InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,924,961
Dick , et al. April 12, 2011

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Base station synchronization


Abstract
A method, implemented in a user equipment (UE), of maintaining base station synchronization, comprises receiving a measurement message from a radio network controller (RNC) directing the UE to measure a time difference of arrival (TDOA) between signals transmitted from a first and second base station. The UE receives a transmission from the first and second base stations and measures the TDOA of the transmission from the first and second base station. The UE transmits the measurement of the TDOA of the transmission from the first base station to the first base station, and the measurement of the TDOA of the transmission from the second base station to the second base station.


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Inventors: Dick; Stephen G. (Nesconset, NY), Zeira; Eldad (Huntington, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 12/127,063
Filed: May 27, 2008

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
11257534 Oct., 2005 7379518
10075698 Dec., 2005 6980615
09826547 Nov., 2005 6961398
60223405 Aug., 2000
60195543 Apr., 2000


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Current U.S. Class: 375/356
Current International Class: H04L 7/00 (20060101)
Field of Search: 375/354,356

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