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Data transmission method and apparatus

  • US 10,218,559 B2
  • Filed: 02/08/2018
  • Issued: 02/26/2019
  • Est. Priority Date: 08/17/2012
  • Status: Active Grant
First Claim
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1. A data sending method, comprising:

  • encapsulating, by a terminal device, media access control (MAC) payloads, each corresponding to a different one of a plurality of receiving devices, in a MAC packet data unit (PDU), wherein the MAC PDU comprises a MAC header followed by the MAC payloads, the MAC header comprises a plurality of contiguous subheaders, each subheader in the plurality of subheaders corresponds to a different MAC payload in the MAC payloads, each subheader comprises a plurality of fields, a specific field of the plurality of fields carries identification information of a corresponding receiving device in the plurality of receiving devices, the MAC payloads comprise at least one kind of a MAC control element (CE) and a MAC service data unit (SDU) and do not comprise another MAC header, subheaders corresponding to a MAC CE have a different format than subheaders corresponding to a MAC SDU, the MAC payloads are contiguous without any intervening MAC header between adjacent MAC payloads, and the identification information of each receiving device is for identifying the corresponding receiving device; and

    sending, by the terminal device, the MAC PDU to the plurality of receiving devices to be parsed by the plurality of receiving devices according to the identification information of each receiving device and the MAC header.

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