[go: up one dir, main page]

WO2021230695A1 - Procédé et dispositif pour signaler un retour harq de sl à une station de base en nr v2x - Google Patents

Procédé et dispositif pour signaler un retour harq de sl à une station de base en nr v2x Download PDF

Info

Publication number
WO2021230695A1
WO2021230695A1 PCT/KR2021/006050 KR2021006050W WO2021230695A1 WO 2021230695 A1 WO2021230695 A1 WO 2021230695A1 KR 2021006050 W KR2021006050 W KR 2021006050W WO 2021230695 A1 WO2021230695 A1 WO 2021230695A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
determined based
psfch
bwp
base station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2021/006050
Other languages
English (en)
Korean (ko)
Inventor
이승민
서한별
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to US17/924,760 priority Critical patent/US12382486B2/en
Priority to KR1020227039613A priority patent/KR20230010645A/ko
Priority to CN202180061478.3A priority patent/CN116158037A/zh
Publication of WO2021230695A1 publication Critical patent/WO2021230695A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present disclosure relates to a wireless communication system.
  • a sidelink refers to a communication method in which a direct link is established between user equipment (UE), and voice or data is directly exchanged between terminals without going through a base station (BS).
  • SL is being considered as one way to solve the burden of the base station due to the rapidly increasing data traffic.
  • V2X vehicle-to-everything refers to a communication technology that exchanges information with other vehicles, pedestrians, and infrastructure-built objects through wired/wireless communication.
  • V2X can be divided into four types: vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-network (V2N), and vehicle-to-pedestrian (V2P).
  • V2X communication may be provided through a PC5 interface and/or a Uu interface.
  • next-generation radio access technology in consideration of the above may be referred to as a new radio access technology (RAT) or a new radio (NR).
  • RAT new radio access technology
  • NR new radio
  • V2X vehicle-to-everything
  • FIG. 1 is a diagram for explaining a comparison of V2X communication based on RAT before NR and V2X communication based on NR.
  • the embodiment of FIG. 1 may be combined with various embodiments of the present disclosure.
  • V2X message may include location information, dynamic information, attribute information, and the like.
  • the UE may transmit a periodic message type CAM and/or an event triggered message type DENM to another UE.
  • V2X scenarios are being presented in NR.
  • various V2X scenarios may include vehicle platooning, advanced driving, extended sensors, remote driving, and the like.
  • a UL resource may be configured for the terminal.
  • the UE may determine SL HARQ feedback information (eg, ACK or NACK) based on monitoring for a physical sidelink feedback channel (PSFCH) resource, and the UE transmits the SL HARQ feedback information based on the UL resource to the base station. can be sent to Through this, the base station can determine whether to allocate additional resources to the terminal.
  • SL HARQ feedback information eg, ACK or NACK
  • PSFCH physical sidelink feedback channel
  • the minimum time gap needs to be efficiently adjusted by reflecting the characteristics of SL communication.
  • a method for a first device to perform wireless communication includes: receiving, from a base station, information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station; transmitting first sidelink control information (SCI) to a second device through a physical sidelink control channel (PSCCH); transmitting a second SCI and MAC PDU (medium access control protocol data unit) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH; determining a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH; and transmitting the SL HARQ feedback for the MAC PDU to the base station based on the UL resource.
  • SCI sidelink control information
  • PSSCH physical sidelink shared channel
  • PSFCH physical sidelink feedback channel
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numonology of the UL BWP, where N is the numerology of the SL BWP and the It may be determined based on the minimum value among the numerologies of the UL BWP, and X may be determined based on information related to priority.
  • a first device for performing wireless communication may include one or more memories for storing instructions; one or more transceivers; and one or more processors connecting the one or more memories and the one or more transceivers.
  • the one or more processors execute the instructions to receive, from a base station, information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station; transmit first sidelink control information (SCI) to the second device through a physical sidelink control channel (PSCCH); transmit a second SCI and a MAC PDU (medium access control protocol data unit) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH; determine a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH; and based on the UL resource, the SL HARQ feedback for the MAC PDU may be transmitted to the base station.
  • SCI sidelink control information
  • PSSCH physical sidelink shared channel
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numerology of the UL BWP, where N is the numerology of the SL BWP and the It may be determined based on the minimum value among the numerologies of the UL BWP, and X may be determined based on information related to priority.
  • the terminal can efficiently perform SL communication.
  • FIG. 1 is a diagram for explaining a comparison of V2X communication based on RAT before NR and V2X communication based on NR.
  • FIG. 2 shows a structure of an NR system according to an embodiment of the present disclosure.
  • FIG 3 illustrates a radio protocol architecture according to an embodiment of the present disclosure.
  • FIG. 4 shows the structure of an NR radio frame according to an embodiment of the present disclosure.
  • FIG. 5 illustrates a slot structure of an NR frame according to an embodiment of the present disclosure.
  • FIG. 6 shows an example of a BWP according to an embodiment of the present disclosure.
  • FIG. 7 illustrates a terminal performing V2X or SL communication, according to an embodiment of the present disclosure.
  • FIG. 8 illustrates a procedure for a terminal to perform V2X or SL communication according to a transmission mode, according to an embodiment of the present disclosure.
  • FIG 9 illustrates three types of casts according to an embodiment of the present disclosure.
  • FIG. 10 illustrates a resource unit for CBR measurement according to an embodiment of the present disclosure.
  • FIG. 11 illustrates a procedure in which a UE reports SL HARQ feedback to a base station according to an embodiment of the present disclosure.
  • FIG. 12 illustrates a mapping method between a PSSCH resource and a PSFCH resource and a mapping between a PSFCH resource and a UL resource according to an embodiment of the present disclosure.
  • FIG. 13 illustrates a method for a first device to perform wireless communication, according to an embodiment of the present disclosure.
  • FIG. 14 illustrates a method for a base station to perform wireless communication, according to an embodiment of the present disclosure.
  • FIG. 15 shows a communication system 1 according to an embodiment of the present disclosure.
  • FIG. 16 illustrates a wireless device according to an embodiment of the present disclosure.
  • FIG. 17 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure.
  • FIG. 18 illustrates a wireless device according to an embodiment of the present disclosure.
  • FIG. 19 illustrates a portable device according to an embodiment of the present disclosure.
  • FIG. 20 illustrates a vehicle or an autonomous driving vehicle according to an embodiment of the present disclosure.
  • a or B (A or B) may mean “only A”, “only B”, or “both A and B”.
  • a or B (A or B)” herein may be interpreted as “A and/or B (A and/or B)”.
  • A, B or C(A, B or C) herein means “only A”, “only B”, “only C”, or “any and any combination of A, B and C ( any combination of A, B and C)”.
  • a slash (/) or a comma (comma) may mean “and/or”.
  • A/B may mean “A and/or B”. Accordingly, “A/B” may mean “only A”, “only B”, or “both A and B”.
  • A, B, C may mean “A, B, or C”.
  • At least one of A and B may mean “only A”, “only B” or “both A and B”. Also, in the present specification, the expression “at least one of A or B” or “at least one of A and/or B” means “at least one of A and/or B”. It can be interpreted the same as "A and B (at least one of A and B)”.
  • At least one of A, B and C means “only A”, “only B”, “only C”, or “A, B and C” any combination of A, B and C”. Also, “at least one of A, B or C” or “at least one of A, B and/or C” means can mean “at least one of A, B and C”.
  • parentheses used herein may mean “for example”.
  • PDCCH control information
  • PDCCH control information
  • parentheses used herein may mean “for example”.
  • PDCCH control information
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • CDMA may be implemented with a radio technology such as universal terrestrial radio access (UTRA) or CDMA2000.
  • TDMA may be implemented with a radio technology such as global system for mobile communications (GSM)/general packet radio service (GPRS)/enhanced data rates for GSM evolution (EDGE).
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • EDGE enhanced data rates for GSM evolution
  • OFDMA may be implemented with a wireless technology such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and evolved UTRA (E-UTRA).
  • IEEE 802.16m is an evolution of IEEE 802.16e, and provides backward compatibility with a system based on IEEE 802.16e.
  • UTRA is part of the universal mobile telecommunications system (UMTS).
  • 3rd generation partnership project (3GPP) long term evolution (LTE) is a part of evolved UMTS (E-UMTS) using evolved-UMTS terrestrial radio access (E-UTRA), and employs OFDMA in downlink and SC in uplink - Adopt FDMA.
  • LTE-A (advanced) is an evolution of 3GPP LTE.
  • 5G NR is a successor technology of LTE-A, and is a new clean-slate type mobile communication system with characteristics such as high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low frequency bands below 1 GHz to intermediate frequency bands from 1 GHz to 10 GHz, and high frequency (millimeter wave) bands above 24 GHz.
  • 5G NR is mainly described, but the technical idea according to an embodiment of the present disclosure is not limited thereto.
  • FIG. 2 shows a structure of an NR system according to an embodiment of the present disclosure.
  • the embodiment of FIG. 2 may be combined with various embodiments of the present disclosure.
  • a Next Generation-Radio Access Network may include a base station 20 that provides user plane and control plane protocol termination to the terminal 10 .
  • the base station 20 may include a next generation-Node B (gNB) and/or an evolved-NodeB (eNB).
  • the terminal 10 may be fixed or mobile, and other terms such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a mobile terminal (MT), and a wireless device can be called
  • the base station may be a fixed station communicating with the terminal 10 , and may be referred to as a base transceiver system (BTS), an access point, or other terms.
  • BTS base transceiver system
  • the embodiment of FIG. 2 exemplifies a case including only gNBs.
  • the base stations 20 may be connected to each other through an Xn interface.
  • the base station 20 may be connected to a 5G core network (5G Core Network: 5GC) through an NG interface. More specifically, the base station 20 may be connected to an access and mobility management function (AMF) 30 through an NG-C interface, and may be connected to a user plane function (UPF) 30 through an NG-U interface.
  • AMF access and mobility management function
  • UPF user plane function
  • the layers of the Radio Interface Protocol between the terminal and the network are based on the lower three layers of the Open System Interconnection (OSI) standard model widely known in communication systems. layer), L2 (layer 2, second layer), and L3 (layer 3, third layer).
  • OSI Open System Interconnection
  • L2 layer 2, second layer
  • L3 layer 3, third layer
  • the physical layer belonging to the first layer provides an information transfer service using a physical channel
  • the RRC (Radio Resource Control) layer located in the third layer is a radio resource between the terminal and the network. plays a role in controlling To this end, the RRC layer exchanges RRC messages between the terminal and the base station.
  • FIG. 3 illustrates a radio protocol architecture according to an embodiment of the present disclosure.
  • the embodiment of FIG. 3 may be combined with various embodiments of the present disclosure.
  • Fig. 3 (a) shows a radio protocol stack of a user plane for Uu communication
  • Fig. 3 (b) is a radio protocol of a control plane for Uu communication.
  • FIG. 3C shows a radio protocol stack of a user plane for SL communication
  • FIG. 3D shows a radio protocol stack of a control plane for SL communication.
  • a physical layer provides an information transmission service to an upper layer using a physical channel.
  • the physical layer is connected to a medium access control (MAC) layer, which is an upper layer, through a transport channel.
  • MAC medium access control
  • Data moves between the MAC layer and the physical layer through the transport channel.
  • Transmission channels are classified according to how and with what characteristics data is transmitted over the air interface.
  • the physical channel may be modulated in an Orthogonal Frequency Division Multiplexing (OFDM) scheme, and time and frequency are used as radio resources.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the MAC layer provides a service to a radio link control (RLC) layer, which is an upper layer, through a logical channel.
  • RLC radio link control
  • the MAC layer provides a mapping function from a plurality of logical channels to a plurality of transport channels.
  • the MAC layer provides a logical channel multiplexing function by mapping a plurality of logical channels to a single transport channel.
  • the MAC sublayer provides data transfer services on logical channels.
  • the RLC layer performs concatenation, segmentation, and reassembly of RLC service data units (SDUs).
  • SDUs RLC service data units
  • the RLC layer has a transparent mode (Transparent Mode, TM), an unacknowledged mode (Unacknowledged Mode, UM) and an acknowledged mode (Acknowledged Mode).
  • TM Transparent Mode
  • UM Unacknowledged Mode
  • AM acknowledged Mode
  • AM RLC provides error correction through automatic repeat request (ARQ).
  • the RRC (Radio Resource Control) layer is defined only in the control plane.
  • the RRC layer is responsible for controlling logical channels, transport channels and physical channels in relation to configuration, re-configuration, and release of radio bearers.
  • RB is in the first layer (physical layer or PHY layer) and second layer (MAC layer, RLC layer, PDCP (Packet Data Convergence Protocol) layer, SDAP (Service Data Adaptation Protocol) layer) for data transfer between the terminal and the network.
  • Logical path provided by
  • the functions of the PDCP layer in the user plane include delivery of user data, header compression and ciphering.
  • the functions of the PDCP layer in the control plane include transmission of control plane data and encryption/integrity protection.
  • the SDAP Service Data Adaptation Protocol
  • the SDAP layer performs mapping between QoS flows and data radio bearers, and marking QoS flow identifiers (IDs) in downlink and uplink packets.
  • Setting the RB means defining the characteristics of a radio protocol layer and channel to provide a specific service, and setting each specific parameter and operation method.
  • the RB may be further divided into a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB).
  • SRB Signaling Radio Bearer
  • DRB Data Radio Bearer
  • an RRC_INACTIVE state is additionally defined, and a UE in an RRC_INACTIVE state may release a connection to a base station while maintaining a connection to the core network.
  • a downlink transmission channel for transmitting data from the network to the terminal there are a BCH (Broadcast Channel) for transmitting system information and a downlink SCH (Shared Channel) for transmitting user traffic or control messages. Traffic or control messages of downlink multicast or broadcast services may be transmitted through a downlink SCH or may be transmitted through a separate downlink multicast channel (MCH).
  • a random access channel RACH
  • SCH uplink shared channel
  • the logical channels that are located above the transport channel and are mapped to the transport channel include a Broadcast Control Channel (BCCH), a Paging Control Channel (PCCH), a Common Control Channel (CCCH), a Multicast Control Channel (MCCH), and a Multicast Traffic Channel (MTCH). channels), etc.
  • BCCH Broadcast Control Channel
  • PCCH Paging Control Channel
  • CCCH Common Control Channel
  • MCCH Multicast Control Channel
  • MTCH Multicast Traffic Channel
  • FIG. 4 shows the structure of an NR radio frame according to an embodiment of the present disclosure.
  • the embodiment of FIG. 4 may be combined with various embodiments of the present disclosure.
  • radio frames may be used in uplink and downlink transmission in NR.
  • a radio frame has a length of 10 ms and may be defined as two 5 ms half-frames (HF).
  • a half-frame may include 5 1ms subframes (Subframe, SF).
  • a subframe may be divided into one or more slots, and the number of slots in a subframe may be determined according to a subcarrier spacing (SCS).
  • SCS subcarrier spacing
  • Each slot may include 12 or 14 OFDM(A) symbols according to a cyclic prefix (CP).
  • CP cyclic prefix
  • each slot may include 14 symbols.
  • each slot may include 12 symbols.
  • the symbol may include an OFDM symbol (or a CP-OFDM symbol), a single carrier-FDMA (SC-FDMA) symbol (or a Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) symbol).
  • Table 1 below shows the number of symbols per slot (N slot symb ), the number of slots per frame (N frame,u slot ) and the number of slots per subframe (N subframe, u slot ).
  • Table 2 illustrates the number of symbols per slot, the number of slots per frame, and the number of slots per subframe according to SCS when the extended CP is used.
  • OFDM(A) numerology eg, SCS, CP length, etc.
  • OFDM(A) numerology eg, SCS, CP length, etc.
  • an (absolute time) interval of a time resource eg, a subframe, a slot, or a TTI
  • a TU Time Unit
  • multiple numerology or SCS to support various 5G services may be supported. For example, when SCS is 15 kHz, wide area in traditional cellular bands can be supported, and when SCS is 30 kHz/60 kHz, dense-urban, lower latency) and a wider carrier bandwidth may be supported. For SCS of 60 kHz or higher, bandwidths greater than 24.25 GHz may be supported to overcome phase noise.
  • the NR frequency band may be defined as two types of frequency ranges.
  • the two types of frequency ranges may be FR1 and FR2.
  • the numerical value of the frequency range may be changed, for example, the two types of frequency ranges may be as shown in Table 3 below.
  • FR1 may mean "sub 6GHz range”
  • FR2 may mean “above 6GHz range”
  • mmW millimeter wave
  • FR1 may include a band of 410 MHz to 7125 MHz as shown in Table 4 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) included in FR1 may include an unlicensed band. The unlicensed band may be used for various purposes, for example, for communication for a vehicle (eg, autonomous driving).
  • FIG. 5 illustrates a slot structure of an NR frame according to an embodiment of the present disclosure.
  • the embodiment of FIG. 5 may be combined with various embodiments of the present disclosure.
  • a slot includes a plurality of symbols in the time domain.
  • one slot may include 14 symbols, but in the case of an extended CP, one slot may include 12 symbols.
  • one slot may include 7 symbols, but in the case of an extended CP, one slot may include 6 symbols.
  • a carrier wave includes a plurality of subcarriers in the frequency domain.
  • a resource block (RB) may be defined as a plurality of (eg, 12) consecutive subcarriers in the frequency domain.
  • BWP Bandwidth Part
  • P Physical Resource Block
  • a carrier may include a maximum of N (eg, 5) BWPs. Data communication can be performed through the activated BWP.
  • Each element may be referred to as a resource element (RE) in the resource grid, and one complex symbol may be mapped.
  • RE resource element
  • a BWP (Bandwidth Part) may be a contiguous set of PRBs (physical resource blocks) in a given neurology.
  • a PRB may be selected from a contiguous subset of a common resource block (CRB) for a given neuronology on a given carrier.
  • CRB common resource block
  • the BWP may be at least one of an active BWP, an initial BWP, and/or a default BWP.
  • the UE may not monitor downlink radio link quality in a DL BWP other than an active DL BWP on a PCell (primary cell).
  • the UE may not receive a PDCCH, a physical downlink shared channel (PDSCH), or a reference signal (CSI-RS) (except for RRM) outside of the active DL BWP.
  • the UE may not trigger CSI (Channel State Information) reporting for the inactive DL BWP.
  • CSI Channel State Information
  • the UE may not transmit a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) outside the active UL BWP.
  • the initial BWP may be given as a contiguous set of RBs for a maintaining minimum system information (RMSI) CORESET (control resource set) (set by a physical broadcast channel (PBCH)).
  • RMSI minimum system information
  • PBCH physical broadcast channel
  • the initial BWP may be given by a system information block (SIB) for a random access procedure.
  • SIB system information block
  • the default BWP may be set by a higher layer.
  • the initial value of the default BWP may be the initial DL BWP.
  • the terminal may switch the active BWP of the terminal to the default BWP.
  • BWP may be defined for SL.
  • the same SL BWP can be used for transmission and reception.
  • the transmitting terminal may transmit an SL channel or an SL signal on a specific BWP
  • the receiving terminal may receive an SL channel or an SL signal on the specific BWP.
  • the SL BWP may be defined separately from the Uu BWP, and the SL BWP may have separate configuration signaling from the Uu BWP.
  • the terminal may receive the configuration for the SL BWP from the base station/network.
  • the terminal may receive the configuration for Uu BWP from the base station/network.
  • the SL BWP may be configured (in advance) for the out-of-coverage NR V2X terminal and the RRC_IDLE terminal within the carrier. For a UE in RRC_CONNECTED mode, at least one SL BWP may be activated in a carrier.
  • FIG. 6 shows an example of a BWP according to an embodiment of the present disclosure.
  • the embodiment of FIG. 6 may be combined with various embodiments of the present disclosure. In the embodiment of FIG. 6 , it is assumed that there are three BWPs.
  • a common resource block may be a numbered carrier resource block from one end to the other end of the carrier band.
  • the PRB may be a numbered resource block within each BWP.
  • Point A may indicate a common reference point for a resource block grid (resource block grid).
  • BWP may be set by a point A, an offset from the point A (N start BWP ), and a bandwidth (N size BWP ).
  • the point A may be an external reference point of the PRB of the carrier to which subcarrier 0 of all neumatologies (eg, all neumonologies supported by the network in that carrier) is aligned.
  • the offset may be the PRB spacing between point A and the lowest subcarrier in a given numerology.
  • the bandwidth may be the number of PRBs in a given numerology.
  • V2X or SL communication will be described.
  • a Sidelink Synchronization Signal is an SL-specific sequence and may include a Primary Sidelink Synchronization Signal (PSSS) and a Secondary Sidelink Synchronization Signal (SSSS).
  • PSSS Primary Sidelink Synchronization Signal
  • SSSS Secondary Sidelink Synchronization Signal
  • the PSSS may be referred to as a Sidelink Primary Synchronization Signal (S-PSS)
  • S-SSS Sidelink Secondary Synchronization Signal
  • S-SSS Sidelink Secondary Synchronization Signal
  • length-127 M-sequences may be used for S-PSS and length-127 Gold sequences may be used for S-SSS .
  • the terminal may detect an initial signal using S-PSS and may obtain synchronization.
  • the UE may acquire detailed synchronization using S-PSS and S-SSS, and may detect a synchronization signal ID.
  • PSBCH Physical Sidelink Broadcast Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the basic information is information related to SLSS, duplex mode (Duplex Mode, DM), TDD UL/DL (Time Division Duplex Uplink/Downlink) configuration, resource pool related information, type of application related to SLSS, It may be a subframe offset, broadcast information, or the like.
  • the payload size of PSBCH may be 56 bits including 24-bit CRC (Cyclic Redundancy Check).
  • S-PSS, S-SSS, and PSBCH may be included in a block format supporting periodic transmission (eg, SL SS (Synchronization Signal)/PSBCH block, hereinafter S-SSB (Sidelink-Synchronization Signal Block)).
  • the S-SSB may have the same numerology (ie, SCS and CP length) as a Physical Sidelink Control Channel (PSCCH)/Physical Sidelink Shared Channel (PSSCH) in the carrier, and the transmission bandwidth is (pre)set SL Sidelink (BWP) BWP).
  • the bandwidth of the S-SSB may be 11 resource blocks (RBs).
  • the PSBCH may span 11 RBs.
  • the frequency position of the S-SSB may be set (in advance). Therefore, the UE does not need to perform hypothesis detection in frequency to discover the S-SSB in the carrier.
  • FIG. 7 illustrates a terminal performing V2X or SL communication, according to an embodiment of the present disclosure.
  • the embodiment of FIG. 7 may be combined with various embodiments of the present disclosure.
  • terminal in V2X or SL communication may mainly refer to a user's terminal.
  • the base station may also be regarded as a kind of terminal.
  • terminal 1 may be the first apparatus 100
  • terminal 2 may be the second apparatus 200 .
  • UE 1 may select a resource unit corresponding to a specific resource from a resource pool indicating a set of a series of resources. And, UE 1 may transmit an SL signal using the resource unit.
  • terminal 2 which is a receiving terminal, may receive a resource pool configured for terminal 1 to transmit a signal, and may detect a signal of terminal 1 in the resource pool.
  • the base station may inform the terminal 1 of the resource pool.
  • another terminal informs the terminal 1 of the resource pool, or the terminal 1 may use a preset resource pool.
  • the resource pool may be composed of a plurality of resource units, and each UE may select one or a plurality of resource units to use for its own SL signal transmission.
  • the transmission mode may be referred to as a mode or a resource allocation mode.
  • a transmission mode in LTE may be referred to as an LTE transmission mode
  • a transmission mode in NR may be referred to as an NR resource allocation mode.
  • (a) of FIG. 8 shows a terminal operation related to LTE transmission mode 1 or LTE transmission mode 3.
  • (a) of FIG. 8 shows a terminal operation related to NR resource allocation mode 1.
  • LTE transmission mode 1 may be applied to general SL communication
  • LTE transmission mode 3 may be applied to V2X communication.
  • (b) of FIG. 8 shows a terminal operation related to LTE transmission mode 2 or LTE transmission mode 4.
  • (b) of FIG. 8 shows a terminal operation related to NR resource allocation mode 2.
  • the base station may schedule an SL resource to be used by the terminal for SL transmission.
  • the base station may perform resource scheduling to UE 1 through PDCCH (eg, Downlink Control Information (DCI)) or RRC signaling (eg, Configured Grant Type 1 or Configured Grant Type 2), and UE 1 is the V2X or SL communication with UE 2 may be performed according to resource scheduling.
  • PDCCH Downlink Control Information
  • RRC signaling eg, Configured Grant Type 1 or Configured Grant Type 2
  • UE 1 is the V2X or SL communication with UE 2 may be performed according to resource scheduling.
  • UE 1 transmits SCI (Sidelink Control Information) to UE 2 through a Physical Sidelink Control Channel (PSCCH), and then transmits data based on the SCI to UE 2 through a Physical Sidelink Shared Channel (PSSCH).
  • SCI Segmentlink Control Information
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • the terminal may determine the SL transmission resource within the SL resource set by the base station / network or the preset SL resource. have.
  • the configured SL resource or the preset SL resource may be a resource pool.
  • the UE may autonomously select or schedule a resource for SL transmission.
  • the terminal may perform SL communication by selecting a resource by itself within a set resource pool.
  • the terminal may select a resource by itself within the selection window by performing a sensing (sensing) and resource (re)selection procedure.
  • the sensing may be performed in units of subchannels.
  • UE 1 which has selected a resource within the resource pool, transmits the SCI to UE 2 through the PSCCH, and may transmit data based on the SCI to UE 2 through the PSSCH.
  • FIG. 9 illustrates three types of casts according to an embodiment of the present disclosure.
  • the embodiment of FIG. 9 may be combined with various embodiments of the present disclosure.
  • FIG. 9(a) shows broadcast type SL communication
  • FIG. 9(b) shows unicast type SL communication
  • FIG. 9(c) shows groupcast type SL communication.
  • the terminal may perform one-to-one communication with another terminal.
  • the terminal may perform SL communication with one or more terminals in a group to which the terminal belongs.
  • SL groupcast communication may be replaced with SL multicast communication, SL one-to-many communication, or the like.
  • SL congestion control sidelink congestion control
  • the terminal When the terminal determines the SL transmission resource by itself, the terminal also determines the size and frequency of the resource used by the terminal by itself.
  • the terminal determines the size and frequency of the resource used by the terminal by itself.
  • use of a resource size or frequency above a certain level may be restricted due to a constraint from a network or the like.
  • overall performance may be greatly reduced due to mutual interference.
  • the terminal needs to observe the channel condition. If it is determined that excessively many resources are being consumed, it is desirable for the terminal to take an action in the form of reducing its own resource use. In this specification, this may be defined as congestion control (CR). For example, the terminal determines whether the energy measured in the unit time/frequency resource is above a certain level, and determines the amount and frequency of its transmission resource according to the ratio of the unit time/frequency resource in which the energy of the predetermined level or more is observed. can be adjusted In the present specification, a ratio of time/frequency resources in which energy of a certain level or higher is observed may be defined as a channel congestion ratio (CBR). The UE may measure CBR for a channel/frequency. Additionally, the UE may transmit the measured CBR to the network/base station.
  • CBR channel congestion ratio
  • FIG. 10 illustrates a resource unit for CBR measurement according to an embodiment of the present disclosure.
  • the embodiment of FIG. 10 may be combined with various embodiments of the present disclosure.
  • the CBR is a result of the UE measuring a Received Signal Strength Indicator (RSSI) in units of subchannels for a specific period (eg, 100 ms). It may mean the number of channels. Alternatively, the CBR may mean a ratio of subchannels having a value greater than or equal to a preset threshold among subchannels during a specific period. For example, in the embodiment of FIG. 10 , if it is assumed that the shaded subchannels are subchannels having a value greater than or equal to a preset threshold, CBR may mean the ratio of the shaded subchannels during the 100ms period. Additionally, the terminal may report the CBR to the base station.
  • RSSI Received Signal Strength Indicator
  • the terminal may measure a channel occupancy ratio (CR). Specifically, the terminal measures the CBR, and the terminal according to the CBR, the maximum value (CRlimitk) of the channel occupancy ratio (Channel occupancy Ratio k, CRk) that the traffic corresponding to each priority (eg, k) can occupy. ) can be determined. For example, the terminal may derive the maximum value (CRlimitk) of the channel occupancy for the priority of each traffic based on the CBR measurement value predetermined table. For example, in the case of traffic having a relatively high priority, the terminal may derive a maximum value of a relatively large channel occupancy.
  • CR channel occupancy ratio
  • the terminal may perform congestion control by limiting the sum of the channel occupancy rates of traffic having a priority k of traffic lower than i to a predetermined value or less. According to this method, a stronger channel occupancy limit may be applied to traffic having a relatively low priority.
  • the UE performs SL congestion control by using methods such as adjusting the size of transmission power, dropping packets, determining whether to retransmit, and adjusting the size of the transmission RB (Modulation and Coding Scheme (MCS) adjustment).
  • MCS Modulation and Coding Scheme
  • HARQ Hybrid Automatic Repeat Request
  • HARQ feedback and HARQ combining in the physical layer may be supported.
  • the receiving terminal when the receiving terminal operates in resource allocation mode 1 or 2, the receiving terminal may receive a PSSCH from the transmitting terminal, and the receiving terminal may receive Sidelink Feedback Control Information (SFCI) through a Physical Sidelink Feedback Channel (PSFCH).
  • SFCI Sidelink Feedback Control Information
  • PSFCH Physical Sidelink Feedback Channel
  • HARQ feedback for the PSSCH may be transmitted to the transmitting terminal using the format.
  • SL HARQ feedback may be enabled for unicast.
  • the receiving terminal in non-CBG (non-Code Block Group) operation, when the receiving terminal decodes the PSCCH targeting the receiving terminal, and the receiving terminal successfully decodes the transport block related to the PSCCH, the receiving terminal HARQ-ACK may be generated. And, the receiving terminal may transmit the HARQ-ACK to the transmitting terminal.
  • the receiving terminal after the receiving terminal decodes the PSCCH targeting the receiving terminal, if the receiving terminal does not successfully decode the transport block related to the PSCCH, the receiving terminal may generate a HARQ-NACK. And, the receiving terminal may transmit the HARQ-NACK to the transmitting terminal.
  • SL HARQ feedback may be enabled for groupcast.
  • two HARQ feedback options may be supported for groupcast.
  • Groupcast option 1 After the receiving terminal decodes the PSCCH targeting the receiving terminal, if the receiving terminal fails to decode the transport block related to the PSCCH, the receiving terminal transmits the HARQ-NACK through the PSFCH It can be transmitted to the transmitting terminal. On the other hand, if the receiving terminal decodes the PSCCH targeting the receiving terminal, and the receiving terminal successfully decodes the transport block related to the PSCCH, the receiving terminal may not transmit the HARQ-ACK to the transmitting terminal.
  • (2) groupcast option 2 If the receiving terminal fails to decode the transport block related to the PSCCH after the receiving terminal decodes the PSCCH targeting the receiving terminal, the receiving terminal transmits the HARQ-NACK through the PSFCH It can be transmitted to the transmitting terminal. And, when the receiving terminal decodes the PSCCH targeted to the receiving terminal, and the receiving terminal successfully decodes the transport block related to the PSCCH, the receiving terminal may transmit an HARQ-ACK to the transmitting terminal through the PSFCH.
  • all terminals performing groupcast communication may share a PSFCH resource.
  • terminals belonging to the same group may transmit HARQ feedback using the same PSFCH resource.
  • each terminal performing groupcast communication may use different PSFCH resources for HARQ feedback transmission.
  • terminals belonging to the same group may transmit HARQ feedback using different PSFCH resources.
  • the receiving terminal transmits the HARQ feedback to the transmitting terminal based on the TX-RX (Transmission-Reception) distance and/or RSRP (Reference Signal Received Power).
  • TX-RX Transmission-Reception
  • RSRP Reference Signal Received Power
  • the receiving terminal may transmit the HARQ feedback for the PSSCH to the transmitting terminal.
  • the receiving terminal may not transmit the HARQ feedback for the PSSCH to the transmitting terminal.
  • the transmitting terminal may notify the receiving terminal of the location of the transmitting terminal through the SCI related to the PSSCH.
  • the SCI related to the PSSCH may be the second SCI.
  • the receiving terminal may estimate or obtain the TX-RX distance based on the location of the receiving terminal and the location of the transmitting terminal.
  • the receiving terminal can know the communication range requirement used for the PSSCH by decoding the SCI related to the PSSCH.
  • the time between the PSFCH and the PSSCH may be set or preset.
  • this may be indicated to the base station by the terminal within coverage using the PUCCH.
  • the transmitting terminal may transmit an indication to the serving base station of the transmitting terminal in the form of a Scheduling Request (SR)/Buffer Status Report (BSR) rather than the HARQ ACK/NACK format.
  • SR Scheduling Request
  • BSR Buffer Status Report
  • the base station can schedule the SL retransmission resource to the terminal.
  • the time between the PSFCH and the PSSCH may be set or preset.
  • TDM between PSCCH/PSSCH and PSFCH may be allowed for the PSFCH format for SL in the slot.
  • a sequence-based PSFCH format having one symbol may be supported.
  • the one symbol may not be an automatic gain control (AGC) period.
  • the sequence-based PSFCH format may be applied to unicast and groupcast.
  • the PSFCH resource may be periodically set to N slot duration or set in advance.
  • N may be set to one or more values of 1 or more.
  • N may be 1, 2 or 4.
  • HARQ feedback for transmission in a specific resource pool may be transmitted only through the PSFCH on the specific resource pool.
  • slot #(N + A) may include a PSFCH resource.
  • A may be the smallest integer greater than or equal to K.
  • K may be the number of logical slots. In this case, K may be the number of slots in the resource pool. Or, for example, K may be the number of physical slots. In this case, K may be the number of slots inside and outside the resource pool.
  • the receiving terminal when the receiving terminal transmits HARQ feedback on a PSFCH resource in response to one PSSCH transmitted by the transmitting terminal to the receiving terminal, the receiving terminal is based on an implicit mechanism within the configured resource pool. may determine a frequency domain and/or a code domain of For example, the receiving terminal is a slot index related to PSCCH / PSSCH / PSFCH, a subchannel related to PSCCH / PSSCH, and / or an identifier for distinguishing each receiving terminal in a group for HARQ feedback based on groupcast option 2 Based on at least one, a frequency domain and/or a code domain of the PSFCH resource may be determined. And/or, for example, the receiving terminal may determine the frequency domain and/or code domain of the PSFCH resource based on at least one of SL RSRP, SINR, L1 source ID, and/or location information.
  • the UE when the HARQ feedback transmission through the PSFCH of the UE and the HARQ feedback reception through the PSFCH overlap, the UE either transmits the HARQ feedback through the PSFCH or receives the HARQ feedback through the PSFCH based on the priority rule.
  • the priority rule may be based on at least a priority indication of the relevant PSCCH/PSSCH.
  • the UE may select a specific HARQ feedback transmission based on a priority rule.
  • the priority rule may be based on at least a priority indication of the relevant PSCCH/PSSCH.
  • a transmitting terminal may be a terminal transmitting data to a (target) receiving terminal (RX UE).
  • the TX UE may be a terminal performing PSCCH and/or PSSCH transmission.
  • the TX UE may be a terminal that transmits an SL CSI-RS and/or an SL CSI report request indicator to a (target) RX UE.
  • the TX UE is a (target) RX UE to be used for SL (L1) RSRP measurement (predefined) reference signal (eg, PSSCH DM-RS (demodulation reference signal)) and / or SL (L1) RSRP It may be a terminal that transmits a report request indicator.
  • the TX UE is to be used for an SL RLM (radio link monitoring) operation and/or SL RLF (radio link failure) operation of a (target) RX UE, a (control) channel (eg, PSCCH, PSSCH, etc.) and/or It may be a terminal that transmits a reference signal (eg, DM-RS, CSI-RS, etc.) on the (control) channel.
  • SL RLM radio link monitoring
  • SL RLF radio link failure
  • a reference signal eg, DM-RS, CSI-RS, etc.
  • the receiving terminal is the decoding (decoding) success of the data received from the transmitting terminal (TX UE) and / or the detection / decoding success of the PSCCH (related to PSSCH scheduling) transmitted by the TX UE It may be a terminal that transmits SL HARQ feedback to the TX UE depending on whether or not.
  • the RX UE may be a terminal that performs SL CSI transmission to the TX UE based on the SL CSI-RS and/or the SL CSI report request indicator received from the TX UE.
  • the RX UE transmits the SL (L1) RSRP measurement value measured based on the (pre-defined) reference signal and/or the SL (L1) RSRP report request indicator received from the TX UE to the TX UE.
  • the RX UE may be a terminal that transmits data of the RX UE itself to the TX UE.
  • the RX UE is a terminal that performs an SL RLM operation and/or an SL RLF operation based on a (pre-set) (control) channel received from the TX UE and/or a reference signal on the (control) channel.
  • the TX UE may transmit at least one of the following information to the RX UE through SCI.
  • the TX UE may transmit at least one of the following information to the RX UE through a first SCI (first SCI) and/or a second SCI (second SCI).
  • SL CSI transmission indicator (or SL (L1) RSRP (and / or SL (L1) RSRQ and / or SL (L1) RSSI) information transmission indicator)
  • the reference signal information may be information related to a pattern of a DM-RS (time-frequency) mapping resource, RANK information, antenna port index information, information on the number of antenna ports, and the like.
  • PSCCH may be mutually replaced/substituted with at least one of SCI, first SCI (1 st- stage SCI), and/or second SCI (2 nd-stage SCI).
  • the SCI may be replaced/substituted with at least one of the PSCCH, the first SCI, and/or the second SCI.
  • the PSSCH may be substituted/substituted with the second SCI and/or the PSCCH.
  • the first SCI including the first SCI configuration field group 1 may be referred to as SCI st
  • 2 may be referred to a second SCI 2 to SCI nd, including SCI configuration field group.
  • 1 st SCI and 2 nd SCI may be transmitted through different channels.
  • 1 st SCI may be transmitted to the receiving terminal through the PSCCH.
  • 2 nd SCI is either sent to the receiving terminal via the PSCCH (independent), and is piggybacked with the data may be sent on the PSSCH.
  • setting or “definition” may mean (pre)configuration from a base station or a network.
  • configuration or “define” may mean resource pool specific (pre)configuration from a base station or network.
  • the base station or the network may transmit information related to "configuration” or “definition” to the terminal.
  • the base station or the network may transmit information related to "configuration” or “definition” to the terminal through predefined signaling.
  • signaling to be defined in advance may include at least one of RRC signaling, MAC signaling, PHY signaling, and/or SIB.
  • configuration or “definition” may mean designated or configured through signaling previously set between terminals.
  • information related to “configuration” or “definition” may be transmitted/received through preset signaling between terminals.
  • signaling to be defined in advance may be PC5 RRC signaling.
  • RLF may be replaced/substituted with Out-of-Synch (OOS) and/or In-Synch (IS).
  • OOS Out-of-Synch
  • IS In-Synch
  • a resource block may be replaced/substituted with a subcarrier.
  • a packet or traffic may be replaced/replaced with a transport block (TB) or a medium access control protocol data unit (MAC PDU) according to a transmission layer.
  • MAC PDU medium access control protocol data unit
  • a code block group CBG
  • the source ID may be substituted/replaced with the destination ID.
  • the L1 ID may be substituted/replaced with the L2 ID.
  • the L1 ID may be an L1 source ID or an L1 destination ID.
  • the L2 ID may be an L2 source ID or an L2 destination ID.
  • the operation of the TX UE to reserve / select / determine the retransmission resource the TX UE is based on the SL HARQ feedback information received from the RX UE whether actual use is determined (potential) ) may mean an operation of reserving/selecting/determining a retransmission resource.
  • the sub-selection window may be substituted/replaced with a selection window and/or a preset number of resource sets within the selection window.
  • SL MODE 1 may mean a resource allocation method or a communication method in which the base station directly schedules the SL transmission resource for the TX UE through predefined signaling (eg, DCI or RRC message).
  • SL MODE 2 may refer to a resource allocation method or communication method in which the terminal independently selects an SL transmission resource from a base station or a network or from a preset resource pool.
  • a terminal performing SL communication based on SL MODE 1 may be referred to as a MODE 1 UE or MODE 1 TX UE
  • a terminal performing SL communication based on SL MODE 2 is a MODE 2 UE or MODE 2 TX It may be referred to as a UE.
  • a dynamic grant may be substituted/substituted with a configured grant (CG) and/or a semi-persistent scheduling grant (SPS).
  • DG may be interchanged/substituted with a combination of CG and SPS grants.
  • the CG may include at least one of CG type 1 (configured grant type 1) and/or CG type 2 (configured grant type 2).
  • the grant may be provided by RRC signaling and may be stored as a configured grant.
  • the grant may be provided by the PDCCH, and may be stored or deleted as a grant configured based on L1 signaling indicating activation or deactivation of the grant.
  • the base station may allocate a periodic resource to the TX UE through an RRC message.
  • the base station may allocate a periodic resource to the TX UE through an RRC message, and the base station may dynamically activate or deactivate the periodic resource through DCI. have.
  • a channel may be substituted/substituted with a signal.
  • transmission/reception of a channel may include transmission/reception of a signal.
  • transmission/reception of a signal may include transmission/reception of a channel.
  • the cast may be replaced/replaced with at least one of unicast, groupcast, and/or broadcast.
  • the cast type may be substituted/substituted with at least one of unicast, groupcast, and/or broadcast.
  • the cast or cast type may include unicast, groupcast and/or broadcast.
  • the resource may be interchanged / replaced with a slot or symbol.
  • a resource may include a slot and/or a symbol.
  • the priority is LCP (Logical Channel Prioritization), delay (latency), reliability (reliability), minimum required communication range (minimum required communication range), PPPP (Prose Per-Packet Priority), SLRB (Sidelink Radio) Bearer), QoS profile (profile), QoS parameters, and / or at least one of the requirements (requirement) and may be interchanged / replaced with each other.
  • LCP Logical Channel Prioritization
  • delay latency
  • reliability reliability
  • minimum required communication range minimum required communication range
  • PPPP Prose Per-Packet Priority
  • SLRB idelink Radio
  • QoS profile profile
  • QoS parameters and / or at least one of the requirements (requirement) and may be interchanged / replaced with each other.
  • a (physical) channel used when the RX UE transmits at least one of the following information to the TX UE may be referred to as a PSFCH.
  • the Uu channel may include a UL channel and/or a DL channel.
  • the UL channel may include PUSCH, PUCCH, Sounding Reference Signal (SRS), and the like.
  • the DL channel may include PDCCH, PDSCH, PSS/SSS, and the like.
  • the SL channel may include PSCCH, PSSCH, PSFCH, PSBCH, PSSS/SSSS, and the like.
  • sidelink information may include at least one of a sidelink message, a sidelink packet, a sidelink service, sidelink data, sidelink control information, and/or a sidelink transport block (TB).
  • the sidelink information may be transmitted through PSSCH and/or PSCCH.
  • a high priority may mean a small priority value
  • a low priority may mean a large priority value.
  • Table 5 shows an example of priorities.
  • service or logical channel priority value Service A or logical channel A
  • service A or logical channel A related to the smallest priority value may have the highest priority.
  • service C or logical channel C associated with the highest priority value may have the lowest priority.
  • rule #A and rule #B may be implemented independently or may be implemented in combination with each other.
  • a time gap may be required to ensure the minimum required processing time.
  • the time gap is fixed to one value, eventually This value should be defined as a value to support the SL service of the tightest QoS requirements (eg, latency). Due to this, a problem in that the terminal implementation becomes excessive (regardless of the type of SL service that the terminal is actually interested in) may occur.
  • FIG. 11 illustrates a procedure in which a UE reports SL HARQ feedback to a base station according to an embodiment of the present disclosure.
  • the embodiment of FIG. 11 may be combined with various embodiments of the present disclosure.
  • the TX UE may receive information related to SL resources and/or information related to UL resources from the base station.
  • the SL resource may include a PSCCH resource and/or a PSSCH resource.
  • the UL resource may include a PUCCH resource and/or a PUSCH resource.
  • the base station may transmit DCI including information related to SL resources and information related to UL resources to the TX UE.
  • the base station may transmit an RRC message (eg, SL-ConfiguredGrantConfig) including information related to SL resources and information related to UL resources to the TX UE.
  • the base station may transmit an RRC message (eg, SL-ConfiguredGrantConfig) including information related to the SL resource to the TX UE, and the base station then activates or deactivates the SL resource through DCI. can do.
  • the DCI may include information related to UL resources.
  • the TX UE may transmit a PSCCH to the RX UE.
  • the TX UE may transmit the first SCI to the RX UE through the PSCCH.
  • the TX UE may transmit the PSSCH related to the PSCCH to the RX UE.
  • the TX UE may transmit the second SCI and/or data (eg, MAC PDU, TB) to the RX UE through the PSSCH related to the PSCCH.
  • the second SCI and/or data eg, MAC PDU, TB
  • the TX UE and/or the RX UE may determine a PSFCH resource. For example, the TX UE and/or the RX UE may determine the PSFCH resource related to the PSSCH resource based on the slot index of the PSSCH resource and the subchannel index of the PSSCH resource. For example, the TX UE and/or the RX UE may determine the PSFCH resource related to the PSSCH resource based on the slot index of the PSSCH resource, the subchannel index of the PSSCH resource, and the source ID of the TX UE.
  • the TX UE and/or the RX UE may determine the PSFCH resource related to the PSSCH resource based on the slot index of the PSSCH resource, the subchannel index of the PSSCH resource, the source ID of the TX UE, and the member ID of the RX UE. .
  • the TX UE may monitor the PSFCH from the RX UE on the PSFCH resource. For example, the TX UE may monitor the SL HARQ feedback from the RX UE based on the PSFCH resource.
  • the TX UE may transmit a PUCCH and/or a PUSCH to the base station.
  • the TX UE may transmit SL HARQ feedback to the base station based on the PUCCH resource and/or the PUSCH resource.
  • a PUCCH resource and/or a PUSCH resource may be referred to as a UL resource.
  • the TX UE may report the NACK to the base station based on the UL resource. In this case, the base station may allocate additional retransmission resources to the TX UE.
  • the TX UE may report the ACK to the base station based on the UL resource.
  • the base station may not allocate additional retransmission resources to the TX UE.
  • the TX UE may report a NACK to the base station based on the UL resource. In this case, the base station may allocate additional retransmission resources to the TX UE.
  • the minimum time gap may be referred to as MIN_TGAP or T prep.
  • MIN_TGAP a minimum time gap between the PSFCH resource and the UL resource
  • the MIN_TGAP value may be set/defined for the terminal.
  • the MIN_TGAP value may be a T prep value.
  • the MIN_TGAP value may be the minimum time interval/offset between the time when the terminal finishes receiving the PSFCH and the start time of the PUCCH.
  • the MIN_TGAP value may be a minimum time interval/offset between a point in time when the UE finishes receiving a PSFCH and a start time of a PUSCH at which a PUCCH related to the PSFCH is piggybacked.
  • the MIN_TGAP value may be the minimum time interval/offset between the time when the UE finishes receiving the PSFCH and the start time of the PUCCH that is piggybacked on the PUSCH.
  • the start time of the PUCCH piggybacked to the PUSCH may be the start time of the most preceding PUCCH in the time domain piggybacked to the PUSCH.
  • the PSFCH may be a PSFCH received by the UE on the last PSFCH slot associated with the PUCCH.
  • the start time of the PUCCH may be a time when the terminal starts transmission of the PUCCH.
  • the start time of the PUSCH may be a time at which the UE starts transmitting the PUSCH.
  • the PUCCH may include SL HARQ feedback information.
  • the PUCCH may include SL HARQ feedback information related to the PSFCH.
  • FIG. 12 illustrates a mapping method between a PSSCH resource and a PSFCH resource and a mapping between a PSFCH resource and a UL resource according to an embodiment of the present disclosure.
  • the embodiment of FIG. 12 may be combined with various embodiments of the present disclosure.
  • the minimum time gap may be a time interval or time offset between the last PSFCH resource and the UL resource among a plurality of PSFCH resources related to the UL resource.
  • Table 6 shows how the terminal acquires/determines the minimum time gap (eg, T prep ).
  • the MIN_TGAP value is at least one of a time (eg, minimum time) required for PSFCH detection/information derivation (eg, minimum time) and/or time required for PUCCH information configuration/processing (eg, minimum time) may include
  • a time eg, minimum time
  • time required for PUCCH information configuration/processing eg, minimum time
  • the value of X in Table 6 may be set.
  • the value of X may be a value in milliseconds.
  • the value of X may be a value in microseconds.
  • the X value may be a value of a symbol length unit based on subcarrier spacing related to SL.
  • the value of X may be a value of a symbol length unit based on subcarrier spacing related to UL.
  • the value of X may be a value of a symbol length unit based on the smallest subcarrier spacing among UL-related subcarrier spacing and SL-related subcarrier spacing.
  • the value of X may be changed according to the number of PSFCHs that the UE needs to receive/process (at the same time) in order to configure/transmit PUCCH information.
  • the value of X may be changed according to the number of PSFCHs to be received/processed (simultaneously) on the last PSFCH slot associated with the PUCCH.
  • the number of PSFCHs may be the maximum number of PSFCHs, the minimum number of PSFCHs, or the average number of PSFCHs.
  • the value of X may be changed according to the number of PSFCHs to be received/processed (at the same time) in order for the UE to piggyback the PUCCH (related to the PSFCH) on the PUSCH and process/transmit it.
  • the X value is changed can be
  • the number of PSFCHs may be the maximum number of PSFCHs, the minimum number of PSFCHs, or the average number of PSFCHs.
  • parameters eg, MIN_TGAP, X, (reflecting/including X (described in this disclosure) N) related to (some) proposed methods/rules of the present disclosure and/or whether the parameters are applied or not depends on the service priority It may be set/limited for the terminal differently or independently for each priority or service priority.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal in a service type-specific manner or differently or independently for each service type.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (service) QoS requirement specifically or for each (service) QoS requirement.
  • QoS requirements may include latency and/or reliability.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (resource pool) congestion level specifically or for each (resource pool) congestion level.
  • the congestion level may include CBR.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE in a resource pool-specific manner or differently or independently for each resource pool.
  • the parameter and/or whether the parameter is applied or not may be set/limited for the terminal in a specific cast type or differently or independently for each cast type.
  • the cast type may include unicast, groupcast, or broadcast.
  • the parameter and/or whether the parameter is applied or not may be set/limited for the UE in a specific HARQ feedback scheme or differently or independently for each HARQ feedback scheme.
  • the HARQ feedback scheme may include an ACK/NACK feedback scheme or a NACK ONLY feedback scheme.
  • the parameter and/or whether the parameter is applied or not may be set/limited for the terminal in a specific SL operation mode or differently or independently for each SL operation mode.
  • the SL mode of operation may include mode 1 or mode 2.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE in a specific MAC PDU or differently or independently for each MAC PDU.
  • the MAC PDU may include a HARQ FEEDBACK ENABLED MAC PDU or a HARQ FEEDBACK DISABLED MAC PDU.
  • the HARQ FEEDBACK ENABLED MAC PDU may be a MAC PDU composed of a packet related to a logical channel for which HARQ feedback is required.
  • the HARQ FEEDBACK DISABLED MAC PDU may be a packet related to a logical channel for which HARQ feedback is not required. It may be a configured MAC PDU.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE in a TB-specific manner or differently or independently for each TB.
  • the TB may include a TB for which HARQ feedback is required or a TB for which HARQ feedback is not required.
  • the parameter and/or whether the parameter is applied (operated by the terminal (or operable)) (maximum or minimum or average) the number of SL sessions specifically or (operable (or operable) by the terminal) ) (maximum or minimum or average) may be set/limited for the terminal differently or independently for each number of SL sessions.
  • whether the parameter and/or the parameter is applied may be determined by the simultaneous reception/processing (or transmission) possible maximum (or minimum or average) number of PSFCHs (eg, UE CAPABILITY) of the terminal or simultaneous reception/processing of the terminal.
  • the maximum (or minimum or average) PSFCH number (eg, UE CAPABILITY) that can be processed (or transmitted) may be set/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each PSFCH resource period-specific (resource pool-related) or (resource pool-related) PSFCH resource period. .
  • whether the parameter and/or the parameter is applied is the number of bits/information amount of the SL HARQ feedback transmitted through (specific) PUCCH or the number of bits/ It may be set/limited for the terminal differently or independently for each amount of information.
  • the number of bits/information amount of SL HARQ feedback may include the maximum number of bits/information amount of SL HARQ feedback, minimum number of bits/information amount of SL HARQ feedback, or average number of bits/information amount of SL HARQ feedback.
  • the parameter and/or whether the parameter is applied is determined by a (specific) PUCCH-linked (last) PSFCH slot (relevant (feedback bundling) PSSCH slot) (maximum or minimum or average) number of specific or (specific) ) PUCCH-linked (last) PSFCH slots (related (feedback bundling) PSSCH slots) (maximum or minimum or average) may be set/limited differently or independently for each terminal.
  • the parameter and/or whether the parameter is applied is determined by the number of (maximum or minimum or average) PSFCHs required for (simultaneous) reception (on the last PSFCH slot associated with PUCCH) for PUCCH information configuration.
  • PUCCH information configuration on the last PSFCH slot interlocked with PUCCH
  • (simultaneous) reception is required (maximum or minimum or average) for each number of PSFCHs that are required to be configured/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied or not depends on the value of the COUNTER SIDELINK ASSIGNMENT INDEX field (on DG DCI) specifically or the value of the COUNTER SIDELINK ASSIGNMENT INDEX field (on DG DCI) differently or independently for the terminal It can be set/limited.
  • SL slot related (maximum or minimum or average) symbol number / position-specific or (resource In the pool) (on the last PSFCH slot interlocked with the PUCCH) SL slot-related (maximum or minimum or average) symbol number/position may be set/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied is determined (in the resource pool) (on the last PSFCH slot associated with the PUCCH) PSSCH-related (maximum or minimum or average) symbol number/position-specific or (resource pool) My) (on the last PSFCH slot interlocked with PUCCH) PSSCH-related (maximum or minimum or average) symbol number/position may be set/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied is determined by the number/position of PSFCH symbols in the SL slot (on the last PSFCH slot associated with PUCCH) or in the SL slot (on the last PSFCH slot associated with PUCCH) It may be configured/limited for the UE differently or independently for each PSFCH symbol number/position.
  • the parameter and/or whether the parameter is applied is determined by (resource pool related) (preset) PSSCH DMRS time domain pattern specifically or (resource pool related) (preset) PSSCH DMRS time domain pattern It may be set/limited for the terminal differently or independently.
  • whether the parameter and / or the application of the parameter is (selectable) PSSCH (time domain) DMRS (pattern) the maximum (or minimum or average) number of symbols Specifically or (selectable) PSSCH (time domain) ) DMRS (pattern) may be set/limited for the terminal differently or independently for each maximum (or minimum or average) number of symbols.
  • the position/index of the rearmost DMRS symbol in the SL slot may be set/limited differently or independently for the UE.
  • whether the parameter and/or the parameter is applied is determined whether (in the resource pool) SL CSI-RS (and/or PT-RS) is configured specifically or (in the resource pool) the SL CSI-RS (and/or Or PT-RS) may be configured/limited for the UE differently or independently for each configuration.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each synchronization error between Uu communication and SL communication specifically or for each synchronization error between Uu communication and SL communication.
  • the synchronization error between Uu communication and SL communication may include a subframe boundary difference, a slot boundary difference, a symbol boundary difference, or a (start point) difference between SFN 0 and DFN 0. have.
  • whether the parameter and/or whether the parameter is applied is determined whether the synchronization error between the Uu communication and the SL communication exceeds a preset (allowable) threshold or specifically or whether the synchronization error between the Uu communication and the SL communication is preset (Allow) It may be set/limited for the terminal differently or independently according to whether the threshold is exceeded.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE differently or independently for each PUCCH-related HARQ codebook type or for each PUCCH-related HARQ codebook type.
  • the PUCCH-related HARQ codebook type may include a SEMI-STATIC codebook or a DYNAMIC codebook.
  • the parameter and/or whether the parameter is applied is specific to the number of PUSCH symbols to which PUCCH is piggybacked (PSFCH-related) or (PSFCH-related) Differently or independently according to the number of PUSCH symbols to which PUCCH is piggybacked can be set/limited for the terminal.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each number/position-specifically the number/position of DMRS symbols on the PUSCH or the number/position of the DMRS symbols on the PUSCH. .
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal in a specific manner or differently or independently for each grant.
  • the grant may include mode 1 DG or CG.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (PSFCH) SL neuronology or (PSFCH) SL neuronology.
  • the numerology may include subcarrier spacing, CP length, or CP type.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (PUCCH) UL neuronology or (PUCCH) UL neuronology.
  • whether the parameter and/or the parameter is applied is a minimum value between UL neuronology and SL neuronology, or a minimum value between UL neuronology and SL neuronology.
  • a minimum value between UL neuronology and SL neuronology is a minimum value between UL neuronology and SL neuronology.
  • Differently or independently for each terminal. can
  • whether the parameter and/or the parameter is applied may be set/limited for the terminal differently or independently for each combination specific between UL neuronology and SL neurology or for each combination between UL neurology and SL neurology.
  • the wording “X” may be interpreted (extended) by being replaced with “N” or “T prep ”.
  • the base station / network to the terminal the X value (and / or (reflecting / including the X value (described in the present disclosure)) N value and / or (T prep value) below (part of) It can be transmitted/set/limited for each parameter and/or specifically differently or independently.
  • the base station / network via RRC, SIB, PRECONFIGURATION, and / or (DG and / or CG ACTIVATION) DCI (a predefined field on the), X value (and / or (as described in this disclosure) It is possible to transmit the N value (reflecting/including the X value) and/or the T prep value (in Table 6) to the UE.
  • the X value (and/or the N value (reflecting/including the X value (described in the present disclosure)) and/or the T prep value (in Table 6) may be fixed for each of the following (some) parameters.
  • the parameter may include at least one of the parameters listed below.
  • congestion pool congestion level (eg CBR)
  • the maximum (or minimum or average) number of PSFCHs that the terminal can simultaneously receive / process (eg, UE CAPABILITY)
  • the maximum (or minimum or average) number of PSFCHs that the terminal can transmit simultaneously (eg, UE CAPABILITY)
  • PSSCH DMRS time domain pattern (time domain pattern)
  • PSSCH time domain
  • DMRS pattern
  • the value of X when the priority of a service/packet is relatively low (than a preset threshold level), the value of X may be set (relatively) large for the terminal. For example, when the reliability requirement of a service/packet is relatively low (than a preset threshold level), the value of X may be set (relatively) large for the terminal. For example, when the service/packet related delay requirement is relatively long (than a preset threshold value), the value of X may be set (relatively) large for the terminal.
  • the value of X may be set to be large (relatively) for the UE.
  • the value of X may be set to be large (relatively) for the terminal.
  • the resource pool congestion level is lower (than a preset threshold)
  • the value of X may be set to be (relatively) large for the terminal.
  • the value of X may be set to be large (relatively) for the UE.
  • the value of X when the priority of a service/packet is relatively low (than a preset threshold level), the value of X may be set to a small (relatively) small value for the terminal. For example, when the reliability requirement of a service/packet is relatively low (than a preset threshold level), the value of X may be set to a small (relatively) small value for the terminal. For example, when a service/packet related delay requirement is relatively long (than a preset threshold value), the value of X may be set to a small (relatively) small value for the terminal.
  • the value of X may be set to a small (relatively) small value for the UE.
  • the value of X may be set to be small (relatively) for the terminal.
  • the resource pool congestion level is lower (than a preset threshold)
  • the X value may be set to a (relatively) small (relatively) small value for the terminal.
  • the value of X may be set to a small (relatively) small value for the terminal.
  • the terminal may set/determine the value of X (relatively) large. For example, when the reliability requirement of the service/packet is relatively low (than a preset threshold level), the terminal may set/determine the X value (relatively) large. For example, when the service/packet related delay requirement is relatively long (than a preset threshold value), the UE may set/determine the X value (relatively) large. For example, when the (SL) ACK/NACK feedback scheme is applied to the UE (compared to the (SL) NACK ONLY feedback scheme), the UE may set/determine the X value (relatively) largely.
  • the UE may set/determine the value of X (relatively) large. For example, when the resource pool congestion level is lower (than a preset threshold), the UE may set/determine the X value (relatively) large. For example, when the UE transmits a HARQ FEEDBACK DISABLED MAC PDU/TB (compared to HARQ FEEDBACK ENABLED MAC PDU/TB), the UE may set/determine a (relatively) large X value.
  • the terminal may set/determine the value of X to be (relatively) small. For example, when the reliability requirement of a service/packet is relatively low (than a preset threshold level), the terminal may set/determine the value of X to be (relatively) small. For example, when the service/packet related delay requirement is relatively long (than a preset threshold value), the terminal may set/determine the value of X to be (relatively) small.
  • the terminal may set/determine the X value (relatively) small.
  • the UE may set/determine the value of X to be (relatively) small.
  • the resource pool congestion level is lower (than a preset threshold)
  • the UE may set/determine the value of X to be (relatively) small.
  • the UE when the UE transmits a HARQ FEEDBACK DISABLED MAC PDU/TB (compared to HARQ FEEDBACK ENABLED MAC PDU/TB), the UE may set/determine a (relatively) small X value.
  • the X value may be set differently or independently for each terminal for each COUNTER SIDELINK ASSIGNMENT INDEX (hereinafter, CSAI) field value on the DG DCI.
  • CSAI field value may indicate how many (new) TB transmissions the base station has scheduled (with DG DCI) on the (last) PSFCH slot related (feedback bundling) PSSCH slot associated with the PUCCH.
  • the value of X when the value of the CSAI field is relatively large, the value of X may be set to be (relatively) large.
  • the value of X when the base station schedules (by DG DCI) a relatively large number of (new) TB transmissions on the (last) PSFCH slot-related (feedback bundling) PSSCH slot associated with PUCCH, the value of X is (relatively) It can be largely set for the terminal.
  • a situation in which the CSAI field value is relatively large may include a situation in which the number of bits/information amount of the SL HARQ feedback transmitted through the PUCCH increases.
  • a situation in which the value of the CSAI field is relatively large may include a situation in which the number of PSFCHs that the UE needs to receive (at the same time) increases (on the last PSFCH slot associated with the PUCCH) for configuring PUCCH information.
  • the value of X may be set to be (relatively) small.
  • the value of X is (relatively) It can be set small for the terminal.
  • the UE may set/determine the value of X to be (relatively) large. For example, when the base station schedules (by DG DCI) a relatively large number of (new) TB transmissions on the (last) PSFCH slot-related (feedback bundling) PSSCH slot associated with PUCCH, the terminal is (relatively) large X value can be set/determined.
  • the UE may set/determine the value of X to be (relatively) small.
  • the base station schedules (by DG DCI) a relatively large number of (new) TB transmissions on the (last) PSFCH slot-related (feedback bundling) PSSCH slot associated with the PUCCH
  • the terminal is (relatively) small X value can be set/determined.
  • the value of X may be set (relatively) large for the terminal.
  • the X value is (relatively) large to be set for the terminal.
  • the X value is (relatively) large set for the terminal can be
  • the SEMI-STATIC HARQ codebook is set (compared to the DYNAMIC HARQ codebook)
  • the X value may be set to be large (relatively) for the terminal.
  • the value of X may be set to be (relatively) large for the terminal.
  • the value of X may be set to be large (relatively) for the terminal.
  • the value of X may be set to be (relatively) small for the terminal.
  • the X value is (relatively) small to be set for the terminal.
  • the X value is (relatively) small set for the terminal can be
  • the SEMI-STATIC HARQ codebook is configured (compared to the DYNAMIC HARQ codebook)
  • the value of X may be (relatively) small and set for the terminal.
  • the value of X may be set to be (relatively) small for the terminal.
  • the value of X may be set to be small (relatively) for the terminal.
  • the UE may set/determine the X value (relatively) largely.
  • the terminal when the (last) PSFCH slot (related (feedback bundling) PSSCH slot) (maximum) number associated with (one) PUCCH is relatively increased, the terminal (relatively) largely sets/determines the X value.
  • the terminal sets a large X value / can decide For example, when the SEMI-STATIC HARQ codebook is set (compared to the DYNAMIC HARQ codebook), the UE may set/determine the X value (relatively) largely. For example, when the PSFCH resource period (in the resource pool) is set to be relatively long, the UE may set/determine the value of X to be (relatively) large. For example, in the case of CG (compared to MODE 1 DG), the UE may set/determine the X value (relatively) large.
  • the UE may set/determine the value of X to be (relatively) small.
  • the terminal sets / determines the X value (relatively) small can For example, when the number of (maximum) PSFCHs required for (simultaneous) reception (on the last PSFCH slot interlocked with PUCCH) for PUCCH information configuration is relatively increased, the UE sets a (relatively) small X value / can decide For example, when the SEMI-STATIC HARQ codebook is configured (compared to the DYNAMIC HARQ codebook), the UE may set/determine the X value (relatively) small.
  • the UE may set/determine the value of X to be (relatively) small. For example, in the case of CG (compared to MODE 1 DG), the UE may set/determine a small (relatively) X value.
  • the value of X may be set to be (relatively) large for the terminal.
  • the X value may be set (relatively) large for the terminal.
  • the value of X may be set for the terminal to be (relatively) small.
  • the X value may be set to a small (relatively) small value for the terminal.
  • the terminal may set/determine a (relatively) large X value. For example, when the synchronization error between the Uu communication and the SL communication is relatively large (than a preset (allowed) threshold value), the terminal may set/determine the X value (relatively) large.
  • the terminal may set/determine the value of X to be (relatively) small. For example, when the synchronization error between the Uu communication and the SL communication is relatively large (than a preset (allowed) threshold value), the terminal may set/determine the X value to be (relatively) small.
  • the terminal may be configured to report information related to a specific value preferred by the terminal to the base station through preset (UL) signaling (eg, PUCCH, PUSCH).
  • the terminal may transmit information related to a specific value preferred by the terminal to the base station through preset (UL) signaling (eg, PUCCH, PUSCH).
  • the terminal may be configured to report information related to a specific value preferred by the terminal to the base station through a preset information format (eg, MAC CE, UCI).
  • the terminal may transmit information related to a specific value preferred by the terminal to the base station through a preset information format (eg, MAC CE, UCI).
  • the information related to the specific value includes at least one of an X value, an N value (reflecting/including an X value (described in the present disclosure)), and/or a T prep value (in Table 6 above). may include
  • a specific value reported by the UE to the base station may be configured/specified for each (PSFCH-related) SL numerology (eg, subcarrier spacing, CP length, CP type).
  • SL numerology eg, subcarrier spacing, CP length, CP type
  • a specific value reported by the UE to the base station may be configured/designated for each UL neurology (PUCCH-related).
  • a specific value reported by the UE to the base station may be configured/designated for each minimum value between SL neurology and UL neurology.
  • a specific value reported by the UE to the base station may be configured/designated for each combination of SL neuronology and UL neurology.
  • a specific value reported by the terminal to the base station may be configured/specified for each parameter described in [Rule #A].
  • a specific value reported by the UE to the base station may be configured/specified for each combination of parameters described in [Rule #A].
  • the MIN_TGAP (eg, T prep ) related to the PUCCH transmission of the terminal may not be guaranteed.
  • the difference between the synchronization/timing related to the base station (communication) and the synchronization/timing related to the SL (communication) is greater than a preset threshold, the MIN_TGAP (eg, T prep ) related to the PUCCH transmission of the terminal is guaranteed may not be In this case, the following (some) rules may apply.
  • the UE may be configured not to perform PSFCH reception linked to SL HARQ information transmitted through PUCCH.
  • the UE may not perform PSFCH reception linked to SL HARQ information transmitted through PUCCH.
  • the UE may be configured not to perform PUCCH transmission related to PSFCH.
  • the UE may not perform PUCCH transmission related to the PSFCH.
  • the UE may transmit the PUCCH (maximum) number of times (hereinafter, ACT_PFNUM) may be configured to perform only the PSFCH reception operation, or the terminal may be configured to perform only a preset number of PSFCH reception operations (for such a case), or the terminal may perform PUCCH transmission It may be set to generate/process only the (maximum) number of SL HARQ bits (hereinafter, ACT_HQBIT).
  • ACT_TGAP may be a value smaller than MIN_TGAP.
  • ACT_TGAP may be less than or equal to MIN_TGAP.
  • ACT_PFNUM may be a value smaller than the UE CAPABILITY value (reported to the base station).
  • ACT_PFNUM may be less than or equal to the UE CAPABILITY value (reported to the base station).
  • the UE when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ-bit related PSFCHs, the UE may be configured to preferentially select a PSFCH related to a service of relatively high priority. For example, when the terminal selects ACT_PFNUM PSFCH and/or ACT_HQBIT HARQ bit related PSFCH, the terminal selects a service related PSFCH with relatively tight QoS requirements (eg, (high) reliability, (low) delay) It may be set to preferentially select.
  • QoS requirements eg, (high) reliability, (low) delay
  • the UE when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ bit related PSFCHs, the UE may be configured to preferentially select a PSFCH including NACK information. For example, when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ-bit related PSFCHs, the UE may be configured to preferentially select a PSFCH including ACK information. For example, when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ bit related PSFCHs, the UE may be configured to preferentially select a PSFCH related to HARQ information of a NACK ONLY feedback scheme.
  • the UE when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ bit related PSFCHs, the UE may be configured to preferentially select a PSFCH related to HARQ information of an ACK/NACK feedback scheme. For example, when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ bit related PSFCHs, the UE may be configured to preferentially select unicast related PSFCHs. For example, when the UE selects ACT_PFNUM PSFCHs and/or ACT_HQBIT HARQ bit related PSFCHs, the UE may be configured to preferentially select a groupcast related PSFCH.
  • the UE may be configured to transmit only the number of TBs of ACT_TBNUM.
  • the UE may be configured to transmit only the number of TBs of ACT_TBNUM on a PSSCH slot associated with a PSFCH slot related to PUCCH.
  • the number of ACT_TBNUM may be the number in which ACT_TGAP-based PUCCH transmission can be performed.
  • the number of ACT_TBNUM may be a number that can satisfy ACT_PFNUM.
  • the number of ACT_TBNUM may be a number that can satisfy ACT_HQBIT.
  • the UE when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to services of relatively high priority. For example, when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select a TB related to a service having relatively tight QoS requirements (eg, (high) reliability, (low) delay). For example, when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to NACK information. For example, when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to ACK information.
  • QoS requirements eg, (high) reliability, (low) delay
  • the UE when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to HARQ information of the NACK ONLY feedback method. For example, when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to HARQ information of the ACK/NACK feedback method. For example, when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to unicast. For example, when the UE selects ACT_TBNUM TBs, the UE may be configured to preferentially select TBs related to groupcast.
  • parameters eg, ACT_TGAP, ACT_PFNUM, ACT_HQBIT, ACT_TBNUM, etc.
  • application of the parameters related to the (some) proposed method/rule of the present disclosure are service priority-specific or different for each service priority It can be set/limited for the terminal either independently or independently.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal in a service type-specific manner or differently or independently for each service type.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (service) QoS requirement specifically or for each (service) QoS requirement.
  • QoS requirements may include latency and/or reliability.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (resource pool) congestion level specifically or for each (resource pool) congestion level.
  • the congestion level may include CBR.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE in a resource pool-specific manner or differently or independently for each resource pool.
  • the parameter and/or whether the parameter is applied or not may be set/limited for the terminal in a specific cast type or differently or independently for each cast type.
  • the cast type may include unicast, groupcast, or broadcast.
  • the parameter and/or whether the parameter is applied or not may be set/limited for the UE in a specific HARQ feedback scheme or differently or independently for each HARQ feedback scheme.
  • the HARQ feedback scheme may include an ACK/NACK feedback scheme or a NACK ONLY feedback scheme.
  • the parameter and/or whether the parameter is applied or not may be set/limited for the terminal in a specific SL operation mode or differently or independently for each SL operation mode.
  • the SL mode of operation may include mode 1 or mode 2.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE in a specific MAC PDU or differently or independently for each MAC PDU.
  • the MAC PDU may include a HARQ FEEDBACK ENABLED MAC PDU or a HARQ FEEDBACK DISABLED MAC PDU.
  • the HARQ FEEDBACK ENABLED MAC PDU may be a MAC PDU composed of a packet related to a logical channel for which HARQ feedback is required.
  • the HARQ FEEDBACK DISABLED MAC PDU may be a packet related to a logical channel for which HARQ feedback is not required. It may be a configured MAC PDU.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE in a TB-specific manner or differently or independently for each TB.
  • the TB may include a TB for which HARQ feedback is required or a TB for which HARQ feedback is not required.
  • the parameter and/or whether the parameter is applied (operated by the terminal (or operable)) (maximum or minimum or average) the number of SL sessions specifically or (operable (or operable) by the terminal) ) (maximum or minimum or average) may be set/limited for the terminal differently or independently for each number of SL sessions.
  • whether the parameter and/or the parameter is applied may be determined by the simultaneous reception/processing (or transmission) possible maximum (or minimum or average) number of PSFCHs (eg, UE CAPABILITY) of the terminal or simultaneous reception/processing of the terminal.
  • the maximum (or minimum or average) PSFCH number (eg, UE CAPABILITY) that can be processed (or transmitted) may be set/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each PSFCH resource period-specific (resource pool-related) or (resource pool-related) PSFCH resource period. .
  • whether the parameter and/or the parameter is applied is the number of bits/information amount of the SL HARQ feedback transmitted through (specific) PUCCH or the number of bits/ It may be set/limited for the terminal differently or independently for each amount of information.
  • the number of bits/information amount of SL HARQ feedback may include the maximum number of bits/information amount of SL HARQ feedback, minimum number of bits/information amount of SL HARQ feedback, or average number of bits/information amount of SL HARQ feedback.
  • the parameter and/or whether the parameter is applied is determined by a (specific) PUCCH-linked (last) PSFCH slot (relevant (feedback bundling) PSSCH slot) (maximum or minimum or average) number of specific or (specific) ) PUCCH-linked (last) PSFCH slots (related (feedback bundling) PSSCH slots) (maximum or minimum or average) may be set/limited differently or independently for each terminal.
  • the parameter and/or whether the parameter is applied is determined by the number of (maximum or minimum or average) PSFCHs required for (simultaneous) reception (on the last PSFCH slot associated with PUCCH) for PUCCH information configuration.
  • the parameter and/or whether the parameter is applied or not depends on the value of the COUNTER SIDELINK ASSIGNMENT INDEX field (on DG DCI) specifically or the value of the COUNTER SIDELINK ASSIGNMENT INDEX field (on DG DCI) differently or independently for the terminal It can be set/limited.
  • SL slot related (maximum or minimum or average) symbol number / position-specific or (resource In the pool) (on the last PSFCH slot interlocked with the PUCCH) SL slot-related (maximum or minimum or average) symbol number/position may be set/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied is determined (in the resource pool) (on the last PSFCH slot associated with the PUCCH) PSSCH-related (maximum or minimum or average) symbol number/position-specific or (resource pool) My) (on the last PSFCH slot interlocked with PUCCH) PSSCH-related (maximum or minimum or average) symbol number/position may be set/limited differently or independently for the UE.
  • the parameter and/or whether the parameter is applied is determined by the number/position of PSFCH symbols in the SL slot (on the last PSFCH slot associated with PUCCH) or in the SL slot (on the last PSFCH slot associated with PUCCH) It may be configured/limited for the UE differently or independently for each PSFCH symbol number/position.
  • the parameter and/or whether the parameter is applied is determined by (resource pool related) (preset) PSSCH DMRS time domain pattern specifically or (resource pool related) (preset) PSSCH DMRS time domain pattern It may be set/limited for the terminal differently or independently.
  • whether the parameter and / or the application of the parameter is (selectable) PSSCH (time domain) DMRS (pattern) the maximum (or minimum or average) number of symbols Specifically or (selectable) PSSCH (time domain) ) DMRS (pattern) may be set/limited for the terminal differently or independently for each maximum (or minimum or average) number of symbols.
  • the position/index of the rearmost DMRS symbol in the SL slot may be set/limited differently or independently for the UE.
  • whether the parameter and/or the parameter is applied is determined whether (in the resource pool) SL CSI-RS (and/or PT-RS) is configured specifically or (in the resource pool) the SL CSI-RS (and/or Or PT-RS) may be configured/limited for the UE differently or independently for each configuration.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each synchronization error between Uu communication and SL communication specifically or for each synchronization error between Uu communication and SL communication.
  • the synchronization error between Uu communication and SL communication may include a subframe boundary difference, a slot boundary difference, a symbol boundary difference, or a (start point) difference between SFN 0 and DFN 0. have.
  • whether the parameter and/or whether the parameter is applied is determined whether the synchronization error between the Uu communication and the SL communication exceeds a preset (allowable) threshold or specifically or whether the synchronization error between the Uu communication and the SL communication is preset (Allow) It may be set/limited for the terminal differently or independently according to whether the threshold is exceeded.
  • the parameter and/or whether the parameter is applied may be set/limited for the UE differently or independently for each PUCCH-related HARQ codebook type or for each PUCCH-related HARQ codebook type.
  • the PUCCH-related HARQ codebook type may include a SEMI-STATIC codebook or a DYNAMIC codebook.
  • the parameter and/or whether the parameter is applied is specific to the number of PUSCH symbols to which PUCCH is piggybacked (PSFCH-related) or (PSFCH-related) Differently or independently according to the number of PUSCH symbols to which PUCCH is piggybacked can be set/limited for the terminal.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each number/position-specifically the number/position of DMRS symbols on the PUSCH or the number/position of the DMRS symbols on the PUSCH.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal in a specific manner or differently or independently for each grant.
  • the grant may include mode 1 DG or CG.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (PSFCH) SL neuronology or (PSFCH) SL neuronology.
  • the numerology may include subcarrier spacing, CP length, or CP type.
  • the parameter and/or whether the parameter is applied may be set/limited for the terminal differently or independently for each (PUCCH) UL neuronology or (PUCCH) UL neuronology.
  • whether the parameter and/or the parameter is applied is a minimum value between UL neuronology and SL neuronology, or a minimum value between UL neuronology and SL neuronology.
  • Differently or independently for each terminal. can For example, whether the parameter and/or the parameter is applied may be set/limited for the terminal differently or independently for each combination specific between UL neuronology and SL neurology or for each combination between UL neurology and SL neurology.
  • the TX UE when the TX UE receives the PSFCH (from its target RX UE), the TX UE receives different HARQ feedback information (eg, ACK) having the same reception power (higher than a preset threshold). , NACK) associated with a plurality of PSFCH candidates may be detected. For example, when the TX UE receives the PSFCH (from its target RX UE), the TX UE has the same (peak) output (level) value of the PSFCH sequence correlation different HARQ feedback information ( A plurality of PSFCH candidates related to (eg, ACK, NACK) may be detected.
  • HARQ feedback information eg, ACK
  • NACK HARQ feedback information associated with a plurality of PSFCH candidates
  • the TX UE may be configured to determine the corresponding PSFCH as (A) (always) NACK information or ACK information, or (B) ACK or NACK arbitrarily selected information (or a preset order (eg, NACK - > ACK -> NACK -> ...)), or (C) PSFCH related received power (or (peak) output (level) of PSFCH sequence correlation (higher than a preset threshold) value) may be set to determine ACK or NACK information based on a large sum (or average value or minimum value or maximum value), or (D) may be determined by the terminal implementation.
  • A (always) NACK information or ACK information
  • B ACK or NACK arbitrarily selected information (or a preset order (eg, NACK - > ACK -> NACK -> ...))
  • C) PSFCH related received power (or (peak) output (level) of PSFCH sequence correlation (higher than a preset threshold) value) may be set to determine ACK or NACK information
  • the UE when the UE receives a PSFCH (from its target RX UE), the UE receives a relatively high reception power (higher than a preset threshold) (or (peak) output (level) of the PSFCH sequence correlation. ) value) may be configured to determine whether ACK information or NACK information is present based on the PSFCH.
  • FIG. 13 illustrates a method for a first device to perform wireless communication, according to an embodiment of the present disclosure.
  • the embodiment of FIG. 13 may be combined with various embodiments of the present disclosure.
  • the first device may receive information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station from the base station.
  • the first device may transmit first sidelink control information (SCI) to the second device through a physical sidelink control channel (PSCCH).
  • the first device may transmit a second SCI and MAC PDU (medium access control protocol data unit) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH.
  • PSSCH physical sidelink shared channel
  • the first device may determine a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH.
  • PSFCH physical sidelink feedback channel
  • the first device may transmit the SL HARQ feedback for the MAC PDU to the base station based on the UL resource.
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numonology of the UL BWP, where N is the SL BWP. It may be determined based on the minimum value among the pneumology and the pneumology of the UL BWP, and X may be determined based on information related to priority.
  • the priority may be the highest priority among at least one priority allowed for an SL grant allocated by the base station for transmission of the MAC PDU.
  • X determined based on a low priority may be greater than X determined based on a high priority.
  • X may be determined based on a latency requirement, and X determined based on a long delay requirement may be greater than X determined based on a short delay requirement.
  • X may be determined based on a HARQ feedback option related to the MAC PDU, and the HARQ feedback option may be either a only NACK feedback option or an ACK/NACK feedback option, and the ACK/NACK feedback option X determined based on the X may be greater than X determined based on the only NACK feedback option.
  • X may be determined based on the period of the PSFCH resource, and X determined based on the period of the large PSFCH resource may be greater than X determined based on the period of the small PSFCH resource.
  • the first device may report information related to simultaneous processing capability for the PSFCH of the first device to the base station.
  • X may be determined based on the simultaneous processing capability for the PSFCH of the first device, and X determined based on the simultaneous processing capability for the low PSFCH is based on the simultaneous processing capability for the high PSFCH. It can be greater than X determined by
  • X may be determined based on an error between a first synchronization related to Uu communication between the base station and the first device and a second synchronization related to SL communication between the first device and the second device, and , X determined based on a large error may be greater than X determined based on a small error.
  • the first device may report information related to the error to the base station.
  • the first device may measure a channel busy ratio (CBR) for the resource pool, and the first device may report information on the CBR to the base station.
  • CBR channel busy ratio
  • X may be determined based on the CBR, and X determined based on the large CBR may be smaller than X determined based on the small CBR.
  • X may be determined based on the cast type of the first device, the cast type may include groupcast or unicast, and X determined based on the groupcast may be determined based on the unicast. It may be smaller than the determined X. Additionally, for example, the first device may report information related to the cast type to the base station.
  • the minimum time gap may be less than or equal to a time gap between the UL resource and the PSFCH resource.
  • the UL resource may be associated with at least one PSFCH resource
  • the PSFCH resource may be a last PSFCH resource among the at least one PSFCH resource
  • the minimum time gap may be between the UL resource and the PSFCH resource. Based on a greater than a time gap of , the SL HARQ feedback related to the last PSFCH resource may not be included in the SL HARQ feedback transmitted to the base station.
  • the SL HARQ feedback is NACK based on a plurality of PSFCHs having the same reception power being detected on the PSFCH resource.
  • the processor 102 of the first device 100 receives information related to an uplink (UL) resource for reporting SL (sidelink) hybrid automatic repeat request (HARQ) feedback to the base station from the base station. can be controlled.
  • the processor 102 of the first device 100 may control the transceiver 106 to transmit first sidelink control information (SCI) to the second device through a physical sidelink control channel (PSCCH).
  • the processor 102 of the first device 100 transmits a second SCI and a MAC medium access control protocol data unit (PDU) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH.
  • the transceiver 106 may be controlled.
  • the processor 102 of the first device 100 may determine a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH.
  • the processor 102 of the first device 100 may control the transceiver 106 to transmit the SL HARQ feedback for the MAC PDU to the base station based on the UL resource.
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numonology of the UL BWP, where N is the SL BWP. It may be determined based on the minimum value among the pneumology and the pneumology of the UL BWP, and X may be determined based on information related to priority.
  • a first device for performing wireless communication may include one or more memories for storing instructions; one or more transceivers; and one or more processors connecting the one or more memories and the one or more transceivers.
  • the one or more processors may execute the instructions to receive, from a base station, information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station; transmit first sidelink control information (SCI) to the second device through a physical sidelink control channel (PSCCH); transmit a second SCI and a MAC PDU (medium access control protocol data unit) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH; determine a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH; and based on the UL resource, the SL HARQ feedback for the MAC PDU may be transmitted to the base station.
  • SCI sidelink control information
  • PSSCH physical sidelink shared channel
  • PSFCH physical sidelink feedback channel
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numonology of the UL BWP, where N is the SL BWP. It may be determined based on the minimum value among the numerology and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • a device may include one or more processors; and one or more memories operably coupled by the one or more processors and storing instructions.
  • the one or more processors may execute the instructions to receive, from a base station, information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station; transmitting first sidelink control information (SCI) to the second terminal through a physical sidelink control channel (PSCCH); transmitting a second SCI and a MAC PDU (medium access control protocol data unit) to the second terminal through a physical sidelink shared channel (PSSCH) related to the PSCCH; determine a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH; and based on the UL resource, the SL HARQ feedback for the MAC PDU may be transmitted to the base station.
  • SCI sidelink control information
  • PSSCH physical sidelink shared channel
  • PSFCH physical sidelink feedback channel
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numonology of the UL BWP, where N is the SL BWP. It may be determined based on the minimum value among the pneumology and the pneumology of the UL BWP, and X may be determined based on information related to priority.
  • a non-transitory computer-readable storage medium recording instructions may be provided.
  • the instructions when executed by one or more processors, cause the one or more processors to: a UL for reporting, by a first device, a sidelink (SL) hybrid automatic repeat request (HARQ) feedback to a base station (uplink) to receive information related to a resource from a base station; send, by the first device, first sidelink control information (SCI) to a second device through a physical sidelink control channel (PSCCH); transmit, by the first device, a second SCI and a MAC medium access control protocol data unit (PDU) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH; determine, by the first device, a physical sidelink feedback channel (PSFCH) resource based on the index of the slot and the index of the subchannel related to the PSSCH; and the first device may transmit the SL HARQ feedback for the MAC PDU to the base station based on the
  • the minimum time gap between the PSFCH resource and the UL resource may be determined based on N, X, the numerology of the SL BWP (bandwidth part), and the numonology of the UL BWP, where N is the SL BWP. It may be determined based on the minimum value among the numerology and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • FIG. 14 illustrates a method for a base station to perform wireless communication, according to an embodiment of the present disclosure.
  • the embodiment of FIG. 14 may be combined with various embodiments of the present disclosure.
  • the base station may transmit information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station to the first device.
  • the base station may receive the SL HARQ feedback for a MAC PDU (medium access control protocol data unit) from the first device based on the UL resource.
  • the MAC PDU may be transmitted by the first device to a second device through a physical sidelink control channel (PSSCH), and a physical sidelink feedback channel (PSFCH) resource includes an index and sub of a slot related to the PSSCH.
  • PSSCH physical sidelink control channel
  • PSFCH physical sidelink feedback channel
  • the minimum time gap between the UL resource and the PSFCH resource may be determined based on N, X, SL BWP (bandwidth part) numerology, and UL BWP numerology, N may be determined based on a minimum value among the numerology of the SL BWP and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • the processor 202 of the base station 200 transmits information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station to the first device.
  • Transceiver 206 can control
  • the processor 202 of the base station 200 controls the transceiver 206 to receive the SL HARQ feedback for a MAC medium access control protocol data unit (PDU) from the first device based on the UL resource.
  • PDU medium access control protocol data unit
  • the MAC PDU may be transmitted by the first device to a second device through a physical sidelink control channel (PSSCH), and a physical sidelink feedback channel (PSFCH) resource includes an index and sub of a slot related to the PSSCH.
  • PSSCH physical sidelink control channel
  • PSFCH physical sidelink feedback channel
  • the minimum time gap between the UL resource and the PSFCH resource may be determined based on N, X, SL BWP (bandwidth part) numerology, and UL BWP numerology, N may be determined based on a minimum value among the numerology of the SL BWP and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • a base station performing wireless communication may be provided.
  • the base station may include one or more memories to store instructions; one or more transceivers; and one or more processors connecting the one or more memories and the one or more transceivers.
  • the one or more processors execute the instructions to transmit information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station to the first device; and based on the UL resource, the SL HARQ feedback for a MAC PDU (medium access control protocol data unit) may be received from the first device.
  • UL uplink
  • SL sidelink
  • HARQ hybrid automatic repeat request
  • the MAC PDU may be transmitted by the first device to a second device through a physical sidelink control channel (PSSCH), and a physical sidelink feedback channel (PSFCH) resource includes an index and sub of a slot related to the PSSCH. It may be determined based on the index of the channel, and the minimum time gap between the UL resource and the PSFCH resource may be determined based on N, X, SL BWP (bandwidth part) numerology, and UL BWP numerology, N may be determined based on a minimum value among the numerology of the SL BWP and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • PSSCH physical sidelink control channel
  • PSFCH physical sidelink feedback channel
  • an apparatus configured to control a base station may be provided.
  • a device may include one or more processors; and one or more memories operably coupled by the one or more processors and storing instructions.
  • the one or more processors execute the instructions to transmit information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station to the first terminal; and based on the UL resource, the SL HARQ feedback for a MAC PDU (medium access control protocol data unit) may be received from the first terminal.
  • UL uplink
  • SL sidelink
  • HARQ hybrid automatic repeat request
  • the MAC PDU may be transmitted by the first terminal to a second terminal through a physical sidelink control channel (PSSCH), and a physical sidelink feedback channel (PSFCH) resource is an index and sub of a slot related to the PSSCH. It may be determined based on the index of the channel, and the minimum time gap between the UL resource and the PSFCH resource may be determined based on N, X, SL BWP (bandwidth part) numerology, and UL BWP numerology, N may be determined based on a minimum value among the numerology of the SL BWP and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • PSSCH physical sidelink control channel
  • PSFCH physical sidelink feedback channel
  • a non-transitory computer-readable storage medium recording instructions may be provided.
  • the instructions when executed by one or more processors, cause the one or more processors to: UL (by a base station) to report sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station uplink) to transmit information related to a resource to the first device; and, by the base station, based on the UL resource, the SL HARQ feedback for a MAC PDU (medium access control protocol data unit) may be received from the first device.
  • UL by a base station
  • HARQ hybrid automatic repeat request
  • MAC PDU medium access control protocol data unit
  • the MAC PDU may be transmitted by the first device to a second device through a physical sidelink control channel (PSSCH), and a physical sidelink feedback channel (PSFCH) resource includes an index and sub of a slot related to the PSSCH. It may be determined based on the index of the channel, and the minimum time gap between the UL resource and the PSFCH resource may be determined based on N, X, SL BWP (bandwidth part) numerology, and UL BWP numerology, N may be determined based on a minimum value among the numerology of the SL BWP and the numerology of the UL BWP, and X may be determined based on information related to priority.
  • PSSCH physical sidelink control channel
  • PSFCH physical sidelink feedback channel
  • the time gap (the terminal is interested and / or allowed in the MODE 1 SL grant) SL service related (tightest) QoS requirements (eg, delay, reliability), (the highest ) priority, the amount of SL HARQ feedback information (to be transmitted through the UL channel), the congestion level in the (most recent) resource pool (reported to the base station), based on parameters such as the associated SL cast type, Or it can be set independently. For example, since the required number of retransmissions may be higher as the CBR value is higher, the time gap may be set small to ensure the corresponding number of retransmissions within the remaining packet delay budget (PDB).
  • PDB packet delay budget
  • the time gap may be set small.
  • the value of X may be determined based on the highest priority of a logical channel used by the UE for a scheduling request (SR) or a buffer status report (BSR). Accordingly, it is possible to solve the problem that the terminal implementation becomes complicated to support the meaningless/useless capability.
  • SR scheduling request
  • BSR buffer status report
  • FIG. 15 shows a communication system 1 according to an embodiment of the present disclosure.
  • a communication system 1 to which various embodiments of the present disclosure are applied includes a wireless device, a base station, and a network.
  • the wireless device refers to a device that performs communication using a radio access technology (eg, 5G NR (New RAT), LTE (Long Term Evolution)), and may be referred to as a communication/wireless/5G device.
  • a radio access technology eg, 5G NR (New RAT), LTE (Long Term Evolution)
  • the wireless device includes a robot 100a, a vehicle 100b-1, 100b-2, an eXtended Reality (XR) device 100c, a hand-held device 100d, and a home appliance 100e. ), an Internet of Thing (IoT) device 100f, and an AI device/server 400 .
  • the vehicle may include a vehicle equipped with a wireless communication function, an autonomous driving vehicle, a vehicle capable of performing inter-vehicle communication, and the like.
  • the vehicle may include an Unmanned Aerial Vehicle (UAV) (eg, a drone).
  • UAV Unmanned Aerial Vehicle
  • XR devices include AR (Augmented Reality)/VR (Virtual Reality)/MR (Mixed Reality) devices, and include a Head-Mounted Device (HMD), a Head-Up Display (HUD) provided in a vehicle, a television, a smartphone, It may be implemented in the form of a computer, a wearable device, a home appliance, a digital signage, a vehicle, a robot, and the like.
  • the mobile device may include a smartphone, a smart pad, a wearable device (eg, a smart watch, smart glasses), a computer (eg, a laptop computer), and the like.
  • Home appliances may include a TV, a refrigerator, a washing machine, and the like.
  • the IoT device may include a sensor, a smart meter, and the like.
  • the base station and the network may be implemented as a wireless device, and the specific wireless device 200a may operate as a base station/network node to other wireless devices.
  • the wireless communication technology implemented in the wireless devices 100a to 100f of the present specification may include a narrowband Internet of Things for low-power communication as well as LTE, NR, and 6G.
  • NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, may be implemented in standards such as LTE Cat NB1 and/or LTE Cat NB2, and is limited to the above-mentioned names no.
  • the wireless communication technology implemented in the wireless devices 100a to 100f of the present specification may perform communication based on the LTE-M technology.
  • the LTE-M technology may be an example of an LPWAN technology, and may be called by various names such as enhanced machine type communication (eMTC).
  • eMTC enhanced machine type communication
  • LTE-M technology is 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and/or 7) may be implemented in at least one of various standards such as LTE M, and is not limited to the above-described name.
  • the wireless communication technology implemented in the wireless devices 100a to 100f of the present specification is at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) in consideration of low power communication.
  • LPWAN Low Power Wide Area Network
  • the ZigBee technology can create PAN (personal area networks) related to small/low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.
  • the wireless devices 100a to 100f may be connected to the network 300 through the base station 200 .
  • Artificial intelligence (AI) technology may be applied to the wireless devices 100a to 100f , and the wireless devices 100a to 100f may be connected to the AI server 400 through the network 300 .
  • the network 300 may be configured using a 3G network, a 4G (eg, LTE) network, or a 5G (eg, NR) network.
  • the wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but may also communicate directly (e.g. sidelink communication) without passing through the base station/network.
  • the vehicles 100b-1 and 100b-2 may perform direct communication (eg, Vehicle to Vehicle (V2V)/Vehicle to everything (V2X) communication).
  • the IoT device eg, sensor
  • the IoT device may directly communicate with other IoT devices (eg, sensor) or other wireless devices 100a to 100f.
  • Wireless communication/connection 150a, 150b, and 150c may be performed between the wireless devices 100a to 100f/base station 200 and the base station 200/base station 200 .
  • the wireless communication/connection includes uplink/downlink communication 150a and sidelink communication 150b (or D2D communication), and communication between base stations 150c (eg relay, IAB (Integrated Access Backhaul)).
  • This can be done through technology (eg 5G NR)
  • Wireless communication/connection 150a, 150b, 150c allows the wireless device and the base station/radio device, and the base station and the base station to transmit/receive wireless signals to each other.
  • the wireless communication/connection 150a, 150b, 150c may transmit/receive a signal through various physical channels.
  • various signal processing processes eg, channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.
  • resource allocation processes etc.
  • FIG. 16 illustrates a wireless device according to an embodiment of the present disclosure.
  • the first wireless device 100 and the second wireless device 200 may transmit/receive wireless signals through various wireless access technologies (eg, LTE, NR).
  • ⁇ first wireless device 100, second wireless device 200 ⁇ is ⁇ wireless device 100x, base station 200 ⁇ of FIG. 15 and/or ⁇ wireless device 100x, wireless device 100x) ⁇ can be matched.
  • the first wireless device 100 includes one or more processors 102 and one or more memories 104 , and may further include one or more transceivers 106 and/or one or more antennas 108 .
  • the processor 102 controls the memory 104 and/or the transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed herein.
  • the processor 102 may process the information in the memory 104 to generate the first information/signal, and then transmit a wireless signal including the first information/signal through the transceiver 106 .
  • the processor 102 may store the information obtained from the signal processing of the second information/signal in the memory 104 after receiving the radio signal including the second information/signal through the transceiver 106 .
  • the memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102 .
  • the memory 104 may provide instructions for performing some or all of the processes controlled by the processor 102 , or for performing the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed herein. may store software code including
  • the processor 102 and the memory 104 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
  • a wireless communication technology eg, LTE, NR
  • the transceiver 106 may be coupled with the processor 102 and may transmit and/or receive wireless signals via one or more antennas 108 .
  • the transceiver 106 may include a transmitter and/or a receiver.
  • the transceiver 106 may be used interchangeably with a radio frequency (RF) unit.
  • RF radio frequency
  • a wireless device may mean a communication modem/circuit/chip.
  • the second wireless device 200 includes one or more processors 202 , one or more memories 204 , and may further include one or more transceivers 206 and/or one or more antennas 208 .
  • the processor 202 controls the memory 204 and/or the transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed herein.
  • the processor 202 may process the information in the memory 204 to generate third information/signal, and then transmit a wireless signal including the third information/signal through the transceiver 206 .
  • the processor 202 may receive the radio signal including the fourth information/signal through the transceiver 206 , and then store information obtained from signal processing of the fourth information/signal in the memory 204 .
  • the memory 204 may be connected to the processor 202 and may store various information related to the operation of the processor 202 .
  • the memory 204 may provide instructions for performing some or all of the processes controlled by the processor 202 , or for performing the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed herein. may store software code including
  • the processor 202 and the memory 204 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
  • a wireless communication technology eg, LTE, NR
  • the transceiver 206 may be coupled to the processor 202 and may transmit and/or receive wireless signals via one or more antennas 208 .
  • the transceiver 206 may include a transmitter and/or a receiver.
  • the transceiver 206 may be used interchangeably with an RF unit.
  • a wireless device may mean a communication modem/circuit/chip.
  • one or more protocol layers may be implemented by one or more processors 102 , 202 .
  • one or more processors 102 , 202 may implement one or more layers (eg, functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP).
  • the one or more processors 102, 202 may be configured to process one or more Protocol Data Units (PDUs) and/or one or more Service Data Units (SDUs) according to the description, function, procedure, proposal, method, and/or operational flowcharts disclosed herein.
  • PDUs Protocol Data Units
  • SDUs Service Data Units
  • One or more processors 102, 202 may generate messages, control information, data, or information according to the description, function, procedure, proposal, method, and/or flow charts disclosed herein.
  • the one or more processors 102 and 202 generate a signal (eg, a baseband signal) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and/or methods disclosed in this document. , to one or more transceivers 106 and 206 .
  • the one or more processors 102 , 202 may receive signals (eg, baseband signals) from one or more transceivers 106 , 206 , and may be described, functions, procedures, proposals, methods, and/or flowcharts of operation disclosed herein.
  • PDUs, SDUs, messages, control information, data, or information may be acquired according to the above.
  • One or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor, or microcomputer.
  • One or more processors 102, 202 may be implemented by hardware, firmware, software, or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Programmable Logic Devices
  • FPGAs Field Programmable Gate Arrays
  • firmware or software may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, and the like.
  • the descriptions, functions, procedures, suggestions, methods, and/or flow charts disclosed in this document provide that firmware or software configured to perform is included in one or more processors 102 , 202 , or stored in one or more memories 104 , 204 . It may be driven by the above processors 102 and 202 .
  • the descriptions, functions, procedures, suggestions, methods, and/or flow charts disclosed herein may be implemented using firmware or software in the form of code, instructions, and/or a set of instructions.
  • One or more memories 104 , 204 may be coupled to one or more processors 102 , 202 and may store various forms of data, signals, messages, information, programs, code, instructions, and/or instructions.
  • One or more memories 104 , 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer readable storage media, and/or combinations thereof.
  • One or more memories 104 , 204 may be located inside and/or external to one or more processors 102 , 202 .
  • one or more memories 104 , 204 may be coupled to one or more processors 102 , 202 through various technologies, such as wired or wireless connections.
  • One or more transceivers 106 , 206 may transmit user data, control information, radio signals/channels, etc. referred to in the methods and/or operational flowcharts of this document to one or more other devices.
  • the one or more transceivers 106, 206 may receive user data, control information, radio signals/channels, etc. referred to in the descriptions, functions, procedures, suggestions, methods and/or flow charts, etc. disclosed herein, from one or more other devices. have.
  • one or more transceivers 106 , 206 may be coupled to one or more processors 102 , 202 and may transmit and receive wireless signals.
  • one or more processors 102 , 202 may control one or more transceivers 106 , 206 to transmit user data, control information, or wireless signals to one or more other devices.
  • one or more processors 102 , 202 may control one or more transceivers 106 , 206 to receive user data, control information, or wireless signals from one or more other devices.
  • one or more transceivers 106, 206 may be coupled with one or more antennas 108, 208, and the one or more transceivers 106, 206 may be coupled via one or more antennas 108, 208 to the descriptions, functions, and functions disclosed herein. , procedures, proposals, methods and/or operation flowcharts, etc.
  • one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
  • the one or more transceivers 106, 206 convert the received radio signal/channel, etc. from the RF band signal to process the received user data, control information, radio signal/channel, etc. using the one or more processors 102, 202. It can be converted into a baseband signal.
  • One or more transceivers 106 and 206 may convert user data, control information, radio signals/channels, etc. processed using one or more processors 102 and 202 from baseband signals to RF band signals.
  • one or more transceivers 106 , 206 may include (analog) oscillators and/or filters.
  • FIG. 17 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure.
  • the signal processing circuit 1000 may include a scrambler 1010 , a modulator 1020 , a layer mapper 1030 , a precoder 1040 , a resource mapper 1050 , and a signal generator 1060 .
  • the operations/functions of FIG. 17 may be performed by the processors 102 and 202 and/or the transceivers 106 and 206 of FIG. 16 .
  • the hardware elements of FIG. 17 may be implemented in the processors 102 , 202 and/or transceivers 106 , 206 of FIG. 16 .
  • blocks 1010 to 1060 may be implemented in the processors 102 and 202 of FIG. 16 .
  • blocks 1010 to 1050 may be implemented in the processors 102 and 202 of FIG. 16
  • block 1060 may be implemented in the transceivers 106 and 206 of FIG. 16 .
  • the codeword may be converted into a wireless signal through the signal processing circuit 1000 of FIG. 17 .
  • the codeword is a coded bit sequence of an information block.
  • the information block may include a transport block (eg, a UL-SCH transport block, a DL-SCH transport block).
  • the radio signal may be transmitted through various physical channels (eg, PUSCH, PDSCH).
  • the codeword may be converted into a scrambled bit sequence by the scrambler 1010 .
  • a scramble sequence used for scrambling is generated based on an initialization value, and the initialization value may include ID information of a wireless device, and the like.
  • the scrambled bit sequence may be modulated by a modulator 1020 into a modulation symbol sequence.
  • the modulation method may include pi/2-Binary Phase Shift Keying (pi/2-BPSK), m-Phase Shift Keying (m-PSK), m-Quadrature Amplitude Modulation (m-QAM), and the like.
  • the complex modulation symbol sequence may be mapped to one or more transport layers by the layer mapper 1030 .
  • Modulation symbols of each transport layer may be mapped to corresponding antenna port(s) by the precoder 1040 (precoding).
  • the output z of the precoder 1040 may be obtained by multiplying the output y of the layer mapper 1030 by the precoding matrix W of N*M.
  • N is the number of antenna ports
  • M is the number of transmission layers.
  • the precoder 1040 may perform precoding after performing transform precoding (eg, DFT transform) on the complex modulation symbols. Also, the precoder 1040 may perform precoding without performing transform precoding.
  • the resource mapper 1050 may map modulation symbols of each antenna port to a time-frequency resource.
  • the time-frequency resource may include a plurality of symbols (eg, a CP-OFDMA symbol, a DFT-s-OFDMA symbol) in the time domain and a plurality of subcarriers in the frequency domain.
  • CP Cyclic Prefix
  • DAC Digital-to-Analog Converter
  • the signal processing process for the received signal in the wireless device may be configured in reverse of the signal processing process 1010 to 1060 of FIG. 17 .
  • the wireless device eg, 100 and 200 of FIG. 16
  • the received radio signal may be converted into a baseband signal through a signal restorer.
  • the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module.
  • ADC analog-to-digital converter
  • FFT Fast Fourier Transform
  • the baseband signal may be restored to a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a descrambling process.
  • the codeword may be restored to the original information block through decoding.
  • the signal processing circuit (not shown) for the received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a descrambler, and a decoder.
  • the wireless device may be implemented in various forms according to use-examples/services (refer to FIG. 15 ).
  • wireless devices 100 and 200 correspond to wireless devices 100 and 200 of FIG. 16 , and various elements, components, units/units, and/or modules ) can be composed of
  • the wireless devices 100 and 200 may include a communication unit 110 , a control unit 120 , a memory unit 130 , and an additional element 140 .
  • the communication unit may include communication circuitry 112 and transceiver(s) 114 .
  • communication circuitry 112 may include one or more processors 102,202 and/or one or more memories 104,204 of FIG. 16 .
  • the transceiver(s) 114 may include one or more transceivers 106 , 206 and/or one or more antennas 108 , 208 of FIG. 16 .
  • the control unit 120 is electrically connected to the communication unit 110 , the memory unit 130 , and the additional element 140 , and controls general operations of the wireless device. For example, the controller 120 may control the electrical/mechanical operation of the wireless device based on the program/code/command/information stored in the memory unit 130 . In addition, the control unit 120 transmits the information stored in the memory unit 130 to the outside (eg, another communication device) through the communication unit 110 through a wireless/wired interface, or through the communication unit 110 to the outside (eg, Information received through a wireless/wired interface from another communication device) may be stored in the memory unit 130 .
  • the outside eg, another communication device
  • Information received through a wireless/wired interface from another communication device may be stored in the memory unit 130 .
  • the additional element 140 may be configured in various ways according to the type of the wireless device.
  • the additional element 140 may include at least one of a power unit/battery, an input/output unit (I/O unit), a driving unit, and a computing unit.
  • the wireless device includes a robot ( FIGS. 15 and 100a ), a vehicle ( FIGS. 15 , 100b-1 , 100b-2 ), an XR device ( FIGS. 15 and 100c ), a mobile device ( FIGS. 15 and 100d ), and a home appliance. (FIG. 15, 100e), IoT device (FIG.
  • digital broadcasting terminal digital broadcasting terminal
  • hologram device public safety device
  • MTC device medical device
  • fintech device or financial device
  • security device climate/environment device
  • It may be implemented in the form of an AI server/device ( FIGS. 15 and 400 ), a base station ( FIGS. 15 and 200 ), and a network node.
  • the wireless device may be mobile or used in a fixed location depending on the use-example/service.
  • various elements, components, units/units, and/or modules in the wireless devices 100 and 200 may be entirely interconnected through a wired interface, or at least some of them may be wirelessly connected through the communication unit 110 .
  • the control unit 120 and the communication unit 110 are connected by wire, and the control unit 120 and the first unit (eg, 130 and 140 ) are connected to the communication unit 110 through the communication unit 110 . It can be connected wirelessly.
  • each element, component, unit/unit, and/or module within the wireless device 100 , 200 may further include one or more elements.
  • the controller 120 may be configured with one or more processor sets.
  • the controller 120 may include a set of a communication control processor, an application processor, an electronic control unit (ECU), a graphic processing processor, a memory control processor, and the like.
  • the memory unit 130 may include random access memory (RAM), dynamic RAM (DRAM), read only memory (ROM), flash memory, volatile memory, and non-volatile memory. volatile memory) and/or a combination thereof.
  • FIG. 18 will be described in more detail with reference to the drawings.
  • the portable device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, smart glasses), and a portable computer (eg, a laptop computer).
  • a mobile device may be referred to as a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), an advanced mobile station (AMS), or a wireless terminal (WT).
  • MS mobile station
  • UT user terminal
  • MSS mobile subscriber station
  • SS subscriber station
  • AMS advanced mobile station
  • WT wireless terminal
  • the portable device 100 includes an antenna unit 108 , a communication unit 110 , a control unit 120 , a memory unit 130 , a power supply unit 140a , an interface unit 140b , and an input/output unit 140c .
  • the antenna unit 108 may be configured as a part of the communication unit 110 .
  • Blocks 110 to 130/140a to 140c respectively correspond to blocks 110 to 130/140 of FIG. 18 .
  • the communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with other wireless devices and base stations.
  • the controller 120 may control components of the portable device 100 to perform various operations.
  • the controller 120 may include an application processor (AP).
  • the memory unit 130 may store data/parameters/programs/codes/commands necessary for driving the portable device 100 . Also, the memory unit 130 may store input/output data/information.
  • the power supply unit 140a supplies power to the portable device 100 and may include a wired/wireless charging circuit, a battery, and the like.
  • the interface unit 140b may support the connection between the portable device 100 and other external devices.
  • the interface unit 140b may include various ports (eg, an audio input/output port and a video input/output port) for connection with an external device.
  • the input/output unit 140c may receive or output image information/signal, audio information/signal, data, and/or information input from a user.
  • the input/output unit 140c may include a camera, a microphone, a user input unit, a display unit 140d, a speaker, and/or a haptic module.
  • the input/output unit 140c obtains information/signals (eg, touch, text, voice, image, video) input from the user, and the obtained information/signal is stored in the memory unit 130 . can be saved.
  • the communication unit 110 may convert the information/signal stored in the memory into a wireless signal, and transmit the converted wireless signal directly to another wireless device or to a base station. Also, after receiving a radio signal from another radio device or base station, the communication unit 110 may restore the received radio signal to original information/signal.
  • the restored information/signal may be stored in the memory unit 130 and output in various forms (eg, text, voice, image, video, haptic) through the input/output unit 140c.
  • the vehicle or autonomous driving vehicle may be implemented as a mobile robot, vehicle, train, manned/unmanned aerial vehicle (AV), ship, or the like.
  • AV unmanned aerial vehicle
  • the vehicle or autonomous driving vehicle 100 includes an antenna unit 108 , a communication unit 110 , a control unit 120 , a driving unit 140a , a power supply unit 140b , a sensor unit 140c and autonomous driving. It may include a part 140d.
  • the antenna unit 108 may be configured as a part of the communication unit 110 .
  • Blocks 110/130/140a-140d correspond to blocks 110/130/140 of FIG. 18, respectively.
  • the communication unit 110 may transmit/receive signals (eg, data, control signals, etc.) to and from external devices such as other vehicles, base stations (eg, base stations, roadside units, etc.), servers, and the like.
  • the controller 120 may control elements of the vehicle or the autonomous driving vehicle 100 to perform various operations.
  • the controller 120 may include an Electronic Control Unit (ECU).
  • the driving unit 140a may cause the vehicle or the autonomous driving vehicle 100 to run on the ground.
  • the driving unit 140a may include an engine, a motor, a power train, a wheel, a brake, a steering device, and the like.
  • the power supply unit 140b supplies power to the vehicle or the autonomous driving vehicle 100 , and may include a wired/wireless charging circuit, a battery, and the like.
  • the sensor unit 140c may obtain vehicle status, surrounding environment information, user information, and the like.
  • the sensor unit 140c includes an inertial measurement unit (IMU) sensor, a collision sensor, a wheel sensor, a speed sensor, an inclination sensor, a weight sensor, a heading sensor, a position module, and a vehicle forward movement.
  • IMU inertial measurement unit
  • a collision sensor a wheel sensor
  • a speed sensor a speed sensor
  • an inclination sensor a weight sensor
  • a heading sensor a position module
  • a vehicle forward movement / may include a reverse sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, an illuminance sensor, a pedal position sensor, and the like.
  • the autonomous driving unit 140d includes a technology for maintaining a driving lane, a technology for automatically adjusting speed such as adaptive cruise control, a technology for automatically driving along a predetermined route, and a technology for automatically setting a route when a destination is set. technology can be implemented.
  • the communication unit 110 may receive map data, traffic information data, and the like from an external server.
  • the autonomous driving unit 140d may generate an autonomous driving route and a driving plan based on the acquired data.
  • the controller 120 may control the driving unit 140a to move the vehicle or the autonomous driving vehicle 100 along the autonomous driving path (eg, speed/direction adjustment) according to the driving plan.
  • the communication unit 110 may non/periodically acquire the latest traffic information data from an external server, and may acquire surrounding traffic information data from surrounding vehicles.
  • the sensor unit 140c may acquire vehicle state and surrounding environment information.
  • the autonomous driving unit 140d may update the autonomous driving route and driving plan based on the newly acquired data/information.
  • the communication unit 110 may transmit information about a vehicle location, an autonomous driving route, a driving plan, and the like to an external server.
  • the external server may predict traffic information data in advance using AI technology or the like based on information collected from the vehicle or autonomous vehicles, and may provide the predicted traffic information data to the vehicle or autonomous vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé pour la mise en œuvre d'une communication radio par un premier dispositif, et un dispositif le supportant. Le procédé peut comprendre les étapes consistant à : recevoir, en provenance d'une station de base, des informations associées à une ressource de liaison montante (UL) pour rapporter un retour de demande de répétition automatique hybride (HARQ) de liaison latérale (SL) à la station de base ; émettre des premières informations de contrôle de liaison latérale (SCI) vers un second dispositif par l'intermédiaire d'un canal physique de contrôle de liaison latérale (PSCCH) ; émettre des secondes SCI et une unité de données de protocole de contrôle d'accès au support (PDU MAC) vers le second dispositif par l'intermédiaire d'un canal physique partagé de liaison latérale (PSSCH) associé au PSCCH ; déterminer une ressource de canal physique de retour de liaison latérale (PSFCH) sur la base d'un indice d'un sous-canal et d'un indice d'un créneau associé au PSSCH ; et émettre le retour d'HARQ de SL sur la PDU MAC vers la station de base sur la base de la ressource UL. Un intervalle de temps minimum entre la ressource de PSFCH et la ressource d'UL peut être déterminé sur la base de N, X, numérologie d'une partie de bande passante (BWP) de SL, et numérologie d'une BWP d'UL, N pouvant être déterminé sur la base d'une valeur minimale parmi la numérologie de la BWP de SL et la numérologie de la BWP d'UL, et X pouvant être déterminé sur la base d'informations relatives à une priorité.
PCT/KR2021/006050 2020-05-13 2021-05-14 Procédé et dispositif pour signaler un retour harq de sl à une station de base en nr v2x Ceased WO2021230695A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/924,760 US12382486B2 (en) 2020-05-13 2021-05-14 Method and device for reporting SL HARQ feedback to base station in NR V2X
KR1020227039613A KR20230010645A (ko) 2020-05-14 2021-05-14 Nr v2x에서 sl harq 피드백을 기지국에게 보고하는 방법 및 장치
CN202180061478.3A CN116158037A (zh) 2020-05-14 2021-05-14 用于在nr v2x中向基站报告sl harq反馈的方法和设备

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US202063025159P 2020-05-14 2020-05-14
US63/025,159 2020-05-14
KR20200061018 2020-05-21
KR10-2020-0061018 2020-05-21
KR10-2020-0106148 2020-08-24
KR20200106148 2020-08-24

Publications (1)

Publication Number Publication Date
WO2021230695A1 true WO2021230695A1 (fr) 2021-11-18

Family

ID=78524675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/006050 Ceased WO2021230695A1 (fr) 2020-05-13 2021-05-14 Procédé et dispositif pour signaler un retour harq de sl à une station de base en nr v2x

Country Status (3)

Country Link
KR (1) KR20230010645A (fr)
CN (1) CN116158037A (fr)
WO (1) WO2021230695A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024130579A1 (fr) * 2022-12-21 2024-06-27 Oppo广东移动通信有限公司 Procédé et appareil de communication
WO2024229686A1 (fr) * 2023-05-09 2024-11-14 Nokia Shanghai Bell Co., Ltd. Détermination de ressource de rétroaction harq pour sl-u

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025010698A1 (fr) * 2023-07-13 2025-01-16 Qualcomm Incorporated Techniques de transmission de canal physique de rétroaction latérale
CN117318907B (zh) * 2023-11-29 2024-06-07 深圳传音控股股份有限公司 处理方法、通信设备及存储介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200099479A1 (en) * 2018-09-21 2020-03-26 Kt Corporation Method and apparatus for transmitting sidelink harq feedback information

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102868568B1 (ko) * 2018-11-02 2025-10-10 주식회사 아이티엘 Nr v2x 시스템에서 harq 피드백 절차 수행 방법 및 그 장치

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200099479A1 (en) * 2018-09-21 2020-03-26 Kt Corporation Method and apparatus for transmitting sidelink harq feedback information

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Enhancements to scheduling/HARQ for NR URLLC", 3GPP DRAFT; R1-1910829 URLLC SCHEDULINGHARQ, vol. RAN WG1, 8 October 2019 (2019-10-08), Chongqing, China, pages 1 - 7, XP051789614 *
MEDIATEK INC: "Remaining issues on UCI enhancements", 3GPP DRAFT; R1-2001840, vol. RAN WG1, 11 April 2020 (2020-04-11), pages 1 - 6, XP051875307 *
MODERATOR (ERICSSON): "Text proposal for TS 38.213 related to the agreements in [100e-NR- 5G_V2X_NRSL-RA_Mode1-02]", 3GPP DRAFT; R1-2002821, vol. RAN WG1, 25 April 2020 (2020-04-25), pages 1 - 2, XP051878563 *
OPPO: "Discussion on remaining open issue for mode 2", 3GPP DRAFT; R1-2000493, vol. RAN WG1, 15 February 2020 (2020-02-15), pages 1 - 14, XP051853330 *
OPPO: "Discussion on remaining open issues for mode 2", 3GPP DRAFT; R1-2001749, vol. RAN WG1, 11 April 2020 (2020-04-11), pages 1 - 17, XP051875248 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024130579A1 (fr) * 2022-12-21 2024-06-27 Oppo广东移动通信有限公司 Procédé et appareil de communication
WO2024229686A1 (fr) * 2023-05-09 2024-11-14 Nokia Shanghai Bell Co., Ltd. Détermination de ressource de rétroaction harq pour sl-u

Also Published As

Publication number Publication date
CN116158037A (zh) 2023-05-23
KR20230010645A (ko) 2023-01-19

Similar Documents

Publication Publication Date Title
WO2022154453A1 (fr) Procédé et dispositif de sélection de ressource dans nr v2x sur la base d'une détection partielle
WO2021206527A1 (fr) Procédé et dispositif pour réserver une ressource dans nr v2x
WO2021215829A1 (fr) Procédé et appareil permettant d'effectuer une transmission de psfch dans une v2x en nr
WO2022031145A1 (fr) Procédé et appareil permettant une économie d'énergie en nr v2x
WO2021071331A1 (fr) Procédé et dispositif de transmission et de réception d'informations de rétroaction harq sur la base du format sci dans nr v2x
WO2022071741A1 (fr) Procédé et dispositif de réalisation de communication sl dans v2x nr sur la base d'informations auxiliaires
WO2021221363A1 (fr) Procédé et appareil permettant de réaliser une communication sl sur la base d'un surdébit de psfch dans v2x de nr
WO2022092894A1 (fr) Procédé et appareil de transmission et de réception d'informations relatives à une collision de ressources dans nr v2x
WO2022045718A1 (fr) Procédé et appareil pour réaliser une resélection de ressources dans nr v2x
WO2021071192A1 (fr) Procédé et dispositif de rapport de rétroaction harq à une sation de base dans nr v2x
WO2021071330A1 (fr) Procédé et appareil de rapport d'informations de rétroaction harq à la station de base dans nr v2x
WO2022154450A1 (fr) Procédé et dispositif de réalisation d'opération drx sl sur la base d'une rétroaction harq dans v2x nr
WO2022139491A1 (fr) Procédé et dispositif pour effectuer une opération drx sl sur la base d'une configuration drx par défaut dans nr v2x
WO2021101307A1 (fr) Procédé et appareil de demande de csi dans nr v2x
WO2022154616A1 (fr) Procédé et dispositif d'obtention d'une valeur cbr sur la base d'une détection partielle dans la technologie nr v2x
WO2021071194A1 (fr) Procédé et dispositif pour déterminer la priorité de la transmission montante dans nr v2x
WO2021086163A1 (fr) Procédé et dispositif de réalisation de transmission sl en nr v2x
WO2021101308A1 (fr) Procédé et dispositif de transmission de signal de référence dans nr v2x
WO2021071193A1 (fr) Procédé et dispositif pour la transmission de rétroaction harq sur la base de la priorité dans nr v2x
WO2021230695A1 (fr) Procédé et dispositif pour signaler un retour harq de sl à une station de base en nr v2x
WO2021112579A1 (fr) Procédé et appareil pour la transmission d'informations de commande en v2x nr
WO2022235095A1 (fr) Procédé et appareil pour déterminer une ressource candidate pour une détection partielle dans v2x nr
WO2022203438A1 (fr) Procédé et dispositif de transmission d'une rétroaction harq sl dans nr v2x
WO2021206496A1 (fr) Procédé et appareil permettant d'effectuer des communication sl mode 1 en nr v2x
WO2021112575A1 (fr) Procédé et appareil d'information de commande d'adaptation de débit dans nr v2x

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21803168

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21803168

Country of ref document: EP

Kind code of ref document: A1

WWG Wipo information: grant in national office

Ref document number: 17924760

Country of ref document: US