Page 404 - 5G Basics - Core Network Aspects

1 Core network aspects

1) Provide a QoS policy to meet the equivalent quality requirement of eMMTel service.

2) Provide an access network selection policy for data sending and receiving.
3) Provide a service transfer policy to transfer eMMTel service between multiple accesses.
4) Provide minimization of service degradation among multi-connections when QoS mapping among
different access networks is needed.
5) Provide secure storage, handling and enforcement of an operator's and user's multi-connection
policies to the UE.

6) Acquire eMMTel service information from the SCF.
7) Receive and authorize the QoS resource request from the SCF.
8) Provide acquisition of subscription profile from the MUP-FE.
9) Make policy decisions and send their results to the MC-FE/AC-FE.

8.3.3 MR-FE
The following requirements are required for the MR-FE to support eMMTel:
1) Establish, release and modify all connections.

2) Manage all connections, and provide unified control to support the multi-connection use cases, e.g.,
load balance.

3) Bind each MUE with all available access IDs (such as IP address, MSISDN, etc.).
4) Share/push/update the latest access information to the MUE.
5) Reduce faked connection registrations.
6) Allocate and maintain MUE identifiers.

8.3.4 MUP-FE
The following requirements are required for the MUP-FE to support eMMTel:
1) Maintain all MUE related subscription information (e.g., allowed services, allowed QoS, subscription
and charging information, authentication and authorization information, location information,
presence information, etc.).
2) Provide information for the MPC-FE to make policy decisions.
3) Provide information for the MR-FE to perform registration management.
4) Provide a response to query user profiles.
5) Provide data confidentiality, which contains users' profile information for each connection, e.g.,
preferences, profiles, presence, availability and location information.

8.4 Requirement for MMF

The following requirements are required for the MMF to support eMMTel:
1) Provide multi-connection coordination, e.g., for voice applications in the CS network and data
applications in the PS network. The separation of CS and PS traffic types shall be able to operate
concurrently.
2) Provide service continuity during eMMTel service transfers.
3) Provide the application with a combined QoS, at least as good as the QoS of any individual access
technology.
4) Provide QoS mapping among different access networks.

5) Classify IP flows, and thereafter their identification and bind them to the proper connections.
6) Collect dynamic traffic load information and report it to the MC-FE.
7) Maintain the mapping of resource identifiers, including flow ID, access network ID, interface ID and
others.

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