Method for transmitting and receiving sounding reference signal in wireless communication system and device therefor

    公开(公告)号:US11018822B2

    公开(公告)日:2021-05-25

    申请号:US16756260

    申请日:2019-02-21

    Abstract: The present disclosure provides a method for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system and a device therefor. Specifically, a method for transmitting, by a terminal, an SRS in a wireless communication system may comprise the steps of: receiving configuration information for transmission of the SRS from a base station; and transmitting the SRS to the base station by using one or more SRS resources for transmission of the SRS, the configuration information including the one or more SRS resources and information relating to the usage of the one or more SRS resources, wherein a guard period relating to the one or more SRS resources is configured, and when the transmissions of the guard period and a particular uplink channel configured for the terminal overlap each other, the priority between the guard period and the particular uplink channel is configured to be the same as that between the SRS and the particular uplink channel.

    Method and apparatus for performing beam failure recovery in a wireless communication

    公开(公告)号:US10979919B2

    公开(公告)日:2021-04-13

    申请号:US16409638

    申请日:2019-05-10

    Abstract: A beam failure recovery method in a wireless communication system is disclosed. The beam failure recovery method performed by a user equipment (UE) includes receiving, from a base station, configuration information about a candidate beam reference signal (RS) set, if RS received power (RSRP) values for all of candidate beam RSs and RSRP values for all of synchronization signal blocks (SSBs) connected to a physical random access channel (PRACH) do not exceed a threshold, selecting a CSI-RS within the candidate beam RS set and a beam RS for the BFR among all the SSBs, and transmitting a PRACH preamble to the base station via a PRACH resource connected to the beam RS.

    Method and apparatus for CSI-RS setting for beam management in wireless communication system

    公开(公告)号:US10972239B2

    公开(公告)日:2021-04-06

    申请号:US16476722

    申请日:2018-01-09

    Abstract: According to one embodiment of the present specification, a method for determining a beam to be used by a terminal for communication in an mmWave communication system can be provided. Here, the method for determining a beam to be used by a terminal for communication may comprise the steps of: receiving a CSI-RS from a base station; reporting a preferred primary beam to the base station on the basis of the received CSI-RS; receiving secondary beam information from the base station on the basis of the preferred primary beam; reporting a preferred secondary beam from among the secondary beam information to the base station; and receiving a setting of a CSI-RS resource from the base station on the basis of the preferred secondary beam. Here, the secondary beam information may include the preferred primary beam and at least one secondary beam to which QCL is applied.

    Method for uplink transmission and reception in wireless communication system and apparatus therefor

    公开(公告)号:US10965418B2

    公开(公告)日:2021-03-30

    申请号:US16725367

    申请日:2019-12-23

    Abstract: Performing uplink reception by a base station (BS) in a wireless communication system. In some implementations, a method includes: transmitting configuration information for a first sounding reference signal (SRS) that specifies a relation between the first SRS and a second SRS that is a reference for spatial beamforming of the first SRS, and based on the configuration information, receiving the first SRS which is transmitted by applying, to the first SRS, a first spatial beamforming that is identical to a second spatial beamforming used for transmission of the second SRS. The method further includes transmitting downlink control information (DCI) for uplink scheduling, where the DCI includes a SRS resource indication (SRI) and where a SRI field in the DCI carries the SRI, and where a bit width of the SRI field is based on a number of SRS resources in an SRS resource set configured for a user equipment (UE).

    Method for assigning PTRS for phase noise removal in wireless communication system, and device therefor

    公开(公告)号:US10965415B2

    公开(公告)日:2021-03-30

    申请号:US16497776

    申请日:2018-03-23

    Abstract: A method for a base station to transmit a signal allowing a terminal to remove phase noise in an mmWave communication system, according to an embodiment of the present specification, may be provided. Here, the method for transmitting a signal for removing phase noise comprises: a step of generating a phase tracking reference signal (PTRS) and a first RS; a step of assigning the PTRS and the first RS to a resource block; and a step of transmitting the assigned PTRS and first RS, wherein the step of assigning the PTRS and the first RS includes a step of changing a frequency location of the PTRS if the PTRS and the first RS collide in the resource block, wherein the changed PTRS frequency location may be changed to a frequency location, across frequencies on which a predetermined demodulation reference signal (DMRS) port, associated with the PTRS, in a DMRS port group is located, which is closest to the existing PTRS frequency location and avoids collision with the first RS.

Patent Agency Ranking