A method for controlling a data transmission state by a terminal in a wireless communication system may comprise: transmitting capability configuration information of the terminal to a node of a network; applying a triggered communication environment configuration on the basis of the capability configuration information from the node; transmitting, to the node, first connection configuration information related to a wireless local area network (WLAN) connection configuration; and applying a first communication environment reconfiguration triggered from the node on the basis of the first connection configuration information, wherein the capability configuration information includes LWA function permission information of the terminal.

The invention provides a method performed by a home public land mobile network, PLMN, of controlling access of a user equipment, UE, device to a non-home PLMN when the UE device has an access to a non-trusted network and thereby a connection with the home PLMN via an interworking function entity, the method comprising in the event of the UE device requesting an attachment to the non-home PLMN, making in the home PLMN a decision as to whether control of the UE device should be handed over to the non-home PLMN; and communicating the decision to the non-home PLMN.

The invention provides a method performed by a home public land mobile network, PLMN, of controlling access of a user equipment, UE, device to a non-home PLMN when the UE device has an access to a non-trusted network and thereby a connection with the home PLMN via an interworking function entity, the method comprising in the event of the UE device requesting an attachment to the non-home PLMN, making in the home PLMN a decision as to whether control of the UE device should be handed over to the non-home PLMN; and communicating the decision to the non-home PLMN.

A method of operating a network server, such as a mobile application gateway, connect devices on a cellular or carrier network with individual networks, such as enterprise voice and data networks or residential networks. The effects of the present invention are far reaching in terms of transferring effective call control from the cellular network into the control of the individual network, such as the enterprise, and enabling new business models for the purchase of cellular service from a public cellular carrier by an enterprise.

The present invention discloses a mobility management method, a serving GPRS support node or mobility management entity (SGSN/MME), and a terminal to solve the problem of setting or dynamically modifying the mobility management frequency of a particular terminal among numerous terminals. The technical solution of the present invention includes: obtaining subscription data of a terminal, where the subscription data carries periodic update (RAU/TAU) setting information; obtaining a periodic update timer of the terminal according to the periodic update setting information; sending the periodic update timer of the terminal to the terminal; and setting a value that is a little longer than the periodic update timer of the terminal as a mobile reachable timer for monitoring the periodic update of the terminal. The embodiments of the present invention may be applied in low-mobility machine-type communication.

A roaming device sends, through a visited network and a proxy network, to a home network, an identifier for a first subscription. The home network sends, through the proxy network, to the visited network, data relating to the first subscription. The proxy network sends to the home network a first temporary address. The visited network sends to the proxy network a second temporary address. The device activates a second subscription. The device sends, through the visited network and the proxy network, to the roaming provider network, an identifier for the second subscription. The roaming provider network sends, through the proxy network, to the visited network, data relating to the second subscription. The proxy network registers the first subscription identifier, the second subscription identifier, the first temporary address and the second temporary address. The proxy network sends to the roaming provider network the first temporary address.

A roaming device sends, through a visited network and a proxy network, to a home network, an identifier for a first subscription. The home network sends, through the proxy network, to the visited network, data relating to the first subscription. The proxy network sends to the home network a first temporary address. The visited network sends to the proxy network a second temporary address. The device activates a second subscription. The device sends, through the visited network and the proxy network, to the roaming provider network, an identifier for the second subscription. The roaming provider network sends, through the proxy network, to the visited network, data relating to the second subscription. The proxy network registers the first subscription identifier, the second subscription identifier, the first temporary address and the second temporary address. The proxy network sends to the roaming provider network the first temporary address.

A network access method includes logging in to a shared server via a shared account, if a mobile communication terminal detects that a network identification of a public land mobile network (PLMN) of a visited place does not exist in a local memory; searching the shared network information in the shared server online via a network and acquiring the network identification of the PLMN of the visited place from the shared network information, after the shared server is logged in to; adding the network identification of the PLMN of the visited place to an EPLMN list by the mobile communication terminal; and accessing a network according to the EPLMN list.

A network access method includes logging in to a shared server via a shared account, if a mobile communication terminal detects that a network identification of a public land mobile network (PLMN) of a visited place does not exist in a local memory; searching the shared network information in the shared server online via a network and acquiring the network identification of the PLMN of the visited place from the shared network information, after the shared server is logged in to; adding the network identification of the PLMN of the visited place to an EPLMN list by the mobile communication terminal; and accessing a network according to the EPLMN list.

An information processing method is provided for a mobile terminal. The method includes obtaining a first identity identifier assigned to a terminal by a network side; in response to loading the first identity identifier and, from a plurality of identity identifiers of the terminal, determining a second identity identifier as an identity identifier of the terminal in a first operation state; obtaining, based on the second identity identifier, information used for registering and connecting with a second communication network; establishing a data connection between the first identity identifier and the first communication network; and on the data connection established between the first identity identifier and the first communication network, registering with the second communication network using the information for registering and connecting with the second communication network.