Communication method and communication apparatus

Abstract

series protocol, and may be further applied to a UWB-based wireless personal area network system and a sensing system. In the method, when the first station detects interaction of the OBSS station about the unavailable information, the first station may enable the NPCA based on the PPDU length. To be specific, when detecting a PPDU that meets a condition for triggering the NPCA, the first station switches from the primary channel to the NPCA primary channel, and switches back to the primary channel based on an end moment of the PPDU. In this way, the first station can switch back to the primary channel in time to perform channel contention, thereby avoiding a waste of transmission resources of the primary channel.

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