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Method and device for transmitting synchronization signal for D2D (device to device) communication in wireless communication system

  • US 10,263,825 B2
  • Filed: 09/16/2014
  • Issued: 04/16/2019
  • Est. Priority Date: 02/05/2014
  • Status: Active Grant
First Claim
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1. A method of detecting a synchronization signal by a user equipment (UE) for device-to-device (D2D) communication in a wireless communication system, the method comprising;

  • detecting, by the UE, a first synchronization signal and a second synchronization signal in a specific subframe during a synchronization signal period set for the D2D communication,wherein the second synchronization signal is located at a start symbol or an end symbol of the specific subframe, andwherein, when the second synchronization signal is located at the start symbol of the specific subframe, the second synchronization signal is configured to be located at two contiguous symbols; and

    performing, by the UE, a channel estimation based on the second synchronization signal located at a symbol next to the start symbol,wherein the first synchronization signal is generated based on a first root index set among predefined root index sets,wherein the second synchronization signal is generated based on a second root index set among the predefined root index sets, andwherein the first root index set and the second root index set are configured by a different index.

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