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.

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.

Fine grained access barring of aggressive cellular devices is provided. A method can include detecting, by a system comprising a processor, a frequency of signaling events transmitted by network equipment operating as part of a communication network; in response to the frequency of the signaling events transmitted by the network equipment being determined to be greater than a frequency threshold, altering, by the system, an access class of the network equipment from a first access class to a second access class that is different from the first access class, wherein the second access class is reserved via the communication network; and in response to the access class of the network equipment being altered to the second access class, causing, by the system, a base station serving the network equipment to deny at least a portion of network access requests transmitted by the network equipment to the base station.

Fine grained access barring of aggressive cellular devices is provided. A method can include detecting, by a system comprising a processor, a frequency of signaling events transmitted by network equipment operating as part of a communication network; in response to the frequency of the signaling events transmitted by the network equipment being determined to be greater than a frequency threshold, altering, by the system, an access class of the network equipment from a first access class to a second access class that is different from the first access class, wherein the second access class is reserved via the communication network; and in response to the access class of the network equipment being altered to the second access class, causing, by the system, a base station serving the network equipment to deny at least a portion of network access requests transmitted by the network equipment to the base station.

A method for signalling congestion avoidance based on Non-Access Stratum (NAS) level congestion control in a mobile network includes activating or starting a group specific NAS level congestion control mechanism that applies to a group of terminals; receiving at a serving node of a terminal of the group of terminals an NAS Session Management (SM) request message from the terminal related to a particular access point name (APN); and transmitting from the serving node of the terminal to the terminal one or more NAS reject messages that indicate suppression or prevention of NAS SM signalling of the terminal that is related either to all APNs to which the terminal has established or activated IP bearers or to all APNs to which the terminal has a subscription.

A method for signalling congestion avoidance based on Non-Access Stratum (NAS) level congestion control in a mobile network includes activating or starting a group specific NAS level congestion control mechanism that applies to a group of terminals; receiving at a serving node of a terminal of the group of terminals an NAS Session Management (SM) request message from the terminal related to a particular access point name (APN); and transmitting from the serving node of the terminal to the terminal one or more NAS reject messages that indicate suppression or prevention of NAS SM signalling of the terminal that is related either to all APNs to which the terminal has established or activated IP bearers or to all APNs to which the terminal has a subscription.

Embodiments of the present invention provide a service processing method, a related apparatus, and a system. The method includes: UE adds a service type indication of a service initiated by the UE to an RRC connection request and sends the RRC connection request to a base station, and adds the service type indication of the service initiated by the UE to a non-access stratum NAS request and sends the NAS request to a mobility management network element. In this way, when a network side performs congestion control or overload control, the base station may determine, according to the service type indication, that the service initiated by the UE is a voice service, a video service, or a short message service, accept the RRC connection request. Similarly, the mobility management network element may accept, according to the service type indication, the NAS request.

A mobility management switching center is for communicating with user equipment of a communication system that supports LTE or 3G, the mobility management switching center including a receiver that receives a session management signal from the user equipment; and a transmitter that transmits, when the session management signal is received, a restriction signal for instructing not to transmit a new session management signal to the user equipment.

A mobility management switching center is for communicating with user equipment of a communication system that supports LTE or 3G, the mobility management switching center including a receiver that receives a session management signal from the user equipment; and a transmitter that transmits, when the session management signal is received, a restriction signal for instructing not to transmit a new session management signal to the user equipment.

A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.