Patent ID: 8724584

Claim:
A virtual connection releasing method in an inter-operation network, wherein the inter-operation network is between an Enhanced Universal Terrestrial Radio Access Network (E-UTRAN) and an evolved High Rate Package Data (eHRPD) access network, the method comprising: setting a PMIP indication for indicating whether a HRPD Serving Gateway (HSGW) needs to initiate a Proxy Mobile IP (PMIP) binding updating operation; and when a virtual connection releasing is initiated, an evolved Access Network (eAN) sends to an evolved Packet Control Function (ePCF) a A 9 -releasing-A 8 message carrying the PMIP indication; and after obtaining the PMIP indication through the ePCF, the HRPD Serving Gateway determines whether to initiate the PMIP binding updating operation according to the PMIP indication, wherein the step of setting PMIP indication comprises: adding a new message unit, a new field or a new domain in the A 9 -releasing-A 8 message as the PMIP indication; or the step of setting PMIP indication comprises: setting a reserved value in an existing message unit, or an existing field, or an existing domain in the A 9 -releasing-A 8 message as the PMIP indication.