| 摘要 |
The present invention faces the issue of coordinating more than one TDF session for a user in PCC architecture. To this end, there are provided PCRF server, PCEF device, TDF devices and method of coordinating a PCEF session and the more than one TDF session, the method comprising: establishing or modifying at a PCRF server a PCEF session for an IP-CAN session; selecting at the PCRF server more than one TDF device; determining at the PCRF server an order in which each selected TDF device is to be involved, and access information required by each selected TDF device; initiating a TDF session, providing applicable ADC rules and routing information indicating a next TDF device to be involved, from the PCRF server towards each selected TDF device; and submitting from the PCRF server to the PCEF device PCC rules for the IP-CAN session along with routing information indicating a first TDF device to be involved. |
