A first base station may receive, from a second base station, cell configuration parameters of one or more cells of the second base station. The cell configuration parameters may indicating at least one first information element (IE) indicating a first identifier of a first cell of the one or more cells, at least one second IE indicating that the first cell is an unlicensed cell, and at least one third IE indicating radio frequency channel number of the unlicensed cell. The first base station may send, to the second base station, a handover request message for a wireless device after receiving the cell configuration parameters.

A method for information transmission includes that: a network device determines a first time-domain resource available on a first carrier, where the first carrier is an unlicensed carrier and the first time-domain resource is in a first downlink transmission burst; and the network device sends first information to a terminal device through the first time-domain resource on the first carrier, where the first information is used to indicate time-domain resource information of a first transmission burst according to a first subcarrier spacing.

A wireless device receives a radio resource control (RRC) message that includes configuration parameters for scheduling a plurality of physical uplink shared channels (PUSCHs) via a downlink control information (DCI). In an embodiment, the configuration parameters may include an indication enabling a dynamic determination of a PUSCH of the plurality of PUSCHs for multiplexing an uplink control information (UCI). In an additional embodiment, the UCI may overlap with a first PUSCH of the plurality of PUSCHs. The wireless device may transmit the UCI via a second PUSCH of the plurality of PUSCHs in response to a failed listen-before-talk (LBT) procedure for the first PUSCH.

Wireless communications systems and methods related to transmission of reverse-link grants for anchor based sidelink communication are provided. A first user equipment (UE) determines a plurality of reverse-link grants for a respective plurality of UEs. The first UE transmits first sidelink control information (SCI) over a physical sidelink control channel (PSCCH). The first SCI may indicate whether user data follows in the physical sidelink shared channel (PSSCH). The first UE transmits a demodulation reference signal (DMRS) and second SCI over the PSSCH. The second SCI comprises the plurality of reverse-link grants in a block. The second SCI is rate matched from a with the DMRS and the third SCI being rate matched from the start of the PSSCH and including the block of reverse-link grants.

Disclosed in various embodiments are a method for configuring a bandwidth part in a wireless communication system, and a device for supporting same. As one specific example, disclosed in various embodiments are: a method by which a device identifies, confirms, or configures an initial bandwidth part in a wireless communication system; and a device for supporting same.

Methods, systems, and devices for wireless communications are described. A base station may identify a listen-before-talk (LBT) procedure to use for transmitting a downlink signal to a user equipment (UE) on a shared radio frequency spectrum band. The LBT procedure may be a group LBT procedure associated with a first set of contention window durations or an individual listen-before talk procedure associated with a second set of contention window durations. The base station may determine a contention window duration corresponding to the identified LBT procedure, perform the identified LBT procedure using the determined contention window duration, and transmit the downlink signal to the UE based on the performed LBT procedure.

A method and a device for receiving transmitting data in in a wireless local area network are provided. The device receives a physical layer protocol data unit (PPDU) from a station over a transmission bandwidth and determines whether the station is a member of a basic service set (BSS) managed by the device based on the PPDU. When the PPDU is a multi-user (MU)-PPDU, the AP determines that the station is not a member of the BSS managed by the AP. Such MU-PPDU includes a first signal field and a second signal field, the first signal field having bandwidth information indicating the transmission bandwidth, the second signal field having user-specific information with allocation for orthogonal frequency division multiple access (OFDMA) transmission.

The present disclosure relates to a method and a device therefor, the method comprising the steps of: obtaining, on the basis of not receiving information on a channel occupancy duration from a base station, channel state information based on a plurality of CSI-reference signals (CSI-RSs) which are all overlapped with, on a time domain, at least one from among a physical downlink shared channel (PDSCH) and an aperiodic CSI-RS; and transmitting the channel state information to the base station, wherein durations corresponding to the PDSCH and the aperiodic CSI-RS are consecutive time durations on the time domain.

A method of communicating between nodes on a plurality of channels within the unlicensed spectrum is disclosed where coordination of the acquiring of the different channels is provided so that a further channel is acquired prior to the occupancy time of the currently used channel expiring. The method involves determining at one node that a channel in the unlicensed band has been acquired for a predetermined occupancy time. Initiating a scan of at least one further channel within the unlicensed spectrum to determine if a further channel is available. Once a predetermined time has passed and within the predetermined occupancy time, acquiring the available channel by transmitting a signal on it.

A wireless device receives, from a base station, one or more radio resource control (RRC) messages that includes one or more configuration parameters for a cell. The one or more configuration parameters include a unified transmission configuration indicator (TCI) state type parameter that indicates a unified TCI state type among a separate unified TCI state type and a joint unified TCI state type. The wireless device may then communicate, with the base station and via the cell, based on the indicated unified TCI state type.