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Mapping special subframes in a wireless communication network

  • US 9,503,892 B2
  • Filed: 09/17/2013
  • Issued: 11/22/2016
  • Est. Priority Date: 01/17/2013
  • Status: Active Grant
First Claim
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1. An apparatus to be employed by an evolved Node B (eNB), the apparatus comprising:

  • reference signal circuitry to generate demodulation reference signals (DM-RSs) to facilitate a user equipment (UE) to receive signals from the eNB;

    mapping circuitry to assign the DM-RSs to resource elements of a downlink pilot time slot (DwPTS) of a time-domain duplexing (TDD) special subframe based on a configuration of the TDD special subframe, wherein the configuration of the TDD special subframe is a special subframe configuration 0 with a normal cyclic prefix, a special subframe configuration 5 with a normal cyclic prefix, a special subframe configuration 0 with an extended cyclic prefix, a special subframe configuration 4 with an extended cyclic prefix, or a special sub-frame configuration 7 with an extended cyclic prefix; and

    transceiver circuitry to wirelessly transmit the DM-RSs to the UE using the assigned resource elements to facilitate the UE to receive a transmission from the eNB in the DwPTS;

    wherein the TDD special subframe is a first TDD special subframe that does not include a primary synchronization signal (PSS) or a secondary synchronization signal (SSS), and wherein the mapping circuitry is to assign one or more of the DM-RSs to resource elements in a third earliest time-domain symbol of the first TDD special subframe, and wherein the mapping circuitry is further to exclude the DM-RSs from a third earliest symbol of a second TDD special subframe that includes a PSS or an SSS..

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