[Object] To provide a wireless link usable in a more stable manner in a situation where beam management is performed. A communication apparatus includes: a control unit that performs control such that a plurality of reference signals associated with pieces of antenna information different from each other is transmitted to a terminal apparatus; and an acquisition unit that acquires control information corresponding to at least any one of the plurality of reference signals from the terminal apparatus after a random access response in a random access procedure is transmitted to the terminal apparatus. The control unit controls following communication with the terminal apparatus on the basis of the antenna information corresponding to the acquired control information.

Provided are methods and apparatus for recovering collided packets in a wireless network, as well as for implementing block-based error correction techniques. In an example, provided is a method to recover collided packets by (A) assigning a peak of a collided packet to a respective packet by calculating a matching cost, per collided packet, from an amplitude of the peak and a time when the peak occurred, where the matching cost is determined from a combination of per-collided packet parameters including (i) respective estimated symbol boundaries of the collided packets, (ii) respective estimated Carrier Frequency Offsets of the collided packets, and (iii) a peak amplitude history of prior packets received from wireless network nodes, and (B) assigning, based on a respective packet in the collided packets having the parameters producing a lowest matching cost among the calculated matching costs, the peak to the respective packet.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a maximum permissible exposure (MPE) condition is satisfied for the UE; transmit, to abase station, a message based at least in part on determining that the MPE condition is satisfied; and transmit, to the base station based at least in part on the MPE condition being satisfied, beam information indicating an updated transmit beam for the UE. Numerous other aspects are provided.

A data transmission method applied to an access network and a device, the method including receiving, by a radio access network (RAN) device of an access network, a first data packet from a first terminal device, wherein the first data packet comprises a logical channel identifier (LCH ID), determining, by the RAN device, whether the LCH ID meets a first preset rule, and sending, by the RAN device, in response to determining that the LCH ID meets the first preset rule, the first data packet through a common radio link control (RLC) entity.

A communication method and apparatus. A terminal device determines, based on first information received from a first network device, that a second network device has first time information, where the first time information is time information having precision that is higher than precision of second time information of the first network device. The terminal device obtains the first time information of the second network device based on the first information. The terminal device obtains high-precision time information to improve communication reliability.

A random access method and apparatus and resource configuration method and apparatus. The random access apparatus includes: a third receiving unit configured to, on a physical random access channel resource, receive a random access preamble transmitted by a terminal equipment; wherein the random access preamble is used to indicate that the terminal equipment has sidelink data to be transmitted, and/or the physical random access channel resource is used to indicate that the terminal equipment has sidelink data to be transmitted; and a second transmitting unit configured to transmit a random access response to the terminal equipment. By indicating in the random access procedure to the network device that the terminal equipment has a sidelink MAC CE to be transmitted, it may be avoided that the network device does not learn that the terminal equipment has a sidelink MAC CE to be transmitted, so that the network device allocates resources for the sidelink, and resource consumption may be lowered.

A method and apparatus for consistent LBT failure detection and recovery. The method is applicable to a terminal equipment, and the method includes when a higher layer receives an LBT failure indication from lower layer(s) and a counter for consistent LBT failure detection is equal to a first value, or, when a higher layer receives an LBT failure indication from lower layer(s) and a counter for consistent LBT failure detection is greater than or equal to a first value and there exists no triggered consistent LBT failures in an active BWP in a serving cell of a terminal equipment, triggering the consistent LBT failures of the active BWP in the serving cell.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an apparatus of a central or management entity of an integrated access and backhaul (IAB) network may receive a report indicating one or more of a failure associated with a communication link associated with an IAB node included in the IAB network or a quality of service (QoS) associated with the communication link. The apparatus may modify a topography of the IAB network or routing within the IAB network when the report indicates the failure associated with the communication link. The apparatus may verify a QoS associated with the IAB network when the report indicates the QoS associated with the communication link. Numerous other aspects are described.

Various aspects described herein relate to dynamically controlling a time when random access initiated in a target cell of a non-terrestrial network. For example, when a user equipment (UE) detects an event that triggers a random access procedure in the target cell, the UE may monitor a control channel from the target cell for a control signal during a target cell monitoring window prior to initiating random access in the target cell. For example, the control signal may include a dynamic indication to identify UEs allowed to initiate random access, whereby a UE is not permitted to autonomously start contention-based random access in the target cell during the target cell monitoring window unless the UE has received the control signal. In this way, the target cell may regulate a rate at which UEs initiate the RACH procedure in order to manage congestion in the target cell.

A network device sends a contention resolution message to a terminal device, and in instances when the network device determines that a target ACK sent by the terminal device is not received on an uplink carrier, the network device sends a first uplink grant message to the terminal device on a data transmission carrier. The terminal device may send a first message to the network device on the data transmission carrier based on the first uplink grant message. In this way, the network device can determine, based on the first message received on the data transmission carrier, whether the terminal device successfully resolves a contention problem, to avoid an access failure caused by missing detection of the target ACK, and improve an access success rate of the terminal device.