A first exemplary embodiment provides a method performed by a wireless device (10) for handling communication of the wireless device in a wireless communication network, wherein the wireless communication network comprises a first radio network node (12) and a second radio network node (13), which first radio network node (12) serves the wireless device (10). The wireless device receives an indication indicating a mapping between one or more channel state information reference signals, CSI-RS, and one or more random access channel, RACH, configurations. The wireless device receives one or more CSI-RSs from the second radio network node (13), and selects a CSI-RS out of the one or more received CSI-RSs. The wireless device further initiates a random access procedure towards the second radio network node (13) using at least part of the RACH configuration mapped to the selected CSI-RS.

This disclosure describes methods, devices, and systems related to coordinating channel switch times and specifying device operation (for example, transmitting device operation) to ensure data reception by one or more devices (for example, receiving devices). A device may receive a data path setup request frame from a second device. The device may cause to send a data path setup response frame. The device may cause to establish a communication with the second device on a first channel. The device may cause to establish a communication with the second device on a second channel at a first time. The device may cause to wait, by the device, at least for a duration specified by a channel switch time (CST) parameter. The device may cause to send device data to the second device over the first channel or the second channel based at least in part on the CST parameter.

This disclosure describes methods, devices, and systems related to coordinating channel switch times and specifying device operation (for example, transmitting device operation) to ensure data reception by one or more devices (for example, receiving devices). A device may receive a data path setup request frame from a second device. The device may cause to send a data path setup response frame. The device may cause to establish a communication with the second device on a first channel. The device may cause to establish a communication with the second device on a second channel at a first time. The device may cause to wait, by the device, at least for a duration specified by a channel switch time (CST) parameter. The device may cause to send device data to the second device over the first channel or the second channel based at least in part on the CST parameter.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish a communication link using a first serving beam on a secondary component carrier (SCC). The UE may identify a link failure associated with the first serving beam. The UE may transmit an out-of-range indication associated with the first serving beam in association with the link failure. The UE may report measurement information for one or more candidate serving beams. The UE may receive an indication of a second serving beam from the one or more candidate serving beams. The UE may switch to the second serving beam for the SCC. Numerous other aspects are described.

A method for wireless communication performed by a UE is provided. The method includes: receiving, from a serving cell, a bandwidth part (BWP) configuration; configuring a plurality of uplink (UL) BWPs in the serving cell based on the BWP configuration; determining that listen-before-talk (LBT) fails in a first UL BWP of the plurality of UL BWPs; switching from the first UL BWP to a second UL BWP of the plurality of UL BWPs after determining that the second UL BWP is configured with physical random access channel (PRACH) occasions and LBT has not failed in the second UL BWP; and releasing a radio resource control (RRC) connection and transitioning to an RRC_IDLE state after determining that LBT has failed in each of the plurality of UL BWPs that is configured with PRACH occasions.

According to certain embodiments, a method by a wireless device is provided for beam-based random access. The method includes receiving, from a network node, a handover command, the handover command comprising at least one suitability threshold. Measurements of each of a plurality of beams detected by the wireless device are performed. The measurements of the plurality of beams are compared to the at least one suitability threshold. A particular beam is selected based on the comparison, and a random access procedure is initiated.

According to certain embodiments, a method by a wireless device is provided for beam-based random access. The method includes receiving, from a network node, a handover command, the handover command comprising at least one suitability threshold. Measurements of each of a plurality of beams detected by the wireless device are performed. The measurements of the plurality of beams are compared to the at least one suitability threshold. A particular beam is selected based on the comparison, and a random access procedure is initiated.

The present disclosure relates to multicast-broadcast service (MBS) area control in wireless communications. According to an embodiment of the present disclosure, a method performed by a distributed unit (DU) in a wireless communication system comprises: transmitting, to a central unit (CU), information informing multicast-broadcast service (MBS) areas supported by the DU; receiving, from the CU, configurations for one or more MBS areas comprising a configuration for a first MBS area and a configuration for a second MBS area; providing an MBS service to a plurality of wireless devices based on the configuration for the first MBS area; receiving, from the plurality of wireless devices, feedback information for the first MBS area; transmitting, to the CU, a status message comprising an identity (ID) of the first MBS area and information obtained from the feedback information for the first MBS area; receiving, from the CU, a message for requesting a change of an MBS area, wherein the message comprises information for the second MBS area; and providing an MBS service based on the configuration for the second MBS area.

The present disclosure relates to multicast-broadcast service (MBS) area control in wireless communications. According to an embodiment of the present disclosure, a method performed by a distributed unit (DU) in a wireless communication system comprises: transmitting, to a central unit (CU), information informing multicast-broadcast service (MBS) areas supported by the DU; receiving, from the CU, configurations for one or more MBS areas comprising a configuration for a first MBS area and a configuration for a second MBS area; providing an MBS service to a plurality of wireless devices based on the configuration for the first MBS area; receiving, from the plurality of wireless devices, feedback information for the first MBS area; transmitting, to the CU, a status message comprising an identity (ID) of the first MBS area and information obtained from the feedback information for the first MBS area; receiving, from the CU, a message for requesting a change of an MBS area, wherein the message comprises information for the second MBS area; and providing an MBS service based on the configuration for the second MBS area.

A communication method and a device are provided. The method includes: Two thresholds are set on a terminal device side: a first threshold and a second threshold. A terminal device may determine a cause for a radio link failure RLF based on a value relationship between a measurement result of a radio signal and the two thresholds, and further may use different handling manners depending on different RLF causes. According to the foregoing method, the terminal device can more accurately locate the cause for the RLF, and perform corresponding handling, to quickly resume communication, meet a service requirement of an industrial scenario, and the like.