Content for TR 23.711 Word version: 14.0.0
4 Architecture p. 7
5 Key Issues p. 8
5.1 Key Issue #1: DCN selection by UE assistance p. 8
5.2 Key Issue 2: Congestion Control for DCN Types p. 8
5.3 Key Issue #3: Load balancing within DCN p. 8
6 Solutions p. 9
6.1 Solution #1: UE assistance information for selection of EPC DCN p. 9
6.1.1 Solution Description p. 9
6.1.1.1 Use of DCN Selection Assistance parameter at a registration attempt p. 11
6.1.1.2 Initial selection p. 11
6.1.1.3 eNodeB configuration p. 13
6.1.2 Impacts on existing nodes p. 13
6.1.3 Solution evaluation p. 14
6.2 Solution #2: UE assisted DCN selection p. 14
6.2.1 Solution Description p. 14
6.2.1.2 Procedure p. 14
6.2.2 Impacts on existing nodes p. 16
6.2.3 Solution evaluation p. 16
6.3 Solution #3: Dedicated Core Network (DCN) selection based on UE's indication to RAN p. 16
6.3.1 Description p. 16
6.3.2 Impacts on existing nodes and functionality p. 18
6.3.3 Solution Evaluation p. 19
6.4 Solution #4: Assignment of DCN during the attach, TAU/RAU and service request procedure p. 19
6.4.1 General p. 19
6.4.1.2 DCN selection p. 20
6.4.2 Impacts on existing nodes p. 21
6.4.3 Solution evaluation p. 21
6.5 Solution #5: DCN selection based on Usage Type and DCN Type p. 21
6.5.1 Solution Description p. 21
6.5.1.1 Use of DCN Selection Assistance parameter at a registration attempt p. 23
6.5.1.2 Initial selection p. 23
6.5.1.3 eNodeB configuration p. 25
6.5.2 Impacts on existing nodes p. 25
6.6 Solution #6: UE Usage Type provided by CN and stored in UE p. 26
6.6.1 Solution Description p. 26
6.6.1.1 Use of UE Usage Type at a registration attempt p. 26
6.6.1.2 eNodeB configuration p. 27
6.6.1.3 HSS initiated UE Usage Type update p. 27
6.6.2 Impacts on existing nodes p. 28
6.7 Solution #7: Updating a UE after an HSS Initiated Update to the UE Usage Type p. 28
6.7.1 Solution Description p. 28
6.7.2 Impacts on existing nodes and functionality p. 30
6.7.3 Solution Evaluation p. 30
6.8 Solution #8: Congestion Control based on DCN ID and congestion level p. 30
6.8.1 Solution Description p. 30
6.8.2 Impacts on existing nodes p. 32
6.8.3 Solution evaluation p. 32
6.9 Solution #9: NAS level Congestion Control based on DCN p. 32
6.9.1 Solution Description p. 32
6.9.2 Impacts on existing nodes p. 33
6.9.3 Solution evaluation p. 33
6.10 Solution #10 Load Balancing for DCNs p. 33
7 Overall Evaluation p. 35
7.1 Key Issue #1 p. 35
7.2 Key Issue #2 p. 35
8 Conclusion p. 35
$ Change History p. 36
