Patent ID: 8194650

Claim:
A method for establishing connections in internet protocol (IP) flow mapping update in a high rate packet data network, comprising steps of: (1) when a packet control function (PCF) receives a request for establishing all A8 connections that need to be re-mapped sent by an access network (AN), if determining that there is at least one A8 connection supported by the PCF, sending an A11-registration request message to a packet data service node (PDSN), the A11-registration request message carrying information about A10 connections corresponding to the A8 connections supported by the PCF; (2) when the PDSN obtains the information about all the A10 connections in the A11-registration request message, if determining that there is at least one A10 connection supported by the PDSN, establishing those A10 connections and sending an A11-registration reply message carrying information about the established A10 connections to the PCF; (3) when the PCF receives the A11-registration reply message, establishing all the A8 connections corresponding to the A10 connections in the A11-registration reply message, and sending an A9-connect-A8 message carrying information about the established A8 connections to the AN; and (4) an access terminal (AT) and the AN releasing and removing the IP flow that can not be mapped to any of the A8 connections or resource reserved by the IP flow according to the A9-connect-A8 message received.