Content for TR 23.713 Word version: 13.0.0
5 Restricted ProSe Direct Discovery (non-public safety use)
6 Direct discovery (public safety use)
7 ProSe Direct Communication enhancements
5 Restricted ProSe Direct Discovery (non-public safety use) p. 9
5.1 Solution for restricted ProSe Direct Discovery p. 9
5.1.1 Functional Description p. 9
5.1.2 Procedures p. 11
5.1.2.1 Identifier definitions for Restricted Direct Discovery p. 11
5.1.2.2 General p. 11
5.1.2.3 Restricted Direct Discovery Announce Request procedure p. 11
5.1.2.4 Restricted Direct Discovery Monitor Request procedure p. 13
5.1.2.5 Restricted Direct Discovery Match Report procedure p. 16
5.1.2.6 Restricted Discovery Authorization Update p. 17
5.1.3 Impact on Existing Entities and Interfaces p. 20
5.2 Solution for Restricted ProSe Direct Discovery (Model B) p. 21
5.2.1 Functional Description p. 21
5.2.2 Procedures p. 21
5.2.2.1 Identifier definitions for On-Demand Discovery p. 21
5.2.2.2 Discoveree UE procedure p. 22
5.2.2.3 Discoverer UE procedure before discovery p. 23
5.2.2.4 Match Report procedure for Discoverer UE p. 24
5.2.3 Impact on Existing Entities and Interfaces p. 24
5.2.4 Topics for further study p. 24
5.2.5 Conclusions on Restricted Direct Discovery (Model B) p. 24
5.3 Restricted Discovery with application-controlled extension (non-public safety use) p. 24
5.3.1 Functional description for Restricted Discovery with application-controlled extension p. 24
5.3.2 Procedures for Restricted Discovery with application-controlled extension p. 25
5.4 Solution for Restricted ProSe Direct Discovery (on demand announcing) p. 28
5.4.1 Functional Description p. 28
5.4.2 Procedures p. 29
5.4.2.1 Restricted Direct Discovery(on demand announcing) Announce Request procedure p. 29
5.4.2.2 Restricted Direct Discovery (on demand announcing) Monitor Request procedure p. 30
5.4.2.3 Restricted Direct Discovery(on demand announcing) Announcing Alert Procedure p. 31
5.4.3 Impact on Existing Entities and Interfaces p. 32
5.5 Enhancement to the ProSe service authorization and provisioning p. 32
5.6 Topics for further study for restricted Direct Discovery p. 32
5.7 Conclusions on restricted ProSe Direct Discovery (non-public safety use) p. 33
6 Direct discovery (public safety use) p. 33
6.1 Solution for Direct Discovery (public safety use) p. 33
6.1.1 Functional Description p. 33
6.1.1.1 General p. 33
6.1.2 Procedures p. 34
6.1.2.1 General p. 34
6.1.2.2 UE-Network Relay discovery p. 36
6.1.2.2.1 Model A p. 36
6.1.2.2.2 Model B p. 37
6.1.2.3 Group member discovery p. 38
6.1.2.3.1 Model A p. 38
6.1.2.3.2 Model B p. 38
6.1.2.4 UE-to-UE Relay discovery p. 39
6.1.2.4.1 Model A p. 39
6.1.2.4.2 Model B p. 40
6.1.3 Impact on Existing Entities and Interfaces p. 41
6.2 Topics for further study for Direct Discovery (public safety use) p. 41
6.3 Conclusions on Direct Discovery (public safety use) p. 41
7 ProSe Direct Communication enhancements p. 41
7.1 Solution for one-to-one ProSe Direct Communication p. 41
7.1.1 Functional Description p. 41
7.1.1.1 General p. 42
7.1.1.2 PC5 Signalling Protocol p. 42
7.1.2 Procedures p. 42
7.1.2.1 Establishment of secure layer-2 link over PC5 p. 43
7.1.2.2 IP address assignment p. 43
7.1.2.3 Layer-2 link maintenance over PC5 p. 44
7.1.2.4 Layer-2 link release over PC5 p. 44
7.1.3 Impact on Existing Entities and Interfaces p. 44
7.1.4 Topics for further study for one-to-one ProSe Direct Communication p. 44
7.1.5 Conclusions on one-to-one ProSe Direct Communication p. 45
7.2 Solution for ProSe UE-Network Relays p. 45
7.2.1 Functional Description p. 45
7.2.1.1 General p. 45
7.2.1.2 Unicast relaying p. 45
7.2.1.3 eMBMS relay support p. 46
7.2.1.4 Support of ECGI announcement p. 46
7.2.2 Procedures p. 46
7.2.2.1 Relay Discovery and one-to-one communication establishment p. 46
7.2.2.2 TMGI advertisement and eMBMS traffic relay p. 48
7.2.2.3 Cell ID announcement procedure p. 49
7.2.2.4 Multicast/Broadcast traffic support using IP Multicast on Relay p. 51
7.2.3 Impact on Existing Entities and Interfaces p. 52
7.2.4 Topics for further study for ProSe UE-Network Relays p. 52
7.2.5 Conclusions on ProSe UE-Network Relays p. 53
7.3 Solution for ProSe UE-UE Relays (stateful relay selection) p. 53
7.3.1 Functional Description p. 53
7.3.2 Procedures p. 54
7.3.3 Impact on Existing Entities and Interfaces p. 54
7.3.4 Topics for further study on ProSe UE-UE Relays (stateful relay selection) p. 54
7.3.5 Conclusions on ProSe UE-UE Relays (stateful relay selection) p. 54
7.4 Solution for ProSe UE-UE Relays (stateless forwarding) p. 54
7.4.1 Functional Description p. 54
7.4.2 Procedures p. 55
7.5 Other ProSe Direct Communication related aspects p. 56
7.5.1 Solution for ProSe Priority and QoS p. 56
7.5.1.1 Functional Description p. 56
7.5.1.2 Procedures p. 56
7.5.1.3 Impact on Existing Entities and Interfaces p. 57
7.5.2 Solution for service continuity p. 57
7.5.2.1 Functional Description p. 57
7.5.2.2 Procedures p. 57
7.5.2.3 Impact on Existing Entities and Interfaces p. 57
7.5.3 Topics for further study on other communication related aspects p. 57
7.5.4 Conclusions on other communication related aspects p. 57
