Evolution of RAN Architectures Toward 6G: Motivation, Development, and Enabling Technologies

被引：1
|
作者：
Chen, Jiacheng [1 ]
Liang, Xiaohu [2 ,3 ]
Xue, Jianzhe [4 ]
Sun, Yu [4 ]
Zhou, Haibo [4 ]
Shen, Xuemin
机构：
[1] Peng Cheng Lab, Dept Math & Theories, Shenzhen 518000, Peoples R China
[2] Army Engn Univ, Sch Commun Engn, Nanjing 210000, Peoples R China
[3] Southeast Univ, Sch Informat Sci & Engn, Nanjing 210000, Peoples R China
[4] Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210023, Peoples R China
来源：
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS | 2024年 / 26卷 / 03期
基金：
加拿大自然科学与工程研究理事会;
关键词：
6G mobile communication; 5G mobile communication; Computer architecture; Surveys; Microprocessors; Costs; Market research; 6G RAN; fully-decoupled RAN; C-RAN; cell-free network; space-air-ground integrated network; integrated sensing and communications; FREE MASSIVE MIMO; UPLINK PERFORMANCE IMPROVEMENT; MULTIFLOW CARRIER AGGREGATION; SPECTRAL EFFICIENCY ANALYSIS; GROUND INTEGRATED NETWORK; RADIO ACCESS NETWORKS; ULTRA-DENSE NETWORKS; CELL-FREE; RESOURCE-ALLOCATION; C-RAN;
D O I：
10.1109/COMST.2024.3388511
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this survey paper, we first provide insights on the evolution of radio access networks (RANs) through investigating the existing paradigms and future trends towards 6G. We then present the fully-decoupled RAN (FD-RAN), which aligns with the trends by integrating existing paradigms and introducing new features such as physical decoupling of uplink and downlink base stations. We also discuss the key technologies enabled by different architectures for further performance improvement and some open issues. We hope that this survey can stimulate more in-depth research on transforming 6G RAN so as to unleash the power of state-of-the-art technologies and meet higher performance requirements in the future.
引用
收藏
页码：1950 / 1988
页数：39
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