To prevent a client device from being stranded, a steering controller of an access point device can provide an improved network environment or performance by steering a target client device to a basic service set (BSS) of a network device that is different from the current BSS of the target client device based on a first or a poor link quality threshold where non-associated client (NAC) link quality parameters for NAC network devices within the network environment, such as a mesh network, is not available. The steering controller can select or identify a candidate BSS and then send a steering query to the target client device. The steering controller can receive a response from the target client device that indicates whether the steering to the candidate BSS was successful or accepted by the targeted client device.

Provided are an electronic device and a method for wireless communication, and a computer-readable storage medium. The electronic device comprises: a processing circuit configured to: determine that a physical layer problem occurs during transmission by a user equipment which uses a pre-configured resource in a pre-configured resource pool to execute the transmission; and determine, according to a transmission quality requirement of a data packet to be sent, the length of time during which the user equipment can continue using the pre-configured resource.

This disclosure describes a user equipment device (UE). The UE includes one or more antennas; one or more radios configured to perform cellular communication using a plurality of radio access technologies (RATs) that support voice over an Internet protocol (IP) multimedia subsystem (IMS); and one or more processors coupled to the one or more radios. The one or more processors are configured to cause the UE to perform operations including: sending, to a communications network associated with a first RAT of the plurality of RATs, a first request for IMS registration, wherein the UE is camped on a first cell of the first RAT; determining, based on an IMS rejection failure, that the IMS registration failure is due to a temporary radio failure; and responsively attempting to perform the IMS registration on at least one other cell of the first RAT.

A method and apparatus for selecting a NR cell in a mobile communication system are provided. Method for selecting a NR cell includes selecting, by a terminal, a first cell, acquiring, by the terminal in the first cell, a MIB, acquiring, by the terminal in the first cell, a SIB1 based at least in part on a first information in the MIB, considering, by the terminal, the first cell as barred, performing, by the terminal a first operation group if the SIB1 received in the first cell does not include a intraFreqReselection and performing, by the terminal a second operation group if the SIB1 received in the first cell includes the intraFreqReselection and the second intraFreqReselection is set to NotAllowed.

A method and apparatus for selecting a NR cell in a mobile communication system are provided. Method for selecting a NR cell includes selecting, by a terminal, a first cell, performing, by the terminal a first operation group if the terminal fails to acquire MIB in the first cell and performing, by the terminal a second operation group if the terminal succeeds to acquire MIB and SIB1 in the first cell and the MIB includes cellBarred set to barred and the SIB1 includes a intraFreqReselection set to NotAllowed.

A condition handover cancellation method and a communication equipment are provided. A CHO cancellation method applied to a source network side device includes: sending a CHO request to at least one target network side device; and sending a CHO cancellation message to the target network side device and/or a terminal side device.

A method and system for performing handover in a third generation (3G) long term evolution (LTE) system are disclosed. A source evolved Node-B (eNode-B) makes a handover decision based on measurements and sends a handover request to a target eNode-B. The target eNode-B sends a handover response to the source eNode-B indicating that a handover should commence. The source eNode-B then sends a handover command to a wireless transmit/receive unit (WTRU). The handover command includes at least one of reconfiguration information, information regarding timing adjustment, relative timing difference between the source eNode-B and the target eNode-B, information regarding an initial scheduling procedure at the target eNode-B, and measurement information for the target eNode-B. The WTRU then accesses the target eNode-B and exchanges layer 1/2 signaling to perform downlink synchronization, timing adjustment, and uplink and downlink resource assignment based on information included in the handover command.

An embodiment of the present disclosure relates to a handover method between network devices and a terminal device. The method includes receiving, by a terminal device, at least one handover command corresponding to a plurality of target network devices, the at least one handover command corresponding to the plurality of target network devices including a first handover command, and the first handover command including configuration information of a first target network among the plurality of target network devices; if the terminal device determines to establish a connection with the first target network device according to the first handover command, starting, by the terminal device, a first access timer corresponding to the first target network device; and establishing, by the terminal device, a connection with the first target network device according to the first access timer.

Systems and methods of handing over a wireless device 300 are provided. In one exemplary embodiment, a method performed by a source base station 100 of handing over a wireless device 300 from the source base station 100 to a target base station 200 may include determining that a wireless device 300 is to be handed over from the source base station 100 to the target base station 200. Further, the method may include sending, to the target base station 200, a current mapping between one or more flow identifiers and a first set of data radio bearers used for communication between the wireless device 300 and the source base station 100.

A method of handling invalid PDU session during handover procedure between non-3GPP access and 3GPP access in a mobile communication network is proposed. A UE establishes a PDU session over a first RAT, and then tries to handover the PDU session from the first RAT to a second RAT. However, at the network side, the PDU session over the first RAT does not exist anymore and the network considers the PDU session to be invalid. The network thus sends a PDU session establishment reject message back to the UE, with a 5GSM status message cause value #54 indicating “PDU session does not exist”. At the UE side, the PDU session over the first RAT is still valid (e.g., not inactive). In order to resynchronize with the network, the UE performs a PDU session release procedure to release the PDU session over the first RAT.