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US Patent Application 20090086714 - Apparatus and method for estimating uplink transmission timing in wireless communication system

Application 20090086714 Filed on September 18, 2008. Published on April 2, 2009

Inventors

Assignee

US Classes

370/350, Synchronization370/345, Combining or distributing information via time channels455/66.1Having diverse art device

Attorney, Agent or Firm

Foreign Documents

  • 2007-0097180 KR 09/27/2007

International Classes

H04J 3/06
H04B 7/00


Abstract text


An apparatus and method for estimating UpLink (UL) transmission timing in a Mobile Station (MS) of a wireless communication system are provided. The method includes tracking DL timing by using a DL preamble signal received for each frame; estimating a time offset between a previous frame and a current frame by using the DL timing tracked for each frame; and estimating the UL transmission timing by using the estimated time offset.

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