Samsung Electronics Co., Ltd.

Sanjay Kumar Kodali

Joseph R Cleveland

Purva R Rajkotia

William Joseph Semper

Nivedan Thadasina

John C Jubin

Jeyakesavan Veerasamy

An apparatus and method for efficient determination of mobile station location in a wireless network. A location register database is used by base station controllers to track the locations of mobile stations.

Apparatus and method for efficient determination of mobile station location in a wireless network

An apparatus and method for performing an interfrequency hard handoff at a border cell in a wireless network. The apparatus comprises a handoff controller within a source base station that selects an optimal target base station using location information of at least one target base station and using one of: a location of the wireless mobile station, a velocity of the wireless mobile station, and a direction of motion of the wireless mobile station. The present invention uses the location information of at least one target base station in order to make more reliable handoff decisions.

Apparatus and method for performing an interfrequency handoff in a wireless network

An apparatus and method is disclosed for selecting a handoff target base station in a wireless network. The apparatus comprises a handoff controller within a wireless mobile station that selects an optimal target base station for handoff based on pilot signal strength measurements of at least two candidate base stations and one of: a location of the wireless mobile station, a velocity of the wireless mobile station, and a direction of motion of the wireless mobile station. The present invention uses more than just pilot strength measurements to select an optimal target base station for handoff. Incorporating position location information in the handoff decision causes the handoff decision to be more reliable. This reduces the number of unnecessary handoffs and results in better system performance.

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Dallas, TX, United States of America

Sanjay Kumar Kodali