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Narrowband time-division duplex frame structure for narrowband communications

  • US 10,420,102 B2
  • Filed: 10/03/2017
  • Issued: 09/17/2019
  • Est. Priority Date: 02/15/2017
  • Status: Active Grant
First Claim
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1. A method of wireless communication for a base station, comprising:

  • determining whether to transmit a narrowband physical downlink channel in a subframe in a time-division duplex (TDD) frame structure of a plurality of TDD frame structures for narrowband communications including one or more special subframes, wherein determining whether to transmit a narrowband physical downlink channel includes;

    determining to transmit the narrowband physical downlink channel in the subframe, if the subframe is a downlink subframe; and

    determining to transmit the narrowband physical downlink channel in the subframe, if the subframe is a special subframe and a number of downlink orthogonal frequency division multiplexing (OFDM) symbols in the special subframe is greater than a predetermined threshold; and

    transmitting the narrowband physical downlink channel.

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