Page 302 - ITU-T Focus Group IMT-2020 Deliverables

5 ITU-T Focus Group IMT-2020 Deliverables

8.7.2 Requirements

IMT-2020 FMC is required to support more flexible and optimized multi-RAT interworking.
IMT-2020 FMC is required to support multi-RAT, WLAN and fixed broadband interworking.

8.8 Accounting and charging

8.8.1 Descriptions
IMT-2020 FMC is required to support the ability to collect accounting and charging related information from
different access networks, which are used by the charging/billing system to gather together relevant usage
data to initiate an unified bill to the specific user for multiple kinds of services with different terminal devices.
8.8.2 Requirements

IMT-2020 FMC is required to provide unified charging and accounting capabilities for multiple access
networks including mobile, WLAN, and fixed access networks.

8.9 Security
8.9.1 Descriptions

Security requirements such as access control, authentication, non-repudiation, data confidentiality,
communication security, data integrity, availability, and privacy are required to support services in FMC
network.

8.9.2 Requirements
IMT-2020 FMC is required to provide unified security mechanisms to meet service requirements.

Suggestions to SG13
The following issues should be studied further, but not limited to:

1. It is better to separate the FMC requirements from service perspective and ones from the network
evolution.
2. Mobility management related requirements needs to be addressed further.

3. FMC requirements should be aligned with high level requirements of IMT-2020 in SG13.

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