TR 24.821
Study on PLMN selection for Satellite Access

3GPP‑Page fToC_↓ Partial Content _→

V17.0.0 (Wzip) 2021/09 48 p.

Rapporteur:: Mr. Catovic, Amer
Qualcomm CDMA Technologies

full Table of Contents for TR 24.821 Word version: 17.0.0

each clause number in 'red' refers to the equivalent title in the Partial Content

Scope p. 7

References p. 7

Definitions of terms, symbols and abbreviations p. 8

3.1	Terms p. 8
3.2	Symbols p. 8
3.3	Abbreviations p. 8

Deployment scenarios for PLMN selection p. 8

4.1	Scenario A p. 8
4.2	Scenario B p. 9
4.3	Scenario C p. 9
4.4	Scenario D p. 10

Key issues p. 11

5.1	Key issue #1: Determination of the country of the UE's location p. 11
5.2	Key issue #2: Use of core network of PLMN in country where UE is located p. 11
5.3	Key issue #3: PLMN selection in international areas p. 12
5.4	Key issue #4: Handling of shared/global PLMN IDs p. 12
5.5	Key issue #5: Handling of new satellite RAT p. 13
5.6	Key issue #6: PLMN search for satellite access p. 13
5.7	Key issue #7: Emergency calls p. 13

Solutions p. 14

6.1

Mapping of solutions to key issues p. 14

6.2

Solution 1 p. 14

6.2.1	Target key issue p. 14
6.2.2	Solution description p. 14
6.2.3	Impacts to existing procedures due to the solution p. 15

6.3

Solution 2: Determining PLMNs that can be selected in the country of UE location based on USIM configuration p. 15

6.3.1	Target key issue p. 15
6.3.2	Solution Description p. 15
6.3.3	Impacts p. 16

6.4

Solution 3 p. 16

6.4.1	Target key issue p. 16
6.4.2	Solution description p. 16
6.4.3	Impacts to existing procedures due to the solution p. 17

6.5

Solution 4: PLMN selection inside international areas p. 17

6.5.1	Target key issue p. 17
6.5.2	Solution description p. 17
6.5.3	Impacts p. 18

6.6

Solution 5 p. 18

6.6.1	Target key issue p. 18
6.6.2	Solution description p. 18
6.6.3	Impacts to existing procedures due to the solution p. 19

6.7

Solution 6: Handling of PLMNs with shared MCC p. 19

6.7.1	Target Key Issue p. 19
6.7.2	Solution description p. 19
6.7.3	Impacts p. 19

6.8

Solution 7 p. 19

6.8.1	Target key issue p. 19
6.8.2	Solution description p. 19
6.8.3	Impacts to existing procedures due to the solution p. 20

6.9

Solution 8: Range of values for timer T for UE in satellite access p. 20

6.9.1	Introduction p. 20
6.9.2	Solution description p. 21
6.9.3	Impacts p. 21

6.10

Solution 9: Determination of the country of the UE's location p. 21

6.10.1

Target key issue p. 21

6.10.2

Solution description p. 21

6.10.2.1	Determination of the UE geolocation p. 21
6.10.2.2	Determination of the country of the UE location p. 22

6.10.3

Impacts to the existing procedures due to the solution p. 22

6.11

Solution 10 p. 22

6.11.1	Target key issue p. 22
6.11.2	Solution description p. 22
6.11.3	Impacts to existing procedures due to the solution p. 22

6.12

Solution 11: PLMN selection inside international areas p. 23

6.12.1	Target key issue p. 23
6.12.2	Solution description p. 23
6.12.3	Impacts p. 23

6.13

Solution 12 p. 23

6.13.1	Target key issue p. 23
6.13.2	Solution Description p. 23
6.13.3	Impacts p. 24

6.14

Solution 13 p. 24

6.14.1	Target key issue p. 24
6.14.2	Solution Description p. 24
6.14.3	Impacts p. 25

6.15

Solution 14 p. 25

6.15.1	Target key issue p. 25
6.15.2	Solution Description p. 25
6.15.3	Impacts p. 26

6.16

Solution 15: Access technology selection based on PLMN Selector list with wildcarded PLMN ID p. 26

6.16.1	Target key issue p. 26
6.16.2	Solution Description p. 26
6.16.3	Impacts p. 27

6.17

Solution 16: Restrictions in camping on an acceptable cell p. 27

6.17.1	Target key issue p. 27
6.17.2	Solution description p. 28
6.17.3	Impacts to existing procedures due to the solution p. 28

6.18

Solution 17: PLMN search for satellite access p. 28

6.18.1	Target key issue p. 28
6.18.2	Solution description p. 28
6.18.3	Impacts p. 29

6.19

Solution 18 p. 29

6.19.1	Target key issue p. 29
6.19.2	Solution Description p. 29
6.19.3	Impacts p. 30

6.20

Solution 19: Use of network indication of MCC(s) p. 30

6.20.1	Target key issue p. 30
6.20.2	Solution Description p. 30
6.20.3	Impacts p. 31

6.21

Solution 20: Handling or RAT prioritization p. 31

6.21.1	Target key issue p. 31
6.21.2	Solution description p. 31
6.21.3	Impacts to the existing procedures due to the solution p. 32

6.22

Solution 21: Use of user and device settings for searching Satellite access or Terrestrial access PLMNs prior to PLMN selection p. 33

6.22.1	Target key issue p. 33
6.22.2	Solution description p. 33
6.22.3	Impacts p. 33

6.23

Solution 22: UE unawareness of LI requirements p. 34

6.23.1	Target key issue p. 34
6.23.2	Solution description p. 34
6.23.3	Impacts to existing procedures due to the solution p. 34

Evaluation p. 36

7.1	Evaluation of Solutions for Key Issue #1 p. 36
7.2	Evaluation of Solutions for Key Issue #2 p. 38
7.3	Evaluation of Solutions for Key Issue #3 p. 39
7.4	Evaluation of Solutions for Key Issue #4 p. 40
7.5	Evaluation of Solutions for Key Issue #5 p. 40
7.6	Evaluation of Solutions for Key Issue #6 p. 41
7.7	Evaluation of Solutions for Key Issue #7 p. 43

Conclusion p. 43

8.1	Conclusion for key issue 1 p. 43
8.2	Conclusion for key issue 2 p. 43
8.3	Conclusion for key issue 3 p. 44
8.4	Conclusion for key issue 4 p. 44
8.5	Conclusion for key issue 5 p. 45
8.6	Conclusion for key issue 6 p. 45
8.7	Conclusion for key issue 7 p. 46

Change history p. 47

TR 24.821 Study on PLMN selection for Satellite Access

full Table of Contents for TR 24.821 Word version: 17.0.0

TR 24.821
Study on PLMN selection for Satellite Access