Abstract: A method and apparatus for controlling relaxed measurement in a wireless communication system is provided. A wireless device receives, from a network, a first measurement configuration including at least one of relaxed measurement conditions. A wireless device receives, from the network, a second measurement configuration including a frequency set to be measured in an idle state and/or an inactive state. A wireless device determines to perform a relaxed measurement or no measurement on at least one of frequency which is not included in the frequency set included in the second measurement configuration, based on that the at least one of the relaxed measurement conditions is met.

Abstract: A method performed by a user equipment (UE) in a wireless communication system comprises: receiving, from a serving cell, a measurement configuration comprising i) a cell quality condition for a measurement report, and ii) at least one stationarity condition for the measurement report; performing a measurement on one or more cells based on the measurement configuration, to obtain a measurement result for the one or more cells; and transmitting, to the serving cell, the measurement report based on that i) the measurement result for the one or more cells satisfies the cell quality condition, and ii) the at least one stationarity condition is satisfied for the UE. The measurement report comprises the measurement result for the one or more cells, and stationarity information informing that the at least one stationarity condition is satisfied for the UE.

Abstract: A method and apparatus for handling ephemeris information for a NTN cell in a wireless communication system is provided. A wireless device may receive, from a network, an ephemeris information related to a Non-Terrestrial Networks (NTN) cell. The wireless device may determine whether the ephemeris information is valid or not, based on whether the measurement on the NTN cell is able to be performed during the service time of the NTN cell. Based on determining that the ephemeris information is not valid, the wireless device may transmit, to the network, (1) information informing that the ephemeris information is not valid and (2) information on time at which the measurement on the NTN cell is able to be performed.

Abstract: A method and apparatus for controlling relaxed measurement in a wireless communication system is provided. A wireless device receives, from a network, a first measurement configuration including at least one of relaxed measurement conditions. A wireless device receives, from the network, a second measurement configuration including a frequency set to be measured in an idle state and/or an inactive state. A wireless device determines to perform a relaxed measurement or no measurement on at least one of frequency which is not included in the frequency set included in the second measurement configuration, based on that the at least one of the relaxed measurement conditions is met.

Abstract: The present disclosure relates to a cell reselection in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system, the method comprises: receiving a connection release message from a network upon which the wireless device leaving a connected state; receiving a configuration of a threshold range from the network; receiving information for identities (IDs) of higher priority cells from the network; identifying a highest ranked cell among a plurality of neighbor cells based on a result of a measurement on the plurality of neighbor cells; identifying one or more neighbor cells among the plurality of neighbor cells whose ranking value is within the threshold range of a ranking value of the highest ranked cell; and performing a cell reselection to a cell among the one or more neighbor cells based on that an ID of the cell is included in the IDs of higher priority cells.

Abstract: The present disclosure related to a routing path switching in wireless communications. According to an embodiment of the present disclosure, a parent node in an integrated access and backhaul (IAB) system may provide an indication of triggered local routing to child node(s). Therefore, based on the indication, the child node can determine whether to perform a local re-routing, and determine for which traffic flow the child node had better perform a local re-routing.

Abstract: A method and apparatus for evaluating service time for an NTN cell in a wireless communication system is provided. A wireless device may receive, from a network, cell coverage information for a Non-Terrestrial Networks (NTN) cell. The wireless device may receive, calculate a remaining service trace. The wireless device may evaluate remaining service time for the NTN cell based on the remaining service trace. The wireless device may determine whether to perform a mobility to the NTN cell.

Abstract: A method and apparatus for conditional handover based on the service time of candidate cells in a wireless communication system is provided. A wireless device receives, from a network, handover configuration including information related to candidate cells to be measured and service time of each of the candidate cells. A wireless device performs measurement on the candidate cells. A wireless device selects a cell among the candidate cells based on the service time of each of the candidate cells. A wireless device performs handover to the selected cell.

Abstract: The present disclosure relates to a cell reselection in wireless communications. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) in a wireless communication system comprises: receiving, from a network, location information comprising a location point for each time point related to each of neighbor cells and a reference distance related to each of the neighbor cells; determining a distance to each of the neighbor cells from the UE as a distance between the location point and the UE; determining a ratio of the distance to the reference distance for each of the neighbor cells; selecting a cell based on the determined ratio among at least one of the neighbor cells; and performing a cell reselection to the selected cell.

Abstract: The present disclosure relates to method and apparatus for performing a measurement wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device comprises: receiving measurement configurations from a network, each of the measurement configurations mapping to a corresponding signal quality range; measuring a first signal quality for a serving cell at a first time point and a second signal quality for the serving cell at a second time point after the first time point; identifying a signal quality range to which a difference between the first signal quality and the second signal quality belongs; and performing a measurement based on a measurement configuration mapped to the identified signal quality range.

Abstract: A method and apparatus for a fast access considering service assistant information in a wireless communication system is provided. A wireless device selects a new cell. The wireless device performs a Random Access (RA) procedure to the new cell. The wireless device performs a cell reselection procedure based on a mobility information. The RA procedure includes (1) selecting a special RA preamble for service assistance information related to an intended slice, (2) transmitting, to the new cell, a RA message including the service assistance information; and (3) receiving, from the new cell, a response message including the mobility information.

Abstract: The present disclosure relates to cell reselection in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: performing a cell reselection to a cell; receiving information for a signal quality range, information for a scaling factor for the signal quality range and information for a time period for determining a number of cell reselections; based on a determination that a signal quality measured for the cell is within the signal quality range, applying the scaling factor for the signal quality range to the time period; and estimating a mobility state of the wireless device based on the time period to which the scaling factor is applied.

Abstract: The present disclosure relates to a cell reselection in wireless communications. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) in a wireless communication system comprises: receiving, from a network, location information comprising a location point for each time point related to each of neighbor cells; determining a distance to each of the neighbor cells from the UE as a distance between the location point and the UE; selecting one or more cells including at least one of: i) a cell to which the distance from the UE is longest among a first set of the neighbor cells in a distance decreasing state; or ii) a cell to which the distance from the UE is shortest among a second set of the neighbor cells in a distance increasing state; and performing a cell reselection to a cell among the selected one or more cells. The distance decreasing state is a state in which the distance to the first set of the neighbor cells from the UE decreases by time.

Abstract: The present disclosure relates to mobility in dual connectivity (DC) 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 network, a plurality of conditional mobility commands, each of the plurality of conditional mobility commands comprising a respective trigger type; identifying, among the plurality of conditional mobility commands, one or more conditional mobility commands comprising a trigger type corresponding to a secondary cell group (SCG) configuration status of the wireless device; and performing an evaluation of one or more target cells related to the one or more conditional mobility commands.

Abstract: The present disclosure relates to method and apparatus for cell reselection in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises performing a cell reselection to a cell at a first time point during a time duration; receiving, from the cell, information comprising a first time range and a weight related to the first time range; determining a mobility counter based on the weight related to the first time range, wherein a time length between the first time point and a second time point at which a previous cell reselection is performed during the time duration is within the first time range; and determining a mobility state of the wireless device based on the mobility counter.

Abstract: A disclosure of this specification provides a method for radio communication, performed by user equipment (UE). The method is comprising: connecting to a non-terrestrial network (NTN) satellite serving a targeted service area via a service link, wherein the NTN satellite is connected to a gateway via a feeder link; receiving, from the NTN satellite, information on service time of a serving cell; starting to perform neighbor cell measurement at a time point before end of the service time of the serving cell by a certain time, regardless of whether a cell quality of the serving cell meets a cell selection criterion S, wherein the NTN satellite provides an earth fixed system, wherein the information on the service time includes information on when the serving cell is going to stop serving the targeted service area, wherein the information on the service time is provided based on a Coordinated Universal Time.

Abstract: A method and apparatus for inheriting a broadcast system information in a wireless communication system is provided. A wireless device receives, from a first cell, a broadcast system information including a first information and a second information. A wireless device receives, from a second cell, another broadcast system information including anew information to replace the first information. A wireless device performs a measurement procedure, a cell selection procedure, and/or a cell reselection procedure while in the second cell, based on the second information received from the first cell.

Abstract: A method and apparatus for pausing Radio Link Failure detection for Non-Terrestrial Networks is provided. A wireless device establishes a connection with a Radio Access Node (RAN) node. A wireless device initiating a Radio Link Failure (RLF) detection for the connection. A wireless device receives, from the RAN node, information on feeder link switching which informs that an NTN gateway for the RAN node is switched. A wireless device stops the initiated RLF detection based on the information on the feeder link switching.

Abstract: A method and apparatus for measurement in idle state or inactive state considering a network slice in a wireless communication system is provided. A wireless device configures multiple network slices. A wireless device receives network slice information related to the multiple network slices. A wireless device establishes a Packet Data Unit (PDU) session for a specific service. A wireless device determines one or more frequencies that support the at least one network slice used by the PDU session among the multiple network slices, based on the frequency information. A wireless device reports measurement results on the determined one or more frequencies.

Abstract: A method and apparatus for utilizing a dynamic configuration in a wireless communication system is provided. A wireless device receives, from a network, a single configuration set including a first configuration associated with a first time information and a second configuration associated with a second time information. A wireless device applies the first configuration based on the first time information. A wireless device applies the second configuration and discarding the first configuration based on the second time information. The single configuration set is different from another single configuration set provided for another wireless device in the cell.