Content for TS 23.280 Word version: 18.4.0

1… 5… 6 7… 7.3.2 7.4… 7.5… 8… 9… 9.2.2… 9.2.2.2… 9.3… 10… 10.1.2… 10.1.3… 10.1.4.3… 10.1.4.5… 10.1.5… 10.1.6… 10.2… 10.2.3… 10.2.4.2… 10.2.4.3… 10.2.5… 10.2.7… 10.3… 10.6… 10.7… 10.7.3… 10.7.3.4… 10.7.3.7… 10.7.3.7.3 10.7.3.8… 10.7.3.10… 10.8… 10.8.4… 10.8.5 10.9… 10.9.3… 10.9.3.5… 10.9.3.8 10.9.3.9… 10.9.3.9.3 10.9.3.9.4 10.9.3.10… 10.9.3.10.4… 10.9.3.10.6… 10.10… 10.10.1.2.3… 10.10.2… 10.11… 10.11.5… 10.12… 10.13… 10.13.3… 10.13.7… 10.13.10… 10.14… 10.15… 10.15.3… 10.15.3.3 10.15.3.4 10.16… 10.16.3… 11… 11.5… 11.5.2… 11.5.3… 11.5.3.3.2A… 11.5.4… A… B… C…

9.1 General 9.2 Architecture model and deployment scenarios for on-network operations 9.2.1 On-network architectural model 9.2.1.1 On-network architectural model diagram 9.2.1.2 Application services layer 9.2.1.3 SIP core 9.2.1.4 EPS 9.2.1.5 UE 1 9.2.1.6 UE 2
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9 Application of functional model to deployments p. 55

9.1 General p. 55

This clause describes the application of the functional model, described in clause 7, to on-network and off-network deployments. It also describes deployment scenarios that highlight some of the possible variations in the way that the functional model can be applied in different situations.

9.2 Architecture model and deployment scenarios for on-network operations p. 55

9.2.1 On-network architectural model p. 55

9.2.1.1 On-network architectural model diagram p. 55

Figure 9.2.1.1-1 below is the on-network architectural model for the MC system solution, where the MC system provides one or more MC services via a single PLMN.

Reproduction of 3GPP TS 23.280, Fig. 9.2.1.1-1: On-network architectural model

Figure 9.2.1.1-1: On-network architectural model

9.2.1.2 Application services layer p. 56

9.2.1.2.1 Overview p. 56

The application services layer includes application functions of one or more MC services and any required supporting functions grouped into common services core.

9.2.1.2.2 Common services core p. 56

Common services core is composed of the following functional entities:

for common services, a configuration management server as described in subclause 7.4.2.2.2, a group management server as described in subclause 7.4.2.2.4, an identity management server as described in subclause 7.4.2.2.6 and a key management server as described in subclause 7.4.2.2.8; and
for signalling control, an HTTP proxy as described in subclause 7.4.3.3.2 and an HTTP server as described in subclause 7.4.3.3.3.

9.2.1.2.3 MC services p. 56

MC services are composed of the following functional entities:

an MC service server as described in subclause 7.4.2.3.2 with relevant application functions of the corresponding MC service defined in the corresponding MC service TS.

9.2.1.3 SIP core p. 57

The SIP core provides rendezvous (contact address binding and URI resolution) and service control (application service selection) functions. It is composed of the following functional entities:

for signalling control, a local inbound / outbound proxy as described in subclause 7.4.3.1.3.2, a registrar finder as described in subclause 7.4.3.1.3.3 and a registrar / application service selection entity as described in subclause 7.4.3.1.3.4.

9.2.1.4 EPS p. 57

The EPS provides point-to-point and point-to-multipoint bearer services with QoS.

9.2.1.5 UE 1 p. 57

UE 1 is:

an MC service UE in on-network mode supporting bearer services and application(s) related to one or more MC service;
an MC service UE that acts as ProSe UE-to-network relay; or
both of the above.

When acting as an MC service UE in on-network mode supporting bearer services and application(s) related to one or more MC services, UE 1 is composed of the same functional entities as for UE 2, as described in subclause 9.2.1.6, without the support of ProSe capabilities.

9.2.1.6 UE 2 p. 57

UE 2 is a device using ProSe UE-to-network relay, and supporting application(s) related to one or more MC services. It is composed of the following functional entities:

for common services, a group management client as described in subclause 7.4.2.2.3, a configuration management client as described in subclause 7.4.2.2.1, an identity management client as described in subclause 7.4.2.2.5 and a key management client as described in subclause 7.4.2.2.7;
for MC services, MC service clients as described in subclause 7.4.2.3.1 with relevant application functions of the corresponding MC service defined in the corresponding MC service TS; and
for signalling control, a signalling user agent as described in subclause 7.4.3.1.1 and an HTTP client as described in subclause 7.4.3.3.1.