您所在的位置：首頁 >
通信与网络 >
设计应用 >
3GPP NR NTN接入网最新技术进展和发展趋势
3GPP NR NTN接入网最新技术进展和发展趋势
电子技术应用
王心怡1，2，马东俊1，3，张少伟1，和梦敏1，池佃婷1，齐岽清1，王高健1，朱雪田1，李红艳3
1.中国星网网络创新研究院有限公司；2.北京邮电大学 信息与通信工程学院；3.西安电子科技大学
摘要： 为满足全球无缝覆盖、应急通信、物联网与航空海事等新兴业务需求，3GPP R19阶段对NTN进行了系统性增强。相比R18以透明转发为主的架构，3GPP R19 NR NTN首次引入星上再生处理架构，实现接入网与核心网功能在卫星上的灵活部署，显著降低端到端时延并提升系统容量，并对R18多个方面进行了增强和扩展，使得5G 技术方案更加完整，技术能力进一步增强，为5G NR NTN 商用提供了坚实的技术基础。以当前6G卫星互联网发展中面临的挑战作为出发点，重点围绕R19 NR NTN 核心架构、空口与性能优化、移动性与服务连续性、终端与场景扩展等方面展开分析，最后对R20的技术发展进行了展望。
中圖分類號：TN929.5 文獻標志碼：A DOI: 10.16157/j.issn.0258-7998.257674 中文引用格式： 王心怡，馬東俊，張少偉，等. 3GPP NR NTN接入網(wǎng)最新技術(shù)進展和發(fā)展趨勢[J]. 電子技術(shù)應(yīng)用，2026，52(3)：1-7. 英文引用格式： Wang Xinyi，Ma Dongjun，Zhang Shaowei，et al. The latest progress and future trends of the technologies used by RAN for 3GPP NR NTN[J]. Application of Electronic Technique，2026，52(3)：1-7.
The latest progress and future trends of the technologies used by RAN for 3GPP NR NTN
Wang Xinyi1，2，Ma Dongjun1，3，Zhang Shaowei1，He Mengmin1，Chi Dianting1，Qi Dongqing1，Wang Gaojian1，Zhu Xuetian1，Li Hongyan3
1.China Satellite Network Innovation Co.， Ltd.；2.School of Information and Communication Engineering， Beijing University of Posts and Telecommunications；3.Xidian University
Abstract： To meet the demands of emerging services such as global seamless coverage, emergency communications, IoT, and aviation and maritime applications, 3GPP Release 19 has systematically enhanced NTN. Compared to the transparent forwarding-dominated architecture in Release 18, 3GPP R19 NR NTN introduced a novel onboard regeneration processing architecture for the first time, enabling flexible deployment of RAN and core network functions on satellites. This significantly reduces end-to-end latency and enhances system capacity. The 3GPP R19 NR NTN access network standard has been enhanced and expanded in multiple aspects compared to Release 18, making the 6G technical solution more comprehensive and further strengthening its capabilities, thereby providing a solid technical foundation for the commercialization of 5G NR NTN. This paper takes the challenges faced in the current development of 6G satellite Internet as the starting point and focuses on analyzing aspects such as the core architecture of R19 NR NTN, air interface and performance optimization, mobility and service continuity, terminal and scenario expansion, etc. Finally, the technological development of R20 was prospected.
Key words : 3GPP NR NTN；core architecture；air interface and performance optimization；mobility and service continuity
引言
隨著全球數(shù)字化轉(zhuǎn)型的加速，構(gòu)建空天地一體化的泛在通信網(wǎng)絡(luò)已成為第六代移動通信（6th Generation Mobile Networks, 6G）的核心愿景。目前，負責定制6G通信標準的國際組織3GPP圍繞新空口非地面網(wǎng)絡(luò)（New Radio Non Network，NR NTN）技術(shù)已經(jīng)完成了R15~R18 4個重要版本。其中，R15和R16聚焦部署場景、信道模型與系統(tǒng)參數(shù)等基礎(chǔ)參數(shù)和技術(shù)方案研究；R17完成首個NR NTN基線標準制定；R18在R17基礎(chǔ)上聚焦性能、頻段、窄帶物聯(lián)網(wǎng)、定位與回傳等方面進行增強；R19重點聚焦星上再生標準制定，并持續(xù)強化窄帶物聯(lián)網(wǎng)、覆蓋能力以及定位與新場景等功能，預(yù)計將于2026年年初凍結(jié)。
