面向手机直连的卫星移动通信系统架构与特性

doi:10.11959/j.issn.2096-8930.2023038

Abstract

Abstract:

The development and construction of mobile communication satellite systems for individual users worldwide have been ongoing for over thirty years, and the technological level and industrial scale of satellite mobile communication are constantly maturing.Under the trend of deep integration of satellite communication and ground communication systems, the new generation of mobile communication satellites that support mobile phone connection is a new direction for the development of satellite-ground convergence.This paper expounded the development prospect and driving force of satellite system supporting mobile phone connection, proposed the mobile communication satellite network architecture based on GSO satellite and LEO satellite constellation, and analyzed the network characteristics and satellite technical challenges introduced in the above architecture from the perspective of satellite.Finally, the network communication system and related key issues were discussed.

Key words: satellite-ground convergence, mobile communication satellite, mobile phone connection

CLC Number:

TP393

Dong CHEN, Qian ZHANG, Zhaotao QIN, Jincheng TONG. Architecture and Features of Mobile Communication Satellite System for Mobile Phone[J]. Space-Integrated-Ground Information Networks, 2023, 4(4): 11-18.

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References 26

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对比项		北斗（华为）	天通	Skyterra（Ligado）	Inmarsat（联发科）	Thuraya（eSAT Global）
网络体制标准	卫星通信体制	√	√			√
	3GPP NTN体制			√	√
	地面蜂窝网体制
手机终端	星地两套芯片	√	√			√
手机终端	星地一套芯片			√	√
星地通信频率	MSS频率	√	√	√	√	√
星地通信频率	地面频率

对比项		AST SpaceMobile	Lynk Global	全球星(苹果)	Iridium （高通）
网络标准体制	卫星通信体制			√	√
	3GPP NTN体制
	地面蜂窝网体制	√	√
手机终端	星地两套芯片			√	√
手机终端	星地一套芯片	√	√
星地通信频率	MSS频率			√	√
星地通信频率	地面频率	√	√

频段	使用频段
600 MHz	614～652 MHz，663～698 MHz
700 MHz	698～758 MHz，775～788 MHz，805～806 MHz
800 MHz	824～849 MHz，869～894 MHz
Broadband PCS	1 850～1 915 MHz，1 930～1 995 MHz
WCS	2 305～2 320 MHz，2 345～2 360 MHz

Architecture and Features of Mobile Communication Satellite System for Mobile Phone

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