A method and a system which enables a User Equipment (UE) in a Universal Mobile Telecommunications System (UTMS) to achieve fast dormancy in least possible time are provided. The method reduces the signalling burden on UE and Universal Terrestrial Radio Access Network (UTRAN) by eliminating the need of SCRI procedure by introducing cause value as ‘end of user data’ in Cell update cause Information element which can be used in cell update message in a Paging Channel (Cell_PCH) state and a UTRAN registration area (URA_PCH) states indicated to the network. The method reduces the time and signalling to transition the UE to an idle mode time and the method is energy efficient.

An electronic device that relays an IPv4 packet includes circuitry configured to process the IPv4 packet in each of a first mode operating as a router and a second mode operating as a bridge, set one of the first mode and the second mode as a mode of the electronic device, terminate an IPv4 over IPv6 tunnel, and perform a communication test through the IPv4 over IPv6 tunnel with respect to another electronic device, and the another electronic device is connected with the electronic device via the IPv4 over IPv6 tunnel and terminates the IPv4 over IPv6 tunnel, and set the first mode as the mode, when a result of the communication test shows that communication is available.

A first base station and a second base station, comprised in a wireless communication network, for managing a communication interface that is already set-up for communication between said base stations. The first base station determines to release said communication interface and sends, in response to the determination, a release message to the second base station. The release message commands the second base station to release the communication interface and comprises an indicator that indicates that it shall be avoided to attempt to again set up the communication interface and/or to set-up any further communication interface between the first base station and the second base station.

A method and an apparatus for controlling a wireless network connection are provided. The method includes detecting a signal strength in a connected wireless network, determining whether the detected signal strength is greater than a first threshold, if the detected signal strength is not greater than the first threshold determining whether an error occurs at least once in data transmission through the connected wireless network, and controlling a connection state of the connected wireless network according to a result of the error determination.

In some embodiments, a method comprises blocking mobile devices from establishing new connections to a cell, ending existent connections of mobile devices to the cell gradually based on a shutdown procedure, and locking the cell after the shutdown procedure. The shutdown procedure is configured according to pre-defined parameters that indicate to end the existent connections based on at least one of a priority level of existent connections or an activity level of existent connections.

There is provided a portable device (2) for wirelessly communicating with a remote further device (4). The portable device comprises a power source (6) chargeable by a power supply (8) separate from the portable device. The portable device is configured to have a plurality of coupling states associated with the power supply. The power supply is separate from the device and remote from the further device. The portable device also comprises communication apparatus (10) wirelessly connectable to the further device and configured to enable the portable device to have a wireless connection state associated with the further device. A processor (12) is configured to monitor a change between a first and a second of the said coupling states; and, output data for changing the connection state based upon the change from the first coupling state to the second coupling state.

A method and apparatus for handling evolved universal terrestrial radio access network (E-UTRAN) radio access bearer (E-RAB) switch failure for dual connectivity in a wireless communication system is provided. A master evolved NodeB (MeNB) in dual connectivity receives an E-RAB modification confirm message including a list of E-RABs failed to be modified from a mobility management entity (MME). The MeNB may keep old general packet ratio service (GPRS) tunneling protocol (GTP) tunnels for the failed E-RABs, and trigger a secondary eNB (SeNB) release procedure or a SeNB modification procedure for releasing the failed E-RABs. Alternatively, the MeNB may trigger an E-RAB release procedure for releasing the failed E-RABs.

A method and apparatus for establishing a Voice over LTE (Long Term Evolution) (VoLTE) call in a communication network are provided. After a request for establishing a VoLTE call is received, a user equipment (UE) involved in the VoLTE call that is in LTE coverage can be identified. One or more dummy messages are send to the identified UE after the VoLTE call enters into ringing phase. An interval between successive dummy messages is shorter than a first time period set for determining whether to release radio resource for supporting the VoLTE call in LTE coverage. Sending the dummy message can be stopped if the VoLTE call is answered or is cancelled. As a consequence, time spending on establishing a VoLTE call is shortened and good performance characteristics is achieved, and signallings on networks are reduced.

Mechanisms are provided to enable the identification of a UE in both the cellular network (e.g., a 3GPP network) and the WLAN. In some aspects, the UE is provided with information enabling it to find the transport network layer, TNL, address (e.g., an IP address) of the WT and an identifier of the UE. Using the TNL of the WT, the UE can establish a connection towards the WT (either connectionless or connection oriented) and provide the UE identity. The WT and eNodeB exchange information about the UE ID, and the UE is identified in both the 3GPP network and the WLAN. The WT is a logical node and may be integrated in the eNodeB, in a WLAN node (e.g. access controller, access point), standalone or somewhere else. Once identified, user data can be sent to the UE via the WT.

A vehicle control system includes a vehicle control apparatus mounted on a vehicle for controlling the vehicle, an electronic key carried by a user for performing communication with the vehicle control apparatus, and a portable device carried by the user for performing communication with the electronic key. When detecting user's getting in or out of the vehicle, the vehicle control apparatus determines a location of the electronic key based on communication with the electronic key. When the location of the electronic key is in the vehicle and the user has no intention of getting out of the vehicle, communication between the electronic key and the portable device is brought into a connected state. When the location of the electronic key is outside the vehicle and the user has no intention of getting in the vehicle, communication between the electronic key and the portable device is brought into a disconnected state.