In the multiple short sequence based SRS, multiple items of sequence data having a short sequence length corresponding to a partial band are used for transmitting SRS in discontinuous bands. In the multiple short sequence based SRS, a terminal specifies a frequency domain to be used for transmitting a reference signal using predetermined sequence data, applies a phase shift index associated with the specified frequency domain to the reference signal, and transmits the reference signal to which the phase shift index is applied by using the specified frequency domain.

A method and user equipment (UE) are provided. An assistance request is transmitted from a first UE to at least one second UE. Assistance information including an indication of a set of one or more resources for transmission is received by the first UE, from the at least one second UE. It is determined that the set includes a reserved resource. At least one resource, other than the reserved resource, is selected from the set of one or more resources, for transmission by the first UE.

According to certain embodiments, a method by a wireless device is provided for beam-based random access. The method includes receiving, from a network node, a handover command, the handover command comprising at least one suitability threshold. Measurements of each of a plurality of beams detected by the wireless device are performed. The measurements of the plurality of beams are compared to the at least one suitability threshold. A particular beam is selected based on the comparison, and a random access procedure is initiated.

Disclosed are a method and device for transmitting a power saving signal, the method includes: sending, by a network device, a power saving signal to a terminal device, wherein the power saving signal comprises a first sequence, the first sequence is used to indicate at least part of identification information related to the terminal device, and/or the first sequence is used for the terminal device to perform time-frequency synchronization; wherein the identification information related to the terminal device comprises: an identity of a device group which the terminal device belongs to, a device identity of the terminal device, and Physical Cell Identification (PCI) information of a cell where the terminal device resides.

Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit (102) sets the cell IDs of all cells in the CoMP set in a cell selection unit (104), and a serving cell setting unit (103) sets the cell ID of the serving cell in the cell selection unit (104). The cell selection unit (104) selects the cell ID having a number closest to the cell ID of the serving cell from the cells in the CoMP set. A sequence information calculation unit (106) derives a sequence group number from the selected cell ID, and the sequence information calculation unit (106) calculates a sequence number from the derived sequence group number and a transmission bandwidth of the DM-RS.

A method and device for transmitting and receiving signals with a terrestrial station by using a radio frame including five subframes each of which includes a plurality of slots used for the uplink signal and/or the downlink signal are provided.

Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a power reservation signal of a sub-slot resource pool (RP) to an AGC symbol location of a slot RP and transmitting, to at least one other UE, the power reservation signal, wherein a transmit power level of the power reservation signal is based on an estimated transmit power level associated with at least one sub-slot.

Techniques are provided for radio frequency (RF) sensing using a single wireless device. An example method for determining a distance to an object with radio frequency sensing includes transmitting a radio frequency signal with a transmit channel on a wireless device, receiving a leakage signal with a receive channel on the wireless device at a first time, such that the leakage signal is based on the radio frequency signal, receiving a reflected signal with the receive channel on the wireless device at a second time, such that the reflected signal is based on the radio frequency signal reflecting from the object, and determining the distance to the object based at least in part on a difference between the first time and the second time.

Provided are a signal processing method and apparatus, a first communication node, a second communication node, and a storage medium. The signal processing method includes acquiring N first sequences, combining the N first sequences to obtain a second sequence, and generating a signal according to the second sequence. N is an integer greater than or equal to 2.

This document discloses a solution for generating a reference symbol sequence for a radio transmitter. According to an aspect, a method comprises in a transmitter apparatus: generating a Zadoff-Chu sequence for a reference signal; performing a frequency-domain cyclic shift on the Zadoff-Chu sequence; extending the cyclically shifted sequence to a desired length; performing a time-domain cyclic shift on the sequence having the desired length, resulting in a reference symbol sequence; arranging the reference symbol sequence to at least some resource elements of a set of physical resource blocks, and causing transmission of the reference symbol sequence in the set of physical resource blocks.