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User equipment for synchronizing to a TDD base station

  • US 20060280136A1
  • Filed: 08/17/2006
  • Published: 12/14/2006
  • Est. Priority Date: 05/22/2000
  • Status: Active Grant
First Claim
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1. A time division duplex (TDD) user equipment (UE) configured to synchronize to a TDD base station, the UE comprising:

  • a receiver configured to receive a primary synchronization code along with a plurality of secondary synchronization codes from a TDD base station, the TDD base station associated with having a code group out of N code groups, the plurality of secondary synchronization codes numbering less than (log2N)+1 and the secondary synchronization codes being quadrature phase shift keying modulated; and

    a corresponding matched filter to each of the received secondary synchronization codes; and

    wherein the UE is configured to identify the code group of the TDD base station by the received plurality of secondary synchronization.

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