5.12 Fixed Broadband Access network Interworking

25.4673GPPRelease 17Stage 2TSUTRAN architecture for 3G Home Node B (HNB)

Case of CS sessions:

The HNB signals the Tunnel Information to the HNB GW via the HNB Registration procedure. The Tunnel Information includes HNB IP address and the UDP port number if NAT/NAPT is detected. The HNB-GW establishes and manages the S15 session by the tunnel information and RAB information as specified in TS 23.139 [36].

Case of PS sessions:

The HNB signals the Tunnel Information to the SGSN via INITIAL UE MESSAGE message, RELOCATION COMPLETE message, and ENHANCED RELOCATION COMPLETE REQUEST message. The Tunnel Information includes HNB IP address and the UDP port number if NAT/NAPT is detected.