Relay communication method and apparatus, and terminal

A relay communication method, comprising:

• obtaining, by a fourth device, third information, wherein the third information comprises configuration information related to the fourth device in configuration information for establishing a bearer of first communication;
• and
• establishing, by the fourth device, a hop-by-hop sidelink bearer of a second target hop and/or a hop-by-hop sidelink bearer of a third target hop based on the third information,
• wherein the fourth device is one of relay devices in the first communication, the second target hop is a hop between the fourth device and an upstream device, the third target hop is a hop between the fourth device and a downstream device, the upstream device is a relay device or a first device of the first communication, the downstream device is a relay device or a second device of the first communication, the first device is one of a source terminal and a destination terminal of the first communication, the second device is the other of the source terminal and the destination terminal of the first communication, the first communication is sidelink relay communication, and the third information comprises at least one of the following:
• third configuration information, wherein the third configuration information is configuration information of the second target hop in the configuration information of the bearer;
• and
• fourth configuration information, wherein the fourth configuration information is configuration information of the third target hop in the configuration information of the bearer.

A first device, comprising a processor and a memory, wherein the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement steps of:

• obtaining first information, wherein the first information comprises configuration information for establishing a bearer of first communication;
• and
• establishing, with a second device, the bearer of the first communication based on the first information, and communicating with the second device,
• wherein the first device is one of a source terminal and a destination terminal of the first communication, the second device is the other of the source terminal and the destination terminal of the first communication, the first communication is sidelink relay communication, and the first information comprises at least one of the following:
• first configuration information, wherein the first configuration information is end-to-end configuration information in the configuration information of the bearer;
• and
• second configuration information, wherein the second configuration information is hop-by-hop configuration information corresponding to a first target hop between the first device and a third device in the configuration information of the bearer, and the third device is a relay device connected to the first device in the first communication.