| CPC H04W 74/0816 (2013.01) [H04W 74/0866 (2013.01)] | 20 Claims |

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1. A communication method, performed by a data transmitter, and comprising:
performing clear channel assessment (CCA) through an assessment beam, wherein the assessment beam is associated with at least one transmission beam for transmitting data;
wherein performing the CCA through the assessment beam comprises:
reducing coverage range of the assessment beam in a case where a CCA result of the assessment beam indicates that a channel is occupied, and performing the CCA on the assessment beam with the reduced coverage range;
transmitting the data through the at least one transmission beam associated with the assessment beam in response to the CCA result indicating that the assessment beam is unoccupied;
wherein time-domain positions of two time-domain adjacent transmission beams for transmitting the data are continuous, or an interval between the time-domain positions of the two time-domain adjacent transmission beams for transmitting the data is less than a predetermined time-domain interval, in response to separately transmitting the data through a plurality of transmission beams associated with the assessment beam; and wherein the predetermined time-domain interval causes an external device to not occupy the transmission beam within an interval of the plurality of transmission beams.
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