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Frequency spectrum perception and frequency distribution method and apparatus

A technology of frequency allocation and spectrum sensing, applied in the field of communication, can solve problems such as frequency sharing and coordination difficulties, achieve the effect of improving the efficiency of spectrum resource use and solving frequency coordination difficulties

Active Publication Date: 2016-12-21
北京九天微星通信技术有限公司
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides spectrum sensing and frequency allocation methods and devices to at least solve the difficult problems of frequency sharing and coordination in the prior art

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  • Frequency spectrum perception and frequency distribution method and apparatus
  • Frequency spectrum perception and frequency distribution method and apparatus

Examples

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example 1

[0050] Example 1 Geostationary orbit satellite using spectrum sensing method

[0051] In addition to discovering unused frequencies in this sensing method, it is more important to sense and determine the frequencies used by each geostationary satellite in its service area in the selected frequency band.

[0052] Take 6 orbital planes and 10 satellites in each orbital plane in the low-orbit communication satellite constellation as an example:

[0053] 1) The communication satellites on orbital plane 1 are A, B, C, D, E, F, G, H, L, M in turn, when they scan the selected Ka frequency band, A, B, C, E , F, G, H, L, and M satellite antennas point to 50°, 40°, 30°, 20°, 10°, 0°, -10°, -20°, -30°, -40°.

[0054] 2) Each satellite on orbital plane 1 receives the signal in the beam at time interval t, and records time, position, signal strength and frequency information;

[0055] 3) Since the main lobe of the Ka satellite communication antenna pattern is very narrow, the signals re...

example 2

[0060] Example 2 Spectrum Sensing and Frequency Allocation Method for Ka User Link of LEO Satellite Constellation System

[0061] The Ka user link frequency allocation of LEO satellite constellation system includes the following methods:

[0062] 1) Divide the service area into several relatively fixed service areas according to the altitude of the non-geostationary orbit satellite, the number of beams on the satellite, the antenna aperture, the orbital parameters of the constellation system, and the reserved service objects;

[0063] 2) According to the frequency usage map of each geostationary satellite, it is possible to determine the unused idle frequencies in each service area of ​​the set low-orbit constellation system, and the service area can use these idle frequencies;

[0064] 3) In most cases, there is no idle frequency resource in the service area of ​​the set low-orbit constellation system, and the system will screen out the low-orbit satellites that work in the s...

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Abstract

The invention discloses a frequency spectrum perception and frequency distribution method and apparatus. The method comprises a step of scanning a Ka frequency band selected by a predetermined area through a low earth orbit satellite when the low earth orbit satellite in a low earth orbit constellation system flies over the predetermined area, a step of sending data information to a ground gateway station through the low earth orbit satellite, wherein the data information is obtained according to scanning by the low earth orbit satellite, a step of analyzing and drafting the frequency graph of global in-orbit stationary track Ka frequency range satellites, wherein the frequency graph is analyzed and drafted according to the received data information transmitted by multiple low earth orbit satellites, and a step of dividing the Ka frequency band service area of the low earth orbit constellation system into at least one service area, and distributing the use frequency of each service area according to the frequency graph. The problems of frequency sharing and difficult coordination in the prior art are solved, and the use efficiency of the frequency spectrum resource is improved.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to methods and devices for spectrum sensing and frequency allocation. Background technique [0002] In recent years, Ka-band communication satellites have developed rapidly. At present, there are more than 20 full-Ka-band broadband communication satellites in orbit around the world. In 2016, there will be about 50 global Ka-band commercial communication satellites. Most of these satellites are geostationary orbit satellites. Google and One Web plan to use the low-orbit satellite constellation system to provide Internet access services to underdeveloped areas of the world, and O3B has begun to build its own constellation system. [0003] According to Article 22.2 of the ITU Radio Regulations, in the fixed-satellite service, non-geostationary orbit satellite systems must not interfere with geostationary orbit satellites, nor can they apply for interference from geostationary...

Claims

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Application Information

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IPC IPC(8): H04B17/382
CPCH04B7/185
Inventor 侯瑞庭蒋伯峰
Owner 北京九天微星通信技术有限公司
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