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Content for  TR 29.821  Word version:  17.0.0

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4  Architectural Requirements and AssumptionsWord‑p. 9

5  Key IssuesWord‑p. 10

6  SolutionsWord‑p. 11

6.1  Solution#1: Restoration for AMFWord‑p. 11

6.2  Solution #2: Restoration for AMF and SMF with event exposureWord‑p. 13

6.3  Solution #3: Restoration for AMF and SMSF with event exposureWord‑p. 14

6.4  Solution #4: Restoration for AMF and SMSF without event exposureWord‑p. 15

6.5  Solution#5: <S#5> Propagate the change of the UDR NF status using direct signalling between UDM and NFsWord‑p. 16

6.6  Solution#6: <S#6> Propagate the change of the UDR NF status via NRF and UDMWord‑p. 18

6.7  Solution#7: Unified solutionWord‑p. 21

6.8  Solution#8: Reset-IDsWord‑p. 25

6.9  Solution#9: Unified solution with Reset-ID or SUPI rangesWord‑p. 26

6.10  Solution#10: Prevent overwriting of latest UECM DataWord‑p. 28

6.11  Solution#11: Handling Nudm_UECM without Authentication StatusWord‑p. 29

6.12  Solution#12: Recovery of AUSF Instance holding latest KAUSFWord‑p. 30

6.13  Solution#13: Unified solution with Implicit SubscriptionWord‑p. 30

6.14  Solution#14: Deferred Nudm_UECM due to lack of authentication statusWord‑p. 32

6.15  Solution#15: Notification via existing NRF servicesWord‑p. 32

6.15.1  IntroductionWord‑p. 32

6.15.2  Functional DescriptionWord‑p. 32

6.15.3  ProceduresWord‑p. 33

6.16  Solution#16: Notification via UDR consumer and existing NRF servicesWord‑p. 33

6.16.1  IntroductionWord‑p. 33

6.16.2  Functional DescriptionWord‑p. 33

6.16.3  ProceduresWord‑p. 34

6.17  Solution#17: Notification via a new NRF serviceWord‑p. 34

6.17.1  IntroductionWord‑p. 34

6.17.2  Functional DescriptionWord‑p. 34

6.17.3  ProceduresWord‑p. 35

6.18  Solution#18: Notification via a new DataRestoration Network Function (DRNF)Word‑p. 35

6.18.1  IntroductionWord‑p. 35

6.18.2  Functional DescriptionWord‑p. 35

6.18.3  ProceduresWord‑p. 36

6.19  Solution#19: Notification via UDM to Default Notification URIsWord‑p. 36

6.20  Solution#20: Notification via Reset Control Function (RCF)Word‑p. 42

6.21  Solution#21: Notification via Reset Control Function (RCF) without explicit subscription from end-consumer NFWord‑p. 44

6.22  Solution#22: DNN/S-NSSAI as new granularityWord‑p. 46

7  EvaluationsWord‑p. 47

8  ConclusionsWord‑p. 53

$  Change historyWord‑p. 54


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