein the specific selection principle can be any one of the following:

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

The embodiment of the invention also provides a device for processing reconfiguration failure, which is applied to the remote terminal and comprises a memory, a transceiver and a processor;

receiving first indication information sent by a relay terminal, wherein the first indication information is sent under the condition that the relay terminal determines that reconfiguration fails;

and selecting and/or reselecting a target object according to the first indication information, wherein the target object is a cell and/or a relay terminal.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

determining a target object according to the first indication information;

If the target object is a relay terminal, initiating Radio Resource Control (RRC) establishment and/or RRC reestablishment to a service cell of the relay terminal through the relay terminal;

And if the target object is a cell, initiating RRC establishment and/or RRC reestablishment to the cell.

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

The embodiment of the invention also provides a terminal, which is a remote terminal and comprises:

The receiving unit is used for receiving first indication information sent by the relay terminal, wherein the first indication information is sent under the condition that the relay terminal determines that reconfiguration fails;

And the processing unit is used for selecting and/or reselecting the target object according to the first indication information, wherein the target object is a cell and/or a relay terminal.

The embodiment of the invention also provides a reconfiguration failure processing method which is applied to the remote terminal and comprises the following steps:

If the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to the network equipment, and/or the remote terminal performs the selection and/or reselection of the target object;

the third indication information is used for indicating related parameters of the reconfiguration failure, and the target object comprises a cell and/or a relay terminal.

Optionally, the reconfiguration failure includes at least one of:

an end-to-end Radio Resource Control (RRC) reconfiguration failure between the remote terminal and the network device;

and the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails.

Optionally, the parameters related to the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of:

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the parameters related to the failure of the reconfiguration of the direct communication interface from the remote terminal to the relay terminal include at least one of the following:

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, if the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to the network device, and/or the remote terminal performs selection and/or reselection of the target object, including any one of the following:

If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails, the remote terminal performs the selection and/or reselection of the target object;

If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails, and the reason of the reconfiguration failure comprises that the Uu interface configuration between the remote terminal and the network equipment fails, the remote terminal selects and/or reselects a target object;

if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails, and the reason of the reconfiguration failure only comprises failure of direct communication interface parameter configuration of the remote terminal and the relay terminal, the remote terminal sends third indication information to the network equipment, and/or the remote terminal performs selection and/or reselection of the target object.

Optionally, the method further comprises:

The remote terminal continues to use the end-to-end configuration used prior to the reception of the end-to-end reconfiguration signaling.

Optionally, if the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to the network device, including:

If the remote terminal determines that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails, the remote terminal continues to use the direct communication interface configuration used before the reconfiguration of the direct communication interface, and the remote terminal sends third indication information to the network equipment through the relay terminal.

Optionally, the third indication information is carried by an end-to-end RRC signaling between the remote terminal and the network device.

Optionally, the selecting and/or reselecting the target object by the remote terminal includes:

the remote terminal determines a target object;

after the target object is determined by the remote terminal, at least one of the following steps is further included:

Optionally, the remote terminal determines a target object, including:

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

The embodiment of the invention also provides a reconfiguration failure processing device which is applied to the remote terminal and comprises a memory, a transceiver and a processor;

if the reconfiguration failure is determined, third indication information is sent to the network equipment, and/or target object selection and/or reselection are performed;

Optionally, the reconfiguration failure includes at least one of:

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

If the end-to-end RRC reconfiguration between the remote terminal and the network equipment is determined to be failed, selecting and/or reselecting the target object;

If the end-to-end RRC reconfiguration failure between the remote terminal and the network equipment is determined, and the reason of the reconfiguration failure comprises that the Uu interface configuration between the remote terminal and the network equipment fails, selecting and/or reselecting a target object;

If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason for the reconfiguration failure only includes failure of direct communication interface parameter configuration of the remote terminal and the relay terminal, third indication information is sent to the network device, and/or selection and/or reselection of the target object are performed.

The end-to-end configuration used before the end-to-end reconfiguration signaling reception continues to be used.

If it is determined that the direct communication interface reconfiguration from the remote terminal to the relay terminal fails, continuing to use the direct communication interface configuration used before the direct communication interface reconfiguration, and sending third indication information to the network device through the relay terminal.

determining a target object;

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

the first processing unit is used for sending third indication information to the network equipment and/or selecting and/or reselecting the target object if the reconfiguration failure is determined;

The technical scheme of the invention has the beneficial effects that when the relay terminal determines that the reconfiguration fails, the relay terminal sends the first indication information for triggering the remote terminal to select and/or reselect the target object to the remote terminal, so that when the reconfiguration failure occurs, the remote terminal is triggered to select and/or reselect the target object, thereby ensuring that the system can normally operate after the reconfiguration failure in the relay scene, and/or when the relay terminal determines that the reconfiguration fails, the relay terminal sends the second indication information for indicating the relevant parameters of the reconfiguration failure to the network equipment, so that the network equipment can acquire the relevant parameters of the reconfiguration failure, and the relevant processing can be executed, thereby ensuring that the system can normally operate after the reconfiguration failure in the relay scene.

Drawings

Fig. 1 shows a schematic diagram of cellular network communications according to an embodiment of the present invention;

FIG. 2 shows a schematic diagram of direct communication of an embodiment of the present invention;

Fig. 3 is a schematic diagram of a terminal-to-network device relay according to an embodiment of the present invention;

Fig. 4 is a flowchart of a method for handling reconfiguration failure at a relay terminal side according to an embodiment of the present invention;

FIG. 5 shows one of the block diagrams of the terminal of an embodiment of the invention;

FIG. 6 is a block diagram of a reconfiguration failure handling apparatus according to an embodiment of the present invention;

FIG. 7 is a flowchart of a method for processing a remote terminal side reconfiguration failure according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of data interaction of a relay system according to an embodiment of the present invention;

FIG. 9 is a second diagram illustrating a data interaction of the relay system according to the embodiment of the present invention;

FIG. 10 is a third diagram illustrating a data interaction of the relay system according to the embodiment of the present invention;

FIG. 11 shows a second block diagram of a terminal according to an embodiment of the invention;

FIG. 12 is a second flowchart of a method for handling a remote terminal side reconfiguration failure according to an embodiment of the present invention;

FIG. 13 is a diagram showing a fourth exemplary embodiment of a data interaction of a relay system according to the present invention;

FIG. 14 is a diagram showing a fifth exemplary embodiment of a data interaction of a relay system according to the present invention;

FIG. 15 is a diagram showing a data interaction of a relay system according to an embodiment of the present invention;

fig. 16 shows a third block diagram of a terminal according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following 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, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In addition, the terms "system" and "network" are often used interchangeably herein.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, applicable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (GENERAL PACKET Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR) systems, and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved PACKET SYSTEM, EPS), 5G system (5 GS), etc. may also be included in the system.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may be made between the network device and the terminal device, each using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

In the embodiment of the invention, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, A and/or B, and can mean that A exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. 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.

Several communication techniques in the art are briefly described below:

(1) Cellular network communication

As shown in fig. 1, the cellular network communication mode, that is, the terminal and the network device perform uplink and downlink data/control information transmission through the Uu interface.

The Uu interface reconfiguration failure processing method in the cellular network is as follows:

The terminal is in a dual connectivity (E-UTRA NR dual connectivity with MCG using E-UTRA and SCG using NR, EN-DC) state where E-UTRA is MCG and NR is SCG:

If the terminal cannot process the radio resource control (Radio Resource Control, RRC) reconfiguration message carried over the signaling radio bearer 3 (SIGNALLING RADIO BEARER, SRB), the configuration used before the RRC reconfiguration message reception continues to be used. At this time, if the primary cell Group (MASTER CELL Group, MCG) transmission is not suspended, a secondary cell Group (Secondary Cell Group, SCG) failure process is initiated after the reconfiguration process is ended to report an SCG configuration error, and if the MCG transmission is suspended, the reconfiguration process is ended to initiate a connection reestablishment process (LTE connection reestablishment process).

If the terminal can not process the RRC reconfiguration message carried by the SRB1, the configuration used before the RRC reconfiguration message is received is continuously used, and the connection reestablishment process is initiated after the reconfiguration process is finished.

If the terminal receives an RRC reconfiguration from the NR, such as NR independent (NR standalone), NR-E-UTRA dual connectivity (NR-E-UTRA Dual Connectivity, NE-DC) or NR-NR dual connectivity (NR NR Dual Connectivity, NR-DC):

if the terminal cannot process the RRC reconfiguration message carried by the SRB3, the configuration used before the RRC reconfiguration message is received is continuously used. At this time, if the MCG transmission is not suspended, the SCG failure process is initiated after the reconfiguration process is ended to report the SCG configuration error, and if the MCG transmission is suspended, the reconfiguration process is ended to initiate the connection reestablishment process (NR connection reestablishment process).

If the terminal cannot process the RRC reconfiguration message carried through SRB1 or the higher-layer indication nas-container is invalid, continuing to use the configuration used before the RRC reconfiguration message is received, and performing the following operations:

If Access Stratum (AS) security is not activated, the UE enters an RRC IDLE state (RRC_IDLE) and the release cause is set to "other" (i.e., release cause is set to "other");

If AS security has been activated but SRB2 and data radio bearer (Data Radio Bearer, DRB) have not been established, the UE enters rrc_idle and release reason is set to RRC connection failure (i.e. release cause is set to "RRC connection failure");

In other cases, the UE initiates RRC reestablishment after the RRC reconfiguration procedure ends.

(2) Direct communication

As shown in fig. 2, direct communication refers to the manner in which nearby terminals can transmit data over a direct communication link (also referred to as Sidelink or PC 5) within a close range. The wireless interface corresponding to the Sidelink link is referred to as a direct communication interface (also referred to as Sidelink interface or PC5 interface).

(3) Relay

As shown in fig. 3, for the UE-to-Network Relay, a Uu interface is used as an interface between a Relay terminal and a Network device, and a direct communication interface (also referred to as Sidelink interface, or bypass interface, or PC5 interface) is used as an interface between the Relay terminal and a terminal to be relayed (or a remote terminal). The link (Uu link) between the relay and the network may be referred to as a Backhaul link (Backhaul link) for the remote terminal.

The method and the device (or terminal) are based on the same application, and because the principles of solving the problems by the method and the device (or terminal) are similar, the implementation of the device (or terminal) and the method can be referred to each other, and the repetition is not repeated.

As shown in fig. 4, an embodiment of the present invention provides a method for processing reconfiguration failure, which is applied to a relay terminal, and the method includes:

step 41, if the relay terminal determines that reconfiguration fails, the relay terminal sends first indication information to the remote terminal and/or the relay terminal sends second indication information to the network device.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

Optionally, in the case that the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails, the relay terminal may continue to use the Uu interface configuration before the Uu interface reconfiguration and send the second indication information to the network device.

Alternatively, in the case that the relay terminal determines that the reconfiguration of the direct communication interface from the relay terminal to the remote terminal fails, the relay terminal may continue to use the direct communication interface configuration used before the reconfiguration of the direct communication interface and send the first indication information to the remote terminal.

Alternatively, the first indication information may be carried by PC5-S (PC 5-Signaling) Signaling or PC5-RRC Signaling.

In this embodiment, when the relay terminal determines that the reconfiguration fails, the relay terminal sends first indication information for triggering the remote terminal to perform selection and/or reselection of the target object to the remote terminal, so that when the reconfiguration failure occurs, the remote terminal is triggered to perform selection and/or reselection of the target object to ensure that the system can normally operate after the reconfiguration failure in the relay scene, and/or when the relay terminal determines that the reconfiguration fails, the relay terminal sends second indication information for indicating relevant parameters of the reconfiguration failure to the network device, so that the network device can acquire relevant parameters of the reconfiguration failure, so as to perform relevant processing, and ensure that the system can normally operate after the reconfiguration failure in the relay scene.

The Uu interface reconfiguration fails;

The Uu interface reconfiguration failure cause;

a remote terminal identifier failed to be reconfigured;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The Uu interface reconfiguration failure may include, but is not limited to, one of a parameter configuration failure related to a relay, a parameter configuration failure related to a relay terminal direct communication link, and the like. The relay related parameter configuration failure may include, but is not limited to, a relay terminal configuration failure in Uu interface radio link control (Radio Link Control, RLC) channel, a relay terminal and remote terminal direct communication interface related configuration failure, a relay terminal mapping configuration failure between Uu interface RLC channel and direct communication interface PC5 RLC channel, etc.

The direct communication link identifier may be a combination identifier of a direct communication source destination address and a direct communication destination address, or the direct communication link identifier may be a direct communication destination address.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The parameter configuration failure related to the relay may include, but is not limited to, a configuration failure of the relay terminal in a Uu interface radio link control (Radio Link Control, RLC) channel, a configuration failure related to a direct communication interface between the relay terminal and a remote terminal, a configuration failure mapped between the Uu interface RLC channel and a direct communication interface PC5 RLC channel, and the like.

Specifically, if the relay terminal determines that the reconfiguration of the relay terminal at the Uu interface fails, the behavior of the relay terminal may adopt one of the following modes:

The first mode is that the relay terminal sends first indication information to the far-end terminal, wherein the first indication information is used for triggering the far-end terminal to select and/or reselect a target object, and the target object comprises a cell and/or the relay terminal.

For example, the first indication information may be used to indicate any of the following:

the remote terminal triggers cell selection and/or relay terminal selection;

the remote terminal triggers cell selection and/or relay terminal reselection;

The remote terminal triggers cell reselection and/or relay terminal selection;

the remote terminal triggers cell reselection and/or relay terminal reselection.

The second mode is that the relay terminal adopts different treatments according to the related parameters of Uu interface reconfiguration failure, and the specific steps are as follows:

If the relay terminal determines that the reconfiguration of the relay terminal at the Uu interface fails, and the reason of the reconfiguration failure includes failure of the Uu interface parameter configuration of the relay terminal, the same process may be adopted in the above manner, that is, the relay terminal sends first indication information to the remote terminal, where the first indication information is used to trigger the remote terminal to perform selection and/or reselection of a target object, where the target object includes a cell and/or the relay terminal.

Optionally, the configuration of the Uu interface parameters of the relay terminal comprises the configuration required by the Uu interface when the relay terminal does not work as a relay and/or the configuration required by the Uu interface when the relay terminal works as a relay. The configuration required by the Uu interface when the relay terminal does not work as a relay comprises but is not limited to measurement configuration, bearing configuration required by the Uu interface for data transmission of the relay terminal, and the like, and the configuration required by the Uu interface when the relay terminal works as a relay comprises but is not limited to mapping relation between a Uu interface RLC channel and a PC5 RLC channel, bearing configuration of the Uu interface for bearing data of a remote terminal, and the like.

In other cases, the relay terminal may send the first indication information to the remote terminal, and/or the relay terminal may send the second indication information to the network device.

For example, if the relay terminal determines that the reconfiguration of the Uu interface of the relay terminal fails, and the reason of the reconfiguration failure only includes parameter configuration failure related to the relay, the relay terminal sends first indication information to the remote terminal, and/or the relay terminal sends second indication information to the network device. Alternatively, the relay terminal may continue to use the Uu interface configuration before the Uu interface reconfiguration (e.g., the Uu interface configuration used before the RRC reconfiguration message is received), and send the second indication information to the network equipment.

Specifically, if the relay terminal determines that the reconfiguration of the relay terminal at the Uu interface fails, the behavior of the relay terminal may adopt at least one of the following modes:

The first mode is that the relay terminal sends second indication information to the network equipment through the Uu interface, wherein the second indication information carries relevant parameters of the RRC reconfiguration failure of the direct communication interface from the relay terminal to the remote terminal.

And if the direct communication interface configuration from the relay terminal to the remote terminal exists before the direct communication interface reconfiguration, the relay terminal continues to use the direct communication interface configuration used before the direct communication interface reconfiguration and sends first indication information to the remote terminal through the direct communication interface, wherein the first indication information is used for triggering the remote terminal to select and/or reselect a target object, and the target object comprises a cell and/or the relay terminal.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be configured to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network devices may include centralized unit (centralized unit, CU) nodes and Distributed Unit (DU) nodes, which may also be geographically separated.

The terminal (e.g., relay terminal, remote terminal, etc.) according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem, etc. The names of terminals may also be different in different systems, for example in a 5G system, a terminal may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as Personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal DIGITAL ASSISTANT, PDA) and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (ACCESS TERMINAL), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited.

The foregoing describes a method for handling reconfiguration failure at a relay terminal side according to the present invention, and the following description of the present embodiment will further explain the corresponding relay terminal with reference to the accompanying drawings.

Specifically, as shown in fig. 5, a terminal 500 according to an embodiment of the present invention is a relay terminal, and includes:

A sending unit 510, configured to send first indication information to the remote terminal and/or send second indication information to the network device if it is determined that reconfiguration fails;

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

The Uu interface reconfiguration fails;

The Uu interface reconfiguration failure cause;

a remote terminal identifier failed to be reconfigured;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the sending unit 510 is further configured to:

Optionally, the terminal 500 further includes:

And the processing unit is used for continuing to use the Uu interface configuration before Uu interface reconfiguration.

Optionally, the sending unit 510 is further configured to at least one of:

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. 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 integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

It should be noted that, the terminal provided by the embodiment of the present invention can implement all the method steps implemented by the embodiment of the method and achieve the same technical effects, and the parts and beneficial effects that are the same as those of the embodiment of the method in the embodiment are not described in detail herein.

In order to better achieve the above object, as shown in fig. 6, an embodiment of the present invention further provides a device for handling reconfiguration failure, which includes a memory 62, a transceiver 63, and a processor 61, wherein the memory 62 is used for storing a computer program, the transceiver 63 is used for receiving and transmitting data under the control of the processor 61, for example, the transceiver 63 is used for receiving and transmitting data under the control of the processor 61, and the processor 61 is used for reading the computer program in the memory 62 and performing the following operations:

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

The Uu interface reconfiguration fails;

The Uu interface reconfiguration failure cause;

a remote terminal identifier failed to be reconfigured;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the processor 61 is configured to read the computer program in the memory and perform any one of the following operations:

Optionally, the processor 61 is configured to read the computer program in the memory and perform the following operations:

Optionally, the processor 61 is configured to read the computer program in the memory and perform at least one of the following operations:

Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 61 and various circuits of memory represented by memory 62, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 63 may be a number of elements, i.e. including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including transmission media such as wireless channels, wired channels, optical cables, etc. The user interface 64 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 61 is responsible for managing the bus architecture and general processing, and the memory 62 may store data used by the processor 61 in performing operations.

Alternatively, the processor 61 may be a CPU (central processing unit), an ASIC (Application SPECIFIC INTEGRATED Circuit), an FPGA (Field-Programmable gate array) or a CPLD (Complex Programmable Logic Device ), and the processor may also employ a multi-core architecture.

The processor is operable to perform any of the methods provided by embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in a memory. The processor and the memory may also be physically separate.

It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

The embodiment of the invention also provides a processor readable storage medium, wherein the processor readable storage medium stores a computer program, and the computer program is used for enabling the processor to execute the reconfiguration failure processing method.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, non-volatile storage (NAND FLASH), solid State Disk (SSD)), etc.

The method for processing the reconfiguration failure in the embodiment of the present invention is described above on the relay terminal side, and the method for processing the reconfiguration failure on the remote terminal side will be further described below with reference to the accompanying drawings.

As shown in fig. 7, an embodiment of the present invention provides a method for processing reconfiguration failure, which is applied to a remote terminal, and the method includes:

And step 71, the remote terminal receives first indication information sent by the relay terminal, wherein the first indication information is sent under the condition that the relay terminal determines that reconfiguration fails.

And step 72, the remote terminal selects and/or reselects a target object according to the first indication information, wherein the target object is a cell and/or a relay terminal.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

Alternatively, the first indication information may be carried by PC5-S signaling or PC5-RRC signaling.

In this embodiment, the remote terminal may receive the first indication information sent by the relay terminal when determining that the reconfiguration fails and used for triggering the remote terminal to perform the selection and/or reselection of the target object, so that when the reconfiguration failure occurs, the remote terminal is triggered to perform the selection and/or reselection of the target object, so as to ensure that the system can operate normally after the reconfiguration failure in the relay scenario.

and the remote terminal determines a target relay terminal and/or a target cell according to the first indication information.

Specifically, once the remote terminal is triggered to perform selection and/or reselection of the target object, the remote terminal may initiate RRC establishment and/or RRC reestablishment through the determined target object. For example, the remote terminal may be triggered to perform at least any one of cell selection and/or relay terminal selection, cell selection and/or relay terminal reselection, cell reselection and/or relay terminal reselection.

Optionally, the determining the target object includes:

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

The condition may be an AS and Non-access stratum (NAS) criterion, for example, the AS layer criterion may be whether a channel quality between the remote terminal and the current target object is above a threshold.

For example, the remote terminal performs selection and/or reselection of the target object in the process of performing RRC establishment and/or RRC reestablishment, and if multiple relay terminals and/or cells meet the requirements, the remote terminal may preferably select a cell for RRC establishment and/or RRC reestablishment, or preferably select a relay terminal for RRC establishment and/or RRC reestablishment, or specifically select which target relay terminal and/or target cell for RRC reestablishment, depending on the terminal implementation.

Specifically, the remote terminal may preferably select to initiate RRC establishment and/or RRC reestablishment to the cell, or the remote terminal may preferably select to initiate RRC establishment and/or RRC reestablishment to a serving cell of the relay terminal through the relay terminal, or the remote terminal may select to initiate RRC establishment and/or RRC reestablishment to the cell, or to initiate RRC establishment and/or RRC reestablishment to a serving cell of the relay terminal through the relay terminal according to terminal implementation.

The following describes methods on the relay terminal and the remote terminal side of the present invention with reference to specific embodiments:

In the first embodiment, the relay terminal fails to reconfigure on the Uu interface, and as shown in fig. 8, the method includes:

Step 81, the network equipment sends RRC reconfiguration information to the relay terminal through Uu interface;

Taking the NR system as an example, the RRC reconfiguration procedure may use RRCReconfiguration messages.

Step 82, the relay terminal judges that the reconfiguration of the relay terminal at the Uu interface fails;

Specifically, if the relay terminal cannot interpret part of information in the RRC reconfiguration message received by the Uu interface, it may be determined that reconfiguration of the relay terminal on the Uu interface fails.

Step 83, the relay terminal sends first indication information to the remote terminal;

specifically, once the relay terminal determines that the reconfiguration of the relay terminal at the Uu interface fails, the relay terminal acts as follows:

if AS security is not activated, the UE enters RRC_IDLE and release cause is set to "other";

if AS security has been activated, but SRB2 and DRB have not been established, the UE enters RRC_IDLE and release cause is set to "RRC connection failure";

In addition, the relay terminal also needs to send first indication information to the remote terminal, wherein the first indication information is used for triggering the remote terminal to execute selection and/or reselection of a target object, and the target object comprises a cell and/or the relay terminal.

Alternatively, the first indication information may be carried by PC5-S signaling (such as PC5-S connection release signaling) or PC5-RRC signaling (such as PC5-RRC connection release signaling).

Step 84, the remote terminal performs the selection and/or reselection of the target object;

specifically, when the remote terminal receives the first indication information in step 83, the remote terminal may initiate RRC establishment and/or RRC reestablishment through the selected target relay terminal or target cell.

If the remote terminal simultaneously discovers a plurality of target relay terminals and/or target cells meeting the conditions, the remote terminal can further execute one of the following operations:

The method comprises the steps that a target cell is preferentially selected to initiate RRC reestablishment or RRC establishment;

preferentially selecting to initiate an RRC reestablishment or RRC establishment process to a serving cell of a target relay terminal through the target relay terminal;

Depending on the terminal implementation, it is determined to select the target cell, or initiate an RRC reestablishment or RRC establishment procedure with the target relay terminal towards the serving cell of the target relay terminal.

In the second embodiment, the relay terminal fails to reconfigure on the Uu interface, and as shown in fig. 9, the method includes:

Step 91, the network equipment sends RRC reconfiguration information to the relay terminal through Uu interface;

Step 92, the relay terminal determines that the reconfiguration of the relay terminal at the Uu interface fails;

Once the relay terminal judges that the relay terminal fails to reconfigure at the Uu interface, different treatments can be adopted according to the relevant parameters of the Uu interface reconfiguration failure, and the specific steps are as follows:

If the reason for the reconfiguration failure includes failure of the Uu interface parameter configuration of the relay terminal, optionally, step 93a and step 94 may be continuously performed, and otherwise, step 93b may be continuously performed.

The Uu interface parameter configuration of the relay terminal may include one or a combination of a configuration required by the Uu interface when the relay terminal does not work as a relay (such as measurement configuration, a bearer configuration required by data transmission of the relay terminal itself on the Uu interface, etc.), and a configuration required by the Uu interface when the relay terminal works as a relay (such as a mapping relationship between an RLC channel of the Uu interface and an RLC channel of the PC5, a bearer configuration of the Uu interface for carrying data of the remote terminal, etc.).

Specifically, other cases may refer to configuration failure related to the relay, such as configuration failure of a mapping relationship between Uu interface RLC channels and PC5 RLC channels, or configuration failure of a direct communication interface between the relay terminal and the remote terminal, and the like.

Step 93a, the relay terminal sends first indication information to the remote terminal;

Alternatively, only when the cause of the reconfiguration failure in step 92 includes a failure of the relay terminal Uu interface parameter configuration, it is performed. The relay terminal acts as follows in case of failure of Uu interface parameter configuration of the relay terminal due to reconfiguration failure:

Step 93b, the relay terminal sends second indication information to the network equipment;

Optionally, the relay terminal may continue to use the Uu interface configuration before Uu interface reconfiguration (such as the Uu interface configuration used before receiving the RRC reconfiguration message), and send second indication information to the network device, where the second indication information is used to indicate relevant parameters of Uu interface reconfiguration failure of the relay terminal;

The relevant parameters of Uu interface reconfiguration failure of the relay terminal comprise at least one of the following:

The Uu interface reconfiguration fails;

The Uu interface reconfiguration failure cause;

a remote terminal identifier failed to be reconfigured;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Step 94, the remote terminal performs the selection and/or reselection of the target object;

Alternatively, step 94 is performed only if step 93a is performed.

For example, the remote terminal may perform relay reselection, and may initiate an RRC establishment or RRC reestablishment procedure to the network device through the new relay terminal after selecting the new relay terminal. If the remote terminal is triggered to execute the selection and/or reselection of the target object, the remote terminal can initiate an RRC reestablishment or RRC establishment process through the selected target relay terminal or target cell.

preferentially selecting to initiate RRC connection reestablishment or RRC connection establishment process to a service cell of a target relay terminal through the target relay terminal;

In the third embodiment, the reconfiguration failure of the direct communication interface from the relay terminal to the remote terminal is shown in fig. 10, and the method includes:

step 101, a relay terminal sends a direct communication interface RRC reconfiguration message to a remote terminal;

taking the NR system as an example, the RRC reconfiguration procedure may use RRCReconfigurationSidelink messages.

Step 102, a relay terminal determines that the reconfiguration of a direct communication interface from the relay terminal to a remote terminal fails;

Specifically, if the remote terminal cannot interpret part of the information in the RRC reconfiguration message sent by the relay terminal, it may be determined that the reconfiguration of the direct communication interface from the relay terminal to the remote terminal fails. At this time, the remote terminal needs to send a reconfiguration failure message to the relay terminal, and if the reconfiguration failure message may use RRCReconfigurationFailureSidelink messages and indicate that the failure cause is a reconfiguration failure of the direct communication interface, the relay terminal may determine that the reconfiguration of the direct communication interface from the relay terminal to the remote terminal fails.

Step 103, the relay terminal executes the processing after the reconfiguration failure of the direct communication interface from the relay terminal to the remote terminal;

for failure of RRC reconfiguration of the direct communication interface of the relay terminal to the remote terminal, the relay terminal behavior may be one or a combination of the following:

Mode one, step 104a is performed.

If the configuration of the direct communication interface from the relay terminal to the remote terminal already exists before the reconfiguration of the direct communication interface, the configuration before the reconfiguration is continued to be used, and step 104b is performed.

104A, the relay terminal sends second indication information to the network equipment;

Optionally, the relay terminal sends second indication information to the network device through the Uu interface, the second indication information carrying relevant parameters of failure of RRC reconfiguration of the direct communication interface from the relay terminal to the remote terminal,

Wherein, the relevant parameters of the reconfiguration failure of the direct communication interface from the relay terminal to the remote terminal comprise at least one of the following:

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

104B, the relay terminal sends first indication information to the remote terminal;

Optionally, the remote terminal may trigger the remote terminal to perform the selection and/or reselection of the target object after receiving the direct communication interface reconfiguration message sent by the relay terminal in step 101 or after receiving the first indication information from the relay terminal in step 104 b.

It should be noted that if the remote terminal performs the above operation after step 101, step 104b may be omitted.

If the remote terminal executes relay reselection, the new relay terminal can initiate an RRC establishment or RRC reestablishment process to the network equipment through the new relay terminal after the new relay terminal is selected. If the remote terminal is triggered to execute the selection and/or reselection of the target object, the remote terminal can initiate an RRC reestablishment or RRC establishment process through the selected target relay terminal or target cell.

The foregoing embodiments are presented with respect to a method for handling reconfiguration failure according to the present invention, and the following embodiments will further describe a corresponding terminal thereof with reference to the accompanying drawings.

Specifically, as shown in fig. 11, a terminal 1100 according to an embodiment of the present invention is a remote terminal, and includes:

a receiving unit 1110, configured to receive first indication information sent by a relay terminal, where the first indication information is sent when the relay terminal determines that reconfiguration fails;

And the processing unit 1120 is configured to perform selection and/or reselection of a target object according to the first indication information, where the target object is a cell and/or a relay terminal.

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

Optionally, the processing unit 1120 is further configured to:

determining a target object according to the first indication information;

Optionally, the processing unit 1120 is further configured to:

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

With continued reference to fig. 6, the present embodiment provides a reconfiguration failure processing apparatus, which includes a memory 62, a transceiver 63, and a processor 61, wherein the memory 62 is configured to store a computer program, the transceiver 63 is configured to transmit and receive data under the control of the processor 61, for example, the transceiver 63 is configured to receive and transmit data under the control of the processor 61, and the processor 61 is configured to read the computer program in the memory 62 and perform the following operations:

Optionally, the reconfiguration failure includes at least one of:

the Uu interface reconfiguration of the relay terminal fails;

determining a target object according to the first indication information;

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

As shown in fig. 12, an embodiment of the present invention further provides a reconfiguration failure processing method, which is applied to a remote terminal, and includes:

step 121, if the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to the network device, and/or the remote terminal performs the selection and/or reselection of the target object.

Optionally, the reconfiguration failure includes at least one of:

Optionally, the method further includes that the remote terminal continues to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received, for example, if the remote terminal determines that the end-to-end Radio Resource Control (RRC) reconfiguration between the remote terminal and the network device fails, the remote terminal continues to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received, and sends third indication information to the network device.

In this embodiment, when the remote terminal determines that the reconfiguration fails, the remote terminal performs selection and/or reselection of the target object, so that when the reconfiguration failure occurs, the remote terminal is triggered to perform selection and/or reselection of the target object, so as to ensure that the system can normally operate after the reconfiguration failure in the relay scenario, and/or the remote terminal sends third indication information for indicating the relevant parameters of the reconfiguration failure to the network device, so that the network device can acquire the relevant parameters of the reconfiguration failure, so as to perform relevant processing, so as to ensure that the system can normally operate after the reconfiguration failure in the relay scenario.

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The end-to-end RRC reconfiguration includes, but is not limited to, end-to-end bearer configuration between the remote terminal and the network device, measurement configuration, mapping relationship between end-to-end bearers between the remote terminal and the network device and logical channels of the direct communication interface, etc.

Specifically, if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the remote terminal may behave in one of the following ways:

In the first mode, if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails, the remote terminal is triggered to select and/or reselect a target object, wherein the target object comprises a cell and/or a relay terminal.

For example, the remote terminal performs any of the following:

cell selection and/or relay terminal selection;

cell selection and/or relay terminal reselection;

cell reselection and/or relay terminal selection;

cell reselection and/or relay terminal reselection.

The second mode is that the remote terminal adopts different treatments according to the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network equipment, and the specific steps are as follows:

If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason of the reconfiguration failure includes that the end-to-end Uu interface configuration between the remote terminal and the network device fails, the remote terminal performs the same process in the above manner, that is, the remote terminal performs the target object selection and/or reselection.

In other cases, for example, if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason for the reconfiguration failure only includes failure of direct communication interface parameter configuration of the remote terminal and the relay terminal, the remote terminal sends third indication information to the network device, and/or the remote terminal performs selection and/or reselection of the target object.

Optionally, the third indication information may be carried by an end-to-end RRC signaling between the remote terminal and the network device.

Optionally, the remote terminal may continue to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received (e.g., continue to use the configuration used before the RRC reconfiguration message is received), and send third indication information to the network device, where the third indication information carries parameters related to the end-to-end RRC reconfiguration failure between the remote terminal and the network device;

Wherein, the relevant parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following:

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Specifically, if the relay terminal determines that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails, the relay terminal may perform at least one of the following modes:

If the remote terminal determines that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails, and the configuration of the direct communication interface from the remote terminal to the relay terminal exists before the reconfiguration of the direct communication interface, the remote terminal can continue to use the configuration of the direct communication interface used before the reconfiguration of the direct communication interface (such as the configuration used before the reception of the RRC reconfiguration message which continues to use the direct communication interface), and send end-to-end third indication information to the network equipment through the relay terminal, wherein the third indication information carries relevant parameters of the reconfiguration failure of the direct communication interface from the remote terminal to the relay terminal;

wherein the related parameters of the direct communication interface reconfiguration failure from the remote terminal to the relay terminal comprise at least one of the following:

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

And if the remote terminal determines that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails, triggering the remote terminal to select and/or reselect a target object, wherein the target object comprises a cell and/or the relay terminal.

the remote terminal determines a target object;

Optionally, the remote terminal determines a target object, including:

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

Wherein the condition may be AS and NAS layer criteria, such AS whether the channel quality between the remote terminal and the current target object is above a threshold.

The following describes a method for handling reconfiguration failure at a relay terminal side according to the present invention with reference to specific embodiments:

in the fourth embodiment, the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and as shown in fig. 13, the method includes:

Step 131, the network equipment sends an end-to-end RRC reconfiguration message to the far-end terminal through the relay terminal;

Taking the NR system as an example, the RRC reconfiguration procedure may use RRCReconfiguration messages. The end-to-end RRC reconfiguration signaling specifically refers to an end-to-end RRC reconfiguration signaling between the network device and the remote terminal, that is, the relay terminal is only responsible for forwarding and does not parse the RRC signaling.

Step 132, the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails;

specifically, if the remote terminal cannot interpret part of the information in the end-to-end RRC reconfiguration message between the remote terminal and the network device, it may be determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails.

Step 133, the remote terminal executes the processing after the end-to-end RRC reconfiguration failure between the remote terminal and the network equipment;

And the remote terminal judges that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails, and triggers the remote terminal to execute the selection and/or the reselection of the target object.

If the remote terminal performs relay reselection, after selecting a new relay terminal, the remote terminal may initiate an RRC establishment or RRC reestablishment procedure to the network device through the new relay terminal. If the remote terminal is triggered to execute the selection and/or reselection of the target object, the remote terminal can initiate an RRC reestablishment or RRC establishment process through the selected target relay terminal or target cell.

Embodiment five, namely, the end-to-end RRC reconfiguration failure between the remote terminal and the network equipment, and as shown in FIG. 14, the method comprises the following steps:

step 141, the network equipment sends an end-to-end RRC reconfiguration message to the far-end terminal through the relay terminal;

Step 142, the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails;

Step 143, the remote terminal executes the processing after the end-to-end RRC reconfiguration failure between the remote terminal and the network equipment;

For example, the remote terminal adopts different processes according to the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network equipment, and the specific steps are as follows:

if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason for the reconfiguration failure includes that the end-to-end Uu interface configuration between the remote terminal and the network device fails, the step 143a is continuously performed, and otherwise, the step 143b is continuously performed.

In particular, the end-to-end Uu interface configuration between the remote terminal and the network appliance may include at least one of:

end-to-end load configuration, measurement configuration, etc. between the remote terminal and the network device;

Mapping relationship between end-to-end bearers and direct communication interface logical channels between the remote terminal and the network device, etc.

Step 143a, the remote terminal executes the processing after the end-to-end RRC reconfiguration failure between the remote terminal and the network device;

And if the remote terminal judges that the end-to-end RRC reconfiguration between the remote terminal and the network equipment fails, triggering the remote terminal to execute the selection and/or the reselection of the target object.

Step 143b, the remote terminal sends the third end-to-end indication information to the network device;

for example, if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason for the reconfiguration failure only includes failure of direct communication interface parameter configuration of the remote terminal and the relay terminal, the remote terminal sends third indication information to the network device.

Specifically, the remote terminal may continue to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received (e.g., the configuration used before the RRC reconfiguration message is received), and send third indication information to the network device, where the third indication information carries parameters related to the end-to-end RRC reconfiguration failure between the remote terminal and the network device.

Wherein the parameters related to the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of:

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

In the sixth embodiment, the reconfiguration failure of the direct communication interface from the remote terminal to the relay terminal is shown in fig. 15, and the method includes:

Step 151, the remote terminal sends a direct communication interface RRC reconfiguration message to the relay terminal;

Step 152, the remote terminal determines that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails;

specifically, if the relay terminal cannot interpret part of the information in the RRC reconfiguration message sent by the remote terminal, it may be determined that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails. At this time, the relay terminal needs to send a reconfiguration failure message to the remote terminal, and if the reconfiguration failure message may use RRCReconfigurationFailureSidelink messages and indicate that the failure cause is a reconfiguration failure of the direct communication interface, the remote terminal determines that the reconfiguration of the direct communication interface from the remote terminal to the relay terminal fails.

Step 153, the remote terminal executes the processing after the reconfiguration failure of the direct communication interface from the remote terminal to the relay terminal, wherein the specific processing mode can be one of the following modes:

in one mode, if the remote terminal-to-relay terminal direct communication interface RRC configuration already exists before the remote terminal-to-relay terminal direct communication interface RRC reconfiguration, the remote terminal may continue to use the direct communication interface configuration used before the direct communication interface reconfiguration (e.g., continue to use) the configuration used before the direct communication interface RRC reconfiguration message reception, and continue to execute step 154.

And secondly, the remote terminal determines that the direct communication interface RRC reconfiguration from the remote terminal to the relay terminal fails, and triggers the remote terminal to execute the selection and/or reselection of the target object.

For the second mode, if the remote terminal is triggered to execute the selection and/or reselection of the target object, the remote terminal may initiate an RRC reestablishment or RRC establishment procedure through the selected target relay terminal or target cell.

Step 154, the remote terminal sends a third indication message to the network device through the relay terminal;

optionally, the remote terminal sends end-to-end third indication information to the network device, where the third indication information carries related parameters of reconfiguration failure of the direct communication interface from the remote terminal to the relay terminal;

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The foregoing embodiments are described with respect to the method for handling reconfiguration failure according to the present invention, and the following embodiments will further describe a corresponding terminal thereof with reference to the accompanying drawings.

Specifically, as shown in fig. 16, a terminal 1600 according to an embodiment of the present invention, which is a remote terminal, includes:

a first processing unit 1610, configured to send third indication information to the network device and/or perform selection and/or reselection of the target object if it is determined that reconfiguration fails;

Optionally, the reconfiguration failure includes at least one of:

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

Optionally, the first processing unit 1610 is further configured to:

Optionally, the terminal 1600 further includes:

And the second processing unit is used for continuously using the end-to-end configuration used before the end-to-end reconfiguration signaling is received.

Optionally, the first processing unit 1610 is further configured to:

determining a target object;

Optionally, the first processing unit 1610 is further configured to:

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

With continued reference to fig. 6, the present embodiment provides a reconfiguration failure processing apparatus, which includes a memory 62, a transceiver 63, and a processor 61, wherein the memory 62 is configured to store a computer program, the transceiver 63 is configured to receive and transmit data under the control of the processor 61, for example, the transceiver 63 is configured to receive and transmit data under the control of the processor 61, and the processor 61 is configured to read the computer program in the memory 62 and perform the following operations:

Optionally, the reconfiguration failure includes at least one of:

End-to-end reconfiguration failure;

reasons for end-to-end reconfiguration failure;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

The reason for the failure of the direct communication link configuration;

Failure of direct communication link configuration;

reconfiguring a failed relay link identifier;

The failed direct communication link identification is reconfigured.

determining a target object;

Preferentially selecting cells;

A relay terminal is preferentially selected;

depending on the terminal implementation.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Furthermore, it should be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order of description, but are not necessarily performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those of ordinary skill in the art that all or any of the steps or components of the methods and apparatus of the present invention may be implemented in hardware, firmware, software, or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, as would be apparent to one of ordinary skill in the art after reading this description of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for handling reconfiguration failures, applied to a relay terminal, characterized in that it includes:

If the relay terminal determines that the Uu interface reconfiguration of the relay terminal has failed, the relay terminal sends a first indication message to the remote terminal, and/or the relay terminal sends a second indication message to the network device;

The first indication information is used to trigger the remote terminal to select and/or reselect a target object, wherein the target object includes a cell and/or a relay terminal; the second indication information is used to indicate the relevant parameters of the reconfiguration failure.

The parameters related to the reconfiguration failure of the Uu interface of the relay terminal include at least one of the following:

Reasons for Uu interface reconfiguration failure;

The identifier of the remote terminal that failed to reconfigure;

The identifier of the relay link that failed to reconfigure;

Identifier of the direct communication link that failed to reconfigure.

2. The method according to claim 1, wherein the relevant parameters for the reconfiguration failure of the Uu interface of the relay terminal further include:

Uu interface reconfiguration failed.

3. The method according to claim 2, wherein the direct communication link identifier is a combination of the direct communication source and destination address and the direct communication target address; or, the direct communication link identifier is the direct communication target address.

4. The method according to claim 1, characterized in that, if the relay terminal determines that the Uu interface reconfiguration of the relay terminal has failed, the relay terminal sends a first indication message to the remote terminal, and/or, the relay terminal sends a second indication message to the network device, including any one of the following:

If the relay terminal determines that the Uu interface reconfiguration of the relay terminal has failed, the relay terminal sends a first indication message to the remote terminal.

If the relay terminal determines that the relay terminal Uu interface reconfiguration has failed, and the reason for the reconfiguration failure includes the failure of the relay terminal Uu interface parameter configuration, then the relay terminal sends a first indication message to the remote terminal.

If the relay terminal determines that the Uu interface of the relay terminal has failed to reconfigure, and the reason for the reconfiguration failure only includes the failure of parameter configuration related to relay, then the relay terminal sends a first indication message to the remote terminal, and/or the relay terminal sends a second indication message to the network device.

5. The method according to claim 1 or 4, characterized in that it further comprises:

The relay terminal continues to use the Uu interface to reconfigure the previous Uu interface configuration.

6. The method according to claim 1, wherein the first indication information is carried via PC5-S signaling or PC5-RRC signaling.

7. A method for handling reconfiguration failure, applied to a remote terminal, characterized in that it includes:

The remote terminal receives a first indication message sent by the relay terminal; wherein the first indication message is sent by the relay terminal when it determines that the Uu interface reconfiguration of the relay terminal has failed;

The remote terminal selects and/or reselects a target object according to the first indication information; wherein the target object is a cell and/or a relay terminal.

8. The method according to claim 7, wherein the remote terminal selects and/or reselects a target object according to the first indication information, comprising:

The remote terminal determines the target object based on the first indication information;

After determining the target object, it also includes at least one of the following:

If the target object is a relay terminal, the remote terminal initiates Radio Resource Control (RRC) establishment and/or RRC reconstruction to the serving cell of the relay terminal through the relay terminal;

If the target object is a cell, the remote terminal initiates RRC establishment and/or RRC reconstruction to the cell.

9. The method according to claim 8, wherein determining the target object includes:

If there are multiple target objects that meet the conditions, then a unique target object is selected from among them. The specific selection principle can be any of the following:

Prioritize choosing residential communities;

Prioritize relay terminals;

It depends on the terminal implementation.

10. The method according to claim 7, wherein the first indication information is carried via PC5-S signaling or PC5-RRC signaling.

11. A method for handling reconfiguration failures, applied to a remote terminal, characterized in that it includes:

If the remote terminal determines that the end-to-end Radio Resource Control (RRC) reconfiguration between the remote terminal and the network device has failed, it sends a third indication message to the network device, and/or the remote terminal performs target object selection and/or reselection.

The third indication information is used to indicate the relevant parameters of the reconfiguration failure; the target object includes the cell and/or relay terminal;

The parameters related to the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following:

Reasons for end-to-end reconfiguration failure;

The identifier of the relay link that failed to reconfigure;

Identifier of the direct communication link that failed to reconfigure.

12. The method according to claim 11, wherein the relevant parameters for end-to-end RRC reconfiguration failure between the remote terminal and the network device further include at least one of the following:

End-to-end reconfiguration failed;

Direct communication link configuration failed.

13. The method according to claim 12, wherein the direct communication link identifier is a combination of the direct communication source and destination address and the direct communication target address; or, the direct communication link identifier is the direct communication target address.

14. The method according to claim 11, characterized in that, if the remote terminal determines that the end-to-end Radio Resource Control (RRC) reconfiguration between the remote terminal and the network device has failed, the remote terminal sends third indication information to the network device, and/or the remote terminal performs target object selection and/or reselection, including any one of the following:

If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device has failed, the remote terminal performs target object selection and/or reselection.

If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device has failed, and the reason for the reconfiguration failure includes the failure of the end-to-end Uu interface configuration between the remote terminal and the network device, then the remote terminal performs the selection and/or reselection of the target object.

If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device has failed, and the reason for the reconfiguration failure is only the failure of the configuration of the direct communication interface parameters between the remote terminal and the relay terminal, then the remote terminal sends a third indication message to the network device, and/or the remote terminal performs target object selection and/or reselection.

15. The method according to claim 11 or 14, characterized in that it further comprises:

The remote terminal continues to use the end-to-end configuration used before receiving the end-to-end reconfiguration signaling.

16. The method according to claim 11, wherein the third indication information is carried via end-to-end RRC signaling between the remote terminal and the network device.

17. The method according to claim 11, wherein the remote terminal performs target object selection and/or reselection, comprising:

The remote terminal identifies the target object;

After the remote terminal determines the target object, it also includes at least one of the following:

18. The method according to claim 17, wherein the remote terminal determines the target object, comprising:

Prioritize choosing residential communities;

Prioritize relay terminals;

It depends on the terminal implementation.

19. A reconfiguration failure processing device, applied to a relay terminal, characterized in that it includes a memory, a transceiver, and a processor;

The memory stores computer programs; the transceiver, under the control of the processor, sends and receives data; the processor reads the computer programs from the memory and performs the following operations:

If it is determined that the Uu interface reconfiguration of the relay terminal has failed, a first indication message is sent to the remote terminal, and/or a second indication message is sent to the network device.

Reasons for Uu interface reconfiguration failure;

The identifier of the remote terminal that failed to reconfigure;

The identifier of the relay link that failed to reconfigure;

Identifier of the direct communication link that failed to reconfigure.

20. The apparatus according to claim 19, wherein the relevant parameters for the reconfiguration failure of the Uu interface of the relay terminal further include:

Uu interface reconfiguration failed.

21. The apparatus according to claim 20, wherein the direct communication link identifier is a combination of a direct communication source address and a direct communication target address; or, the direct communication link identifier is a direct communication target address.

22. The apparatus of claim 19, wherein the processor is configured to read a computer program in the memory and perform any of the following operations:

If it is determined that the Uu interface reconfiguration of the relay terminal fails, a first indication message is sent to the remote terminal.

If it is determined that the relay terminal Uu interface reconfiguration failed, and the reason for the reconfiguration failure includes the failure of the relay terminal Uu interface parameter configuration, then a first indication message is sent to the remote terminal.

If it is determined that the Uu interface of the relay terminal has failed to reconfigure, and the reason for the failure is only the failure of parameter configuration related to the relay, then a first indication message is sent to the remote terminal, and/or a second indication message is sent to the network device.

23. The apparatus according to claim 19 or 22, wherein the processor is configured to read a computer program in the memory and perform the following operations:

Continue using the Uu interface to reconfigure the previous Uu interface configuration.

24. A terminal, characterized in that the terminal is a relay terminal, comprising:

The sending unit is configured to send a first indication message to the remote terminal and/or send a second indication message to the network device if it is determined that the Uu interface reconfiguration of the relay terminal has failed.

Reasons for Uu interface reconfiguration failure;

The identifier of the remote terminal that failed to reconfigure;

The identifier of the relay link that failed to reconfigure;

Identifier of the direct communication link that failed to reconfigure.

25. A reconfiguration failure processing device, applied to a remote terminal, characterized in that it includes a memory, a transceiver, and a processor;

Receive first indication information sent by the relay terminal; wherein, the first indication information is sent by the relay terminal when it determines that the Uu interface reconfiguration of the relay terminal has failed;

Based on the first instruction information, the target object is selected and/or reselected; wherein the target object is a cell and/or a relay terminal.

26. The apparatus according to claim 25, wherein the processor is configured to read a computer program in the memory and perform the following operations:

Based on the first instruction information, the target object is determined;

If the target object is a relay terminal, then the relay terminal initiates Radio Resource Control (RRC) establishment and/or RRC reconstruction to the serving cell of the relay terminal.

If the target object is a cell, then an RRC establishment and/or RRC reconstruction is initiated to the cell.

27. The apparatus according to claim 26, wherein the processor is configured to read a computer program in the memory and perform the following operations:

Prioritize choosing residential communities;

Prioritize relay terminals;

It depends on the terminal implementation.

28. A terminal, characterized in that the terminal is a remote terminal, comprising:

A receiving unit is configured to receive first indication information sent by a relay terminal; wherein the first indication information is sent by the relay terminal when it determines that the Uu interface reconfiguration of the relay terminal has failed;

The processing unit is configured to select and/or reselect a target object based on the first indication information; wherein the target object is a cell and/or a relay terminal.

29. A reconfiguration failure handling device, applied to a remote terminal, characterized in that it includes a memory, a transceiver, and a processor;

If it is determined that the end-to-end Radio Resource Control (RRC) reconfiguration between the remote terminal and the network device has failed, a third indication message is sent to the network device, and/or the target object is selected and/or reselected.

Reasons for end-to-end reconfiguration failure;

The identifier of the relay link that failed to reconfigure;

Identifier of the direct communication link that failed to reconfigure.

30. The apparatus according to claim 29, wherein the relevant parameters for end-to-end RRC reconfiguration failure between the remote terminal and the network device further include at least one of the following:

End-to-end reconfiguration failed;

Direct communication link configuration failed.

31. The apparatus according to claim 30, wherein the direct communication link identifier is a combination of a direct communication source address and a direct communication target address; or, the direct communication link identifier is a direct communication target address.

32. The apparatus of claim 29, wherein the processor is configured to read a computer program in the memory and perform any of the following operations:

If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, then the target object is selected and/or reselected.

If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason for the reconfiguration failure includes the failure of the end-to-end Uu interface configuration between the remote terminal and the network device, then the target object is selected and/or reselected.

If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason for the reconfiguration failure is only the failure of the direct communication interface parameter configuration between the remote terminal and the relay terminal, then a third indication message is sent to the network device, and/or the target object is selected and/or reselected.

33. The apparatus according to claim 29 or 32, wherein the processor is configured to read a computer program in the memory and perform the following operations:

Continue using the end-to-end configuration used before receiving end-to-end reconfiguration signaling.

34. The apparatus according to claim 29, wherein the processor is configured to read a computer program in the memory and perform the following operations:

Identify the target object;

35. The apparatus according to claim 34, wherein the processor is configured to read a computer program in the memory and perform the following operations:

Prioritize choosing residential communities;

Prioritize relay terminals;

It depends on the terminal implementation.

36. A terminal, characterized in that the terminal is a remote terminal, comprising:

The first processing unit is configured to send a third indication message to the network device and/or select and/or reselect the target object if it is determined that the end-to-end Radio Resource Control (RRC) reconfiguration between the remote terminal and the network device has failed.

Reasons for end-to-end reconfiguration failure;

The identifier of the relay link that failed to reconfigure;

Identifier of the direct communication link that failed to reconfigure.

37. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to execute the reconfiguration failure handling method according to any one of claims 1 to 18.