Direct communication interface wireless bearer configuration method, terminal and network side equipment

Abstract

The present invention provides a direct communication interface wireless bearer configuration method, terminal and network-side device, which solve the problem of wireless bearer configuration conflict between two terminals in direct communication in the prior art. The method of the present invention comprises: receiving SLRB configuration information of a target wireless bearer SLRB of a direct communication interface sent by a second terminal; sending auxiliary information to a first network-side device serving the first terminal and / or judging whether to allow the establishment of the target SLRB according to the SLRB configuration information. The present invention can avoid SLRB configuration conflicts for the same SLRB between the subsequent direct communication sender and receiver by judging the configuration conflict of the SLRB configuration information received by the first network-side device or the first terminal itself and at the same time avoid SLRB configuration conflicts between different SLRBs of the same terminal.

Description

[0001] This invention application is a divisional application of the invention application with the application date of September 20, 2019, application number 201910892021.1, and invention name “Direct communication interface wireless bearer configuration method, terminal and network side equipment”. Technical Field

[0002] The present invention relates to the field of communication technology, and in particular to a direct communication interface wireless bearer configuration method, a terminal, and a network-side device. Background Art

[0003] 5G (fifth-generation mobile communication technology) introduces NR (New Radio) V2X (Vehicle to Everything) to support vertical applications in various industries. NR V2X supports three transmission modes on the direct communication interface: unicast, broadcast, and multicast.

[0004] For communication over a direct communication interface, the radio bearer between the two terminals in direct communication is allowed to use RLC (Radio Link Control) AM (Acknowledge Mode). The RLC AM mode supports bidirectional radio bearers. According to the traditional understanding of RLC AM, the radio bearer configurations in the two directions corresponding to the bidirectional radio bearer need to be exactly the same. However, for direct communication, if the coverage of the two terminals is different (for example, one is online and the other is offline, or both are online but within the coverage of different base stations) or the RRC (Radio Resource Control) states are different (for example, one is in a connected state and the other is in an idle state), the radio bearer configurations corresponding to the different radio bearer QoS (Quality of Service) parameters set by the bearer configuration management node or protocol layer of the two terminals may be different. Therefore, this may cause a conflict in the SLRB configurations of the SLRBs (Sidelink Radio Bearer, direct communication interface radio bearer) in the two directions of the bidirectional radio bearer or a conflict between the SLRB configurations of different SLRBs of the same terminal. Summary of the Invention

[0005] The object of the present invention is to provide a direct communication interface radio bearer configuration method, terminal and network side equipment, so as to solve the problem of radio bearer configuration conflict between two terminals in direct communication in the prior art.

[0006] To achieve the above objectives, an embodiment of the present invention provides a method for configuring a direct communication interface radio bearer, which is applied to a first terminal and includes:

[0007] Receiving SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal;

[0008] According to the SLRB configuration information, auxiliary information is sent to the first network-side device serving the first terminal and / or it is determined whether to allow the target SLRB to be established.

[0009] After determining whether to allow establishment of the target SLRB according to the SLRB configuration information, the method further includes:

[0010] If the result of the judgment is that the target SLRB is allowed to be established, sending auxiliary information to the first network side device or the protocol layer of the first terminal responsible for SLRB configuration information management;

[0011] In a case where the judgment result is that the establishment of the target SLRB is rejected, a response message is sent to the second terminal, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB.

[0012] The auxiliary information includes at least one of the following:

[0013] Bearer identification information of the target SLRB;

[0014] Logical channel identification information of the target SLRB;

[0015] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0016] The first terminal is in a network and in a radio resource control idle state or an inactive state, or the first terminal is in an offline state;

[0017] If the result of the judgment is that the target SLRB is allowed to be established, after sending the auxiliary information to the protocol layer responsible for SLRB configuration information management of the first terminal, the method further includes:

[0018] The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

[0019] The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information, including at least one of the following situations:

[0020] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0021] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0022] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0023] If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0024] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0025] The response message carries at least one of the following information:

[0026] A reason why the first terminal refuses to establish the target SLRB;

[0027] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0028] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0029] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0030] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0031] The determining, based on the SLRB configuration information, whether to allow establishment of the target SLRB includes:

[0032] Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0033] Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or,

[0034] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0035] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB;

[0036] If they are not the same, then the target SLRB is allowed to be established; or,

[0037] If they are the same and meet the target conditions, the target SLRB is allowed to be established;

[0038] Otherwise, the establishment of the target SLRB is rejected.

[0039] The target conditions include at least one of the following:

[0040] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0041] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0042] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0043] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0044] The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0045] The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

[0046] The SLRB configuration information includes at least one of the following:

[0047] Source identification;

[0048] Target identification;

[0049] Transmission type identifier;

[0050] SLRB logo;

[0051] Service data adaptation protocol layer configuration information;

[0052] Packet data convergence protocol layer configuration information;

[0053] Radio link control layer configuration information;

[0054] Media access control layer configuration information;

[0055] Physical layer configuration information.

[0056] Among them, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0057] The first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

[0058] To achieve the above objectives, an embodiment of the present invention further provides a method for configuring a direct communication interface radio bearer, which is applied to a first network-side device and includes:

[0059] receiving auxiliary information sent by the first terminal;

[0060] Performing SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or,

[0061] Based on the auxiliary information, it is determined whether the target SLRB is allowed to be established.

[0062] The auxiliary information includes at least one of the following:

[0063] Bearer identification information of the target SLRB;

[0064] Logical channel identification information of the target SLRB;

[0065] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0066] After determining whether to allow establishment of the target SLRB based on the auxiliary information, the method further includes:

[0067] Indication information is generated according to the judgment result, where the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or to indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

[0068] The configuring the SLRB of the first terminal according to the auxiliary information includes at least one of the following situations:

[0069] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0070] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0071] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0072] If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0073] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0074] The SLRB configuration information includes at least one of the following:

[0075] Source identification;

[0076] Target identification;

[0077] Transmission type identifier;

[0078] SLRB logo;

[0079] Service data adaptation protocol layer configuration information;

[0080] Packet data convergence protocol layer configuration information;

[0081] Radio link control layer configuration information;

[0082] Media access control layer configuration information;

[0083] Physical layer configuration information.

[0084] To achieve the above objectives, an embodiment of the present invention further provides a method for configuring a direct communication interface radio bearer, which is applied to a second terminal and includes:

[0085] The SLRB configuration information of the target radio bearer SLRB of the direct communication interface is sent to the first terminal.

[0086] The method further comprises:

[0087] A response message sent by the first terminal is received, where the response message is used to indicate that the first terminal refuses to establish the target SLRB.

[0088] The response message carries at least one of the following information:

[0089] A reason why the first terminal refuses to establish the target SLRB;

[0090] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0091] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0092] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0093] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0094] After receiving the response message sent by the first terminal, the method further includes:

[0095] Send a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal.

[0096] The request information carries at least one of the following information:

[0097] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0098] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0099] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0100] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0101] The second terminal is in a network and in a radio resource control idle state or an inactive state, or the second terminal is in an offline state;

[0102] After sending request information requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second terminal, the method further includes:

[0103] updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0104] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0105] Among them, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0106] The second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

[0107] To achieve the above objectives, an embodiment of the present invention further provides a direct communication interface radio bearer configuration method, which is applied to a second network side device, including:

[0108] Receive request information sent by the second terminal requesting to change SLRB configuration information of the target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through the direct communication interface;

[0109] updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0110] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0111] In order to achieve the above object, an embodiment of the present invention further provides a terminal, comprising: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor;

[0112] The transceiver is configured to receive SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal;

[0113] The processor is configured to send auxiliary information to a first network-side device serving the first terminal and / or determine whether to allow establishment of the target SLRB based on the SLRB configuration information.

[0114] The processor is further configured to:

[0115] If the result of the judgment is that the target SLRB is allowed to be established, sending auxiliary information to the first network side device or the protocol layer of the first terminal responsible for SLRB configuration information management;

[0116] In a case where the judgment result is that the establishment of the target SLRB is rejected, a response message is sent to the second terminal, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB.

[0117] The auxiliary information includes at least one of the following:

[0118] Bearer identification information of the target SLRB;

[0119] Logical channel identification information of the target SLRB;

[0120] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0121] The first terminal is online and in a radio resource control idle state or an inactive state, or the first terminal is offline; and the processor is further configured to:

[0122] The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

[0123] The processor is further configured to:

[0124] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0125] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0126] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0127] If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0128] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0129] The response message carries at least one of the following information:

[0130] A reason why the first terminal refuses to establish the target SLRB;

[0131] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0132] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0133] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0134] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0135] The processor is further configured to:

[0136] Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0137] Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or,

[0138] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0139] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB;

[0140] If they are not the same, then the target SLRB is allowed to be established; or,

[0141] If they are the same and meet the target conditions, the target SLRB is allowed to be established;

[0142] Otherwise, the establishment of the target SLRB is rejected.

[0143] The target conditions include at least one of the following:

[0144] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0145] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0146] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0147] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0148] The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0149] The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier as the target SLRB.

[0150] The SLRB configuration information includes at least one of the following:

[0151] Source identification;

[0152] Target identification;

[0153] Transmission type identifier;

[0154] SLRB logo;

[0155] Service data adaptation protocol layer configuration information;

[0156] Packet data convergence protocol layer configuration information;

[0157] Radio link control layer configuration information;

[0158] Media access control layer configuration information;

[0159] Physical layer configuration information.

[0160] Among them, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0161] The first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

[0162] In order to achieve the above object, an embodiment of the present invention further provides a terminal, including:

[0163] A first receiving module is configured to receive SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal;

[0164] A processing module is used to send auxiliary information to the first network side device serving the first terminal and / or determine whether to allow the target SLRB to be established based on the SLRB configuration information.

[0165] To achieve the above objectives, an embodiment of the present invention further provides a network-side device, including: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor is configured to read the program in the memory and execute the following process:

[0166] The transceiver is used to receive auxiliary information sent by the first terminal;

[0167] The processor is configured to perform SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or,

[0168] Based on the auxiliary information, it is determined whether the target SLRB is allowed to be established.

[0169] The auxiliary information includes at least one of the following:

[0170] Bearer identification information of the target SLRB;

[0171] Logical channel identification information of the target SLRB;

[0172] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0173] The processor is further configured to:

[0174] Indication information is generated according to the judgment result, where the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or to indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

[0175] The processor is further configured to:

[0176] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0177] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0178] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0179] If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0180] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0181] The SLRB configuration information includes at least one of the following:

[0182] Source identification;

[0183] Target identification;

[0184] Transmission type identifier;

[0185] SLRB logo;

[0186] Service data adaptation protocol layer configuration information;

[0187] Packet data convergence protocol layer configuration information;

[0188] Radio link control layer configuration information;

[0189] Media access control layer configuration information;

[0190] Physical layer configuration information.

[0191] To achieve the above-mentioned objective, an embodiment of the present invention further provides a network-side device, wherein the network-side device is a first network-side device, including:

[0192] A second receiving module is configured to receive auxiliary information sent by the first terminal, where the auxiliary information is all or part of the SLRB configuration information of the target SLRB sent by the second terminal and received by the first terminal through the direct communication interface;

[0193] A second configuration module is configured to configure the SLRB of the first terminal according to the auxiliary information; and / or

[0194] A judgment module is used to judge whether to allow the establishment of a target SLRB based on the auxiliary information.

[0195] In order to achieve the above object, an embodiment of the present invention further provides a terminal, comprising: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor;

[0196] The transceiver is used to send SLRB configuration information of a target radio bearer SLRB of a direct communication interface to the first terminal.

[0197] Wherein, the transceiver is further used for:

[0198] A response message sent by the first terminal is received, where the response message is used to indicate that the first terminal refuses to establish the target SLRB.

[0199] The response message carries at least one of the following information:

[0200] A reason why the first terminal refuses to establish the target SLRB;

[0201] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0202] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0203] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0204] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0205] Wherein, the transceiver is further used for:

[0206] Send a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal.

[0207] The request information carries at least one of the following information:

[0208] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0209] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0210] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0211] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0212] The second terminal is on the network and in a radio resource control idle state or an inactive state, or the second terminal is off the network; and the processor is configured to:

[0213] updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0214] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0215] Among them, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0216] The second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

[0217] In order to achieve the above object, an embodiment of the present invention further provides a terminal, including:

[0218] The first sending module is used to send SLRB configuration information of a target radio bearer SLRB of a direct communication interface to the first terminal.

[0219] To achieve the above objectives, an embodiment of the present invention further provides a network-side device, including: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor is configured to read the program in the memory and execute the following process:

[0220] The transceiver is configured to receive request information sent by the second terminal requesting to change the SLRB configuration information of the target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through the direct communication interface;

[0221] The processor is used to update the logical channel identifier contained in the SLRB configuration information of the target SLRB according to the request information, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal; or, according to the request information, update the logical channel identifier contained in the SLRB configuration information of the target SLRB, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0222] To achieve the above-mentioned object, an embodiment of the present invention further provides a network-side device, wherein the network-side device is a second network-side device, including:

[0223] A fourth receiving module is used to receive a request message sent by the second terminal requesting to change the SLRB configuration information of the target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through the direct communication interface;

[0224] The second configuration update module is used to update the logical channel identifier contained in the SLRB configuration information of the target SLRB according to the request information, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal; or, according to the request information, update the logical channel identifier contained in the SLRB configuration information of the target SLRB, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0225] In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for configuring a direct communication interface radio bearer described in the above embodiment is implemented.

[0226] The above technical solution of the present invention has at least the following beneficial effects:

[0227] In the above-mentioned technical solution of the embodiment of the present invention, the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface sent by the second terminal is received; according to the SLRB configuration information, auxiliary information is sent to the first network side device serving the first terminal and / or it is judged whether the establishment of the target SLRB is allowed. In this way, the first network side device or the first terminal itself makes a configuration conflict judgment on the SLRB configuration information received by the second terminal through the direct communication interface, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and avoiding SLRB configuration conflicts between different SLRBs of the same terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0228] Figure 1 This is a flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention;

[0229] Figure 2This is one of the specific flow diagrams of the direct communication interface radio bearer configuration method according to an embodiment of the present invention applied between a first terminal and a second terminal;

[0230] Figure 3 This is a second flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention;

[0231] Figure 4 This is a schematic diagram of a specific process of applying the direct communication interface radio bearer configuration method according to an embodiment of the present invention between a first terminal, a second terminal, and a first network-side device;

[0232] Figure 5 This is a third flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention;

[0233] Figure 6 This is a second schematic diagram of a specific flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention, applied between a first terminal and a second terminal;

[0234] Figure 7 This is a fourth flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention;

[0235] Figure 8 This is a schematic diagram of a specific process of applying a direct communication interface radio bearer configuration method according to an embodiment of the present invention between a first terminal, a second terminal, and a second network-side device;

[0236] Figure 9 is one of the structural block diagrams of a terminal according to an embodiment of the present invention;

[0237] Figure 10 This is one of the module schematic diagrams of the terminal according to an embodiment of the present invention;

[0238] Figure 11 This is one of the structural block diagrams of the network side device according to an embodiment of the present invention;

[0239] Figure 12 This is one of the module schematic diagrams of the network side device according to an embodiment of the present invention;

[0240] Figure 13 This is the second structural block diagram of the terminal according to an embodiment of the present invention;

[0241] Figure 14 This is a second schematic diagram of modules of a terminal according to an embodiment of the present invention;

[0242] Figure 15 This is the second structural block diagram of the network side device according to an embodiment of the present invention;

[0243] Figure 16This is the second module schematic diagram of the network side device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0244] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0245] like Figure 1 FIG. 1 is a flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention, which is applied to a first terminal and includes:

[0246] Step 101: Receive SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal;

[0247] In this step, optionally, the SLRB configuration information includes at least one of the following:

[0248] Source identification;

[0249] Target identification;

[0250] Transmission type identifier;

[0251] SLRB logo;

[0252] Service data adaptation protocol layer configuration information;

[0253] Packet data convergence protocol layer configuration information;

[0254] Radio link control layer configuration information;

[0255] Media access control layer configuration information;

[0256] Physical layer configuration information.

[0257] Here, preferably, the source identifier may be a source L2 identifier (Source L2 ID).

[0258] Preferably, the target identifier may be a destination L2 ID.

[0259] The transmission type identifier may include, but is not limited to, a unicast identifier, a multicast identifier, or a broadcast identifier.

[0260] The PDCP (Packet Data Convergence Protocol) layer configuration information may include whether header compression is supported.

[0261] RLC layer configuration information, that is, radio link control layer configuration information may include RLC mode, LCID, etc.

[0262] MAC (Media Access Control) layer configuration information may include: SLRB priority, LCP (Logical Channel Prioritization) related parameters, etc.

[0263] Step 102: According to the SLRB configuration information, auxiliary information is sent to the first network-side device serving the first terminal and / or it is determined whether to allow the target SLRB to be established.

[0264] In this step, auxiliary information is sent to the first network side device serving the first terminal based on the SLRB configuration information. The purpose is to enable the first network side device to perform SLRB configuration on the SLRB of the first terminal and / or determine whether to allow the establishment of the target SLRB based on the auxiliary information sent by the first terminal. Since the auxiliary information is based on the SLRB configuration information, when configuring the SLRB and / or determining whether to allow the establishment of the target SLRB, it can avoid SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and at the same time avoid SLRB configuration conflicts between different SLRBs of the same terminal.

[0265] Preferably, the auxiliary information includes at least one of the following:

[0266] Bearer identification information of the target SLRB;

[0267] Logical channel identification information of the target SLRB;

[0268] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0269] Optionally, in this step, judging whether to allow establishment of the target SLRB according to the SLRB configuration information may specifically include the following steps:

[0270] Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0271] Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or,

[0272] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0273] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB;

[0274] If they are not the same, then the target SLRB is allowed to be established; or,

[0275] If they are the same and meet the target conditions, the target SLRB is allowed to be established;

[0276] Otherwise, the establishment of the target SLRB is rejected.

[0277] Here, it should be noted that, according to the above-mentioned judgment steps, when the judgment result obtained is different, it means that the SLRB configuration information corresponding to the target SLRB and the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal do not have a configuration conflict, or it means that the SLRB configuration information corresponding to the target SLRB and the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB do not have a configuration conflict.

[0278] According to the above judgment steps, when the judgment result is the same, it means that the SLRB configuration information corresponding to the target SLRB has a configuration conflict with the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal, or it means that the SLRB configuration information corresponding to the target SLRB has a configuration conflict with the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; however, the existence of a configuration conflict does not necessarily mean that the target SLRB will be refused to be established, and it can be further judged whether the target conditions are met. If the target conditions are met, the target SLRB is allowed to be established; otherwise, the target SLRB is refused to be established.

[0279] Here, optionally, the target condition includes at least one of the following:

[0280] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0281] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0282] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0283] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0284] The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0285] The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

[0286] It should be noted that the QoS parameters of the SLRB may include but are not limited to: the priority of the SLRB, delay requirements, etc.

[0287] It should be noted that the priority of the second terminal that initiates the establishment of the target SLRB is higher than the priority of the terminal that initiates the establishment of other SLRBs using the same logical channel identifier as the target SLRB; here can be illustrated by example:

[0288] For example, if the second terminal that initiates establishment of the target SLRB is a group head, then the priority is higher than the priority of the group member terminal that initiates establishment of other SLRBs that use the same logical channel identifier as the target SLRB.

[0289] The direct communication interface wireless bearer configuration method of an embodiment of the present invention receives SLRB configuration information of a target wireless bearer SLRB of a direct communication interface sent by a second terminal; based on the SLRB configuration information, auxiliary information is sent to a first network side device serving the first terminal and / or it is judged whether to allow the establishment of the target SLRB. In this way, the first network side device or the first terminal itself makes a configuration conflict judgment on the SLRB configuration information received from the second terminal through the direct communication interface, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and at the same time avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0290] based on Figure 1 In the embodiment shown, as an optional implementation, after step 102, the method may further include:

[0291] If the result of the judgment is that the target SLRB is allowed to be established, sending auxiliary information to the first network side device or the protocol layer of the first terminal responsible for SLRB configuration information management;

[0292] Optionally, the first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

[0293] Optionally, the protocol layer responsible for SLRB configuration information management is a radio resource control (RRC) protocol layer. That is, in this embodiment, the protocol layer responsible for SLRB configuration information management of the first terminal is the RRC layer of the first terminal.

[0294] It should be noted that, if the first terminal is in the network and in the RRC connected state, when the judgment result is that the target SLRB is allowed to be established, the auxiliary information is sent to the first network side device;

[0295] If the first terminal is online and in RRC idle state or inactive state, or the first terminal is offline, when the judgment result is that the target SLRB is allowed to be established, auxiliary information is sent to the protocol layer responsible for SLRB configuration information management of the first terminal.

[0296] In a case where the judgment result is that the establishment of the target SLRB is rejected, a response message is sent to the second terminal, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB.

[0297] Preferably, the auxiliary information includes at least one of the following:

[0298] Bearer identification information of the target SLRB;

[0299] Logical channel identification information of the target SLRB;

[0300] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0301] Preferably, the response message carries at least one of the following information:

[0302] A reason why the first terminal refuses to establish the target SLRB;

[0303] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0304] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0305] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0306] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0307] Here, the logical channel identifier set includes at least two logical channel identifiers, that is, includes two or more logical channel identifiers.

[0308] As an optional implementation, the first terminal is online and in a radio resource control idle state or an inactive state, or the first terminal is offline; if the judgment result is that the target SLRB is allowed to be established, after sending auxiliary information to the protocol layer responsible for SLRB configuration information management of the first terminal, the method further includes:

[0309] The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

[0310] This step may specifically include at least one of the following steps:

[0311] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0312] Here, that is to say, if the protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the target SLRB corresponding to the auxiliary information, it is necessary to ensure that the SLRB configuration of the SLRB of the first terminal is exactly the same as the SLRB configuration information of the target SLRB contained in the auxiliary information. In this way, conflicts in SLRB configuration for the same SLRB can be avoided between the sender and receiver of direct communication.

[0313] For example, if the protocol layer responsible for SLRB configuration information management of the first terminal decides to map a quality of service flow QoS flow to the target SLRB, the configuration of the SLRB needs to be exactly the same as the SLRB configuration received by the first terminal from the second terminal.

[0314] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0315] Here, that is to say, if the protocol layer responsible for SLRB configuration information management of the first terminal configures other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, it is necessary to ensure that the LCID (Logical Channel Identifier) ​​already included in the auxiliary information will not be configured. In this way, SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0316] For example, if the protocol layer responsible for SLRB configuration information management of the first terminal decides to map a QoS flow to other SLRBs other than the target SLRB, then the other SLRBs belonging to the direct communication link composed of the first terminal and the second terminal cannot use the same LCID as the target SLRB.

[0317] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0318] For example, if the protocol layer responsible for SLRB configuration information management of the first terminal decides to map a QoS flow to other SLRBs other than the target SLRB, then other SLRBs that belong to the direct communication link composed of the first terminal and the second terminal and whose source identifier and target identifier are the same as the target SLRB cannot use the same LCID as the target SLRB.

[0319] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0320] Here, that is to say, if the protocol layer responsible for SLRB configuration information management of the first terminal has performed SLRB configuration for other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, and the logical channel identifier contained in the configured SLRB configuration information is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB needs to be changed so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB. In this way, configuration conflicts between different SLRBs of the same terminal can be avoided.

[0321] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0322] The following is combined with Example 1, such as Figure 2 As shown, the specific implementation process of the direct communication interface radio bearer configuration method of the present invention is specifically described.

[0323] In this example, UE (User Equipment) 1 and UE2 are two terminals communicating via a direct communication interface. UE1 is online and in RRC idle or RRC inactive state, or UE1 is offline. The specific steps are described as follows:

[0324] S1: Get SLRB configuration information of SLRB1;

[0325] Here, UE2 obtains the configuration information of SLRB1, where the SLRB1 (i.e., the target SLRB described in the above embodiment) is any bearer used between UE1 and UE2. For example, the SLRB1 may be one of the following SLRBs:

[0326] Bidirectional SLRB for RLC AM;

[0327] Bidirectional SLRB for RLC UM (Un-acknowledge Mode);

[0328] SLRB for unidirectional RLC UM;

[0329] SLRB in unidirectional RLC TM (Transparent Mode).

[0330] Specifically, UE2 can obtain the SLRB configuration information corresponding to SLRB 1 according to its current RRC state. The specific acquisition method is as follows:

[0331] 1) If UE2 is in the network and in the RRC connected state, UE2 requests the SLRB configuration information corresponding to the QoS flow from the network through RRC signaling;

[0332] 2) If UE2 is in the network and in RRC idle state or RRC inactive state, UE2 obtains the SLRB configuration information corresponding to the QoS flow through SIB;

[0333] 3) If UE2 is in an offline state, UE2 obtains the SLRB configuration information corresponding to the QoS flow through the pre-configuration information.

[0334] S2: Send SLRB configuration information of SLRB1 to UE1;

[0335] In this step, UE2 sends the SLRB configuration information of SLRB1 to UE1.

[0336] Optionally, UE2 sends the SLRB configuration information of SLRB1 to UE1 through a direct communication interface signaling bearer.

[0337] S3: Receive SLRB configuration information of SLRB1, and determine whether to allow establishment of the SLRB1 according to the SLRB configuration information;

[0338] The execution subject in this step is UE1, wherein UE1 determines whether to allow the establishment of the SLRB1 according to the SLRB configuration information as follows:

[0339] UE1 determines whether the LCID included in the received SLRB configuration information of SLRB1 conflicts with the LCID configuration included in the SLRB configuration information of other SLRBs that are being established or have been established between UE1 and UE2.

[0340] Here, specifically, UE1 determines whether the LCID included in the configuration information of SLRB1 is the same as the LCID configuration in the SLRB configuration information of other SLRBs that are being established or have been established between UE1 and UE2, or UE1 determines whether the LCID included in the configuration information of SLRB1 is the same as the LCID configuration in the SLRB configuration information of other SLRBs that are being established or have been established between UE1 and UE2 and have the same source identifier and target identifier as the target SLRB;

[0341] If they are the same, it means there is a conflict; otherwise, it means there is no conflict.

[0342] If there is a conflict, it is determined according to a specific principle which of the conflicting SLRBs needs to be rejected. Rejecting the SLRB here includes: rejecting the establishment of the SLRB or releasing the established SLRB.

[0343] Specific principles may include but are not limited to at least one of the following:

[0344] Based on the QoS parameters of the SLRB, such as priority and / or latency requirements;

[0345] Based on the priority of the UE that initiates the SLRB establishment, for example, if the UE that initiates the SLRB establishment is the group head, it will take priority;

[0346] According to the initiation time of SLRB, for example, the SLRB initiated earlier will take priority.

[0347] If step S3 determines that the establishment of the SLRB1 is allowed, then the process proceeds to S4.

[0348] S4: Send auxiliary information to the protocol layer responsible for SLRB configuration information management of UE1;

[0349] Preferably, the SLRB configuration information management protocol layer of UE1 is the RRC layer of UE1.

[0350] Here, the auxiliary information is all or part of the SLRB configuration information of the SLRB1 received by UE1.

[0351] The SLRB configuration information of SLRB1 includes at least one of the following:

[0352] Source L2 ID;

[0353] Destination L2 ID;

[0354] Transmission type identifier;

[0355] SLRB ID;

[0356] SDAP layer configuration information;

[0357] PDCP layer configuration information;

[0358] RLC layer configuration information;

[0359] MAC layer configuration information;

[0360] PHY (Physical Layer) configuration information.

[0361] It should be noted that before sending the auxiliary information to the protocol layer responsible for SLRB configuration information management of UE1, the auxiliary information needs to be determined, which may specifically include:

[0362] If UE1 and UE2 are unicast direct communication transceiver terminals with SLRB configuration for the same SLRB, the auxiliary information includes all SLRB configuration information of SLRB1;

[0363] If UE1 and UE2 are direct communication transceiver terminals with SLRB configurations for different SLRBs, the auxiliary information includes part of the SLRB configuration information of SLRB1. Preferably, the auxiliary information includes the source L2 identifier, the target L2 identifier and the LCID; or, the auxiliary information includes the source L2 identifier and the LCID.

[0364] S5: The protocol layer responsible for SLRB configuration information management of UE1 performs SLRB configuration on the SLRB of UE1 according to the auxiliary information;

[0365] Since UE1 is online and in RRC idle state or RRC inactive state, or UE1 is offline, the protocol layer responsible for SLRB configuration information management of UE1 is the RRC layer of UE1.

[0366] The protocol layer responsible for SLRB configuration information management performs a more reasonable SLRB configuration on the SLRB of UE1 according to the auxiliary information, specifically including:

[0367] If the protocol layer responsible for SLRB configuration information management performs SLRB configuration on the SLRB1 corresponding to the auxiliary information, the SLRB configuration is exactly the same as the SLRB configuration information of the SLRB1 provided in the auxiliary information.

[0368] For example, if the protocol layer responsible for SLRB configuration information management decides to map a QoS flow to SLRB 1, then the configuration of the SLRB must be exactly the same as the SLRB configuration of SLRB1 received by UE1 from UE2.

[0369] If the protocol layer responsible for SLRB configuration information management performs SLRB configuration on other SLRBs other than the SLRB1 corresponding to the auxiliary information and belonging to the direct communication link composed of UE1 and UE2, the LCID of the configured other SLRBs is different from the LCID in the SLRB configuration information of the SLRB1 provided by the configuration auxiliary information.

[0370] For example, if the protocol layer responsible for SLRB configuration information management decides to map a QoS flow to a SLRB other than SLRB 1, then the SLRB belonging to the same Source L2 ID and Destination L2ID as SLRB 1 cannot use the same LCID as SLRB 1.

[0371] If the protocol layer responsible for SLRB configuration information management configures other SLRBs other than the SLRB1 corresponding to the auxiliary information and belonging to the direct communication link composed of UE1 and UE2 and whose source identifier and target identifier are the same as the target SLRB, then the LCID of the configured other SLRBs is different from the LCID in the SLRB configuration information of the SLRB1 provided by the configuration auxiliary information.

[0372] If the LCID in the SLRB1 configuration information conflicts with the LCID allocated by the protocol layer responsible for SLRB configuration information management to other SLRBs between UE1 and UE2, or if the LCID in the SLRB1 configuration information conflicts with the LCID allocated by the protocol layer responsible for SLRB configuration information management to other SLRBs between UE1 and UE2 whose source identifier and target identifier are the same as the SLRB1, then the protocol layer responsible for SLRB configuration information management needs to update the LCIDs allocated to other SLRBs.

[0373] The direct communication interface wireless bearer configuration method of an embodiment of the present invention receives SLRB configuration information of a target wireless bearer SLRB of a direct communication interface sent by a second terminal; based on the SLRB configuration information, auxiliary information is sent to a first network side device serving the first terminal and / or it is judged whether to allow the establishment of the target SLRB. In this way, the first network side device or the first terminal itself makes a configuration conflict judgment on the SLRB configuration information received from the second terminal through the direct communication interface, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and at the same time avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0374] like Figure 3 FIG. 1 is a flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention, which is applied to a first network-side device and includes:

[0375] Step 301: receiving auxiliary information sent by a first terminal;

[0376] In this step, preferably, the first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

[0377] It should be noted that the auxiliary information includes: the auxiliary information sent by the received first terminal based on the SLRB configuration information of the target SLRB of the direct communication interface received by the second terminal, and / or the auxiliary information sent when the received first terminal determines whether to allow the establishment of the target SLRB and the result is that establishment is allowed.

[0378] Here, optionally, the SLRB configuration information includes at least one of the following:

[0379] Source identification;

[0380] Target identification;

[0381] Transmission type identifier;

[0382] SLRB logo;

[0383] Service data adaptation protocol layer configuration information;

[0384] Packet data convergence protocol layer configuration information;

[0385] Radio link control layer configuration information;

[0386] Media access control layer configuration information;

[0387] Physical layer configuration information.

[0388] Step 302: Perform SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or determine whether to allow establishment of a target SLRB according to the auxiliary information.

[0389] It should be explained that the steps in this embodiment correspond to the method for configuring a direct communication interface radio bearer in the embodiment on the first terminal side.

[0390] For example, at the first terminal side, step 102 in the method steps is executed to send an auxiliary message to the first network side device serving the first terminal according to the SLRB configuration information;

[0391] That is, the first terminal side does not perform the step of determining whether to allow the target SLRB to be established;

[0392] Then, the first network side device serving the first terminal, such as a base station, performs step 302 in the method steps of determining whether to allow the establishment of the target SLRB based on the auxiliary information, and can also perform the step of configuring the SLRB of the first terminal.

[0393] For example, at the first terminal side, step 102 of the method steps is to determine whether to allow the target SLRB to be established according to the SLRB configuration information;

[0394] Then, on the first network side device side serving the first terminal, step 302 in the method steps executes the step of configuring the SLRB of the first terminal according to the auxiliary information.

[0395] As an optional implementation, judging whether to allow establishment of the target SLRB according to the auxiliary information may specifically include the following steps:

[0396] Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0397] Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or,

[0398] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0399] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB;

[0400] If they are not the same, then the target SLRB is allowed to be established; or,

[0401] If they are the same and meet the target conditions, the target SLRB is allowed to be established;

[0402] Otherwise, the establishment of the target SLRB is rejected.

[0403] Here, it should be noted that, according to the above-mentioned judgment steps, when the judgment result obtained is different, it means that the SLRB configuration information corresponding to the target SLRB and the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal do not have a configuration conflict, or it means that the SLRB configuration information corresponding to the target SLRB and the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB do not have a configuration conflict.

[0404] According to the above judgment steps, when the judgment result is the same, it means that the SLRB configuration information corresponding to the target SLRB has a configuration conflict with the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal, or it means that the SLRB configuration information corresponding to the target SLRB has a configuration conflict with the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; however, the existence of a configuration conflict does not necessarily mean that the target SLRB will be refused to be established, and it can be further judged whether the target conditions are met. If the target conditions are met, the target SLRB is allowed to be established; otherwise, the target SLRB is refused to be established.

[0405] Here, optionally, the target condition includes at least one of the following:

[0406] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0407] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0408] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0409] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0410] The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0411] The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

[0412] It should be noted that the QoS parameters of the SLRB may include but are not limited to: the priority of the SLRB, delay requirements, etc.

[0413] It should be noted that the priority of the second terminal that initiates the establishment of the target SLRB is higher than the priority of the terminal that initiates the establishment of other SLRBs using the same logical channel identifier as the target SLRB; here can be illustrated by example:

[0414] For example, if the second terminal that initiates establishment of the target SLRB is a group head, then the priority is higher than the priority of the group member terminal that initiates establishment of other SLRBs that use the same logical channel identifier as the target SLRB.

[0415] The direct communication interface wireless bearer configuration method of an embodiment of the present invention receives auxiliary information sent by a first terminal; performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or determines whether to allow the establishment of a target SLRB according to the auxiliary information. In this way, SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver can be avoided, and SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0416] Preferably, the auxiliary information includes at least one of the following:

[0417] Bearer identification information of the target SLRB;

[0418] Logical channel identification information of the target SLRB;

[0419] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0420] based on Figure 3 In the embodiment shown, as an optional implementation, after determining whether to allow establishment of the target SLRB based on the auxiliary information in step 302, the method may further include:

[0421] Indication information is generated according to the judgment result, where the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or to indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

[0422] based on Figure 3 In the embodiment shown, as an optional implementation, in step 302, configuring the SLRB of the first terminal according to the auxiliary information may include at least one of the following steps:

[0423] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0424] Here, that is to say, if the first network side device performs SLRB configuration on the target SLRB corresponding to the auxiliary information, it is necessary to ensure that the SLRB configuration of the SLRB of the first terminal is exactly the same as the SLRB configuration information of the target SLRB contained in the auxiliary information. In this way, it is possible to avoid SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver.

[0425] For example, if the first network-side device decides to map a quality of service flow QoS flow to the target SLRB, the configuration of the SLRB needs to be exactly the same as the SLRB configuration received by the first terminal from the second terminal.

[0426] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifiers of the other SLRBs are configured as logical channel identifiers different from the logical channel identifier included in the SLRB configuration information of the target SLRB;

[0427] Here, that is to say, if the first network side device configures other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, it is necessary to ensure that the LCID already included in the auxiliary information will not be configured. In this way, SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0428] For example, if the first network-side device decides to map a QoS flow to an SLRB other than the target SLRB, the other SLRBs belonging to the direct communication link composed of the first terminal and the second terminal cannot use the same LCID as the target SLRB.

[0429] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0430] For example, if the first network side device decides to map a QoS flow to other SLRBs other than the target SLRB, then other SLRBs that belong to the direct communication link composed of the first terminal and the second terminal and whose source identifier and target identifier are the same as the target SLRB cannot use the same LCID as the target SLRB.

[0431] If the logical channel identifier of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0432] Here, that is to say, if the first network side device has configured other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, and the logical channel identifier contained in the configured SLRB configuration information is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then it is necessary to change the logical channel identifier of the other SLRB so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB. In this way, configuration conflicts between different SLRBs of the same terminal can be avoided.

[0433] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0434] The following is combined with Example 2, such as Figure 4 As shown, the specific implementation process of the direct communication interface radio bearer configuration method of the present invention is specifically described.

[0435] In this example, UE1 and UE2 are two terminals communicating via a direct communication interface. UE1 is online and in an RRC connected state. The first network-side device, i.e., the SLRB configuration information management node of UE1, may include, but is not limited to, a serving base station, a DU (Distributed Unit), or a CU (Central Unit). The specific steps are described as follows:

[0436] S11: Get SLRB configuration information of SLRB1;

[0437] Here, UE2 obtains the configuration information of SLRB1, where the SLRB1 (i.e., the target SLRB described in the above embodiment) is any bearer used between UE1 and UE2. For example, the SLRB1 may be one of the following SLRBs:

[0438] Bidirectional SLRB for RLC AM;

[0439] Bidirectional SLRB for RLC UM;

[0440] SLRB for unidirectional RLC UM;

[0441] SLRB of unidirectional RLC TM.

[0442] Specifically, the SLRB configuration information corresponding to SLRB 1 can be obtained according to its current RRC state. The specific acquisition method is shown in the above example 1 and will not be repeated here.

[0443] S12: Send SLRB configuration information of SLRB1 to UE1;

[0444] In this step, UE2 sends the SLRB configuration information of SLRB1 to UE1.

[0445] Optionally, UE2 sends the SLRB configuration information of SLRB1 to UE1 through a direct communication interface signaling bearer.

[0446] S13: Receive SLRB configuration information of SLRB1, and determine whether to allow establishment of SLRB1 according to the SLRB configuration information;

[0447] The execution subject in this step is UE1, wherein the manner in which UE1 determines whether to allow the establishment of the SLRB1 according to the SLRB configuration information is as described in the above example 1 and will not be repeated here.

[0448] If step S13 determines that the establishment of the SLRB1 is allowed, then step S14 is executed.

[0449] S14: Sending auxiliary information to the first network-side device;

[0450] The execution subject in this step is UE1.

[0451] Here, the auxiliary information includes at least one of the following:

[0452] The bearer identification information of the SLRB1;

[0453] Logical channel identification information of the SLRB1;

[0454] The first terminal uses part or all of the SLRB configuration information when sending data using the SLRB1.

[0455] The SLRB configuration information of SLRB1 includes at least one of the following:

[0456] Source L2 ID;

[0457] Destination L2 ID;

[0458] Transmission type identifier;

[0459] SLRB ID;

[0460] SDAP layer configuration information;

[0461] PDCP layer configuration information;

[0462] RLC layer configuration information;

[0463] MAC layer configuration information;

[0464] PHY layer configuration information.

[0465] It should be noted that before sending the auxiliary information to the first network side device, the auxiliary information needs to be determined. The specific determination steps are shown in the above example 1 and will not be repeated here.

[0466] Here, UE1 sends the determined auxiliary information to the first network side device, that is, the SLRB configuration information management node. The specific signaling used may be RRC signaling, MAC signaling or physical layer signaling.

[0467] S15: The first network-side device configures the SLRB of UE1 according to the auxiliary information;

[0468] The first network-side device configures the SLRB of UE1 according to the auxiliary information, specifically including:

[0469] If the first network-side device performs SLRB configuration on the SLRB1 corresponding to the auxiliary information, the SLRB configuration is exactly the same as the SLRB configuration information of the SLRB1 provided in the auxiliary information.

[0470] For example, if the first network-side device decides to map a QoS flow to SLRB 1, the configuration of the SLRB must be exactly the same as the SLRB configuration of SLRB1 received by UE1 from UE2.

[0471] If the first network side device configures SLRBs for other SLRBs other than the SLRB1 corresponding to the auxiliary information and belonging to the direct communication link composed of UE1 and UE2, the LCID of the configured other SLRBs is different from the LCID in the SLRB configuration information of the SLRB1 provided by the configuration auxiliary information.

[0472] For example, if the first network-side device decides to map a QoS flow to an SLRB other than SLRB 1, then other SLRBs belonging to the direct communication link formed by UE1 and UE2 cannot use the same LCID as SLRB 1.

[0473] If the first network side device configures other SLRBs other than the SLRB1 corresponding to the auxiliary information and belonging to the direct communication link composed of UE1 and UE2 and whose source identifier and target identifier are the same as the target SLRB, then the LCID of the configured other SLRBs is different from the LCID in the SLRB configuration information of the SLRB1 provided by the configuration auxiliary information.

[0474] For example, if the first network side device decides to map a QoS flow to other SLRBs other than the target SLRB, then other SLRBs belonging to the direct communication link composed of UE1 and UE2 and having the same source identifier and target identifier as SLRB1 cannot use the same LCID as SLRB1.

[0475] If the LCID in the SLRB1 configuration information conflicts with the LCID allocated by the first network side device to other SLRBs between UE1 and UE2, or if the LCID in the SLRB1 configuration information conflicts with the LCID allocated by the protocol layer responsible for SLRB configuration information management to other SLRBs between UE1 and UE2 whose source identifier and target identifier are the same as the SLRB1, then the protocol layer responsible for SLRB configuration information management needs to update the LCIDs allocated to other SLRBs.

[0476] The direct communication interface wireless bearer configuration method of an embodiment of the present invention receives auxiliary information sent by a first terminal; performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or determines whether to allow the establishment of a target SLRB according to the auxiliary information. In this way, SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver can be avoided, and SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0477] like Figure 5 FIG. 1 is a flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention, which is applied to a second terminal and includes:

[0478] Step 501: Send SLRB configuration information of a target radio bearer SLRB of a direct communication interface to a first terminal.

[0479] In this step, optionally, the SLRB configuration information includes at least one of the following:

[0480] Source identification;

[0481] Target identification;

[0482] Transmission type identifier;

[0483] SLRB logo;

[0484] Service data adaptation protocol layer configuration information;

[0485] Packet data convergence protocol layer configuration information;

[0486] Radio link control layer configuration information;

[0487] Media access control layer configuration information;

[0488] Physical layer configuration information.

[0489] The direct communication interface wireless bearer configuration method of an embodiment of the present invention provides a basis for the first terminal to determine whether to allow the establishment of the target SLRB by sending the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface to the first terminal, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0490] based on Figure 5 In the embodiment shown, as an optional implementation, the method may further include:

[0491] A response message sent by the first terminal is received, where the response message is used to indicate that the first terminal refuses to establish the target SLRB.

[0492] In this step, the second terminal receives a response message sent by the first terminal, indicating that the first terminal refuses to establish the target SLRB according to the SLRB configuration information of the target SLRB.

[0493] Here, optionally, the response message carries at least one of the following information:

[0494] A reason why the first terminal refuses to establish the target SLRB;

[0495] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0496] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0497] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0498] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0499] Here, the reason why the first terminal refuses to establish the target SLRB may be but is not limited to SLRB configuration conflict.

[0500] Based on this, as an optional implementation, after this step, the method further includes:

[0501] Send a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal.

[0502] Here, it should be noted that when the second terminal is online and in an RRC connected state, a request message is sent to the second network side device requesting to change the SLRB configuration information of the target SLRB.

[0503] When the second terminal is online and in RRC idle state or RRC inactive state, or when the second terminal is offline; a request message is sent to the protocol layer responsible for SLRB configuration information management of the second terminal requesting to change the SLRB configuration information of the target SLRB.

[0504] Optionally, the second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

[0505] Optionally, the protocol layer responsible for SLRB configuration information management is a radio resource control (RRC) protocol layer. That is, in this embodiment, the protocol layer responsible for SLRB configuration information management of the second terminal is the RRC layer of the second terminal.

[0506] Here, the RRC layer of the second terminal receives the SLRB configuration corresponding to different QoS parameters / different transmission modes configured by the network through SIB.

[0507] Optionally, the request information carries at least one of the following information:

[0508] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0509] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0510] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0511] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0512] As an optional implementation, the second terminal is online and in a radio resource control idle state or an inactive state, or the second terminal is offline; after sending a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second terminal, the method further includes:

[0513] updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0514] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0515] Here, since the first terminal refuses to establish the target SLRB, it indicates that the SLRB configuration information of the target SLRB sent by the second terminal conflicts with the SLRB configuration of other SLRBs being established or already established between the first terminal and the second terminal, or that the SLRB configuration information of the target SLRB sent by the second terminal conflicts with the SLRB configuration of other SLRBs being established or already established between the first terminal and the second terminal that use the same source identifier and target identifier as the target SLRB. By updating the logical channel identifier contained in the SLRB configuration information of the target SLRB so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal, or by making it different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal that use the same source identifier and target identifier as the target SLRB, SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver can be avoided, while avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0516] The following is combined with Example 3, such as Figure 6As shown, the specific implementation process of the direct communication interface radio bearer configuration method of the present invention is specifically described.

[0517] In this example, UE1 and UE2 are two terminals communicating via a direct communication interface. UE2 is connected to the network and in RRC idle or RRC inactive state, or UE2 is disconnected from the network. The specific steps are described as follows:

[0518] S111: Obtain SLRB configuration information of SLRB1;

[0519] Here, UE2 obtains the configuration information of SLRB1, where the SLRB1 (i.e., the target SLRB described in the above embodiment) is any bearer used between UE1 and UE2. For example, the SLRB1 may be one of the following SLRBs:

[0520] Bidirectional SLRB for RLC AM;

[0521] Bidirectional SLRB for RLC UM;

[0522] SLRB for unidirectional RLC UM;

[0523] SLRB of unidirectional RLC TM.

[0524] Specifically, UE2 can obtain the SLRB configuration information corresponding to SLRB 1 according to its current RRC state. The specific acquisition method is shown in Example 1 above and will not be repeated here.

[0525] S112: Send SLRB configuration information of SLRB1 to UE1;

[0526] In this step, UE2 sends the SLRB configuration information of SLRB1 to UE1.

[0527] Optionally, UE2 sends the configuration information of SLRB1 to UE1 through a direct communication interface signaling bearer.

[0528] S113: Receive SLRB configuration information of SLRB1, and determine whether to allow establishment of SLRB1 according to the SLRB configuration information;

[0529] The execution subject in this step is UE1, wherein the manner in which UE1 determines whether to allow the establishment of the SLRB1 according to the SLRB configuration information is as described in the above example 1 and will not be repeated here.

[0530] If S113 determines that the establishment of the SLRB1 is rejected, the process proceeds to S114.

[0531] S114: Send a response message to UE2, indicating that the establishment of the SLRB1 is rejected;

[0532] Here, if UE1 determines that the establishment of the SLRB1 is not allowed, the UE1 sends a response message to UE2, indicating that the establishment of the SLRB1 is rejected and may carry a rejection reason, which may be but is not limited to an SLRB configuration conflict.

[0533] Optionally, the response message may further carry first indication information of some or all logical channel identifiers currently occupied by UE1 on the direct communication link between UE1 and UE2; or, second indication information of some or all logical channel identifiers currently occupied by UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2; or, third indication information of all or some logical channel identifiers currently available to UE1 on the direct communication link between UE1 and UE2; or, fourth indication information of all or some logical channel identifiers currently available to UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2.

[0534] S115: Send a request message to the protocol layer responsible for SLRB configuration information management of UE2, requesting to change the SLRB configuration of SLRB1;

[0535] Here, after receiving the response message indicating rejection of establishing the SLRB1, UE2 sends a request message to the protocol layer responsible for SLRB configuration information management, that is, the RRC layer of UE2, requesting to change the SLRB configuration of SLRB1.

[0536] Optionally, the request message may carry first indication information of some or all logical channel identifiers currently occupied by the UE1 on the direct communication link between UE1 and UE2; or, second indication information of some or all logical channel identifiers currently occupied by the UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2; or, third indication information of all or some logical channel identifiers currently available to the UE1 on the direct communication link between UE1 and UE2; or, fourth indication information of all or some logical channel identifiers currently available to the UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2.

[0537] S116: The protocol layer responsible for SLRB configuration information management of UE2 determines the new SLRB configuration of SLRB1;

[0538] Here, the protocol layer of UE2 responsible for SLRB configuration information management changes the logical channel identifier contained in the SLRB configuration information of SLRB1 according to the request message in step S115, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between UE1 and UE2, or, it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB, so as to avoid conflict between the LCID configured for the SLRB1 and the LCID configured for other SLRBs that have been currently established or are being established between UE1 / UE2.

[0539] The direct communication interface wireless bearer configuration method of an embodiment of the present invention provides a basis for the first terminal to determine whether to allow the establishment of the target SLRB by sending the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface to the first terminal, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0540] like Figure 7 FIG. 1 is a flow chart of a method for configuring a direct communication interface radio bearer according to an embodiment of the present invention, which is applied to a second network side device and includes:

[0541] Step 701: receiving a request message sent by a second terminal requesting to change SLRB configuration information of a target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through a direct communication interface;

[0542] In this step, preferably, the second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

[0543] Here, optionally, the SLRB configuration information includes at least one of the following:

[0544] Source identification;

[0545] Target identification;

[0546] Transmission type identifier;

[0547] SLRB logo;

[0548] Service data adaptation protocol layer configuration information;

[0549] Packet data convergence protocol layer configuration information;

[0550] Radio link control layer configuration information;

[0551] Media access control layer configuration information;

[0552] Physical layer configuration information.

[0553] Optionally, the request information carries at least one of the following information:

[0554] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0555] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0556] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0557] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0558] Step 702: updating the logical channel identifier included in the SLRB configuration information of the target SLRB according to the request information so that the logical channel identifier is different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0559] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0560] Here, since the first terminal refuses to establish the target SLRB, it indicates that the SLRB configuration information of the target SLRB sent by the second terminal conflicts with the SLRB configuration of other SLRBs being established or already established between the first terminal and the second terminal, or that the SLRB configuration information of the target SLRB sent by the second terminal conflicts with the SLRB configuration of other SLRBs being established or already established between the first terminal and the second terminal that use the same source identifier and target identifier as the target SLRB. By sending a request message to the second network side device, requesting to update the logical channel identifier contained in the SLRB configuration information of the target SLRB, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal, or making it different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal that use the same source identifier and target identifier as the target SLRB, it is possible to avoid SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver, and at the same time avoid SLRB configuration conflicts between different SLRBs of the same terminal.

[0561] The following is combined with Example 4, such as Figure 8 As shown, the specific implementation process of the direct communication interface radio bearer configuration method of the present invention is specifically described.

[0562] In this example, UE1 and UE2 are two terminals communicating via a direct communication interface. UE2 is a UE that is online and in an RRC connected state. The second network-side device, i.e., the SLRB configuration information management node of UE2, may include, but is not limited to, a serving base station, a DU (Distributed Unit), or a CU (Central Unit). The specific steps are described as follows:

[0563] S1111: Obtain SLRB configuration information of SLRB1;

[0564] Here, UE2 obtains the configuration information of SLRB1, where the SLRB1 (i.e., the target SLRB described in the above embodiment) is any bearer used between UE1 and UE2. For example, the SLRB1 may be one of the following SLRBs:

[0565] Bidirectional SLRB for RLC AM;

[0566] Bidirectional SLRB for RLC UM;

[0567] SLRB for unidirectional RLC UM;

[0568] SLRB of unidirectional RLC TM.

[0569] Specifically, the SLRB configuration information corresponding to SLRB 1 can be obtained according to its current RRC state. The specific acquisition method is shown in the above example 1 and will not be repeated here.

[0570] S1112: Send SLRB configuration information of SLRB1 to UE1;

[0571] In this step, UE2 sends the SLRB configuration information of SLRB1 to UE1.

[0572] Optionally, UE2 sends the SLRB configuration information of SLRB1 to UE1 through a direct communication interface signaling bearer.

[0573] S1113: Receive SLRB configuration information of SLRB 1, and determine whether to allow establishment of SLRB 1 according to the SLRB configuration information;

[0574] The execution subject in this step is UE1, wherein the manner in which UE1 determines whether to allow the establishment of the SLRB1 according to the SLRB configuration information is as described in the above example 1 and will not be repeated here.

[0575] If step S1113 determines that the establishment of the SLRB1 is rejected, then step S1114 is continued.

[0576] S1114: Send a response message to UE2, indicating that the establishment of the SLRB1 is rejected;

[0577] Here, if UE1 determines that the establishment of the SLRB1 is not allowed, the UE1 sends a response message to UE2, indicating that the establishment of the SLRB1 is rejected and may carry a rejection reason, which may be but is not limited to an SLRB configuration conflict.

[0578] Optionally, the response message may further carry first indication information of some or all logical channel identifiers currently occupied by UE1 on the direct communication link between UE1 and UE2; or, second indication information of some or all logical channel identifiers currently occupied by UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2; or, third indication information of all or some logical channel identifiers currently available to UE1 on the direct communication link between UE1 and UE2; or, fourth indication information of all or some logical channel identifiers currently available to UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2.

[0579] S1115: Send a request message to the second network-side device, requesting to change the SLRB configuration of SLRB1;

[0580] Here, after receiving the response message indicating rejection of establishing the SLRB1, UE2 sends a request message to the second network-side device, requesting to change the SLRB configuration of SLRB1.

[0581] Optionally, the request message may carry first indication information of some or all logical channel identifiers currently occupied by the UE1 on the direct communication link between UE1 and UE2; or, second indication information of some or all logical channel identifiers currently occupied by the UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2; or, third indication information of all or some logical channel identifiers currently available to the UE1 on the direct communication link between UE1 and UE2; or, fourth indication information of all or some logical channel identifiers currently available to the UE1 in the set of logical channel identifiers corresponding to the source identifier and target identifier combination corresponding to the SLRB1 on the direct communication link between UE1 and UE2.

[0582] S1116: The second network-side device determines the new SLRB configuration of SLRB1;

[0583] Here, the second network side device changes the logical channel identifier contained in the SLRB configuration information of SLRB1 according to the request message in step S1115, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between UE1 and UE2, or makes it different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between UE1 and UE2 and use the same source identifier and target identifier as the SLRB1, so as to avoid conflict between the LCID configured for the SLRB1 and the LCID configured for other SLRBs that have been currently established or are being established between UE1 / UE2.

[0584] The direct communication interface wireless bearer configuration method of an embodiment of the present invention receives request information sent by a second terminal requesting to change the SLRB configuration information of the target SLRB, wherein the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through the direct communication interface; according to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or, it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal using the same source identifier and target identifier as the target SLRB. In this way, SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver can be avoided, and SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0585] like Figure 9 As shown, an embodiment of the present invention further provides a terminal, which is a first terminal, including: a memory 920, a processor 900, a transceiver 910, a bus interface, and a program stored in the memory 920 and executable on the processor 900, the transceiver 910 being configured to receive the SLRB configuration information of the target radio bearer SLRB of the direct communication interface sent by the second terminal; the processor 500 is configured to read the program in the memory 520 and execute the following process:

[0586] According to the SLRB configuration information, auxiliary information is sent to the first network-side device serving the first terminal and / or it is determined whether to allow the target SLRB to be established.

[0587] Among them, Figure 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 900 and memory represented by memory 920. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 910 may be a plurality of components, i.e., a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 930 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0588] The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 when performing operations.

[0589] Optionally, the processor 900 is further configured to:

[0590] If the result of the judgment is that the target SLRB is allowed to be established, sending auxiliary information to the first network side device or the protocol layer of the first terminal responsible for SLRB configuration information management;

[0591] In a case where the judgment result is that the establishment of the target SLRB is rejected, a response message is sent to the second terminal, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB.

[0592] Optionally, the auxiliary information includes at least one of the following:

[0593] Bearer identification information of the target SLRB;

[0594] Logical channel identification information of the target SLRB;

[0595] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0596] Optionally, the first terminal is on the network and in a radio resource control idle state or an inactive state, or the first terminal is off the network; the processor 900 is further configured to:

[0597] The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

[0598] Optionally, the processor 900 is further configured to:

[0599] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0600] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0601] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0602] If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0603] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0604] Optionally, the response message carries at least one of the following information:

[0605] A reason why the first terminal refuses to establish the target SLRB;

[0606] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0607] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0608] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0609] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0610] Optionally, the processor 900 is further configured to:

[0611] Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0612] Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or,

[0613] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0614] Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB;

[0615] If they are not the same, then the target SLRB is allowed to be established; or,

[0616] If they are the same and meet the target conditions, the target SLRB is allowed to be established;

[0617] Otherwise, the establishment of the target SLRB is rejected.

[0618] Optionally, the target condition includes at least one of the following:

[0619] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0620] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0621] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0622] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0623] The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0624] The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

[0625] Optionally, the SLRB configuration information includes at least one of the following:

[0626] Source identification;

[0627] Target identification;

[0628] Transmission type identifier;

[0629] SLRB logo;

[0630] Service data adaptation protocol layer configuration information;

[0631] Packet data convergence protocol layer configuration information;

[0632] Radio link control layer configuration information;

[0633] Media access control layer configuration information;

[0634] Physical layer configuration information.

[0635] Optionally, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0636] Optionally, the first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

[0637] A terminal is also provided in an embodiment of the present invention, which is a first terminal. Since the principle of solving the problem by the first terminal is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the terminal can refer to the implementation of the method, and the repeated parts will not be repeated.

[0638] The terminal of an embodiment of the present invention receives the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface sent by the second terminal; based on the SLRB configuration information, it sends auxiliary information to the first network side device serving the first terminal and / or judges whether to allow the establishment of the target SLRB. In this way, the first network side device or the first terminal itself judges the configuration conflict of the SLRB configuration information received by the second terminal through the direct communication interface, thereby avoiding the subsequent SLRB configuration conflict between the direct communication sender and receiver for the same SLRB, and avoiding the SLRB configuration conflict between different SLRBs of the same terminal.

[0639] It should be noted that the terminal provided in the embodiment of the present invention is the first terminal capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the first terminal side are applicable to the terminal and can achieve the same or similar beneficial effects.

[0640] like Figure 10 As shown, an embodiment of the present invention further provides a terminal, which is a first terminal and includes:

[0641] The first receiving module 1001 is configured to receive SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal;

[0642] The processing module 1002 is configured to send auxiliary information to a first network-side device serving the first terminal and / or determine whether to allow establishment of the target SLRB according to the SLRB configuration information.

[0643] The terminal according to the embodiment of the present invention further includes:

[0644] A first sending module is configured to send auxiliary information to the first network side device or the protocol layer responsible for SLRB configuration information management of the first terminal when the judgment result is that the target SLRB is allowed to be established;

[0645] The second sending module is configured to send a response message to the second terminal when the judgment result is that the establishment of the target SLRB is rejected, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB.

[0646] Optionally, the auxiliary information includes at least one of the following:

[0647] Bearer identification information of the target SLRB;

[0648] Logical channel identification information of the target SLRB;

[0649] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0650] Optionally, the first terminal is on the network and in a radio resource control idle state or an inactive state, or the first terminal is off the network; accordingly, the terminal in this embodiment of the present invention further includes:

[0651] The first configuration module is used for the protocol layer responsible for SLRB configuration information management of the first terminal to perform SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

[0652] In the terminal of the embodiment of the present invention, the first configuration module includes:

[0653] A first configuration unit is configured to configure the SLRB configuration information of the SLRB of the first terminal to be the same as the SLRB configuration information of the target SLRB when performing SLRB configuration on the target SLRB corresponding to the auxiliary information;

[0654] A second configuration unit is configured to, when configuring other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, configure the logical channel identifier included in the SLRB configuration information of the other SLRBs to a logical channel identifier different from the logical channel identifier included in the SLRB configuration information of the target SLRB;

[0655] A third configuration unit is configured to, when configuring other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB, configure the logical channel identifier included in the SLRB configuration information of the other SLRBs to a logical channel identifier different from the logical channel identifier included in the SLRB configuration information of the target SLRB;

[0656] a fourth configuration unit, configured to update the logical channel identifiers of the other SLRBs, which are outside the target SLRB corresponding to the auxiliary information and belong to the direct communication link composed of the first terminal and the second terminal, so that they are different from the logical channel identifiers included in the SLRB configuration information of the target SLRB, when the logical channel identifiers included in the SLRB configuration information of the other SLRBs are the same as the logical channel identifiers included in the SLRB configuration information of the target SLRB;

[0657] The fifth configuration unit is used to update the logical channel identifier of the other SLRBs that are outside the target SLRB corresponding to the auxiliary information and belong to the direct communication link composed of the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB, so that the logical channel identifier contained in the SLRB configuration information of the other SLRBs is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB when the logical channel identifier contained in the SLRB configuration information of the other SLRBs is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0658] Optionally, the response message carries at least one of the following information:

[0659] A reason why the first terminal refuses to establish the target SLRB;

[0660] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0661] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0662] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0663] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0664] In the terminal of the embodiment of the present invention, the processing module 1002 includes:

[0665] A first judgment unit is configured to judge whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0666] The second judgment unit is used to judge whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or

[0667] A third judgment unit is used to judge whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or

[0668] A fourth judgment unit is used to judge whether the radio bearer identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB;

[0669] A first processing unit, configured to allow establishment of the target SLRB when the judgment result is not the same;

[0670] The second processing unit is configured to allow the establishment of the target SLRB when the judgment results are the same and the target conditions are met; otherwise, refuse to establish the SLRB.

[0671] Optionally, the target condition includes at least one of the following:

[0672] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0673] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0674] The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0675] The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB;

[0676] The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB;

[0677] The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

[0678] Optionally, the SLRB configuration information includes at least one of the following:

[0679] Source identification;

[0680] Target identification;

[0681] Transmission type identifier;

[0682] SLRB logo;

[0683] Service data adaptation protocol layer configuration information;

[0684] Packet data convergence protocol layer configuration information;

[0685] Radio link control layer configuration information;

[0686] Media access control layer configuration information;

[0687] Physical layer configuration information.

[0688] Optionally, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0689] Optionally, the first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

[0690] A terminal is also provided in an embodiment of the present invention, which is a first terminal. Since the principle of solving the problem by the first terminal is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the terminal can refer to the implementation of the method, and the repeated parts will not be repeated.

[0691] The terminal of an embodiment of the present invention receives the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface sent by the second terminal through the first receiving module; the processing module sends auxiliary information to the first network side device serving the first terminal and / or judges whether to allow the establishment of the target SLRB based on the SLRB configuration information. In this way, the first network side device or the first terminal itself makes a configuration conflict judgment on the SLRB configuration information received from the second terminal through the direct communication interface, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0692] It should be noted that the terminal provided in the embodiment of the present invention is the first terminal capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the first terminal side are applicable to the terminal and can achieve the same or similar beneficial effects.

[0693] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored. When the program is executed by a processor, the following steps are implemented:

[0694] Receiving SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal;

[0695] According to the SLRB configuration information, auxiliary information is sent to the first network-side device serving the first terminal and / or it is determined whether to allow the target SLRB to be established.

[0696] When the program is executed by the processor, the above application can be realized. Figures 1 to 2 To avoid repetition, all implementations of the terminal-side method embodiment are not described again here.

[0697] like Figure 11 As shown, an embodiment of the present invention further provides a network side device, which is a first network side device, including: a transceiver 1110, a memory 1120, a processor 1100, and a program stored in the memory and executable on the processor, wherein the transceiver 1110 is configured to receive auxiliary information sent by a first terminal; the processor 1100 is configured to read the program in the memory 1120 and execute the following process:

[0698] Performing SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or,

[0699] Based on the auxiliary information, it is determined whether the target SLRB is allowed to be established.

[0700] Among them, Figure 11 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1100 and memory represented by memory 1120. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1110 may be a plurality of components, i.e., a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 when performing operations.

[0701] Optionally, the auxiliary information includes at least one of the following:

[0702] Bearer identification information of the target SLRB;

[0703] Logical channel identification information of the target SLRB;

[0704] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0705] Optionally, the processor 1100 is further configured to:

[0706] Indication information is generated according to the judgment result, where the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or to indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

[0707] Optionally, the processor 1100 is further configured to:

[0708] If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB;

[0709] If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0710] If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0711] If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB;

[0712] If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0713] Optionally, the SLRB configuration information includes at least one of the following:

[0714] Source identification;

[0715] Target identification;

[0716] Transmission type identifier;

[0717] SLRB logo;

[0718] Service data adaptation protocol layer configuration information;

[0719] Packet data convergence protocol layer configuration information;

[0720] Radio link control layer configuration information;

[0721] Media access control layer configuration information;

[0722] Physical layer configuration information.

[0723] A network side device is also provided in an embodiment of the present invention. The network side device is a first network side device. Since the principle of solving the problem by the first network side device is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the network side device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0724] The network side device of an embodiment of the present invention receives auxiliary information sent by the first terminal; performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information, and / or determines whether to allow the establishment of the target SLRB according to the auxiliary information. In this way, it can avoid SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver, and avoid SLRB configuration conflicts between different SLRBs of the same terminal.

[0725] It should be noted that the network side device provided in the embodiment of the present invention is the first network side device capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the first network side device are applicable to the network side device and can achieve the same or similar beneficial effects.

[0726] like Figure 12 As shown, the present invention further provides a network side device, which is a first network side device, including:

[0727] The second receiving module 1201 is configured to receive auxiliary information sent by the first terminal;

[0728] The second configuration module 1202 is configured to configure the SLRB of the first terminal according to the auxiliary information; and / or,

[0729] The judgment module 1203 is used to judge whether to allow the establishment of the target SLRB according to the auxiliary information.

[0730] Optionally, the auxiliary information includes at least one of the following:

[0731] Bearer identification information of the target SLRB;

[0732] Logical channel identification information of the target SLRB;

[0733] The first terminal uses part or all of the SLRB configuration information when sending data using the target SLRB.

[0734] The network side device of the embodiment of the present invention may further include:

[0735] An information generation module is used to generate indication information based on the judgment result, and the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

[0736] In the network-side device of the embodiment of the present invention, the second configuration module 1202 includes:

[0737] a sixth configuration unit, configured to configure the SLRB configuration information of the SLRB of the first terminal to be the same as the SLRB configuration information of the target SLRB when performing SLRB configuration on the target SLRB corresponding to the auxiliary information;

[0738] a seventh configuration unit, configured to, when configuring other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, configure the logical channel identifier included in the SLRB configuration information of the other SLRBs to a logical channel identifier different from the logical channel identifier included in the SLRB configuration information of the target SLRB;

[0739] an eighth configuration unit, configured to, when configuring other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB, configure the logical channel identifier included in the SLRB configuration information of the other SLRBs to a logical channel identifier different from the logical channel identifier included in the SLRB configuration information of the target SLRB;

[0740] a ninth configuration unit, configured to update the logical channel identifiers of the other SLRBs, which are outside the target SLRB corresponding to the auxiliary information and belong to the direct communication link composed of the first terminal and the second terminal, so that they are different from the logical channel identifiers contained in the SLRB configuration information of the target SLRB, when the logical channel identifiers contained in the SLRB configuration information of the other SLRBs are the same as the logical channel identifiers contained in the SLRB configuration information of the target SLRB;

[0741] The tenth configuration unit is used to update the logical channel identifier of the other SLRBs that are outside the target SLRB corresponding to the auxiliary information and belong to the direct communication link composed of the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB, so that the logical channel identifier contained in the SLRB configuration information of the other SLRBs is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB when the logical channel identifier contained in the SLRB configuration information of the other SLRBs is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB.

[0742] Optionally, the SLRB configuration information includes at least one of the following:

[0743] Source identification;

[0744] Target identification;

[0745] Transmission type identifier;

[0746] SLRB logo;

[0747] Service data adaptation protocol layer configuration information;

[0748] Packet data convergence protocol layer configuration information;

[0749] Radio link control layer configuration information;

[0750] Media access control layer configuration information;

[0751] Physical layer configuration information.

[0752] A network side device is also provided in an embodiment of the present invention. The network side device is a first network side device. Since the principle of solving the problem by the first network side device is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the network side device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0753] The network device of an embodiment of the present invention receives auxiliary information sent by the first terminal through the second receiving module; the second configuration module performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information, and / or the judgment module judges whether to allow the establishment of the target SLRB according to the auxiliary information. In this way, SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver can be avoided, and SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0754] It should be noted that the network side device provided in the embodiment of the present invention is the first network side device capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the first network side device are applicable to the network side device and can achieve the same or similar beneficial effects.

[0755] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored. When the program is executed by a processor, the following steps are implemented:

[0756] receiving auxiliary information sent by the first terminal;

[0757] Performing SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or,

[0758] Based on the auxiliary information, it is determined whether the target SLRB is allowed to be established.

[0759] When the program is executed by the processor, the above application can be realized. Figures 3 and 4 To avoid repetition, all implementations of the method embodiments on the network side and the device side are not described again here.

[0760] like Figure 13 As shown, an embodiment of the present invention also provides a terminal, which is a second terminal, including: a memory 1320, a processor 1300, a transceiver 1310, a bus interface, and a program stored on the memory 1320 and executable on the processor 1300, the transceiver 1310 being used to send SLRB configuration information of the target wireless bearer SLRB of the direct communication interface to the first terminal.

[0761] Among them, Figure 13 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1300 and memory represented by memory 1320. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1310 may be a plurality of components, i.e., a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1330 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0762] The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1300 when performing operations.

[0763] Optionally, the transceiver 1310 is further configured to:

[0764] A response message sent by the first terminal is received, where the response message is used to indicate that the first terminal refuses to establish the target SLRB.

[0765] Optionally, the response message carries at least one of the following information:

[0766] A reason why the first terminal refuses to establish the target SLRB;

[0767] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0768] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0769] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0770] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0771] Optionally, the transceiver 1310 is further configured to:

[0772] Send a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal.

[0773] Optionally, the request information carries at least one of the following information:

[0774] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0775] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0776] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0777] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0778] Optionally, the second terminal is on the network and in a radio resource control idle state or an inactive state, or the second terminal is off the network; accordingly, the processor 1300 is configured to:

[0779] updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0780] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0781] Optionally, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0782] Optionally, the second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

[0783] A terminal is also provided in an embodiment of the present invention, which is a second terminal. Since the principle of solving the problem by the second terminal is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the terminal can refer to the implementation of the method, and the repeated parts will not be repeated.

[0784] The terminal of an embodiment of the present invention provides a basis for the first terminal to determine whether to allow the establishment of the target SLRB by sending the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface to the first terminal, thereby avoiding SLRB configuration conflicts between the subsequent direct communication sender and receiver for the same SLRB, and avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0785] It should be noted that the terminal provided in the embodiment of the present invention is a second terminal capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the second terminal side are applicable to the terminal and can achieve the same or similar beneficial effects.

[0786] like Figure 14 As shown, an embodiment of the present invention further provides a terminal, which is a second terminal and includes:

[0787] The third sending module 1401 is configured to send SLRB configuration information of a target radio bearer SLRB of a direct communication interface to the first terminal.

[0788] The terminal according to the embodiment of the present invention further includes:

[0789] The third receiving module is used to receive a response message sent by the first terminal, where the response message is used to indicate that the first terminal refuses to establish the target SLRB.

[0790] Optionally, the response message carries at least one of the following information:

[0791] A reason why the first terminal refuses to establish the target SLRB;

[0792] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0793] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0794] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0795] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0796] The terminal according to the embodiment of the present invention further includes:

[0797] The fourth sending module is used to send a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal.

[0798] Optionally, the request information carries at least one of the following information:

[0799] first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal;

[0800] Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal;

[0801] third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal;

[0802] The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

[0803] Optionally, the second terminal is on the network and is in a radio resource control idle state or an inactive state, or the second terminal is in an offline state; accordingly, the terminal in this embodiment of the present invention further includes:

[0804] A first configuration updating module is configured to update, according to the request information, a logical channel identifier included in the SLRB configuration information of the target SLRB so as to make it different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0805] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0806] Optionally, the protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

[0807] Optionally, the second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

[0808] A terminal is also provided in an embodiment of the present invention, which is a second terminal. Since the principle of solving the problem by the second terminal is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the terminal can refer to the implementation of the method, and the repeated parts will not be repeated.

[0809] The terminal of an embodiment of the present invention sends the SLRB configuration information of the target wireless bearer SLRB of the direct communication interface to the first terminal through the third sending module, providing a basis for the first terminal to determine whether to allow the establishment of the target SLRB, thereby avoiding subsequent SLRB configuration conflicts between the direct communication sender and receiver for the same SLRB, and avoiding SLRB configuration conflicts between different SLRBs of the same terminal.

[0810] It should be noted that the terminal provided in the embodiment of the present invention is a second terminal capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the second terminal side are applicable to the terminal and can achieve the same or similar beneficial effects.

[0811] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored. When the program is executed by a processor, the following steps are implemented:

[0812] The SLRB configuration information of the target radio bearer SLRB of the direct communication interface is sent to the first terminal.

[0813] When the program is executed by the processor, the above application can be realized. Figures 5 and 6 To avoid repetition, all implementations of the terminal-side method embodiment are not described again here.

[0814] like Figure 15 As shown, an embodiment of the present invention further provides a network side device, which is a second network side device, including: a transceiver 1510, a memory 1520, a processor 1500, and a program stored in the memory and executable on the processor, wherein the transceiver 1510 is configured to receive a request message sent by a second terminal requesting to change the SLRB configuration information of a target SLRB, wherein the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through a direct communication interface;

[0815] The processor 1500 is used to update the logical channel identifier contained in the SLRB configuration information of the target SLRB according to the request information, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal; or, according to the request information, update the logical channel identifier contained in the SLRB configuration information of the target SLRB, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0816] Among them, Figure 15 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1500 and memory represented by memory 1520. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1510 may be a plurality of components, i.e., a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1500 when performing operations.

[0817] A network side device is also provided in an embodiment of the present invention. The network side device is a second network side device. Since the principle of solving the problem by the second network side device is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the network side device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0818] The network device of an embodiment of the present invention receives request information sent by a second terminal requesting to change the SLRB configuration information of a target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through a direct communication interface; the second configuration update module updates the logical channel identifier contained in the SLRB configuration information of the target SLRB according to the request information, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal; or, it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB. In this way, SLRB configuration conflicts for the same SLRB can be avoided between the direct communication sender and receiver, and SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0819] It should be noted that the network side device provided in the embodiment of the present invention is a second network side device capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the second network side device are applicable to the network side device and can achieve the same or similar beneficial effects.

[0820] like Figure 16 As shown, an embodiment of the present invention further provides a network side device, which is a second network side device, including:

[0821] The fourth receiving module 1601 is configured to receive a request message sent by the second terminal requesting to change the SLRB configuration information of the target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through the direct communication interface;

[0822] The second configuration update module 1602 is used to update the logical channel identifier contained in the SLRB configuration information of the target SLRB according to the request information, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal; or, according to the request information, update the logical channel identifier contained in the SLRB configuration information of the target SLRB, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0823] A network side device is also provided in an embodiment of the present invention. The network side device is a second network side device. Since the principle of solving the problem by the second network side device is similar to the direct communication interface wireless bearer configuration method in the embodiment of the present invention, the implementation of the network side device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0824] The network side device of an embodiment of the present invention receives, through a fourth receiving module, a request message sent by the second terminal requesting to change the SLRB configuration information of the target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through a direct communication interface; the second configuration update module updates the logical channel identifier contained in the SLRB configuration information of the target SLRB according to the request message, so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal; or, it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB. In this way, SLRB configuration conflicts for the same SLRB between the direct communication sender and receiver can be avoided, and SLRB configuration conflicts between different SLRBs of the same terminal can be avoided.

[0825] It should be noted that the network side device provided in the embodiment of the present invention is a second network side device capable of executing the above-mentioned direct communication interface wireless bearer configuration method. All embodiments of the above-mentioned direct communication interface wireless bearer configuration method corresponding to the second network side device are applicable to the network side device and can achieve the same or similar beneficial effects.

[0826] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored. When the program is executed by a processor, the following steps are implemented:

[0827] Receive request information sent by the second terminal requesting to change SLRB configuration information of the target SLRB, where the SLRB configuration information of the target SLRB is the SLRB configuration information of the target SLRB sent by the second terminal to the first terminal through the direct communication interface;

[0828] updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or

[0829] According to the request information, the logical channel identifier contained in the SLRB configuration information of the target SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB.

[0830] When the program is executed by the processor, the above application can be realized. Figures 7 and 8 To avoid repetition, all implementations of the method embodiment of the network side device shown are not described again here.

[0831] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0832] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for configuring a direct communication interface radio bearer, applied to a first terminal, characterized in that: include: Receiving SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal; Determine whether to allow the target SLRB to be established according to the SLRB configuration information; or Determine, according to the SLRB configuration information, whether to allow the establishment of the target SLRB, and if the judgment result is that the establishment of the target SLRB is allowed and all or part of the parameter configurations of the SLRB and the currently established SLRB are different, send auxiliary information to the first network side device serving the first terminal or send auxiliary information to the protocol layer responsible for SLRB configuration information management of the first terminal; The auxiliary information includes at least one of the following: Bearer identification information of the target SLRB; Logical channel identification information of the target SLRB; Part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB; After determining whether to allow establishment of the target SLRB according to the SLRB configuration information, the method further includes: If the determination result is that the establishment of the target SLRB is rejected, sending a response message to the second terminal, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB; The determining, based on the SLRB configuration information, whether to allow establishment of the target SLRB includes: Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or, Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; If they are not the same, then the target SLRB is allowed to be established; or, If they are the same and meet the target conditions, the target SLRB is allowed to be established; Otherwise, the target SLRB is refused to be established; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

2. The method according to claim 1, characterized in that The first terminal is in a network and in a radio resource control idle state or an inactive state, or the first terminal is in an offline state; After sending the auxiliary information to the protocol layer responsible for SLRB configuration information management of the first terminal, the method further includes: The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

3. The method according to claim 2, characterized in that The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information, including at least one of the following situations: If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB; If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

4. The method according to claim 1, wherein The response message carries at least one of the following information: A reason why the first terminal refuses to establish the target SLRB; first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal; Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal; third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal; The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

5. The method according to claim 1, wherein The target condition includes at least one of the following: The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB; The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB; The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB; The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB; The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB; The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

6. The method according to claim 1, characterized in that The SLRB configuration information includes at least one of the following: Source identification; Target identification; Transmission type identifier; SLRB logo; Service data adaptation protocol layer configuration information; Packet data convergence protocol layer configuration information; Radio link control layer configuration information; Media access control layer configuration information; Physical layer configuration information.

7. The method according to claim 1, characterized in that The protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

8. The method according to claim 1, characterized in that The first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

9. A method for configuring a direct communication interface radio bearer, applied to a first network side device, characterized in that: include: receiving auxiliary information sent by the first terminal; Performing SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or, Determining whether to allow establishment of a target SLRB according to the auxiliary information; The auxiliary information includes at least one of the following: Bearer identification information of the target SLRB; Logical channel identification information of the target SLRB; Part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB; The configuring the SLRB of the first terminal according to the auxiliary information includes at least one of the following situations: If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB; If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

10. The method according to claim 9, characterized in that After determining whether to allow establishment of the target SLRB according to the auxiliary information, the method further includes: Indication information is generated according to the judgment result, where the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or to indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

11. The method according to claim 9, characterized in that The SLRB configuration information includes at least one of the following: Source identification; Target identification; Transmission type identifier; SLRB logo; Service data adaptation protocol layer configuration information; Packet data convergence protocol layer configuration information; Radio link control layer configuration information; Media access control layer configuration information; Physical layer configuration information.

12. A method for configuring a direct communication interface radio bearer, applied to a second terminal, characterized in that: include: Sending SLRB configuration information of a target radio bearer SLRB of a direct communication interface to the first terminal; The method further comprises: receiving a response message sent by the first terminal, where the response message is used to indicate that the first terminal refuses to establish the target SLRB; After receiving the response message sent by the first terminal, the method further includes: Sending a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal; The second terminal is in a network and in a radio resource control idle state or an inactive state, or the second terminal is in an offline state; After sending request information requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second terminal, the method further includes: updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or Update, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so that it is different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

13. The method according to claim 12, characterized in that The response message carries at least one of the following information: A reason why the first terminal refuses to establish the target SLRB; first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal; Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal; third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal; The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

14. The method according to claim 12, characterized in that The request message carries at least one of the following information: first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal; Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal; third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal; The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

15. The method according to claim 12, characterized in that The protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

16. The method according to claim 12, characterized in that The second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

17. A terminal, the terminal being a first terminal, comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that: The transceiver is configured to receive SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal; The processor is configured to determine whether to allow establishment of the target SLRB according to the SLRB configuration information; or Determine, according to the SLRB configuration information, whether to allow the establishment of the target SLRB, and if the judgment result is that the establishment of the target SLRB is allowed and all or part of the parameter configurations of the SLRB and the currently established SLRB are different, send auxiliary information to the first network side device serving the first terminal or send auxiliary information to the protocol layer responsible for SLRB configuration information management of the first terminal; The auxiliary information includes at least one of the following: Bearer identification information of the target SLRB; Logical channel identification information of the target SLRB; Part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB; The processor is further configured to: If the determination result is that the establishment of the target SLRB is rejected, sending a response message to the second terminal, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB; The processor is further configured to: Determine whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or Determine whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or, Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or Determine whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; If they are not the same, then the target SLRB is allowed to be established; or, If they are the same and meet the target conditions, the target SLRB is allowed to be established; Otherwise, the target SLRB is refused to be established; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM. The terminal according to claim 17 , wherein: The first terminal is on the network and in a radio resource control idle state or an inactive state, or the first terminal is off the network; and the processor is further configured to: The protocol layer responsible for SLRB configuration information management of the first terminal performs SLRB configuration on the SLRB of the first terminal according to the auxiliary information.

19. The terminal according to claim 18, characterized in that The processor is further configured to: If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB; If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB.

20. The terminal according to claim 17, wherein: The response message carries at least one of the following information: A reason why the first terminal refuses to establish the target SLRB; first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal; Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal; third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal; The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

21. The terminal according to claim 17, wherein: The target condition includes at least one of the following: The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently being established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB; The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently being established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB; The quality of service parameter of the target SLRB is higher than the quality of service parameter of another SLRB that is currently established between the first terminal and the second terminal and uses the same logical channel identifier or the same radio bearer identifier as the target SLRB; The quality of service parameters of the target SLRB are higher than the quality of service parameters of other SLRBs that are currently established between the first terminal and the second terminal and use the same source identifier, the same target identifier, and the same logical channel identifier as the target SLRB, or use the same source identifier, the same target identifier, and the same radio bearer identifier as the target SLRB; The priority of the second terminal that initiates establishment of the target SLRB is higher than the priority of the terminal that initiates establishment of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB; The initiation time of the target SLRB is earlier than the initiation time of other SLRBs that use the same logical channel identifier or the same radio bearer identifier as the target SLRB.

22. The terminal according to claim 17, wherein: The SLRB configuration information includes at least one of the following: Source identification; Target identification; Transmission type identifier; SLRB logo; Service data adaptation protocol layer configuration information; Packet data convergence protocol layer configuration information; Radio link control layer configuration information; Media access control layer configuration information; Physical layer configuration information.

23. The terminal according to claim 17, wherein: The protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

24. The terminal according to claim 17, wherein: The first network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the first terminal.

25. A terminal, the terminal being a first terminal, characterized in that: include: A first receiving module is configured to receive SLRB configuration information of a target radio bearer SLRB of a direct communication interface sent by a second terminal; A processing module, configured to determine whether to allow establishment of the target SLRB according to the SLRB configuration information; or, A first sending module is configured to determine, based on the SLRB configuration information, whether the target SLRB is allowed to be established, and, if the determination result is that the target SLRB is allowed to be established and all or part of the parameter configurations of the SLRB are different from those of the currently established SLRB, send auxiliary information to a first network-side device serving the first terminal or send auxiliary information to a protocol layer responsible for SLRB configuration information management of the first terminal; The auxiliary information includes at least one of the following: Bearer identification information of the target SLRB; Logical channel identification information of the target SLRB; Part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB; The terminal further includes: A second sending module is configured to send a response message to the second terminal when the judgment result is that the establishment of the target SLRB is rejected, where the response message is used to indicate that the first terminal rejects the establishment of the target SLRB; The processing module includes: A first judgment unit is configured to judge whether the logical channel identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or The second judgment unit is used to judge whether the logical channel identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; or A third judgment unit is used to judge whether the radio bearer identifier included in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier included in the SLRB configuration information corresponding to other SLRBs currently established or being established between the first terminal and the second terminal; or A fourth judgment unit is used to judge whether the radio bearer identifier contained in the SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as the radio bearer identifier contained in the SLRB configuration information corresponding to other SLRBs that have been currently established or are being established between the first terminal and the second terminal and have the same source identifier and target identifier as the target SLRB; A first processing unit, configured to allow establishment of the target SLRB when the judgment result is not the same; The second processing unit is configured to allow the establishment of the target SLRB if the judgment result is the same and the target condition is met; otherwise, refuse to establish the SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

26. A network-side device, comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor is configured to read the program in the memory and execute the following process: The transceiver is used to receive auxiliary information sent by the first terminal; The processor is configured to perform SLRB configuration on the SLRB of the first terminal according to the auxiliary information; and / or, Determining whether to allow establishment of a target SLRB according to the auxiliary information; The auxiliary information includes at least one of the following: Bearer identification information of the target SLRB; Logical channel identification information of the target SLRB; Part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB; The processor is further configured to: If SLRB configuration is performed on the target SLRB corresponding to the auxiliary information, the SLRB configuration information of the SLRB of the first terminal is configured to be the same as the SLRB configuration information of the target SLRB; If other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB are configured, the logical channel identifier contained in the SLRB configuration information of the other SLRB is configured to be a logical channel identifier different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated to be different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; If the logical channel identifier contained in the SLRB configuration information of other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB, then the logical channel identifier of the other SLRB is updated so that it is different from the logical channel identifier contained in the SLRB configuration information of the target SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

27. The network side device according to claim 26, characterized in that: The processor is further configured to: Indication information is generated according to the judgment result, where the indication information is used to indicate whether the first terminal is allowed to establish the target SLRB and / or to indicate part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB.

28. The network side device according to claim 26, characterized in that: The SLRB configuration information includes at least one of the following: Source identification; Target identification; Transmission type identifier; SLRB logo; Service data adaptation protocol layer configuration information; Packet data convergence protocol layer configuration information; Radio link control layer configuration information; Media access control layer configuration information; Physical layer configuration information.

29. A network side device, the network side device being a first network side device, characterized in that: include: A second receiving module, configured to receive auxiliary information sent by the first terminal; A second configuration module is configured to configure the SLRB of the first terminal according to the auxiliary information; and / or A judgment module, configured to judge whether to allow establishment of a target SLRB according to the auxiliary information; The auxiliary information includes at least one of the following: Bearer identification information of the target SLRB; Logical channel identification information of the target SLRB; Part or all of the SLRB configuration information used by the first terminal when sending data using the target SLRB; The second configuration module includes: a sixth configuration unit, configured to configure the SLRB configuration information of the SLRB of the first terminal to be the same as the SLRB configuration information of the target SLRB when performing SLRB configuration on the target SLRB corresponding to the auxiliary information; a seventh configuration unit, configured to, when configuring other SLRBs other than the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal, configure the logical channel identifier included in the SLRB configuration information of the other SLRBs to a logical channel identifier different from the logical channel identifier included in the SLRB configuration information of the target SLRB; an eighth configuration unit, configured to, when configuring other SLRBs outside the target SLRB corresponding to the auxiliary information and belonging to the direct communication link composed of the first terminal and the second terminal and having the same source identifier and target identifier as the target SLRB, configure the logical channel identifier included in the SLRB configuration information of the other SLRBs to a logical channel identifier different from the logical channel identifier included in the SLRB configuration information of the target SLRB; a ninth configuration unit, configured to update the logical channel identifiers of the other SLRBs, which are outside the target SLRB corresponding to the auxiliary information and belong to the direct communication link composed of the first terminal and the second terminal, so that they are different from the logical channel identifiers contained in the SLRB configuration information of the target SLRB, when the logical channel identifiers contained in the SLRB configuration information of the other SLRBs are the same as the logical channel identifiers contained in the SLRB configuration information of the target SLRB; a tenth configuration unit, configured to update the logical channel identifier of the other SLRB, which is outside the target SLRB corresponding to the auxiliary information and belongs to the direct communication link composed of the first terminal and the second terminal and has the same source identifier and target identifier as the target SLRB, so that it is different from the logical channel identifier included in the SLRB configuration information of the target SLRB, when the logical channel identifier contained in the SLRB configuration information of the other SLRB is the same as the logical channel identifier contained in the SLRB configuration information of the target SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

30. A terminal, the terminal being a second terminal, comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that: The transceiver is configured to send SLRB configuration information of a target radio bearer SLRB of a direct communication interface to the first terminal; Wherein, the transceiver is further used for: receiving a response message sent by the first terminal, where the response message is used to indicate that the first terminal refuses to establish a target SLRB; The transceiver is also used for: Sending a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal; The second terminal is on the network and is in a radio resource control idle state or an inactive state, or the second terminal is off the network; the processor is configured to: updating, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so as to be different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or Update, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so that it is different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

31. The terminal according to claim 30, characterized in that The response message carries at least one of the following information: A reason why the first terminal refuses to establish the target SLRB; first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal; Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal; third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal; The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

32. The terminal according to claim 30, characterized in that The request message carries at least one of the following information: first indication information of identifiers of some or all logical channels currently occupied by the first terminal on the direct communication link between the first terminal and the second terminal; Second indication information of part or all of the currently occupied logical channel identifiers in the set of logical channel identifiers corresponding to the combination of the source identifier and the target identifier corresponding to the target SLRB on the direct communication link between the first terminal and the second terminal by the first terminal; third indication information of identifiers of all or part of logical channels currently available to the first terminal on the direct communication link between the first terminal and the second terminal; The first terminal provides fourth indication information of all or part of the currently available logical channel identifiers in the logical channel identifier set corresponding to the source identifier corresponding to the target SLRB and the target identifier combination on the direct communication link between the first terminal and the second terminal.

33. The terminal according to claim 30, characterized in that The protocol layer responsible for SLRB configuration information management is the radio resource control RRC protocol layer.

34. The terminal according to claim 30, characterized in that The second network side device is a serving base station, a serving distributed unit DU or a serving centralized unit CU of the second terminal.

35. A terminal, the terminal being a second terminal, characterized in that: include: A third sending module is configured to send SLRB configuration information of a target radio bearer SLRB of the direct communication interface to the first terminal; A third receiving module is configured to receive a response message sent by the first terminal, where the response message is used to indicate that the first terminal refuses to establish a target SLRB; A fourth sending module is configured to send a request message requesting to change the SLRB configuration information of the target SLRB to the protocol layer responsible for SLRB configuration information management of the second network side device or the second terminal; The second terminal is in a network and in a radio resource control idle state or an inactive state, or the second terminal is in an offline state; the terminal further includes: A first configuration updating module is configured to update, according to the request information, a logical channel identifier included in the SLRB configuration information of the target SLRB so as to make it different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs currently being established or already established between the first terminal and the second terminal; or Update, according to the request information, the logical channel identifier included in the SLRB configuration information of the target SLRB so that it is different from the logical channel identifier included in the SLRB configuration information corresponding to other SLRBs that are currently being established or have been established between the first terminal and the second terminal and use the same source identifier and target identifier as the target SLRB; The target SLRB is one of the following SLRBs: Bidirectional SLRB for RLC AM; Bidirectional SLRB for RLC UM; SLRB for unidirectional RLC UM; SLRB of unidirectional RLC TM.

36. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the direct communication interface radio bearer configuration method according to any one of claims 1 to 8, or the direct communication interface radio bearer configuration method according to any one of claims 9 to 11, or the direct communication interface radio bearer configuration method according to any one of claims 12 to 16.

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