| 摘要 |
The present invention relates to communication field, the embodiments of the present invention disclose a method, apparatus and system for correlating sessions, to solve the problem that when an access network connects to a core network through security gateway evolved packet data gateway (ePDG), policy control sessions can not correlate with each other correctly. The method for correlating sessions in the embodiments of the present invention includes the following steps: receiving the first policy control session establishment request or the first policy control session update request which carries a user terminal local address; according to said user terminal local address, correlating said first policy control session and the second policy control session which corresponding to the first policy control session, and said local address is distributed by a non-3rd Generation Partnership Project (non-3GPP) access network. The solution provided by the embodiments of the present invention is applied to the communication network which performs network access through the non-3GPP access network. |
