Patent ID: 7844281
Filing Date: 2010-11-30
Classification: G01S,H04W

Abstract:
1. A system that facilitates locating a mobile station, comprising: a wireless communication network comprising one or more cell groups, the one or more cell groups respectively comprising at least one sparse cell and one or more non-sparse cells to which the at least one sparse cell is synchronized; a geolocation control system (GCS) that obtains timing information from at least one non-sparse cell in the wireless communication network in response to radio signal information transmitted by a mobile station from a sparse cell in the wireless communication network; and an offset table implemented by the GCS that contains information relating to timing offsets between respective cell groups in the wireless communication network and identities of cells that comprise the respective cell groups, the GCS determines a location of the mobile station based at least in part on the timing information obtained from the non-sparse cells and the information contained in the offset table.