Method for transmitting and receiving sidelink signal in wireless communication system

    公开(公告)号:US12207290B2

    公开(公告)日:2025-01-21

    申请号:US17635328

    申请日:2020-08-18

    Abstract: An aspect of the present disclosure is a method for user equipment in a wireless communication system, wherein a physical sidelink control channel (PSCCH) and a physical sidelink shared channel (PSSCH) are received on an aggregation slot including a plurality of slots, and a sidelink signal is transmitted on a resource selected on the basis of at least one among a reference signal received power (RSRP), a received signal strength indication (RSSI), and a reference signal received quality (RSRQ), which are measured from the aggregation slot. The RSRP is measured from each of slots, on which a plurality of PSCCHs are received, among the plurality of slots on the basis of the plurality of PSCCHs being received on the aggregation slot.

    UE operation method related to sidelink PTRS in wireless communication system

    公开(公告)号:US11997037B2

    公开(公告)日:2024-05-28

    申请号:US18192036

    申请日:2023-03-29

    CPC classification number: H04L5/0048 H04W72/20

    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.

    Interleaving for code block
    6.
    发明授权

    公开(公告)号:US12021617B2

    公开(公告)日:2024-06-25

    申请号:US17594197

    申请日:2020-04-09

    CPC classification number: H04L1/0057 H04L1/189 H04L5/0048 H04W4/70 H04W92/18

    Abstract: According to an embodiment of the present disclosure, a method for performing SL communication by a first device is provided. The method comprises the steps of: determining a plurality of first bits on which interleaving is to be performed from among a plurality of bits of a first encoded code block and a plurality of second bits except for the plurality of first bits from among the plurality of bits of the first encoded code block; performing interleaving on the plurality of first bits; transmitting, to a second device, the plurality of first bits on which the interleaving has been performed, on a plurality of first REs related to the plurality of first bits; and transmitting, to the second device, the plurality of second bits on a plurality of second REs related to the plurality of second bits.

    UE operation method related to sidelink PTRS in wireless communication system

    公开(公告)号:US11764927B2

    公开(公告)日:2023-09-19

    申请号:US17809472

    申请日:2022-06-28

    CPC classification number: H04L5/0048 H04W72/0406

    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 APPARATUS FOR DETERMINING TIME DENSITY RELATED TO PT-RS IN NR V2X

    公开(公告)号:US20230254069A1

    公开(公告)日:2023-08-10

    申请号:US17926406

    申请日:2021-05-21

    CPC classification number: H04L1/1816 H04L5/0051 H04W72/25 H04W72/0446 H04W4/40

    Abstract: According to one embodiment, proposed is a method by which a first device performs wireless communication. The method may comprise the steps of: receiving sidelink control information (SCI) related to initial transmission of a transport block from a second device through a first physical sidelink control channel (PSCCH); receiving the transport block from the second device through a first physical sidelink shared channel (PSSCH) related to the first PSCCH; determining a resource related to a physical sidelink feedback channel (PSFCH) on the basis of an index of a slot and an index of a subchannel related to the first PSSCH; transmitting an sidelink hybrid automatic repeat request negative acknowledgment (SL HARQ NACK) related to the transport block to the second device on the basis of the resource related to the PSFCH; receiving SCI related to retransmission of the transport block from the second device through a second PSCCH; and determining a time density related to a phase-tracking reference signal (PT-RS) on the basis of the fact that the SCI related to the retransmission includes a modulation coding scheme (MCS) index field indicating a reserved state. For example, the time density related to the PT-RS may be determined on the basis of a reference MCS index value related to the MCS index field indicating the reserved state.

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