Terminal independent GEO satellite mobile communication system multi-beam switching method

A satellite mobile communication and multi-beam technology, which is applied in the field of satellite communication, can solve problems such as poor adaptability, high cross-beam complexity, and frequent signaling interaction, and achieve simple structure, simplified beam switching, and low complexity.

Active Publication Date: 2019-01-22
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

At present, most beam switching technologies require the system to perform complex mobility management, and the gateway station initiates route optimization and beam switching management to change channels and assi

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  • Terminal independent GEO satellite mobile communication system multi-beam switching method
  • Terminal independent GEO satellite mobile communication system multi-beam switching method

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] refer to Figure 1 to Figure 2 , the embodiment of the present invention provides a terminal autonomous GEO satellite mobile communication system multi-beam switching method, the method includes the following steps:

[0023] (1) The mobile terminal equipment is turned on and connected to the network, and through beam selection, its channel 1 and channel 2 both reside in the current beam with the highest signal strength and are in an idle standby state;

[0024] In the embodiment of the present invention, the mobile terminal adopts a dual-channel dual-SIM card design, and its dual transmissi...

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Abstract

The invention discloses a terminal independent GEO satellite mobile communication system multi-beam switching method, which mainly relates to a cross-beam switching technology in the satellite mobilecommunication field. A dual channel device is arranged in the mobile terminal; through reasonable software control, the dual-channel devices can reside in different beams in the beam overlapping area,and the communication data can be seamlessly switched between the two channels when the beams are crossed, thus realizing the continuity of communication and the integrity of data transmission in theprocess of high-speed mobile users frequently crossing the beams. A terminal dual channel is adopted, the design of autonomous handoff transmission channel, compared with the existing cross-beam switching method, it has the characteristics of no system switching control, flexible and autonomous user use, uninterrupted communication and user non-inductive beam switching, and is especially suitablefor the GEO multi-beam satellite system where the mobile user can move freely and keep the communication continuity.

Description

technical field [0001] The invention belongs to the field of satellite communication, and relates to a multi-beam switching method of a terminal-autonomous GEO satellite mobile communication system. The method can realize dual-channel sub-beam dwelling in the beam overlapping area and seamless switching between service data channels. The terminal autonomous and system-insensitive cross-beam switching is especially suitable for terminal cross-beam switching applications in satellite communication systems. Background technique [0002] In GEO (Geosynchronous Orbit) multi-beam satellite systems, highly dynamic mobile users (airborne, missiles, near-space platforms, etc.) are increasing. Due to the very fast movement speed, high-speed mobile users will frequently switch across beams during the movement process, so effective beam switching technology must be used to ensure the continuity of communication during the free movement of users. At present, most beam switching technolo...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/18H04B17/318H04B17/382H04B7/185
CPCH04B7/18519H04B17/318H04B17/382H04W36/0016H04W36/0088H04W36/18
Inventor 肖娜王力男张庆业周微
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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