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00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.7.3 Procedures
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00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.7.3.1 One-from-server video pull enhancement
| Procedure in figure 7.7.3.1-1 is the common signalling control plane procedures for the MCVideo communication enhancement with ECN marking for L4S capability.
Pre-condition:
1. The MCVideo server has already obtained the L4S handling capability from the MCVideo client 1.
Figure 7.7.3.1-1: One-from-server video pul... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.7.3.2 One-to-server- video push enhancement
| Figure 7.7.3.2-1 describes a common signalling control plane procedure for MC video client initiating the establishment of video push where the push feature is enhanced via ECN marking for L4S capability.
Precondition:
- The MCVideo server has already obtained the L4S handling capability from the MCVideo client 1.
... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.8 5MBS support for MC clients hosted on non-3GPP devices
| The 5MBS support for MC clients hosted on non-3GPP devices are supported by the procedures and information flows as defined in clause 11.5.3 of 3GPP TS 23.280 [3] with following clarifications and changes:
- the "MBMS" is the "5MBS", the "MBMS bearer" is the "MBS session".
- the "TMGI(s)" IE should be "MBS session ID... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9 Reporting the quality of MC service client connection
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00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9.1 General
| This clause describes the procedure to inform authorised MC service user(s) about the connection quality of a target MC service client. As a result, the target MC service client obtains the signal strength measurement, and any necessary information associated with the current connection utilized by the MC service UE an... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9.2 Information flows
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00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9.2.1 Quality of MC service client connection request
| Table 7.9.2.1-1 describes the information flow of the quality of MC service client connection request sent from the MC service client to the MC service server, and from the MC service server to the MC service client.
Table 7.9.2.1-1: Quality of MC service client connection request
Information element
Status
Descr... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9.2.2 Quality of MC service client connection response
| Table 7.9.2.2-1 describes the information flow of the quality of MC service client connection response sent from the MC service client to the MC service server.
Table 7.9.2.2-1: Quality of MC service client connection response
Information element
Status
Description
MC service ID
M
The MC service identity of the... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9.3 Provide quality of direct connection of an MC service UE
| Figure 7.9.3-1 illustrates the procedure to provide an authorised MC service client the quality of direct connection of a certain MC service UE.
Figure 7.9.3-1: Providing the quality of MC service client connection
1. The MC service user 1 would like to know the direct connection quality of the MC service UE 2... |
00c630369f4492b30b380be367f5dbf7 | 23.289 | 7.9.4 Provide quality of indirect connection of a remote MC service UE
| Figure 7.9.4-1 illustrates the procedure to provide an authorised MC service client the quality of the indirect connection of a certain remote MC service UE.
Precondition:
- MC service UE 2 is connected to the 5GS via an MC capable 5G ProSe (multihop) UE-to-Network relay.
Figure 7.9.4-1: Providing the quality of... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 1 Scope
| The present document specifies the Stage 2 of the Proximity based Services (ProSe) features in 5GS. 5G ProSe features consist of: 5G ProSe Direct Discovery, 5G ProSe Direct Communication, 5G ProSe UE-to-Network Relay, 5G ProSe UE-to-UE Relay and 5G ProSe Intermediate UE-to-Network Relay.
5G ProSe Direct Discovery iden... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 2 References
| The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.
- For a specific reference, subsequent revisions do not apply.
-... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 3 Definitions of terms and abbreviations
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 3.1 Terms
| For the purposes of the present document, the terms given in TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [1].
5G ProSe-enabled UE: A UE that supports 5G ProSe requirements and associated procedures.
5G ProSe ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 3.2 Abbreviations
| For the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 [1].
5G DDNMF 5G Direct Discovery Name Management Function
AS layer Access Str... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4 Architecture model and concepts
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.1 General concept
| Proximity based Services (ProSe) are services that can be provided by the 5GS based on UEs being in proximity to each other.
The 5GS enablers for ProSe include the following functions:
- 5G ProSe Direct Discovery;
- 5G ProSe Direct Communication;
- 5G ProSe UE-to-Network Relay;
- 5G ProSe Intermediate UE-to-Networ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2 Architectural reference model
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.1 Non-roaming reference architecture
| Figure 4.2.1-1 shows the high-level view of the non-roaming 5G System architecture for Proximity-based Services (ProSe) with service-based interfaces within the Control Plane. In this figure, UE A and UE B use a subscription of the same PLMN.
Figure 4.2.1-1: Non-roaming 5G System architecture for Proximity-based Ser... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.2 Roaming reference architecture
| Figure 4.2.2-1 shows the high-level view of the roaming 5G System architecture for Proximity-based Services (ProSe) with service-based interfaces within the Control Plane. In the figure, UE A uses a subscription of HPLMN.
Figure 4.2.2-1: Roaming 5G System architecture for Proximity-based Services
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.3 Inter-PLMN reference architecture
| The following figure 4.2.3-1 shows the high level view of the non-roaming inter-PLMN architecture with service-based interfaces within the Control Plane. In this figure, PLMN A is the HPLMN of UE A and PLMN B is the HPLMN of UE B.
Figure 4.2.3-1: Non-roaming Inter-PLMN 5G System architecture for Proximity-based Serv... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.4 AF-based service parameter provisioning
| The 5G System provides NEF services to enable communication between NFs in the PLMN and a ProSe Application Server. Figure 4.2.4-1 shows the high level view of AF-based service parameter provisioning for 5G ProSe communications. The ProSe Application Server may provide ProSe service parameters to the PLMN via NEF. The ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.5 Reference points
| PC1: The reference point between the ProSe application in the UE and in the ProSe Application Server. It is used to define application level signalling requirements. This reference point is not specified in this release of the specification.
PC3a: The reference point between the UE and the 5G DDNMF. PC3a relies on 5GC... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.6 Service-based interfaces
| N5g-ddnmf: Services provided by 5G DDNMF to manage inter-PLMN 5G ProSe Direct Discovery operations.
Npkmf: Service provided by 5G PKMF to support inter-PLMN ProSe security management. The function of Npkmf is defined in TS 33.503 [29].
In addition to the relevant services defined in TS 23.501 [4] for the following se... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.7 5G ProSe UE-to-Network Relay reference architecture
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.7.1 5G ProSe Layer-3 UE-to-Network Relay reference architecture
| The following figure 4.2.7.1-1 shows the high level reference architecture for 5G ProSe Layer-3 UE-to-Network Relay. In this figure, the 5G ProSe Layer-3 UE-to-Network Relay may be in the HPLMN or a VPLMN.
Figure 4.2.7.1-1: Reference architecture for 5G ProSe Layer-3 UE-to-Network Relay
The following figure 4.2.7.1... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.7.2 5G ProSe Layer-2 UE-to-Network Relay reference architecture
| Figure 4.2.7.2-1 shows the 5G ProSe Layer-2 UE-to-Network Relay reference architecture. The 5G ProSe Layer-2 Remote UE and 5G ProSe Layer-2 UE-to-Network Relay may be served by the same or different PLMNs. If the serving PLMNs of the 5G ProSe Layer-2 Remote UE and the 5G ProSe Layer-2UE-to-Network Relay are different t... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.8 5G ProSe UE-to-UE Relay reference architecture
| Figure 4.2.8-1 shows the Layer-2 and Layer-3 5G ProSe UE-to-UE Relay reference architecture. The 5G ProSe End UEs communicate with each other via a 5G ProSe UE-to-UE Relay.
Figure 4.2.8-1: Reference architecture for 5G ProSe UE-to-UE Relay
Each 5G ProSe End UE and the 5G ProSe UE-to-UE Relay may have subscriptions ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.9 Support for 5G ProSe in NPNs
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.9.1 Support for 5G ProSe in SNPN
| The proximity based services defined in this specification are applicable to SNPN(s) with the following adaptations:
- The non-roaming architecture in clause 4.2.1 is applicable also to SNPN, whereby the term PLMN is replaced by subscribed SNPN.
- The roaming architecture in clause 4.2.2 is not supported.
- Inter-SN... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.2.9.2 Support for 5G ProSe in conjunction with CAG in PNI-NPN
| In this Release, the CAG based access control is not applicable to the 5G ProSe Layer-3 UE-to-Network Remote UE accessing the network via 5G Layer-3 ProSe Relay.
NOTE 1: PNI-NPNs by means of one (or more) Network Slice instances or dedicated DNNs are supported for 5G Layer-3 ProSe UE-to-Network Relay.
The 5G ProSe La... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3 Functional Entities
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.1 UE
| Any 5G ProSe-enabled UE may support the following functions:
- Exchange of information for 5G ProSe Direct Discovery between 5G ProSe-enabled UE and the 5G DDNMF over PC3a reference point.
- Procedures for 5G ProSe Direct Discovery of other 5G ProSe-enabled UEs over PC5 reference point.
- Procedures for 5G ProSe Dir... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.2 5G DDNMF
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.2.1 General
| The 5G DDNMF is the logical function handling network related actions required for dynamic 5G ProSe Direct Discovery. In this version of the specification, it is assumed that there is only one logical 5G DDNMF in each PLMN that supports 5G ProSe Direct Discovery service.
NOTE: If multiple 5G DDNMFs are deployed within... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.2.2 5G DDNMF Discovery
| The 5G DDNMF of HPLMN is discovered through interaction with the Domain Name Service function. The UE may have the 5G DDNMF address in the Home PLMN (either as a FQDN or an IP address) pre-configured or provisioned as specified in clause 5.1.2.1. If it is not pre-configured or provisioned then the UE self-constructs th... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.3 PCF
| In addition to the functions defined in TS 23.501 [4] and TS 23.503 [9], the PCF includes functions to provision the UE with necessary policies and parameters to use 5G ProSe services, as part of the UE ProSe Policy information as defined in TS 23.503 [9] clause 4.2.2:
- PC5 usage reporting configuration.
- Authoriza... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.4 AMF
| In addition to the functions defined in TS 23.501 [4], the AMF performs the following functions:
- Select a PCF supporting 5G ProSe Policy/Parameter provisioning based on indication of 5G ProSe Capability as part of the "5GMM capability" in the Registration Request.
- Store the 5G ProSe Capability.
- Forward the 5G ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.5 UDM
| In addition to the functions defined in TS 23.501 [4], the UDM performs the following functions:
- Subscription management for 5G ProSe Direct Discovery and Communication.
- Subscription management for 5G ProSe UE-to-Network Relay Discovery and Communication.
- Subscription management for multi-path communication vi... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.6 UDR
| In addition to the functions defined in TS 23.501 [4], the UDR performs the following functions:
- Stores a path preference for ProSe services provided by the AF.
- Stores ProSe service parameters.
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.7 NRF
| In addition to the functions defined in TS 23.501 [4], the NRF performs the following functions:
- PCF discovery by considering 5G ProSe Capability.
- 5G DDNMF Discovery.
Similar procedure can be used for 5G DDNMF discovery across PLMNs as specified in clause 4.17.5 of TS 23.502 [5] with the difference as below:
- ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.8 ProSe Application Server
| The ProSe Application Server supports the following functionalities.
For 5G ProSe Direct Discovery:
- Maintains permission information for the restricted 5G ProSe Direct Discovery using RPAUIDs;
- Storage of ProSe Discovery UE IDs and metadata;
- Mapping of RPAUID and PDUID for restricted 5G ProSe Direct Discovery;... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.9 5G ProSe UE-to-Network Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.9.1 General
| Both 5G ProSe Layer-2 and Layer-3 UE-to-Network Relay entity provides the relaying functionality to support connectivity to the network for 5G ProSe Remote UEs. It can be used for both public safety services and commercial services (e.g. interactive service).
Both 5G ProSe Layer-2 and Layer-3 UE-to-Network Relay suppo... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.9.2 5G ProSe Layer-3 UE-to-Network Relay
| In addition to the common 5G ProSe UE-to-Network Relay functions defined in clause 4.3.9.1, 5G ProSe Layer-3 UE-to-Network Relay supports the following functions to enable connectivity to the network:
- 5G ProSe Direct Communication via 5G ProSe Layer-3 UE-to-Network Relay as specified in clause 6.5.1, for the communi... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.9.3 5G ProSe Layer-2 UE-to-Network Relay
| In addition to the common 5G ProSe UE-to-Network Relay functions defined in clause 4.3.9.1, 5G ProSe Layer-2 UE-to-Network Relay supports the following functions to enable connectivity to the network:
- 5G ProSe Direct Communication via 5G ProSe Layer-2 UE-to-Network Relay as specified in clause 6.5.2, for the communi... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.10 SMF
| In addition to the functions defined in TS 23.501 [4], the SMF supports the following function:
- Receiving 5G ProSe Layer-3 Remote UE report and maintaining the information of 5G ProSe Layer-3 Remote UE(s) handled by a 5G ProSe Layer-3 UE-to-Network Relay in the 5G ProSe Layer-3 UE-to-Network Relay's SM context for t... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.11 NEF
| In addition to the functions defined in TS 23.501 [4], the NEF supports the following:
- To enable AFs to provide service specific information to the 3GPP network, the NEF supports additional service parameters for ProSe policy as specified in clause 6.2.5.
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.12 5G ProSe UE-to-UE Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.12.1 General
| Both 5G ProSe Layer-2 and Layer-3 UE-to-UE Relay provides the relaying functionality to support connectivity between 5G ProSe End UEs. 5G ProSe UE-to-UE Relay can be used for both public safety services and commercial services (e.g. interactive service).
Both 5G ProSe Layer-2 and Layer-3 UE-to-UE Relay supports the fo... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.12.2 5G ProSe Layer-3 UE-to-UE Relay
| In addition to the common 5G ProSe UE-to-UE Relay functionality defined in clause 4.3.12.1, a 5G ProSe Layer-3 UE-to-UE Relay supports the following functions:
- 5G ProSe Direct Communication via 5G ProSe Layer-3 UE-to-UE Relay as specified in clause 6.7.1, for the communication between 5G ProSe Layer-3 End UEs for re... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.12.3 5G ProSe Layer-2 UE-to-UE Relay
| In addition to the common 5G ProSe UE-to-UE Relay functions defined in clause 4.3.12.1, 5G ProSe Layer-2 UE-to-UE Relay supports the following functions:
- 5G ProSe Direct Communication via 5G ProSe Layer-2 UE-to-UE Relay as specified in clause 6.7.2, for the communication between 5G ProSe Layer-2 End UEs for relay op... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 4.3.13 5G ProSe Intermediate UE-to-Network Relay
| The 5G ProSe Intermediate UE-to-Network Relay entity provides the relaying functionality to support multi-hop connectivity between the 5G ProSe Remote UEs and the 5G ProSe UE-to-Network Relay. It can be used for both public safety services and commercial services (e.g. interactive service). There can be more than one 5... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5 High level functionality and features
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1 Authorization and Provisioning for ProSe service
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.1 General
| In 5GS, the parameters for 5G ProSe Direct Discovery, 5G ProSe Direct Communication, 5G ProSe UE-to-Network Relay, 5G ProSe UE-to-UE Relay, 5G ProSe Multi-hop UE-to-Network Relay and 5G ProSe Layer-3 Multi-hop UE-to-UE Relay services may be made available to the UE in following ways:
- provisioned in the ME; or
- con... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.2 Authorization and Provisioning for 5G ProSe Direct Discovery
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.2.1 Policy/Parameter provisioning for 5G ProSe Direct Discovery
| The following sets of information for 5G ProSe Direct Discovery over PC5 reference point is provisioned to the UE:
1) Authorization policy for 5G ProSe Direct Discovery:
- When the UE is "served by NG-RAN":
- For open 5G ProSe Direct Discovery:
a) open 5G ProSe Direct Discovery Model A monitoring authorization poli... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.2.2 Principles for applying parameters for 5G ProSe Direct Discovery
| The general principles for applying policy/parameters defined in clause 5.1.1a apply to the 5G ProSe Direct Discovery service.
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.3 Authorization and Provisioning for 5G ProSe Direct Communication
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.3.1 Policy/Parameter provisioning for 5G ProSe Direct Communication
| The following sets of information for 5G ProSe Direct Communications over PC5 reference point is provisioned to the UE:
1) Authorization policy:
- When the UE is "served by NG-RAN":
- PLMNs in which the UE is authorized to perform 5G ProSe Direct Communications over PC5 reference point when "served by NG-RAN".
- Wh... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.3.2 Principles for applying parameters for 5G ProSe Direct Communication
| The general principles for applying policy/parameters defined in clause 5.1.1a apply to the 5G ProSe Direct Communication service.
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4 Authorization and Provisioning for 5G ProSe UE-to-Network Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.1 Policy/Parameter provisioning for 5G ProSe UE-to-Network Relay
| The following information is provisioned in the UE in support of the UE assuming the role of a 5G ProSe UE-to-Network Relay:
1) Authorisation policy for acting as a 5G ProSe Layer-3 and/or Layer-2 UE-to-Network Relay when "served by NG-RAN":
- PLMNs in which the UE is authorized to relay traffic for 5G ProSe Layer-3 ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.2 Principles for applying parameters for 5G ProSe UE-to-Network Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.2.1 Principles for applying parameters for ProSe UE-to-Network Relay discovery
| The general principles for applying policy/parameters defined in clause 5.1.1a apply to the 5G ProSe UE-to-Network Relay discovery service.
5.1.4.2.1a Principles for applying parameters for 5G ProSe Multi-hop UE-to-Network Relay discovery
The general principles for applying policy/parameters defined in clause 5.1.1a ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.2.2 Principles for applying parameters for 5G ProSe UE-to-Network Relay communication
| The general principles for applying policy/parameters defined in clause 5.1.1a apply to the 5G ProSe UE-to-Network Relay communication service.
5.1.4.2.2a Principles for applying parameters for 5G ProSe Multi-hop UE-to-Network Relay communication
The general principles for applying policy/parameters defined in clause... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.3 Network controlled security procedures for 5G ProSe UE-to-Network Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.3.1 General
| Security procedures over Control Plane and User Plane are specified for 5G ProSe UE-to-Network relaying in TS 33.503 [29].
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.3.2 Control Plane based security procedures for 5G ProSe UE-to-Network Relay
| Control Plane-based security procedures for 5G ProSe UE-to-Network Relay call flow and procedure are defined in TS 33.503 [29], characterised by the following principles:
- 5G ProSe UE-to-Network Relay's NAS signalling is used for the control plane based security procedure to authenticate and authorize a 5G ProSe Remo... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.4.3.3 User Plane based security procedures
| User Plane-based security procedures for 5G ProSe UE-to-Network Relay are defined in TS 33.503 [29].
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.5 Authorization and Provisioning for 5G ProSe UE-to-UE Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.5.1 Policy/Parameter provisioning for 5G ProSe UE-to-UE Relay
| The following information is provisioned in the UE in support of the UE assuming the role of a 5G ProSe UE-to-UE Relay:
1) Authorisation policy for acting as a 5G ProSe Layer-3 and/or Layer-2 UE-to-UE Relay:
- when the UE is "served by NG-RAN":
- PLMNs in which the UE is authorized to relay traffic for 5G ProSe Laye... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.5.2 Principles for applying parameters for 5G ProSe UE-to-UE Relay
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.5.2.1 Principles for applying parameters for ProSe UE-to-UE Relay discovery
| The general principles for applying policy/parameters defined in clause 5.1.1a apply to the 5G ProSe UE-to-UE Relay discovery service.
5.1.5.2.1a Principles for applying parameters for 5G ProSe Layer-3 Multi-hop UE-to-UE Relay discovery
The general principles for applying policy/parameters defined in clause 5.1.1a ap... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.1.5.2.2 Principles for applying parameters for 5G ProSe UE-to-UE Relay communication
| The general principles for applying policy/parameters defined in clause 5.1.1a apply to the 5G ProSe UE-to-UE Relay communication service.
5.1.5.2.2a Principles for applying parameters for 5G ProSe Layer-3 Multi-hop UE-to-UE Relay communication
The general principles for applying policy/parameters defined in clause 5... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2 5G ProSe Direct Discovery
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4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.1 General
| 5G ProSe Direct Discovery is defined as the process that detects and identifies another UE in proximity via NR PC5 reference point. As defined in clause 5.3.1.1 in TS 23.303 [3], 5G ProSe Direct Discovery can be open or restricted; it can be standalone or used for subsequent actions e.g. to initiate 5G ProSe Direct Com... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.2 5G ProSe Direct Discovery Models
| There are two models for 5G ProSe Direct Discovery: Model A and Model B which are defined in clause 5.3.1.2 in TS 23.303 [3].
|
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.3 5G ProSe UE-to-Network Relay Discovery
| For 5G ProSe UE-to-Network Relay discovery, both Model A and Model B discovery are supported:
- Model A uses a single discovery protocol message (Announcement).
- Model B uses two discovery protocol messages (Solicitation and Response).
For Relay Discovery Additional Information, only Model A discovery is used.
The... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.4 5G ProSe Direct Discovery Characteristics
| 5G ProSe Direct Discovery over the PC5 reference point has the following characteristics:
- PC5 communication channel is used to carry the discovery message over PC5. The discovery message over PC5 is differentiated with other PC5 messages by AS layer.
- ProSe layer shall indicate to AS layer whether the signalling i... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.5 5G ProSe UE-to-UE Relay Discovery
| For 5G ProSe UE-to-UE Relay Discovery, both Model A and Model B discovery are supported:
- Model A uses a single discovery protocol message (Announcement).
- Model B uses two discovery protocol messages (Solicitation and Response).
The procedures for 5G ProSe UE-to-UE Relay Discovery with Model A/Model B are defined... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.6 5G ProSe Multi-hop UE-to-Network Relay Discovery
| For 5G ProSe Multi-hop UE-to-Network Relay discovery, both Model A and Model B discovery are supported.
The procedures for 5G ProSe Multi-hop UE-to-Network Relay discovery Model A are defined in clause 6.3.2.5.2.
The procedures for 5G ProSe Multi-hop UE-to-Network Relay discovery Model B are defined in clause 6.3.2.5... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.2.7 5G ProSe Multi-hop UE-to-UE Relay Discovery
| For 5G ProSe Multi-hop UE-to-UE Relay discovery, both Model A and Model B discovery are supported:
- Model A uses a single discovery protocol message (Announcement).
- Model B uses two discovery protocol messages (Solicitation and Response).
Based on the RSC used for the discovery, the 5G ProSe Multi-hop UE-to-UE Re... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.3 5G ProSe Direct Communication
| |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.3.1 General
| 5G ProSe Direct Communication over PC5 reference point is supported when the UE is "served by NG-RAN" or when the UE is "not served by NG-RAN". A UE is authorized to perform 5G ProSe Direct Communication when it has valid authorization and configuration as specified in clause 5.1.3. 5G ProSe Direct Communication suppor... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.3.2 Broadcast mode 5G ProSe Direct Communication
| Broadcast mode of 5G ProSe direct communication is supported over NR based PC5 reference point. The transmitting UE in broadcast communication determines the destination Layer-2 ID for broadcast as specified in clause 5.8.2 and assigns itself a source Layer-2 ID. The receiving UE determines the destination Layer-2 ID f... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.3.3 Groupcast mode 5G ProSe Direct Communication
| Groupcast mode of 5G ProSe direct communication is supported over NR based PC5 reference point. Group management is carried out by the application layer in coordination with Application Server and is out of scope of this specification. For commercial services, the Application Layer Group ID is provided by Application S... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.3.4 Unicast mode 5G ProSe Direct Communication
| Unicast mode of 5G ProSe direct communication is supported over NR based PC5 reference point. A PC5 unicast link between two UEs is established for the 5G ProSe direct communication; and the PC5 unicast link could be maintained, modified and released according to the application layer requests or communication requirem... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4 5G ProSe UE-to-Network Relay
| |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.1 5G ProSe Layer-3 UE-to-Network Relay
| |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.1.1 General
| The 5G ProSe Layer-3 UE-to-Network Relay shall provide generic function that can relay any IP, Ethernet or Unstructured traffic:
- For IP traffic over PC5 reference point, the 5G ProSe Layer-3 UE-to-Network Relay uses IP type PDU Session towards 5GC.
- For Ethernet traffic over PC5 reference point, the 5G ProSe Layer... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.1.2 5G ProSe Layer-3 UE-to-Network Relay with N3IWF support
| To support 5G ProSe Layer-3 Remote UE services with end-to-end confidentiality and IP address preservation requirements, the 5G ProSe Layer-3 UE-to-Network Relay with N3IWF shall provide access to the 5GC for the 5G ProSe Layer-3 Remote UE via N3IWF using the features defined in clause 4.2.8 of TS 23.501 [4].
5G ProSe... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.1.3 Policy control and session binding to support 5G ProSe Layer-3 UE-to-Network Relay without N3IWF
| To enable support for policy control for 5G ProSe Layer-3 Remote UEs accessing 5GC via a 5G ProSe Layer-3 UE-to-Network Relay without involving N3IWF, the policy control functionality specified in TS 23.503 [9] is applied with the following functionalities:
- For non-emergency service over the 5G ProSe Layer-3 UE-to-N... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.2 5G ProSe Layer-2 UE-to-Network Relay
| The 5G ProSe Layer-2 UE-to-Network Relay provides forwarding functionality that can relay any type of traffic over the PC5 link.
The 5G ProSe Layer-2 UE-to-Network Relay provides the functionality to support connectivity to the 5GS for 5G ProSe Layer-2 Remote UEs. A UE is considered to be a 5G ProSe Layer-2 Remote UE ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.3 Mobility Restrictions for 5G ProSe UE-to-Network Relaying
| The handling of Mobility Restrictions for 5G ProSe enabled UE follows the principles as specified in clause 5.3.4.1 of TS 23.501 [4] with the following additions and clarifications:
- Forbidden Area:
- In a Forbidden Area, a 5G ProSe enabled UE is not allowed to perform the Relay operation. If the 5G ProSe UE-to-Netw... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.4 Support of emergency service from 5G ProSe Remote UE via 5G ProSe UE-to-Network Relay
| |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.4.1 General
| When a 5G ProSe enabled UE does not have direct connection to the network for emergency service, the UE may attempt to obtain emergency service via 5G ProSe Layer-2 or Layer-3 UE-to-Network Relay.
NOTE: Direct connection refers to the UE connected to the network via Uu or WLAN. No direct connection to the network for ... |
4d761cc8095b5982244110685dcb04f8 | 23.304 | 5.4.4.2 Emergency service from 5G ProSe Remote UE via 5G ProSe Layer-2 UE-to-Network Relay
| For a 5G ProSe Layer-2 UE-to-Network Relay to participate in the 5G ProSe UE-to-Network Relay Discovery procedure for emergency service (i.e. sending the UE-to-Network Relay Discovery Announcement message or UE-to-Network Relay Discovery Response message), the serving NG-RAN support of emergency services is required, i... |
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