Method and apparatus for performing a prioritization procedure in NR V2X

Abstract

Provided is a method for performing wireless communication by a first device and an apparatus supporting the method. The method may include the following steps: receiving information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station; sending a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second device through a physical sublink control channel (PSCCH); sending the second SCI and data to the second device through the PSSCH; generating a SL HARQ-ACK report for the data; performing a process for prioritizing the first PUCCH and the second PUCCH based on an overlap of the second PUCCH with a smaller priority index and the first PUCCH; performing a process for prioritizing the first PUCCH and the third PUCCH based on an overlap of the third PUCCH with a larger priority index and the first PUCCH; selecting a first PUSCH in a process for resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report; in resolving an overlap of at least one PUCCH without a SL HARQ-ACK report, selecting a first PUSCH ... After the overlap of at least one PUCCH or at least one PUSCH of the HARQ‑ACK report, determine the overlap of the first PUCCH and the first PUSCH; and send the SL HARQ‑ACK report to the base station through the first PUSCH based on the first PUSCH with a smaller priority index that does not include uplink control information (UCI).

Description

Technical Field

[0001] The present disclosure relates to wireless communication systems. Background Art

[0002] Sidelink (SL) communication is a communication scheme in which a direct link is established between user equipments (UEs) and the UEs exchange voice and data directly with each other without the intervention of an evolved Node B (eNB). SL communication is being considered as a solution to the eNB overhead caused by the rapid growth of data traffic. V2X (Vehicle to Everything) refers to a communication technology used by vehicles to exchange information with other vehicles, pedestrians, and objects equipped with infrastructure. V2X can be divided into four types such as V2V (Vehicle to Vehicle), V2I (Vehicle to Infrastructure), V2N (Vehicle to Network), and V2P (Vehicle to Pedestrian). V2X communication can be provided through a PC5 interface and / or a Uu interface.

[0003] In addition, as more and more communication devices require larger communication capacity, the need for enhanced mobile broadband communication relative to traditional radio access technology (RAT) is rising. Therefore, the design of communication systems taking into account UEs or services that are sensitive to reliability and latency has also been discussed. In addition, the next generation of radio access technologies based on enhanced mobile broadband communication, massive machine type communication (MTC), ultra-reliable low latency communication (URLLC), etc. can be referred to as new RAT (radio access technology) or NR (new radio). In this article, NR can also support vehicle-to-everything (V2X) communication.

[0004] Figure 1 is a diagram for describing NR-based V2X communication compared with V2X communication based on a RAT used before NR. Figure 1 The embodiments of the present disclosure may be combined with various embodiments of the present disclosure.

[0005] Regarding V2X communication, when discussing the RAT used before NR, the focus is on the scheme of providing safety services based on V2X messages such as BSM (Basic Safety Message), CAM (Cooperative Awareness Message) and DENM (Decentralized Environment Notification Message). V2X messages may include location information, dynamic information, attribute information, etc. For example, a UE may send a periodic message type CAM and / or an event-triggered message type DENM to another UE.

[0006] Since then, various V2X scenarios have been proposed in NR regarding V2X communication. For example, these various V2X scenarios may include vehicle platooning, advanced driving, extended sensors, remote driving, etc. Summary of the invention

[0007] Technical Purpose

[0008] In addition, it is necessary to define the operation of the UE when the PUCCH for SL HARQ-ACK reporting overlaps with the eMBB PUCCH and / or eMBB PUSCH and / or URLLC PUCCH and / or URLLC PUSCH in time. For example, if at least one of the SLPUCCH, eMBB PUCCH, eMBB PUSCH, URLLC PUCCH and / or URLLC PUSCH partially or completely overlaps in the time domain, the UE needs to determine the channel to be transmitted among these channels.

[0009] Technical Solution

[0010] In one embodiment, a method for performing wireless communication by a first device is provided. The method may include the following steps: receiving information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station; sending a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second device through a physical sublink control channel (PSCCH); sending the second SCI and data to the second device through the PSSCH; generating a SL HARQ-ACK report for the data; performing a process for prioritizing the first PUCCH and the second PUCCH based on an overlap of a second PUCCH with a smaller priority index and the first PUCCH; performing a process for prioritizing the first PUCCH and the third PUCCH based on an overlap of a third PUCCH with a larger priority index and the first PUCCH; selecting a first PUSCH in a process for resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report; in resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report, After the overlap of the at least one PUCCH or the at least one PUSCH of the HARQ-ACK report, the overlap of the first PUCCH and the first PUSCH is determined; and the SL HARQ-ACK report is sent to the base station through the first PUSCH based on the first PUSCH with the smaller priority index that does not include uplink control information (UCI).

[0011] In one embodiment, a first device configured to perform wireless communication is provided. The first device may include: one or more memories storing instructions; one or more transceivers; and one or more processors connected to the one or more memories and the one or more transceivers. The one or more processors may execute instructions to: receive information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station; send a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second device via a physical sublink control channel (PSCCH); send the second SCI and data to the second device via the PSSCH; generate a SL HARQ-ACK report for the data; perform a process for prioritizing the first PUCCH and the second PUCCH based on an overlap of a second PUCCH with a smaller priority index and the first PUCCH; perform a process for prioritizing the first PUCCH and the third PUCCH based on an overlap of a third PUCCH with a larger priority index and the first PUCCH; select a first PUSCH in a process for resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report; in resolving an overlap of the SL After the overlap of the at least one PUCCH or the at least one PUSCH of the HARQ-ACK report, the overlap of the first PUCCH and the first PUSCH is determined; and the SL HARQ-ACK report is sent to the base station through the first PUSCH based on the first PUSCH with the smaller priority index that does not include uplink control information (UCI).

[0012] Effects of the present disclosure

[0013] The user equipment (UE) can efficiently perform SL communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a diagram for describing NR-based V2X communication compared with V2X communication based on a RAT used before NR.

[0015] Figure 2 The structure of the NR system according to an embodiment of the present disclosure is shown.

[0016] Figure 3 A radio protocol architecture according to an embodiment of the present disclosure is shown.

[0017] Figure 4 The structure of a radio frame of NR according to an embodiment of the present disclosure is shown.

[0018] Figure 5 The structure of the time slot of the NR frame according to an embodiment of the present disclosure is shown.

[0019] Figure 6 An example of a BWP according to an embodiment of the present disclosure is shown.

[0020] Figure 7 A UE performing V2X or SL communication according to an embodiment of the present disclosure is shown.

[0021] Figure 8 A process of performing V2X or SL communication by a UE based on a transmission mode according to an embodiment of the present disclosure is shown.

[0022] Fig. 9 Three broadcast types are shown according to embodiments of the present disclosure.

[0023] Fig.10 A process of prioritizing UL transmission by a UE based on an embodiment of the present disclosure is shown.

[0024] Fig.11 A method for a first device to perform wireless communication based on an embodiment of the present disclosure is shown.

[0025] Fig.12 A method for a base station to perform wireless communication based on an embodiment of the present disclosure is shown.

[0026] Fig.13 A communication system 1 according to an embodiment of the present disclosure is shown.

[0027] Fig.14 A wireless device according to an embodiment of the present disclosure is shown.

[0028] Fig.15 A signal processing circuit for transmitting a signal according to an embodiment of the present disclosure is shown.

[0029] Fig.16 Another example of a wireless device according to an embodiment of the present disclosure is shown.

[0030] Fig.17 A handheld device according to an embodiment of the present disclosure is shown.

[0031] Fig.18 A vehicle or autonomous vehicle according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0032] In the present disclosure, "A or B" may mean "only A", "only B", or "both A and B". In other words, in the present disclosure, "A or B" may be interpreted as "A and / or B". For example, in the present disclosure, "A, B or C" may mean "only A", "only B", "only C", or "any combination of A, B, C".

[0033] A slash ( / ) or a comma used in the present disclosure may mean "and / or". For example, "A / B" may mean "A and / or B". Thus, "A / B" may mean "only A", "only B", or "both A and B". For example, "A, B, C" may mean "A, B, or C".

[0034] In the present disclosure, "at least one of A and B" may mean "only A", "only B", or "both A and B". In addition, in the present disclosure, the expression "at least one of A or B" or "at least one of A and / or B" may be interpreted as "at least one of A and B".

[0035] In addition, in the present disclosure, "at least one of A, B, and C" may mean "only A", "only B", "only C", or "any combination of A, B, and C". In addition, "at least one of A, B, or C" or "at least one of A, B and / or C" may mean "at least one of A, B, and C".

[0036] In addition, brackets used in the present disclosure may mean "for example". Specifically, when indicated as "control information (PDCCH)", this may mean proposing "PDCCH" as an example of "control information". In other words, the "control information" of the present disclosure is not limited to "PDCCH", and "PDDCH" may be proposed as an example of "control information". Specifically, when indicated as "control information (i.e., PDCCH)", this may also mean proposing "PDCCH" as an example of "control information".

[0037] The technical features respectively described in a pair of drawings in the present disclosure may be implemented separately or simultaneously.

[0038] The techniques described below can be used in various wireless communication systems such as code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. CDMA can be implemented using radio technologies such as Universal Terrestrial Radio Access (UTRA) or CDMA-2000. TDMA can be implemented using radio technologies such as Global System for Mobile Communications (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE). OFDMA can be implemented using radio technologies such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Evolved UTRA (E-UTRA), etc. IEEE 802.16m is an evolved version of IEEE 802.16e and provides backward compatibility for systems based on IEEE 802.16e. UTRA is part of Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE uses OFDMA in the downlink and SC-FDMA in the uplink. LTE-Advanced (LTE-A) is an evolution of LTE.

[0039] 5G NR is a subsequent technology of LTE-A corresponding to a new mobile communication system with high performance, low latency, high availability, etc. 5G NR can use all available spectrum resources including low frequency bands less than 1 GHz, intermediate frequency bands from 1 GHz to 10 GHz, and high frequency (millimeter wave) above 24 GHz.

[0040] For the sake of clarity, the following description will mainly focus on LTE-A or 5G NR. However, the technical features of the embodiments of the present disclosure will not be limited thereto.

[0041] Figure 2 The structure of the NR system according to an embodiment of the present disclosure is shown. Figure 2 The embodiments of the present disclosure may be combined with various embodiments of the present disclosure.

[0042] Reference Figure 2, the next generation radio access network (NG-RAN) may include a BS 20 that provides user plane and control plane protocol terminations to the UE 10. For example, the BS 20 may include a next generation Node B (gNB) and / or an evolved Node B (eNB). For example, the UE 10 may be fixed or mobile and may be referred to as other terms such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a mobile terminal (MT), a wireless device, etc. For example, the BS may be referred to as a fixed station that communicates with the UE 10 and may be referred to as other terms such as a base transceiver system (BTS), an access point (AP), etc.

[0043] Figure 2 The embodiment of the present invention illustrates a case where only gNB is included. The BSs 20 may be connected to each other via an Xn interface. The BSs 20 may be connected to each other via a fifth generation (5G) core network (5GC) and an NG interface. More specifically, the BSs 20 may be connected to an access and mobility management function (AMF) 30 via an NG-C interface, and may be connected to a user plane function (UPF) 30 via an NG-U interface.

[0044] The radio interface protocol layer between the UE and the network can be classified into the first layer (L1), the second layer (L2), and the third layer (L3) based on the lower three layers of the open system interconnection (OSI) model known in the communication system. Among them, the physical (PHY) layer belonging to the first layer provides an information transmission service using a physical channel, and the radio resource control (RRC) layer located at the third layer controls the radio resources between the UE and the network. To this end, the RRC layer exchanges RRC messages between the UE and the BS layer.

[0045] Figure 3 A radio protocol architecture according to an embodiment of the present disclosure is shown. Figure 3 The embodiments of can be combined with various embodiments of the present disclosure. Specifically, Figure 3 (a) in FIG. 1 shows a radio protocol stack for a user plane of Uu communication, and Figure 3 (b) in FIG. 5 shows the radio protocol stack of the control plane for Uu communication. Figure 3 (c) in FIG. 1 shows a radio protocol stack of a user plane for SL communication, and Figure 3 (d) in FIG. 5 shows the radio protocol stack of the control plane for SL communication.

[0046] Reference Figure 3, the physical layer provides information transfer services to the upper layer through the physical channel. The physical layer is connected to the medium access control (MAC) layer, which is the upper layer of the physical layer, through the transport channel. Data is transferred between the MAC layer and the physical layer through the transport channel. The transport channel is classified according to how the data is transmitted through the radio interface and what characteristics of the data it transmits.

[0047] Data is transmitted through a physical channel between different physical layers (ie, a PHY layer of a transmitter and a PHY layer of a receiver). The physical channel may be modulated using an Orthogonal Frequency Division Multiplexing (OFDM) scheme, and uses time and frequency as radio resources.

[0048] The MAC layer provides services to the Radio Link Control (RLC) layer via logical channels, and the RLC layer is a higher layer of the MAC layer. The MAC layer provides a function of mapping multiple logical channels to multiple transport channels. The MAC layer also provides a function of logical channel multiplexing by mapping multiple logical channels to a single transport channel. The MAC layer provides data transmission services through logical channels.

[0049] The RLC layer performs concatenation, segmentation, and reassembly of Radio Link Control Service Data Units (RLC SDUs). In order to ensure different Quality of Service (QoS) required by Radio Bearers (RBs), the RLC layer provides three types of operation modes, namely, Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM). AM RLC provides error correction through Automatic Repeat Request (ARQ).

[0050] The Radio Resource Control (RRC) layer is defined only in the control plane. The RRC layer is used to control logical channels, transport channels, and physical channels associated with the configuration, reconfiguration, and release of RBs. RBs are logical paths for data transmission between UEs and networks provided by the first layer (i.e., the physical layer or PHY layer) and the second layer (i.e., the MAC layer, the RLC layer, the packet data convergence protocol (PDCP) layer, and the service data adaptation protocol (SDAP) layer).

[0051] The functions of the Packet Data Convergence Protocol (PDCP) in the user plane include transmission, header compression and encryption of user data. The functions of the Packet Data Convergence Protocol (PDCP) in the control plane include transmission and encryption / integrity protection of control plane data.

[0052] The Service Data Adaptation Protocol (SDAP) layer is defined only in the user plane. The SDAP layer performs mapping between Quality of Service (QoS) flows and Data Radio Bearers (DRBs) and QoS Flow ID (QFI) marking in both DL and UL packets.

[0053] Configuration of RB means a process for specifying radio protocol layers and channel attributes to provide a specific service and for determining corresponding detailed parameters and operation methods. RBs can then be classified into two types, namely, signaling radio bearers (SRBs) and data radio bearers (DRBs). SRBs are used as a path for sending RRC messages in the control plane, and DRBs are used as a path for sending user data in the user plane.

[0054] When the RRC connection is established between the RRC layer of the UE and the RRC layer of the E-UTRAN, the UE is in the RRC connected (RRC_CONNECTED) state, otherwise the UE can be in the RRC idle (RRC_IDLE) state. In the case of NR, the RRC inactive (RRC_INACTIVE) state is additionally defined, and the UE in the RRC_INACTIVE state can maintain the connection with the core network and release its connection with the BS.

[0055] The downlink transmission channels for sending (or transmitting) data from the network to the UE include a broadcast channel (BCH) for sending system information and a downlink shared channel (SCH) for sending other user services or control messages. The services or control messages of downlink multicast or broadcast services can be sent via the downlink SCH or can be sent via a separate downlink multicast channel (MCH). In addition, the uplink transmission channels for sending (or transmitting) data from the UE to the network include a random access channel (RACH) for sending initial control messages and an uplink shared channel (SCH) for sending other user services or control messages.

[0056] Examples of logical channels belonging to a higher layer of a transport channel and mapped to a transport channel may include a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), a multicast traffic channel (MTCH), etc.

[0057] Figure 4 The structure of a radio frame of NR according to an embodiment of the present disclosure is shown. Figure 4 The embodiments of the present disclosure may be combined with various embodiments of the present disclosure.

[0058] Reference Figure 4 In NR, a radio frame can be used to perform uplink and downlink transmissions. The length of a radio frame is 10ms and can be defined as consisting of two half frames (HF). A half frame can include five 1ms subframes (SF). A subframe (SF) can be divided into one or more time slots, and the number of time slots within a subframe can be determined according to the subcarrier spacing (SCS). Each time slot can include 12 or 14 OFDM (A) symbols depending on the cyclic prefix (CP).

[0059] When a normal CP is used, each time slot may include 14 symbols. When an extended CP is used, each time slot may include 12 symbols. Herein, a symbol may include an OFDM symbol (or a CP-OFDM symbol) and a single carrier-FDMA (SC-FDMA) symbol (or a discrete Fourier transform spread OFDM (DFT-s-OFDM) symbol).

[0060] Table 1 below shows the number of time slots (N) of each symbol according to the SCS setting (μ) when the normal CP is used. slot symb ), the number of time slots per frame (N frame,μ slot ) and the number of time slots per subframe (N subframe,μ slot ).

[0061] [Table 1]

[0062] <![CDATA[SCS(15*2 μ )]]> <![CDATA[N slot symb ]]> <![CDATA[N frame,μ slot ]]> <![CDATA[N subframe,μ slot ]]> 15KHz(μ=0) 14 10 1 30KHz(μ=1) 14 20 2 60KHz(μ=2) 14 40 4 120KHz(μ=3) 14 80 8 240KHz(μ=4) 14 160 16

[0063] Table 2 shows an example of the number of symbols per slot, the number of slots per frame, and the number of slots per subframe according to the SCS in the case of using the extended CP.

[0064] [Table 2]

[0065] <![CDATA[SCS(15*2 μ )]]> <![CDATA[N slot symb ]]> <![CDATA[N frame,μ slot ]]> <![CDATA[N subframe,μ slot ]]> 60KHz(μ=2) 12 40 4

[0066] In the NR system, OFDM (A) parameter sets (e.g., SCS, CP length, etc.) between multiple cells integrated into one UE may be configured differently. Therefore, the (absolute time) duration (or interval) of a time resource (e.g., a subframe, a time slot, or a TTI) (collectively referred to as a time unit (TU) for simplicity) consisting of the same number of symbols may be configured differently in the integrated cells.

[0067] In NR, multiple parameter sets or SCSs can be supported to support various 5G services. For example, with an SCS of 15kHz, a wide range of traditional cellular bands can be supported, and with an SCS of 30kHz / 60kHz, dense cities, lower latency, and wider carrier bandwidths can be supported. With an SCS of 60kHz or higher, bandwidths greater than 24.25GHz can be used to overcome phase noise.

[0068] The NR frequency band may be defined as two different types of frequency ranges. The two different types of frequency ranges may be FR1 and FR2. The values ​​of the frequency ranges may be changed (or varied), for example, the two different types of frequency ranges may be as shown in Table 3 below. Among the frequency ranges used in the NR system, FR1 may mean "a range below 6 GHz", and FR2 may mean "a range above 6 GHz", and may also be referred to as millimeter wave (mmW).

[0069] [Table 3]

[0070] Frequency range specification Corresponding frequency range Subcarrier Spacing (SCS) FR1 450MHz–6000MHz 15, 30, 60kHz FR2 24250MHz–52600MHz 60, 120, 240kHz

[0071] As described above, the value of the frequency range in the NR system may be changed (or varied). For example, as shown in Table 4 below, FR1 may include a bandwidth in the range of 410 MHz to 7125 MHz. More specifically, FR1 may include frequency bands of 6 GHz (or 5850, 5900, 5925 MHz, etc.) and higher. For example, the frequency bands of 6 GHz (or 5850, 5900, 5925 MHz, etc.) and higher included in FR1 may include unlicensed frequency bands. Unlicensed frequency bands may be used for various purposes, for example, unlicensed frequency bands are used for vehicle-specific communications (e.g., autonomous driving).

[0072] [Table 4]

[0073] Frequency range specification Corresponding frequency range Subcarrier Spacing (SCS) FR1 410MHz–7125MHz 15, 30, 60kHz FR2 24250MHz–52600MHz 60, 120, 240kHz

[0074] Figure 5 The structure of the time slot of the NR frame according to an embodiment of the present disclosure is shown. Figure 5 The embodiments of the present disclosure may be combined with various embodiments of the present disclosure.

[0075] Reference Figure 5 , a time slot includes multiple symbols in the time domain. For example, in the case of normal CP, one time slot may include 14 symbols. For example, in the case of extended CP, one time slot may include 12 symbols. Alternatively, in the case of normal CP, one time slot may include 7 symbols. However, in the case of extended CP, one time slot may include 6 symbols.

[0076] A carrier includes multiple subcarriers in the frequency domain. A resource block (RB) can be defined as multiple consecutive subcarriers in the frequency domain (e.g., 12 subcarriers). A bandwidth part (BWP) can be defined as multiple consecutive (physical) resource blocks ((P)RBs) in the frequency domain, and a BWP can correspond to a parameter set (e.g., SCS, CP length, etc.). A carrier can include up to N BWPs (e.g., 5 BWPs). Data communication can be performed via an activated BWP. Each element can be referred to as a resource element (RE) in a resource grid, and a complex symbol can be mapped to each element.

[0077] Hereinafter, the bandwidth part (BWP) and the carrier will be described in detail.

[0078] A BWP may be a contiguous set of physical resource blocks (PRBs) within a given parameter set. A PRB may be selected from a contiguous set of common resource blocks (CRBs) for a given parameter set on a given carrier.

[0079] For example, the BWP may be at least any one of an active BWP, an initial BWP, and / or a default BWP. For example, the UE may not monitor the downlink radio link quality in a DL BWP other than an activated DL BWP on a primary cell (PCell). For example, the UE may not receive a PDCCH, a physical downlink shared channel (PDSCH), or a channel state information-reference signal (CSI-RS) (excluding RRM) other than an activated DL BWP. For example, the UE may not trigger a channel state information (CSI) report for an unactivated DL BWP. For example, the UE may not send a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) other than an activated UL BWP. For example, in the case of a downlink, the initial BWP may be given as a set of contiguous RBs for a remaining minimum system information (RMSI) control resource set (CORESET) (configured by a physical broadcast channel (PBCH)). For example, in the case of an uplink, the initial BWP may be given by a system information block (SIB) for a random access procedure. For example, a default BWP may be configured by a higher layer. For example, the initial value of the default BWP may be the initial DL BWP.To save energy, if the UE cannot detect downlink control information (DCI) during a specified period, the UE may switch the active BWP of the UE to the default BWP.

[0080] In addition, a BWP can be defined for SL. The same SL BWP can be used in transmission and reception. For example, a transmitting UE can send a SL channel or a SL signal on a specific BWP, and a receiving UE can receive a SL channel or a SL signal on a specific BWP. In a licensed carrier, the SL BWP can be defined separately from the Uu BWP, and the SL BWP can have configuration signaling separate from the Uu BWP. For example, the UE can receive a configuration for the SL BWP from the BS / network. For example, the UE can receive a configuration for the Uu BWP from the BS / network. SLBWP is (pre-)configured in the carrier for out-of-coverage NR V2X UEs and RRC_IDLE UEs. For UEs in RRC_CONNECTED mode, at least one SL BWP can be activated in the carrier.

[0081] Figure 6 An example of a BWP according to an embodiment of the present disclosure is shown. Figure 6 The embodiments of can be combined with various embodiments of the present disclosure. Figure 6 In an implementation manner, the number of BWPs is 3.

[0082] Reference Figure 6 , a common resource block (CRB) may be a carrier resource block numbered from one end of a carrier frequency band to the other end thereof. Additionally, a PRB may be a resource block numbered within each BWP. Point A may indicate a common reference point of a resource block grid.

[0083] It can be obtained by point A, the offset N relative to point A start BWP and bandwidth N size BWP To configure the BWP. For example, point A may be an external reference point of the PRBs of a carrier, and subcarrier 0 of all parameter sets (e.g., all parameter sets supported by the network on the corresponding carrier) are aligned in point A. For example, the offset may be the PRB distance between the lowest subcarrier within a given parameter set and point A. For example, the bandwidth may be the number of PRBs within a given parameter set.

[0084] Hereinafter, V2X or SL communication will be described.

[0085] The side link synchronization signal (SLSS) may include a primary side link synchronization signal (PSSS) and a secondary side link synchronization signal (SSSS) as SL specific sequences. PSSS may be referred to as a side link primary synchronization signal (S-PSS), and SSSS may be referred to as a side link secondary synchronization signal (S-SSS). For example, an M sequence of length 127 may be used for S-PSS, and a Gold sequence of length 127 may be used for S-SSS. For example, the UE may use the S-PSS for initial signal detection and synchronization acquisition. For example, the UE may use the S-PSS and S-SSS for acquisition of detailed synchronization and for detection of a synchronization signal ID.

[0086] The physical sidelink broadcast channel (PSBCH) can be a (broadcast) channel for sending default (system) information, which the UE must first know before SL signal transmission / reception. For example, the default information can be information related to SLSS, duplex mode (DM), time division duplex (TDD) uplink / downlink (UL / DL) configuration, information related to resource pool, type of application related to SLSS, subframe offset, broadcast information, etc. For example, in order to evaluate PSBCH performance, in NR V2X, the payload size of PSBCH can be 56 bits, including a 24-bit cyclic redundancy check (CRC).

[0087] S-PSS, S-SSS, and PSBCH may be included in a block format that supports periodic transmission (e.g., SL synchronization signal (SS) / PSBCH block, hereinafter, sublink synchronization signal block (S-SSB)). The S-SSB may have the same parameter set (i.e., SCS and CP length) as the physical sublink control channel (PSCCH) / physical sublink shared channel (PSSCH) in the carrier, and the transmission bandwidth may exist within a (pre) configured sublink (SL) BWP. For example, the S-SSB may have a bandwidth of 11 resource blocks (SBs). For example, the PSBCH may exist across 11 RBs. In addition, the frequency position of the S-SSB may be (pre) configured. Therefore, the UE does not have to perform hypothesis detection at the frequency to discover the S-SSB in the carrier.

[0088] Figure 7 A UE performing V2X or SL communication according to an embodiment of the present disclosure is shown. Figure 7 The embodiments of the present disclosure may be combined with various embodiments of the present disclosure.

[0089] Reference Figure 7In V2X or SL communication, the term "UE" may generally refer to a user's UE. However, if a network device such as a BS transmits / receives signals according to a communication scheme between UEs, the BS may also be regarded as a type of UE. For example, UE 1 may be a first device 100, and UE 2 may be a second device 200.

[0090] For example, UE 1 may select a resource unit corresponding to a specific resource in a resource pool meaning a set of resource series. In addition, UE 1 may send an SL signal by using the resource unit. For example, a resource pool in which UE 1 can send a signal may be configured to UE 2 as a receiving UE, and a signal of UE 1 may be detected in the resource pool.

[0091] Herein, if UE 1 is within the connection range of the BS, the BS may inform the resource pool to UE 1. Otherwise, if UE 1 is out of the connection range of the BS, another UE may inform UE 1 of the resource pool, or UE 1 may use a pre-configured resource pool.

[0092] Generally, a resource pool may be configured in units of multiple resources, and each UE may select one or more units of resources to use in its SL signaling.

[0093] Hereinafter, resource allocation in SL will be described.

[0094] Figure 8 A process of performing V2X or SL communication by a UE based on a transmission mode according to an embodiment of the present disclosure is shown. Figure 8 The embodiments of the present disclosure may be combined with various embodiments of the present disclosure. In various embodiments of the present disclosure, the transmission mode may be referred to as a mode or a resource allocation mode. Hereinafter, for ease of explanation, in LTE, the transmission mode may be referred to as an LTE transmission mode. In NR, the transmission mode may be referred to as an NR resource allocation mode.

[0095] For example, Figure 8 (a) in FIG. 1 shows UE operations related to LTE transmission mode 1 or LTE transmission mode 3. Alternatively, for example, Figure 8 (a) in FIG. 1 shows UE operations related to NR resource allocation mode 1. For example, LTE transmission mode 1 may be applied to conventional SL communication, and LTE transmission mode 3 may be applied to V2X communication.

[0096] For example, Figure 8 (b) in FIG. 4 shows UE operations related to LTE transmission mode 2 or LTE transmission mode 4. Alternatively, for example, Figure 8 (b) in FIG. 1 shows UE operation related to NR resource allocation mode 2.

[0097] Reference Figure 8 (a) in which, in LTE transmission mode 1, LTE transmission mode 3, or NR resource allocation mode 1, the BS may schedule SL resources to be used by the UE for SL transmission. For example, the BS may perform resource scheduling for UE 1 through PDCCH (e.g., downlink control information (DCI)) or RRC signaling (e.g., configuring grant type 1 or configuring grant type 2), and UE 1 may perform V2X or SL communication for UE 2 according to the resource scheduling. For example, UE 1 may send sidelink control information (SCI) to UE 2 through a physical sidelink control channel (PSCCH), and thereafter send data based on the SCI to UE 2 through a physical sidelink shared channel (PSSCH).

[0098] For example, in NR resource allocation mode 1, one or more SL transmission resources of a transport block (TB) from the BS can be provided or allocated to the UE through dynamic grant. For example, the BS can provide resources for PSCCH and / or PSSCH transmission to the UE based on the dynamic grant. For example, the transmitting UE can report the SL hybrid automatic repeat request (HARQ) feedback received from the receiving UE to the BS. In this case, based on the indication within the PDCCH for the BS to allocate resources for SL transmission, the PUCCH resources and timing for reporting the SL HARQ feedback to the BS can be determined.

[0099] For example, the DCI may include information related to the time slot offset between the DCI reception and the first / initial SL transmission scheduled by the DCI.For example, the minimum gap between the DCI for scheduling SL transmission resources and the first scheduled SL transmission resources may not be less than the processing time of the corresponding UE.

[0100] For example, in NR resource allocation mode 1, for multiple SL transmissions, a resource set from the BS may be periodically provided or allocated to the UE via a configuration grant. For example, the configuration grant may include a configuration grant type 1 or a configuration grant type 2. For example, the UE may determine a TB to be transmitted at each opportunity indicated by a given configuration grant.

[0101] For example, the BS may allocate SL resources to the UE on the same carrier, or may allocate SL resources to the UE on different carriers.

[0102] Reference Figure 8In (b), in LTE transmission mode 2, LTE transmission mode 4 or NR resource allocation mode 2, the UE can determine the SL transmission resources within the SL resources configured by the BS / network or the pre-configured SL resources. For example, the configured SL resources or the pre-configured SL resources can be a resource pool. For example, the UE can autonomously select or schedule resources for SL transmission. For example, the UE can perform SL communication by autonomously selecting resources in the configured resource pool. For example, the UE can autonomously select resources within the selection window by performing sensing and resource (re)selection processes. For example, sensing can be performed in units of subchannels. In addition, UE 1 that has autonomously selected resources in the resource pool can send SCI to UE 2 via PSCCH, and thereafter data based on the SCI can be sent to UE 2 via PSSCH.

[0103] Fig. 9 Three types of broadcasts are shown in accordance with embodiments of the present disclosure. Fig. 9 The embodiments of can be combined with various embodiments of the present disclosure. Specifically, Fig. 9 (a) shows broadcast type SL communication, Fig. 9 (b) in FIG. 4 shows unicast type SL communication, and Fig. 9 (c) shows multicast SL communication. In the case of unicast SL communication, the UE can perform one-to-one communication with another UE. In the case of multicast SL transmission, the UE can perform SL communication with one or more UEs in the group to which the UE belongs. In various embodiments of the present disclosure, SL groupcast communication can be replaced by SL multicast communication, SL one-to-many communication, etc.

[0104] Hereinafter, a hybrid automatic repeat request (HARQ) process will be described.

[0105] In the case of SL unicast and SL multicast, HARQ feedback and HARQ combining in the physical layer can be supported. For example, in the case where the receiving UE operates in resource allocation mode 1 or 2, the receiving UE can receive PSSCH from the transmitting UE, and the receiving UE can send HARQ feedback corresponding to PSSCH to the transmitting UE through the physical sidelink feedback channel (PSFCH) using the sidelink feedback control information (SFCI) format.

[0106] For example, SL HARQ feedback may be enabled for unicast. In this case, in a non-code block group (non-CBG), the receiving UE may decode the PSCCH targeted to the receiving UE, and when the receiving UE successfully decodes the transport block associated with the PSCCH, the receiving UE may generate a HARQ-ACK. Thereafter, the receiving UE may send the HARQ-ACK to the transmitting UE. Conversely, after the receiving UE decodes the PSCCH targeted to the receiving UE, if the receiving UE fails to successfully decode the transport block associated with the PSCCH, the receiving UE may generate a HARQ-NACK, and the receiving UE may send the HARQ-NACK to the transmitting UE.

[0107] For example, SL HARQ feedback may be enabled for multicast.For example, during non-CBG, two different types of HARQ feedback options may be supported for multicast.

[0108] (1) Multicast Option 1: After decoding the PSCCH targeted at the receiving UE, if the receiving UE fails to decode the transport block associated with the PSCCH, the receiving UE may send a HARQ-NACK to the transmitting UE via the PSFCH. Conversely, when the receiving UE decodes the PSCCH targeted at the receiving UE and when the receiving UE successfully decodes the transport block associated with the PSCCH, the receiving UE does not send a HARQ-ACK to the transmitting UE.

[0109] (2) Multicast Option 2: After decoding the PSCCH targeted at the receiving UE, if the receiving UE fails to decode the transport block associated with the PSCCH, the receiving UE may send a HARQ-NACK to the transmitting UE via the PSFCH. Also, when the receiving UE decodes the PSCCH targeted at the receiving UE and when the receiving UE successfully decodes the transport block associated with the PSCCH, the receiving UE may send a HARQ-ACK to the transmitting UE via the PSFCH.

[0110] For example, if multicast option 1 is used in SL HARQ feedback, all UEs performing multicast communication can share PSFCH resources. For example, UEs belonging to the same group can send HARQ feedback by using the same PSFCH resources.

[0111] For example, if multicast option 2 is used in SL HARQ feedback, each UE performing multicast communication may use different PSFCH resources for HARQ feedback transmission. For example, UEs belonging to the same group may send HARQ feedback by using different PSFCH resources.

[0112] For example, when SL HARQ feedback is enabled for groupcast, the receiving UE may determine whether to send HARQ feedback to the transmitting UE based on transmit-receive (TX-RX) distance and / or reference signal received power (RSRP).

[0113] For example, in multicast option 1, in the case of HARQ feedback based on TX-RX distance, if the TX-RX distance is less than or equal to the communication range requirement, the receiving UE may send HARQ feedback in response to the PSSCH to the transmitting UE. Otherwise, if the TX-RX distance is greater than the communication range requirement, the receiving UE may not send HARQ feedback in response to the PSSCH to the transmitting UE. For example, the transmitting UE may inform the receiving UE of the location of the transmitting UE via the SCI associated with the PSSCH. For example, the SCI associated with the PSSCH may be a second SCI. For example, the receiving UE may estimate or obtain the TX-RX distance based on the location of the receiving UE and the location of the transmitting UE. For example, the receiving UE may decode the SCI associated with the PSSCH, and therefore may know the communication range requirement for the PSSCH.

[0114] For example, in the case of resource allocation mode 1, the time (offset) between PSFCH and PSSCH can be configured or pre-configured. In the case of unicast and multicast, if retransmission is required on the SL, it can be indicated to the BS by the UE within the coverage area using PUCCH. The sending UE can send an indication to the serving BS of the sending UE in the form of a scheduling request (SR) / buffer status report (BSR) instead of a HARQ ACK / NACK. In addition, even if the BS does not receive the indication, the BS can schedule SL retransmission resources for the UE. For example, in the case of resource allocation mode 2, the time (offset) between PSFCH and PSSCH can be configured or pre-configured.

[0115] For example, from the perspective of UE transmission in a carrier, for a PSFCH format for SL in a time slot, TDM between PSCCH / PSSCH and PSFCH may be allowed. For example, a sequence-based PSFCH format with a single symbol may be supported. Herein, the single symbol may not be the AGC duration. For example, a sequence-based PSFCH format may be applied to unicast and multicast.

[0116] For example, in a time slot associated with a resource pool, the PSFCH resource may be periodically configured for N time slot durations, or may be preconfigured. For example, N may be configured as one or more values ​​greater than or equal to 1. For example, N may be 1, 2, or 4. For example, HARQ feedback for transmissions in a specific resource pool may be sent via PSFCH only on the specific resource pool.

[0117] For example, if a transmitting UE sends a PSSCH to a receiving UE across time slot #x to time slot #n, the receiving UE may send HARQ feedback in response to the PSSCH to the transmitting UE in time slot #(N+A). For example, time slot #(N+A) may include PSFCH resources. Herein, for example, A may be a minimum integer greater than or equal to K. For example, K may be the number of logical time slots. In this case, K may be the number of time slots in a resource pool. Alternatively, for example, K may be the number of physical time slots. In this case, K may be the number of time slots inside or outside the resource pool.

[0118] For example, if the receiving UE sends HARQ feedback on the PSFCH resource in response to a PSSCH sent by the transmitting UE to the receiving UE, the receiving UE may determine the frequency domain and / or code domain of the PSFCH resource based on an implicit mechanism in the configured resource pool. For example, the receiving UE may determine the frequency domain and / or code domain of the PSFCH resource based on at least one of a timeslot index associated with the PSCCH / PSSCH / PSFCH, a subchannel associated with the PSCCH / PSSCH, or an identifier for each receiving UE in a group for identifying HARQ feedback based on multicast option 2. Additionally / alternatively, for example, the receiving UE 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.

[0119] For example, if HARQ feedback transmission via the UE's PSFCH overlaps with HARQ feedback reception via the PSFCH, the UE may select either HARQ feedback transmission via the PSFCH or HARQ feedback reception via the PSFCH based on a priority rule. For example, the priority rule may be based at least on a priority indication of the associated PSCCH / PSSCH.

[0120] For example, if HARQ feedback transmissions by UEs via PSFCH overlap for multiple UEs, the UEs may select a specific HARQ feedback transmission based on a priority rule. For example, the priority rule may be based on the lowest priority indication of the related PSCCH / PSSCH.

[0121] Hereinafter, sublink control information (SCI) will be described.

[0122] The control information that the BS sends to the UE via the PDCCH may be referred to as downlink control information (DCI), and the control information that the UE sends to another UE via the PSCCH may be referred to as SCI. For example, the UE may know the starting symbol of the PSCCH and / or the number of symbols of the PSCCH in advance before decoding the PSCCH. For example, the SCI may include SL scheduling information. For example, the UE may send at least one SCI to another UE to schedule the PSSCH. For example, one or more SCI formats may be defined.

[0123] For example, a transmitting UE may send an SCI on a PSCCH to a receiving UE. A receiving UE may decode an SCI to receive a PSSCH from the transmitting UE.

[0124] For example, a transmitting UE may send two consecutive SCIs (e.g., level 2 SCIs) to a receiving UE on a PSCCH and / or a PSSCH. The receiving UE may decode two consecutive SCIs (e.g., level 2 SCIs) to receive a PSSCH from the transmitting UE. For example, if the SCI configuration field is divided into two groups in consideration of a (relatively) high SCI payload size, the SCI including the first SCI configuration field group may be referred to as the first SCI or the first SCI, and the SCI including the second SCI configuration field group may be referred to as the second SCI or the second SCI. For example, the transmitting UE may send the first SCI to the receiving UE via the PSCCH. For example, the transmitting UE may send the second SCI to the receiving UE on the PSCCH and / or the PSSCH. For example, the second SCI may be sent to the receiving UE via a (separate) PSCCH, or may be sent in a piggyback manner with the data via the PSSCH. For example, two consecutive SCIs may also be applied to different transmissions (e.g., unicast, broadcast, or multicast).

[0125] For example, the transmitting UE may send all or part of the information described below to the receiving UE via the SCI. Herein, for example, the transmitting UE may send all or part of the information described below to the receiving UE via the first SCI and / or the second SCI.

[0126] -PSSCH and / or PSCCH related resource allocation information, such as the number / location of time / frequency resources, resource reservation information (e.g., time period), and / or

[0127] -SL CSI report request indicator or SL (L1) RSRP (and / or SL (L1) RSRQ and / or SL (L1) RSSI) report request indicator, and / or

[0128] - SL CSI transmission indicator (on PSSCH) (or SL (L1) RSRP (and / or SL (L1) RSRQ and / or SL (L1) RSSI) information transmission indicator), and / or

[0129] - Modulation and Coding Scheme (MCS) information, and / or

[0130] - transmit power information, and / or

[0131] - L1 destination ID information and / or L1 source ID information, and / or

[0132] -SL HARQ process ID information, and / or

[0133] - New Data Indicator (NDI) information, and / or

[0134] - Redundancy Version (RV) information, and / or

[0135] - QoS information (related to the transmission service / packet), such as priority information, and / or

[0136] -SL CSI-RS transmission indicator or information about the number of SL CSI-RS antenna ports (to be transmitted)

[0137] - The location information of the sending UE or the location (or distance area) information of the target receiving UE (for which SL HARQ feedback is requested), and / or

[0138] - Reference signals (e.g., DMRS, etc.) related to channel estimation and / or decoding of data to be sent via PSSCH, for example, information related to the pattern of (time-frequency) mapping resources of DMRS, rank information, antenna port index information.

[0139] For example, the first SCI may include information related to channel sensing. For example, the receiving UE may decode the second SCI by using the PSSCH DMRS. The polarization code used in the PDCCH may be applied to the second SCI. For example, in a resource pool, the payload size of the first SCI may be equal for unicast, multicast, and broadcast. After decoding the first SCI, the receiving UE does not have to perform blind decoding on the second SCI. For example, the first SCI may include scheduling information for the second SCI.

[0140] In addition, in various embodiments of the present disclosure, since the transmitting UE can send at least one of the SCI, the first SCI and / or the second SCI to the receiving UE through the PSCCH, the PSCCH can be replaced / replaced by at least one of the SCI, the first SCI and / or the second SCI. Additionally / alternatively, for example, the SCI can be replaced / replaced by at least one of the PSCCH, the first SCI or the second SCI. Additionally / alternatively, for example, since the transmitting UE can send the second SCI to the receiving UE through the PSSCH, the PSSCH can be replaced / replaced by the second SCI.

[0141] In the present disclosure, the term "configuration / configured or defined / defined" may be interpreted as (pre)configuration from a base station or a network (through predefined signaling (e.g., SIB, MAC signaling, RRC signaling)). For example, "A may be configured" may include "the base station or the network (pre) configures / defines or informs A to the UE". Alternatively, the term "configuration / configured or defined / defined" may be interpreted as pre-configured or pre-defined in the system. For example, "A may be configured" may include "A is pre-configured / defined in the system".

[0142] In addition, in the next generation system, the UE may allow SL channels / signals and UL channels / signals in a single carrier or cell. For example, if the UL carrier is configured to be large, the UE may often not be able to utilize all resources depending on the actual traffic. In this case, if SL and UL are allowed to be sent simultaneously even on a single carrier, the resource waste problem can be alleviated. In addition, without considering the above situation, assuming that SL and UL belong to different carriers or service cells, the UE can perform a power control method between SL and UL. Therefore, it may be necessary to newly add / define a power control method for SL and / or UL channels / signals in the next generation system.

[0143] In addition, it may be easy to implement that the UE performs power control in serving cell units or in carrier units. In this case, it is necessary to newly define a power control method for a carrier where both SL and UL channels exist.

[0144] In addition, if the total transmission power of the UE exceeds the maximum transmission power, the UE can determine the channel in which the power will be adjusted based on the priority value of the SL channel in the power distribution process between the UL and the SL.

[0145] For example, the UE may select a carrier in which the transmit power will be reduced among a carrier (group) through which only a UL channel / signal is transmitted and a carrier through which both a UL and a SL channel / signal are transmitted based on priority. For example, if the UE determines that the SL channel has a higher priority than the UL on other carriers that overlap in time, the UE may maintain the transmit power of the SL and / or UL of the carrier through which the SL channel is transmitted, and the UE may reduce the transmit power of the UL transmitted in other carriers. For example, if the UE determines that the SL channel has a lower priority than the UL on other carriers that overlap in time, the UE may reduce the transmit power of the SL and / or UL of the carrier through which the SL channel is transmitted, and the UE may maintain the transmit power of the UL transmitted in other carriers.

[0146] For example, the UE may ignore the priority of the SL channel for a carrier through which SL and UL are simultaneously transmitted, and the UE may allocate power to each carrier by assuming that all carriers are UL carriers. Thereafter, the UE may redistribute the power allocated for the carrier through which SL and UL are simultaneously transmitted to the SL channel and the UL channel again. For example, in the case of a carrier through which SL and UL are simultaneously transmitted, the UE may first allocate the power allocated for the carrier to the SL channel, and then allocate the remaining power to the UL channel. For example, in the case of a carrier through which SL and UL are simultaneously transmitted, the UE may first allocate the power allocated for the carrier to the UL channel, and then allocate the remaining power to the SL channel. For example, in the case of a carrier through which SL and UL are simultaneously transmitted, the UE may first allocate the power allocated for the carrier to the UL channel, and then allocate the remaining power to the SL channel. For example, in the case of a carrier through which SL and UL are simultaneously transmitted, the UE may first allocate the power allocated for the carrier to the UL channel, and then allocate the remaining power to the channels of the remaining links after first allocating the power allocated for the carrier to the channels with higher priority according to the priority of the SL channel.

[0147] For example, the UE may determine the priority between SL and UL for a carrier through which SL and UL are simultaneously transmitted. In this case, if the UE determines that the priority of the SL channel is high, the UE may determine the priority between the SL carrier and the UL carrier by assuming that the carrier is a SL carrier. Thereafter, after determining whether to reduce or maintain the transmission power of the SL carrier, the UE may perform power allocation on the SL channel and the UL channel in the SL carrier. For example, if the UE determines that the priority of the SL channel is low for a carrier through which SL and UL are simultaneously transmitted, the UE may allocate power between UL carriers by assuming that the carrier is a UL carrier. Thereafter, the UE may perform power allocation on the SL channel and the UL channel in the carrier.

[0148] For example, for a carrier through which SL and UL are simultaneously transmitted, if the UL channel has a higher priority than the UL channels of other carriers, the UE may maintain the transmission power of the carrier through which SL and UL are simultaneously transmitted, and the UE may reduce the UL transmission power of other carriers. For example, in the above case, the UE may allocate the transmission power of the carrier through which SL and UL are simultaneously transmitted to the UL channel preferentially, and the UE may allocate the remaining power to the SL channel.

[0149] In addition, in a carrier through which SL and UL are simultaneously transmitted, the UE may apply TA in the case of UL transmission, and may not apply TA in the case of SL transmission. Therefore, the difference between the time slot boundary and / or symbol boundary of the UL and the time slot boundary and / or symbol boundary of the SL may be greater than or equal to a certain level. In the above case, the implementation method of the UE may be complicated. For example, it may be allowed to simultaneously transmit SL and UL in a single carrier only when the difference between the time slot boundary and / or symbol boundary of the UL and the time slot boundary and / or symbol boundary of the SL is less than or equal to a certain level (for example, 32 microseconds or other fixed value or (pre) configuration value). For example, in order to align the difference between the time slot boundary and / or symbol boundary of the UL and the time slot boundary and / or symbol boundary of the SL to a certain level or lower, when SL and UL are simultaneously transmitted in a single carrier, the UE may move the symbol boundary of the SL, and the UE may send the offset value of the movement to other UEs performing SL communication. For example, in order to align the difference between the slot boundary and / or symbol boundary of the UL and the slot boundary and / or symbol boundary of the SL to a certain level or lower, when the SL and the UL are simultaneously transmitted in a single carrier (i.e., if the difference between the slot boundary and / or symbol boundary of the UL and the SL is greater than (or equal to) a certain level), the UE may move the slot boundary and / or symbol boundary of the SL, and the UE may transmit the S-SSB based on the slot boundary and / or symbol boundary moved relative to the slot boundary and / or symbol boundary determined based on the synchronization reference source. For example, if the difference between the slot boundary and / or symbol boundary of the UL and the slot boundary and / or symbol boundary of the SL is greater than or equal to a certain level, the UE may select one of the UL channel or the SL channel and transmit it. In this case, for example, the UE may transmit a channel with a high priority. For example, the UE may indicate / transmit information about whether to shift the slot boundary and / or symbol boundary of the SL from a reference point determined based on the synchronization source and / or information about the shift value through the PSCCH and / or PSSCH and / or PSBCH. For example, information about whether to shift the slot boundary and / or symbol boundary of the SL from a reference point determined based on a synchronization source and / or information about the shift value may be indicated / sent to the UE by DCI or (pre)configured parameters.

[0150] In addition, in the case of simultaneously transmitting SL and UL in a single carrier, there may be a situation where the SL channel and the UL channel overlap only partially in time, rather than completely overlapping. In addition, in the case where the UE transmits in a single carrier, depending on situations such as changes in resource block (RB) configuration, changes in the transmission power of the carrier, or changes in the power spectrum density (PSD), a transient period may occur in the period at the transmitting UE, and therefore, signal distortion may partially occur. For example, if the transmission of the SL channel overlaps in time to be included in the UL channel in the same carrier, the UE can perform simultaneous transmission of SL and UL in the carrier. For example, if DMRS exists before and after the transient period in the SL channel, respectively, the UE can perform simultaneous transmission of SL and UL in the same carrier. This is because, due to the phase change before and after the transient period, DMRS may be required respectively, and if DMRS is not provided respectively, channel estimation cannot be accurately performed. For example, in the above case, if simultaneous transmission of SL and UL cannot be performed in the same carrier, the UE can cancel the transmission of all or (overlapping) parts of SL or UL. For example, when selecting between SL and UL, the UE may select a transmission with a lower priority and cancel the transmission. For example, for a channel whose transmission in some symbols is canceled, if DRMS ​​is included in some symbols, the UE may cancel the transmission of the entire channel. For example, if there is no DMRS in the remaining symbols of the channel whose transmission in some symbols is canceled, the UE may cancel the transmission of the entire channel. For example, a channel whose first transmission is earlier in time may be a channel with a higher priority between the SL channel and the UL channel.

[0151] In the implementation transmission of the present disclosure, if the priority value of the SL channel (selected according to the priority index of the UL channel) is less than the (pre) configured threshold, the SL channel may have a higher priority than the UL channel. On the other hand, if the priority value of the SL channel (selected according to the priority index of the UL channel) is greater than or equal to the (pre) configured threshold, the UL channel may have a higher priority than the SL channel. Herein, if the threshold of the UL channel corresponding to the priority index 1 is not configured, the UL channel may have a higher priority than the SL channel. For example, a UL channel of a certain type (e.g., a UL channel associated with random access) may always have a higher priority than the SL channel. In an embodiment of the present disclosure, in the process of determining the priority between multiple SL channels and multiple UL channels, if at least one SL channel has a higher priority than all identifiable overlapping UL channels considering the processing time, the priority of the SL channel may be high. On the other hand, if one UL channel has a higher priority than all identifiable overlapping SL channels considering the processing time, the priority of the UL channel may be high.

[0152] In addition, the UE may perform UL transmission to the base station, and the priority index of each UL channel / signal may correspond to 0 or 1. Depending on the value of the priority index, the UL transmission may correspond to an enhanced mobile broadband (eMBB) service (if the priority index is 0), and the UL transmission may correspond to an ultra-reliable low-latency communication (URLLC) service (if the priority index is 1). In addition, the UE may perform SL transmission and / or reception to another UE, and according to the SL operation mode, the UE may report SL HARQ-ACK information to the base station by using PUCCH or PUSCH. In addition, multiple UL channels / signals of the UE may overlap in time. In this case, the UE may determine a set of PUCCHs that do not overlap in time by resolving the overlap of the PUCCHs corresponding to the smaller priority index (by discarding or multiplexing, etc.). In the present disclosure, for ease of description, channels that are not discarded in the process of resolving overlap or channels that are not multiplexed to other channels may be referred to as non-overlapping channels. If the PUSCH of the same priority index completely or partially overlaps with the set of non-overlapping PUCCHs, the UE may determine to send all or part of the UCI corresponding to the set of non-overlapping PUCCHs through the PUSCH. In addition, thereafter, the UE may apply the overlapping solution between the overlapping PUCCHs and / or PUSCHs to the PUCCHs and / or PUSCHs of the larger priority index. In addition, thereafter, the UE may determine whether it overlaps with the set of non-overlapping PUCCHs and / or PUSCHs determined for each priority index. In this case, the PUCCH and / or PUSCH of the larger priority index may have a higher priority than the PUCCH and / or PUSCH of the smaller priority index. For example, in the above situation, the UE may cancel the transmission of the PUCCH and / or PUSCH of the smaller priority index that overlaps with the PUCCH and / or PUSCH of the larger priority index. For example, the above situation may be determined differently according to the processing time. In an embodiment of the present disclosure, for ease of description, the PUCCH and PUSCH of the smaller priority index (e.g., value 0) may be referred to as eMBB PUCCH and eMBB PUSCH. PUCCH and PUSCH with a larger priority index (e.g., value 1) may be referred to as URLLC PUCCH and URLLC PUSCH.

[0153] In addition, when the PUCCH for SL HARQ-ACK reporting (hereinafter, SL PUCCH) overlaps with the eMBB PUCCH and / or eMBB PUSCH and / or URLLC PUCCH and / or URLLC PUSCH in time, it is necessary to define the operation of the UE. For example, if at least one of the SL PUCCH, eMBB PUCCH, eMBB PUSCH, URLLC PUCCH and / or URLLC PUSCH partially or completely overlaps in the time domain, the UE needs to determine the channel to be transmitted among these channels. Based on various embodiments of the present disclosure, a method for the UE to prioritize channels and a device supporting the method are proposed if at least one of the SL PUCCH, eMBB PUCCH, eMBB PUSCH, URLLC PUCCH and / or URLLCPUSCH partially or completely overlaps in the time domain.

[0154] For example, the UE may perform a process for resolving the problem of temporal overlap of the eMBB PUCCH and / or eMBB PUSCH and / or URLLC PUCCH and / or URLLC PUSCH. For example, the UE may determine whether the SL PUCCH overlaps in time with the non-overlapping eMBB PUCCH and / or non-overlapping eMBB PUSCH and / or non-overlapping URLLCPUCCH and / or non-overlapping URLLC PUSCH determined after performing the process for resolving the overlap. In addition, if the SL PUCCH overlaps with the URLLC PUSCH, the UE may cancel the transmission of the SL PUCCH, and the SL HARQ-ACK report may not be included in the URLLC PUSCH. For example, in the case of non-overlapping between Uu channels, the UE may first check whether the SL PUCCH overlaps with the eMBB PUSCH, and the UE may then check whether the SL PUCCH overlaps with the URLLC PUSCH. Accordingly, if the SL PUCCH overlaps with the eMBB PUSCH and the URLLC PUSCH, and if the PUSCHs do not overlap with each other, the UE may first include the SL HARQ-ACK in the eMBBPUSCH, and then cancel the transmission of the SL PUCCH. Therefore, unnecessary discarding of the SL HARQ-ACK information may be prevented.

[0155] For example, for a non-overlapping set, if the SL PUCCH overlaps with the eMBB PUSCH and / or URLLCPUSCH that does not include the Uu UCI, the UE may send the SL HARQ-ACK report by including the SL HARQ-ACK report sent through the SL PUCCH in the eMBB PUSCH and / or URLLC PUSCH, and the UE may cancel the sending of the SL PUCCH. For example, in the case of a non-overlapping set, if the SL PUCCH overlaps with the eMBB PUSCH that does not include the Uu UCI, the UE may send the SL HARQ-ACK report by including the SL HARQ-ACK report sent through the SL PUCCH in the eMBB PUSCH, and the UE may cancel the sending of the SL PUCCH. For example, in the above case, if the SL PUCCH overlaps with multiple PUSCHs, the UE may include the SL HARQ-ACK in a PUSCH that is earlier in time. For example, in the above case, if the SL PUCCH overlaps with multiple PUSCHs, the UE may include the SL HARQ-ACK report in the URLLC PUSCH. For example, in the above case, if the SL PUCCH overlaps with multiple PUSCHs, the UE may include the SL HARQ-ACK report in the eMBB PUSCH. For example, based on the combination, the UE may determine the PUSCH including the SL HARQ-ACK report.

[0156] For example, for a non-overlapping set, if the SL PUCCH overlaps in time with the eMBB PUSCH and / or URLLCPUSCH including the Uu UCI, the UE may determine whether to prioritize the PUSCH or the SL PUCCH or the Uu UCI included in the PUSCH according to the priority sorting method between the SL and the UL (for example, if the priority value of the SL is less than the threshold corresponding to the URLLC or the eMBB, the SL is prioritized, otherwise the UL is prioritized). For example, in the above case, if the UE determines that the SL PUCCH takes precedence over the eMBB PUSCH and / or the URLLC PUSCH, the UE may unmap the Uu UCI included in the PUSCH, and the UE may include the SL HARQ-ACK information in the PUSCH, and the UE may cancel the transmission of the SL PUCCH. For example, in the above case, if the SL PUCCH overlaps with multiple PUSCHs, the UE may include the SL HARQ-ACK in the PUSCH that is earlier in time. For example, in the above case, if the SL PUCCH overlaps with multiple PUSCHs, the UE may include the SL HARQ-ACK report in the URLLC PUSCH. For example, in the above case, if the SL PUCCH overlaps with multiple PUSCHs, the UE may include the SL HARQ-ACK report in the eMBB PUSCH. For example, based on the combination, the UE may determine the PUSCH including the SL HARQ-ACK report.

[0157] For example, for a non-overlapping set, if the SL PUCCH overlaps with the eMBB PUCCH and / or URLLC PUCCH in time, the UE can determine the PUCCH to be sent and the PUCCH to be canceled based on the priority sorting method between SL and UL. For example, for a non-overlapping set, the UE can compare the SL PUCCH with the overlapping URLLC PUCCH. In this case, if the SL PUCCH has a lower priority than the URLLC PUCCH, the UE can determine the PUCCH to be sent or canceled by comparing the SL PUCCH with the eMBB PUCCH.

[0158] For example, for a non-overlapping set, the UE may perform priority determination on channels overlapping with the SL PUCCH in a temporally earlier order. For example, for a non-overlapping set, the UE may perform priority determination on channels overlapping with the SL PUCCH in an order determined according to the channel type and / or whether the Uu UCI is included and / or whether the UL-SCH is included, etc. (for example, in the order of the above implementation).

[0159] For example, in the above case, if the UE determines that the SL PUCCH does not take precedence over the overlapped eMBB PUCCH and / or the overlapped URLLC PUCCH and / or the overlapped eMBB PUSCH with Uu UCI and / or the overlapped URLLCPUSCH with Uu UCI, the UE may cancel the transmission of the SL PUCCH.

[0160] For example, when performing a process for resolving the problem of temporal overlap of the eMBB PUCCH and / or the eMBB PUSCH, the UE may also consider the SL PUCCH that overlaps with the eMBB PUCCH and / or the eMBB PUSCH. For example, if the UE determines the overlap of the SL PUCCH and the eMBB PUCCH including the SL HARQ-ACK report, the UE may resolve the overlap of the SL PUCCH and the eMBB PUCCH including the SL HARQ-ACK report. For example, for the eMBB PUSCH that does not include the UL-SCH and / or the eMBB PUCCH that temporally overlaps with the SL PUCCH, the UE may determine the UL channels to be sent and the UL channels to be canceled based on the priority sorting method between the SL and the UL. For example, if the SL PUCCH and the eMBB PUCCH including the SL HARQ-ACK report overlap, the UE may determine the UL channels to be sent and the UL channels to be canceled based on the priority sorting method between the SL and the UL. For example, if the SL PUCCH and the eMBB PUSCH overlap after the above process, the UE may include the SL HARQ-ACK information in the PUSCH. For example, if the Uu-UCI has been included in the eMBB PUSCH, the UE may unmap the Uu UCI when the SL is prioritized according to the priority sorting method between the SL and the UL, and the UE may include the SL HARQ-ACK information in the PUSCH. For example, the PUSCH may include the UL-SCH. For example, if the PUSCH does not include the UL-SCH, the UE may omit the transmission of the PUSCH when the SL is prioritized according to the priority sorting method between the SL and the UL. For example, in the above case, if there are multiple eMBB PUSCHs overlapping with the SLPUCCH, the UE may preferentially include the SL HARQ-ACK information in the PUSCH that does not include the Uu UCI. For example, in this case, if the SL PUSCH overlaps only with the eMBB PUSCH including the Uu UCI, the UE may omit the transmission of the PUSCH when the SL is prioritized according to the priority sorting method between the SL and the UL.

[0161] For example, when performing a process for resolving the problem of URLLC PUCCH and / or URLLC PUSCH overlapping in time, the UE may also consider the SL PUCCH in the same manner as above. For example, if the UE determines that the SL PUCCH including the SL HARQ-ACK report and the URLLC PUCCH overlap, the UE may resolve the overlap of the SL PUCCH including the SL HARQ-ACK report and the URLLC PUCCH.

[0162] In the above case, the SL HARQ-ACK information may be repeatedly transmitted in the URLLC PUSCH and the eMBB PUSCH. Alternatively, for example, in the above case, the UE may include the SL HARQ-ACK information only in the eMBB PUSCH or the URLLC PUSCH. For example, in the above case, the UE may include the SL HARQ-ACK information only in the PUSCH that is earlier or later in time. For example, in the above case, the UE may cancel the mapping of the SL HARQ-ACK information to the eMBB PUSCH. For example, in the above case, the UE may cancel the mapping of the SL HARQ-ACK information to the URLLC PUSCH. Based on the embodiments of the present disclosure, the above method may be extended and applied even when the URLLC PUSCH or eMBB PUSCH including the SL HARQ-ACK information is transmitted in the same time slot as the SL PUSCH and does not overlap in time. For example, in the above case, the UE may cancel the SL PUCCH transmission. For example, in the above case, the UE may cancel the mapping of the SL HARQ-ACK information mapped to the PUSCH.

[0163] In addition, if SL HARQ-ACK information is mapped to eMBB PUSCH in the process of resolving the overlap between SL PUCCH and eMBB PUCCH and / or PUSCH, and if SL PUCCH is maintained in the process of resolving the overlap between SL PUCCH and URLLC PUCCH and / or PUSCH, the eMBB PUSCH and SL PUCCH may overlap with each other again in time. For example, if the eMBB PUSCH including SL HARQ-ACK information and the SL PUCCH overlap in time, the UE can cancel the transmission of SL PUCCH. This is because the information is already included in the eMBB PUSCH. Or, for example, if the eMBB PUSCH including SL HARQ-ACK information and the SL PUSCH overlap in time, the UE can cancel the transmission of eMBB PUSCH. This is because it can be determined that the coverage of SL PUSCH is greater than that of eMBB PUSCH. More specifically, for example, if the SL HARQ-ACK information mapped to the eMBB PUSCH and the SL HARQ-ACK information sent through the SL PUCCH are different, the UE may 1) additionally map the SL HARQ-ACK information sent through the SL PUCCH to the eMBB PUSCH, or 2) cancel the transmission of a UL channel with a lower priority by directly comparing the priority of the SL HARQ-ACK information mapped to the PUSCH with the priority of the SL HARQ-ACK information included in the SL PUCCH.

[0164] In addition, if the SL PUCCH is maintained in the process of resolving the overlap between the SL PUCCH and the eMBB PUCCH and / or PUSCH, and if the SL HARQ-ACK information is mapped to the URLLC PUSCH in the process of resolving the overlap between the SL PUCCH and the URLLC PUCCH and / or PUSCH, the URLLC PUSCH and the SL PUCCH may overlap with each other again in time. For example, if the URLLC PUSCH including the SL HARQ-ACK information and the SL PUCCH overlap in time, the UE can cancel the transmission of the SL PUCCH. This is because the information is already included in the URLLC PUSCH. Or, for example, if the URLLC PUSCH including the SL HARQ-ACK information and the SL PUSCH overlap in time, the UE can cancel the transmission of the PUSCH. This is because it can be determined that the coverage of the SL PUSCH is greater than that of the URLLC PUSCH. More specifically, for example, if the SL HARQ-ACK information mapped to the URLLC PUSCH and the SL HARQ-ACK information sent through the SL PUCCH are different, the UE may 1) additionally map the SL HARQ-ACK information sent through the SL PUSCH to the URLLC PUSCH, or 2) cancel the transmission of the UL channel with a lower priority by directly comparing the priority of the SL HARQ-ACK information mapped to the PUSCH with the priority of the SL HARQ-ACK information included in the SL PUCCH.

[0165] Fig.10 A process of prioritizing UL transmission by a UE based on an embodiment of the present disclosure is shown. Fig.10 The embodiments of the present invention can be combined with various embodiments of the present disclosure.

[0166] Reference Fig.10 In step S1010, the first UE may receive information related to the first PUCCH for SL HARQ-ACK reporting from the base station. In addition, the first UE may receive information related to SL resources from the base station.

[0167] In step S1020, the first UE may send the PSCCH and / or PSSCH to the second UE. For example, the first UE may send the first SCI and the second SCI for scheduling the PSSCH to the second UE via the PSCCH. For example, the first UE may send the second SCI and data (e.g., MAC PDU) to the second UE via the PSSCH.

[0168] In step S1030, the first UE may receive a PSFCH from the second UE. For example, the first UE may receive a SL HARQ-ACK from the second UE via the PSFCH. For example, the SL HARQ-ACK may be ACK information or NACK information.

[0169] In step S1040, the first UE may generate a SL HARQ-ACK report. For example, if the first UE receives ACK information via PSFCH, the first UE may generate a SL HARQ-ACK report as ACK information. For example, if the first UE receives NACK information via PSFCH, the first UE may generate a SL HARQ-ACK report as NACK information. For example, if the first terminal cannot detect PSFCH in multicast option 1 (i.e., only NACK feedback), the first UE may generate a SL HARQ-ACK report as ACK information. For example, if the first UE cannot detect PSFCH in multicast option 2 or unicast (i.e., ACK / NACK feedback), the first UE may generate a SL HARQ-ACK report as NACK information.

[0170] In step S1050, based on the overlap of the second PUCCH with the smaller priority index and the first PUCCH, the first UE may perform a process of prioritizing the first PUCCH and the second PUCCH. In step S1060, based on the overlap of the third PUCCH with the larger priority index and the first PUCCH, the first UE may perform a process of prioritizing the first PUCCH and the third PUCCH. In other words, in steps S1050 and S1060, if the first UE determines the overlap of the PUCCH transmission including the SL HARQ-ACK report and the PUCCH with the larger priority index and / or the smaller priority index, the first UE may resolve the overlap of the PUCCH transmission including the SL HARQ-ACK report and the PUCCH with each priority index. For example, if the first UE determines an overlap of a PUCCH transmission including a SL HARQ-ACK report and a PUCCH of a larger priority index and / or a smaller priority index, the first UE may resolve the overlap of the PUCCH transmission including the SL HARQ-ACK report and the PUCCH of each priority index before resolving the overlap of the PUCCH transmission not including the SL HARQ-ACK or the overlap of the PUCCH transmission and the PUSCH transmission. Fig.10 In the implementation manner, it is assumed that the first UE prioritizes the first PUCCH over the second PUCCH in step S1050, and prioritizes the first PUCCH over the third PUCCH in step S1060.

[0171] In step S1070, the first UE may perform a process for resolving an overlap of at least one PUCCH or at least one PUSCH that does not include a SL HARQ-ACK report. Herein, for example, the first UE may select a first PUSCH. For example, the first PUSCH may be a PUSCH with a larger priority index. For example, the first PUSCH may be a PUSCH with a smaller priority index. For example, after resolving an overlap of at least one PUCCH or at least one PUSCH that does not include a SL HARQ-ACK report, the first UE may determine an overlap of the first PUCCH and the first PUSCH.

[0172] In step S1080, the UE may send a first PUSCH to the base station.

[0173] For example, after resolving the overlap of PUCCH transmission and / or PUSCH other than PUCCH transmission including SL HARQ-ACK report, if the first UE determines the overlap of PUCCH transmission including SL HARQ-ACK report and PUSCH of smaller priority index, if PUSCH does not include UCI, the first UE may resolve the overlap of PUCCH transmission including SL HARQ-ACK report and PUSCH of smaller priority index. In this case, the first UE may transmit the SL HARQ-ACK report by multiplexing it to the first PUSCH.

[0174] For example, after resolving the overlap of PUCCH and / or PUSCH transmissions other than PUCCH transmissions including SL HARQ-ACK reports, if the first UE determines that there is overlap between the PUCCH transmission including the SL HARQ-ACK report and the PUSCH with a larger priority index, the first UE may not send the PUCCH including the SL HARQ-ACK report.

[0175] For example, the base station may indicate whether the SL HARQ-ACK information may be included in the PUSCH. For example, a sublink assignment index (SAI) field may be included in the PUSCH scheduled by the DCI, and the UE may determine whether the SL HARQ-ACK information may be included in the PUSCH based on the value of the SAI field. For example, if the value of the SAI field of the DCI indicates that the SL HARQ-ACK information is not included in the PUSCH (value 0 in the case of a semi-static codebook, value 4 or 0 in the case of a dynamic codebook), and if the PUCCH and PUSCH including the SL HARQ-ACK information overlap in time, the UE may send the PUSCH, and the UE may cancel the transmission of the PUCCH including the SL HARQ-ACK information. For example, the PUSCH may be limited to the case where the priority index value is 1. For example, if the value of the SAI field of the DCI for scheduling PUSCH indicates that the PUSCH includes SL HARQ-ACK information, and if there is no PUCCH including SL HARQ-ACK information overlapping with the PUSCH (for example, transmission is canceled in the previous step), the UE may set all values ​​to NACK. For example, if the value of the SAI field of the DCI for scheduling PUSCH indicates that the PUSCH includes SL HARQ-ACK information, and if there is no PUCCH including SL HARQ-ACK information overlapping with the PUSCH (for example, transmission is canceled in the previous step), the UE may set all values ​​to ACK. For example, if the value of the SAI field of the DCI for scheduling PUSCH indicates that the PUSCH includes SL HARQ-ACK information, and if there is no PUCCH including SL HARQ-ACK information overlapping with the PUSCH (for example, transmission is canceled in the previous step), the codebook value may be set to a combination of predefined values. For example, if the value of the SAI field of the DCI for scheduling the PUSCH indicates that the PUSCH includes SL HARQ-ACK information, and if there is no PUCCH including SL HARQ-ACK information overlapping with the PUSCH (for example, the transmission is canceled in the previous step), the codebook value can be set by using the SL HARQ-ACK information scheduled to be transmitted through the PUCCH in which the transmission is canceled. For example, the implementation of the codebook setting can also be applied to the UL downlink allocation index (DAI) value setting and / or Uu UCI of the DCI and DL HARQ-ACK information accordingly.For example, if the DAI field value of the DCI used to schedule the PUSCH indicates that the PUSCH includes DL HARQ-ACK information, the UE can map the Uu UCI information and / or DL ​​HARQ-ACK information included in the Uu PUCCH to the PUSCH, regardless of whether the transmission of the Uu PUCCH overlapping with the PUSCH is canceled. For example, if the SL PUCCH (PUCCH including SL HARQ-ACK information) overlaps only with the PUSCH scheduled by the DCI indicating that the SL HARQ-ACK information is not included through the SAI field value (if it does not overlap with the PUSCH scheduled by the DCI indicating that the SL HARQ-ACK information is included through the SAI), the UE can cancel the transmission of the SL PUCCH in advance before resolving the overlap between the PUCCHs.

[0176] For example, in the case of a PUSCH scheduled by a DCI including SAI and DAI fields, the SAI value may be set assuming that SL HARQ-ACK information is included, regardless of whether SL HARQ-ACK information and / or DL ​​HARQ-ACK information and / or Uu UCI are ultimately included in the PUSCH. For example, in the case of a PUSCH scheduled by a DCI including SAI and DAI fields, the DAI value may be set assuming that DL HARQ-ACK information is included, regardless of whether SL HARQ-ACK information and / or DL ​​HARQ-ACK information and / or Uu UCI are ultimately included in the PUSCH.

[0177] For example, in the case of PUSCH not scheduled by DCI, if the PUCCH including SL HARQ-ACK information and the PUSCH overlap in time, the UE may send the PUSCH, and the UE may cancel the transmission of the PUCCH including the SL HARQ-ACK information. For example, the PUSCH may be limited to the case where the priority index value is 1. For example, in the case of PUSCH scheduled by DCI without an SAI field, if the PUCCH including SL HARQ-ACK information and the PUSCH overlap in time, the UE may send the PUSCH, and the UE may cancel the transmission of the PUCCH including the SL HARQ-ACK information. For example, the PUSCH may be limited to the case where the priority index value is 1.

[0178] For example, in the case of a PUSCH with a DCI scheduling priority index value of 1, the SAI value may always indicate 0 (in the case of a semi-static codebook size, a type 1 codebook), and the SAI value may always indicate 0 or 4 (in the case of a dynamic codebook size and a type 2 codebook).

[0179] In addition, a PUSCH with a priority index value of 9 may include SL HARQ-ACK information, DL HARQ-ACK information, or neither. In this case, when the base station sets the DAI value and / or SAI value for scheduling PUSCH transmission, the base station sets the value according to the implementation method regardless of the type of HARQ-ACK information included in the PUSCH, or the base station may set the value by counting the number of DCIs received corresponding to the SL HARQ-ACK and / or the number of DCIs received corresponding to the DL HARQ-ACK. In addition, the base station may not be able to identify whether the SL HARQ-ACK information has a higher priority than the DL HARQ-ACK information. Therefore, the base station may perform blind decoding (BD) on the UCI combination (SL HARQ-ACK information or UuUCI) that may be included. In addition, if the codebook size of the DL HARQ-ACK information is the same as the codebook size of the SL HARQ-ACK information, the base station may not be able to distinguish whether the received HARQ-ACK information is SL HARQ-ACK information or DL ​​HARQ-ACK information. Therefore, the base station may not be able to correctly send the retransmission DCI to the UE. For example, the base station may not expect that the DL HARQ-ACK information and the SL HARQ-ACK information that can be simultaneously transmitted through the PUSCH have the same codebook size. For example, if the DL HARQ-ACK information and the SL HARQ-ACK information have the same codebook size, the size may be changed differently by padding the SL HARQ-ACK codebook with 0 or 1 bits. For example, if the DL HARQ-ACK information and the SL HARQ-ACK information have the same codebook size, a specific masking sequence is applied to the CRC for the SL HARQ-ACK information so that it can be distinguished between the DL and the SL.

[0180] Based on various embodiments of the present disclosure, if at least one of the SL PUCCH, eMBB PUCCH, eMBB PUSCH, URLLCPUCCH and / or URLLC PUSCH partially or completely overlaps in the time domain, the UE can clearly determine the channel to be transmitted. Accordingly, in the case where all or part of the eMBB UL, URLLC UL and / or SL HARQ-ACK reports overlap in time, the UE can efficiently perform priority sorting of the SL HARQ-ACK reports.

[0181] Fig.11 A method for a first device to perform wireless communication based on an embodiment of the present disclosure is shown. Fig.11 The embodiments of the present invention can be combined with various embodiments of the present disclosure.

[0182] Reference Fig.11 In step S1110, the first device may receive information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station. In step S1120, the first device may send a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second device via a physical sublink control channel (PSCCH). In step S1130, the first device may send a second SCI and data to the second device via the PSSCH. In step S1140, the first UE may generate a SL HARQ-ACK report for the data. In step S1150, the first device may perform a process of prioritizing between the first PUCCH and the second PUCCH based on an overlap of the second PUCCH with a smaller priority index and the first PUCCH. In step S1160, the first device may perform a process of prioritizing between the first PUCCH and the third PUCCH based on an overlap of the third PUCCH with a larger priority index and the first PUCCH. In step S1170, the first device may select a first PUSCH in the process of resolving the overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without SL HARQ-ACK report. In step S1180, after resolving the overlap of at least one PUCCH or at least one PUSCH without SL HARQ-ACK report, the first device may determine the overlap of the first PUCCH and the first PUSCH. In step S1190, the first device may send the SL HARQ-ACK report to the base station through the first PUSCH based on the first PUSCH with a smaller priority index that does not include uplink control information (UCI).

[0183] For example, the SL HARQ-ACK report may be multiplexed in the first PUSCH based on the first PUSCH of a smaller priority index that does not include UCI.

[0184] For example, the first device may not send the first PUCCH including the SL HARQ-ACK report based on the first PUSCH with a larger priority index. In addition, for example, the first device may send the first PUSCH to the base station based on the first PUSCH with a larger priority index.

[0185] For example, in a process for prioritization between a first PUCCH and a second PUCCH, the first device may prioritize the first PUCCH over the second PUCCH.

[0186] For example, in a process for prioritization between the first PUCCH and the third PUCCH, the first device may prioritize the first PUCCH over the third PUCCH.

[0187] For example, the second PUCCH and the third PUCCH may partially or completely overlap with the first PUCCH in the time domain.

[0188] For example, before resolving overlap of at least one PUCCH without SL HARQ-ACK reporting and at least one PUSCH, the first device may perform a procedure of prioritizing between the first PUCCH and the second PUCCH.

[0189] For example, before resolving the overlap of at least one PUCCH without SL HARQ-ACK reporting and at least one PUSCH, the first device may perform a procedure of prioritizing between the first PUCCH and the third PUCCH.

[0190] For example, the smaller priority index may be 0.

[0191] For example, the greater priority index may be 1.

[0192] For example, a smaller priority index may be associated with enhanced mobile broadband (eMBB).

[0193] For example, a larger priority index may be associated with Ultra-Reliable Low Latency Communication (URLLC).

[0194] The proposed method can be applied to devices based on various embodiments of the present disclosure. First, the processor 102 of the first device 100 can control the transceiver 106 to receive information related to the first physical uplink control channel (PUCCH) for the sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from the base station. In addition, the processor 102 of the first device 100 can control the transceiver 106 to send the first sublink control channel (SCI) and the second SCI for scheduling the physical sublink shared channel (PSSCH) to the second device through the physical sublink control channel (PSCCH). In addition, the processor 102 of the first device 100 can control the transceiver 106 to send the second SCI and data to the second device through the PSSCH. In addition, the processor 102 of the first device 100 can generate a SL HARQ-ACK report for the data. In addition, the processor 102 of the first device 100 can perform a process of prioritizing the first PUCCH and the second PUCCH based on the overlap of the second PUCCH with a smaller priority index and the first PUCCH. In addition, the processor 102 of the first device 100 may perform a process of prioritizing between the first PUCCH and the third PUCCH based on the overlap of the third PUCCH with a larger priority index and the first PUCCH. In addition, the processor 102 of the first device 100 may select the first PUSCH in the process of resolving the overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report. In addition, after resolving the overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report, the processor 102 of the first device 100 may determine the overlap of the first PUCCH and the first PUSCH. In addition, the processor 102 of the first device 100 may send the SL HARQ-ACK report to the base station through the first PUSCH based on the first PUSCH with a smaller priority index that does not include uplink control information (UCI).

[0195] Based on the embodiments of the present disclosure, a first device configured to perform wireless communication may be provided. For example, the first device may include: one or more memories storing instructions; one or more transceivers; and one or more processors connected to the one or more memories and the one or more transceivers. For example, the one or more processors may execute instructions to: receive information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station; send a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second device via a physical sublink control channel (PSCCH); send the second SCI and data to the second device via the PSSCH; generate a SL HARQ-ACK report for the data; perform a process for prioritizing the first PUCCH and the second PUCCH based on an overlap of the second PUCCH and the first PUCCH with a smaller priority index; perform a process for prioritizing the first PUCCH and the third PUCCH based on an overlap of the third PUCCH and the first PUCCH with a larger priority index; select a first PUSCH in a process for resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report; in resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL After the overlap of at least one PUCCH or at least one PUSCH of the HARQ-ACK report, the overlap of the first PUCCH and the first PUSCH is determined; and the SL HARQ-ACK report is sent to the base station through the first PUSCH based on the first PUSCH with the smaller priority index that does not include uplink control information (UCI).

[0196] Based on the embodiments of the present disclosure, a device configured to control a first user equipment (UE) performing wireless communication may be provided. For example, the device may include: one or more processors; and one or more memories, the one or more memories being operably connected to the one or more processors and storing instructions. For example, the one or more processors may execute instructions to: receive information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station; send a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second UE via a physical sublink control channel (PSCCH); send the second SCI and data to the second UE via the PSSCH; generate a SL HARQ-ACK report for the data; perform a process for prioritizing the first PUCCH and the second PUCCH based on an overlap of the second PUCCH and the first PUCCH with a smaller priority index; perform a process for prioritizing the first PUCCH and the third PUCCH based on an overlap of the third PUCCH and the first PUCCH with a larger priority index; select a first PUSCH in a process for resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report; in resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report After the overlap of at least one PUCCH or at least one PUSCH of the HARQ-ACK report, the overlap of the first PUCCH and the first PUSCH is determined; and the SL HARQ-ACK report is sent to the base station through the first PUSCH based on the first PUSCH with the smaller priority index that does not include uplink control information (UCI).

[0197] Based on an embodiment of the present disclosure, a non-transitory computer-readable storage medium storing instructions may be provided. For example, the non-transitory computer-readable storage medium stores instructions that, when executed, can cause a first device to: receive information related to a first physical uplink control channel (PUCCH) for a sublink (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report from a base station; send a first sublink control channel (SCI) and a second SCI for scheduling a physical sublink shared channel (PSSCH) to a second device via a physical sublink control channel (PSCCH); send the second SCI and data to the second device via the PSSCH; generate a SL HARQ-ACK report for the data; perform a process for prioritizing the first PUCCH and the second PUCCH based on an overlap of the second PUCCH with a smaller priority index and the first PUCCH; perform a process for prioritizing the first PUCCH and the third PUCCH based on an overlap of the third PUCCH with a larger priority index and the first PUCCH; select a first PUSCH in a process for resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL HARQ-ACK report; in resolving an overlap of at least one PUCCH or at least one physical uplink shared channel (PUSCH) without a SL After the overlap of at least one PUCCH or at least one PUSCH of the HARQ-ACK report, the overlap of the first PUCCH and the first PUSCH is determined; and the SL HARQ-ACK report is sent to the base station through the first PUSCH based on the first PUSCH with the smaller priority index that does not include uplink control information (UCI).

[0198] Fig.12 A method for a base station to perform wireless communication based on an embodiment of the present disclosure is shown. Fig.12 The embodiments of the present invention can be combined with various embodiments of the present disclosure.

[0199] Reference Fig.12, in step S1210, the base station may send information related to a first physical uplink control channel (PUCCH) for a secondary link (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report to the first device. In step S1220, the base station may send at least one of information related to a second PUCCH with a smaller priority index, information related to a third PUCCH with a larger priority index, or information related to a first physical uplink shared channel (PUSCH) to the first device. In step S1230, the base station may receive a first PUSCH from the first device. For example, based on the overlap of the second PUCCH with a smaller priority index and the first PUCCH, the first device may perform a process for prioritizing between the first PUCCH and the second PUCCH. For example, based on the overlap of the third PUCCH with a larger priority index and the first PUCCH, the first device may perform a process for prioritizing between the first PUCCH and the third PUCCH. For example, the first device may select the first PUSCH in a process for resolving the overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report. For example, after resolving the overlap of at least one PUCCH or at least one PUSCH without SL HARQ-ACK report, the first PUCCH and the first PUSCH may overlap. For example, based on the first PUSCH with a smaller priority index not including uplink control information (UCI), the SL HARQ-ACK report may be sent to the base station through the first PUSCH.

[0200] The proposed method can be applied to devices based on various embodiments of the present disclosure. First, the processor 202 of the base station 200 can control the transceiver 206 to send information related to the first physical uplink control channel (PUCCH) for the side link (SL) hybrid automatic repeat request (HARQ)-acknowledgement (ACK) report to the first device. In addition, the processor 202 of the base station 200 can control the transceiver 206 to send at least one of information related to the second PUCCH with a smaller priority index, information related to the third PUCCH with a larger priority index, or information related to the first physical uplink shared channel (PUSCH) to the first device. In addition, the processor 202 of the base station 200 can control the transceiver 206 to receive the first PUSCH from the first device. For example, based on the overlap of the second PUCCH with a smaller priority index and the first PUCCH, the first device can perform a process for prioritizing between the first PUCCH and the second PUCCH. For example, based on the overlap of the third PUCCH with a larger priority index and the first PUCCH, the first device can perform a process for prioritizing between the first PUCCH and the third PUCCH. For example, the first device may select a first PUSCH in a process for resolving overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report. For example, after resolving overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report, the first PUCCH and the first PUSCH may overlap. For example, based on a first PUSCH with a smaller priority index that does not include uplink control information (UCI), a SL HARQ-ACK report may be sent to a base station via the first PUSCH.

[0201] Based on the embodiments of the present disclosure, a base station configured to perform wireless communication may be provided. For example, the base station may include: one or more memories storing instructions; one or more transceivers; and one or more processors connected to the one or more memories and the one or more transceivers. For example, the one or more processors may execute the instructions to: send information related to a first physical uplink control channel (PUCCH) for a sidelink (SL) hybrid auto-request (HARQ)-acknowledgement (ACK) report to a first device; send information related to a second PUCCH with a smaller priority index, information related to a third PUCCH with a larger priority index, or information related to a first physical uplink shared channel (PUSCH) to the first device; and receive the first PUSCH from the first device. For example, based on the overlap of the second PUCCH with a smaller priority index and the first PUCCH, the first device may perform a process for prioritizing between the first PUCCH and the second PUCCH. For example, based on the overlap of the third PUCCH with a larger priority index and the first PUCCH, the first device may perform a process for prioritizing between the first PUCCH and the third PUCCH. For example, the first device may select the first PUSCH in a process for resolving the overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report. For example, after resolving the overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report, the first PUCCH and the first PUSCH may overlap. For example, based on the first PUSCH with a smaller priority index that does not include uplink control information (UCI), the SL HARQ-ACK report may be sent to the base station through the first PUSCH.

[0202] Based on the embodiments of the present disclosure, a device configured to control a base station performing wireless communication may be provided. For example, the device may include: one or more processors; and one or more memories, the one or more memories being operably connected to the one or more processors and storing instructions. For example, the one or more processors may execute the instructions to: send information related to a first physical uplink control channel (PUCCH) for a sidelink (SL) hybrid autorequest (HARQ)-acknowledgement (ACK) report to a first user equipment (UE); send information related to a second PUCCH with a smaller priority index, information related to a third PUCCH with a larger priority index, or information related to a first physical uplink shared channel (PUSCH) to the first UE; and receive the first PUSCH from the first UE. For example, based on the overlap of the second PUCCH with a smaller priority index and the first PUCCH, the first UE may perform a process for prioritizing between the first PUCCH and the second PUCCH. For example, based on the overlap of the third PUCCH with a larger priority index and the first PUCCH, the first UE may perform a process for prioritizing between the first PUCCH and the third PUCCH. For example, the first UE may select the first PUSCH in a process for resolving overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report. For example, after resolving overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report, the first PUCCH and the first PUSCH may overlap. For example, based on the first PUSCH with a smaller priority index that does not include uplink control information (UCI), the SL HARQ-ACK report may be sent to the base station through the first PUSCH.

[0203] Based on the embodiments of the present disclosure, a non-transitory computer-readable storage medium storing instructions may be provided. For example, the non-transitory computer-readable storage medium stores instructions, which, when executed, may cause the base station to: send information related to a first physical uplink control channel (PUCCH) for a sidelink (SL) hybrid auto-request (HARQ)-acknowledgement (ACK) report to a first device; send information related to a second PUCCH with a smaller priority index, information related to a third PUCCH with a larger priority index, or information related to a first physical uplink shared channel (PUSCH) to the first device; and receive the first PUSCH from the first device. For example, based on the overlap of the second PUCCH with a smaller priority index and the first PUCCH, the first device may perform a process for prioritizing between the first PUCCH and the second PUCCH. For example, based on the overlap of the third PUCCH with a larger priority index and the first PUCCH, the first device may perform a process for prioritizing between the first PUCCH and the third PUCCH. For example, the first device may select a first PUSCH in a process for resolving overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report. For example, after resolving overlap of at least one PUCCH or at least one PUSCH without a SL HARQ-ACK report, the first PUCCH and the first PUSCH may overlap. For example, based on a first PUSCH with a smaller priority index that does not include uplink control information (UCI), a SL HARQ-ACK report may be sent to a base station via the first PUSCH.

[0204] Various embodiments of the present disclosure may be combined with each other.

[0205] Hereinafter, devices to which respective embodiments of the present disclosure can be applied will be described.

[0206] The various descriptions, functions, processes, proposals, methods and / or operational flows of the present disclosure described in this document may be applied to, but not limited to, various fields requiring wireless communication / connection between devices (e.g., 5G).

[0207] Hereinafter, a description will be given in more detail with reference to the accompanying drawings. In the following drawings / descriptions, unless otherwise described, the same reference numerals may represent the same or corresponding hardware blocks, software blocks or functional blocks.

[0208] Fig.13 A communication system (1) according to an embodiment of the present disclosure is shown.

[0209] Reference Fig.13, a communication system (1) to which various embodiments of the present disclosure are applied includes a wireless device, a base station (BS), and a network. Herein, a wireless device refers to a device that performs communication using a radio access technology (RAT) (e.g., 5G new RAT (NR) or long term evolution (LTE)), and may be referred to as a communication / radio / 5G device. The wireless device may include, but is not limited to, a robot (100a), a vehicle (100b-1, 100b-2), an extended reality (XR) device (100c), a handheld device (100d), a home appliance (100e), an Internet of Things (IoT) device (100f), and an artificial intelligence (AI) device / server (400). For example, a vehicle may include a vehicle with a wireless communication function, an autonomous vehicle, and a vehicle capable of performing inter-vehicle communication. Herein, a vehicle may include an unmanned aerial vehicle (UAV) (e.g., a drone). XR devices may include augmented reality (AR) / virtual reality (VR) / mixed reality (MR) devices and may be implemented in the form of head mounted devices (HMD), head up displays (HUD) installed in vehicles, televisions, smart phones, computers, wearable devices, home appliance devices, digital signage, vehicles, robots, etc. Handheld devices may include smart phones, smart boards, wearable devices (e.g., smart watches or smart glasses), and computers (e.g., notebooks). Home appliances may include TVs, refrigerators, and washing machines. IoT devices may include sensors and smart meters. For example, a BS and a network may be implemented as wireless devices, and a specific wireless device (200a) may operate as a BS / network node relative to other wireless devices.

[0210] Here, in addition to LTE, NR and 6G, the wireless communication technology implemented in the wireless devices 100a to 100f of the present disclosure may also include a narrowband Internet of Things for low-power communication. In this case, for example, NB-IoT technology may be an example of a low-power wide area network (LPWAN) technology, and may be implemented as a standard such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices 100a to 100f of the present disclosure may perform communication based on LTE-M technology. In this case, as an example, LTE-M technology may be an example of LPWAN, and may be referred to as various names including enhanced machine type communication (eMTC), etc. For example, LTE-M technology may be implemented as at least any one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-bandwidth limited (non-BL), 5) LTE-MTC, 6) LTE machine type communication and / or 7) LTE M, and is not limited to the above names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices 100a to 100f of the present disclosure may include at least one of Bluetooth, a low power wide area network (LPWAN), and ZigBee considering low power communication, and is not limited to the above names. As an example, the ZigBee technology may generate a personal area network (PAN) related to small / low power digital communication based on various standards including IEEE 802.15.4, etc., and may be referred to as various names.

[0211] The wireless devices 100a to 100f may be connected to the network 300 via the BS 200. 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 via the network 300. The network 300 may be configured using a 3G network, a 4G (e.g., LTE) network, or a 5G (e.g., NR) network. Although the wireless devices 100a to 100f may communicate with each other via the BS 200 / network 300, the wireless devices 100a to 100f may perform direct communication (e.g., sidelink communication) with each other without passing through the BS / network. For example, the vehicles 100b-1 and 100b-2 may perform direct communication (e.g., vehicle-to-vehicle (V2V) / vehicle-to-everything (V2X) communication). An IoT device (e.g., a sensor) may perform direct communication with other IoT devices (e.g., a sensor) or other wireless devices 100a to 100f.

[0212] Wireless communication / connection 150a, 150b or 150c can be established between wireless devices 100a to 100f / BS 200 or BS200 / BS 200. Here, the wireless communication / connection can be established through various RATs (e.g., 5G NR) such as uplink / downlink communication 150a, sidelink communication 150b (or D2D communication) or inter-BS communication (e.g., relay, integrated access backhaul (IAB)). The wireless device and the BS / wireless device can send / receive radio signals to / from each other through wireless communication / connection 150a and 150b. For example, wireless communication / connection 150a and 150b can send / receive signals through various physical channels. To this end, various configuration information configuration processes for sending / receiving radio signals, various signal processing processes (e.g., channel coding / decoding, modulation / demodulation and resource mapping / demapping), and at least a portion of the resource allocation process can be performed based on various proposals of the present disclosure.

[0213] Fig.14 A wireless device according to an embodiment of the present disclosure is shown.

[0214] Reference Fig.14 , the first wireless device (100) and the second wireless device (200) may transmit radio signals via various RATs (e.g., LTE and NR). Herein, {the first wireless device (100) and the second wireless device (200)} may correspond to Fig.13 {wireless device (100x) and BS (200)} and / or {wireless device (100x) and wireless device (100x)}.

[0215] The first wireless device 100 may include one or more processors 102 and one or more memories 104, and may additionally further include one or more transceivers 106 and / or one or more antennas 108. The (one or more) processors 102 may control the (one or more) memories 104 and / or the (one or more) transceivers 106, and may be configured to implement the descriptions, functions, processes, proposals, methods and / or operation flows disclosed in this document. For example, the (one or more) processors 102 may process the information in the (one or more) memories 104 to generate first information / signals, and then transmit a radio signal including the first information / signals through the (one or more) transceivers 106. The (one or more) processors 102 may receive a radio signal including a second information / signal through the transceiver 106, and then store the information obtained by processing the second information / signals in the (one or more) memories 104. The (one or more) memories 104 may be connected to the (one or more) processors 102, and may store various information related to the operation of the (one or more) processors 102. For example, (one or more) memories 104 may store software code including commands for executing part or all of the processing controlled by (one or more) processors 102 or for executing the descriptions, functions, processes, proposals, methods and / or operational flows disclosed in this document. Here, (one or more) processors 102 and (one or more) memories 104 may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). (One or more) transceivers 106 may be connected to (one or more) processors 102 and send and / or receive radio signals through (one or more) antennas 108. Each transceiver 106 may include a transmitter and / or a receiver. (One or more) transceivers 106 may be used interchangeably with (one or more) radio frequency (RF) units. In the present disclosure, a wireless device may represent a communication modem / circuit / chip.

[0216] The second wireless device 200 may include one or more processors 202 and one or more memories 204, and may additionally further include one or more transceivers 206 and / or one or more antennas 208. The (one or more) processors 202 may control the (one or more) memories 204 and / or the (one or more) transceivers 206, and may be configured to implement the descriptions, functions, processes, proposals, methods and / or operation flows disclosed in this document. For example, the (one or more) processors 202 may process the information in the (one or more) memories 204 to generate third information / signals, and then transmit a radio signal including the third information / signals through the (one or more) transceivers 206. The (one or more) processors 202 may receive a radio signal including fourth information / signals through the (one or more) transceivers 106, and then store the information obtained by processing the fourth information / signals in the (one or more) memories 204. The (one or more) memories 204 may be connected to the (one or more) processors 202, and may store various information related to the operation of the (one or more) processors 202. For example, (one or more) memories 204 may store software code including commands for executing part or all of the processing controlled by (one or more) processors 202 or for executing the descriptions, functions, processes, proposals, methods and / or operational flows disclosed in this document. Here, (one or more) processors 202 and (one or more) memories 204 may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). (One or more) transceivers 206 may be connected to (one or more) processors 202 and transmit and / or receive radio signals through (one or more) antennas 208. Each transceiver 206 may include a transmitter and / or a receiver. (One or more) transceivers 206 may be used interchangeably with (one or more) RF units. In the present disclosure, a wireless device may represent a communication modem / circuit / chip.

[0217] Below, the hardware elements of the wireless devices 100 and 200 will be described in more detail. One or more protocol layers may be implemented by, but are not limited to, one or more processors 102 and 202. For example, one or more processors 102 and 202 may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, and SDAP). One or more processors 102 and 202 may generate one or more protocol data units (PDUs) and / or one or more service data units (SDUs) according to the description, function, process, proposal, method, and / or operation flow disclosed in this document. One or more processors 102 and 202 may generate messages, control information, data, or information according to the description, function, process, proposal, method, and / or operation flow disclosed in this document. One or more processors 102 and 202 may generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data, or information according to the description, function, process, proposal, method, and / or operation flow disclosed in this document, and provide the generated signals to one or more transceivers 106 and 206. One or more processors 102 and 202 can receive signals (e.g., baseband signals) from one or more transceivers 106 and 206 and obtain PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, processes, proposals, methods, and / or operating procedures disclosed in this document.

[0218] One or more processors 102 and 202 may be referred to as controllers, microcontrollers, microprocessors, or microcomputers. One or more processors 102 and 202 may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more application specific integrated circuits (ASICs), one or more digital signal processors (DSPs), one or more digital signal processing devices (DSPDs), one or more programmable logic devices (PLDs), or one or more field programmable gate arrays (FPGAs) may be included in one or more processors 102 and 202. The descriptions, functions, processes, proposals, methods, and / or operational flows disclosed in this document may be implemented using firmware or software, and the firmware or software may be configured to include modules, processes, or functions. Firmware or software configured to execute the descriptions, functions, processes, proposals, methods, and / or operational flows disclosed in this document may be included in one or more processors 102 and 202 or stored in one or more memories 104 and 204, thereby being driven by one or more processors 102 and 202. The descriptions, functions, processes, proposals, methods, and / or operational flows disclosed in this document may be implemented using software or firmware in the form of code, commands, and / or command sets.

[0219] One or more memories 104 and 204 may be connected to one or more processors 102 and 202 and may store various types of data, signals, messages, information, programs, codes, instructions, and / or commands. One or more memories 104 and 204 may be composed of read-only memory (ROM), random access memory (RAM), electrically erasable programmable read-only memory (EPROM), flash memory, hard drive, registers, cash memory, computer-readable storage media, and / or combinations thereof. One or more memories 104 and 204 may be located inside and / or outside one or more processors 102 and 202. One or more memories 104 and 204 may be connected to one or more processors 102 and 202 via various technologies such as wired or wireless connections.

[0220] One or more transceivers 106 and 206 may send user data, control information, and / or radio signals / channels mentioned in the method and / or operation flow of this document to one or more other devices. One or more transceivers 106 and 206 may receive user data, control information, and / or radio signals / channels mentioned in the description, function, process, proposal, method, and / or operation flow disclosed in this document from one or more other devices. For example, one or more transceivers 106 and 206 may be connected to one or more processors 102 and 202, and may send and receive radio signals. For example, one or more processors 102 and 202 may perform control so that one or more transceivers 106 and 206 may send user data, control information, or radio signals to one or more other devices. One or more processors 102 and 202 may perform control so that one or more transceivers 106 and 206 may receive user data, control information, or radio signals from one or more other devices. One or more transceivers 106 and 206 may be connected to one or more antennas 108 and 208, and one or more transceivers 106 and 206 may be configured to send and receive user data, control information and / or radio signals / channels mentioned in the description, functions, processes, proposals, methods and / or operation flows disclosed in this document through one or more antennas 108 and 208. In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers 106 and 206 may convert received radio signals / channels, etc. from RF band signals to baseband signals to process received user data, control information, radio signals / channels, etc. using one or more processors 102 and 202. 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. To this end, one or more transceivers 106 and 206 may include (analog) oscillators and / or filters.

[0221] Fig.15 A signal processing circuit for transmitting a signal according to an embodiment of the present disclosure is shown.

[0222] Reference Fig.15 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). Fig.15 Operation / function, not limited to Fig.14 The processor (102, 202) and / or transceiver (106, 206) of Fig.14The processor (102, 202) and / or the transceiver (106, 206) are implemented Fig.15 For example, you can Fig.14 The processor (102, 202) implements blocks 1010 to 1060. Alternatively, Fig.15 The processor (102, 202) implements blocks 1010 to 1050 and can be implemented by Fig.14 The transceiver (106, 206) is used to implement box 1060.

[0223] Can be through Fig.15 The signal processing circuit (1000) converts the codeword into a radio signal. Herein, the codeword is a coded bit sequence of an information block. The information block may include a transport block (e.g., UL-SCH transport block, DL-SCH transport block). The radio signal may be transmitted through various physical channels (e.g., PUSCH and PDSCH).

[0224] Specifically, the codeword can be converted into a scrambled bit sequence by the scrambler 1010. The scrambling sequence for scrambling can be generated based on an initial value, and the initial value can include the ID information of the wireless device. The scrambled bit sequence can be modulated into a modulation symbol sequence by the modulator 1020. The modulation scheme may include pi / 2-binary phase shift keying (pi / 2-BPSK), m-phase shift keying (m-PSK) and m-quadrature amplitude modulation (m-QAM). The complex modulation symbol sequence can be mapped to one or more transmission layers by the layer mapper 1030. The modulation symbol of each transmission layer can be mapped (precoded) to (one or more) corresponding antenna ports by the precoder 1040. The output z of the precoder 1040 can be obtained by multiplying the output y of the layer mapper 1030 with the N*M precoding matrix W. Here, N is the number of antenna ports and M is the number of transmission layers. The precoder 1040 can perform precoding after performing transform precoding (e.g., DFT) for the complex modulation symbol. Alternatively, the precoder 1040 may perform precoding without performing transform precoding.

[0225] The resource mapper 1050 may map the modulation symbols of each antenna port to time-frequency resources. The time-frequency resources may include multiple symbols in the time domain (e.g., CP-OFDMA symbols and DFT-s-OFDMA symbols) and multiple subcarriers in the frequency domain. The signal generator 1060 may generate a radio signal from the mapped modulation symbols, and the generated radio signal may be sent to other devices through each antenna. To this end, the signal generator 1060 may include an inverse fast Fourier transform (IFFT) module, a cyclic prefix (CP) inserter, a digital-to-analog converter (DAC), and an up-converter.

[0226] Can be used with Fig.15 The signal processing process for the signal received in the wireless device is configured in a manner opposite to the signal processing process (1010-1060) of the wireless device. Fig.14 100, 200) can receive a radio signal from the outside through an antenna port / transceiver. The received radio signal can be converted into a baseband signal by a signal restorer. To this end, 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. Next, the baseband signal can be restored to a codeword through a resource demapping process, a post-coding process, a demodulation processor, and a descrambling process. The codeword can be restored to the original information block by decoding. Therefore, a signal processing circuit (not illustrated) for receiving a signal may include a signal restorer, a resource demapper, a post-encoder, a demodulator, a descrambler, and a decoder.

[0227] Fig.16 Another example of a wireless device according to an embodiment of the present disclosure is shown. The wireless device can be implemented in various forms according to use cases / services (see Fig.13 ).

[0228] Reference Fig.16 , the wireless device (100, 200) may correspond to Fig.14 The wireless devices (100, 200) may be configured by various elements, components, units / portions and / or modules. For example, each of the wireless devices (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130) and additional components (140). The communication unit may include a communication circuit (112) and (one or more) transceivers (114). For example, the communication circuit (112) may include Fig.14 One or more processors (102, 202) and / or one or more memories (104, 204) of the present invention. For example, the transceiver(s) (114) may include Fig.14The control unit (120) is electrically connected to the communication unit (110), the memory (130) and the additional components (140), and controls the overall operation of the wireless device. For example, the control unit (120) can control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit (130). The control unit (120) can send information stored in the memory unit (130) to the outside (e.g., other communication devices) via the communication unit (110) through a wireless / wired interface, or store information received from the outside (e.g., other communication devices) via the communication unit (110) through a wireless / wired interface in the memory unit (130).

[0229] The additional component (140) may be configured in various ways depending on the type of the wireless device. For example, the additional component (140) may include at least one of a power unit / battery, an input / output (I / O) unit, a drive unit, and a computing unit. The wireless device may be implemented in the following forms without limitation: a robot ( Fig.13 100a), vehicles ( Fig.13 100b-1 and 100b-2), XR devices ( Fig.13 100c), handheld device ( Fig.13 100d), household appliances ( Fig.13 100e), IoT devices ( Fig.13 100f), digital broadcast terminal, hologram device, public safety device, MTC device, medical device, fintech device (or financial device), security device, climate / environmental device, AI server / device ( Fig.13 400), BS( Fig.13 200), network nodes, etc. Depending on the use case / service, the wireless device can be used in a mobile or fixed place.

[0230] exist Fig.16In the wireless device (100, 200), all the various elements, components, units / parts and / or modules in the wireless device (100, 200) can be connected to each other through a wired interface, or at least part of them can be connected wirelessly through the communication unit (110). For example, in each of the wireless devices (100, 200), the control unit (120) and the communication unit (110) can be connected by wire, and the control unit (120) and the first unit (e.g., 130, 140) can be connected wirelessly through the communication unit (110). Each element, component, unit / part and / or module in the wireless device (100, 200) can also include one or more elements. For example, the control unit (120) can be constructed by a collection of one or more processors. As an example, the control unit (120) can be constructed by a collection of a communication control processor, an application processor, an electronic control unit (ECU), a graphics processing unit and a memory control processor. As another example, the memory ( 130 ) may be constructed by random access memory (RAM), dynamic RAM (DRAM), read only memory (ROM), flash memory, volatile memory, nonvolatile memory, and / or combinations thereof.

[0231] Hereinafter, the implementation will be described in detail with reference to the accompanying drawings. Fig.16 .

[0232] Fig.17 A handheld device according to an embodiment of the present disclosure is shown. The handheld device may include a smart phone, a smart pad, a wearable device (e.g., a smart watch or smart glasses), or a portable computer (e.g., a notebook). The handheld 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).

[0233] Reference Fig.17 The handheld device (100) may include 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 I / O unit (140c). The antenna unit (108) may be configured as a part of the communication unit (110). Blocks 110 to 130 / 140a to 140c correspond to Fig.16 Frame 110 to 130 / 140.

[0234] The communication unit 110 may send and receive signals (e.g., data signals and control signals) to and from other wireless devices or BSs. The control unit 120 may perform various operations by controlling the constituent elements of the handheld device 100. The control unit 120 may include an application processor (AP). The memory unit 130 may store data / parameters / programs / codes / commands required to drive the handheld device 100. The memory unit 130 may store input / output data / information. The power supply unit 140a may supply power to the handheld device 100 and include a wired / wireless charging circuit, a battery, etc. The interface unit 140b may support the connection of the handheld device 100 to other external devices. The interface unit 140b may include various ports (e.g., audio I / O ports and video I / O ports) for connecting to external devices. The I / O unit 140c may input or output video information / signals, audio information / signals, data and / or information input by a user. The I / O unit 140c may include a camera, a microphone, a user input unit, a display unit 140d, a speaker and / or a tactile module.

[0235] For example, in the case of data communication, the I / O unit 140c can obtain information / signals (e.g., touch, text, voice, image, or video) input by the user, and the obtained information / signals can be stored in the memory unit 130. The communication unit 110 can convert the information / signals stored in the memory into radio signals, and directly send the converted radio signals to other wireless devices or to the BS. The communication unit 110 can receive radio signals from other wireless devices or BSs, and then restore the received radio signals to the original information / signals. The restored information / signals can be stored in the memory unit 130, and can be output as various types (e.g., text, voice, image, video, or tactile) through the I / O unit 140.

[0236] Fig.18 A vehicle or autonomous vehicle according to an embodiment of the present disclosure is shown. The vehicle or autonomous vehicle may be implemented by a mobile robot, a car, a train, a manned / unmanned aerial vehicle (AV), a ship, etc.

[0237] Reference Fig.18 The vehicle or autonomous vehicle (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a drive unit (140a), a power supply unit (140b), a sensor unit (140c) and an autonomous driving unit (140d). The antenna unit (108) may be configured as a part of the communication unit (110). Blocks 110 / 130 / 140a to 140d correspond to Fig.16 Frame 110 / 130 / 140.

[0238] The communication unit 110 may send and receive signals (e.g., data signals and control signals) to and from external devices such as other vehicles, BSs (e.g., gNBs and roadside units), and servers. The control unit 120 may perform various operations by controlling elements of the vehicle or autonomous vehicle 100. The control unit 120 may include an electronic control unit (ECU). The drive unit 140a may cause the vehicle or autonomous vehicle 100 to travel on the road. The drive unit 140a may include an engine, a motor, a transmission system, wheels, brakes, a steering device, etc. The power supply unit 140b may supply power to the vehicle or autonomous vehicle 100, and may include a wired / wireless charging circuit, a battery, etc. The sensor unit 140c may acquire vehicle status, external environment information, user information, etc. The sensor unit 140c may include an inertial measurement unit (IMU) sensor, a collision sensor, a wheel sensor, a speed sensor, a slope sensor, a weight sensor, a heading sensor, a position module, a vehicle forward / reverse sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, a lighting sensor, a pedal position sensor, etc. The autonomous driving unit 140d may implement a technology for maintaining a lane in which the vehicle is traveling, a technology for automatically adjusting a speed (e.g., adaptive cruise control), a technology for autonomously driving along a determined path, a technology for driving by automatically setting a path when a destination is set, and the like.

[0239] For example, the communication unit 110 may receive map data, traffic information data, etc. from an external server. The autonomous driving unit 140d may generate an autonomous driving path and a driving plan from the acquired data. The control unit 120 may control the drive unit 140a so that the vehicle or the autonomous driving vehicle 100 may move along the autonomous driving path according to the driving plan (e.g., speed / direction control). In the middle of autonomous driving, the communication unit 110 may aperiodically / periodically acquire the most recent traffic information data from an external server and acquire surrounding traffic information data from adjacent vehicles. In the middle of autonomous driving, the sensor unit 140c may acquire vehicle status and / or surrounding environment information. The autonomous driving unit 140d may update the autonomous driving path and driving plan based on the newly acquired data / information. The communication unit 110 may transmit information about the vehicle position, autonomous driving path, and / or driving plan to an external server. The external server may predict traffic information data using AI technology, etc. based on information collected from the vehicle or autonomous driving vehicle, and provide the predicted traffic information data to the vehicle or autonomous driving vehicle.

[0240] The claims in this specification may be combined in various ways. For example, the technical features in the method claims of this specification may be combined to be implemented or performed in a device, and the technical features in the device claims may be combined to be implemented or performed in a method. In addition, the technical features in (one or more) method claims and (one or more) device claims may be combined to be implemented or performed in a device. In addition, the technical features in (one or more) method claims and (one or more) device claims may be combined to be implemented or performed in a method.

Claims

1. A method for performing wireless communication by a first device, the method comprising the following steps: Performing transmission of a physical secondary link shared channel PSSCH to the second device; Obtaining secondary link SL hybrid automatic repeat request confirmation HARQ-ACK information for the PSSCH transmission; determining an overlap between a first physical uplink control channel PUCCH and a second PUCCH for reporting the SL HARQ-ACK information, and an overlap between the first PUCCH and a third PUCCH, wherein the second PUCCH is associated with a lower priority than the third PUCCH having a higher priority; respectively, resolving overlap between the first PUCCH and the second PUCCH, and resolving overlap between the first PUCCH and the third PUCCH; determining an overlap between i) a first physical uplink shared channel (PUSCH) and ii) a PUCCH without a SL HARQ-ACK report and the first PUSCH after resolving an overlap between the first PUCCH and the first PUSCH, wherein the first PUSCH is associated with a lower priority than a second PUSCH with a higher priority and the first PUSCH does not include uplink control information (UCI); and The first PUSCH including the SL HARQ-ACK information is sent to a network to resolve overlap between the first PUCCH and the first PUSCH.

2. The method according to claim 1, wherein: The SL HARQ-ACK information is multiplexed in the first PUSCH.

3. The method according to claim 1, wherein: The first device does not send the first PUCCH including the SL HARQ-ACK information.

4. The method according to claim 1, further comprising the steps of: The second PUSCH is sent by the first device to the network.

5. The method according to claim 1, wherein: The first device prioritizes the first PUCCH over the second PUCCH based on resolving overlap between the first PUCCH and the second PUCCH.

6. The method according to claim 1, wherein: The first device prioritizes the first PUCCH over the third PUCCH based on resolving overlap between the first PUCCH and the third PUCCH.

7. The method according to claim 1, wherein: The second PUCCH and the third PUCCH partially or completely overlap with the first PUCCH in the time domain.

8. The method according to claim 1, wherein: Before resolving the overlap between the first PUSCH and the PUCCH without the SL HARQ-ACK report, the first device performs resolution of the overlap between the first PUCCH and the second PUCCH.

9. The method according to claim 1, wherein: The priority index of the second PUCCH is 0, and the priority index of the third PUCCH is 1.

10. The method according to claim 1, wherein: The priority index of the first PUSCH is 0 and the priority index of the second PUSCH is 1.

11. The method according to claim 1, wherein: The second PUCCH is associated with enhanced mobile broadband eMBB PUCCH, and the third PUCCH is associated with ultra-reliable low latency communication URLLC PUCCH.

12. The method according to claim 1, wherein: The first PUSCH is associated with enhanced mobile broadband eMBB PUSCH, and the second PUSCH is associated with ultra-reliable low latency communication URLLC PUSCH.

13. A first device configured to perform wireless communication, the first device comprising: one or more memories storing instructions; one or more transceivers; as well as one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to: Performing transmission of a physical secondary link shared channel PSSCH to the second device; Obtaining secondary link SL hybrid automatic repeat request confirmation HARQ-ACK information for the PSSCH transmission; determining an overlap between a first physical uplink control channel PUCCH and a second PUCCH for reporting the SL HARQ-ACK information, and an overlap between the first PUCCH and a third PUCCH, wherein the second PUCCH is associated with a lower priority than the third PUCCH having a higher priority; respectively, resolving overlap between the first PUCCH and the second PUCCH, and resolving overlap between the first PUCCH and the third PUCCH; determining an overlap between i) a first physical uplink shared channel (PUSCH) and ii) a PUCCH without a SL HARQ-ACK report and the first PUSCH after resolving an overlap between the first PUCCH and the first PUSCH, wherein the first PUSCH is associated with a lower priority than a second PUSCH with a higher priority and the first PUSCH does not include uplink control information (UCI); and The first PUSCH including the SL HARQ-ACK information is sent to a network to resolve overlap between the first PUCCH and the first PUSCH.

14. A device configured to control a first user equipment UE performing wireless communication, the device comprising: one or more processors; as well as one or more memories operatively connected to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to: Performing transmission of a physical secondary link shared channel PSSCH to the second device; Obtaining secondary link SL hybrid automatic repeat request confirmation HARQ-ACK information for the PSSCH transmission; determining an overlap between a first physical uplink control channel PUCCH and a second PUCCH for reporting the SL HARQ-ACK information, and an overlap between the first PUCCH and a third PUCCH, wherein the second PUCCH is associated with a lower priority than the third PUCCH having a higher priority; respectively, resolving overlap between the first PUCCH and the second PUCCH, and resolving overlap between the first PUCCH and the third PUCCH; determining an overlap between i) a first physical uplink shared channel (PUSCH) and ii) a PUCCH without a SL HARQ-ACK report and the first PUSCH after resolving an overlap between the first PUCCH and the first PUSCH, wherein the first PUSCH is associated with a lower priority than a second PUSCH with a higher priority and the first PUSCH does not include uplink control information (UCI); and The first PUSCH including the SL HARQ-ACK information is sent to a network to resolve overlap between the first PUCCH and the first PUSCH.

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