Tech-invite 3GPPspace IETFspace

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Content for TR 37.816 Word version: 16.0.0

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2 References p. 6

3 Definitions of terms, symbols and abbreviations p. 6

3.1 Terms p. 6

3.2 Symbols p. 7

3.3 Abbreviations p. 7

4 General p. 7

5 Use cases and solutions for RAN-centric data collection and utilization p. 7

5.1 Capacity and Coverage Optimization p. 7

5.1.1 Use case description p. 7

5.1.2 Solution description p. 8

5.1.2.1 Detection of Coverage and Capacity Issues p. 8

5.1.2.2 Possible actions to resolve detected issues p. 9

5.1.3 Conclusion p. 10

5.2 PCI selection p. 10

5.2.1 Use case description p. 10

5.2.2 Solution description p. 10

5.2.3 Conclusion p. 11

5.3 Mobility optimization p. 11

5.3.1 Use case description p. 11

5.3.2 Solution description p. 12

5.3.2.1 Connection failure due to mobility p. 12

5.3.2.2 Inter-system Unnecessary HO p. 14

5.3.2.3 Inter-system HO ping-pong p. 15

5.3.2.4 SN change failure in case of EN-DC, NGEN-DC, NE-DC and NR-DC p. 15

5.3.2.5 Successful HO Report p. 16

5.3.3 Conclusion p. 17

5.4 Load Sharing and Load Balancing Optimization p. 17

5.4.1 Use case description p. 17

5.4.2 Solution description p. 17

5.4.3 Conclusion p. 18

5.5 RACH Optimization p. 18

5.5.1 Use case description p. 18

5.5.2 Solution description p. 19

5.5.3 Conclusion p. 20

5.6 Energy Saving p. 20

5.6.1 Use case description p. 20

5.6.2 Solution description p. 21

5.6.3 Conclusion p. 21

5.7 Minimization of Drive Test (MDT) Use Cases p. 21

5.7.1 General p. 21

5.7.2 Use case description p. 22

5.7.2.1 Use case: Coverage Optimization via MDT p. 22

5.7.2.2 Use case: QoS verification via MDT p. 22

5.7.2.3 Use case: Indoor MDT improvement p. 22

5.7.2.4 Use case: Sensor data collection p. 23

5.7.3 Solution description p. 23

5.7.3.1 Measurements p. 23

5.7.3.2 MDT procedures p. 23

5.7.3.3 MDT activation in split RAN p. 25

5.7.3.3.0 General p. 25

5.7.3.3.1 Signalling activation p. 25

5.7.3.3.2 Management activation p. 25

5.7.3.4 MDT reporting in split RAN p. 26

5.7.3.5 MDT for dual connectivity p. 26

5.7.4 Conclusion p. 26

5.8 UE energy saving p. 27

5.8.1 Use case description p. 27

5.8.2 Solution description p. 28

5.8.3 Conclusion p. 28

5.9 Active Antenna System (AAS) Optimization p. 28

5.9.1 Use case description p. 28

5.9.2 Solution description p. 28

5.9.3 Conclusion p. 28

6 Measurement quantities, events and faults for collection and utilization p. 28

6.1 General p. 28

6.2 Measurement quantities p. 29

6.2.1 UE originated measurements p. 29

6.2.2 L2 measurement quantities p. 29

6.2.2.0 General p. 29

6.2.2.1 L2 measurements in TS 28.552 p. 29

6.2.2.2 RAN part of packet delay measurement p. 32

6.2.2.2.1 UL packet delay measurement p. 33

6.2.2.2.2 DL packet delay measurement p. 33

6.2.3 L1 measurement quantities (e.g. Timing Advance in RAR) p. 33

6.2.4 Sensor data for UE orientation/altitude to log in addition to location p. 33

6.3 Events and faults p. 34

6.3.1 RLF and access failure information p. 34

6.4 Conclusion p. 34

7 Conclusion p. 34

$ Change History p. 35