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TR 38.821 (RAN3) ☆ (Rel-16 draft)
Solutions for NR to support Non-Terrestrial Networks

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V0.7.0 (Wzip)  2019/05  86 p.

Rapporteur:  Mr. Chuberre, Nicolas

The objectives for this document are, based on the outcomes of the TR 38.811, to study a set of necessary features/adaptations enabling the operation of the New Radio (NR) protocol in non-terrestrial networks for 3GPP Release 16 with a priority on satellite access. Access network based on Unmanned Aerial System (UAS) including High Altitude Platform Station (HAPS) could be considered as a special case of non-terrestrial access with lower delay/Doppler value and variation rate.

full Table of Contents for  TR 38.821  Word version:   0.7.0


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1  ScopeWord-p. 7
2  References
3  Definitions, symbols and abbreviationsWord-p. 8
4  Non-Terrestrial Networks overview and scenariosWord-p. 11
5  NTN-based NG-RAN ArchitecturesWord-p. 14
6  Radio Layer 1 issues and related solutionsWord-p. 30
7  Radio protocol issues and related solutionsWord-p. 46
8  Issues and related solutions for NG-RAN architecture and interface protocols
8.1  Tracking area management
8.2  Registration Update and Paging Handling
8.3  Connected mode mobilityWord-p. 65
8.4  Transport aspectsWord-p. 69
8.5  Network Identities Handling
8.6  User LocationWord-p. 74
8.7  Feeder link switch over
8.8  Operations & Maintenance (O&M)Word-p. 79
9  Recommendations on the way forward
A  Satellite ephemerisWord-p. 81
B  KPI and evaluation assumptionsWord-p. 83
C  Regulatory AspectsWord-p. 84
X  Change historyWord-p. 86

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