receiving sidelink radio bearer (SLRB) configuration information transmitted by a second terminal;

determining whether to allow to establish a target SLRB according to the SLRB configuration information; or

determining whether to allow to establish the target SLRB according to the SLRB configuration information, and in a case that the determination result is that the target SLRB is allowed to be established and all or part of parameters of the SLRB are different from parameters of a currently being established SLRB, transmitting assistance information to a first network device serving the first terminal or a protocol layer of the first terminal responsible for SLRB configuration information management;

wherein the assistance information includes at least one of the following:

radio bearer identification (ID) of the target SLRB;

logical channel ID of the target SLRB;

part or all of the SLRB configurations transmitted by the first terminal;

wherein after determining whether to allow to establish the target SLRB according to the SLRB configuration information, the method further comprises:

when the determination result is that the target SLRB is refused to be established, transmitting a response message to the second terminal, wherein the response message is used to indicate that the first terminal refuses to establish the target SLRB;

wherein the determining whether to allow to establish the target SLRB according to the SLRB configuration information comprises:

determining whether a logical channel ID included in SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as a logical channel ID included in SLRB configuration information corresponding to another SLRB that has been established or is being established between the first terminal and the second terminal; or,

determining whether the logical channel ID 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 a logical channel ID included in SLRB configuration information corresponding to another SLRB that has been established or is being established between the first terminal and the second terminal and has a same source ID and a same destination ID as the target SLRB; or,

determining whether a radio bearer ID included in SLRB configuration information corresponding to the target SLRB currently being established between the first terminal and the second terminal is the same as a radio bearer ID included in the SLRB configuration information corresponding to another SLRB that has been established or is being established between the first terminal and the second terminal; or,

determining whether the radio bearer ID 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 a radio bearer ID included in SLRB configuration information corresponding to another SLRB that has been established or is being established between the first terminal and the second terminal and has the same source ID and the same destination ID as the target SLRB;

when the determination result is not the same, allowing to establish the target SLRB; or,

when the determination result is the same and a target condition is met, allowing to establish the target SLRB;

otherwise, refusing to establish the target SLRB.