A method for transmitting a sounding reference signal (SRS) by a by a user equipment (UE) includes: receiving, from a base station, first information on a number of SRS symbols configured for one slot and second information on a number of repetitions of symbols configured for transmission of an SRS; determining whether the number of repetitions is greater than the number of the SRS symbols; when the number of repetitions is greater than the number of the SRS symbols, determining the number of repetitions of the symbols by a value identical to the number of the SRS symbols; and transmitting the SRS based on the determined number of repetitions. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station, or a network.

A terminal is disclosed including a receiver that receives a system information block before establishing a radio resource control connection; and a processor that determines one physical uplink control channel (PUCCH) resource set from a plurality of PUCCH resource sets based on an index within the system information block, and determines one PUCCH resource from a plurality of PUCCH resources within the PUCCH resource set based on a control channel element (CCE) index and a PUCCH resource indicator field within a downlink control information (DCI), wherein all of the plurality of PUCCH resources includes a same number of symbols and a same start symbol index, and at least two PUCCH resources out of the plurality of PUCCH resources include different initial cyclic shift indexes. In other aspects, a radio communication method and a base station are also disclosed.

Wireless communications systems and methods related to providing frequency diversity for communications in an unlicensed spectrum are provided. A first wireless communication device communicates, with a second wireless communication device, an opportunistic frequency-switching configuration for a first frequency band and a second frequency band. The first frequency band and the second frequency band are shared by a first network operating entity and a second network operating entity. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in a first frequency band based on the opportunistic frequency-switching configuration. The first wireless communication device switches from the first frequency band to a second frequency band based on the opportunistic frequency-switching configuration. The first wireless communication device communicates, with the second wireless communication device after the switching, a second communication signal in the second frequency band based on the opportunistic frequency-switching configuration.

Systems and methods relating to frequency-selective Sounding Reference Signal (SRS) precoding and uplink transmission are disclosed. In some embodiments, a method of operation of a wireless device comprises transmitting SRS on a first set of frequency-domain resources, and receiving an uplink scheduling assignment for an uplink physical channel comprising a resource allocation of a second set of frequency-domain resources comprising: (a) one or more frequency-domain resources that are also included in the first set and (b) one or more frequency-domain resources that are not included in the first set. In order to form a precoded uplink channel, the method further comprises: for each frequency-domain resource in (a), applying a same precoding as applied to the SRS on the frequency-domain resource; and, for each frequency-domain resource in (b), applying a same precoding as applied to the SRS on a different frequency-domain resource. The method further comprises transmitting the precoded uplink channel.

Embodiments of the present disclosure provide a method and an apparatus for transmitting a Position Reference Signal (PRS), and an electronic device and a storage medium. The method for receiving the position reference signal can include sending different parts of the PRS on different symbols according to a bandwidth supported by a UE of a predetermined type.

In an aspect, a wireless node (e.g., UE or BS) measures, at a first hop of a frequency hopping scheme, a reference signal (RS) on a first sub-band of an effective RS bandwidth, and measures, at a second hop of the frequency hopping scheme, the RS on a second sub-band of the effective RS bandwidth, the first and second sub-bands of the effective RS bandwidth overlapping in part. In another aspect, a UE transmits, at a first hop of a frequency hopping scheme, a reference signal (RS) on a first sub-band of an effective RS bandwidth, and transmits, at a second hop of the frequency hopping scheme, the RS on a second sub-band of the effective RS bandwidth, the first and second sub-bands of the effective RS bandwidth overlapping in part.

Disclosed is a method for transmitting a sounding reference signal (SRS) for a plurality of uplink bands in a wireless communication system, according to various embodiments. Disclosed are the method and an apparatus therefor, the method comprising the steps of: receiving, from a base station, SRS configuration information for the plurality of uplink bands; and transmitting, to the base station, the SRS in each of the plurality of uplink bands, on the basis of the SRS configuration information. The SRS is transmitted via at least one SRS port allocated to each of the plurality of uplink bands by means of the SRS configuration information, and the at least one SRS port is allocated differently for each of the plurality of uplink bands.

The present disclosure discloses methods for determining frequency-domain locations, a terminal device, and a network device. The method includes the following. Determine one or more time-domain groups for transmitting repetition data, where each time-domain group includes one or more contiguous time-domain units. Determine a frequency-domain location corresponding to each time-domain group in the one or more time-domain groups.

A terminal is disclosed including a transmitter that transmits uplink control information and uplink data using an uplink shared channel; and a processor that, if frequency hopping is applied to the uplink shared channel, determines a mapping position for the uplink control information for each hop of the frequency hopping. In other aspects, a radio communication method for a terminal is also disclosed.

Aspects are provided which allow a base station to indicate use of a mini-slot based resource allocation in sidelink communications between a Tx UE and a Rx UE. Initially, the base station configures control information indicating a sidelink data resource for a mini-slot, and transmits the control information to a Tx UE. After the Tx UE receives the control information, the Tx UE transmits sidelink data in the sidelink data resource to a Rx UE. Similarly, the Rx UE receives the control information from either the Tx UE or the base station, and the Rx UE receives the sidelink data in the sidelink data resource from the Tx UE. Accordingly, the base station may schedule the Tx UE and Rx UE to communicate sidelink data in mini-slots rather than slots, thereby reducing scheduling latency, increasing the number of available resources, and achieving more flexibility in sidelink communications.