A method of listen before talk (LBT) recovery procedure for a user equipment (UE) is provided. The method comprises performing an LBT failure detection procedure for a serving cell, triggering the LBT recovery procedure for the serving cell in response to detecting consistent uplink (UL) LBT failures in a first bandwidth part (BWP) on the serving cell according to the LBT failure detection procedure, where the LBT recovery procedure includes triggering an LBT failure procedure for determining the first BWP as an invalid BWP, and cancelling the triggered LBT recovery procedure for the serving cell in response to confirming a predefined condition in the UE.

A method for releasing an uplink resource, a terminal device and a network device are provided. The method includes that: a terminal device transmits a handover complete message through an uplink grant resource in a first type of handover; and the terminal device releases the uplink grant resource in case that a preset condition is met. The uplink grant resource is an uplink resource, configured in a handover command, for accessing a target network device. The preset condition includes at least one of: an uplink timer expires, a first downlink channel for scheduling an uplink transmission resource for new transmission is monitored, or indication information for instructing to release the uplink grant resource is received.

A method is provided. The method may be performed by a UE. The method includes attempting to attach to or to perform a tracking area update in an EPS network to obtain voice services for a number of times. The method includes starting a modified timer based on a failure to attach to or to perform the tracking area update in an EPS network for the number of times and based on a configuration parameter. The modified timer may be modified based on a default timer. The method includes keeping an S1 mode enabled when starting the modified timer. The method includes attempting to obtain the voice services based on one or more access technologies other than EPS. The method includes attaching to or performing a tracking area update in the EPS network to obtain voice services based on the modified timer.

Embodiments herein relate, e.g., to a method performed by a wireless device for handling communication in a wireless communication network. The wireless device transmits to a radio network node, a first preamble associated with a selected downlink beam. The wireless device further monitors for a random access response, RAR, in a first RAR reception window and when the RAR is not received in the first RAR reception window, monitors for the RAR in a second RAR reception window of a different beam or to transmit, to the radio network node, a second preamble associated with a second beam wherein the first preamble is associated with a channel state information reference signal and the second preamble is associated with a synchronization signal block.

A method includes receiving cell reselection information from a radio access network device. The cell reselection information includes an identifier of at least one carrier frequency, an identifier of a network slice supported by each of the at least one carrier frequency, and priority information corresponding to the identifier of the network slice that is information of a specific service type of the network slice or a network slice set identifier corresponding to the network slice. The method further includes in response to the terminal device performing cell reselection, selecting a cell on a carrier frequency of the network slice supported by the terminal device as a reselected to-be-camped cell based on the identifier of the at least one carrier frequency, the identifier of the network slice supported by each of the at least one carrier frequency, and priority information corresponding to the identifier of the network slice.

A communication method and apparatus are disclosed. After receiving, from a source network device, a first message that enables a terminal device to handover from the source network device to a target network device, maintaining data transmission with the source network device; and sending a first report in response to subsequently detecting that a connection between the terminal device and the source network device fails. The first report includes first indication information used to determine whether the connection between the terminal device and the source network device fails before the terminal device accesses the target network device. In this way, the network device identifies, based on the information, a potential handover scenario that has a problem, so that a handover parameter is better adjusted or handover is more properly triggered, thereby improving a handover success rate of the terminal device.

Briefly, in accordance with one or more embodiments, a user equipment (UE) may enter into an E-UTRAN Routing Area Paging Channel state, and is configured with an E-UTRAN Routing Area and an Anchor identifier to identify an anchor evolved Node B (eNB) for the UE. The UE selects to a new cell without performing a handover procedure, and performs a cell update procedure. The UE also may enter into a Cell Update Connected state, and is configured with an Anchor identifier. The UE selects to a new cell, performs a cell update procedure, performs a buffer request procedure, and performs a cell update procedure to download buffered data and to perform data transmission with the new cell.

The present disclosure relates to handling a secondary cell group (SCG) failure in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving, from a source primary secondary cell (PSCell), a conditional mobility command including a mobility condition for a target PSCell; initiating a secondary cell group (SCG) failure recovery procedure and transmitting SCG failure information related to the SCG failure recovery procedure to a primary cell (PCell), based on detecting an SCG failure related to the source PSCell: based on that the mobility condition for the target PSCell is satisfied during the SCG failure recovery procedure: transmitting, to the PCell, a new PSCell indication informing a mobility from the source PSCell to the target PSCell; and performing a random access to the target PSCell for the mobility.

A communication method, an apparatus, and a communications system. A terminal device receives first configuration information. In response to an RLF occurring in a source MCG or a source SCG of the terminal device, the terminal device sends a first message including information about a time period from the terminal device receiving the first configuration information to the radio link failure occurring in the source MCG or the source SCG, or information about a time period from the RLF occurring in the source MCG or the source SCG to the terminal device sending the first message. In this way, a network device exchanges proper and valid information between network devices based on the information reported by the terminal device, to optimize parameters.

Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for a primary secondary cell (PSCell) change failure. In example embodiments, a master network device receives, from a source secondary network device, a first request for a change of a terminal device from the source secondary network device to a target secondary network device. The master network device receives, from the source secondary network device, an identification of a source PSCell operated by the source secondary network device and serving the terminal device prior to the first request. The master network device further receives, from the terminal device, an indication of a radio link failure of the terminal device in a PSCell and transmits the indication of the radio link failure to the source secondary network device along with the identification of the source PSCell.