A first base station for handling cell release for dual connectivity in a communication system comprising a user equipment (UE) connecting to the first base station and a second base station, the first base station comprises a processing means configured to execute the instructions of determining to release a cell of the second base station which communicates with the UE; transmitting a cell release request message to the second base station, for initiating a release of the cell of the second base station from the UE; receiving a cell release response message transmitted by the second base station in response to the cell release request message; transmitting a RRC message to the UE, to indicate the UE to release the cell of the second base station, after receiving the cell release response message; and receiving a RRC response message transmitted by the UE in response to the RRC message.

A method and an apparatus for wireless link (radio link) control in a wireless communication system supporting dual connectivity is disclosed. The present invention includes: detecting radio link failure (RLF) of a secondary serving cell provided from a secondary base station, separately from detecting RLF of a primary serving cell provided from a master base station; generating a RLF specifier specifying an occurrence of RLF of the secondary serving cell when RLF of the secondary serving cell is detected; and transmitting the RLF specifier to an RRC connected master base station. A wireless link between a terminal and a master base station and a wireless link between a terminal and a secondary base station can be managed individually when a terminal is dually connected to both the master base station and the secondary base station in a network.

Configuration of secondary cell timers is disclosed for long term evolution (LTE)/LTE-Advanced (LTE-A) having unlicensed spectrum. In order to save power at a user equipment (UE), secondary cells may be deactivated by configuring a secondary cell deactivation timer. Because of transmission uncertainties when operating in LTE/LTE-A systems having unlicensed spectrum, the deactivation timers for unlicensed spectrum may be provided in a clear channel assessment (CCA)-dependent configuration, a CCA-independent configuration, or an alternative threshold-driven configuration of both CCA-dependent and CCA-independent configurations.

Technology that allows PDN connections for a UE to be resumed efficiently after WLAN connectivity is lost and then regained are disclosed. A UE can have a multi-legged or multi-access packet-data-network (PDN) connection that is used to communicate with a WLAN and with an eNB. When WLAN connectivity is lost, the UE can send a WLAN-connectivity-loss communication to a PDN-GW via the eNB. A TWAG can also detect that the UE's WLAN connectivity has been lost and can send a suspension communication to the PDN-GW. The TWAG can also store PDN context information for the UE for a predefined period of time. When the UE regains WLAN connectivity, the UE can send a WLAN-link-control-protocol (WLCP) communication to the TWAG indicating that the UE wishes to resume one or more PDN connections that were previously suspended.

According to a first aspect of the present disclosure, an NFC device is provided which comprises: a transceiver unit configured to establish a communication channel between the NFC device and a further NFC device, said further NFC device being external to the NFC device; a power management unit configured to detect an inactive communication state of said communication channel and to cause the transceiver unit to enter into a power management mode in response to a detection of said inactive communication state. According to a second aspect of the present disclosure, a corresponding method for managing power in an NFC device is conceived. According to a third aspect of the present disclosure, a corresponding computer program product is provided.

A user equipment and a circuit-switched fallback method thereof are provided. An initial base station sends a radio resource control connection release message containing the redirection frequency list to the UE. The redirection frequency list includes at least one redirection frequency. The UE determines a priority of the at least one redirection frequency according to a current registered LAI, a learning database and a piece of signal reference information of the redirection frequency list. Accordingly, the UE executes a circuit switch fallback procedure according to the priority of the at least one redirection frequency.

Technology for a user equipment (UE) operable to determine a power preference indication (PPI) is described. The UE can determine the PPI as one of a low power consumption or a normal power consumption. The UE can start a PPI timer when the PII is set for the normal power consumption. The UE can encode the PII for transmission to an Evolved Universal Terrestrial Radio Access Network (EUTRAN) in a UE assistance information message.

Briefly, in accordance with one or more embodiments, a base transceiver station having a first set of antennas and a second set of antennas geographically separated from the first set of antennas transmits a reference signal to a first device, and receives feedback from the first device. The feedback represents information that can be used to construct a weight adjustment vector. The base transceiver station selects a precoding vector from a codebook based at least in part on the feedback received from the first device, calculates the weight adjustment vector based at least in part on the feedback, and applies the weight adjustment vector to the selected precoding vector to provide an adjusted precoding vector. The base transceiver station then may transmit data to the first device using the adjusted precoding vector.

The present application provides a wireless connection switching method, a wireless terminal, and a system thereof, which are used to automatically switch a wireless connection state. For example: detecting whether a wireless terminal is connected to a bearer device of the wireless terminal; disconnecting a wireless data connection between the wireless terminal and a specified terminal if the wireless terminal is connected to the bearer device; and establishing the wireless data connection between the wireless terminal and the specified terminal if the wireless terminal is disconnected from the bearer device. In this way, it is implemented that a wireless terminal automatically switches a wireless connection state according to a different status of a connection to a bearer device.

Apparatus and Method for Decoupling an Uplink Enhanced Dedicated Channel and High Speed Downlink Shared Channel A method in a network node for decoupling an uplink enhanced dedicated channel, E-DCH, and a high speed downlink shared channel, HS-DSCH, comprises determining whether a radio link message contains a E-DCH decoupling indication (step 201). Where it is determined that the radio link message does not contain an E-DCH decoupling indication, the method comprises controlling a base station node to reject a radio link procedure in the event that a serving E-DCH radio link and a serving HS-DSCH radio link are not configured in the same cell (step 203).