A network comprising a first BS for handling a handover comprises at least one storage device for storing instructions and at least one processing circuit coupled to the at least one storage device. The at least one processing circuit is configured to execute the instructions stored in the at least one storage device. The instructions comprise the first BS receiving a Handover Request message from a second BS, wherein the Handover Request message comprises a first plurality of UE capabilities, and the first plurality of UE capabilities indicate a first maximum reception (RX) bandwidth (BW) (RX_BW) for a frequency band; the first BS obtaining a first RX_BW and a first location of the first RX_BW at a first carrier; the first BS generating a handover command configuring the first communication device; and the first BS transmitting a Handover Request Acknowledge message comprising the handover command, to the second BS.

A method includes receiving initial acknowledgement resource information at a user device from a base station. The initial acknowledgement resource information is associated with a subset of acknowledgement resources. The method includes determining in dependence on the initial acknowledgement resource information which of the subset of acknowledgement resources is to be used. The user device transmits an acknowledgement on the determined resource.

There is disclosed a method, and a corresponding apparatus, for maintaining the settings of a user equipment, comprising: monitoring at least one stored setting in the terminal; responsive to a change in said at least one stored setting notifying a controller; and responsive to said notification selectively resetting said at least one stored setting.

Embodiments of this disclosure provide a relay reselection method and apparatus and a system; includes: relay equipment monitors a triggering condition for relay reselection; the relay equipment judges whether the triggering condition for relay reselection is met; and the relay equipment transmits relay reselection indication information to a remote terminal taking the relay equipment as a relay when the triggering condition for relay reselection is met, to indicate the remote terminal to perform relay reselection; wherein, the triggering condition for relay reselection is that an air interface channel of the relay equipment is out of synchronization or is about to be out of synchronization, or a notification of terminating a relay function is received, or power of the relay equipment is insufficient. With the embodiments of this disclosure, a time of interruption due to a poor relay link may be reduced, and occurrence of long-time traffic interruption may be avoided.

To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.

A wireless device and a base station may communicate with each other via carriers of different types. The carrier types may differ, for example, in their use of reference signals.

A method includes identifying one or more elephant flows operated by a plurality of user equipment (UE) terminals located in a first coverage area, comparing the one or more elephant flows to threshold characteristics, determining whether the coverage area is congested, causing handover of the plurality of UE terminals from the first coverage area when the one or more elephant flows exceed the threshold characteristics and the first coverage area is congested.

A method of processing state information in a radio access network (100). The radio access network (100) includes a first radio access node (103, 104) that is associated with a cell (105, 106) and user equipment (102). The method comprises maintaining state information at the user equipment (102), the state information comprising at least one state information part associable with different values. The method further comprises transmitting a current value associated with at least one state information part from the user equipment (102) to the first radio access node (103, 104) in response to detecting at least one predetermined trigger indicating that the first radio access node (103, 104) may not hold the current value. The method further comprises relying on the first radio access node (103, 104) holding the current value associated with the at least one state information part if no predetermined trigger is detected.

A method for re-establishing a Radio Resource Control, RRC, connection between a User Equipment (1), UE, and a target evolved NodeB (3), target eNB, the method being performed by the UE (1) and comprising: receiving (S100) an RRC Connection Reestablishment message from the target eNB (3), the RRC Connection Reestablishment message including a downlink, DL, authentication token which has been generated by a Mobility Management Entity (4) and has had a Non Access Stratum integrity key as input; and authenticating (S110) the received DL authentication token. Discloses are also UEs, target eNBs, source eNBs and Mobility Management Entities as well as methods, computer programs and computer program product related thereto.

Embodiments of the present disclosure provide a scheduling method and a base station. In a cell handover process, a target base station serving a target cell receives a random access request from a terminal, sends a random access response to the terminal according to the random access request, and proactively sends an uplink grant to the terminal after sending the random access response and prior to receiving a handover complete command from the terminal. By proactively sending the uplink grant, the target base station can perform uplink scheduling for UE before cell handover is completed, so as to reduce an uplink transmission latency caused by the cell handover.