Invention Grant
- Patent Title: Method and apparatus for providing a pilot beacon on behalf of one or more base stations
- Patent Title (中): 代表一个或多个基站提供导频信标的方法和装置
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Application No.: US12266180Application Date: 2008-11-06
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Publication No.: US08135403B1Publication Date: 2012-03-13
- Inventor: Dae-Sik Oh , Michael C. DeLaet , Robert C. Pippert
- Applicant: Dae-Sik Oh , Michael C. DeLaet , Robert C. Pippert
- Applicant Address: US KS Overland Park
- Assignee: Sprint Spectrum L.P.
- Current Assignee: Sprint Spectrum L.P.
- Current Assignee Address: US KS Overland Park
- Main IPC: H04W60/00
- IPC: H04W60/00

Abstract:
Disclosed herein is a method and apparatus for providing a pilot-beacon on behalf of one or more base stations, such as one or more femtocells. A pilot-beacon transmitter, separate from the base stations, determines the locations of coverage areas of the base stations and then dynamically configures a pilot-beacon radiation pattern to encompass (approximately) the determined coverage areas. That way, a mobile station may detect the pilot beacon and initiate scanning of coverage provided by the base stations. Optimally, the method can be used to provide a pilot beacon for femtocells, thereby avoiding the need for the femtocells to include pilot beacon transmission functions and thus possibly decreasing the cost of the femtocells. The pilot-beacon transmitter or another entity may also be configured to receive and forward GPS signals to the base stations, possibly offsetting GPS timing based on measured delays for communication with the base stations.
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