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Content for  TR 38.821  Word version:  16.1.0

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1…   4…   5…   5.2…   5.2.2…   5.3…   5.4…   6…   6.1.1.2…   6.1.2   6.1.3   6.1.4   6.2…   6.3…   7…   7.3…   8…   8.3…   8.4…   8.7…   9…   A…   B…   C… 
7.3 Control plane enhancements  7.3.1 Idle mode mobility enhancements  7.3.2 Connected mode mobility enhancements  7.3.3 Paging issue  7.3.4 Radio Link Monitoring  7.3.5 PLMN identities deployment  7.3.6 Ephemeris Data for NTN  7.4 Earth fixed cells vs Earth moving cells 
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7.3  Control plane enhancements  Word‑p. 89

7.3.1  Idle mode mobility enhancements  Word‑p. 90

7.3.1.1  General Tracking Area Issues [16]  Word‑p. 90

7.3.1.2  Moving Tracking Area for NTN LEO, Scenario C2 and D2 [17]  Word‑p. 91

7.3.1.3  Fixed Tracking Area for NTN LEO, Scenario C2 and D2 [17]  Word‑p. 91

7.3.1.3.1  Approach 1: For the case when UE location information is unavailable  Word‑p. 91
7.3.1.3.2  Approach 2: For the case when UE location information is available  Word‑p. 92
7.3.1.3.3  Tracking Area recommendation  Word‑p. 92

7.3.1.4  Enhancements to idle/inactive UE mobility procedure  Word‑p. 92

7.3.1.5  Mobility state estimation mechanism  Word‑p. 93

7.3.1.6  Using ephemeris information and UE location information  Word‑p. 93

7.3.1.7  System information broadcast  Word‑p. 93

7.3.2  Connected mode mobility enhancements  Word‑p. 93

7.3.2.1  Mobility Challenges for Non-Terrestrial Networks  Word‑p. 93

7.3.2.1.1  Latency associated with mobility signalling  Word‑p. 93
7.3.2.1.2  Measurement Validity  Word‑p. 94
7.3.2.1.3  Cell overlap and reduced signal strength variation  Word‑p. 95
7.3.2.1.4  Frequent and unavoidable handover  Word‑p. 95
7.3.2.1.5  Dynamic neighbour cell set  Word‑p. 96
7.3.2.1.6  Handover for a large number of UEs  Word‑p. 96
7.3.2.1.7  Impact of Propagation Delay Difference on Measurements  Word‑p. 98

7.3.2.2  Mobility Enhancements for Non-Terrestrial Networks  Word‑p. 98

7.3.2.2.1  Enhancements to Measurement Configuration/Reporting  Word‑p. 98
7.3.2.2.2  Conditional Handover  Word‑p. 98
7.3.2.2.3  Mobility Configuration  Word‑p. 100

7.3.2.3  Connected mode mobility for feeder link switch for LEO NTN [18]  Word‑p. 100

7.3.2.4  Connected mode mobility assumptions  Word‑p. 100

7.3.3  Paging issue  Word‑p. 100

7.3.3.1  Paging Capacity  Word‑p. 100

7.3.3.1.1  Paging capacity of non-multibeam cell  Word‑p. 101
7.3.3.1.2  Example of calculation  Word‑p. 101

7.3.4  Radio Link Monitoring  Word‑p. 103

7.3.5  PLMN identities deployment  Word‑p. 103

7.3.6  Ephemeris Data for NTN  Word‑p. 103

7.3.6.1  Representation of Complete Ephemeris Data  Word‑p. 103

7.3.6.2  Provision and Use of Ephemeris Data  Word‑p. 104

7.3.6.3  Updating Stored Ephemeris Data  Word‑p. 105

7.4  Earth fixed cells vs Earth moving cells  Word‑p. 105

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