Content for TR 38.836 Word version: 17.0.0
4 Sidelink-based UE-to-Network Relay
4.1 Scenarios, Assumptions and Requirements
4.2 Discovery
4.3 Relay (re-)selection criterion and procedure
4.4 Relay/Remote UE authorization
4.5 Layer-2 Relay
4.6 Layer-3 Relay
5 Sidelink-based UE-to-UE Relay
5.1 Scenario, Assumption and Requirement
5.2 Discovery
5.3 Relay (re-)selection criteria and procedure
5.4 Relay/Remote UE authorization
5.5 Layer-2 Relay
5.6 Layer-3 Relay
6 Conclusion
6.1 Evaluation and Conclusion of UE-to-Network Relay
6.2 Evaluation and Conclusion of UE-to-UE Relay
6.3 Feasibility and Recommendation
$ Change history
4 Sidelink-based UE-to-Network Relay p. 7
4.1 Scenarios, Assumptions and Requirements p. 7
4.2 Discovery p. 8
4.3 Relay (re-)selection criterion and procedure p. 9
4.4 Relay/Remote UE authorization p. 10
4.5 Layer-2 Relay p. 10
4.5.1 Architecture and Protocol Stack p. 10
4.5.2 QoS p. 12
4.5.3 Security p. 12
4.5.4 Service Continuity p. 12
4.5.4.0 General p. 12
4.5.4.1 Switching from indirect to direct path p. 12
4.5.4.2 Switching from direct to indirect path p. 13
4.5.5 Control Plane Procedure p. 14
4.5.5.1 Connection Management p. 14
4.5.5.2 Paging p. 16
4.5.5.3 System Information Delivery p. 16
4.5.5.4 Access control p. 16
4.6 Layer-3 Relay p. 16
4.6.1 Architecture and Protocol Stack p. 16
4.6.2 QoS p. 17
4.6.3 Security p. 17
4.6.4 Service Continuity p. 17
4.6.5 Control Plane Procedure p. 18
5 Sidelink-based UE-to-UE Relay p. 18
5.1 Scenario, Assumption and Requirement p. 18
5.2 Discovery p. 19
5.3 Relay (re-)selection criteria and procedure p. 20
5.4 Relay/Remote UE authorization p. 20
5.5 Layer-2 Relay p. 20
5.5.1 Architecture and Protocol Stack p. 20
5.5.2 QoS p. 21
5.5.3 Security p. 22
5.5.4 Control Plane Procedure p. 22
5.6 Layer-3 Relay p. 22
5.6.1 Architecture and Protocol Stack p. 22
5.6.2 QoS p. 22
5.6.3 Security p. 22
5.6.4 Control Plane Procedure p. 22
6 Conclusion p. 22
6.1 Evaluation and Conclusion of UE-to-Network Relay p. 22
6.1.1 Layer-2 Relay p. 22
6.1.1.0 Conclusions of Layer-2 Relay p. 22
6.1.1.1 Relay discovery and (re)selection p. 22
6.1.1.2 Relay UE and Remote UE authorization p. 22
6.1.1.3 QoS management p. 22
6.1.1.4 Service continuity p. 23
6.1.1.5 Security p. 23
6.1.1.6 Protocol stack design p. 23
6.1.1.7 CP procedures p. 23
6.1.2 Layer-3 Relay p. 23
6.2 Evaluation and Conclusion of UE-to-UE Relay p. 24
6.2.1 Layer-2 Relay p. 24
6.2.1.0 Conclusions of Layer-2 Relay p. 24
6.2.1.1 Relay discovery and (re)selection p. 24
6.2.1.2 Relay and Remote UE authorization p. 24
6.2.1.3 QoS management p. 24
6.2.1.4 Security p. 24
6.2.1.5 Protocol stack design p. 25
6.2.1.6 CP procedures p. 25
6.2.2 Layer-3 Relay p. 25
6.3 Feasibility and Recommendation p. 25
$ Change history p. 26
