Information transmission method, device, system and storage medium

An information transmission method, applied to a base station in a vehicle-to-everything (V2X) architecture, comprising:

• sending, by the base station, sidelink retransmission configuration information to a user equipment (UE) through a radio resource control (RRC) dedicated signaling;
• wherein
• the sidelink retransmission configuration information comprises:
• a sidelink retransmission manner, a sidelink logical channel or bearer identity, a sidelink feedback resource, and radio link control (RLC) retransmission configuration information;
• the sidelink feedback resource comprises:
• a resource indication for sending sidelink HARQ feedback,
• the RLC retransmission configuration information comprises RLC retransmission configuration information related to a transmission operation which comprises:
• a number of automatic repeat request (ARQ) continuous retransmissions or any combination of:
• a maximum number of ARQ retransmissions, an RLC acknowledged mode (AM) sequence number length, a polling retransmission timer, and a polling protocol data unit or a number of poll bytes.

A user equipment (UE), comprising:

• a communication interface, a memory, a processor and a bus;
• wherein the bus is configured to connect the communication interface, the processor and the memory for communication among the communication interface, the processor and the memory;
• the communication interface is configured to perform data transmission with an external network element;
• the memory is configured to store instructions and data;
• and
• the processor is configured to, when executing the instructions, implement:
• receiving sidelink retransmission configuration information from a base station through a radio resource control (RRC) dedicated signaling;
• and performing a sidelink feedback or a sidelink retransmission according to the sidelink retransmission configuration information;
• wherein the sidelink retransmission configuration information comprises:
• a sidelink retransmission manner, a sidelink logical channel or bearer identity, a sidelink feedback resource, and radio link control (RLC) retransmission configuration information;
• the sidelink feedback resource comprises:
• a resource indication for sending sidelink HARQ feedback;
• and
• the RLC retransmission configuration information comprises RLC retransmission configuration information related to a transmission operation which comprises:
• a number of automatic repeat request (ARQ) continuous retransmissions or any combination of:
• a maximum number of ARQ retransmissions, an RLC acknowledged mode (AM) sequence number length, a polling retransmission timer, a polling protocol data unit or a number of poll bytes.