Communication method and apparatus

Abstract

A communication method and apparatus are provided, and relate to the field of communication technologies, to support a radio frequency identification RFID system in segmenting data based on a segmentation mechanism, simplify the segmentation mechanism, and reduce segmentation overheads. The method may be applied to the RFID system. A first protocol layer of a terminal device obtains first information that indicates a transport block size. If a size of a first data packet is greater than the transport block size, the first protocol layer segments the first data packet based on the transport block size, to obtain a plurality of first segmented data packets, and sends the plurality of first segmented data packets. The first data packet is a data packet received by the first protocol layer from a previous protocol layer. A size of the first segmented data packet is less than or equal to the transport block size.

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