天地一体化信息网络 ›› 2021, Vol. 2 ›› Issue (4): 19-26.doi: 10.11959/j.issn.2096-8930.2021039
所属专题: 专题:面向6G的天地一体化信息网络
张晓凯, 郭道省, 张邦宁
修回日期:
2021-11-06
出版日期:
2021-12-20
发布日期:
2021-12-01
作者简介:
张晓凯(1992-),男,陆军工程大学讲师,主要研究方向为空天地一体化网络、卫星通信、非正交多址接入、信号极化特性等基金资助:
Xiaokai ZHANG, Daoxing GUO, Bangning ZHANG
Revised:
2021-11-06
Online:
2021-12-20
Published:
2021-12-01
Supported by:
摘要:
为了实现全时全域“泛在连接”,全球覆盖、随遇接入、按需服务的空天地一体化网络,是未来无线通信系统发展的方向。建设空天地一体化网络,需要深度结合天基网络、空基网络、地基网络,在不同的空间维度上发挥自身的功能,不断突破网络体制的边界限制,进而实现广域的全覆盖和无线网络的互联互通。文中主要从科研项目实施、技术研究和标准推进等方面探讨空天地一体化网络发展进程。同时,对新技术在空天地一体化网络中的应用进行展望,并探讨未来空天地一体化网络的发展方向。
中图分类号:
张晓凯, 郭道省, 张邦宁. 空天地一体化网络研究现状与新技术的应用展望[J]. 天地一体化信息网络, 2021, 2(4): 19-26.
Xiaokai ZHANG, Daoxing GUO, Bangning ZHANG. Research Status of Space-air-ground Integrated Network and Application Prospects of New Technologies[J]. Space-Integrated-Ground Information Networks, 2021, 2(4): 19-26.
表1
空天地一体化网络标准化进程(部分)"
组织 | 标准号 | 研究内容 |
3GPP TR 38.913[ | 开发下一代接入技术的部署场景和需求,将卫星网络作为地基网络扩展的场景 | |
3GPP TS 22.261[ | 卫星接入技术被纳入5G网络的基本接入技术之一 | |
3GPP | 3GPP TR 22.891[ | 在使用卫星进行 5G 网络连接的场景下,指出当前地基网络技术需要进一步提升以实现全球无缝覆盖、时延不超过275 ms的空中接口以及地面与卫星网络之间的无缝切换 |
3GPP TR 23.799[ | 卫星集成到5G 网络架构中,可实现高效的路径重选,并以最小的服务中断支持服务的连续性 | |
3GPP TR 38.811[ | 支持NTN的新无线研究项目,研究考虑并比较了卫星网络、空中接入网以及地面蜂窝网络的架构原理和信道模型差异 | |
3GPP TR 22.822[ | 在5G卫星网络的架构下确定了未来以及现有的服务在设置、配置和维护方面的需求以及卫星和地基网络之间切换的监管问题 | |
ETSI TR 103 124[ | 卫星网络和地基网络场景的定义和分类 | |
ETSI TR 103 263[ | 将CR技术在遵守规定的前提下引入卫星通信,并强调了在Ka频段的使用场景 | |
ETSI | ETSI TR 103 293[ | 卫星网络作为回程链路,解决了无线接入网中的流量分配问题 |
ETSI TR 103 351[ | 提出卫星和地基网络融合的典型场景 | |
ETSI TS 102 357[ | 提出利用卫星构建独立服务接入点,并规范了物理空中接口 | |
DVB | DVB-S2X[ | 将卫星视为向地面提供数字电视和 IP 服务的广播者 |
CCSDS | CCSDS标准体系[ | 根据空间通信特点制定的空间卫星通信协议标准 |
ECPTA | ECC report 280[ | 提出5G集成网络中基于卫星的几种典型用例 |
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