Random Access Technology of NTN Network for Low Orbit Satellite

SONG Yanjun; SUN Chenhua; XIE Wenxuan; XU Jun; ZHANG Zhili; ZHANG Jing

doi:10.11959/j.issn.2096-8930.2024035

您当前的位置：

首页 >

文章列表页 >

Random Access Technology of NTN Network for Low Orbit Satellite

Special Issue: Satellite-terrestrial Integrated Network and Transmission Technology | 更新时间：2025-01-02

- Random Access Technology of NTN Network for Low Orbit Satellite
- Space-Integrated-Ground Information Networks Vol. 5, Issue 4, Pages: 17-24(2024)
- 作者机构：
  
  1.中国电子科技集团公司第五十四研究所，河北石家庄 050081
  2.电子科技大学，四川成都 611731
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2024035
  CLC： TN393
- Received：01 August 2024，
  
  Revised：2024-11-10，
  
  Published：20 December 2024
- 稿件说明：
移动端阅览
宋艳军,孙晨华,谢文轩等.面向低轨卫星的NTN随机接入技术[J].天地一体化信息网络,2024,05(04):17-24.

SONG Yanjun,SUN Chenhua,XIE Wenxuan,et al.Random Access Technology of NTN Network for Low Orbit Satellite[J].Space-Integrated-Ground Information Networks,2024,05(04):17-24.
宋艳军,孙晨华,谢文轩等.面向低轨卫星的NTN随机接入技术[J].天地一体化信息网络,2024,05(04):17-24. DOI： 10.11959/j.issn.2096-8930.2024035.

SONG Yanjun,SUN Chenhua,XIE Wenxuan,et al.Random Access Technology of NTN Network for Low Orbit Satellite[J].Space-Integrated-Ground Information Networks,2024,05(04):17-24. DOI： 10.11959/j.issn.2096-8930.2024035.

摘要

通过比较非地面网络（NTN）通信与地面5G通信在通信场景、接入架构、终端类型、传输特性等方面的差异，总结出低轨卫星NTN的随机接入应重点研究，并深入分析NTN随机接入面临的问题和关键技术的突破情况。针对高动态信号的多普勒频偏问题，提出简单、易实现的卫星波束指向感知的频偏补偿方法；面对低轨卫星接入波束控制难题，提出一种多点波束分区域覆盖的实时调度方法；同时为解决低轨NTN场景下的随机接入拥塞问题，提出利用强化学习方法设计接入类别禁止因子的新思路。

Abstract

By comparing the differences between NTN communication and ground-based 5G communication

this paper concluded that the random access of low-orbit satellite NTN should be studied. The problems and key technologies of NTN random access were deeply analyzed. A simple and easy to implement frequency offset compensation method for satellite beam-pointing sensing was proposed to solve the Doppler frequency offset problem of high dynamic signals. A real-time scheduling method of multi-point beam sub-region coverage was proposed to solve the problem of beam control for low orbit satellite access. A new idea of using reinforcement learning method to design access class barring factors was proposed to solve the random access congestion problem in low orbit NTN scenario.

关键词

Keywords

references

3GPP. Study on New Radio (NR) to support non-terrestrial networks, V15.4.0: TR 38.811 [S ] . 2020 .

宋艳军 , 肖永伟 , 孙晨华 . 手机直连卫星关键技术分析与发展展望 [J ] . 电信科学 , 2024 , 40 ( 4 ): 1 - 9 .

SONG Y J , XIAO Y W , SUN C H . Analysis and future development of direct-to-handset satellite key technologies [J ] . Telecommunications Science , 2024 , 40 ( 4 ): 1 - 9 .

孙耀华 , 彭木根 . 面向手机直连的低轨卫星通信: 关键技术、发展现状与未来展望 [J ] . 电信科学 , 2023 , 39 ( 2 ): 25 - 36 .

SUN Y H , PENG M G . Low earth orbit satellite communication supporting direct connection with mobile phones: key technologies, recent progress and future directions [J ] . Telecommunications Science , 2023 , 39 ( 2 ): 25 - 36 .

孙耀华 , 许宏涛 , 彭木根 . 手机直连低轨卫星通信: 架构、关键技术和未来展望 [J ] . 移动通信 , 2024 , 48 ( 1 ): 103 - 110 .

SUN Y H , XU H T , PENG M G . Direct-to-mobile low earth orbit satellite communication: architecture, key technologies, and future perspective [J ] . Mobile Communications , 2024 , 48 ( 1 ): 103 - 110 .

LI C M , SHU Y L , WANG P J . Synchronization for LTE-A system downlink [J ] . IEEE Consumer Electronics Magazine , 2019 , 8 ( 3 ): 40 - 43 .

JUNG Y A , KIM M Y , SONG H K , et al . Effective estimation of integer carrier frequency offset in LTE downlink systems with symbol timing error [J ] . IEEE Access , 2019 , 7 : 33329 - 33337 .

李勇 , 韩博文 , 袁冰凡 , 等 . 5G NR下行同步方法研究 [J ] . 现代电子技术 , 2023 , 46 ( 13 ): 12 - 18 .

LI Y , HAN B W , YUAN B F , et al . Research on 5G NR downlink synchronization method [J ] . Modern Electronics Technique , 2023 , 46 ( 13 ): 12 - 18 .

朱剑锋 , 孙耀华 , 彭木根 . 低轨卫星通信系统的前导序列设计 [J ] . 北京邮电大学学报 , 2022 , 45 ( 6 ): 75 - 81 .

ZHU J F , SUN Y H , PENG M G . Preamble design for low earth orbit communication systems [J ] . Journal of Beijing University of Posts and Telecommunications , 2022 , 45 ( 6 ): 75 - 81 .

ZHU J F , SUN Y H , PENG M G . Timing advance estimation in low earth orbit satellite networks [J ] . IEEE Transactions on Vehicular Technology , 2024 , 73 ( 3 ): 4366 - 4382 .

廖学富 , 席兵 , 邓炳光 . 5G高速场景下随机接入前导设计和检测 [J ] . 电讯技术 , 2023 , 63 ( 3 ): 416 - 420 .

LIAO X F , XI B , DENG B G . Design and detection of random access preamble in 5G high-speed scenario [J ] . Telecommunication Engineering , 2023 , 63 ( 3 ): 416 - 420 .

D’AMICO A A , MORELLI M , MORETTI M . A novel scheme for CP-length detection and initial synchronization for the LTE downlink [J ] . IEEE Transactions on Wireless Communications , 2019 , 18 ( 10 ): 4668 - 4678 .

ZHEN L , SUN T , LU G Y , et al . Preamble design and detection for 5G enabled satellite random access [J ] . IEEE Access , 2020 , 8 : 49873 - 49884 .

LIN G Y , CHANG S R , WEI H Y . Estimation and adaptation for bursty LTE random access [J ] . IEEE Transactions on Vehicular Technology , 2016 , 65 ( 4 ): 2560 - 2577 .

KIM E , LEE H . Low-latency random access in wireless networks [J ] . ICT Express , 2021 , 7 ( 1 ): 41 - 48 .

雷菁 , 王水琴 , 黄巍 , 等 . 稀疏码多址接入多用户检测算法综述 [J ] . 电子与信息学报 , 2021 , 43 ( 10 ): 2757 - 2770 .

LEI J , WANG S Q , HUANG W , et al . Survey of multi-user detection algorithms for sparse code multiple access system [J ] . Journal of Electronics & Information Technology , 2021 , 43 ( 10 ): 2757 - 2770 .

YUAN S , SUN Y H , PENG M G , et al . Joint beam direction control and radio resource allocation in dynamic multi-beam LEO satellite networks [J ] . IEEE Transactions on Vehicular Technology , 2024 , 73 ( 6 ): 8222 - 8237 .

张嘉怡 , 余忠洋 , 朱敏 , 等 . 低轨卫星通信中SCMA系统载波同步算法设计 [J ] . 系统工程与电子技术 , 2021 , 43 ( 5 ): 1354 - 1360 .

ZHANG J Y , YU Z Y , ZHU M , et al . Design of carrier synchronization algorithm for SCMA system in LEO satellite communication [J ] . Systems Engineering and Electronics , 2021 , 43 ( 5 ): 1354 - 1360 .

GUIDOTTI A . Beam size design for new radio communications satellite communications systems [J ] . IEEE Transactions on Vehicular Technology , 2019 , 68 ( 11 ): 11379 - 11383 .

TELLO-OQUENDO L , PACHECO-PARAMO D , PLA V , et al . Reinforcement learning-based ACB in LTE-a networks for handling massive M2M and H2H communications [C ] // Proceedings of the 2018 IEEE International Conference on Communications (ICC) . Piscataway : IEEE Press , 2018 : 1 - 7 .

MOON J , LIM Y . Access control of MTC devices using reinforcement learning approach [C ] // Proceedings of the 2017 International Conference on Information Networking (ICOIN) . Piscataway : IEEE Press , 2017 : 641 - 643 .

PACHECO-PARAMO D , TELLO-OQUENDO L . Adjustable access control mechanism in cellular MTC networks: a double Q-learning approach [C ] // Proceedings of the 2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) . Piscataway : IEEE Press , 2019 .

DI C , ZHANG B , LIANG Q L , et al . Learning automata-based access class barring scheme for massive random access in machine-to-machine communications [J ] . IEEE Internet of Things Journal , 2019 , 6 ( 4 ): 6007 - 6017 .

BUI A T H , PHAM A T . Deep reinforcement learning-based access class barring for energy-efficient mMTC random access in LTE networks [J ] . IEEE Access , 2020 , 8 : 227657 - 227666 .

ZHANG H J , JIANG M H , LIU X N , et al . PPO-based PDACB traffic control scheme for massive IoV communications [J ] . IEEE Transactions on Intelligent Transportation Systems , 2023 , 24 ( 1 ): 1116 - 1125 .

JIANG N , DENG Y S , NALLANATHAN A . Deep reinforcement learning for discrete and continuous massive access control optimization [C ] // Proceedings of the 2020 - 2020 IEEE International Conference on Communications . Piscataway : IEEE Press , 2020 : 1 - 7 .

BAI J N , SONG H , YI Y , et al . Multiagent reinforcement learning meets random access in massive cellular Internet of Things [J ] . IEEE Internet of Things Journal , 2021 , 8 ( 24 ): 17417 - 17428 .

ZHANG C W , SUN X H , XIA W C , et al . Distributive ACB factor estimation for delay-sensitive applications in non-terrestrial networks [C ] // Proceedings of the 2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) . Piscataway : IEEE Press , 2022 : 1 - 6 .

FENG T , NIE G F , TIAN H , et al . Dynamic access control for LEO satellite networks based on reinforcement learning [C ] // Proceedings of the 2023 9th International Conference on Computer and Communications (ICCC) . Piscataway : IEEE Press , 2023 : 344 - 349 .

Views

606

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

New Approach of Integration Space-Ground: Hotspots, Challenges, and Key Technologies of Direct-to-Smartphone

Research on Random Access of Satellite Internet of Things Based on Load Prediction

Research on the NB-IoT Random Access in LEO Satellite IoT

Research on Random Access Technology of Inter-Frame Interference Cancellation for 6G Satellite Internet of Things

Related Author

Yuanzhi HE

Lingcai YANG

Yongwei XIAO

Shijie ZHANG

Zhiqiang LI

Yun LIU

Xiwen MAO

Haitao WANG

Related Institution

Institute of Systems Engineering, Academy of Military Sciences

China Telecom Satellite Communications Co., Ltd., Satellite Communication Branch

The 54th Research Institute of China Electronics Technology Group Corporation

Yinhe Hangtian (Beijing) Internet Technology Co., Ltd.

School of Information Science and Engineering, Southeast University

⁰