UE OPERATION METHOD RELATED TO SIDELINK PTRS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220376859A1

    公开(公告)日:2022-11-24

    申请号:US17809472

    申请日:2022-06-28

    Abstract: An embodiment is a method for a user equipment (UE) to transmit a phase-tracking reference signal (PTRS) related to sidelink in a wireless communication system, the method comprising the steps of: generating demodulation reference signals (DMRSs) related to a physical sidelink shared channel (PSSCH); generating a PTRS related to the PSSCH; and transmitting the PTRS and at least a portion of the DMRSs, wherein a DMRS sequence mapped to a prescribed position in a first PSSCH symbol in which the DMRSs are transmitted is used for generating the PTRS, and the prescribed position corresponds to a frequency location at which the PTRS is transmitted and includes a frequency location at which the generated DMRSs are not transmitted.

    METHOD AND DEVICE FOR DETERMINING SIDELINK TRANSMISSION POWER IN NR V2X

    公开(公告)号:US20220361111A1

    公开(公告)日:2022-11-10

    申请号:US17638462

    申请日:2020-08-25

    Abstract: According to an embodiment of the present disclosure, provided is a method for a first device to perform sidelink communication. The method may include the steps of: determining sidelink transmission power, for transmission to a second device, as first transmission power on the basis of an OLPC parameter and at least one parameter pertaining to SL PL; transmitting a first PSCCH or a first PSSCH to the second device on the basis of the first transmission power; determining the sidelink transmission power as second transmission power on the basis of a transmission power control operation for the first transmission power being triggered; and transmitting a second PSCCH or a second PSSCH to the second device on the basis of the second transmission power.

    METHOD AND APPARATUS FOR TRANSMITTING SL HARQ FEEDBACK IN NR V2X

    公开(公告)号:US20220329389A1

    公开(公告)日:2022-10-13

    申请号:US17705210

    申请日:2022-03-25

    Abstract: According to an embodiment of the present disclosure, provided is a method for performing wireless communication by a first apparatus. The method may comprise: obtaining sidelink (SL) discontinuous reception (DRX) configuration including information related to an active time of a second apparatus, receiving, from a base station, first information related to a first SL resource and second information related to an uplink (UL) resource, and transmitting, to the base station, SL hybrid automatic repeat request (HARQ) feedback information on the UL resource based on a time domain of the first SL resource not being included within the active time of the second apparatus. The SL HARQ feedback information may be SL HARQ acknowledge (ACK) information.

    METHOD FOR TRANSMITTING AND RECEIVING SIDELINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220304031A1

    公开(公告)日:2022-09-22

    申请号:US17634219

    申请日:2020-08-11

    Abstract: According to an aspect of the present disclosure, disclosed is a method of a user equipment in a wireless communication system comprising: receiving a physical sidelink control channel (PSCCH); receiving a physical sidelink shared channel (PSSCH) on the basis of scheduling information included in the PSCCH; and transmitting a physical sidelink feedback channel (PSFCH) including hybrid automatic repeat request-acknowledged (HARQ-ACK) information for the PSSCH, wherein a scrambling sequence of the PSFCH is initialized on the basis of an ID value associated with initialization of the scrambling sequence, and the ID value is an integer greater than or equal to 1008.

    METHOD OF TRANSMITTING AND RECEIVING PSFCH IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20220303954A1

    公开(公告)日:2022-09-22

    申请号:US17700771

    申请日:2022-03-22

    Abstract: A method of transmitting and receiving a PSFCH in a wireless communication system and a device therefor are disclosed. The method performed by a first UE comprises receiving, from a second UE, a first PSCCH including first SCI for a PSSCH, receiving, from a third UE, a second PSCCH including first SCI, wherein a resource reserved by the first SCI overlaps a resource reserved by the first SCI for the PSSCH, determining a resource conflict in the resource reserved by the first SCI for the PSSCH using a RSRP measured based on the first PSCCH and a RSRP measured based on the second PSCCH, and transmitting, to the second UE, the PSFCH including conflict information indicating the resource conflict in the resource.

    METHOD AND APPARATUS FOR SELECTING SYNCHRONIZATION REFERENCE IN NR V2X

    公开(公告)号:US20220286982A1

    公开(公告)日:2022-09-08

    申请号:US17597413

    申请日:2020-07-13

    Abstract: Provided are a method for performing, by a first device, wireless communication, and an apparatus for supporting same. The method may comprise the steps of: receiving, from a second device, one or more sidelink synchronization signal blocks (S-SSBs) including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH); obtaining an average reference signal received power (RSRP) value for at least one S-SSB from among the one or more S-SSBs; and determining, on the basis of the average RSRP value, whether to select the second device as a synchronization reference.

    METHOD AND DEVICE FOR REPORTING INFORMATION ABOUT SL HARQ FEEDBACK IN NR V2X

    公开(公告)号:US20220279504A1

    公开(公告)日:2022-09-01

    申请号:US17630060

    申请日:2020-08-12

    Abstract: Provided are a method for a first device to perform wireless communication, and a device supporting same. The method may include the steps of: receiving first downlink control information (DCI), including information related to a first physical uplink control channel (PUCCH) resource and information related to sidelink (SL) resource allocation, from a base station through a first physical downlink control channel (PDCCH); transmitting a physical sidelink control channel (PSCCH) and a physical sidelink shared channel (PSSCH) to a second device on the basis of the information related to the SL resource allocation; receiving SL hybrid automatic repeat request (HARQ) feedback from the second device through a physical sidelink feedback channel (PSFCH) related to the PSSCH; receiving second DCI, including information related a second PUCCH resource and information related to downlink (DL) resource allocation, from the base station through a second PDCCH; receiving a physical downlink shared channel (PDSCH) related to the second PDCCH from the base station on the basis of information related to the DL resource allocation; and transmitting, on at least one of the first PUCCH resource or the second PUCCH resource, at least one of the SL HARQ feedback or HARQ feedback related to the PDSCH to the base station. Here, the first PUCCH resource and the second PUCCH resource may overlap in the time domain.

    METHOD AND APPARATUS FOR TRANSMISSION PRIORITIZATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220272721A1

    公开(公告)日:2022-08-25

    申请号:US17627526

    申请日:2020-10-29

    Abstract: The present disclosure relates to transmission prioritization in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving, from a network, information for a threshold related to a buffer status report (BSR); prioritizing a logical channel group (LCG) for the BSR based on the threshold, wherein a highest priority of one or more logical channels having data available for transmission in the LCG is lower than the threshold; prioritizing the BSR based on the prioritized LCG; creating a media access control (MAC) protocol data unit (PDU) comprising at least the prioritized BSR; and transmitting the MAC PDU.

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