Cisco ASR 5000 Series Administration Manual page 35

3g home nodeb gateway

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HNB Gateway in UMTS Network

4. On reception of successful RANAP Iu Release Complete command in RUA-DISCONNECT Response message

from HNB, the HNB-GW sends RANAP Iu Release Complete command in SCCP-DATA-FORM1 Response

message to CN (SGSN/MSC).

5. On reception of RANAP Iu Release Complete command in SCCP-DATA-FORM1 Response message from

HNB-GW, CN sends SCCP-RELEASED message to HNB-GW and triggers the associated SCCP connection.

6. On reception of SCCP-RELEASED message from CN, the HNB-GW sends RUA-DISCONNECT message to

HNB and disconnect the Iuh connection with HNB.

7. After successful completion of RUA-DISCONNECT procedure and Iuh connection release, HNB-GW sends

SCCP-RELEASE-COMPLETE message to CN and HNB-GW confirms the Iu-PS/CS connection released

between HNB-GW and CN.

OL-22991-01

Cisco ASR 5000 Series 3G Home NodeB Gateway Administration Guide ▄

How HNB-GW Works ▀

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