Methods, systems, and devices for channel access and listen-before-talk approaches for new radio operation in unlicensed bands and/or licensed bands. A gNB and a wireless transmit/receive unit (WTRU) may operate in unlicensed spectrum. The gNB may perform listen-before-talk operation, and when successful, may send a downlink control channel with a slot format indication (SFI) to the WTRU. There may also be a handshaking procedure with an exchange of a request to transmit (RTT) and a request to receive (RTR). Prior to receiving the downlink channel, the WTRU may monitor search spaces at a first level, and once the downlink channel is received the WTRU may monitor search spaces at a second level. At the end of transmission, the WTRU may revert back to monitoring search spaces at the first level. In one example, the first level may be a mini-slot level and the second level may be a slot level.

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 configuration parameters indicating: a control resource set (coreset) configured with a first transmission configuration indicator (TCI) state and a second TCI state; and a bitmap comprising a plurality of bits. Each bit of the plurality of bits indicates one of the first TCI state or the second TCI state and is for a respective repetition of repetitions of a downlink control information (DCI). The wireless device receive, via a search space associated with the coreset, each of a plurality of repetitions of a first DCI using an associated TCI state indicated by a respective bit of the plurality of bits.

Embodiments of the present application relate to a method and an apparatus for or small data transmission of a user equipment (UE) in an RRC_IDLE state or an RRC_INACTIVE state. According to an embodiment of the present application, a method can include: a method may include maintaining a priority variable for each logical channel of at least one logical channel; determining a value of the priority variable for each logical channel after performing a first logical channel prioritization (LCP) procedure; receiving a message indicating a MAC reset; and after receiving the message, in a second LCP procedure subsequent to the first LCP procedure, using the value as an initial value of the priority variable for each logical channel of the at least one logical channel. Embodiments of the present application can satisfy the QoS requirement and fairness for the traffics transmitted in the logical channels in NR systems.

A 3GPP LTE protocol enhancement realizes the full benefit of discontinuous reception (DRX) in Long Term Evolution networks by coordinating and aligning DRX operations for conserving power and timing overhead. A dual connectivity enabled User Equipment (UE) comprising a processor and transceiver is configured to align DRX configuration between counterpart Evolved Node Bs (eNB)s, wherein counterpart eNBs are a Master eNB (MeNB) and a Secondary eNB (SeNB) simultaneously connected to the UE, communicate system frame timing and system frame number (SFN) information between the counterpart eNBs, align DRX start offset (drxStartOffset) values for the counterpart eNBs according to the communicated system frame timing and SFN information to compensate for offsets in system frame timing, and allow the start of a DRX ON duration at specific frame or sub-frame times determined by the drxStartOffset values, after the expiration of a DRX inactivity timer.

A method of performed by a digital unit (DU) in a wireless communication system includes transmitting, to a radio unit (RU), a configuration message on a management plane, and receiving, from the RU, a plurality of user plane messages based on the configuration message, and the configuration message is used to configure a transmission order of the plurality of user plane messages, and the plurality of user plane messages correspond to a plurality of extended antenna-carriers (eAxCs).

This application provides example beam management methods, apparatus, and systems. In one example method, a terminal device can receive indication information from a network device. The terminal device can perform beam switching according to an arrangement order of transmission configuration indicator (TCI) states (TCI-states) in a second TCI list when the indication information is first indication information. Alternatively, the terminal device can perform beam switching according to a first TCI-state in a first TCI list when the indication information is second indication information, wherein the first TCI list comprises a plurality of TCI-states comprising the first TCI-state, and in the first TCI list, beams corresponding to TCI-states after the first TCI-state are to sequentially provide a service for the terminal device.

A method and a device in a node for wireless communications. A first receiver receives a first signaling; a first transmitter transmits a first signal in a first time-frequency resource pool, the first signal carries a first bit block; herein, the first signaling is used to determine the first time-frequency resource pool; the first bit block comprises K HARQ-ACK information bit(s); a first condition is a condition related to type(s) of HARQ-ACK comprised in the first bit block; when the first condition is not satisfied, a same offset value is used to determine both a number of time-frequency resource element(s) comprised in a first time-frequency resource sub-pool and a number of time-frequency resource element(s) comprised in the first reserved resource pool; when the first condition is satisfied, two different offset values are respectively used to determine a number of time-frequency resource element(s) comprised in a first time-frequency resource sub-pool.

Disclosed are a method for transmitting a reference signal, a network device, and a terminal device. The method comprises: the network device determines target resources for transmitting the reference signal, the target resource being some of transmission resources which can be used for transmitting the reference signal, and the target resources comprising at least one of frequency domain resources, time domain resources, and space domain resources; the network device transmits the reference signal to the terminal device on the target resources. According to the method for transmitting the reference signal, the network device, and the terminal device of embodiments of the present invention, energy saving of the network device can be realized, and meanwhile, interference between cells is avoided.

The present invention is designated to appropriately control intra-slot frequency hopping of an uplink channel/signal. A user terminal of the present invention includes a transmitting section that transmits an uplink data channel in one slot or over a plurality of slots, a receiving section that receives information related to frequency resource to which the uplink data channel is to be mapped, and a control section that controls frequency hopping of the uplink data channel in each slot, based on the information related to the frequency resource.