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Satellite Mobile Communication Method Combining Space-Time-Frequency Triple Reuse and Bandwidth Adaptive

A satellite mobile communication, triple reuse technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve the problem of not considering bandwidth adaptive adjustment and so on

Active Publication Date: 2021-09-10
军事科学院系统工程研究院网络信息研究所
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AI Technical Summary

Problems solved by technology

The above-mentioned patents can improve the user capacity of the satellite mobile communication system to a certain extent, but they only focus on single-dimensional multiplexing technologies such as frequency and space, and fail to multiplex satellite communication resources from multiple dimensions such as space-time-frequency. Adaptive Bandwidth Adjustment Considering Resource Constraints

Method used

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  • Satellite Mobile Communication Method Combining Space-Time-Frequency Triple Reuse and Bandwidth Adaptive
  • Satellite Mobile Communication Method Combining Space-Time-Frequency Triple Reuse and Bandwidth Adaptive
  • Satellite Mobile Communication Method Combining Space-Time-Frequency Triple Reuse and Bandwidth Adaptive

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Embodiment Construction

[0025] In order to better understand the contents of the present invention, an example is given here.

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the present invention describes a satellite mobile communication method combining space-time-frequency triple reuse and bandwidth self-adaptation, and the specific steps are as follows:

[0028] S1. According to the load weight, load power consumption and device technology level that the satellite can support, set the aperture of the spaceborne multi-beam antenna, the number of feed sources, and the size of the beamforming matrix, and then set the number of beams that can be formed by the entire satellite B 总 and the single-beam receiving gain and receiving noise equivalent temperature ratio G / T value, its G / T value is expressed as (G / T) 0 express;

[0029] S2. It is set that the system uses S kinds of modulation and coding comb...

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Abstract

The invention discloses a satellite mobile communication method combining space-time-frequency triple reuse and bandwidth self-adaptation. Calculate the sum of the maximum value of the receiving threshold and the link loss margin, and select the multiplexing factor value of the available frequency resources for multi-color multiplexing among multiple beams by comparing the received carrier-to-interference ratio with the sum; calculate the maximum value of the satellite user terminal Carrier rate and peak information rate, the number of time-division channels, and the number of basic carriers that can be supported by a single beam; adaptively adjust the transmission rate according to the channel quality level and service type; Basic carrier needs to be allocated. The invention effectively improves the utilization rate of system communication resources, can adapt to various information rates, multi-service communication performance and service quality requirements, and realizes comprehensive optimization of system capacity and throughput under resource constraints.

Description

technical field [0001] The invention relates to the technical field of satellite mobile communication, in particular to a satellite mobile communication method combining space-time-frequency triple reuse and bandwidth self-adaptation. Background technique [0002] Compared with the terrestrial mobile communication system, the satellite mobile communication system has the obvious advantages of wide coverage and no limitation of terrain conditions. It plays an irreplaceable role in the damage of ground communication infrastructure caused by disasters. Satellite mobile communication systems often use spaceborne large-aperture multi-beam antennas to improve the ability to receive signals sent by users, thereby reducing the antenna diameter of satellite users and enhancing the mobility of satellite users. However, in practical applications, the user capacity, communication performance, and service quality of the satellite mobile communication system are still subject to various ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04W24/02H04W28/02H04W28/18H04W84/06
CPCH04B7/18539H04B7/18569H04W24/02H04W28/0231H04W28/18H04W84/06
Inventor 何元智贾亦真
Owner 军事科学院系统工程研究院网络信息研究所
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