In order to address the problem of allowing a GGSN 16 of a UMTS core network to work towards multiple Policy Control Functions (PCFs) 17 co-located with P-CSCF nodes 18 using the COPS protocol, a policy control function coordinator (PCF-C) 15 is implemented between the GGSN 16 and the P-CSCF 18. A single COPS connection is established between the GGSN 16 and the PCF-C 15, whilst a COPS connection is established between the PCF-C 15 and each of the P-CSCF nodes 18. Decisions made at the PCFs 17 are routed to the GGSN 16 via the PCF-C 17, and responses generated at the GGSN 16 are routed to the appropriate PCFs 17 via the GGSN 17. This architecture avoids conflicts which might otherwise arise with the COPS protocol.
申请公布号
WO03047162(A2)
申请公布日期
2003.06.05
申请号
WO2001IB02796
申请日期
2001.11.28
申请人
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL);WILLIAMS, BRIAN;GRAF, LESLIE;HOLLIS, MARK;RYTINA, IAN
发明人
WILLIAMS, BRIAN;GRAF, LESLIE;HOLLIS, MARK;RYTINA, IAN