Periodic location update method of satellite mobile communication network, system and mobile terminal

A satellite mobile communication and mobile terminal technology, applied in the field of satellite communication, can solve the problems of low paging efficiency and occupation of network resources, and achieve the effect of improving the success rate of paging and reducing waste of resources

Inactive Publication Date: 2010-03-17
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

[0005] In the GEO satellite mobile communication system, wireless signal coverage has new characteristics. The periodic location update method in the existing terrestrial mobile communication

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  • Periodic location update method of satellite mobile communication network, system and mobile terminal
  • Periodic location update method of satellite mobile communication network, system and mobile terminal
  • Periodic location update method of satellite mobile communication network, system and mobile terminal

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[0020] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0021] In the GEO satellite mobile communication system, wireless signal coverage has the following new features:

[0022] Feature 1: Under the coverage of GEO satellites, the signal coverage characteristics of different types of areas are different from those of the ground network. GEO satellites operate in a circular orbit 36,000 km above the ground in the equatorial plane. For ground mobile terminals, the GEO satellite signals received by them will be affected by ground shadows. For areas with more ground shelters, GEO satellite signal shadow fading is more obvious, and the signal quality received by mobile terminals is poor. In the terrestrial mobile communication system, the wireless signal coverage in the city is the best, so the timer duration of the periodic location update can be longer t...

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Abstract

The invention discloses a periodic location update method of satellite mobile communication network, a satellite mobile communication system and a mobile terminal. The method includes the step of according to the location information of the mobile terminal, determining the duration of the periodic location update of the mobile terminal, wherein the mobile terminal takes the duration of the periodic location update as a period to initiate location update. The invention discloses the periodic location update method of the satellite mobile communication network, the satellite mobile communication system and the mobile terminal. The method, the system and the mobile terminal can adaptively determine the duration of a periodic location update timer according to the location position of the mobile terminal, thus saving resources, improving paging efficiency and having good adaptability.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a method for periodic position update in a satellite mobile communication network, a satellite mobile communication system and a mobile terminal. Background technique [0002] Future mobile communication systems need to support high-speed transmission under high mobility and have wider service coverage. This requires not only the adoption of advanced transmission technologies, but also the support of new network architectures. In the future mobile communication system, GEO (Geostationary) satellites can provide wider coverage and will be a powerful supplement to the ground mobile network. Compared with terrestrial mobile communication networks, GEO satellites are more suitable for providing stable wide-area communication coverage. GEO satellites can cover places that cannot be reached by ground networks such as sea areas, airspace, and remote areas with complex t...

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Application Information

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IPC IPC(8): H04W64/00H04W88/02
Inventor 王莹张平郑磊袁俊刘芳曹光宇张珂
Owner BEIJING UNIV OF POSTS & TELECOMM
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