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DETECTING UPLINK/DOWNLINK TIME-DIVISION DUPLEXED (TDD) FRAME CONFIGURATIONS TO SYNCHRONIZE TDD DOWNLINK AND UPLINK COMMUNICATIONS BETWEEN TDD COMMUNICATIONS EQUIPMENT

  • US 20160173265A1
  • Filed: 02/22/2016
  • Published: 06/16/2016
  • Est. Priority Date: 08/29/2013
  • Status: Active Application
First Claim
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1. A time-division duplexed (TDD) communications unit, comprising:

  • a TDD communications signal interface configured to receive a downlink TDD communications signal and an uplink TDD communications signal over a communications medium;

    an uplink transmitter circuit coupled to the TDD communications signal interface, the uplink transmitter circuit configured to transmit the uplink TDD communications signal over the communications medium during at least one uplink frame period of a TDD frame based on a received uplink transmission control signal;

    a downlink receiver circuit coupled to the TDD communications signal interface, the downlink receiver circuit configured to be deactivated to not sample the downlink TDD communications signal during at least one uplink frame period of the TDD frame based on a received downlink reception control signal; and

    a controller configured to;

    detect an uplink/downlink TDD frame configuration of the TDD frame;

    determine at least one uplink frame period in the TDD frame based on the detected uplink/downlink TDD frame configuration;

    generate the uplink transmission control signal based on the determined at least one uplink frame period in the TDD frame; and

    generate the downlink reception control signal based on the determined at least one uplink frame period in the TDD frame.

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