This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for radar-assisted beam failure. A second wireless device may transmit, to a first wireless device, a configuration to monitor for a potential obstruction for a set of one or more beams for the wireless communication with the second wireless. The first wireless device may receive, from the second wireless device, the configuration to monitor for the potential obstruction for the set of one or more beams for the wireless communication with the second wireless device. The first wireless device may perform radar detection for the potential obstruction to the set of one or more beams for the wireless communication with the second wireless device.

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for radar-assisted beam failure. A second wireless device may transmit, to a first wireless device, a configuration to monitor for a potential obstruction for a set of one or more beams for the wireless communication with the second wireless. The first wireless device may receive, from the second wireless device, the configuration to monitor for the potential obstruction for the set of one or more beams for the wireless communication with the second wireless device. The first wireless device may perform radar detection for the potential obstruction to the set of one or more beams for the wireless communication with the second wireless device.

Arrangement for switching between an active bandwidth part and the target bandwidth part are disclosed. A method includes selecting one or more resource blocks comprised in the target bandwidth part for a transmission or reception between the wireless device and the network node. The selected resource blocks to be used in the target bandwidth part are indicated in a resource allocation field of a downlink control channel information in the active bandwidth part. The allocation field includes information bits and the resource allocation field in the active bandwidth part and the information bits are configured based on a target bandwidth part resource allocation type. The target bandwidth part resource allocation type indicates whether the information bits have a bitmap corresponding to one or more resource block groups or an integer value corresponding to a starting resource block and a length of the allocation in resource blocks.

In embodiments, a base station may send to a user equipment (UE) a P3 beam management (BM) channel state information reference signal (CSI-RS) having two ports, and may receive from the UE a P3 BM report in response. The P3 BM report may include a proactive UE beam switch indication and a CSF report corresponding to the best UE beam determined by a UE based on the P3 BM CSI-RS. The base station may determine whether the P3 BM report includes an indication that the UE will perform a beam switch from a first UE beam to a second UE beam, and may determine a UE beam switch slot during which the UE will perform the beam switch. Starting at the beam switch slot, the base station may send a physical downlink shared data channel (PDSCH) transmission to the UE using the adjusted downlink transmission parameters.

Methods, apparatuses, and systems for wireless communications are described. A base station may send a message with configuration parameters to a wireless device, and the configuration parameters may be for at least two different types of carriers used for communications.

Methods, apparatuses, and systems for wireless communications are described. A base station may send a message with configuration parameters to a wireless device, and the configuration parameters may be for at least two different types of carriers used for communications.

Embodiments discloses a communication method, apparatus, and system, and a computer-readable storage medium. The method includes: A first base station sends a coordination request to a second base station, the second base station being a base station other than the first base station; the first base station receives a coordination response, the coordination response including identifiers of M first reflectors, M is an integer greater than 0, the M first reflectors belong to the second base station, the coordination response is sent by the second base station after releasing a control right on the M first reflectors based on the coordination request, the M first reflectors can cover first UE, and the first UE is homed to the first base station; the first base station obtains the control right on the M first reflectors; and the first base station communicates with the first UE by using the M first reflectors.

Embodiments discloses a communication method, apparatus, and system, and a computer-readable storage medium. The method includes: A first base station sends a coordination request to a second base station, the second base station being a base station other than the first base station; the first base station receives a coordination response, the coordination response including identifiers of M first reflectors, M is an integer greater than 0, the M first reflectors belong to the second base station, the coordination response is sent by the second base station after releasing a control right on the M first reflectors based on the coordination request, the M first reflectors can cover first UE, and the first UE is homed to the first base station; the first base station obtains the control right on the M first reflectors; and the first base station communicates with the first UE by using the M first reflectors.

Provided are a data transmission method and apparatus and a computer storage medium. The method may include: a source Distributed Unit (DU) reports a packet data convergence protocol (PDCP) transmission state report to a source Centralized Unit (CU), where the PDCP transmission state report enables the CU to determine which PDCP protocol data unit (PDU) data is not successfully received by a UE; and the PDCP PDU data which is not successfully received by the UE are retransmitted to the UE via a target DU.

A method performed by a control node for handling data traffic between a Transmission and Reception Point, TRP, and a User Equipment, UE, in a wireless communications network is provided. The TRP is related to a network node and is serving the data traffic in a first sector carrier. The data traffic in the first sector carrier is processed by a first Baseband Unit, BBU. The control node decides (201) to re-allocate the processing of the data traffic in the first BBU to a second BBU. The second BBU processes data traffic in a second sector carrier provided by the TRP. The control node sends (203) a second order to the network node, to stop processing the UE 120 data traffic in the first BBU. The control node further sends (205) a third order to the network node, to activate the second sector carrier, start processing the data traffic in the second BBU, and deactivate the first sector carrier.