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METHODS AND APPARATUS TO ALLOCATE REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEMS

  • US 20070253465A1
  • Filed: 04/27/2007
  • Published: 11/01/2007
  • Est. Priority Date: 04/27/2006
  • Status: Active Grant
First Claim
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1. A method comprising:

  • applying a first cyclic shift to a first reference sequence during a first time interval; and

    applying a second cyclic shift to a second reference sequence during a second time interval, wherein the first and second cyclic shifts are members of a set of cyclic shifts assigned to devices of a wireless region.

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