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Method and apparatus for determining transport block size

  • US 10,447,425 B2
  • Filed: 10/28/2018
  • Issued: 10/15/2019
  • Est. Priority Date: 06/16/2017
  • Status: Active Grant
First Claim
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1. A method for determining a transport block size (TBS) of a data channel, comprising:

  • receiving, by a terminal device, control information from a network device, wherein the control information comprises modulation indication information and resource information of the data channel;

    determining, by the terminal device, a modulation order and a code rate according to a mapping relationship set and the modulation indication information, wherein the mapping relationship set comprises a correspondence between the modulation indication information and a combination of the modulation order and the code rate;

    determining, by the terminal device, number of time-frequency resources according to the resource information; and

    determining, by the terminal device, the TBS according to the modulation order, the code rate, and the number of the time-frequency resources;

    wherein, according to the determined TBS, the terminal device decodes the data channel carried on the time-frequency resources or sends the data channel on the time-frequency resources; and

    wherein determining the TBS according to the modulation order, the code rate, and the number of time-frequency resources comprises;

    determining, by the terminal device, an intermediate TBS according to the modulation order, the code rate, the number of time-frequency resources, and number of transport layers; and

    determining, by the terminal device, the TBS according to the intermediate TBS;

    wherein when the intermediate TBS is less than or equal to a reference threshold, the TBS is determined to be an element value in a value set.

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