In response to a radio link failure between given user equipment and a source access node of a communication system during a data transfer operation over a control plane, a method is provided for recovering the radio link for the given user equipment through a target access node of the communication system. The radio link recovery is enabled via a mobility management node of the communication system using a non-access stratum security context previously established between the given user equipment and the mobility management node.

The present disclosure relates to a communication technique for fusing, with an IoT technology, a 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retailing, security and safety-related services, etc. on the basis of 5G communication technologies and IoT-related technologies. Disclosed in the disclosure is a method for measurement report/event operation and network signaling in an UE autonomous handover.

According to some embodiments, a method of operating a network node is provided. A first information element IE is provided including an indication of an added synchronization signal block/physical cell identity SSB/PCI. The indication of the added SSB/PCI indicates an SSB and associated PCI that are associated with a radio link. A second IE is provided including the indication of the added SSB/PCI. The second IE relates to at least one of channel state information CSI, radio link monitoring, uplink power control, and/or uplink spatial relations. A control message including the first IE and the second IE is transmitted to a user equipment UE, to enable the UE to perform a radio link monitoring function on the radio link.

A method is performed by a wireless device (18). The method comprises detecting a failure associated with a cell group in multi-connectivity operation. The method also comprises, responsive to detecting the failure, suspending monitoring of one or more trigger conditions whose fulfillment is to trigger execution of a conditional configuration (16) stored at the wireless device (18).

A user device capable of receiving a full configuration related to a radio connection to a base station and a delta configuration which the user device can apply to a first configuration received previously (i) receives, from the base station while the user device is operating in a cell covered by the base station using the first configuration, the full configuration providing information for user device operation within a candidate cell (1404), (ii) determines whether a set of one or more conditions associated with the full configuration to the candidate cell is satisfied (1406), and (iii) connects to the candidate cell using the full configuration if the user device determines that the set of conditions is satisfied (1410).

Embodiments of this application provide a data service handover method and an apparatus. The method includes: a terminal device detects failure of a secondary cell group; and the terminal device starts a timer, and if a network device has not handed over to a master base station within a timing duration of the timer a data service transmitted by the secondary cell group, when the timer expires, the terminal device notifies the network device to hand over the data service to the master base station.

A method of UE includes receiving a radio resource control (RRC) message for configuring bandwidth parts (BWPs) of a serving cell, receiving a physical downlink control channel (PDCCH) indicating activation of a first BWP, performing a BWP switching to the first BWP indicated by the PDCCH, and starting a first downlink BWP timer associated with the first BWP. A UE includes a transceiver, and at least one controller coupled with the transceiver, the at least one controller configured to receive an RRC message for configuring BWPs of a serving cell, receive a PDCCH indicating activation of a first BWP, perform a BWP switching to the first BWP indicated by the PDCCH, and start a first downlink BWP timer associated with the first BWP.

A wireless device (18) detects a failure associated with a first cell group among multiple cell groups (14A, 14B) that are respectively provided by multiple radio network nodes (12A, 12B) to which the wireless device (18) simultaneously connects in multi-connectivity operation. The wireless device (18) transmits a report (20) that reports the detected failure. The report (20) includes information about a conditional configuration (16) stored at the wireless device (18).

An accessory device may dynamically determine to transition a cellular connection between mobile-initiated communication only (MICO) mode and non-MICO mode based on a variety of factors. The accessory device may be configured to communicate through a non-cellular network in addition to the cellular network. The accessory device may transition from MICO to non-MICO mode based on one or more of: loss of the non-cellular connection; location of the accessory device; a call, data, or SMS request failure over the non-cellular network; or other factors.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, a beam measurement report associated with a serving beam of the UE. The UE may determine that a timer, relative to transmission of the beam measurement report, has expired. The UE may perform a measurement of one or more neighbor beams based at least in part on determining that the timer has expired. Numerous other aspects are provided.