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Content for  TR 23.756  Word version:  16.0.0

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5  Key Issuesp. 7

6  Solutionsp. 8

6.1  Solution #1: Enable 5G SRVCC with existing mechanismp. 8

6.2  Solution #2: Indirect SRVCC procedurep. 9

6.3  Solution #3: Returning UE from UTRAN to NR or E-UTRA using MME-litep. 13

6.4  Solution #4: Return to 5GS when the UE is switched into EPS after voice ends in 3Gp. 15

6.5  Solution #5: PDU session release after 5G SRVCC procedurep. 17

6.6  Solution #6: PDU session suspend after 5G SRVCC procedurep. 19

6.7  Solution #7: Returning UE from UTRAN to E-UTRA using MME-litep. 21

6.8  Solution #8: Solution for key issue 3# - 2 Step method Return 5GS After 5G SRVCC with existing mechanismp. 23

6.9  Solution #9: Solution for key issue 3# - Return 5GS After 5G SRVCC depend on UE implementationp. 23

7  Evaluationp. 24

8  Conclusionsp. 26

$  Change Historyp. 27


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