A method for status transition, applied to a local IP access connection process of a wireless side network element or a H(e)NB gateway, comprising: sending, by the wireless side network element or the H(e)NB gateway, a paging message to a UE when downlink data of the local IP connection reaches the wireless side network element or a local gateway; wherein the wireless side network element comprises one of the followings: a base station, a H(e)NB and a radio network controller; the local gateway is co-located with the wireless side network element or the H(e)NB gateway; characterized in that the method further comprises: sending, by the wireless side network element or the H(e)NB gateway, an initial UE message to a mobility management entity after receiving a service request message as a paging response from the UE, and indicating that the service request message is valid in the initial UE message (S1002, S1004), wherein the initial UE message comprises the service request message; wherein the step of indicating that the service request message is valid comprises modifying service type IE of the service request message to indicate "data" which is taken as reason code, wherein the reason code represents UE has pending user data to be sent, or carrying reason code in the initial UE message, wherein the reason code represents that the service request message is a response message to the paging of the wireless side network element or the H(e)NB gateway. sending, by the wireless side network element or the H(e)NB gateway, a paging message to a UE when downlink data of the local IP connection reaches the wireless side network element or a local gateway; wherein the wireless side network element comprises one of the followings: a base station, a H(e)NB and a radio network controller; the local gateway is co-located with the wireless side network element or the H(e)NB gateway; characterized in that the method further comprises: sending, by the wireless side network element or the H(e)NB gateway, an initial UE message to a mobility management entity after receiving a service request message as a paging response from the UE, and indicating that the service request message is valid in the initial UE message (S1002, S1004), wherein the initial UE message comprises the service request message; wherein the step of indicating that the service request message is valid comprises modifying service type IE of the service request message to indicate "data" which is taken as reason code, wherein the reason code represents UE has pending user data to be sent, or carrying reason code in the initial UE message, wherein the reason code represents that the service request message is a response message to the paging of the wireless side network element or the H(e)NB gateway. sending, by the wireless side network element or the H(e)NB gateway, an initial UE message to a mobility management entity after receiving a service request message as a paging response from the UE, and indicating that the service request message is valid in the initial UE message (S1002, S1004), wherein the initial UE message comprises the service request message; wherein the step of indicating that the service request message is valid comprises modifying service type IE of the service request message to indicate "data" which is taken as reason code, wherein the reason code represents UE has pending user data to be sent, or carrying reason code in the initial UE message, wherein the reason code represents that the service request message is a response message to the paging of the wireless side network element or the H(e)NB gateway.