Patent ID: 8837326

Claim:
A session management method based on a Machine to Machine (M2M) application, the method comprising: acquiring gateway equipment information and group number information of a group user device; determining that group information of the group user device changes; instructing a gateway equipment to execute bearer change processing on the group user device according to the gateway equipment information and the group number information of the group user device; and executing the bearer change processing on the group user device; wherein the instructing comprises: sending, by a mobility management network element, a change request message to a serving gateway according to serving gateway information and packet data network gateway information and the group number information of the group user device, wherein the change request message sent by the mobility management network element comprises mobility management network element information, the packet data network gateway information and the group number information of the group user device; sending, by the serving gateway, a change request message to a packet data network gateway, wherein the change request message sent by the serving gateway comprises the serving gateway information, the mobility management network element information and the group number information of the group user device; and acquiring, by the packet data network gateway, the mobility management network element information, the serving gateway information, the packet data network gateway information and the group number information of the group user device according to the change request message sent by the serving gateway; and executing bearer change processing on a context of the group user device according to the acquired information.