Method, device and terminal for handling reconfiguration failure

Abstract

The application provides a reconfiguration failure processing method, device and terminal; wherein the method comprises: if a relay terminal determines reconfiguration failure, the relay terminal sends first indication information to a remote terminal, and / or the relay terminal sends second indication information to a network device; wherein the first indication information is used to trigger the remote terminal to select and / or reselect a target object, the target object comprising a cell and / or a relay terminal; the second indication information is used to indicate related parameters of the reconfiguration failure. The application can ensure that the system can normally operate after reconfiguration failure in a relay scenario.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a reconfiguration failure processing method and device and terminal. BACKGROUND

[0002] In order to expand network coverage, one solution is to introduce UE-to-Network relay. The relay itself can be a terminal with relay function (also known as sidelink relay). 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 known as remote terminal) uses the direct communication interface (also known as Sidelink interface, or bypass interface, or PC5 interface). After the introduction of UE-to-Network Relay, the remote terminal accesses the network through the relay terminal. However, there is currently no specific solution for how to handle the reconfiguration failure of the relay terminal and / or the remote terminal. SUMMARY

[0003] The present application provides a reconfiguration failure processing method, device and terminal, which solves the problem of how to handle the reconfiguration failure of the relay terminal and / or the remote terminal, and there is currently no specific solution.

[0004] Embodiments of the present application provide a reconfiguration failure processing method applied to a relay terminal, comprising:

[0005] If the relay terminal determines that the 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;

[0006] The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object includes a cell and / or a relay terminal; and the second indication information is used to indicate related parameters of the reconfiguration failure.

[0007] Optionally, the reconfiguration failure includes at least one of the following:

[0008] The Uu interface of the relay terminal fails to reconfigure;

[0009] The direct communication interface of the relay terminal to the remote terminal fails to reconfigure.

[0010] Optionally, the related parameters of the Uu interface reconfiguration failure of the relay terminal include at least one of the following:

[0011] The Uu interface fails to reconfigure;

[0012] The reason for the Uu interface reconfiguration failure;

[0013] remote terminal identifier of the failed reconfiguration;

[0014] relay link identifier of the failed reconfiguration;

[0015] direct communication link identifier of the failed reconfiguration.

[0016] Optionally, the related parameters of the failed reconfiguration of the direct communication interface of the relay terminal to the remote terminal comprise at least one of:

[0017] cause of the failed direct communication link configuration;

[0018] failed direct communication link configuration;

[0019] relay link identifier of the failed reconfiguration;

[0020] direct communication link identifier of the failed reconfiguration.

[0021] Optionally, the direct communication link identifier is a combined identifier of a direct communication source address and a direct communication target address; or, the direct communication link identifier is a direct communication target address.

[0022] Optionally, if the relay terminal determines the failed reconfiguration, the relay terminal sends first indication information to the remote terminal, and / or the relay terminal sends second indication information to a network device, comprising any of:

[0023] if the relay terminal determines that the relay terminal Uu interface reconfiguration fails, the relay terminal sends first indication information to the remote terminal;

[0024] if the relay terminal determines that the relay terminal Uu interface reconfiguration fails, and the cause of the failed reconfiguration includes failure of the relay terminal Uu interface parameter configuration, the relay terminal sends first indication information to the remote terminal;

[0025] if the relay terminal determines that the relay terminal Uu interface reconfiguration fails, and the cause of the failed reconfiguration only includes failure of the relay-related parameter configuration, the relay terminal sends first indication information to the remote terminal, and / or the relay terminal sends second indication information to a network device.

[0026] Optionally, the method further comprises:

[0027] the relay terminal continues to use the Uu interface configuration before the Uu interface reconfiguration.

[0028] Optionally, if the relay terminal determines the failed reconfiguration, the relay terminal sends first indication information to the remote terminal, and / or the relay terminal sends second indication information to a network device, comprising at least one of:

[0029] If the relay terminal determines that the direct communication interface reconfiguration from the relay terminal to the remote terminal fails, the relay terminal continues to use the direct communication interface configuration used before the direct communication interface reconfiguration, and the relay terminal sends first indication information to the remote terminal through the direct communication interface;

[0030] If the relay terminal determines that the direct communication interface reconfiguration from the relay terminal to the remote terminal fails, the relay terminal sends second indication information to the network device.

[0031] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0032] Embodiments of the present application also provide a reconfiguration failure processing apparatus applied to a relay terminal, comprising a memory, a transceiver, and a processor.

[0033] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0034] If it is determined that the reconfiguration fails, first indication information is sent to a remote terminal, and / or second indication information is sent to a network device.

[0035] The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object comprises a cell and / or a relay terminal; and the second indication information is used to indicate related parameters of the reconfiguration failure.

[0036] Optionally, the reconfiguration failure comprises at least one of the following:

[0037] The Uu interface reconfiguration of the relay terminal fails;

[0038] The direct communication interface reconfiguration from the relay terminal to the remote terminal fails.

[0039] Optionally, the related parameters of the Uu interface reconfiguration failure of the relay terminal comprise at least one of the following:

[0040] The Uu interface reconfiguration fails;

[0041] The reason for the Uu interface reconfiguration failure;

[0042] The remote terminal identifier of the reconfiguration failure;

[0043] The relay link identifier of the reconfiguration failure;

[0044] The direct communication link identifier of the reconfiguration failure.

[0045] Optionally, the related parameter of the relay terminal to the remote terminal direct communication interface reconfiguration failure includes at least one of the following:

[0046] The reason of the direct communication link configuration failure;

[0047] The direct communication link configuration failure;

[0048] The reconfiguration failure relay link identifier;

[0049] The reconfiguration failure direct communication link identifier.

[0050] Optionally, 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.

[0051] Optionally, the processor is configured to read the computer program in the memory and perform any of the following operations:

[0052] If it is determined that the relay terminal Uu interface reconfiguration fails, the first indication information is sent to the remote terminal;

[0053] If it is determined that the relay terminal Uu interface reconfiguration fails, and the reconfiguration failure reason includes the failure of the relay terminal Uu interface parameter configuration, the first indication information is sent to the remote terminal;

[0054] If it is determined that the relay terminal Uu interface reconfiguration fails, and the reconfiguration failure reason only includes the failure of the relay related parameter configuration, the first indication information is sent to the remote terminal, and / or the second indication information is sent to the network device.

[0055] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0056] The Uu interface configuration before the Uu interface reconfiguration is continued to be used.

[0057] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0058] If it is determined that the relay terminal to the remote terminal direct communication interface reconfiguration fails, the direct communication interface configuration used before the direct communication interface reconfiguration is continued to be used, and the first indication information is sent to the remote terminal through the direct communication interface;

[0059] If it is determined that the relay terminal to the remote terminal direct communication interface reconfiguration fails, the second indication information is sent to the network device.

[0060] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0061] The embodiment of the application further provides a terminal, which is a relay terminal, comprising:

[0062] a sending unit configured to send first indication information to a remote terminal and / or second indication information to a network device if it is determined that the reconfiguration fails;

[0063] The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object comprises a cell and / or a relay terminal; and the second indication information is used to indicate a related parameter of the reconfiguration failure.

[0064] The embodiment of the application further provides a processor-readable storage medium, which stores a computer program, and the computer program is used to make the processor execute the reconfiguration failure processing method.

[0065] The embodiment of the application further provides a reconfiguration failure processing method, which is applied to a remote terminal and comprises:

[0066] The remote terminal receives first indication information sent by a relay terminal; and the first indication information is sent by the relay terminal if it is determined that the reconfiguration fails.

[0067] The remote terminal selects and / or reselects a target object according to the first indication information; and the target object is a cell and / or a relay terminal.

[0068] Optionally, the reconfiguration failure comprises at least one of the following:

[0069] The Uu interface of the relay terminal fails to reconfigure;

[0070] The direct communication interface of the relay terminal to the remote terminal fails to reconfigure.

[0071] Optionally, the remote terminal selects and / or reselects a target object according to the first indication information, comprising:

[0072] The remote terminal determines a target object according to the first indication information.

[0073] After the target object is determined, the method further comprises at least one of the following:

[0074] 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;

[0075] If the target object is a cell, the remote terminal initiates RRC establishment and / or RRC reestablishment to the cell.

[0076] Optionally, the determining the target object comprises:

[0077] If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0078] The cell is preferentially selected.

[0079] The relay terminal is preferentially selected.

[0080] Depending on the terminal implementation.

[0081] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0082] The embodiment of the application also provides a processing device for reconfiguration failure, applied to a remote terminal, comprising a memory, a transceiver and a processor.

[0083] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0084] Receive first indication information sent by a relay terminal; wherein the first indication information is sent by the relay terminal in the case that the relay terminal determines reconfiguration failure;

[0085] According to the first indication information, a target object is selected and / or reselected; wherein the target object is a cell and / or a relay terminal.

[0086] Optionally, the reconfiguration failure comprises at least one of the following:

[0087] The Uu interface reconfiguration failure of the relay terminal;

[0088] The direct communication interface reconfiguration failure of the relay terminal to the remote terminal.

[0089] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0090] According to the first indication information, a target object is determined;

[0091] If the target object is a relay terminal, a radio resource control (RRC) establishment and / or RRC reestablishment is initiated to the serving cell of the relay terminal through the relay terminal;

[0092] If the target object is a cell, the RRC setup and / or RRC reestablishment is initiated to the cell.

[0093] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0094] If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0095] The cell is preferentially selected.

[0096] The relay terminal is preferentially selected.

[0097] Depending on the terminal implementation.

[0098] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0099] The embodiment of the application further provides a terminal, which is a remote terminal, comprising:

[0100] 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 in a case where the relay terminal determines that the reconfiguration fails.

[0101] A processing unit is configured to perform selection and / or reselection of a target object according to the first indication information, wherein the target object is a cell and / or a relay terminal.

[0102] The embodiment of the application further provides a processor-readable storage medium, which stores a computer program, and the computer program is configured to make the processor execute the reconfiguration failure processing method.

[0103] The embodiment of the application further provides a reconfiguration failure processing method, which is applied to a remote terminal and comprises the following steps.

[0104] If the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to a network device, and / or the remote terminal performs selection and / or reselection of a target object.

[0105] The third indication information is used to indicate related parameters of the reconfiguration failure, and the target object comprises a cell and / or a relay terminal.

[0106] Optionally, the reconfiguration failure comprises at least one of the following:

[0107] End-to-end radio resource control (RRC) reconfiguration failure between the remote terminal and the network device.

[0108] The direct communication interface reconfiguration of the remote terminal to the relay terminal fails.

[0109] Optionally, the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following:

[0110] End-to-end reconfiguration failure;

[0111] Reason for end-to-end reconfiguration failure;

[0112] Direct communication link configuration failure;

[0113] Reconfiguration failure relay link identification;

[0114] Reconfiguration failure direct communication link identification.

[0115] Optionally, the related parameters of the direct communication interface reconfiguration failure of the remote terminal to the relay terminal include at least one of the following:

[0116] Reason for direct communication link configuration failure;

[0117] Direct communication link configuration failure;

[0118] Reconfiguration failure relay link identification;

[0119] Reconfiguration failure direct communication link identification.

[0120] Optionally, the direct communication link identification is a combined identification of a direct communication source address and a direct communication target address; or the direct communication link identification is a direct communication target address.

[0121] Optionally, if the remote terminal determines reconfiguration failure, 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 of the following:

[0122] If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the remote terminal performs target object selection and / or reselection;

[0123] 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 reconfiguration failure includes the failure of the end-to-end Uu interface configuration between the remote terminal and the network device, the remote terminal performs target object selection and / or reselection;

[0124] If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the cause of the reconfiguration failure only includes a failure of the remote terminal and the relay terminal to directly communicate interface parameter configuration, the remote terminal sends third indication information to the network device, and / or the remote terminal selects and / or reselects a target object.

[0125] Optionally, the method further comprises:

[0126] The remote terminal continues to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received.

[0127] Optionally, if the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to the network device, comprising:

[0128] If the remote terminal determines that the direct communication interface reconfiguration between the remote terminal and the relay terminal fails, the remote terminal continues to use the direct communication interface configuration used before the direct communication interface reconfiguration, and the remote terminal sends third indication information to the network device through the relay terminal.

[0129] Optionally, the third indication information is carried through end-to-end RRC signaling between the remote terminal and the network device.

[0130] Optionally, the remote terminal selects and / or reselects a target object, comprising:

[0131] The remote terminal determines a target object;

[0132] After the remote terminal determines the target object, the method further comprises at least one of the following:

[0133] If the target object is a relay terminal, the remote terminal initiates a radio resource control (RRC) setup and / or RRC reestablishment through the relay terminal to a serving cell of the relay terminal;

[0134] If the target object is a cell, the remote terminal initiates RRC setup and / or RRC reestablishment to the cell.

[0135] Optionally, the remote terminal determines a target object, comprising:

[0136] If there are multiple target objects that meet the conditions, a unique target object is selected from the multiple target objects that meet the conditions, and the specific selection principle can be any one of the following:

[0137] A cell is preferentially selected;

[0138] A relay terminal is preferentially selected;

[0139] Depending on terminal implementation.

[0140] The embodiment of the present application also provides a reconfiguration failure processing apparatus applied to a remote terminal, comprising a memory, a transceiver and a processor.

[0141] The memory is used for storing a computer program; the transceiver is used for transceiving data under the control of the processor; and the processor is used for reading the computer program in the memory and performing the following operations:

[0142] If it is determined that the reconfiguration fails, third indication information is sent to a network device, and / or selection and / or reselection of a target object are performed.

[0143] 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.

[0144] Optionally, the reconfiguration failure comprises at least one of the following:

[0145] End-to-end radio resource control (RRC) reconfiguration failure between the remote terminal and the network device;

[0146] Direct communication interface reconfiguration failure of the remote terminal to the relay terminal.

[0147] Optionally, the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device comprise at least one of the following:

[0148] End-to-end reconfiguration failure;

[0149] Cause of the end-to-end reconfiguration failure;

[0150] Direct communication link configuration failure;

[0151] Relay link identification of the reconfiguration failure;

[0152] Direct communication link identification of the reconfiguration failure.

[0153] Optionally, the related parameters of the direct communication interface reconfiguration failure of the remote terminal to the relay terminal comprise at least one of the following:

[0154] Cause of the direct communication link configuration failure;

[0155] Direct communication link configuration failure;

[0156] Relay link identification of the reconfiguration failure;

[0157] Direct communication link identification of the reconfiguration failure.

[0158] Optionally, the direct communication link identification is a combined identification of a direct communication source address and a direct communication target address; or the direct communication link identification is a direct communication target address.

[0159] Optionally, the processor is configured to read the computer program in the memory and perform any one of the following operations:

[0160] If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, selection and / or reselection of a target object is performed.

[0161] 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 a failure of end-to-end Uu interface configuration between the remote terminal and the network device, selection and / or reselection of a target object is performed.

[0162] 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 a failure of direct communication interface parameter configuration between the remote terminal and the relay terminal, third indication information is sent to the network device, and / or selection and / or reselection of a target object is performed.

[0163] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0164] The end-to-end configuration used before the end-to-end reconfiguration signaling is continued to be used.

[0165] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0166] If it is determined that the direct communication interface reconfiguration between the remote terminal and the relay terminal fails, the direct communication interface configuration used before the direct communication interface reconfiguration is continued to be used, and third indication information is sent to the network device through the relay terminal.

[0167] Optionally, the third indication information is carried through end-to-end RRC signaling between the remote terminal and the network device.

[0168] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0169] A target object is determined.

[0170] If the target object is a relay terminal, a radio resource control (RRC) setup and / or RRC reestablishment is initiated to a serving cell of the relay terminal through the relay terminal.

[0171] If the target object is a cell, an RRC setup and / or RRC reestablishment is initiated to the cell.

[0172] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0173] If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the specific selection principle can be any one of the following:

[0174] Prior selection of a cell;

[0175] Prior selection of a relay terminal;

[0176] Depending on terminal implementation.

[0177] The embodiment of the application also provides a terminal, which is a remote terminal, comprising:

[0178] A first processing unit is configured to send third indication information to a network device if it is determined that the reconfiguration fails, and / or to select and / or reselect a target object.

[0179] The third indication information is used to indicate relevant parameters of the reconfiguration failure, and the target object comprises a cell and / or a relay terminal.

[0180] The embodiment of the application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to make the processor execute the reconfiguration failure processing method.

[0181] The above technical solution of the application has the following beneficial effects: when the relay terminal determines that the reconfiguration fails, the relay terminal sends first indication information to the remote terminal to trigger the remote terminal to select and / or reselect a target object, so that when the reconfiguration fails, the remote terminal is triggered to select and / or reselect a target object, thereby ensuring that the system can normally operate after the reconfiguration failure in a relay scenario; and / or when the relay terminal determines that the reconfiguration fails, the relay terminal sends second indication information to the network device to indicate relevant parameters of the reconfiguration failure, so that the network device can obtain the relevant parameters of the reconfiguration failure, thereby performing relevant processing, and ensuring that the system can normally operate after the reconfiguration failure in a relay scenario. BRIEF DESCRIPTION OF DRAWINGS

[0182] Figure 1 A schematic diagram of cellular network communication of the embodiment of the application is shown;

[0183] Figure 2 A schematic diagram of direct communication of the embodiment of the application is shown;

[0184] Figure 3 A schematic diagram of terminal-to-network device relay of the embodiment of the application is shown;

[0185] Figure 4 A flowchart of the reconfiguration failure processing method on the relay terminal side of the embodiment of the application is shown;

[0186] Figure 5 Figure 1 is a block diagram illustrating a terminal according to an embodiment of the present application;

[0187] Figure 6 Figure 2 is a block diagram illustrating a reconfiguration failure processing device according to an embodiment of the present application;

[0188] Figure 7 Figure 3 is a flowchart illustrating a remote terminal side reconfiguration failure processing method according to an embodiment of the present application;

[0189] Figure 8 Figure 4 is a schematic diagram illustrating data interaction of a relay system according to an embodiment of the present application;

[0190] Figure 9 Figure 5 is a schematic diagram illustrating data interaction of a relay system according to an embodiment of the present application;

[0191] Figure 10 Figure 6 is a schematic diagram illustrating data interaction of a relay system according to an embodiment of the present application;

[0192] Figure 11 Figure 7 is a block diagram illustrating a terminal according to an embodiment of the present application;

[0193] Figure 12 Figure 8 is a flowchart illustrating a remote terminal side reconfiguration failure processing method according to an embodiment of the present application;

[0194] Figure 13 Figure 9 is a schematic diagram illustrating data interaction of a relay system according to an embodiment of the present application;

[0195] Figure 14 Figure 10 is a schematic diagram illustrating data interaction of a relay system according to an embodiment of the present application;

[0196] Figure 15 Figure 11 is a schematic diagram illustrating data interaction of a relay system according to an embodiment of the present application;

[0197] Figure 16 Figure 12 is a block diagram illustrating a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0198] In order to make the technical problems solved by the present application, technical solutions and advantages clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of embodiments of the present application. Therefore, it should 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 present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted.

[0199] It should be understood that the terms "one embodiment" or "an embodiment" as may appear throughout the specification are used to reference a particular feature, structure, or characteristic including implementations of the applications and which can be included in, or are part of, at least one embodiment of the present applications. Thus, any appearance of the phrases "in one embodiment" or "in an embodiment" is not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is said to have been added in or invoked in one embodiment, it can apply to other embodiments as well.

[0200] In various embodiments of the present application, it should be understood that the magnitude of the serial number of the following processes does not mean the order of execution, the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0201] In addition, the terms "system" and "network" are often used interchangeably herein.

[0202] The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc. Among these various systems, there are terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0203] The network device and the terminal device can each use one or more antennas for multi-input multi-output (MIMO) transmission, which can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). According to the form and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or can be diversity transmission or precoding transmission or beamforming transmission, etc.

[0204] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0205] In the embodiments of the present application, the term "a plurality of" means two or more, and other quantifiers are similar.

[0206] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0207] The following briefly describes several communication technologies in the art:

[0208] (1) Cellular network communication

[0209] As shown in Figure 1 , the cellular network communication mode, that is, the terminal and the network device transmit uplink and downlink data / control information through the Uu interface.

[0210] The processing mode of Uu interface reconfiguration failure in the cellular network is as follows:

[0211] If the terminal is in the dual connectivity (EN-DC) state of E-UTRA as MCG and NR as SCG (EN-DC):

[0212] If the terminal cannot process the RRC reconfiguration message carried through the signalling radio bearer 3 (SRB), it continues to use the configuration used before the RRC reconfiguration message is received. At this time, if the master cell group (MCG) transmission is not suspended, the SCG failure procedure is initiated after the reconfiguration procedure ends, to report the SCG configuration error; if the MCG transmission is suspended, the connection reestablishment procedure (LTE connection reestablishment procedure) is initiated after the reconfiguration procedure ends.

[0213] If the terminal cannot process the RRC reconfiguration message carried through the SRB1, it continues to use the configuration used before the RRC reconfiguration message is received, and initiates the connection reestablishment procedure after the reconfiguration procedure ends.

[0214] If the terminal receives the RRC reconfiguration from the NR, such as NR standalone, NR-E-UTRA dual connectivity (NE-DC) or NR-NR dual connectivity (NR-DC):

[0215] If the terminal cannot process the RRC reconfiguration message carried through the SRB3, it continues to use the configuration used before the RRC reconfiguration message is received. At this time, if the MCG transmission is not suspended, the SCG failure procedure is initiated after the reconfiguration procedure ends, to report the SCG configuration error; if the MCG transmission is suspended, the connection reestablishment procedure (NR connection reestablishment procedure) is initiated after the reconfiguration procedure ends.

[0216] If the terminal cannot process the RRC reconfiguration message carried through the SRB1 or the higher layer indicates that the nas-container is invalid, it continues to use the configuration used before the RRC reconfiguration message is received, and performs the following operations:

[0217] If the access stratum (AS) security is not activated, the UE enters the RRC idle state (RRC_IDLE), and the release cause is set to "other" (i.e. the release cause is set to "other");

[0218] If AS security has been activated but SRB2 and Data Radio Bearers (DRBs) have not been established, the UE enters RRC_IDLE and the release cause is set to RRC connection failure (i.e. release cause is set to "RRC connection failure");

[0219] In other cases, the UE initiates RRC re-establishment after the end of the RRC reconfiguration procedure.

[0220] (2) Direct communication

[0221] As shown in the following table, direct communication refers to a way that terminals in proximity can perform data transmission within a close range through a direct communication link (also referred to as Sidelink or PC5). 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). Figure 2

[0222] (3) Relay

[0223] As shown in the following table, for a UE-to-Network Relay, the interface between the relay terminal and the network device uses a Uu interface, and the interface between the relay terminal and the relayed terminal (or remote terminal) uses a direct communication interface (also referred to as Sidelink interface, or sidelink interface, or PC5 interface). The link (Uu link) between the relay and the network can be referred to as a backhaul link (Backhaul link or Uu backhaul link) for the remote terminal. Figure 3

[0224] The present application provides a reconfiguration failure processing method, device and terminal, which solves the problem of how to process the reconfiguration failure of a relay terminal and / or a remote terminal, and there is currently no specific solution.

[0225] The method and the device (or the terminal) are based on the same application concept, and the principles of the method and the device (or the terminal) for solving the problem are similar. Therefore, the implementation of the device (or the terminal) and the method can be mutually referred to, and the repeated parts will not be described again.

[0226] As shown in the following table, embodiments of the present application provide a reconfiguration failure processing method applied to a relay terminal, which comprises the following steps: Figure 4

[0227] Step 41: If the relay terminal determines that the 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.

[0228] ​​​The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object includes a cell and / or a relay terminal.

[0229] Optionally, the reconfiguration failure includes at least one of the following:

[0230] The Uu interface reconfiguration failure of the relay terminal;

[0231] The direct communication interface reconfiguration failure of the relay terminal to the remote terminal.

[0232] Optionally, in a case where the relay terminal determines that the Uu interface reconfiguration failure of the relay terminal occurs, the relay terminal can continue to use the Uu interface configuration before the Uu interface reconfiguration, and send second indication information to a network device.

[0233] Optionally, in a case where the relay terminal determines that the direct communication interface reconfiguration failure of the relay terminal to the remote terminal occurs, the relay terminal can continue to use the direct communication interface configuration used before the direct communication interface reconfiguration, and send first indication information to the remote terminal.

[0234] Optionally, the first indication information can be carried through PC5-S (PC5-Signaling) signaling or PC5-RRC signaling.

[0235] In this embodiment, when the relay terminal determines the reconfiguration failure, the relay terminal sends first indication information to the remote terminal, the first indication information being used to trigger the remote terminal to select and / or reselect a target object, so that when the reconfiguration failure occurs, the remote terminal is triggered to select and / or reselect the target object, so as to ensure that the system can normally operate after the reconfiguration failure in the relay scenario; and / or when the relay terminal determines the reconfiguration failure, the relay terminal sends second indication information to a network device, the second indication information being used to indicate related parameters of the reconfiguration failure, so that the network device can obtain the related parameters of the reconfiguration failure, so as to perform related processing, so as to ensure that the system can normally operate after the reconfiguration failure in the relay scenario.

[0236] Optionally, the related parameters of the Uu interface reconfiguration failure of the relay terminal include at least one of the following:

[0237] The Uu interface reconfiguration failure;

[0238] The reason for the Uu interface reconfiguration failure;

[0239] The remote terminal identifier of the reconfiguration failure;

[0240] The relay link identifier of the reconfiguration failure;

[0241] The identifier of the failed reconfiguration of the direct communication link.

[0242] The cause of the failed reconfiguration of the Uu interface can include, but is not limited to, one of the following: failure of a parameter configuration irrelevant to the relay, failure of a parameter configuration related to the relay, failure of a parameter configuration related to the direct communication link of the relay terminal, and the like. The failure of the parameter configuration related to the relay can include, but is not limited to, the following: failure of a Radio Link Control (RLC) channel configuration of the relay terminal on the Uu interface, failure of a direct communication interface related configuration of the relay terminal and the remote terminal, failure of a configuration of mapping between the RLC channel of the Uu interface and the PC5 RLC channel of the direct communication interface of the relay terminal, and the like.

[0243] The identifier of the direct communication link can be a combined identifier of a direct communication source destination address and a direct communication target address, or the identifier of the direct communication link can be the direct communication target address.

[0244] Optionally, the related parameters of the failed reconfiguration of the direct communication interface of the relay terminal to the remote terminal include at least one of the following:

[0245] The cause of the failed configuration of the direct communication link;

[0246] The failed configuration of the direct communication link;

[0247] The identifier of the failed reconfiguration of the relay link;

[0248] The identifier of the failed reconfiguration of the direct communication link.

[0249] The identifier of the direct communication link can be a combined identifier of a direct communication source destination address and a direct communication target address, or the identifier of the direct communication link can be the direct communication target address.

[0250] Optionally, if the relay terminal determines that the reconfiguration fails, the relay terminal sends first indication information to the remote terminal, and / or the relay terminal sends second indication information to a network device, including any of the following:

[0251] If the relay terminal determines that the relay terminal Uu interface reconfiguration fails, the relay terminal sends first indication information to the remote terminal;

[0252] If the relay terminal determines that the relay terminal Uu interface reconfiguration fails, and the cause of the failed reconfiguration includes failure of the Uu interface parameter configuration of the relay terminal, the relay terminal sends first indication information to the remote terminal;

[0253] If the relay terminal determines that the relay terminal Uu interface reconfiguration fails, and the reason for the reconfiguration failure only includes relay-related parameter configuration failure, the relay terminal sends first indication information to the remote terminal, and / or the relay terminal sends second indication information to the network device.

[0254] The relay-related parameter configuration failure can include, but is not limited to, relay terminal Uu interface radio link control (RLC) channel configuration failure, relay terminal and remote terminal direct communication interface related configuration failure, relay terminal Uu interface RLC channel and direct communication interface PC5 RLC channel mapping configuration failure, and the like.

[0255] Specifically, if the relay terminal determines that the relay terminal Uu interface reconfiguration fails, the behavior of the relay terminal can adopt one of the following ways:

[0256] Way one: the relay terminal sends first indication information to the remote terminal, and the first indication information is used to trigger the remote terminal to select and / or reselect a target object, the target object including a cell and / or a relay terminal.

[0257] For example, the first indication information can be used to indicate any of the following:

[0258] The remote terminal triggers cell selection and / or relay terminal selection.

[0259] The remote terminal triggers cell selection and / or relay terminal reselection.

[0260] The remote terminal triggers cell reselection and / or relay terminal selection.

[0261] The remote terminal triggers cell reselection and / or relay terminal reselection.

[0262] Way two: the relay terminal adopts different processing according to the Uu interface reconfiguration failure related parameters, specifically as follows:

[0263] If the relay terminal determines that the relay terminal Uu interface reconfiguration fails, and the reason for the reconfiguration failure includes relay terminal Uu interface parameter configuration failure, the same processing as the above way one can be adopted, that is, the relay terminal sends first indication information to the remote terminal, and the first indication information is used to trigger the remote terminal to select and / or reselect a target object, the target object including a cell and / or a relay terminal.

[0264] Optionally, the relay terminal Uu interface parameter configuration includes: configuration required for the Uu interface when the relay terminal does not work as a relay, and / or configuration required for the Uu interface when the relay terminal works as a relay. The configuration required for the Uu interface when the relay terminal does not work as a relay includes but is not limited to: measurement configuration, bearer configuration required for the relay terminal's own data transmission on the Uu interface, etc.; the configuration required for the Uu interface when the relay terminal works as a relay includes but is not limited to: mapping relationship between the Uu interface RLC channel and the PC5 RLC channel, bearer configuration of the Uu interface for carrying remote terminal data, etc.

[0265] In other cases, the relay terminal can send first indication information to the remote terminal, and / or the relay terminal sends second indication information to the network device.

[0266] For example: if the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails, and the reason for the reconfiguration failure only includes relay-related parameter configuration failure, 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 relay terminal can continue to use the Uu interface configuration before the 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.

[0267] Optionally, if the relay terminal determines that the 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, including at least one of the following:

[0268] If the relay terminal determines that the direct communication interface reconfiguration of the relay terminal to the remote terminal fails, the relay terminal continues to use the direct communication interface configuration used before the direct communication interface reconfiguration, and the relay terminal sends first indication information to the remote terminal through the direct communication interface;

[0269] If the relay terminal determines that the direct communication interface reconfiguration of the relay terminal to the remote terminal fails, the relay terminal sends second indication information to the network device.

[0270] Specifically, if the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails, the behavior of the relay terminal can adopt at least one of the following ways:

[0271] Way one: the relay terminal sends second indication information to the network device through the Uu interface, and the second indication information carries the related parameters of the direct communication interface RRC reconfiguration failure of the relay terminal to the remote terminal.

[0272] The second mode: if the direct communication interface configuration of the relay terminal to the remote terminal has existed 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, the first indication information being used to trigger the remote terminal to select and / or reselect a target object, the target object including a cell and / or a relay terminal.

[0273] The network device related to the embodiments of the present application can be a base station, which can include a plurality of cells serving terminals. According to different application scenarios, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices through one or more sectors over an air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets as a router between wireless terminal devices and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device related to the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (LTE) system, or a 5G base station (gNB) in a next generation system, or a home evolved base station (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application are not limited. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0274] The terminals involved in the embodiments of this application (such as relay terminals, remote terminals, etc.) can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminals may differ in different systems; for example, in a 5G system, a terminal can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but this application does not limit the terminology.

[0275] The above describes the method for handling reconfiguration failure on the relay terminal side of the present invention. The following embodiment will further explain the corresponding relay terminal with reference to the accompanying drawings.

[0276] Specifically, such as Figure 5 As shown, a terminal 500 according to an embodiment of the present invention, the terminal being a relay terminal, includes:

[0277] The sending unit 510 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 reconfiguration has failed.

[0278] The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object includes a cell and / or a relay terminal; and the second indication information is used to indicate a related parameter of the reconfiguration failure.

[0279] Optionally, the reconfiguration failure includes at least one of the following:

[0280] a Uu interface reconfiguration failure of the relay terminal;

[0281] a direct communication interface reconfiguration failure of the relay terminal to the remote terminal.

[0282] Optionally, the related parameter of the Uu interface reconfiguration failure of the relay terminal includes at least one of the following:

[0283] a Uu interface reconfiguration failure;

[0284] a cause of the Uu interface reconfiguration failure;

[0285] a remote terminal identifier of the reconfiguration failure;

[0286] a relay link identifier of the reconfiguration failure;

[0287] a direct communication link identifier of the reconfiguration failure.

[0288] Optionally, the related parameter of the direct communication interface reconfiguration failure of the relay terminal to the remote terminal includes at least one of the following:

[0289] a cause of a direct communication link configuration failure;

[0290] a direct communication link configuration failure;

[0291] a relay link identifier of the reconfiguration failure;

[0292] a direct communication link identifier of the reconfiguration failure.

[0293] Optionally, the direct communication link identifier is a combined identifier of a direct communication source destination address and a direct communication target address; or the direct communication link identifier is a direct communication target address.

[0294] Optionally, the sending unit 510 is further used to perform any one of the following:

[0295] if it is determined that the Uu interface reconfiguration failure of the relay terminal occurs, sending first indication information to the remote terminal;

[0296] if it is determined that the Uu interface reconfiguration failure of the relay terminal occurs and a cause of the reconfiguration failure includes a failure of Uu interface parameter configuration of the relay terminal, sending first indication information to the remote terminal;

[0297] If it is determined that the relay terminal Uu interface reconfiguration fails, and the reason for the reconfiguration failure only includes a parameter configuration failure related to the relay, first indication information is sent to the remote terminal, and / or second indication information is sent to the network device.

[0298] Optionally, the terminal 500 further includes:

[0299] The processing unit is configured to continue using the Uu interface configuration before the Uu interface reconfiguration.

[0300] Optionally, the sending unit 510 is further configured to perform at least one of the following:

[0301] If it is determined that the relay terminal direct communication interface reconfiguration to the remote terminal fails, the direct communication interface configuration used before the direct communication interface reconfiguration is continued to be used, and first indication information is sent to the remote terminal through the direct communication interface.

[0302] If it is determined that the relay terminal direct communication interface reconfiguration to the remote terminal fails, second indication information is sent to the network device.

[0303] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0304] It should be noted that the division of units in the embodiments of the present application is illustrative, and is merely a logical function division. Actual implementation can have another division manner. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0305] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application, essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program codes that can be stored in the medium.

[0306] It should be noted that the terminal provided by the embodiment of the present application can realize all the method steps realized by the method embodiment and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described in detail.

[0307] In order to better achieve the above purpose, as shown in the Figure 6 The embodiment of the present application also provides a reconfiguration failure processing device, which comprises a memory 62, a transceiver 63 and a processor 61; the memory 62 is used for storing a computer program; the transceiver 63 is used for transceiving data under the control of the processor 61; the transceiver 63 is used for receiving and sending 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:

[0308] If it is determined that the reconfiguration fails, first indication information is sent to the remote terminal, and / or second indication information is sent to the network device;

[0309] 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 a relay terminal; and the second indication information is used for indicating a related parameter of the reconfiguration failure.

[0310] Optionally, the reconfiguration failure comprises at least one of the following:

[0311] The Uu interface reconfiguration failure of the relay terminal;

[0312] The direct communication interface reconfiguration failure of the relay terminal to the remote terminal.

[0313] Optionally, the related parameter of the Uu interface reconfiguration failure of the relay terminal comprises at least one of the following:

[0314] The Uu interface reconfiguration failure;

[0315] The reason for the Uu interface reconfiguration failure;

[0316] The remote terminal identifier of the reconfiguration failure;

[0317] The relay link identifier of the reconfiguration failure;

[0318] The direct communication link identifier of the reconfiguration failure.

[0319] Optionally, the related parameter of the direct communication interface reconfiguration failure of the relay terminal to the remote terminal comprises at least one of the following:

[0320] The reason for the direct communication link configuration failure;

[0321] The direct communication link configuration failure;

[0322] reconfiguration-failed relay link identification;

[0323] reconfiguration-failed direct communication link identification.

[0324] Optionally, the direct communication link identification is a combined identification of a direct communication source address and a direct communication target address; or, the direct communication link identification is a direct communication target address.

[0325] Optionally, the processor 61 is configured to read the computer program in the memory and perform any one of the following operations:

[0326] if it is determined that the relay terminal Uu interface reconfiguration fails, sending first indication information to the remote terminal;

[0327] if it is determined that the relay terminal Uu interface reconfiguration fails, and the cause of the reconfiguration failure includes failure of the relay terminal Uu interface parameter configuration, sending first indication information to the remote terminal;

[0328] if it is determined that the relay terminal Uu interface reconfiguration fails, and the cause of the reconfiguration failure only includes failure of the relay-related parameter configuration, sending first indication information to the remote terminal, and / or sending second indication information to the network device.

[0329] Optionally, the processor 61 is configured to read the computer program in the memory and perform the following operations:

[0330] continuing to use the Uu interface configuration before the Uu interface reconfiguration.

[0331] Optionally, the processor 61 is configured to read the computer program in the memory and perform at least one of the following operations:

[0332] if it is determined that the relay terminal to the remote terminal direct communication interface reconfiguration fails, 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;

[0333] if it is determined that the relay terminal to the remote terminal direct communication interface reconfiguration fails, sending second indication information to the network device.

[0334] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0335] wherein, in Figure 6In particular embodiments, bus architecture can include any number of interconnected buses and bridges, specifically, various circuitry of the one or more processors represented by the processor 61 and the memory represented by the memory 62 are linked together. The bus architecture can also link various other circuitry such as peripheral devices, voltage regulators, and power management circuitry, and the like, which are well known in the art, and thus, are not further described herein. The bus interface provides an interface. The transceiver 63 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, and the like. The user interface 64 can also be an interface capable of connecting to the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like, for different user devices.

[0336] The processor 61 is responsible for managing the bus architecture and general processing, and the memory 62 can store data used by the processor 61 in performing operations.

[0337] Optionally, the processor 61 can be a CPU (Central Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0338] The processor is used to execute any of the methods provided by the embodiments of the application according to the executable instructions obtained by calling the computer program stored in the memory. The processor and the memory can also be physically arranged separately.

[0339] It should be noted that the above-mentioned device provided by the embodiments of the application can realize all the method steps realized by the above-mentioned method embodiments, and can achieve the same technical effects, and thus, the same parts and beneficial effects in the embodiments will not be described in detail.

[0340] The embodiments of the application also provide a processor readable storage medium, which stores a computer program, and the computer program is used to make the processor execute the above-mentioned reconfiguration failure processing method.

[0341] The processor-readable storage medium can be any available medium or data storage device that a processor can access, including but not limited to a magnetic storage (e.g., floppy disks, hard disks, tape, MO, etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, NAND FLASH, SSD, etc.), etc.

[0342] The method for handling the reconfiguration failure of the embodiment of the application is introduced from the relay terminal side, and the method for handling the reconfiguration failure from the remote terminal side will be further described below with reference to the drawings.

[0343] As shown in FIG. 7, the embodiment of the application provides a method for handling the reconfiguration failure, applied to a remote terminal, and the method comprises the following steps. Figure 7

[0344] Step 71: The remote terminal receives first indication information sent by the relay terminal; wherein the first indication information is sent by the relay terminal in the case of determining the reconfiguration failure.

[0345] 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.

[0346] Optionally, the reconfiguration failure comprises at least one of the following:

[0347] The Uu interface reconfiguration failure of the relay terminal;

[0348] The direct communication interface reconfiguration failure of the relay terminal to the remote terminal.

[0349] Optionally, the first indication information can be carried through PC5-S signaling or PC5-RRC signaling.

[0350] In this embodiment, the remote terminal can receive the first indication information sent by the relay terminal in the case of determining the reconfiguration failure, which is used to trigger the remote terminal to select and / or reselect a target object, so that when the reconfiguration failure occurs, the remote terminal is triggered to select and / or reselect a target object, so as to ensure that the system can normally operate after the reconfiguration failure in the relay scenario.

[0351] Optionally, the remote terminal selects and / or reselects a target object according to the first indication information, comprising:

[0352] The remote terminal determines a target relay terminal and / or a target cell according to the first indication information.

[0353] After determining the target object, the following at least one is further included:​

[0354] If the target object is a relay terminal, the remote terminal initiates radio resource control (RRC) setup and / or RRC reestablishment with a serving cell of the relay terminal via the relay terminal.

[0355] If the target object is a cell, the remote terminal initiates RRC setup and / or RRC reestablishment with the cell.

[0356] Specifically, once the remote terminal is triggered to select and / or reselect a target object, the remote terminal can initiate RRC setup and / or RRC reestablishment with the determined target object. For example, the remote terminal can be triggered to perform at least one of the following: cell selection and / or relay terminal selection; cell selection and / or relay terminal reselection; cell reselection and / or relay terminal selection; and cell reselection and / or relay terminal reselection.

[0357] Optionally, the determining the target object comprises:

[0358] If there are multiple target objects that satisfy the condition, a unique target object is selected from the multiple target objects that satisfy the condition, and the selection principle can be any one of the following:

[0359] A cell is preferentially selected.

[0360] A relay terminal is preferentially selected.

[0361] It depends on terminal implementation.

[0362] The condition can be AS and non-access stratum (NAS) criteria, and the AS layer criterion can be whether the channel quality between the remote terminal and the current target object is higher than a threshold.

[0363] For example, during the RRC setup and / or RRC reestablishment process, the remote terminal performs selection and / or reselection of a target object, and if multiple relay terminals and / or cells satisfy the requirement at the same time, the remote terminal can preferentially select a cell for RRC setup and / or RRC reestablishment; or preferentially select a relay terminal for RRC setup and / or RRC reestablishment; or the specific selection of which target relay terminal and / or target cell for RRC reestablishment depends on terminal implementation.

[0364] Specifically, the remote terminal can prefer to initiate RRC setup and / or RRC reestablishment to the cell; or the remote terminal can prefer to initiate RRC setup and / or RRC reestablishment to the serving cell of the relay terminal through the relay terminal; or the remote terminal selects to initiate RRC setup and / or RRC reestablishment to the cell or to the serving cell of the relay terminal through the relay terminal according to terminal implementation.

[0365] The method of the relay terminal and the remote terminal will be described below in combination with specific embodiments.

[0366] Embodiment one: the relay terminal fails in Uu interface reconfiguration; as shown in the figure, the method comprises the following steps: Figure 8

[0367] Step 81: the network device sends an RRC reconfiguration message to the relay terminal through a Uu interface;

[0368] Taking an NR system as an example, the RRC reconfiguration process can use an RRCReconfiguration message.

[0369] Step 82: the relay terminal judges that the relay terminal fails in Uu interface reconfiguration;

[0370] Specifically, if the relay terminal cannot interpret part of the information in the RRC reconfiguration message received by the Uu interface, it can be judged that the relay terminal fails in Uu interface reconfiguration.

[0371] Step 83: the relay terminal sends first indication information to the remote terminal;

[0372] Specifically, once the relay terminal judges that the relay terminal fails in Uu interface reconfiguration, the relay terminal behaves as follows:

[0373] If the AS security is not activated, the UE enters RRC_IDLE, and the release cause is set to "other";

[0374] If the AS security has been activated, but SRB2 and DRB have not been established, the UE enters RRC_IDLE, and the release cause is set to "RRC connection failure";

[0375] In other cases, the UE initiates RRC reestablishment after the end of the RRC reconfiguration process.

[0376] In addition, the relay terminal also needs to send first indication information to the remote terminal, which is used to trigger the remote terminal to perform selection and / or reselection of target objects; wherein the target objects include cells and / or relay terminals. ​

[0377] Optionally, the first indication information can be carried through PC5-S signaling (such as PC5-S connection release signaling) or PC5-RRC signaling (such as PC5-RRC connection release signaling).

[0378] Step 84: The remote terminal performs selection and / or reselection of a target object.

[0379] Specifically, after receiving the first indication information in step 83, the remote terminal can initiate RRC establishment and / or RRC reestablishment through the selected target relay terminal or target cell.

[0380] If the remote terminal simultaneously finds multiple target relay terminals and / or target cells that meet the conditions, the remote terminal can also perform one of the following operations:

[0381] Preferentially selecting a target cell to initiate an RRC reestablishment or RRC establishment process;

[0382] Preferentially selecting a target relay terminal to initiate an RRC reestablishment or RRC establishment process to the serving cell of the target relay terminal;

[0383] Depending on the terminal implementation, determining to select a target cell or to initiate an RRC reestablishment or RRC establishment process to the serving cell of the target relay terminal through a target relay terminal.

[0384] Embodiment two: Uu interface reconfiguration failure of the relay terminal; as shown in the figure, the method comprises: Figure 9

[0385] Step 91: The network device sends an RRC reconfiguration message to the relay terminal through a Uu interface;

[0386] Taking an NR system as an example, the RRC reconfiguration process can use an RRCReconfiguration message.

[0387] Step 92: The relay terminal determines that the relay terminal fails in Uu interface reconfiguration;

[0388] Specifically, if the relay terminal cannot interpret part of the information in the RRC reconfiguration message received through the Uu interface, it can be judged that the relay terminal fails in Uu interface reconfiguration.

[0389] Once the relay terminal judges that the relay terminal fails in Uu interface reconfiguration, different processing can be adopted according to the related parameters of the Uu interface reconfiguration failure, which is as follows:

[0390] ​If the cause of the reconfiguration failure includes a failure of the relay terminal Uu interface parameter configuration, then steps 93a and 94 can be optionally performed; otherwise, step 93b can be performed.

[0391] The relay terminal Uu interface parameter configuration can include one or a combination of the following: configurations required for the Uu interface when the relay terminal is not working as a relay (such as measurement configurations, bearer configurations required for the relay terminal's own data transmission on the Uu interface, etc.); configurations required for the Uu interface when the relay terminal is working as a relay (such as mapping relationships between Uu interface RLC channels and PC5 RLC channels, bearer configurations for the Uu interface to carry remote terminal data, etc.).

[0392] Specifically, the other case can refer to a failure of a configuration related to relaying, such as a failure of the mapping relationship configuration between Uu interface RLC channels and PC5 RLC channels, or a failure of the configuration of the direct communication interface between the relay terminal and the remote terminal, etc.

[0393] Step 93a: The relay terminal sends first indication information to the remote terminal.

[0394] Optionally, this is performed only when the cause of the reconfiguration failure in step 92 includes a failure of the relay terminal Uu interface parameter configuration. When the cause of the reconfiguration failure includes a failure of the relay terminal Uu interface parameter configuration, the relay terminal behaves as follows:

[0395] If the AS security is not activated, the UE enters RRC_IDLE, and the release cause is set to "other";

[0396] If the AS security has been activated, but SRB2 and DRB have not been established, the UE enters RRC_IDLE, and the release cause is set to "RRC connection failure";

[0397] In other cases, the UE initiates RRC reestablishment after the end of the RRC reconfiguration process.

[0398] In addition, the relay terminal also needs to send first indication information to the remote terminal, and the first indication information is used to trigger the remote terminal to perform selection and / or reselection of a target object; wherein the target object includes a cell and / or a relay terminal.

[0399] Optionally, the first indication information can be carried through PC5-S signaling (such as PC5-S connection release signaling) or PC5-RRC signaling (such as PC5-RRC connection release signaling).

[0400] Step 93b: The relay terminal sends second indication information to the network device.

[0401] Optionally, the relay terminal can continue to use the Uu interface configuration before the 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, the second indication information being used to indicate the related parameters of the Uu interface reconfiguration failure of the relay terminal;

[0402] The related parameters of the Uu interface reconfiguration failure of the relay terminal include at least one of the following:

[0403] Uu interface reconfiguration failure;

[0404] Reason for Uu interface reconfiguration failure;

[0405] Remote terminal identifier of reconfiguration failure;

[0406] Relay link identifier of reconfiguration failure;

[0407] Direct communication link identifier of reconfiguration failure.

[0408] Step 94: the remote terminal performs selection and / or reselection of target objects;

[0409] Optionally, only after step 93a is performed, step 94 is performed.

[0410] For example: the remote terminal can perform relay reselection, and after selecting a new relay terminal, the remote terminal can initiate an RRC establishment or RRC reestablishment process through the new relay terminal to the network device. If the remote terminal is triggered to perform selection and / or reselection of target objects, the remote terminal can initiate an RRC reestablishment or RRC establishment process through the selected target relay terminal or target cell.

[0411] If the remote terminal simultaneously finds multiple target relay terminals and / or target cells that meet the conditions, the remote terminal can also perform one of the following operations:

[0412] Preferentially selecting a target cell to initiate an RRC reestablishment or RRC establishment process;

[0413] Preferentially selecting to initiate an RRC connection reestablishment or RRC connection establishment process through a target relay terminal to the serving cell of the target relay terminal;

[0414] Depending on terminal implementation, it is determined to select a target cell or to initiate an RRC reestablishment or RRC establishment process through a target relay terminal to the serving cell of the target relay terminal.

[0415] Embodiment three: Uu interface reconfiguration failure of relay terminal to remote terminal; as shown in the figure, the method comprises: Figure 10

[0416] ​Step 101: The relay terminal sends a direct communication interface RRC reconfiguration message to the remote terminal;

[0417] Taking the NR system as an example, the RRC reconfiguration process can use the RRCReconfigurationSidelink message.

[0418] Step 102: The relay terminal determines that the direct communication interface reconfiguration from the relay terminal to the remote terminal fails;

[0419] Specifically, if the remote terminal cannot interpret part of the information in the RRC reconfiguration message sent by the relay terminal, it can be determined that the direct communication interface reconfiguration 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, such as the RRCReconfigurationFailureSidelink message, and indicate that the failure reason is the direct communication interface reconfiguration failure. Then the relay terminal can determine that the direct communication interface reconfiguration from the relay terminal to the remote terminal fails.

[0420] Step 103: The relay terminal performs processing after the direct communication interface reconfiguration from the relay terminal to the remote terminal fails;

[0421] For the direct communication interface RRC reconfiguration failure from the relay terminal to the remote terminal, the relay terminal behavior can be one or a combination of the following ways:

[0422] Way one: Step 104a is performed.

[0423] Way two: If the direct communication interface configuration from the relay terminal to the remote terminal already exists before the direct communication interface reconfiguration, the configuration before the reconfiguration is continued to be used, and step 104b is performed.

[0424] Step 104a: The relay terminal sends second indication information to the network device;

[0425] Optionally, the relay terminal sends the second indication information to the network device through the Uu interface, and the second indication information carries the related parameters of the direct communication interface RRC reconfiguration failure from the relay terminal to the remote terminal,

[0426] The related parameters of the direct communication interface reconfiguration failure from the relay terminal to the remote terminal include at least one of the following:

[0427] The reason for the direct communication link configuration failure;

[0428] The direct communication link configuration failure;

[0429] The relay link identifier of the reconfiguration failure;

[0430] The direct communication link identifier of the reconfiguration failure.

[0431] Step 104b: The relay terminal sends the first indication information to the remote terminal;

[0432] Optionally, the remote terminal may also trigger 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 104b.

[0433] It should be noted that if the remote terminal performs the above operation after step 101, then step 104b can be omitted.

[0434] If a remote terminal performs relay reselection, after selecting a new relay terminal, it can initiate an RRC establishment or RRC reconstruction process to the network device through the new relay terminal. If the remote terminal is triggered to perform target object selection and / or reselection, the remote terminal can initiate an RRC reconstruction or RRC establishment process through the selected target relay terminal or target cell.

[0435] If the remote terminal simultaneously discovers multiple target relay terminals and / or target cells that meet the conditions, the remote terminal may also perform one of the following operations:

[0436] Prioritize initiating RRC reconstruction or RRC establishment processes in the target cell;

[0437] Preferentially, the RRC reconstruction or RRC establishment process is initiated through the target relay terminal to the serving cell of the target relay terminal;

[0438] Depending on the terminal implementation, the target cell is selected, or an RRC reconstruction or RRC establishment process is initiated from the target relay terminal to the serving cell of the target relay terminal.

[0439] The above embodiments describe the method for handling reconfiguration failure according to the present invention. The following embodiments will further describe the corresponding terminals in conjunction with the accompanying drawings.

[0440] Specifically, such as Figure 11 As shown, a terminal 1100 according to an embodiment of the present invention, the terminal being a remote terminal, includes:

[0441] The receiving unit 1110 is configured to 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 reconfiguration has failed;

[0442] The processing unit 1120 is configured to select and / or reselect a target object according to the first indication information; wherein the target object is a cell and / or a relay terminal.

[0443] Optionally, the reconfiguration failure comprises at least one of the following:

[0444] a Uu interface reconfiguration failure of the relay terminal;

[0445] a direct communication interface reconfiguration failure of the relay terminal to the remote terminal.

[0446] Optionally, the processing unit 1120 is further configured to:

[0447] determine a target object according to the first indication information;

[0448] if the target object is a relay terminal, initiate a radio resource control (RRC) setup and / or RRC reestablishment with a serving cell of the relay terminal through the relay terminal;

[0449] if the target object is a cell, initiate RRC setup and / or RRC reestablishment with the cell.

[0450] Optionally, the processing unit 1120 is further configured to:

[0451] if there are multiple target objects satisfying the condition, select a unique target object from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0452] prefer a cell;

[0453] prefer a relay terminal;

[0454] depend on terminal implementation.

[0455] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0456] It should be noted that the division of units in the embodiments of the present application is illustrative, and is merely a logical function division. In actual implementation, another division manner can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0457] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such an understanding, the technical solutions of the present application essentially or say the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0458] It should be noted that the terminal provided by the embodiment of the present application can realize all the method steps realized by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0459] It can be continued to refer to Figure 6 The embodiment provides a reconfiguration failure processing device, including a memory 62, a transceiver 63, and a processor 61; the memory 62 is used for storing a computer program; the transceiver 63 is used for transceiving data under the control of the processor 61; for example, the transceiver 63 is used for receiving and sending data under the control of the processor 61; the processor 61 is used for reading the computer program in the memory 62 and performing the following operations:

[0460] Receiving first indication information sent by a relay terminal; wherein the first indication information is sent by the relay terminal in the case of determining reconfiguration failure;

[0461] According to the first indication information, selection and / or reselection of a target object are performed; wherein the target object is a cell and / or a relay terminal.

[0462] Optionally, the reconfiguration failure includes at least one of the following:

[0463] The Uu interface of the relay terminal fails to reconfigure;

[0464] The direct communication interface of the relay terminal to the remote terminal fails to reconfigure.

[0465] Optionally, the processor 61 is used for reading the computer program in the memory and performing the following operations:

[0466] According to the first indication information, a target object is determined;

[0467] If the target object is a relay terminal, a radio resource control (RRC) setup and / or RRC reestablishment is initiated to a serving cell of the relay terminal through the relay terminal.

[0468] If the target object is a cell, an RRC setup and / or RRC reestablishment is initiated to the cell.

[0469] Optionally, the processor 61 is configured to read the computer program in the memory and perform the following operations:

[0470] If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0471] The cell is preferentially selected;

[0472] The relay terminal is preferentially selected;

[0473] Depending on terminal implementation.

[0474] Optionally, the first indication information is carried through PC5-S signaling or PC5-RRC signaling.

[0475] In the above method, the first indication information is carried through PC5-S signaling or PC5-RRC signaling. Figure 6 The bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the processor 61 and the memory 62 represented by the various circuits linked together by the bus architecture. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers, and power management circuits, which are well known in the art, and therefore, are not further described herein. The bus interface provides an interface. The transceiver 63 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and the like. The user interface 64 can also be an interface capable of connecting to the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like, for different user devices.

[0476] The processor 61 is responsible for managing the bus architecture and general processing, and the memory 62 can store data used by the processor 61 in performing operations.

[0477] Optionally, the processor 61 can be a CPU (Central Processor Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0478] The processor is configured to execute any of the methods provided by the embodiments of the present application by invoking the computer program stored in the memory.

[0479] It should be noted that the above device provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments and achieve the same technical effects, and thus the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[0480] The embodiments of the present application also provide a processor-readable storage medium, which stores a computer program, and the computer program is used to make the processor execute the above reconfiguration failure processing method.

[0481] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid-state disk (SSD)), etc.

[0482] As shown in Figure 12 The embodiments of the present application also provide a reconfiguration failure processing method, which is applied to a remote terminal and includes the following steps.

[0483] In step 121, if the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to a network device, and / or the remote terminal selects and / or reselects a target object.

[0484] The third indication information is used to indicate related parameters of the reconfiguration failure, and the target object includes a cell and / or a relay terminal.

[0485] Optionally, the reconfiguration failure includes at least one of the following:

[0486] an end-to-end radio resource control (RRC) reconfiguration failure between the remote terminal and the network device;

[0487] a direct communication interface reconfiguration failure from the remote terminal to the relay terminal.

[0488] Optionally, the method further comprises: the remote terminal continuing to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received; for example, when the remote terminal determines that an end-to-end radio resource control (RRC) reconfiguration failure between the remote terminal and the network device occurs, 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.

[0489] Optionally, the third indication information is carried through end-to-end RRC signaling between the remote terminal and the network device.

[0490] In this embodiment, when the remote terminal determines that a reconfiguration failure occurs, the remote terminal performs selection and / or reselection of a target object, so that when the reconfiguration failure occurs, the remote terminal is triggered to perform selection and / or reselection of a target object, to ensure that the system can normally operate after the reconfiguration failure in a relay scenario; and / or the remote terminal sends third indication information to the network device, the third indication information being used to indicate related parameters of the reconfiguration failure, so that the network device can obtain the related parameters of the reconfiguration failure, to perform related processing, to ensure that the system can normally operate after the reconfiguration failure in a relay scenario.

[0491] Optionally, the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device comprise at least one of the following:

[0492] an end-to-end reconfiguration failure;

[0493] a reason for the end-to-end reconfiguration failure;

[0494] a direct communication link configuration failure;

[0495] a relay link identifier of the reconfiguration failure;

[0496] a direct communication link identifier of the reconfiguration failure.

[0497] The direct communication link identifier can be a combined identifier of a direct communication source address and a direct communication target address; or the direct communication link identifier can be a direct communication target address.

[0498] Optionally, 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:

[0499] a reason for the direct communication link configuration failure;

[0500] The direct communication link configuration fails;

[0501] The relay link identification of the reconfiguration failure;

[0502] The direct communication link identification of the reconfiguration failure.

[0503] The direct communication link identification can be a combination of a direct communication source address and a direct communication target address; or the direct communication link identification can be a direct communication target address.

[0504] 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 selects and / or reselects a target object, including any of the following:

[0505] If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the remote terminal selects and / or reselects a target object;

[0506] 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 the failure of the end-to-end Uu interface configuration between the remote terminal and the network device, the remote terminal selects and / or reselects a target object;

[0507] 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 the failure of the remote terminal and the relay terminal direct communication interface parameter configuration, the remote terminal sends third indication information to the network device, and / or the remote terminal selects and / or reselects a target object.

[0508] 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 the end-to-end bearer and the direct communication interface logical channel between the remote terminal and the network device, etc.

[0509] Specifically, if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the behavior of the remote terminal can adopt one of the following ways:

[0510] Method one: if the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the remote terminal triggers the selection and / or reselection of a target object, and the target object includes a cell and / or a relay terminal.

[0511] For example, the remote terminal performs any of the following:

[0512] Cell selection and / or relay terminal selection;

[0513] cell selection and / or relay terminal reselection;

[0514] cell reselection and / or relay terminal selection;

[0515] cell reselection and / or relay terminal reselection.

[0516] Solution II: the remote terminal adopts different processing according to the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device, and the specific processing is as follows:

[0517] 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 the failure of the end-to-end Uu interface configuration between the remote terminal and the network device, the remote terminal adopts the same processing as the above solution I, that is, the remote terminal performs selection and / or reselection of the target object.

[0518] 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 the failure of the direct communication interface parameter configuration between 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.

[0519] Optionally, the third indication information can be carried through the end-to-end RRC signaling between the remote terminal and the network device.

[0520] Optionally, the remote terminal can continue to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received (such as continuing to use the configuration used before the RRC reconfiguration message is received), and send third indication information to the network device, the third indication information carrying the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device;

[0521] The related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following:

[0522] end-to-end reconfiguration failure;

[0523] reason for the end-to-end reconfiguration failure;

[0524] failure of the direct communication link configuration;

[0525] reconfiguration failure relay link identifier;

[0526] reconfiguration failure direct communication link identifier.

[0527] Optionally, if the remote terminal determines that the reconfiguration fails, the remote terminal sends third indication information to the network device, which includes:

[0528] If the remote terminal determines that the direct communication interface reconfiguration from the remote terminal to the relay terminal fails, the remote terminal continues to use the direct communication interface configuration used before the direct communication interface reconfiguration, and the remote terminal sends third indication information to the network device through the relay terminal.

[0529] Optionally, the third indication information can be carried through end-to-end RRC signaling between the remote terminal and the network device.

[0530] Specifically, if the relay terminal determines that the direct communication interface reconfiguration from the remote terminal to the relay terminal fails, the behavior of the relay terminal can adopt at least one of the following ways:

[0531] Way one: If the remote terminal determines that the direct communication interface reconfiguration 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 already exists before the direct communication interface reconfiguration, the remote terminal can continue to use the direct communication interface configuration used before the direct communication interface reconfiguration (such as continuing to use the configuration used before receiving the direct communication interface RRC reconfiguration message), and send end-to-end third indication information to the network device through the relay terminal, the third indication information carries the related parameters of the failure of the direct communication interface reconfiguration from the remote terminal to the relay terminal.

[0532] The related parameters of the failure of the direct communication interface reconfiguration from the remote terminal to the relay terminal include at least one of the following:

[0533] The reason for the failure of the direct communication link configuration;

[0534] The failure of the direct communication link configuration;

[0535] The reconfiguration failure relay link identifier;

[0536] The reconfiguration failure direct communication link identifier.

[0537] Way two: If the remote terminal determines that the direct communication interface reconfiguration from the remote terminal to the relay terminal fails, the remote terminal triggers the selection and / or reselection of target objects, the target objects including cells and / or relay terminals.

[0538] Optionally, the selection and / or reselection of target objects by the remote terminal includes:

[0539] The remote terminal determines the target objects;

[0540] After the remote terminal determines the target objects, at least one of the following is included:

[0541] If the target object is a relay terminal, the remote terminal initiates a radio resource control (RRC) setup and / or RRC reestablishment with a serving cell of the relay terminal via the relay terminal;

[0542] If the target object is a cell, the remote terminal initiates the RRC setup and / or RRC reestablishment with the cell.

[0543] Specifically, once the remote terminal is triggered to select and / or reselect a target object, the remote terminal can initiate the RRC setup and / or RRC reestablishment with the determined target object. For example, the remote terminal can be triggered to perform at least one of the following: cell selection and / or relay terminal selection; cell selection and / or relay terminal reselection; cell reselection and / or relay terminal selection; and cell reselection and / or relay terminal reselection.

[0544] Optionally, the remote terminal determines the target object, including:

[0545] If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0546] The cell is selected preferentially;

[0547] The relay terminal is selected preferentially;

[0548] Depending on terminal implementation.

[0549] The condition can be AS and NAS layer criteria, and the AS layer criteria can be whether the channel quality between the remote terminal and the current target object is higher than a threshold.

[0550] For example, during the RRC setup and / or RRC reestablishment process, the remote terminal performs selection and / or reselection of the target object. If there are multiple relay terminals and / or cells satisfying the requirement at the same time, the remote terminal can preferentially select a cell for RRC setup and / or RRC reestablishment; or preferentially select a relay terminal for RRC setup and / or RRC reestablishment; or the specific selection of which target relay terminal and / or target cell for RRC reestablishment depends on terminal implementation.

[0551] Specifically, the remote terminal can preferentially initiate the RRC setup and / or RRC reestablishment with the cell; or the remote terminal can preferentially initiate the RRC setup and / or RRC reestablishment with the serving cell of the relay terminal via the relay terminal; or the remote terminal initiates the RRC setup and / or RRC reestablishment with the cell or the serving cell of the relay terminal via the relay terminal according to terminal implementation.

[0552] The method for processing the relay terminal side reconfiguration failure of the application will be described below in combination with specific embodiments.

[0553] Embodiment four: end-to-end RRC reconfiguration failure between the remote terminal and the network device; as shown in the figure, the method comprises: Figure 13

[0554] Step 131: the network device sends an end-to-end RRC reconfiguration message to the remote terminal through the relay terminal;

[0555] Taking the NR system as an example, the RRC reconfiguration process can use the RRCReconfiguration message. The end-to-end RRC reconfiguration signaling specifically refers to the end-to-end RRC reconfiguration signaling between the network device and the remote terminal, that is, the relay terminal only forwards and does not analyze the RRC signaling.

[0556] Step 132: the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails;

[0557] 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 can be determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails.

[0558] Step 133: the remote terminal performs processing after the end-to-end RRC reconfiguration failure between the remote terminal and the network device;

[0559] If the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the remote terminal triggers the selection and / or reselection of the target object.

[0560] If the remote terminal performs relay reselection, it can initiate an RRC establishment or RRC reestablishment process through the new relay terminal after selecting a new relay terminal. If the remote terminal triggers 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.

[0561] If the remote terminal simultaneously finds multiple target relay terminals and / or target cells that meet the conditions, the remote terminal can also perform one of the following operations:

[0562] Preferentially selecting a target cell to initiate an RRC reestablishment or RRC establishment process;

[0563] Preferentially selecting a target relay terminal to initiate an RRC reestablishment or RRC establishment process through the service cell of the target relay terminal;

[0564] ​Depending on the terminal implementation, the target cell is determined, or an RRC reestablishment or RRC setup procedure is initiated by the target relay terminal to the serving cell of the target relay terminal.

[0565] Embodiment five: end-to-end RRC reconfiguration failure between the remote terminal and the network device; as shown in Figure 14 The method comprises the following steps:

[0566] Step 141: the network device sends an end-to-end RRC reconfiguration message to the remote terminal through the relay terminal;

[0567] Taking the NR system as an example, the RRC reconfiguration procedure can use the RRCReconfiguration message.

[0568] Step 142: the remote terminal determines that the end-to-end RRC reconfiguration between the remote terminal and the network device fails;

[0569] 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 can be judged that the end-to-end RRC reconfiguration between the remote terminal and the network device fails.

[0570] Step 143: the remote terminal performs processing after the end-to-end RRC reconfiguration failure between the remote terminal and the network device;

[0571] For example: the remote terminal adopts different processing according to the relevant parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device, as follows:

[0572] If the remote terminal judges 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, step 143a is continued; otherwise, step 143b is continued.

[0573] Specifically, the end-to-end Uu interface configuration between the remote terminal and the network device can include at least one of the following:

[0574] End-to-end bearer configuration, measurement configuration, etc. between the remote terminal and the network device;

[0575] Mapping relationship of end-to-end bearer and direct communication interface logical channel between the remote terminal and the network device, etc.

[0576] Step 143a: the remote terminal performs processing after the end-to-end RRC reconfiguration failure between the remote terminal and the network device;

[0577] If the remote terminal judges that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, the remote terminal triggers to perform selection and / or reselection of a target object.

[0578] Step 143b: The remote terminal sends third indication information of end-to-end to the network device.

[0579] For example, if the remote terminal judges 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 the failure of the remote terminal and the relay terminal to directly communicate interface parameter configuration, the remote terminal sends third indication information to the network device.

[0580] Specifically, the remote terminal can continue to use the end-to-end configuration used before the end-to-end reconfiguration signaling is received (such as continuing to use the configuration used before the RRC reconfiguration message is received), and send third indication information to the network device, which carries the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device.

[0581] The related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following:

[0582] End-to-end reconfiguration failure;

[0583] Reason for end-to-end reconfiguration failure;

[0584] Direct communication link configuration failure;

[0585] Relay link identification of reconfiguration failure;

[0586] Direct communication link identification of reconfiguration failure.

[0587] Embodiment six: The direct communication interface reconfiguration between the remote terminal and the relay terminal fails; for example Figure 15 As shown, the method comprises:

[0588] Step 151: The remote terminal sends a direct communication interface RRC reconfiguration message to the relay terminal.

[0589] Taking the NR system as an example, the RRC reconfiguration process can use the RRCReconfigurationSidelink message.

[0590] Step 152: The remote terminal determines that the direct communication interface reconfiguration between the remote terminal and the relay terminal fails.

[0591] Specifically, if the relay terminal cannot interpret part of the information in the RRC reconfiguration message sent by the remote terminal, it can be determined that the direct communication interface reconfiguration from the remote terminal to the relay terminal has failed. At this time, the relay terminal needs to send a reconfiguration failure message to the remote terminal, which can use the RRCReconfigurationFailureSidelink message, and indicate that the failure reason is the direct communication interface reconfiguration failure. Then the remote terminal determines that the direct communication interface reconfiguration from the remote terminal to the relay terminal has failed.

[0592] Step 153: The remote terminal performs processing after the direct communication interface reconfiguration from the remote terminal to the relay terminal fails; the specific processing mode can be one of the following modes:

[0593] Mode one: If the direct communication interface RRC configuration from the remote terminal to the relay terminal already exists before the direct communication interface RRC reconfiguration from the remote terminal to the relay terminal, the remote terminal can continue to use the direct communication interface configuration used before the direct communication interface reconfiguration (such as continue to use) the configuration used before receiving the direct communication interface RRC reconfiguration message, and continue to perform step 154.

[0594] Mode two: The remote terminal determines that the direct communication interface RRC reconfiguration from the remote terminal to the relay terminal has failed, triggering the remote terminal to perform target object selection and / or reselection.

[0595] For mode two, if the remote terminal triggers the remote terminal to perform target object selection and / or reselection, the remote terminal can initiate an RRC reestablishment or RRC establishment process through a selected target relay terminal or target cell.

[0596] If the remote terminal finds multiple target relay terminals and / or target cells that meet the conditions at the same time, the remote terminal can also perform one of the following operations:

[0597] Preferentially selecting a target cell to initiate an RRC reestablishment or RRC establishment process;

[0598] Preferentially selecting a target relay terminal to initiate an RRC reestablishment or RRC establishment process to the serving cell of the target relay terminal;

[0599] Depending on the terminal implementation, it is determined to select a target cell or to initiate an RRC reestablishment or RRC establishment process to the serving cell of the target relay terminal through a target relay terminal.

[0600] Step 154: The remote terminal sends third indication information to the network device through the relay terminal;

[0601] Optionally, the remote terminal sends end-to-end third indication information to the network device, the third indication information carrying a related parameter of a failure of the remote terminal to the relay terminal to directly communicate interface reconfiguration;

[0602] The related parameter of the failure of the remote terminal to the relay terminal to directly communicate interface reconfiguration includes at least one of the following:

[0603] A reason for a failure of the directly communicating link configuration;

[0604] The failure of the directly communicating link configuration;

[0605] A relay link identifier of the failure of the reconfiguration;

[0606] A directly communicating link identifier of the failure of the reconfiguration.

[0607] The above embodiments respectively introduce a reconfiguration failure processing method of the present application, and the following embodiment further describes a corresponding terminal in combination with the drawings.

[0608] Specifically, as shown in the figure, Figure 16 a terminal 1600 of an embodiment of the present application, the terminal being a remote terminal, includes:

[0609] A first processing unit 1610 is configured to, if it is determined that the reconfiguration fails, send third indication information to a network device, and / or perform selection and / or reselection of a target object.

[0610] The third indication information is used to indicate a related parameter of the reconfiguration failure; and the target object includes a cell and / or a relay terminal.

[0611] Optionally, the reconfiguration failure includes at least one of the following:

[0612] A failure of end-to-end radio resource control (RRC) reconfiguration between the remote terminal and the network device;

[0613] A failure of the remote terminal to the relay terminal to directly communicate interface reconfiguration.

[0614] Optionally, the related parameter of the end-to-end RRC reconfiguration failure between the remote terminal and the network device includes at least one of the following:

[0615] The end-to-end reconfiguration failure;

[0616] A reason for the end-to-end reconfiguration failure;

[0617] The failure of the directly communicating link configuration;

[0618] The relay link identifier of the failure of the reconfiguration;

[0619] The directly communicating link identifier of the failure of the reconfiguration.

[0620] Optionally, the related parameters of the failure of the direct communication interface reconfiguration from the remote terminal to the relay terminal comprise at least one of:

[0621] a reason of the failure of the direct communication link configuration;

[0622] the failure of the direct communication link configuration;

[0623] a reconfiguration-failed relay link identifier;

[0624] a reconfiguration-failed direct communication link identifier.

[0625] Optionally, the direct communication link identifier is a combined identifier of a direct communication source address and a direct communication target address; or the direct communication link identifier is the direct communication target address.

[0626] Optionally, the first processing unit 1610 is further configured to perform any one of:

[0627] if it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, performing selection and / or reselection of a target object;

[0628] if it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason of the reconfiguration failure includes a failure of the end-to-end Uu interface configuration between the remote terminal and the network device, performing selection and / or reselection of a target object;

[0629] if it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, and the reason of the reconfiguration failure only includes a failure of the direct communication interface parameter configuration from the remote terminal to the relay terminal, sending third indication information to the network device, and / or performing selection and / or reselection of a target object.

[0630] Optionally, the terminal 1600 further comprises:

[0631] a second processing unit, configured to continue using the end-to-end configuration used before the end-to-end reconfiguration signaling is received.

[0632] Optionally, the first processing unit 1610 is further configured to:

[0633] if it is determined that the direct communication interface reconfiguration from the remote terminal to the relay terminal fails, continue using the direct communication interface configuration used before the direct communication interface reconfiguration, and send third indication information to the network device through the relay terminal.

[0634] Optionally, the third indication information is carried through end-to-end RRC signaling between the remote terminal and the network device.

[0635] Optionally, the first processing unit 1610 is further configured to:

[0636] determine a target object;

[0637] if the target object is a relay terminal, initiate a radio resource control (RRC) setup and / or RRC reestablishment with a serving cell of the relay terminal through the relay terminal;

[0638] if the target object is a cell, initiate an RRC setup and / or RRC reestablishment with the cell.

[0639] Optionally, the first processing unit 1610 is further configured to:

[0640] if there are multiple target objects satisfying the condition, select a unique target object from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0641] preferentially select a cell;

[0642] preferentially select a relay terminal;

[0643] depend on terminal implementation.

[0644] It should be noted that the division of units in the embodiments of the present application is illustrative, and is merely a logical function division. In actual implementation, another division manner can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0645] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application, essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor execute all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program codes that can be stored in the medium.

[0646] It should be noted that the terminal provided by the embodiment of the present application can realize all the method steps realized by the method embodiment and achieve the same technical effects, and the same parts and beneficial effects of the method embodiment in the embodiment will not be described in detail.

[0647] Continuing to refer to Figure 6 The embodiment provides a reconfiguration failure processing apparatus, including a memory 62, a transceiver 63, and a processor 61; the memory 62 is used for storing a computer program; the transceiver 63 is used for transceiving data under the control of the processor 61; for example, the transceiver 63 is used for receiving and sending 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:

[0648] If it is determined that the reconfiguration fails, third indication information is sent to a network device, and / or selection and / or reselection of a target object are performed;

[0649] The third indication information is used for indicating related parameters of the reconfiguration failure; and the target object includes a cell and / or a relay terminal.

[0650] Optionally, the reconfiguration failure includes at least one of the following:

[0651] End-to-end radio resource control (RRC) reconfiguration failure between the remote terminal and the network device;

[0652] Direct communication interface reconfiguration failure of the remote terminal to the relay terminal.

[0653] Optionally, the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following:

[0654] End-to-end reconfiguration failure;

[0655] Reason for the end-to-end reconfiguration failure;

[0656] Direct communication link configuration failure;

[0657] Relay link identification of the reconfiguration failure;

[0658] Direct communication link identification of the reconfiguration failure.

[0659] Optionally, the related parameters of the direct communication interface reconfiguration failure of the remote terminal to the relay terminal include at least one of the following:

[0660] Reason for the direct communication link configuration failure;

[0661] Direct communication link configuration failure;

[0662] Relay link identification of the reconfiguration failure;

[0663] The direct communication link identifier of the reconfiguration failure.

[0664] Optionally, the direct communication link identifier is a combined identifier of a direct communication source address and a direct communication target address; or the direct communication link identifier is a direct communication target address.

[0665] Optionally, the processor 61 is configured to read the computer program in the memory and perform any one of the following operations:

[0666] If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, selection and / or reselection of a target object is performed.

[0667] 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 a failure of the end-to-end Uu interface configuration between the remote terminal and the network device, selection and / or reselection of a target object is performed.

[0668] 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 a failure of the direct communication interface parameter configuration between the remote terminal and the relay terminal, third indication information is sent to the network device, and / or selection and / or reselection of a target object is performed.

[0669] Optionally, the processor 61 is configured to read the computer program in the memory and perform the following operations:

[0670] The end-to-end configuration used before the end-to-end reconfiguration signaling is received is continued to be used.

[0671] Optionally, the processor 61 is configured to read the computer program in the memory and perform the following operations:

[0672] If it is determined that the direct communication interface reconfiguration between the remote terminal and the relay terminal fails, the direct communication interface configuration used before the direct communication interface reconfiguration is continued to be used, and third indication information is sent to the network device through the relay terminal.

[0673] Optionally, the third indication information is carried through end-to-end RRC signaling between the remote terminal and the network device.

[0674] Optionally, the processor 61 is configured to read the computer program in the memory and perform the following operations:

[0675] A target object is determined.

[0676] If the target object is a relay terminal, initiating a radio resource control (RRC) setup and / or RRC reestablishment with a serving cell of the relay terminal through the relay terminal;

[0677] If the target object is a cell, initiating a RRC setup and / or RRC reestablishment with the cell.

[0678] Optionally, the processor 61 is configured to read a computer program in the memory and perform the following operations:

[0679] If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the selection principle can be any one of the following:

[0680] Prior selection of a cell;

[0681] Prior selection of a relay terminal;

[0682] Depending on terminal implementation.

[0683] Wherein, in Figure 6 The bus architecture can include any number of interconnected buses and bridges, which are used to link various circuits together, including the various circuits that are represented by the processor 61 and the memory 62. The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and thus will not be described further herein. The bus interface provides an interface. The transceiver 63 can be a plurality of elements, i.e., including a transmitter and a receiver, which provide a unit for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, and the like. The user interface 64 can also be an interface that can be connected to the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like, for different user devices.

[0684] The processor 61 is responsible for managing the bus architecture and general processing, and the memory 62 can store data used by the processor 61 when performing operations.

[0685] Optionally, the processor 61 can be a CPU (central processor), an ASIC (application specific integrated circuit), an FPGA (field programmable gate array), or a CPLD (complex programmable logic device), and the processor can also adopt a multi-core architecture.

[0686] The processor executes any of the methods provided by the embodiments of the present application by invoking the computer program stored in the memory.

[0687] It should be noted that the above device provided by the embodiments of the present application can realize all the method steps achieved by the method embodiments and achieve the same technical effects, and thus the same parts and beneficial effects of the method embodiments are not described in detail herein.

[0688] The embodiments of the present application further provide a processor-readable storage medium, which stores a computer program, and the computer program is used for causing the processor to execute the above-mentioned reconfiguration failure processing method.

[0689] The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to a magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical storage (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor storage (such as a ROM, an EPROM, an EEPROM, a NAND FLASH, a solid-state disk (SSD)), etc.

[0690] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to a magnetic disk storage and an optical storage, etc.) containing computer-usable program code.

[0691] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer executable instructions. These computer executable instructions can be provided to a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the computer or other programmable data processing apparatus produce the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in a flow or multiple flows and / or blocks Figure 1 The device that realizes the functions specified in a flow or multiple flows and / or blocks.

[0692] These processor-executable instructions can 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 Figure 1 flow or multiple flows and / or blocks Figure 1 flow or multiple flows and / or blocks

[0693] These processor-executable instructions can 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 function specified in the flowchart Figure 1 flow or multiple flows and / or blocks Figure 1 flow or multiple flows and / or blocks

[0694] Furthermore, it is indicated that in the devices and methods of the present application, obviously, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application. Moreover, the steps for performing the above series of processes can naturally be executed in time sequence according to the order of description, but do not necessarily have to be executed in time sequence, and some steps can be executed in parallel or independently of each other. It can be understood by those skilled in the art that all or any steps or components of the method and device of the present application can be implemented in hardware, firmware, software or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, using the basic programming skills of those skilled in the art upon reading the description of the present application.

[0695] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for handling reconfiguration failures, applied to a relay terminal, characterized in that, Comprise: If the relay terminal determines that the Uu interface reconfiguration of the relay terminal 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; Wherein, the first indication information is used to trigger the remote terminal to select and / or reselect target objects, and the target objects include cells and / or relay terminals; the second indication information is used to indicate related parameters of the reconfiguration failure; Wherein, the related parameters of the Uu interface reconfiguration failure of the relay terminal include at least one of the following: The reason for the Uu interface reconfiguration failure; The remote terminal identifier of the reconfiguration failure; The relay link identifier of the reconfiguration failure; The direct communication link identifier of the reconfiguration failure.

2. The method of claim 1, wherein, The related parameters of the Uu interface reconfiguration failure of the relay terminal also include: The Uu interface reconfiguration failure.

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

4. The method of claim 1, wherein, If the relay terminal determines that the Uu interface reconfiguration of the relay terminal 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, including any 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 the remote terminal; If the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails, and the reason for the reconfiguration failure includes the failure of the Uu interface parameter configuration of the relay terminal, the relay terminal sends first indication information to the remote terminal; If the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails, and the reason for the reconfiguration failure only includes the failure of the relay related parameter configuration, the relay terminal sends first indication information to the remote terminal, and / or the relay terminal sends second indication information to the network device.

5. The method according to claim 1 or 4, characterized in that, Also include: The relay terminal continues to use the Uu interface configuration before the Uu interface reconfiguration.

6. The method of claim 1, wherein, The first indication information is carried through PC5-S signaling or PC5-RRC signaling.

7. A method for handling reconfiguration failures, applied to a remote terminal, characterized in that, Comprise: The remote terminal receives the first indication information sent by the relay terminal; wherein, the first indication information is sent by the relay terminal in the case that the relay terminal determines that the Uu interface reconfiguration of the relay terminal fails; The remote terminal selects and / or reselects target objects according to the first indication information; wherein, the target objects are cells and / or relay terminals.

8. The method of claim 7, wherein, The remote terminal selects and / or reselects target objects according to the first indication information, including: The remote terminal determines target objects according to the first indication information; After determining the target objects, at least one of the following is included: If the target objects are relay terminals, the remote terminal initiates a radio resource control (RRC) setup and / or RRC reestablishment to the serving cell of the relay terminal through the relay terminal; If the target objects are cells, the remote terminal initiates RRC setup and / or RRC reestablishment to the cells.

9. The method of claim 8, wherein, The determination of the target objects includes: If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the specific selection principle can be any one of the following: Prioritize selecting a cell; Prioritize selecting a relay terminal; Depending on terminal implementation.

10. The method of claim 7, wherein, The first indication information is carried through PC5-S signaling or PC5-RRC signaling.

11. A reconfiguration failure handling method applied to a remote terminal, characterized in that, Comprise: 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 sends third indication information to the network device, and / or the remote terminal selects and / or reselects a target object; Wherein, the third indication information is used to indicate the related parameters of the reconfiguration failure; the target object includes a cell and / or a relay terminal; Wherein, the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following: The reason for the end-to-end reconfiguration failure; The relay link identifier of the reconfiguration failure; The direct communication link identifier of the reconfiguration failure.

12. The method of claim 11, wherein, The related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device also include at least one of the following: End-to-end reconfiguration failure; Direct communication link configuration failure.

13. The method of claim 12, wherein, The direct communication link identifier is the combined identifier of the direct communication source and destination address; or the direct communication link identifier is the direct communication destination address.

14. The method of claim 11, wherein, 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 sends third indication information to the network device, and / or the remote terminal selects and / or reselects a 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 device 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 device fails, and the reason for the reconfiguration failure includes the failure of the Uu interface configuration between the remote terminal and the network device, 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 device fails, and the reason for the reconfiguration failure only includes the failure of the remote terminal and the relay terminal direct communication interface parameter configuration, the remote terminal sends third indication information to the network device, and / or the remote terminal selects and / or reselects a target object.

15. The method according to claim 11 or 14, characterized in that, Also include: The remote terminal continues to use the end-to-end configuration used before receiving the end-to-end reconfiguration signaling.

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

17. The method of claim 11, wherein, The remote terminal selects and / or reselects a target object, including: The remote terminal determines a target object; After the remote terminal determines the target object, it also includes at least one of the following: If the target object is a relay terminal, the remote terminal initiates a radio resource control (RRC) setup and / or RRC reestablishment to the serving cell of the relay terminal through the relay terminal; If the target object is a cell, the remote terminal initiates RRC setup and / or RRC reestablishment with the cell.

18. The method of claim 17, wherein, The remote terminal determines a target object, including: If there are multiple target objects satisfying the condition, a unique target object is selected from the multiple target objects satisfying the condition, and the specific selection principle can be any of the following: Prioritize selecting a cell; Prioritize selecting a relay terminal; Depending on terminal implementation.

19. A reconfiguration failure processing device, applied to a relay terminal, characterized in that, Including a memory, a transceiver, and a processor; The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: If it is determined that the Uu interface reconfiguration of the relay terminal fails, first indication information is sent to the remote terminal, and / or second indication information is sent to the network device; The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object includes a cell and / or a relay terminal; and the second indication information is used to indicate related parameters of the reconfiguration failure; The related parameters of the Uu interface reconfiguration failure of the relay terminal include at least one of the following: A cause of the Uu interface reconfiguration failure; An identifier of the remote terminal of the reconfiguration failure; An identifier of the relay link of the reconfiguration failure; An identifier of the direct communication link of the reconfiguration failure.

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

21. The apparatus of claim 20, wherein, The direct communication link identifier is a combined identifier of a direct communication source destination 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 the 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, first indication information is sent to the remote terminal; If it is determined that the Uu interface reconfiguration of the relay terminal fails, and the cause of the reconfiguration failure includes a failure of the Uu interface parameter configuration of the relay terminal, first indication information is sent to the remote terminal; If it is determined that the Uu interface reconfiguration of the relay terminal fails, and the cause of the reconfiguration failure only includes a failure of the parameter configuration related to the relay, first indication information is sent to the remote terminal, and / or second indication information is sent to the network device.

23. The apparatus of claim 19 or 22, wherein, The processor is configured to read the computer program in the memory and perform the following operations: Continue to use the Uu interface configuration before the Uu interface reconfiguration.

24. A terminal, characterized by The terminal is a relay terminal, including: A sending unit configured to, if it is determined that the Uu interface reconfiguration of the relay terminal fails, send first indication information to the remote terminal, and / or send second indication information to the network device; The first indication information is used to trigger the remote terminal to select and / or reselect a target object, and the target object includes a cell and / or a relay terminal; and the second indication information is used to indicate related parameters of the reconfiguration failure; The related parameters of the Uu interface reconfiguration failure of the relay terminal include at least one of the following: A cause of the Uu interface reconfiguration failure; An identifier of the remote terminal of the reconfiguration failure; An identifier of the relay link of the reconfiguration failure; An identifier of the direct communication link of the reconfiguration failure.

25. A reconfiguration failure handling apparatus applied to a remote terminal, characterized by, The terminal comprises a memory, a transceiver and a processor. The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: receiving first indication information sent by a relay terminal; wherein the first indication information is sent by the relay terminal in a case where the relay terminal determines that Uu interface reconfiguration of the relay terminal fails; 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.

26. The apparatus of claim 25, wherein, The processor is configured to read the computer program in the memory and perform the following operations: 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 serving cell of the relay terminal through the relay terminal; if the target object is a cell, initiating RRC establishment and / or RRC reestablishment to the cell.

27. The apparatus of claim 26, wherein, The processor is configured to read the computer program in the memory and perform the following operations: if there are multiple target objects satisfying the condition, selecting a unique target object from the multiple target objects satisfying the condition; the specific selection principle can be any one of the following: preferentially selecting a cell; preferentially selecting a relay terminal; depending on terminal implementation.

28. A terminal, characterized by The terminal is a remote terminal, comprising: a receiving unit configured to receive first indication information sent by a relay terminal; wherein the first indication information is sent by the relay terminal in a case where the relay terminal determines that Uu interface reconfiguration of the relay terminal fails; a processing unit configured to select and / or reselect a target object according to the first indication information; wherein the target object is a cell and / or a relay terminal.

29. A reconfiguration failure handling apparatus applied to a remote terminal, characterized by, The terminal comprises a memory, a transceiver and a processor. The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: if it is determined that end-to-end radio resource control (RRC) reconfiguration between the remote terminal and a network device fails, sending third indication information to the network device and / or selecting and / or reselecting a target object; wherein the third indication information is used to indicate related parameters of the reconfiguration failure; and the target object comprises a cell and / or a relay terminal; wherein the related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device comprise at least one of the following: a reason for the end-to-end reconfiguration failure; a relay link identifier of the reconfiguration failure; a direct communication link identifier of the reconfiguration failure.

30. The apparatus of claim 29, wherein, The related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device further comprise at least one of the following: an end-to-end reconfiguration failure; a direct communication link configuration failure.

31. The apparatus of claim 30, wherein, The direct communication link identifier is a combined identifier 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 the computer program in the memory and perform any one of the following operations: If it is determined that the end-to-end RRC reconfiguration between the remote terminal and the network device fails, target object selection and / or reselection is performed; 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 a failure of end-to-end Uu interface configuration between the remote terminal and the network device, target object selection and / or reselection is performed; 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 a failure of remote terminal and relay terminal direct communication interface parameter configuration, third indication information is sent to the network device, and / or target object selection and / or reselection is performed.

33. The apparatus of claim 29 or 32, wherein, The processor is configured to read a computer program in the memory and perform the following operations: The end-to-end configuration used before the end-to-end reconfiguration signaling is continued to be used.

34. The apparatus of claim 29, wherein, The processor is configured to read a computer program in the memory and perform the following operations: Determine a target object; If the target object is a relay terminal, initiate a radio resource control (RRC) setup and / or RRC reestablishment to a serving cell of the relay terminal through the relay terminal; If the target object is a cell, initiate RRC setup and / or RRC reestablishment to the cell.

35. The apparatus of claim 34, wherein, The processor is configured to read a computer program in the memory and perform the following operations: If there are multiple target objects that meet the conditions, a unique target object is selected from the multiple target objects that meet the conditions, and the selection principle can be any one of the following: Prioritize cells; Prioritize relay terminals; Depending on terminal implementation.

36. A terminal, characterized by The terminal is a remote terminal, comprising: A first processing unit configured to, if it is determined that end-to-end radio resource control (RRC) reconfiguration between the remote terminal and the network device fails, send third indication information to the network device, and / or perform target object selection and / or reselection. The third indication information is used to indicate related parameters of the reconfiguration failure; the target object includes a cell and / or a relay terminal. The related parameters of the end-to-end RRC reconfiguration failure between the remote terminal and the network device include at least one of the following: A reason for the end-to-end reconfiguration failure; A relay link identifier of the reconfiguration failure; A direct communication link identifier of the reconfiguration failure.

37. A processor-readable storage medium, comprising: The processor readable storage medium stores a computer program, which is used to make the processor perform the reconfiguration failure processing method in any one of claims 1 to 18.

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