The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (loT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method by which a terminal collects information related to handover performance and efficiently reports the information to a base station.

The technology of this application relates to a communication method and a communication apparatus. A dual active protocol stack (DAPS) handover procedure of user equipment (UE) in an supplementary uplink (SUL) scenario, that is, in a band combination in which an SUL is located, is provided. In the method, a receive channel, a transmit channel, and a baseband processing resource of a terminal device can be fully utilized, interruption time caused by handover is reduced, and a data throughput and cell edge coverage are improved.

A wireless transmit/receive unit (WTRU) may receive, from a serving base station, configuration information including triggering conditions for a measurement event. The WTRU may receive offset values to apply to Uu radio quality measurements, wherein each offset value corresponds to a value or range of values of sidelink (SL) channel busy ratio (CBR)/channel occupation ratio (CR) radio quality, SL radio quality or both. Also, the WTRU may measure Uu radio quality, and may measure SL CBR/CR radio quality, SL radio quality, or both. The WTRU may apply an offset to the measured Uu radio quality, wherein the applied offset is determined based on an offset value, of the received offset values, that corresponds with the measured SL CBR/CR radio quality, SL radio quality or both. On a condition that the measurement event is triggered based on the received triggering conditions, the WTRU may transmit an indication including the applied offset.

A method and a device for determining an MRO critical scenario and an apparatus are provided. The method includes: obtaining, by the UE, parameter information about a connection problem in the case that the connection problem has been detected by the UE in a cell handover process and cell handover has been performed successfully, or in the case that the connection problem has been detected by the UE within a predetermined time period after the cell handover is performed successfully; and transmitting, by the UE, the parameter information to a network device, so that the network device may determine the MRO critical scenario in accordance with the parameter information. According to the embodiments of the present disclosure, it is able to determine the MRO critical scenario in a scenario where cell handover is performed successfully.

A wireless communication apparatus including least a first station (STA) and a second STA, and being connectable with at least a first access point (AP) and a second AP in parallel, includes a detection unit configured to detect that a quality of communication with the first AP with which a connection is established fulfills a predetermined condition, and a connection unit configured to establish a connection with the second AP using the second STA in a case where the detection unit detects that a quality of communication with the first AP fulfills the predetermined condition in a state that a connection with the first AP is established using the first STA.

Methods in a user equipment, UE, for handling fallback from a failed handover, such as a dual-active protocol stack, DAPS, handover. An example method in a UE comprises receiving (710) a command instructing the UE to handover one or more radio bearers from a source cell to a target cell, where the command is received while the UE is evaluating execution conditions for a conditional reconfiguration; detecting (720) failure of the handover of at least one radio bearer from the source cell to the target cell; and, in response to said detecting, performing (730) evaluation of the execution conditions for the conditional reconfiguration.

The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method by which a terminal collects information related to handover performance and efficiently reports the information to a base station.

The present disclosure proposes a method and a device for reporting information related to handover in a next generation mobile communication system. A method performed by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise the steps of acquiring configuration information related to dual active protocol stack (DAPS) handover, after execution of the DAPS handover is triggered on the basis of the configuration information, identifying failure in a radio link between the terminal and a source cell, and transmitting information on the failure in the radio link.

A network handover processing method includes receiving service real-time requirement information from a network data analytics function (NWDAF) entity, the service real-time requirement information indicating a timeliness requirement of a service provided to user equipment and by a service provider, and the service real-time requirement information being generated by the NWDAF entity based on the service. The method also includes generating, based on the service real-time requirement information, a handover policy for an access network entity connected to the user equipment, and transmitting the handover policy to a session management function (SMF) entity to configure other network entities with the handover policy. The method further includes applying the handover policy by the access network entity during handover of the user equipment.

The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for handling sidelink communication according to type of handover are provided.