Radio interface protocols and radio resource management procedures for 5G new radio non-terrestrial networks

被引：1
|
作者：
Maattanen, Helka-Liina [1 ]
Sedin, Jonas [2 ]
Parolari, Sergio [3 ]
Karlsson, Robert S. [2 ]
机构：
[1] Ericsson Res, Hirsalantie 11, Jorvas 02420, Kirkkonummi, Finland
[2] Ericsson AB, Stockholm, Sweden
[3] ZTE Italia Srl, Milan, Italy
来源：
INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS AND NETWORKING | 2023年 / 41卷 / 03期
关键词：
3GPP Release 17; 5G; NR; NTN; protocol aspects; RAN2; satellite communications;
D O I：
10.1002/sat.1469
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
In Release 17, 3GPP introduced adaptations and enhancements to the 5G new radio (NR) specification to support non-terrestrial networks (NTNs) operation. The main challenges were due to long propagation delays, especially in GEO deployments, and the movement of the satellites in LEO deployments. In this paper, we give an overview of the protocol adaptations to support NTNs. The main user plane protocol adaptations include changes to random access and hybrid automatic repeat request to due long propagation delays. The control plane protocol adaptations include a variety of mobility related enhancements for user equipment.
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页码：276 / 288
页数：13
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