Lg Electronics Inc.

Seongwon Go

Jiwon Kang

Jonghyun Park

Hyungtae Kim

Haewook Park

Jaehoon Chung

Kyuseok Kim

Sukhyon Yoon

Suckchel Yang

Kijun Kim

Seonwook Kim

Disclosed are a method and device for transmitting and receiving sounding reference signal in a wireless communication system. A method for transmitting a physical uplink shared channel (PUSCH) according to an embodiment of the present disclosure may comprise the steps of: transmitting, to a base station, terminal capability information related to antenna switching; receiving configuration information related to an SRS from the base station; and transmitting the SRS to the base station to the basis of the configuration information. The configuration information may include information about a plurality of SRS resource sets, the usage of which has been set to antenna switching, and antenna port information about the plurality of SRS resource sets.

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

A method and an apparatus for transmitting and receiving channel state information (CSI) in a wireless communication system are disclosed. A method of performing downlink reception by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a base station, configuration information for two or more control resource set (CORESET) groups, each of the two or more CORESET groups including at least one CORESET; receiving, from the base station, information indicating two or more transmission configuration indicator (TCI) states; and based on the two or more TCI states, updating TCI state information for the two or more CORESET groups. Here, at least one of the two or more CORESET groups may include a specific CORESET associated with a plurality of TCI states.

Method and apparatus for downlink transmission and reception in wireless communication system

Disclosed are a method and device for transmitting and receiving an uplink in a wireless communication system. A method by which a terminal performs uplink transmission in a wireless communication system according to one embodiment of the present disclosure comprises the steps of: receiving, from a base station, first configuration information related to mapping between one or more uplink reference signals (UL RS) and one or more downlink (DL) RS; receiving, from the base station, second configuration information related to a plurality of spatial parameter candidates for uplink transmission; and performing uplink transmission in N (N≥1) transmission opportunities (TO) on the basis of at least one among N uplink default spatial parameters and N pathloss reference signals (PL RS). The N uplink default spatial parameters are respectively associated with the N TOs. The N PL RSs are respectively associated with the N TOs. The default uplink spatial parameter for a specific TO among the N TOs may be: one spatial parameter, specified by a predefined rule, among the plurality of spatial parameter candidates based on the second configuration information; or a UL RS mapped to the one spatial parameter on the basis of the first configuration information.

Method and device for transmitting and receiving uplink transmission based on default spatial parameters in wireless communication system

A method and an apparatus for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system are disclosed. A method for transmitting the SRS by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a base station, configuration information related to an SRS resource set for the SRS, wherein the SRS resource set includes at least one SRS resource; and transmitting, to the base station, the SRS based on the at least one SRS resource. The configuration information may include information on at least one reference resource, and based on the SRS resource set being configured with a specific usage and one reference resource being configured by the configuration information, the SRS may be transmitted based on a first spatial parameter different from a second spatial parameter corresponding to the one reference resource.

Method and apparatus for transmitting and receiving uplink signal in a wireless communication

Disclosed are a method and a device for transmitting or receiving a PUSCH in a wireless communication system. A method for transmitting a physical uplink shared channel (PUSCH) according to an embodiment of the present disclosure may comprise the steps of: receiving first configuration information related to a sounding reference signal (SRS) from a base station; receiving downlink control information (DCI) for PUSCH scheduling from the base station; and transmitting the PUSCH to the base station. On the basis that the first configuration information includes information relating to multiple SRS resource sets, the PUSCH is transmitted at N (N is a natural number) transmission occasions (TOs), and the DCI includes multiple SRS resource indicator (SRI) fields, the PUSCH may be transmitted at each of the TOs on the basis of an SRS resource in an SRS resource set identified by one SRI field among the multiple SRI fields related to each of the TOs.

Method and device for transmitting or receiving PUSCH in wireless communication system

A method and apparatus for transmitting and receiving uplink in a wireless communication system are disclosed. A method for uplink transmission for beam failure recovery (BFR) according to an embodiment of the present disclosure includes: receiving, from a base station, configuration information related to BFR, wherein the configuration information includes information on a first beam failure detection (BFD) reference signal (RS) set and a second BFD RS set; assessing radio link quality for at least one of the first BFD RS set and the second BFD RS set; and based on detection of at least one of a first beam failure for the first BFD RS set and a second beam failure for the second BFD RS set, performing uplink transmission for BFR to the base station.

Method and apparatus for performing uplink transmission and receiving uplink transmission in wireless communication system

A method and an apparatus for uplink/downlink transmission and reception based on a beam linkage state in a wireless communication system are disclosed. A method for performing uplink transmission or downlink reception according to an embodiment of the present disclosure may comprise: receiving, from a base station (BS), information on a beam linkage state (BLS), wherein the BLS includes information on a mapping relation between reference transmission and reception and at least one target transmission and reception; receiving, from the BS, information on a first spatial parameter for the reference transmission and reception which is related to a specific BLS; and performing the uplink transmission or the downlink reception based on a second spatial parameter corresponding to the first spatial parameter.

Method and apparatus for uplink/downlink transmission/reception on basis of beam linkage state in wireless communication system

Disclosed are a method and apparatus for transmitting and receiving an uplink in a wireless communication system. The method for transmitting an uplink according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, configuration information associated with a pathloss reference signal (PL RS) of the uplink; receiving, from the base station, control information for updating a first PL RS; and transmitting the uplink to the base station, on the basis of an updated second PL RS. PL RSs for all uplinks that refer to the first PL RS may be updated to the second PL RS.

Method and apparatus for transmitting and receiving uplink in wireless communication system

A method and an apparatus for transmitting and receiving a signal based on a spatial parameter in a wireless communication system are disclosed. A method of performing downlink reception or uplink transmission by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving first downlink control information (DCI) including information on a spatial parameter; and performing the downlink reception or the uplink transmission, based on the spatial parameter included in the first DCI, and based on that the downlink reception is second DCI, a spatial parameter corresponding to the spatial parameter included in the first DCI may be applied for at least one specific control resource set (CORESET) among at least one CORESET configured for the UE.

Method and device for transmitting/receiving signal on basis of spatial parameters in wireless communication system

A method for transmitting a sounding reference signal (SRS) by a terminal in a wireless communication system according to an embodiment of the present specification comprises the steps of: receiving configuration information relating to transmission of a sounding reference signal (SRS); receiving downlink control information (DCI) triggering the transmission of the SRS; and transmitting the SRS. The SRS is based on at least one of a first SRS and a second SRS configured in a region different from that of the first SRS, and the second SRS is transmitted on the basis of a configuration relating to the timing of transmission of the first SRS.

Method and apparatus for transmitting or receiving sounding reference signal in wireless communication system

Disclosed are a method and device for transmitting/receiving sounding reference signals in a wireless communication system. A method for transmitting sounding reference signal (SRS) according to an embodiment of the present disclosure comprises the steps of: receiving configuration information related to N (N is a natural number) SRS resource sets from a base station; receiving, from the base station, downlink control information (DCI) for triggering the transmission of SRSs on M (M≤N, M is a natural number) SRS resource sets among the N SRS resource sets; and transmitting the SRSs on SRS resources of each of the M SRS resource sets to the base station. The M SRS resource sets may each be related to a different panel of the terminal.

Method and device for transmitting/receiving sounding reference signals in wireless communication system

A method and an apparatus for uplink transmission and reception based on a spatial parameter in a wireless communication system are disclosed. A method for performing uplink transmission by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a base station (BS), information on a specific spatial parameter among spatial parameter candidates including at least one of a first set of spatial parameters or a second set of spatial parameters; and performing the uplink transmission, to the BS, based on the specific spatial parameter, and the first set of spatial parameter may include at least one spatial parameter candidate related to a first cell and a first type of a reference signal (RS).

Method and apparatus for uplink transmission or reception based on spatial parameter in wireless communication system

A method for transmitting an uplink signal by means of a terminal in a wireless communication system, according to one embodiment of the present specification, comprises: receiving configuration information related to transmission of the uplink signal; receiving a message indicating an update of a panel related to the uplink signal; and transmitting the uplink signal on the basis of the configuration information and the message. On the basis of a specific panel being updated to a first panel through the message, the specific panel being configured in at least one specific uplink resource among uplink resources, a beam being configured in the at least one specific uplink resource is updated to a specific beam.

Method for transmitting and receiving uplink signal in wireless communications system, and device therefor

A method and device for performing beam failure recovery in a wireless communication system. A method performed by a user equipment (UE) in a wireless communication system may include: based on a beam failure being detected for at least one of two beam failure detection (BFD)-reference signal (RS) sets configured for at least one serving cell among a plurality of serving cells, triggering at least one beam failure recovery (BFR) procedure for the at least one of the two BFD-RS sets; based on the at least one BFR being triggered and not cancelled for a first secondary cell (SCell) among the at least one serving cell, generating an enhanced BFR media access control (MAC)-control element (CE) based on at least one available uplink-shared channel (UL-SCH) resource; and transmitting, to a base station, the enhanced BFR MAC-CE.

Method and device for recovering beam failure in wireless communication system

A method by which a terminal transmits an uplink signal in a wireless communication system, according to one embodiment of the present specification, comprises the steps of: receiving configuration information related to the transmission of the uplink signal; and transmitting the uplink signal on the basis of the configuration information. The configuration information includes a transmission configuration indicator state (TCI state). The uplink signal is transmitted on the basis of a specific panel and/or a specific spatial domain filter, according to the TCI state in which the panel ID and/or the reference RS is not configured.

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Seoul, South Korea

Seongwon Go