Information transmission method and device, and storage medium

1. An information transmission method, comprising:

performing, by a device, a channel access procedure comprising one of the following:

in a case where transmission is transmitted in different beams, performing, by the device, the channel access procedure using a Category 3, Cat3, Listen Before Talk, LBT, mechanism in the different beams independently before the transmission is transmitted; or

in a case where transmission is transmitted in different beams within a Channel Occupancy Time, COT, performing, by the device, the channel access procedure using a Cat2 LBT mechanism before switching to a different beam within the COT; and

in response to a result of the channel access procedure, performing, by the device, a transmission in one or more beams.

2. The method of claim 1 , wherein transmission is transmitted in different beams, and the channel access procedure is performed using the Cat3 LBT mechanism in the different beams independently before the transmission is transmitted, the method comprises:

in response to detecting that a channel is busy, abandoning, by the device, performing the transmission on a current resource; or

in response to detecting that a channel is busy, continuing, by the device, the channel access procedure according to at least one of a previous LBT mode or a previous LBT mechanism before a next candidate transmission start position; or

in response to detecting that a channel is busy, changing, by the device, a beam direction in which the LBT mechanism is performed, and retrying the channel access procedure; or

in response to detecting that a channel is busy, performing, by the device in the plurality of beam directions, the channel access procedure using a simplified LBT mechanism of a previous LBT mechanism or using a fast LBT mechanism before a next candidate transmission start position.

3. The method of claim 1 , wherein performing, by the device, the transmission in one or more beams comprises:

performing, by the device, the transmission in a plurality of beams;

performing, by the device, the transmission on a current resource in a beam containing a beam corresponding to at least one of subsequent resources; or

performing, by the device, the transmission simultaneously in a plurality of beams, wherein a number of the plurality of beams has a decreasing trend as a resource index increases.

4. The method of claim 1 , wherein in a case where transmission is transmitted in different beams within the COT, and the channel access procedure is performed using a Cat2 LBT mechanism before switching to a different beam within the COT, the performing, by the device, a transmission in one or more beams, comprises:

in response to detecting that a channel is clear using the Cat2 LBT mechanism, performing, by the device, the transmission in one or more beams within the COT; or

wherein in a case where transmission is transmitted in different beams, and the channel access procedure is performed using the Cat3 LBT mechanism in the different beams independently before the transmission is transmitted, the performing, by the device, a transmission in one or more beams, comprises:

in response to a beam direction in which a channel is detected to be clear, performing, by the device, transmission in the beam in which the channel is detected to be clear.

5. The method of claim 1 , wherein within the COT, the channel access procedure is performed according to at least one of:

in a case where a gap between a downlink transmission and a previous uplink transmission or a gap between an uplink transmission and a previous downlink transmission is less than or equal to a first threshold, not performing, by the device, an LBT mechanism or the channel access procedure; or

in a case where a gap between a downlink transmission and a previous uplink transmission or a gap between an uplink transmission and a previous downlink transmission is greater than a second threshold, performing, by the device, the Cat2 LBT mechanism or performing the Cat2 LBT mechanism for M times.

6. The method of claim 1 or 4 , wherein a duration for performing the channel access procedure using the Cat2 LBT mechanism is 16 μs or 25 μs.

7. An information transmission device, comprising a memory, a processor, and a computer program stored on the memory and executable by the processor, wherein the processor performs the information transmission method of claim 1 when executing the computer program.

8. A non-transitory computer-readable storage medium, which is configured to store a computer program, wherein the computer program, when executed, implements the information transmission method of claim 1 .