U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and system for acquiring time synchronization between base stations in a broadband wireless access communication system

Patent 7436813 Issued on October 14, 2008. Estimated Expiration Date: Icon_subject August 16, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Distributed timing recovery for a distributed communication system
Patent #: 4939752
Issued on: 07/03/1990
Inventor: Literati, et al.

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Inventor: Matsuno

Method of establishing inter base-station synchronization and mobile radio communicaton system using the method
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Issued on: 03/18/1997
Inventor: Matsuno

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Patent #: 5699388
Issued on: 12/16/1997
Inventor: Wang, et al.

Method and apparatus for providing wireless communication system synchronization
Patent #: 6590881
Issued on: 07/08/2003
Inventor: Wallace, et al.

Method of synchronization of a base station network
Patent #: 6847826
Issued on: 01/25/2005
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Time acquisition in a wireless position determination system
Patent #: 6907224
Issued on: 06/14/2005
Inventor: Younis

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Inventors

Assignee

Application

No. 11204599 filed on 08/16/2005

US Classes:

370/350, Synchronization370/310, COMMUNICATION OVER FREE SPACE370/324, Synchronization370/503, Synchronizing455/502, Synchronized stations375/356Network synchronizing more than two stations

Examiners

Primary: Kincaid, Lester G.
Assistant: Mitchell, Tana

Attorney, Agent or Firm

Foreign Patent References

  • 11205849 JP 07/01/1999

International Classes

H04J 3/06
H04B 7/00
H04B 7/212
H04B 15/00
H04L 7/00

Abstract

Method and system by which a base station without a Global Positioning System (GPS) receiver acquires time synchronization in a Broadband Wireless Access (BWA) communication system. The method includes scanning neighbor base stations around a first base station and requesting time synchronization information from the scanned neighbor base stations by the first base station; receiving responses from predetermined neighbor base stations having already acquired time synchronization from among the neighbor base stations, the responses including time synchronization information of the predetermined neighbor base stations; and selecting a second base station from among the predetermined neighbor base stations and acquiring time synchronization based on the time synchronization information of the second base station.

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