A method for determining sidelink resource is provided. The method includes enabling a power saving mechanism by a first node, and determining a resource for sidelink transmission based on the power saving mechanism.

A base station may select whether to configure one or more second RACH reference slots associated with a plurality of first RACH reference slots in a RACH configuration period. The one or more second RACH reference slots may be new RACH reference slots, and the plurality of first RACH reference slots may be previously existing RACH reference slots. The base station may identify, upon selecting to configure the one or more second RACH reference slots, a RACH reference slot configuration including the one or more second RACH reference slots associated with the plurality of first RACH reference slots in the RACH configuration period. The base station may transmit, to at least one UE, an indication of the RACH reference slot configuration including the one or more second RACH reference slots associated with the plurality of first RACH reference slots.

Aspects are provided which allow coverage enhancement and support in NTNs for repetition, frequency hopping, and antenna switching during msgA transmissions based on a preamble-to-PO mapping. In one aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with at least one PO for two-step random access, where the PO spans a time interval greater than one slot. In another aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with a plurality of POs for two-step random access. In a further aspect, the base station provides the UE a plurality of configurations each indicating a PO for two-step random access. In an additional aspect, the base station provides the UE a configuration indicating a guard band for a PO for two-step random access, where the guard band is indicated in units of subcarriers spanning less than one PRB.

Provided are a configuration signaling execution control method and apparatus, a device, a system and a storage medium. The method includes: in a beam recovery process and in a case of receiving configuration signaling, deciding an execution environment of the configuration signaling; and determining an execution policy of the configuration signaling according to a decision result.

A data transmission method includes that a transmitter sends a random access request by using a first random access resource. The transmitter supports a first modulation scheme and a second modulation scheme, the second modulation scheme includes a high-order modulation scheme whose modulation order is higher than the modulation order of the first modulation scheme, and the first random access resource is configured to the transmitter supporting the second modulation scheme. The method further includes that the transmitter performs a data modulation in accordance with a target modulation scheme. The modulation is performed under a direction of a received random access response, and the target modulation scheme is one of the first modulation scheme and the second modulation scheme.

A method and a device in a node used for wireless communication are disclosed in the present disclosure. A first node transmits a first sequence and a first radio signal, the first sequence being associated with the first radio signal, the first sequence being transmitted on a first random-access channel, and a first bit block being used for generating the first radio signal; receives a second radio signal, the second radio signal comprising a first information block; and transmits a second sequence and a third radio signal, the second sequence being associated with the third radio signal, and the second sequence being transmitted on a second random-access channel, the first bit block being used for generating the third radio signal; the first information block comprises a first sequence index, the first sequence index corresponds to the first sequence.

Methods and apparatuses are disclosed for signaling unused channel occupancy time (COT) to the gNB for COT sharing among other UEs. Upon determining that a portion of the maximum COT (MCOT) provided to the UE will be unused, the UE can generate COT sharing information for transmission back to the gNB. The COT sharing information identifies a starting point and a duration (e.g., a number of consecutive slots) of the unused portion of the MCOT. This information is then encoded into configured grant uplink control information (UG-UCI) and transmitted to the gNB as part of the uplink transmission. In aspects, the unused portion may begin part-way through a slot. In this instance, a starting symbol of the unused portion or an ending symbol of the used portion may also be encoded into the uplink transmission. In this manner, unused COT is not wasted, but rather repurposed by the gNB.

A wireless communication method, a terminal device and a network device are provided. In the wireless communication method, the terminal device transmits a first timing advance (TA) value of the terminal device to a network device in response to that the terminal device satisfies a preset condition.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station in a wireless communications system. The UE may perform a random access procedure to communicate with the base station. The base station may configure the UE with different sets of preamble parameters for different types of UEs. The UE may generate a random access preamble based on the sets of preamble parameters according to the type of the UE. The base station may indicate a location of the base station to the UE. The UE may identify a location of the UE. The UE may determine a pre-compensation timing based on a distance from the two locations. The UE and the base station may transmit subsequent communication according to the random access preamble, the pre-compensation timing, or any combination thereof.

A wireless station is allocated use of a time slot in a given direction, uplink or downlink, on a given channel. The wireless station monitors for presence of wireless energy during a portion of the time slot. Based on a detected level of the wireless energy in the time slot, the wireless station controls transmission of wireless communications in a direction opposite to the configured direction in a remaining part of the time slot.