A method of geolocation that is backward compatible and more accurate than the well-known Cell/Sector ID method is provided. The geolocation method provided comprises the steps of determining a set of candidate locations for the mobile-station based on a timing advance value associated with the mobile-station and determining a location of the mobile-station using the set of candidate locations and signal strength measurements associated with same cell-neighboring sectors or different cell-neighboring sectors.

 
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> Integrateable band filter using waveguide grating routers

> Method of informing mobile user terminals camped on a cell of a base station that a service is unavailable, a base station, and a network

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