Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems

US20070123252A1Inactive Publication Date: 2007-05-31ATC TECH LLC
99 Cites 147 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ATC TECH LLC
Publication Date
2007-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

Apparatus, methods and computer program products that support inter-PLMN coordination in registration and handover operations are provided. Hysteresis is introduced in registration of radioterminals in a hybrid terrestrial / satellite mobile communications environment. Inter-PLMN handover techniques are provided, including techniques for coordination of communication of timing information and traffic channel controls.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the priority of U.S. Provisional Application Ser. No. 60 / 725,813; filed Oct. 12, 2005, incorporated by reference herein in its entirety.FIELD OF THE INVENTION

[0002] This invention relates to wireless communications systems and methods, and more particularly to hybrid satellite and terrestrial wireless communications systems and methods. BACKGROUND OF THE INVENTION

[0003] Satellite radiotelephone communications systems and methods are widely used for radiotelephone communications. Satellite radiotelephone communications systems and methods generally employ at least one space-based component, such as one or more satellites, that is / are configured to wirelessly communicate with a plurality of satellite radiotelephones.

[0004] A satellite radiotelephone communications system or method may utilize a single satellite antenna pattern (beam or cell) covering an entire service region served by the system. Alternatively, o...

Claims

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