A first group embodiments provide a method performed by a network node (NN) in a wireless network comprising responsive to a DL data intended for a user equipment (UE), transmitting a first short signal burst to the UE over a channel using a directional beam, and based on detecting a first response to the first short signal burst from the UE indicating that the channel is available, transmitting at least a portion of the DL data to the UE over the channel using the directional beam. A second group embodiments provide a method performed by a NN comprising determining availability of a channel between the network node and the UE using a directional beam, based on determining that the channel is available, transmitting a first resource grant for transmission of a UL data by the UE, and receiving the UL data from the UE over the channel using the directional beam.

Embodiments of this application disclose a channel puncture mode indication method and a related apparatus, which are applied to a wireless local area network (WLAN) system, for example, a WLAN system supporting 802.11be. The method includes: An access point sends a multi-user request to send MU-RTS frame, where the MU-RTS frame includes a common information field, the common information field includes channel puncture information, and the channel puncture information indicates whether at least one 20 MHz channel is occupied.

An information transmission method and a device are provided. The method is performed by an initiating node and includes: sending request to send Request To Send (RTS) information, where the RTS information includes identifier information of a responding node; and receiving confirm to send Confirm To Send (CTS) information from the responding node.

A channel access method, a terminal device, and a network device are provided. The method includes: monitoring a request to send-downlink control channel according to first configuration information of the request to send-downlink control channel; and determining, according to a monitoring result from monitoring the request to send-downlink control channel, whether to perform channel access.

A transmission acknowledgment method, a terminal device, and a transmission node are provided. The transmission acknowledgment method is performed by a first terminal. The method includes: monitoring a first physical control channel based on monitoring configuration information of the first physical control channel; obtaining first control information transmitted by a transmission node on the first physical control channel, where the first control information includes RTS information for a plurality of target terminal devices, and the plurality of target terminal devices include the first terminal; and sending CTS information on a second physical control channel based on the RTS information.

According to an embodiment of the present disclosure, a user equipment (UE) may receive downlink control information (DCI) in a first fixed frame period (FFP) for frame based equipment (FBE) from a base station (BS), and perform a channel access procedure for a scheduled uplink (UL) transmission based on the DCI. In a first state in which it is indicated that the scheduled UL transmission is related to channel occupancy initiated by the BS, and the UE should perform channel sensing for the scheduled UL transmission, the UE may perform the channel access procedure for the scheduled UL transmission based on whether a resource for the scheduled UL transmission allocated by the DCI is confined within the first FFP in which the DCI is received.

Methods, systems, and apparatuses are provided for listen-before-talk (LBT) mode for random access response (RAR) in a wireless communication system so that RAR indication of channel access type and cyclic prefix (CP) extension can be more efficient. A method of a User Equipment (UE) can comprise initiating a random access procedure, receiving a RAR, wherein the RAR comprises a channel access type indication, and determining whether to perform LBT for a Msg3 based on the channel access type indication in RAR.

Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus generally includes a processing system configured to generate a frame for triggering transmission of a plurality of data units from a plurality of wireless nodes, a first interface configured to output the frame for transmission to the plurality of wireless nodes, and a second interface configured to obtain the plurality of data units after outputting the frame for transmission, wherein the plurality of data units have different lengths.

A random access method, a base station, an UE and a device with a storage function are disclosed. The random access method includes: the base station receiving a first message transmitted by the UE, the first message including a preamble message and a signal message; decoding the preamble message and the signal message respectively; if the decoding of preamble message is succeeded, but the decoding of signal message fails, the base station transmits a second message to the UE, and storing the signal message of decoding failure, the second message configured to request the UE to retransmit the signal message; receiving the third message transmitted by the UE, the third message including the signal message; using a chase combine mechanism to decode the third message according to the stored signal message in the first message. The present disclosure save time and improve the efficiency of random access.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, an indication of a resource allocation for a data communication having a known payload, the known payload comprising data associated with a machine learning process; and communicate with the base station based at least in part on the resource allocation. Numerous other aspects are provided.