C.1 Identifiers for MSs and generic IP access network

3GPP43.318Generic Access Network (GAN)Release 17Stage 2TS

The following are the key MS and generic IP access network addressing parameters.

1. The IMSI associated with the (U)SIM in the terminal.

– The MS provide the IMSI to the GANC during the Registration procedure. The GANC maintains a record for each registered MS. For example, IMSI is used by the GANC to index the appropriate MS record when the GANC receives a BSSMAP PAGING message.

2. Public IP Address of the MS.

– The Public IP address of MS is the source IP present in the outermost IP header of packets received from the MS by the GANC-SEGW. If available, this identifier may be used by the GANC to support location services and fraud detection or by service providers to signal Managed IP networks IP flows that require special QoS treatment.

3. The generic IP access network point of attachment address (AP-ID).

– The MS provides the AP-ID to the GANC at Registration. The AP-ID may be used by the GANC to support location services or by the service provider to restrict GAN access to authorized APs.