Content for TR 36.763 Word version: 17.0.0
4 IoT Non-Terrestrial Networks overview and scenarios
5 IoT NTN architecture and capabilities
6 Radio Layer 1 issues and related solutions
7 Radio protocol issues and solutions
8 Recommendations on the way forward
B KPI and evaluation assumptions
C Individual Company battery life analysis
D Examples of paging capacity evaluation
E IoT NTN essential parts
$ Change history
4 IoT Non-Terrestrial Networks overview and scenarios p. 13
4.1 IoT Non-Terrestrial Networks overview p. 13
4.2 IoT Non-Terrestrial Networks reference scenarios p. 14
5 IoT NTN architecture and capabilities p. 15
6 Radio Layer 1 issues and related solutions p. 15
6.1 IoT NTN reference parameters p. 15
6.2 Link budget analysis p. 17
6.2.1 Link budget parameters p. 17
6.2.2 Summary of link budget results p. 21
6.2.2.1 Calibration of link budget results p. 21
6.2.2.1.1 Set-1 p. 23
6.2.2.1.2 Set-2 p. 23
6.2.2.1.3 Set-3 p. 24
6.2.2.1.4 Set-4 p. 24
6.2.2.1.5 Set-5 p. 25
6.3 Time and frequency synchronization enhancements p. 25
6.3.1 GNSS position fix impact on UE power consumption p. 25
6.3.1.1 Assumptions for UE power consumption analysis p. 26
6.3.1.2 Separate GNSS module and IoT module p. 27
6.3.1.3 Integrated GNSS module and IoT module p. 28
6.3.1.4 Power consumption-short, sporadic connections p. 29
6.3.1.5 Power consumption- long connections (e.g., based on CDRX) p. 30
6.3.1.6 Other observations from power consumption evaluation p. 30
6.3.2 NTN SIB reading impact on UE power consumption p. 31
6.3.3 Long UL transmission on PUSCH and PRACH p. 32
6.3.4 DL synchronization p. 32
6.3.5 GNSS measurements p. 32
6.3.6 PRACH congestion p. 33
6.4 Timing relationship enhancements p. 33
6.5 HARQ p. 35
6.6 Recommendation for IoT NTN specific enhancements p. 36
7 Radio protocol issues and solutions p. 40
7.1 Requirements and key issues p. 40
7.1.1 Delay p. 40
7.2 User plane enhancements p. 40
7.2.1 MAC p. 40
7.2.1.1 General p. 40
7.2.1.2 Random access p. 40
7.2.1.3 Discontinuous reception (DRX) p. 41
7.2.1.4 Scheduling request p. 41
7.2.1.5 HARQ p. 41
7.2.1.6 Uplink scheduling p. 42
7.2.1.7 Preconfigured uplink resource p. 42
7.2.2 RLC p. 42
7.2.2.1 Reordering timer p. 42
7.2.2.2 RLC sequence numbers p. 42
7.2.3 PDCP p. 42
7.2.3.1 Discard timer p. 42
7.2.3.2 PDCP sequence numbers p. 42
7.3 Control plane enhancements p. 43
7.3.1 Idle mode mobility enhancements p. 43
7.3.1.1 Tracking area p. 43
7.3.1.2 Using satellite assistance information and UE location information p. 45
7.3.1.3 Enhancements to UE Idle mode mobility p. 45
7.3.1.4 Further enhancements to system information acquisition p. 45
7.3.2 Connected mode mobility enhancements p. 45
7.3.2.1 General p. 45
7.3.2.2 Connected mode mobility for NB-IoT NTN p. 45
7.3.2.3 Connected Mode Mobility for eMTC NTN p. 45
7.3.3 Paging capacity p. 46
8 Recommendations on the way forward p. 47
8.1 Recommendations from RAN1 p. 47
8.1.1 Recommendation for enhancements common to NR NTN and IoT NTN p. 47
8.1.2 Summary of RAN1 recommendations in Release-17 timeframe p. 48
8.2 Recommendations from RAN2 p. 49
A Void
B KPI and evaluation assumptions p. 51
C Individual Company battery life analysis p. 52
C.1 Huawei battery life analysis (R1-2102344) p. 52
C.2 CATT battery life analysis (R1-2102618) p. 54
C.3 Qualcomm battery life analysis (R1-2103071) p. 56
C.4 MediaTek battery life analysis (R1-2102755) p. 56
C.5 Ericsson battery life analysis (R1-2103061) p. 58
C.6 Nokia battery life analysis (R1-210832) p. 61
D Examples of paging capacity evaluation p. 64
D.1 Example 1 ([21]) p. 64
D.2 Example 2 ([22]) p. 65
D.3 Example 3 ([23]) p. 67
D.3.1 Parameters for paging capacity calculation p. 67
D.3.2 Paging traffic load estimation p. 67
D.3.3 Paging Capacity Evaluation p. 67
D.4 Example 4 ([24]) p. 69
D.4.1 Paging capacity p. 69
E IoT NTN essential parts p. 71
E.1 Introduction p. 71
E.2 RAN2 Agreements p. 71
$ Change history p. 73
