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Position information assisted satellite channel allocation method

A satellite channel and allocation method technology, applied in the field of satellite channel allocation, can solve problems such as less consideration of location characteristics, and achieve the effects of optimizing adaptability, improving system performance, and reducing overhead

Active Publication Date: 2015-04-22
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Location characteristics are important information in satellite communications, and current channel allocation strategies rarely consider assisting channel allocation according to location characteristics

Method used

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  • Position information assisted satellite channel allocation method
  • Position information assisted satellite channel allocation method
  • Position information assisted satellite channel allocation method

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Embodiment Construction

[0024] The channel allocation method provided by the present invention optimizes the adaptability of channels on different ground locations, improves system performance, and reduces the overhead of frequent channel switching, wherein the estimation of the matching degree between satellite channels and locations needs to use different channels at different locations The matching degree is estimated by the method of parameter estimation; the channel allocation strategy uses the estimated value of the matching degree between the channel and the position, and allocates the channel among the beams according to the criterion of maximizing the matching degree between the entire satellite channel and position; When assigning a channel to a terminal at a certain position in a certain beam, select the channel that best matches the position of the terminal among the available channels.

[0025] Geostationary orbit satellites cover the ground as figure 1 As shown, the satellite covers the...

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Abstract

The invention discloses a position information assisted satellite channel allocation method. Through using the adapted situations of different channels at different positions, the distribution of channels between wave beams can achieve the best channel-configuration matched effect; and in the process of carrying out distribution for a user at some position in some wave beam, a channel which is optimally matched with the position is selected so as to obtain a good channel characteristic and reduce the probability of channel switching. According to the method disclosed by the invention, the channel-position matching characteristics are fully used, so that the performance of a whole system can be improved, and the cost for frequent switching of the system is reduced.

Description

technical field [0001] The invention relates to a position information-assisted satellite channel allocation method, which enables channel allocation to be allocated according to specific channel adaptation conditions in different geographic locations, thereby achieving the purpose of effectively allocating satellite channels, and belongs to the technical field of wireless resource allocation. Background technique [0002] At present, the satellite channel allocation method is to select channels sequentially or randomly from the available channels, and then switch to other available channels when the channel quality drops to a certain level. Channels are accessed sequentially or randomly. This allocation method does not distinguish between all channels, and all channels have an equal selection probability in the area covered by the satellite beam. [0003] Geostationary orbit satellites have high orbital altitudes, large link path loss, and low signal strength. In this cas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W84/06
Inventor 刘宇邹光南杨博陈昕王海涛
Owner SPACE STAR TECH CO LTD