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TR 28.841
Study on management aspects of Internet of Things (IoT) Non-Terrestrial Networks (NTN) enhancements

V18.0.1 (Wzip) 2023/06 22 p.

Rapporteur:: Mr. Sun, Mingrui
China Unicom

full Table of Contents for TR 28.841 Word version: 18.0.1

1 Scope p. 7

The present document studies on management aspects of IoT NTN enhancements. It investigates specific IoT NTN related parameters which should be considered by O&M, investigates NRM enhancement, performance measurement and related new KPIs of IoT NTN. It studies the key issues associated with service and network management of IoT NTN enhancements (whether as NG-RAN or E-UTRAN) and potential solutions, and provides recommendations for the further normative work.

2 References p. 7

3 Definitions of terms, symbols and abbreviations p. 7

3.1 Terms p. 7

3.2 Symbols p. 8

3.3 Abbreviations p. 8

4 Concepts and background p. 9

4.1 Reference management architecture for integrated satellite components p. 9

4.1.1 Management architecture #1 for integrated satellite NBIoT/LTE-M RAT p. 9

4.1.2 Management architecture #2 for integrated satellite NBIoT/LTE-M -RAT and satellite NR-RAT p. 9

4.1.3 Management architecture #3 for integrated non-3GPP satellite RAN p. 10

4.2 Architecture Scenarios for integrated satellite components p. 11

4.2.1 scenario #1: A 3GPP network with access networks and terrestrial access networks p. 11

4.2.2 scenario #2: Satellite enabled 3GPP network as a roaming network for terrestrial network operators p. 11

5 Use cases and key issues p. 12

5.1 Use cases p. 12

5.1.1 Use case #1: Management of satellite components p. 12

5.1.1.1 Use case for NGSO regenerative satellite components p. 12

5.1.1.1.1 Pre-conditions p. 12

5.1.1.1.2 Description p. 12

5.1.1.1.3 Post-description p. 12

5.1.1.2 Use case for NGSO transparent satellite components p. 12

5.1.1.2.1 Pre-conditions p. 12

5.1.1.2.2 Description p. 13

5.1.1.2.3 Post-description p. 13

5.1.1.3 Use case for NTN Mobility Management p. 13

5.1.1.3.1 Pre-conditions p. 13

5.1.1.3.2 Description p. 13

5.1.1.3.3 Post-description p. 13

5.1.2 Use case #2: Monitoring of satellite components p. 13

5.1.2.1 Use case for monitoring of average delay on DL-Air Interface for MEO and GEO satellite components p. 13

5.1.2.1.1 Goal p. 13

5.1.2.1.2 Pre-conditions p. 14

5.1.2.1.3 Description p. 14

5.1.2.1.4 Post-description p. 14

5.2 Potential requirements p. 14

5.2.1 Use case #1 Management of satellite components p. 14

5.2.1.1 Management of NGSO regenerative satellite components p. 14

5.2.1.2 Management of NGSO transparent satellite components p. 14

5.2.1.3 Mobility Management enhancement p. 14

5.2.2 Use case #2 Monitoring of satellite components p. 14

5.2.2.1 Monitoring of average delay on DL-Air Interface with MEO or GEO satellite components p. 14

5.3 Potential solutions p. 15

5.3.1 Use case #1 potential solutions for the management of NGSO regenerative and transparent satellite components p. 15

5.3.1.1 Solution #1: Prevent PCI conflicts, PCI confusion and continuous NCR-reconfigurations by using SON functions p. 15

5.3.1.2 Solution #2: Potential solution for NTN Mobility Management enhancement with discontinuous satellite coverage p. 16

5.3.2 Use case #2 potential solutions for the monitoring of satellite components p. 17

5.3.2.1 Solution to monitor delay on the DL-Air Interface with MEO or GEO satellite components p. 17

6 Conclusions and recommendations p. 17

A Characteristics of satellite systems p. 18

A.1 General p. 18

A.2 Class of orbit p. 18

B Reference architecture with satellite enabled RAN p. 19

B.0 General p. 19

B.1 CIoT EPS with transparent satellite enabled RAN p. 19

B.2 CIoT EPS with regenerative satellite enabled RAN and on-board eNB p. 19

$ Change history p. 21