Transmission and reception method and apparatus based on terminal type

Abstract

Provided are a method by which a first device communicates wirelessly and an apparatus supporting same. The first device can: obtain information related to a first cyclic shift; and perform transmission on the basis of the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device can be configured independently of information related to a second cyclic shift for a non-aerial device.

Description

Transmission and reception method and device based on terminal type

[0001] The present disclosure relates to a wireless communication system.

[0002] 5G NR, the successor to LTE (long-term evolution), is a new clean-slate mobile communications system characterized by high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low-frequency bands below 1 GHz, mid-frequency bands between 1 GHz and 10 GHz, and high-frequency (millimeter wave) bands above 24 GHz.

[0003] The 6G (wireless communication) system aims to achieve (i) very high data rates per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) low energy consumption for battery-free Internet of Things (IoT) devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capabilities. The vision of the 6G system can be divided into four aspects: intelligent connectivity, deep connectivity, holographic connectivity, and ubiquitous connectivity, and the 6G system can satisfy the requirements as shown in Table 1 below. For example, Table 1 can represent an example of the requirements of a 6G system.

[0004] Maximum data rate per device: 1 Tbps, E2E latency: 1 ms, Maximum spectral efficiency: 100 bps / Hz, Mobility support: Up to 1000 km / hr, Satellite integration: Fully AI, Fully autonomous driving, Fully XR, Fully haptic communication

[0005] According to one embodiment of the present disclosure, a method for performing wireless communication by a first device may be provided. For example, the method may include the steps of: obtaining information related to a first cyclic shift; and performing transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0006] According to one embodiment of the present disclosure, a first device configured to perform wireless communication may be provided. For example, the first device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: obtain information related to a first cyclic shift; and perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0007] According to one embodiment of the present disclosure, a processing device configured to control a first device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: obtain information related to a first cyclic shift; and perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0008] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a first device to: obtain information related to a first cyclic shift; and perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0009] FIG. 1 illustrates a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure.

[0010] FIG. 2 illustrates an electromagnetic spectrum according to one embodiment of the present disclosure.

[0011] FIG. 3 illustrates an example of a typical scenario of an NTN based on a transparent payload, according to one embodiment of the present disclosure.

[0012] FIG. 4 illustrates an example of a typical scenario of an NTN based on a regenerative payload, according to one embodiment of the present disclosure.

[0013] FIG. 5 illustrates an example of a sensing operation according to one embodiment of the present disclosure.

[0014] FIG. 6 illustrates a slot structure of a frame according to one embodiment of the present disclosure.

[0015] FIG. 7 illustrates an example of a BWP according to one embodiment of the present disclosure.

[0016] FIG. 8 illustrates a procedure for a terminal to perform V2X or SL communication according to a resource allocation mode, according to one embodiment of the present disclosure.

[0017] FIG. 9 illustrates a method for a first device to perform wireless communication according to one embodiment of the present disclosure.

[0018] FIG. 10 illustrates a method for a second device to perform wireless communication according to one embodiment of the present disclosure.

[0019] FIG. 11 illustrates a communication system (1) according to one embodiment of the present disclosure.

[0020] FIG. 12 illustrates a wireless device according to one embodiment of the present disclosure.

[0021] FIG. 13 illustrates a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0022] FIG. 14 illustrates a wireless device according to an embodiment of the present disclosure.

[0023] FIG. 15 illustrates a mobile device according to one embodiment of the present disclosure.

[0024] FIG. 16 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure.

[0025] As used herein, "A or B" can mean "only A," "only B," or "both A and B." In other words, as used herein, "A or B" can be interpreted as "A and / or B." For example, as used herein, "A, B or C" can mean "only A," "only B," "only C," or "any combination of A, B and C."

[0026] As used herein, a slash ( / ) or a comma can mean "and / or." For example, "A / B" can mean "A and / or B." Accordingly, "A / B" can mean "only A," "only B," or "both A and B." For example, "A, B, C" can mean "A, B, or C."

[0027] In this specification, "at least one of A and B" may mean "only A", "only B" or "both A and B". Additionally, in this specification, the expressions "at least one of A or B" or "at least one of A and / or B" may be interpreted identically to "at least one of A and B".

[0028] Additionally, in this specification, “at least one of A, B and C” can mean “only A,” “only B,” “only C,” or “any combination of A, B and C.” Additionally, “at least one of A, B or C” or “at least one of A, B and / or C” can mean “at least one of A, B and C.”

[0029] Additionally, parentheses used herein may mean "for example." Specifically, when indicated as "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information." In other words, "control information" in this specification is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information."

[0030] In the following explanation, ‘when, if, in case of’ can be replaced with ‘based on’.

[0031] Technical features individually described in a single drawing in this specification may be implemented individually or simultaneously.

[0032] In this specification, higher layer parameters may be parameters that are set for the terminal, preset, or predefined. For example, a base station or network may transmit higher layer parameters to the terminal. For example, higher layer parameters may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0033] In this specification, "configured or defined" may be interpreted as being configured or preset to a device through predefined signaling (e.g., SIB, MAC, RRC) from a base station or network. In this specification, "configured or defined" may be interpreted as being preset to a device.

[0034] The technology proposed in this specification can be used in various wireless communication systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, E-UTRA (evolved UTRA), LTE (long term evolution), and 5G NR.

[0035] The technology proposed in this specification can be implemented with 6G wireless technology and applied to various 6G systems. For example, 6G systems can have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine-type communication (mMTC), artificial intelligence (AI) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0036] FIG. 1 illustrates a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure. The embodiment of FIG. 1 can be combined with various embodiments of the present disclosure.

[0037] New network characteristics in 6G may include:

[0038] - Satellite integrated network

[0039] - Connected Intelligence: Unlike previous generations of wireless communication systems, 6G is revolutionary, upgrading the wireless evolution from "connected objects" to "connected intelligence." AI can be applied at every stage of the communication process (or at every signal processing step, as described below).

[0040] - Seamless integration of wireless information and energy transfer

[0041] - Ubiquitous super 3D connectivity: Access to networks and core network functions of drones and very low Earth orbit satellites will create super 3D connectivity in 6G ubiquitous.

[0042] Some general requirements for the new network characteristics of 6G, such as the above, may be as follows:

[0043] - small cell networks

[0044] - Ultra-dense heterogeneous network

[0045] - High-capacity backhaul

[0046] - Radar technology integrated with mobile technology: High-precision localization (or location-based services) through communications is a key feature of 6G wireless communication systems. Therefore, radar systems will be integrated with 6G networks.

[0047] - Softwarization and virtualization

[0048] Below, the core implementation technologies of the 6G system are described.

[0049] - Artificial Intelligence: Incorporating AI into communications can streamline and improve real-time data transmission. AI can use numerous analytics to determine how complex target tasks should be performed. This means AI can increase efficiency and reduce processing delays. Time-consuming tasks such as handovers, network selection, and resource scheduling can be performed instantly using AI. AI can also play a key role in machine-to-machine (M2M), machine-to-human, and human-to-machine communications. Furthermore, AI can facilitate rapid communication in brain-computer interfaces (BCIs). AI-based communication systems can be supported by metamaterials, intelligent structures, intelligent networks, intelligent devices, intelligent cognitive radios, self-sustaining wireless networks, and machine learning.

[0050] - THz communication (terahertz communication): Data rates can be increased by increasing the bandwidth. This can be achieved by utilizing sub-THz communication with a wide bandwidth and applying advanced massive MIMO technology. THz waves, also known as sub-millimeter waves, typically refer to the frequency range between 0.1 THz and 10 THz with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz to 300 GHz band (Sub-THz band) is considered a major portion of the THz band for cellular communications. Adding the Sub-THz band to the mmWave band will increase the capacity of 6G cellular communications. Among the defined THz bands, 300 GHz to 3 THz lies in the far infrared (IR) frequency band. While part of the optical band, the 300 GHz to 3 THz band lies at the boundary of the optical band, immediately following the RF band. Therefore, this 300 GHz to 3 THz band exhibits similarities to RF. Figure 2 illustrates the electromagnetic spectrum according to one embodiment of the present disclosure. The embodiment of FIG. 2 can be combined with various embodiments of the present disclosure. Key characteristics of THz communications include (i) widely available bandwidth to support very high data rates, and (ii) high path loss at high frequencies (highly directional antennas are essential). The narrow beamwidth generated by the highly directional antenna reduces interference. The small wavelength of THz signals allows for a much larger number of antenna elements to be integrated into devices and base stations operating in this band. This enables the use of advanced adaptive array technologies to overcome range limitations.

[0051] - Large-scale MIMO technology

[0052] - Hologram beamforming (HBF)

[0053] - Optical wireless technology

[0054] - Free-space optical transmission backhaul network (FSO backhaul network)

[0055] - Quantum communication

[0056] - Cell-free communication

[0057] - Integration of wireless information and power transmission

[0058] - Integration of wireless communication and sensing

[0059] - Integrated access and backhaul network

[0060] - Big data analysis

[0061] - Reconfigurable intelligent surface

[0062] - metaverse

[0063] - Blockchain

[0064] Unmanned aerial vehicles (UAVs): UAVs, or drones, will be a key element in 6G wireless communications. In most cases, high-speed data wireless connectivity can be provided using UAV technology. Base stations (BSs) can be installed on UAVs to provide cellular connectivity. UAVs may offer specific capabilities not found in fixed BS infrastructure, such as easy deployment, robust line-of-sight links, and controlled mobility. During emergencies such as natural disasters, deploying terrestrial communications infrastructure is not economically feasible and sometimes cannot provide services in volatile environments. UAVs can easily handle these situations. UAVs will become a new paradigm in wireless communications. This technology facilitates three fundamental requirements for wireless networks: enhanced mobile broadband (eMBB), URLLC, and mMTC. UAVs can also support various purposes, such as enhancing network connectivity, fire detection, disaster emergency services, security and surveillance, pollution monitoring, parking monitoring, and accident monitoring. Therefore, UAV technology is recognized as one of the most important technologies for 6G communications.

[0065] - Advanced air mobility (AAM): AAM is a higher concept than urban air mobility (UAM), which is an air transportation method available in urban areas, and can refer to a means of transportation that includes movement between regional hubs as well as within urban areas.

[0066] - Autonomous driving (self-driving): V2X (vehicle to everything), a key element in building autonomous driving infrastructure, can be a technology that allows cars to communicate and share with various elements on the road for autonomous driving, such as vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) wireless communication. Fast transmission speeds and low-latency technologies are essential to maximize autonomous driving performance and ensure high safety. Furthermore, in the future, autonomous driving will go beyond simply providing warnings or guidance messages to drivers and may require active intervention in vehicle operation and direct control of the vehicle in dangerous situations. To this end, the amount of information that needs to be transmitted and received may become enormous, so 6G is expected to maximize autonomous driving with faster transmission speeds and lower latency than 5G.

[0067] - Non-terrestrial networks (NTN): NTN may refer to a network or network segment that uses radio frequency (RF) resources mounted on a satellite (or unmanned aerial system (UAS) platform). FIG. 3 illustrates an example of a typical NTN scenario based on a transparent payload according to an embodiment of the present disclosure. FIG. 4 illustrates an example of a typical NTN scenario based on a regenerative payload according to an embodiment of the present disclosure. The embodiments of FIG. 3 or FIG. 4 may be combined with various embodiments of the present disclosure. Referring to FIG. 3, a satellite (or UAS platform) may create a service link with a UE. The satellite (or UAS platform) may be connected to a gateway via a feeder link. The satellite may be connected to a data network via the gateway. A beam footprint may refer to an area where a signal transmitted by a satellite can be received. Referring to Figure 4, a satellite (or UAS platform) can establish a service link with a UE. A satellite (or UAS platform) connected to a UE can be connected to another satellite (or UAS platform) via an inter-satellite link (ISL). The other satellite (or UAS platform) can be connected to a gateway via a feeder link. Based on the playback payload, a satellite can be connected to a data network through another satellite and the gateway. If an ISL does not exist between a satellite and another satellite, a feeder link between the satellite and the gateway may be required. Figures 3 and 4 are merely examples of NTN scenarios, and NTN can be implemented based on various scenarios.For example, a satellite (or UAS platform) may implement a transparent or regenerative (with onboard processing) payload. For example, a satellite (or UAS platform) may generate multiple beams over a designated service area depending on the field of view of the satellite (or UAS platform). For example, the field of view of the satellite (or UAS platform) may vary depending on the onboard antenna diagram and minimum elevation angle. For example, a transparent payload may include radio frequency filtering, frequency conversion, and amplification. Therefore, the waveform signal repeated by the payload may not be altered. For example, a regenerative payload may include radio frequency filtering, frequency conversion and amplification, demodulation / decoding, switching and / or routing, and coding / modulation. For example, a regenerative payload may be substantially equivalent to equipping the satellite (or UAS platform) with all or part of the base station functionality.

[0068] - Integrated Sensing and Communication (ISAC): Wireless sensing is a technology that uses radio frequencies to determine the instantaneous linear velocity, angle, distance (range), etc. of an object, thereby obtaining information about the characteristics of the environment and / or objects within the environment. Because radio frequency sensing does not require a device to connect to the object through a network, it can provide a service for object positioning without a device. The ability to obtain range, velocity, and angle information from radio frequency signals can enable a wide range of new capabilities, such as various object detection, object recognition (e.g., vehicles, humans, animals, UAVs), and high-precision localization, tracking, and activity recognition. Wireless sensing services can provide information to a variety of industries (e.g., drones, smart homes, V2X, factories, railways, public safety, etc.), enabling applications such as intruder detection, assisted vehicle steering and navigation, trajectory tracking, collision avoidance, traffic management, and health and traffic management. In some cases, wireless sensing can utilize non-3GPP type sensors (e.g., radar, cameras) to further support 3GPP-based sensing. For example, the operation of a wireless sensing service, i.e., a sensing operation, may depend on the transmission, reflection, and scattering of wireless sensing signals. Therefore, wireless sensing may provide an opportunity to enhance existing communication systems from a communication network to a wireless communication and sensing network. FIG. 5 illustrates an example of a sensing operation according to an embodiment of the present disclosure. The embodiment of FIG. 5 may be combined with various embodiments of the present disclosure. Specifically, FIG. 5 (a) illustrates an example of sensing using a sensing receiver and a sensing transmitter located at the same location (e.g., monostatic sensing), and FIG. 5 (b) illustrates an example of sensing using a separated sensing receiver and a sensing transmitter (e.g., bistatic sensing).

[0069] The layers of the radio interface protocol between the terminal and the network can be divided into L1 (layer 1), L2 (layer 2), and L3 (layer 3) based on the three lower layers of the Open System Interconnection (OSI) standard model, which is widely known in communication systems. Among these, the physical layer belonging to layer 1 provides an information transfer service using a physical channel, and the RRC (Radio Resource Control) layer located in layer 3 controls radio resources between the terminal and the network. To this end, the RRC layer exchanges RRC messages between the terminal and the base station.

[0070] The physical layer provides information transmission services to higher layers using physical channels. The physical layer is connected to the upper layer, the Medium Access Control (MAC) layer, via a transport channel. Data travels between the MAC layer and the physical layer through the transport channel. Transport channels are classified based on how and with what characteristics data is transmitted over the wireless interface.

[0071] Data travels between different physical layers, i.e., between the physical layers of a transmitter and a receiver, via a physical channel. This physical channel can be modulated using Orthogonal Frequency Division Multiplexing (OFDM) and utilizes time and frequency as radio resources.

[0072] The MAC layer provides services to the upper layer, the radio link control (RLC) layer, through logical channels. The MAC layer provides mapping from multiple logical channels to multiple transport channels. Furthermore, the MAC layer provides logical channel multiplexing, which maps multiple logical channels to a single transport channel. The MAC sublayer provides data transmission services on logical channels.

[0073] The RLC layer performs the concatenation, segmentation, and reassembly of RLC Service Data Units (SDUs). To guarantee the various Quality of Service (QoS) required by radio bearers (RBs), the RLC layer provides three operating modes: Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM). AM RLC provides error correction through automatic repeat request (ARQ).

[0074] The RRC (Radio Resource Control) layer is defined only in the control plane. The RRC layer is responsible for controlling logical channels, transport channels, and physical channels, related to the configuration, reconfiguration, and release of radio bearers. RB refers to a logical path provided by Layer 1 (physical layer or PHY layer) and Layer 2 (MAC layer, RLC layer, Packet Data Convergence Protocol (PDCP) layer, and Service Data Adaptation Protocol (SDAP) layer) for data transmission between the terminal and the network.

[0075] The functions of the PDCP layer in the user plane include the transmission of user data, header compression, and ciphering. The functions of the PDCP layer in the control plane include the transmission of control plane data and encryption / integrity protection.

[0076] The Service Data Adaptation Protocol (SDAP) layer is defined only in the user plane. It performs mapping between QoS flows and data radio bearers, marking QoS flow identifiers (IDs) within downlink and uplink packets, and more.

[0077] Establishing an RB refers to the process of defining the characteristics of the radio protocol layer and channel to provide a specific service, and setting specific parameters and operating methods for each. RBs can be further divided into two types: the Signaling Radio Bearer (SRB) and the Data Radio Bearer (DRB). The SRB is used as a channel to transmit RRC messages in the control plane, while the DRB is used as a channel to transmit user data in the user plane.

[0078] When an RRC connection is established between the RRC layer of the terminal and the RRC layer of the base station, the terminal is in the RRC_CONNECTED state. Otherwise, it is in the RRC_IDLE state. For NR, the RRC_INACTIVE state is additionally defined, and a terminal in the RRC_INACTIVE state can maintain a connection with the core network while releasing the connection with the base station.

[0079] Downlink transmission channels that transmit data from the network to the terminal include the Broadcast Channel (BCH), which transmits system information, and the downlink Shared Channel (SCH), which transmits user traffic or control messages. Traffic or control messages for downlink multicast or broadcast services may be transmitted through the downlink SCH or a separate downlink Multicast Channel (MCH). Meanwhile, uplink transmission channels that transmit data from the terminal to the network include the Random Access Channel (RACH), which transmits initial control messages, and the uplink Shared Channel (SCH), which transmits user traffic or control messages.

[0080] Logical channels that are located above the transport channel and are mapped to the transport channel include the Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), Common Control Channel (CCCH), Multicast Control Channel (MCCH), and Multicast Traffic Channel (MTCH).

[0081] Radio frames can be used for uplink and downlink transmission. A radio frame has a length of 10 ms and can be defined as two 5 ms half-frames (HF). A half-frame can contain five 1 ms subframes (SF). A subframe can be divided into one or more slots, and the number of slots within a subframe can be determined by the subcarrier spacing (SCS). Each slot can contain 12 or 14 OFDM (A) symbols, depending on the cyclic prefix (CP).

[0082] When normal CP is used, each slot can contain 14 symbols. When extended CP is used, each slot can contain 12 symbols. Here, the symbols can include OFDM symbols (or CP-OFDM symbols), SC-FDMA (Single Carrier - FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0083] Table 2 below shows the number of symbols per slot (N) depending on the SCS setting (u) when normal CP or extended CP is used. slot symb ), number of slots per frame (N frame,u slot ) and the number of slots per subframe (N subframe,u slot ) is an example.

[0084] CP type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP15kHz (u=0)1410130kHz (u=1)1420260kHz (u=2)14404120kHz (u=3)14808240kHz (u=4)1416016Extended CP60kHz (u=2)12404

[0085] FIG. 6 illustrates a slot structure of a frame according to an embodiment of the present disclosure. The embodiment of FIG. 6 can be combined with various embodiments of the present disclosure.

[0086] Referring to FIG. 6, a slot includes a plurality of symbols in the time domain. A carrier includes a plurality of subcarriers in the frequency domain. An RB (Resource Block) may be defined as a plurality (e.g., 12) of consecutive subcarriers in the frequency domain. A BWP (Bandwidth Part) may be defined as a plurality of consecutive (P)RBs ((Physical) Resource Blocks) in the frequency domain, and may correspond to one numerology (e.g., SCS, CP length, etc.). A carrier may include up to N (e.g., 5) BWPs. Data communication may be performed through activated BWPs. Each element may be referred to as a Resource Element (RE) in the resource grid, and one complex symbol may be mapped to it.

[0087] A Bandwidth Part (BWP) can be a contiguous set of physical resource blocks (PRBs) for a given numerology. A PRB can be selected from a contiguous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0088] FIG. 7 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 7 can be combined with various embodiments of the present disclosure. In the embodiment of FIG. 7, it is assumed that there are three BWPs.

[0089] Referring to Figure 7, a common resource block (CRB) may be a carrier resource block numbered from one end of a carrier band to the other. Furthermore, a PRB may be a numbered resource block within each BWP. Point A may indicate a common reference point for the resource block grid.

[0090] BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP ) can be set by. For example, point A can be an outer reference point of the PRB of a carrier where subcarrier 0 of all numerologies (e.g., all numerologies supported by the network on that carrier) are aligned. For example, the offset can be the PRB spacing between the lowest subcarrier in a given numerology and point A. For example, the bandwidth can be the number of PRBs in a given numerology.

[0091] SLSS (Sidelink Synchronization Signal) is a SL (sidelink) specific sequence and may include PSSS (Primary Sidelink Synchronization Signal) and SSSS (Secondary Sidelink Synchronization Signal). The PSSS may be referred to as S-PSS (Sidelink Primary Synchronization Signal) and the SSSS may be referred to as S-SSS (Sidelink Secondary Synchronization Signal). For example, length-127 M-sequences may be used for S-PSS and length-127 Gold sequences may be used for S-SSS. For example, a terminal may detect an initial signal (signal detection) and obtain synchronization using S-PSS. For example, the terminal can obtain detailed synchronization using S-PSS and S-SSS and detect a synchronization signal ID.

[0092] PSBCH (Physical Sidelink Broadcast Channel) may be a (broadcast) channel that transmits basic (system) information that a terminal must know first before transmitting or receiving an SL signal. For example, the basic information may be information related to SLSS, duplex mode (DM), TDD UL / DL (Time Division Duplex Uplink / Downlink) configuration, resource pool-related information, 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 may be 56 bits, including a 24-bit CRC (Cyclic Redundancy Check).

[0093] S-PSS, S-SSS and PSBCH may be included in a block format supporting periodic transmission (e.g., SL SS (Synchronization Signal) / PSBCH block, hereinafter referred to as S-SSB (Sidelink-Synchronization Signal Block)). The S-SSB may have the same numerology (i.e., SCS and CP length) as the PSCCH (Physical Sidelink Control Channel) / PSSCH (Physical Sidelink Shared Channel) in the carrier, and the transmission bandwidth may be within a (pre-)configured SL BWP (Sidelink BWP). For example, the bandwidth of the S-SSB may be 11 RBs (Resource Blocks). For example, the PSBCH may span 11 RBs. And, the frequency location of the S-SSB may be (pre-)configured. Therefore, the terminal does not need to perform hypothesis detection in the frequency to discover the S-SSB in the carrier.

[0094] In this specification, PSCCH may be replaced by a control channel, a physical control channel, a sidelink-related control channel, a sidelink-related physical control channel, etc. In this specification, PSSCH may be replaced by a shared channel, a physical shared channel, a sidelink-related shared channel, a sidelink-related physical shared channel, etc.

[0095] FIG. 8 illustrates a procedure for a terminal to perform V2X or SL communication according to a resource allocation mode, according to one embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure.

[0096] Referring to (a) of FIG. 8, in resource allocation mode 1, the base station may schedule SL resources to be used by the terminal for SL transmission. For example, in step S800, the base station may transmit information related to SL resources and / or information related to UL resources to the first terminal. For example, the UL resources may include PUCCH resources and / or PUSCH resources. For example, the UL resources may be resources for reporting SL HARQ feedback to the base station.

[0097] For example, a first terminal may receive information related to a dynamic grant (DG) resource and / or information related to a configured grant (CG) resource from a base station. For example, a CG resource may include a CG type 1 resource or a CG type 2 resource. In this specification, a DG resource may be a resource that a base station configures / allocates to the first terminal via downlink control information (DCI). In this specification, a CG resource may be a (periodic) resource that a base station configures / allocates to the first terminal via DCI and / or an RRC message. For example, in the case of a CG type 1 resource, the base station may transmit an RRC message including information related to the CG resource to the first terminal. For example, in the case of a CG type 2 resource, the base station may transmit an RRC message including information related to the CG resource to the first terminal, and the base station may transmit a DCI related to activation or release of the CG resource to the first terminal.

[0098] In step S810, the first terminal may transmit a PSCCH (e.g., Sidelink Control Information (SCI) or 1st-stage SCI) to the second terminal based on the resource scheduling. In step S820, the first terminal may transmit a PSSCH (e.g., 2nd-stage SCI, MAC PDU, data, etc.) related to the PSCCH to the second terminal. In step S830, the first terminal may receive a PSFCH related to the PSCCH / PSSCH from the second terminal. For example, HARQ feedback information (e.g., NACK information or ACK information) may be received from the second terminal via the PSFCH. In step S840, the first terminal may transmit / report HARQ feedback information to the base station via a PUCCH or a PUSCH. For example, the HARQ feedback information reported to the base station may be information generated by the first terminal based on the HARQ feedback information received from the second terminal. For example, the HARQ feedback information reported to the base station may be information generated by the first terminal based on a rule set in advance. For example, the DCI may be DCI for scheduling of SL. For example, the format of the DCI may be DCI format 3_0 or DCI format 3_1.

[0099] Below, an example of DCI format 3_0 is described.

[0100] DCI format 3_0 is used for scheduling NR PSCCH and NR PSSCH in one cell.

[0101] The following information is transmitted via DCI format 3_0 with CRC scrambled by SL-RNTI or SL-CS-RNTI.

[0102] - Resource Pool Index - ceiling (log2I) bits, where I is the number of resource pools for transmission, set by the upper layer parameter sl-TxPoolScheduling.

[0103] - Time gap - 3 bits determined by the upper layer parameter sl-DCI-ToSL-Trans

[0104] - HARQ process number - 4 bits

[0105] - New data indicator - 1 bit

[0106] - Lowest index of subchannel allocation for initial transmission - ceiling (log2(N SL subChannel)) bit

[0107] - SCI Format 1-A Field: Frequency Resource Allocation, Time Resource Allocation

[0108] - PSFCH-to-HARQ feedback timing indicator - ceiling (log2N fb_timing ) bits, where N fb_timing is the number of entries of the upper layer parameter sl-PSFCH-ToPUCCH.

[0109] - PUCCH resource indicator - 3 bits

[0110] - Configuration Index - 0 bit if the UE is not configured to monitor DCI format 3_0 with CRC scrambled by SL-CS-RNTI; otherwise, 3 bits. If the UE is configured to monitor DCI format 3_0 with CRC scrambled by SL-CS-RNTI, this field is reserved for DCI format 3_0 with CRC scrambled by SL-RNTI.

[0111] - Counter sidelink allocation index - 2 bits, 2 bits if the UE is set to pdsch-HARQ-ACK-Codebook = dynamic, 2 bits if the UE is set to pdsch-HARQ-ACK-Codebook = semi-static

[0112] - Padding bits if needed

[0113] Referring to (b) of FIG. 8, in resource allocation mode 2, the terminal can determine SL transmission resources within SL resources set by the base station / network or preset SL resources. For example, the set SL resources or preset SL resources may be a resource pool. For example, the terminal can autonomously select or schedule resources for SL transmission. For example, the terminal can perform SL communication by selecting resources by itself within the set resource pool. For example, the terminal can select resources by itself within a selection window by performing sensing and resource (re)selection procedures. For example, the sensing can be performed on a subchannel basis. For example, in step S810, the first terminal that has selected resources by itself within the resource pool transmits PSCCH (e.g., SCI (Sidelink Control Information) or 1) using the resources. st -stage SCI) can be transmitted to the second terminal. In step S820, the first terminal transmits the PSSCH (e.g., 2) related to the PSCCH. nd -stage SCI, MAC PDU, data, etc.) can be transmitted to the second terminal. In step S830, the first terminal can receive a PSFCH related to the PSCCH / PSSCH from the second terminal.

[0114] Referring to (a) or (b) of FIG. 8, for example, a first terminal may transmit an SCI to a second terminal on a PSCCH. Or, for example, the first terminal may transmit two consecutive SCIs (e.g., 2-stage SCIs) to the second terminal on the PSCCH and / or the PSSCH. In this case, the second terminal may decode the two consecutive SCIs (e.g., 2-stage SCIs) to receive the PSSCH from the first terminal. In the present specification, an SCI transmitted on a PSCCH is 1 st SCI, 1st SCI, 1 st -stage SCI or 1 st -stage SCI format, and the SCI transmitted on the PSSCH is 2 nd SCI, 2nd SCI, 2 nd -stage SCI or 2 nd -It can be called a stage SCI format.

[0115] For example, 1 st -stage SCI format may include SCI format 1-A and / or SCI format 1-B, and 2 nd -stage SCI formats may include SCI Format 2-A, SCI Format 2-B, SCI Format 2-C, and / or SCI Format 2-D.

[0116] Below, an example of SCI format 1-A is described.

[0117] SCI Format 1-A is a 2-bit format on the PSSCH and PSSCH nd -stage is used for scheduling SCI.

[0118] The following information is transmitted using SCI Format 1-A.

[0119] - Priority - 3 bits

[0120] - Frequency resource allocation - If the value of the upper layer parameter sl-MaxNumPerReserve is set to 2, then ceiling (log2(N SL subChannel(N SL subChannel+1) / 2)) bits; otherwise, if the value of the upper layer parameter sl-MaxNumPerReserve is set to 3, ceiling log2(N SL subChannel(N SL subChannel+1)(2N SL subChannel+1) / 6) bits

[0121] - Time resource allocation - 5 bits if the value of the upper layer parameter sl-MaxNumPerReserve is set to 2; otherwise, 9 bits if the value of the upper layer parameter sl-MaxNumPerReserve is set to 3.

[0122] - Resource reservation cycle - ceiling (log2N) rsv_period ) bits, where N rsv_period The number of entries in the upper layer parameter sl-ResourceReservePeriodList if the upper layer parameter sl-MultiReserveResource is set; otherwise, 0 bits.

[0123] - DMRS pattern - ceiling (log2N pattern ) bits, where N pattern is the number of DMRS patterns set by the upper layer parameter sl-PSSCH-DMRS-TimePatternList.

[0124] - 2 nd -stage SCI format - 2 bits

[0125] - Beta_Offsets indicator - 2 bits as provided by the upper layer parameter sl-BetaOffsets2ndSCI

[0126] - Number of DMRS ports - 1 bit

[0127] - Modulation and coding method - 5 bits

[0128] - Additional MCS table indicator - 1 bit if one MCS table is set by the upper layer parameter sl-Additional-MCS-Table; 2 bits if two MCS tables are set by the upper layer parameter sl-Additional-MCS-Table; otherwise 0 bits

[0129] - PSFCH Overhead Indicator - 1 bit if the upper layer parameter sl-PSFCH-Period = 2 or 4; otherwise 0 bit

[0130] - Reserved bits - The number of bits determined by the upper layer parameter sl-NumReservedBits, whose value is set to 0.

[0131] Below, an example of SCI format 2-A is described.

[0132] In HARQ operation, when HARQ-ACK information contains ACK or NACK, or when HARQ-ACK information contains only NACK, or when there is no feedback of HARQ-ACK information, SCI format 2-A is used for decoding PSSCH.

[0133] The following information is transmitted via SCI Format 2-A.

[0134] - HARQ process number - 4 bits

[0135] - New data indicator - 1 bit

[0136] - Redundancy version - 2 bits

[0137] - Source ID - 8 bits

[0138] - Destination ID - 16 bits

[0139] - HARQ feedback enable / disable indicator - 1 bit

[0140] - Cast type indicator - 2 bits as defined in Table 3

[0141] - CSI request - 1 bit

[0142] Cast Type Indicator ValueCast Type00Broadcast01Groupcast if HARQ-ACK information contains ACK or NACK10Unicast11Groupcast if HARQ-ACK information contains only NACK

[0143] Below, an example of SCI format 2-B is described.

[0144] In HARQ operation, when HARQ-ACK information contains only NACK or there is no feedback of HARQ-ACK information, SCI format 2-B is used for decoding PSSCH.

[0145] The following information is transmitted via SCI Format 2-B.

[0146] - HARQ process number - 4 bits

[0147] - New data indicator - 1 bit

[0148] - Redundancy version - 2 bits

[0149] - Source ID - 8 bits

[0150] - Destination ID - 16 bits

[0151] - HARQ feedback enable / disable indicator - 1 bit

[0152] - Zone ID - 12 bits

[0153] - Communication range requirement - 4 bits determined by the upper layer parameter sl-ZoneConfigMCR-Index

[0154] Referring to (a) or (b) of FIG. 8, in step S830, the first terminal may receive a PSFCH. For example, the first terminal and the second terminal may determine PSFCH resources, and the second terminal may transmit HARQ feedback to the first terminal using the PSFCH resources.

[0155] Referring to (a) of FIG. 8, in step S840, the first terminal may transmit SL HARQ feedback to the base station via PUCCH and / or PUSCH.

[0156] Below, the HARQ (Hybrid Automatic Repeat Request) procedure is described.

[0157] For example, SL HARQ feedback can be enabled for unicast. For example, SL HARQ feedback can be enabled for groupcast. For example, two HARQ feedback options can be supported for groupcast.

[0158] (1) Groupcast Option 1: If a receiving terminal fails to decode a transport block associated with the PSCCH after decoding a PSCCH targeting the receiving terminal, the receiving terminal may transmit a negative acknowledgment (NACK) to the transmitting terminal via a PSFCH. On the other hand, if the receiving terminal decodes a PSCCH targeting the receiving terminal and successfully decodes a transport block associated with the PSCCH, the receiving terminal may not transmit a positive acknowledgment (ACK) to the transmitting terminal.

[0159] (2) Groupcast Option 2: If the receiving terminal fails to decode a transport block associated with the PSCCH after decoding the PSCCH targeting the receiving terminal, the receiving terminal can transmit a NACK to the transmitting terminal via the PSFCH. In addition, if the receiving terminal decodes the PSCCH targeting the receiving terminal and successfully decodes the transport block associated with the PSCCH, the receiving terminal can transmit an ACK to the transmitting terminal via the PSFCH.

[0160] Below, the UE procedure for reporting HARQ-ACK on the sidelink is described.

[0161] In response to receiving the PSSCH, the UE transmits a PSFCH containing HARQ-ACK information, N PSSCH subch The SCI format may be indicated by scheduling PSSCH reception on one or more subchannels from the subchannel number. The UE provides HARQ-ACK information including ACK, NACK, or NACK only.

[0162] The UE may be provided with the number of slots in the resource pool for PSFCH transmission occasion resources by sl-PSFCH-Period-r16. If the number is 0, PSFCH transmission from the UE in the resource pool is disabled. The UE may be provided with k mod N PSFCH PSSCH = 0 if slot t' k SL (0 ≤ k < T' max ) is expected to have PSFCH transmission opportunity resources, where t' k SL is a slot belonging to the resource pool, and T' max is the number of slots belonging to the resource pool within 10240 msec, and N PSFCH PSSCHis provided in sl-PSFCH-Period-r16. The UE may be instructed by upper layers not to transmit a PSFCH in response to a PSSCH reception. When the UE receives a PSSCH from a resource pool and the HARQ Feedback Enable / Disable indicator field included in the associated SCI Format 2-A or SCI Format 2-B has a value of 1, the UE provides HARQ-ACK information via a PSFCH transmission from the resource pool. The UE transmits the PSFCH in a first slot, wherein the first slot includes a PSFCH resource and is a slot after the minimum number of slots provided by sl-MinTimeGapPSFCH-r16 of the resource pool after the last slot of the PSSCH reception.

[0163] The UE selects a set M of PRBs within the resource pool for PSFCH transmission in the PRBs of the resource pool. PSFCH PRB,set is provided by sl-PSFCH-RB-Set-r16. The number of subchannels N for the resource pool provided by sl-NumSubchannel subch and N PSFCH PSSCH For the number of PSSCH slots associated with PSFCH slots less than or equal to M, the UE PRB,set PSFCH Among PRBs, [(i+j·N PSFCH PSSCH )·M PSFCH subch,slot, (i+1+j·N PSFCH PSSCH )·M PSFCH [subch,slot-1] PRB is allocated to slot i and subchannel j among the PSSCH slots linked to the PSFCH slot. Here, M PSFCH subch,slot= M PSFCH PRB,set / (N subch ·N PSFCH PSSCH ), 0 ≤ i < N PSFCH PSSCH , 0 ≤ j < Nsubch , and the assignment starts in ascending order of i and continues in ascending order of j. UE is M PSFCH PRB,set Go N subch ·N PSFCH PSSCH It is expected to be a multiple of .

[0164] The UE determines the number of available PSFCH resources for multiplexing HARQ-ACK information included in the PSFCH transmission. PSFCH PRB,CS = N PSFCH type ·M PSFCH subch,slot·N PSFCH CS is determined by . Here, N PSFCH CS is the number of cyclic shift pairs for the resource pool, and based on instructions from the upper layer,

[0165] - N PSFCH type = 1 and M PSFCH subch,slotPRB is associated with the starting subchannel of the corresponding PSSCH,

[0166] - N PSFCH type = N PSSCH subch Ego and N PSSCH subch ·M PSFCH subch,slotPRB is the N of the corresponding PSSCH PSSCH subch Associated with one or more subchannels among the subchannels.

[0167] PSFCH resources are first N PSFCH type ·M PSFCH subch, slotPRB are indexed in ascending order of PRB index, then N PSFCH CS Among the cyclic shift pairs, they are indexed in ascending order of the cyclic shift pair index.

[0168] The UE, in response to receiving the PSSCH, sends an index of the PSFCH resource for PSFCH transmission (P ID + M ID ) mod R PSFCH PRB,CS is determined by . Here, P ID is the physical layer source ID provided by SCI format 2-A or 2-B for scheduling PSSCH reception, and M ID is the ID of the UE receiving the PSSCH indicated by the upper layer if the UE detects SCI format 2-A with the Cast Type Indicator field value of "01", otherwise M ID is 0.

[0169] UE uses Table 4 to N PSFCH CS Determine the m0 value for calculating the cyclic shift α value from the cyclic shift pair index corresponding to the PSFCH resource index.

[0170] N PSFCH CS m0 cyclic shift pair index 0 cyclic shift pair index 1 cyclic shift pair index 2 cyclic shift pair index 3 cyclic shift pair index 4 cyclic shift pair index 510-----203----3024---6012345

[0171] If the UE detects SCI format 2-A with a cast type indicator field value of "01" or "10" as in Table 5, or if the UE detects SCI format 2-B or SCI format 2-A with a cast type indicator field value of "11" as in Table 6, the UE calculates the value m for calculating the cyclic shift α value. cs The UE applies one cyclic shift from among the cyclic shift pairs to the sequence used for PSFCH transmission.

[0172] HARQ-ACK value 0 (NACK) 1 (ACK) Sequence cyclic shift 06

[0173] HARQ-ACK value 0 (NACK) 1 (ACK) Sequence cyclic shift 0 N / A

[0174] For example, the radio channel between an advanced air mobility (AAM) terminal and other terminal(s) (and / or base station(s)) is very likely to have line of sight (LOS) characteristics (due to the high altitude of the AAM terminal). For example, this may result in a (significantly) long distance between the AAM terminal and other terminal(s) (and / or base station(s)) for which a radio communication quality above a critical level is guaranteed. In this case, the propagation delay may be (relatively) long.

[0175] For example, if the propagation delay is (relatively) long, ambiguity may arise in cyclic shift detection. For example, due to a (relatively) long propagation delay between a TX UE and a RX UE, the TX UE may be confused about the cyclic shift applied to the feedback channel transmitted by the RX UE. In this case, for example, the TX UE may perform unnecessary retransmission operations (e.g., when (actually) the RX UE transmitted ACK information but the TX UE misinterprets it as NACK information, or when (actually) the RX UE transmitted ACK information but the TX UE does not detect the cyclically shifted PSFCH that it expects to be transmitted by the RX UE), or the TX UE may terminate or flush the associated HARQ process (e.g., when (actually) the RX UE transmitted NACK information but the TX UE misinterprets it as ACK information).

[0176] For example, based on (some or all) of the rules below, when the same (time and / or frequency) resource region (e.g., resource pool) is used / shared between an AAM terminal and other types of terminal(s) (e.g., general SL terminals, terminals performing SL communication at (relatively) low altitudes) (and / or when individually allocated resource regions (e.g., resource pools) with some overlapping resources (and / or overlapping resources of specific usage / channels (e.g., PSFCH)) are used), an efficient coexistence method and a device supporting the same are proposed.

[0177] For example, in the present disclosure, a TX UE may be interpreted as a UE performing data transmission (e.g., PSCCH / PSSCH) (to a (target) RX UE), and / or a UE performing SL CSI-RS (and / or SL CSI Report Request Indicator) transmission (to the (target) RX UE), and / or a UE performing (predefined) RS transmission (e.g., PSSCH DM-RS) (and / or SL (L1) RSRP Report Request Indicator) to be used for SL (L1) RSRP measurement (to the (target) RX UE), and / or a UE transmitting a (control) channel (e.g., PSCCH, PSSCH) and / or an RS (e.g., DM-RS, CSI-RS) (on the (control) channel) to be used for SL RLM (radio link monitoring) (and / or SL RLF (radio link failure)) operation (of the (target) RX UE).

[0178] For example, in the present disclosure, an RX UE may be interpreted as a UE transmitting SL HARQ feedback (to a TX UE) based on whether decoding of data received from a TX UE is successful (and / or whether detection / decoding of a PSCCH (related to PSSCH scheduling) transmitted by the TX UE is successful), and / or a UE performing SL CSI transmission (to the TX UE) based on an SL CSI-RS (and / or an SL CSI Report Request Indicator) received from the TX UE, and / or a UE transmitting an SL (L1) RSRP measurement value (to the TX UE) based on an (predefined) RS (and / or an SL (L1) RSRP Report Request Indicator) received from the TX UE, and / or a UE performing its own data transmission (to the TX UE), and / or a UE performing an RLM (and / or RLF) operation based on a (predefined) (control) channel and / or an RS (on the (control) channel) received from the TX UE.

[0179] For example, in the present disclosure, the term "PSCCH" may be extended to mean SCI (and / or first SCI (or second SCI) and / or PSSCH). For example, in the present disclosure, the term "SCI" ​​may be extended to mean PSCCH (and / or first SCI (or second SCI) and / or PSSCH). For example, in the present disclosure, the term "PSSCH" may be extended to mean second SCI (and / or PSCCH).

[0180] For example, in this disclosure, the term "configuration (or definition)" may be interpreted as being (pre-)configured (resource pool-specifically) from a base station (or network) (via pre-defined signaling (e.g., SIB, MAC, RRC)). For example, in this disclosure, the term "configuration (or definition)" may be interpreted as being specified between terminals via pre-defined signaling (e.g., PC5 RRC). For example, in this disclosure, the term "RLF" may be mutually extended to be interpreted as at least one of OOS (out-of-synch) or IS (in-synch). For example, in this disclosure, the term "RB" may be mutually extended to be interpreted as subcarrier. For example, in this disclosure, the term "packet (or traffic)" may be mutually extended to be interpreted as TB (transport block) (or MAC PDU). For example, in this disclosure, the term "CBG (code block group) (or CG)" may be mutually extended to be interpreted as TB. For example, in the present disclosure, the term "source ID" can be extendedly interpreted as "destination ID". For example, in the present disclosure, the term "L1 ID" can be extendedly interpreted as "L2 ID". For example, in the present disclosure, the term "retransmission resource reservation / selection" can be extendedly interpreted as reservation / selection of potential retransmission resources, the actual use of which is determined based on SL HARQ feedback information. For example, in the present disclosure, the term "sub-selection window" can be extendedly interpreted as selection window (and / or a set of resources in advance within the selection window). For example, in the present disclosure, "SL mode 1 operation" can mean a case where a base station directly schedules SL transmission resources of a terminal through predefined signaling (e.g., DCI), and "SL mode 2 operation" can mean a case where a terminal independently selects SL transmission resources from a predefined resource pool (from a base station or a network).For example, in this disclosure, the term "dynamic grant" can be extended to mean a configured (or SPS) grant (or a combination of a configured (or SPS) grant and a dynamic grant). For example, in this disclosure, the term "configured grant" can be extended to mean a "type 1 configured grant" (or a "type 2 configured grant"). For example, in this disclosure, the term "channel" can be extended to mean a "signal". For example, in this disclosure, the term "cast (type)" can be extended to mean "unicast (and / or groupcast and / or broadcast)". For example, in this disclosure, the term "resource" can be extended to mean "slot" (or "symbol"). For example, in the present disclosure, the term "priority" may be extended to mean "logical channel prioritization (LCP)" (and / or "latency" and / or "reliability" and / or "minimum required communication range" and / or "ProSe Per-Packet Priority (PPPP)" and / or "priority" and / or "SLRB" and / or "QoS profile / parameter" and / or "requirement").

[0181] For example, between an AAM terminal and other types of terminal(s) (and / or between different types of terminals and / or between different service-related terminals and / or between different (L1 and / or L2) destination IDs (and / or source IDs) and / or between different altitude-related resource areas (e.g., resource pools)), the PSFCH resource-related (PSFCH) RB sets used for (transmission and / or reception) purposes such as SL HARQ feedback (and / or IUC (inter-UE coordination) information indication (e.g., conflict indicator)) may be independently (or differently) configured (e.g., in the form of FDM of the PSFCH RB sets on the same symbol / slot), and / or the PSFCH resources may be configured to not overlap in the time domain (e.g., in the form of TDM) (and / or the resource pools (including the PSFCH resources) are configured to not overlap in the time domain, and / or if the resource pools (including the PSFCH resources) overlap in the time domain, they are configured to not overlap in the frequency domain). Here, for example, the following (some or all) parameters can also be independently (or differently) set for each rule-based PSFCH resource (e.g., PSFCH RB set, PSFCH symbol / slot).

[0182] Example) CS (cyclic shift) (pair) (number and / or interval) (and / or number of PSFCH RBs and / or PSFCH resource period and / or time interval between initial transmission and PSFCH resource)

[0183] Example) Transmit power related parameters (e.g., maximum (allowable) transmit power value, SL PL (pathloss) (and / or DL ​​PL) based transmit power control, OLPC (open loop power control) parameter values ​​(e.g., P_O, alpha))

[0184] For example, the interval between CS values ​​related to the PSFCH RB set used by the AAM terminal may be set relatively large compared to the interval between CS values ​​related to the PSFCH RB set used by other types of terminal(s). Alternatively, for example, the interval between CS values ​​related to the PSFCH RB set used by the AAM terminal may be set relatively small compared to the interval between CS values ​​related to the PSFCH RB set used by other types of terminal(s).

[0185] Here, for example, the application of the rule can alleviate the problem that confusion / ambiguity in PSFCH CS detection may occur, causing the TX UE to perform unnecessary PSCCH / PSSCH retransmission operations (e.g., when the RX UE actually transmits ACK information but the TX UE mistakes it for NACK information), or when the RX UE actually transmits NACK information but the TX UE terminates (and flushes) the related HARQ process. For example, the proposal of the present disclosure can be extended to other SL channel / signal related RSs (e.g., PSCCH / PSSCH DMRS, PSBCH DMRS), etc., as well as PSFCH.

[0186] The various schemes of the present disclosure may be applied differently per unicast session (group) and / or per cast type and / or per transmission priority value and / or per reception priority value and / or per SL transmission with SL HARQ-ACK feedback enabled / disabled and / or per SL HARQ-ACK feedback option and / or per QoS parameter and / or per (remaining) PDB and / or per congestion control level and / or per (transmission and / or reception) resource pool and / or per UE's mobility-related information (e.g., speed, velocity, direction, acceleration, position, height, etc.) and / or per sidelink transmission or reception and / or per HARQ process and / or per beam process and / or per source ID and / or per destination ID and / or per TB. For example, in the embodiments of the present disclosure, the unit of (pre-)configuration may be configured in the form of the above different combinations. For example, in an embodiment of the present disclosure, parameter indication and management via PSCCH and / or PSSCH may be performed in units of the above different combinations. In an embodiment of the present disclosure, spatial setting and / or transmission configuration indicator (TCI) information and / or quasi-co-location (QCL) information, etc. may refer to each other and / or may be interpreted as being replaced with beam-related information, beam direction, spatial domain transmission or reception filter, etc. In an embodiment of the present disclosure, the same spatial setting information for transmission may mean that the spatial domain TX filter of the terminal is the same for two different transmission signals. In an embodiment of the present disclosure, the same spatial setting information for reception may mean that two different reception signals are in a QCL 'TYPE D' relationship and / or use the same spatial RX parameters. Various methods of the present disclosure may be applied differently for each SL channel.The various methods of the present disclosure may be applied differently depending on the type of information contained in the SL channel.

[0187] For example, service type (and / or (LCH or service) priority and / or QoS requirements (e.g., delay, reliability, minimum communication range) and / or PQI parameters) (and / or HARQ FEEDBACK ENABLED (and / or DISABLED) LCH / MAC PDU (transmission) and / or CBR measurement value of resource pool and / or SL cast type (e.g., unicast, groupcast, broadcast) and / or SL groupcast HARQ feedback options (e.g., NACK ONLY feedback, ACK / NACK feedback, TX-RX distance based NACK ONLY feedback) and / or SL mode 1 CG type (e.g., SL CG type 1 / 2) and / or SL mode type (e.g., mode 1 / 2) and / or resource pool and / or whether PSFCH resources are configured for the resource pool and / or if periodic resource reservation operation (and / or aperiodic resource reservation operation) is allowed / configured (or not allowed / configured) on the resource pool. and / or partial sensing operation (and / or random resource selection operation (and / or full sensing operation)) is allowed / configured (or not allowed / configured) on the resource pool and / or source (L2) ID (and / or destination (L2) ID) and / or PC5 RRC connection link and / or SL link and / or connection state (with base station) (e.g. RRC CONNECTED state, IDLE state,INACTIVE state) and / or SL HARQ process (ID) and / or whether SL DRX operation (of TX UE or RX UE) is performed and / or whether power saving (TX or RX) UE is performed and / or if (from a specific UE perspective) PSFCH TX and PSFCH RX overlap (and / or multiple PSFCH TXs (exceeding UE CAPABILITY)) (and / or if PSFCH TX (and / or PSFCH RX) is omitted) and / or if RX UE actually (successfully) receives PSCCH (and / or PSSCH) (re)transmission from TX UE and / or if (TX) UE performing packet transmission (and / or transmission resource (re)selection) performs power saving operation (and / or SL DRX operation) and / or if target (RX) UE of transmitted packet performs power saving operation (and / or SL DRX operation) and / or remaining For at least one (or not) of the following elements / parameters: (i) when the PDB value is above (or below) a preset threshold value and / or (ii) when an initial transmission (and / or retransmission) (TB-related) is performed and / or (iii) when an interlace-based (RB) structure is applied and / or (iv) when a (pre-set) channel access type (e.g., Type 1, Type 2A, Type 2B, Type 2C, semi-static channel occupancy) is performed and / or (iv) when transmission / reception of a (pre-set) SL channel / signal (e.g., SL SSB, PSCCH, PSSCH, PSFCH) is performed and / or (iv) when a channel access operation is performed in an unlicensed band, (ii) when a set of RBs (and / or channels and / or carriers) and / or channel occupancy time (COT) and / or TX burst and / or discovery burst,Whether the above rule is applied (and / or the parameter values ​​related to the proposed method / rule of the present disclosure) can be specifically (or differently or independently) set / allowed (and / or the application of the rule can be set / allowed in a limited manner). In addition, a combination of the proposed method (and / or the proposed rule and / or the embodiment) described in the present disclosure can be applied. In addition, in the present disclosure, the term "setting" (or "designation") can be extended to mean a form in which a base station notifies a terminal through a predefined (physical layer or higher layer) channel / signal (e.g., SIB, RRC, MAC CE) (and / or a form provided through pre-setting and / or a form in which a terminal notifies another terminal through a predefined (physical layer or higher layer) channel / signal (e.g., SL MAC CE, PC5 RRC)), etc. In addition, the term "PSFCH" in the present disclosure can be (mutually) extendedly interpreted as "(NR or LTE) PSSCH (and / or (NR or LTE) PSCCH) (and / or (NR or LTE) SL SSB (and / or UL channel / signal))". In addition, the proposed method of the present disclosure can be combined with each other and used in an extended manner (in a new form). In addition, in the present disclosure, the term "ACTIVE TIME" (and / or "ON DURATION") can be (mutually) extendedly interpreted as "ON DURATION" (and / or "ACTIVE TIME").

[0188] FIG. 9 illustrates a method for a first device to perform wireless communication according to an embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure.

[0189] Referring to FIG. 9, in step S910, the first device can obtain information related to a first cyclic shift. In step S920, the first device can perform transmission based on the information related to the first cyclic shift. For example, information related to the first cyclic shift for an aerial device can be set independently from information related to a second cyclic shift for a non-aerial device.

[0190] For example, the information related to the first cyclic shift may be information related to the number of first cyclic shift pairs for the aerial device, and the information related to the second cyclic shift may be information related to the number of second cyclic shift pairs for the non-aerial device.

[0191] For example, the information related to the first cyclic shift may be information related to an interval between the first cyclic shift pairs for the aerial device, and the information related to the second cyclic shift may be information related to an interval between the second cyclic shift pairs for the non-aerial device. For example, the interval between the first cyclic shift pairs may be set to be greater than the interval between the second cyclic shift pairs.

[0192] For example, the first set of feedback resources for the aerial device can be set independently from the second set of feedback resources for the non-aerial device.

[0193] For example, at least one of the number of first feedback resources for the aerial device or the period of the first feedback resources can be set independently of at least one of the number of second feedback resources for the non-aerial device or the period of the second feedback resources.

[0194] For example, information related to the first transmission power for the aerial device can be set independently from information related to the second transmission power for the non-aerial device. For example, information related to the first transmission power can be information related to a first maximum transmission power for the aerial device, and information related to the second transmission power can be information related to a second maximum transmission power for the non-aerial device. For example, information related to the first transmission power can be information related to a first path loss-based transmission power control for the aerial device, and information related to the second transmission power can be information related to a second path loss-based transmission power control for the non-aerial device. For example, information related to the first transmission power can be information related to a first open-loop power control for the aerial device, and information related to the second transmission power can be information related to a second open-loop power control for the non-aerial device.

[0195] For example, information related to the first cyclic shift may be related to a first destination ID, and information related to the second cyclic shift may be related to a second destination ID.

[0196] For example, information related to the first cyclic shift may be related to a first source ID, and information related to the second cyclic shift may be related to a second source ID.

[0197] For example, information related to the first cyclic shift may be related to a first resource region for a first altitude, and information related to the second cyclic shift may be related to a second resource region for a second altitude.

[0198] The proposed method can be applied to devices according to various embodiments of the present disclosure. First, the processor (102) of the first device (100) can obtain information related to a first cyclic shift. Then, the processor (102) of the first device (100) can control the transceiver (106) to perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device can be set independently from the information related to the second cyclic shift for a non-aerial device.

[0199] According to one embodiment of the present disclosure, a first device configured to perform wireless communication may be provided. For example, the first device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: obtain information related to a first cyclic shift; and perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0200] According to one embodiment of the present disclosure, a processing device configured to control a first device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: obtain information related to a first cyclic shift; and perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0201] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a first device to: obtain information related to a first cyclic shift; and perform transmission based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0202] FIG. 10 illustrates a method for a second device to perform wireless communication according to an embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure.

[0203] Referring to FIG. 10, in step S1010, the second device can obtain information related to a first cyclic shift. In step S1020, the second device can perform reception based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device can be set independently from the information related to the second cyclic shift for a non-aerial device.

[0204] For example, the information related to the first cyclic shift may be information related to the number of first cyclic shift pairs for the aerial device, and the information related to the second cyclic shift may be information related to the number of second cyclic shift pairs for the non-aerial device.

[0205] For example, the information related to the first cyclic shift may be information related to an interval between the first cyclic shift pairs for the aerial device, and the information related to the second cyclic shift may be information related to an interval between the second cyclic shift pairs for the non-aerial device. For example, the interval between the first cyclic shift pairs may be set to be greater than the interval between the second cyclic shift pairs.

[0206] For example, the first set of feedback resources for the aerial device can be set independently from the second set of feedback resources for the non-aerial device.

[0207] For example, at least one of the number of first feedback resources for the aerial device or the period of the first feedback resources can be set independently of at least one of the number of second feedback resources for the non-aerial device or the period of the second feedback resources.

[0208] For example, information related to the first transmission power for the aerial device can be set independently from information related to the second transmission power for the non-aerial device. For example, information related to the first transmission power can be information related to a first maximum transmission power for the aerial device, and information related to the second transmission power can be information related to a second maximum transmission power for the non-aerial device. For example, information related to the first transmission power can be information related to a first path loss-based transmission power control for the aerial device, and information related to the second transmission power can be information related to a second path loss-based transmission power control for the non-aerial device. For example, information related to the first transmission power can be information related to a first open-loop power control for the aerial device, and information related to the second transmission power can be information related to a second open-loop power control for the non-aerial device.

[0209] For example, information related to the first cyclic shift may be related to a first destination ID, and information related to the second cyclic shift may be related to a second destination ID.

[0210] For example, information related to the first cyclic shift may be related to a first source ID, and information related to the second cyclic shift may be related to a second source ID.

[0211] For example, information related to the first cyclic shift may be related to a first resource region for a first altitude, and information related to the second cyclic shift may be related to a second resource region for a second altitude.

[0212] The proposed method can be applied to devices according to various embodiments of the present disclosure. First, the processor (202) of the second device (200) can obtain information related to a first cyclic shift. Then, the processor (202) of the second device (200) can control the transceiver (206) to perform reception based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device can be set independently from the information related to the second cyclic shift for a non-aerial device.

[0213] According to one embodiment of the present disclosure, a second device configured to perform wireless communication may be provided. For example, the second device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the second device to: obtain information related to a first cyclic shift; and perform reception based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0214] According to one embodiment of the present disclosure, a processing device configured to control a second device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the second device to: obtain information related to a first cyclic shift; and perform reception based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0215] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a second device to: obtain information related to a first cyclic shift; and perform reception based on the information related to the first cyclic shift. For example, the information related to the first cyclic shift for an aerial device may be set independently from the information related to a second cyclic shift for a non-aerial device.

[0216] According to various embodiments of the present disclosure, between an AAM terminal and other types of terminals (and / or between different service-related terminals and / or between different (L1 and / or L2) destination IDs (and / or source IDs) and / or between different altitude-related resource regions (e.g., resource pools)), the interval between CS values ​​related to PSFCH RB sets used by the AAM terminal may be set to be relatively large compared to the interval between CS values ​​related to PSFCH RB sets used by other types of terminals, and / or the PSFCH RB sets may be set differently (on time and / or frequency resource regions), and / or the transmit power-related parameters (e.g., maximum (allowable) transmit power value, SL PL (and / or DL ​​PL)-based transmit power control, OLPC parameter values ​​(e.g., P_O, alpha)) may be set differently. Through this, the above-described problems can be alleviated, and AAM terminal communication and other types of terminal communication (e.g., general SL terminal, terminal performing SL communication at (relatively) low altitude) can coexist efficiently in the same resource area (e.g., resource pool).

[0217] The various embodiments of the present disclosure may be combined with each other.

[0218] Below, a description is given of devices to which various embodiments of the present disclosure can be applied.

[0219] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed in this document may be applied to various fields requiring wireless communication / connectivity (e.g., 5G) between devices.

[0220] Hereinafter, more specific examples will be provided with reference to the drawings. In the drawings / descriptions below, the same drawing reference numerals may represent identical or corresponding hardware blocks, software blocks, or functional blocks, unless otherwise described.

[0221] FIG. 11 illustrates a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 11 can be combined with various embodiments of the present disclosure.

[0222] Referring to FIG. 11, a communication system (1) to which various embodiments of the present disclosure are applied includes a wireless device, a base station, and a network. Here, the wireless device refers to a device that performs communication using a wireless access technology (e.g., 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (eXtended Reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Things) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with a wireless communication function, an autonomous vehicle, a vehicle capable of performing vehicle-to-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone) and / or an Aerial Vehicle (AV) (e.g., an Advanced Air Mobility (AAM)). The XR device may include an Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) device, and may be implemented in the form of a Head-Mounted Device (HMD), a Head-Up Display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, a digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smart pad, a wearable device (e.g., a smart watch, smart glasses), a computer (e.g., a laptop, etc.), etc. The home appliance may include a TV, a refrigerator, a washing machine, etc. The IoT device may include a sensor, a smart meter, etc. For example, a base station and a network may also be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0223] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification may include not only LTE, NR, and 6G, but also Narrowband Internet of Things for low-power communication. At this time, for example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented with standards such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification may perform communication based on LTE-M technology. At this time, for example, LTE-M technology may be an example of LPWAN technology, and may be called by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology can be implemented by at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification can include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low-power communication, and is not limited to the above-described names. For example, ZigBee technology can create personal area networks (PAN) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.

[0224] Wireless devices (100a to 100f) can be connected to a network (300) via a base station (200). Artificial Intelligence (AI) technology can be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) via the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, etc. The wireless devices (100a to 100f) can communicate with each other via the base station (200) / network (300), but can also communicate directly (e.g., sidelink communication) without going through the base station / network. For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (Vehicle to Vehicle) / V2X (Vehicle to Everything) communication). In addition, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0225] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base stations (200), and base stations (200) / base stations (200). Here, wireless communication / connection can be achieved through various wireless access technologies (e.g., 5G NR) such as uplink / downlink communication (150a), sidelink communication (150b) (or, D2D communication), and communication between base stations (150c) (e.g., relay, IAB (Integrated Access Backhaul). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, at least some of various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), and resource allocation processes can be performed based on various proposals of the present disclosure.

[0226] FIG. 12 illustrates a wireless device according to an embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure.

[0227] Referring to FIG. 12, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals via various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} can correspond to {the wireless device (100x), the base station (200)} and / or {the wireless device (100x), the wireless device (100x)} of FIG. 11.

[0228] A first wireless device (100) includes one or more processors (102) and one or more memories (104), and may further include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memories (104) and / or the transceivers (106), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (102) may process information in the memory (104) to generate first information / signal, and then transmit a wireless signal including the first information / signal via the transceiver (106). Furthermore, the processor (102) may receive a wireless signal including second information / signal via the transceiver (106), and then store information obtained from signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may perform some or all of the processes controlled by the processor (102), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement a wireless communication technology (e.g., LTE, NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals via one or more antennas (108). The transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.

[0229] A second wireless device (200) includes one or more processors (202), one or more memories (204), and may further include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memories (204) and / or the transceivers (206), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (202) may process information in the memory (204) to generate third information / signals, and then transmit a wireless signal including the third information / signals via the transceivers (206). In addition, the processor (202) may receive a wireless signal including fourth information / signals via the transceivers (206), and then store information obtained from signal processing of the fourth information / signals in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, the memory (204) may perform some or all of the processes controlled by the processor (202), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (202) and the memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). The transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with an RF unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.

[0230] Hereinafter, the hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or more processors (102, 202) may generate one or more Protocol Data Units (PDUs) and / or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and / or methods disclosed herein, and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.

[0231] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a microcomputer. One or more processors (102, 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, 202). The descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software configured to perform one or more processors (102, 202) or stored in one or more memories (104, 204) and executed by one or more processors (102, 202). The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions.

[0232] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.

[0233] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or flowcharts of this document, to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or flowcharts of this document, from one or more other devices. For example, one or more transceivers (106, 206) can be connected to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, or wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be coupled to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, or the like, as referred to in the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein, via one or more antennas (108, 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, 206) can convert received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202).One or more transceivers (106, 206) may convert user data, control information, wireless signals / channels, etc. processed by one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or filter.

[0234] FIG. 13 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure.

[0235] Referring to FIG. 13, 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). Although not limited thereto, the operations / functions of FIG. 13 may be performed in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 12. The hardware elements of FIG. 13 may be implemented in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 12. For example, blocks 1010 to 1060 may be implemented in the processor (102, 202) of FIG. 12. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 12, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 12.

[0236] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 13. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transport block (e.g., an UL-SCH transport block, a DL-SCH transport block). The wireless signal may be transmitted through various physical channels (e.g., a PUSCH or a PDSCH).

[0237] Specifically, the codeword can be converted into a bit sequence scrambled by a scrambler (1010). The scramble sequence used for scrambling is generated based on an initialization value, and the initialization value may include ID information of the wireless device, etc. The scrambled bit sequence can be modulated into a modulation symbol sequence by a modulator (1020). The modulation method may include pi / 2-BPSK (pi / 2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), m-QAM (m-Quadrature Amplitude Modulation), etc. The complex modulation symbol sequence can be mapped to one or more transmission layers by a layer mapper (1030). The modulation symbols of each transmission layer can be mapped to the corresponding antenna port(s) by a precoder (1040) (precoding). The output z of the precoder (1040) can be obtained by multiplying the output y of the layer mapper (1030) by a precoding matrix W of N*M. Here, N is the number of antenna ports, and M is the number of transmission layers. Here, the precoder (1040) can perform precoding after performing transform precoding (e.g., DFT transform) on complex modulation symbols. In addition, the precoder (1040) can perform precoding without performing transform precoding.

[0238] The resource mapper (1050) can map modulation symbols of each antenna port to time-frequency resources. The time-frequency resources can include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. The signal generator (1060) generates a wireless signal from the mapped modulation symbols, and the generated wireless signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) can include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0239] The signal processing process for receiving signals in a wireless device can be configured in reverse order of the signal processing process (1010 to 1060) of FIG. 13. For example, a wireless device (e.g., 100, 200 of FIG. 12) can receive wireless signals from the outside through an antenna port / transceiver. The received wireless signals can be converted into baseband signals through a signal restorer. For this purpose, the signal restorer can include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a fast Fourier transform (FFT) module. Thereafter, the baseband signal can be restored to a codeword through a resource demapper process, a postcoding process, a demodulation process, and a descrambling process. The codewords can be restored to the original information blocks through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a de-scrambler, and a decoder.

[0240] Figure 14 illustrates a wireless device according to one embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use case / service (see Figure 11). The embodiment of Figure 14 may be combined with various embodiments of the present disclosure.

[0241] Referring to FIG. 14, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 12 and may be composed of various elements, components, units / units, and / or modules. For example, the wireless device (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130), and additional elements (140). The communication unit may include a communication circuit (112) and a transceiver(s) (114). For example, the communication circuit (112) may include one or more processors (102, 202) and / or one or more memories (104, 204) of FIG. 12. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 12. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and the additional elements (140) and controls the overall operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit (130). In addition, the control unit (120) may transmit information stored in the memory unit (130) to an external device (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external device (e.g., another communication device) via a wireless / wired interface in the memory unit (130).

[0242] The additional element (140) may be configured in various ways depending on the type of the wireless device. For example, the additional element (140) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 11, 100a), a vehicle (Fig. 11, 100b-1, 100b-2), an XR device (Fig. 11, 100c), a portable device (Fig. 11, 100d), a home appliance (Fig. 11, 100e), an IoT device (Fig. 11, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or a financial device), a security device, a climate / environmental device, an AI server / device (Fig. 11, 400), a base station (Fig. 11, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.

[0243] In FIG. 14, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be interconnected entirely via a wired interface, or at least some may be wirelessly connected via a communication unit (110). For example, within the wireless device (100, 200), the control unit (120) and the communication unit (110) may be wired, and the control unit (120) and the first unit (e.g., 130, 140) may be wirelessly connected via the communication unit (110). In addition, each element, component, unit / part, and / or module within the wireless device (100, 200) may further include one or more elements. For example, the control unit (120) may be composed of one or more processor sets. For example, the control unit (120) may be composed of a set of a communication control processor, an application processor, an electronic control unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of a random access memory (RAM), a dynamic RAM (DRAM), a read only memory (ROM), a flash memory, a volatile memory, a non-volatile memory, and / or a combination thereof.

[0244] Below, the implementation example of Fig. 14 is described in more detail with reference to the drawings.

[0245] FIG. 15 illustrates a mobile device according to an embodiment of the present disclosure. The mobile device may include a smartphone, a smart pad, a wearable device (e.g., a smartwatch, smartglasses), or a portable computer (e.g., a laptop, etc.). The mobile device may be referred to as a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT). The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure.

[0246] Referring to FIG. 15, the portable 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 input / output unit (140c). The antenna unit (108) may be configured as a part of the communication unit (110). Blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130 / 140 of FIG. 14, respectively.

[0247] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (120) can control components of the mobile device (100) to perform various operations. The control unit (120) can include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / codes / commands required for operating the mobile device (100). In addition, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the mobile device (100) and can include a wired / wireless charging circuit, a battery, etc. The interface unit (140b) can support connection between the mobile device (100) and other external devices. The interface unit (140b) can include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can input or output video information / signals, audio information / signals, data, and / or information input from a user. The input / output unit (140c) may include a camera, a microphone, a user input unit, a display unit (140d), a speaker, and / or a haptic module.

[0248] For example, in the case of data communication, the input / output unit (140c) obtains information / signals (e.g., touch, text, voice, image, video) input by the user, and the obtained information / signals can be stored in the memory unit (130). The communication unit (110) converts the information / signals stored in the memory into wireless signals, and can directly transmit the converted wireless signals to other wireless devices or to a base station. In addition, the communication unit (110) can receive wireless signals from other wireless devices or base stations, and then restore the received wireless signals to the original information / signals. The restored information / signals can be stored in the memory unit (130) and then output in various forms (e.g., text, voice, image, video, haptic) through the input / output unit (140c).

[0249] FIG. 16 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure. The vehicle or autonomous vehicle may be implemented as a mobile robot, a car, a train, a manned or unmanned aerial vehicle (AV), a ship, or the like. The embodiment of FIG. 16 may be combined with various embodiments of the present disclosure.

[0250] Referring to FIG. 16, a vehicle or autonomous vehicle (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a driving unit (140a), a power supply unit (140b), a sensor unit (140c), and 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 blocks 110 / 130 / 140 of FIG. 14, respectively.

[0251] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with external devices such as other vehicles, base stations (e.g., base stations, road side units, etc.), and servers. The control unit (120) can control elements of the vehicle or autonomous vehicle (100) to perform various operations. The control unit (120) can include an ECU (Electronic Control Unit). The drive unit (140a) can drive the vehicle or autonomous vehicle (100) on the ground. The drive unit (140a) can include an engine, a motor, a power train, wheels, brakes, a steering device, etc. The power supply unit (140b) supplies power to the vehicle or autonomous vehicle (100) and can include a wired / wireless charging circuit, a battery, etc. The sensor unit (140c) can obtain vehicle status, surrounding environment information, user information, etc. The sensor unit (140c) may include an IMU (inertial measurement unit) sensor, a collision sensor, a wheel sensor, a speed sensor, an incline sensor, a weight detection sensor, a heading sensor, a position module, a vehicle forward / backward sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, an illuminance sensor, a pedal position sensor, etc. The autonomous driving unit (140d) may implement a technology for maintaining a driving lane, a technology for automatically controlling speed such as adaptive cruise control, a technology for automatically driving along a set path, a technology for automatically setting a path and driving when a destination is set, etc.

[0252] For example, the communication unit (110) can receive map data, traffic information data, etc. from an external server. The autonomous driving unit (140d) can generate an autonomous driving route and driving plan based on the acquired data. The control unit (120) can control the drive unit (140a) so that the vehicle or autonomous vehicle (100) moves along the autonomous driving route according to the driving plan (e.g., speed / direction control). During autonomous driving, the communication unit (110) can irregularly / periodically acquire the latest traffic information data from an external server and can acquire surrounding traffic information data from surrounding vehicles. In addition, during autonomous driving, the sensor unit (140c) can acquire vehicle status and surrounding environment information. The autonomous driving unit (140d) can update the autonomous driving route and driving plan based on newly acquired data / information. The communication unit (110) can transmit information regarding the vehicle location, autonomous driving route, driving plan, etc. to the external server. External servers can predict traffic information data in advance using AI technology or other technologies based on information collected from vehicles or autonomous vehicles, and provide the predicted traffic information data to the vehicles or autonomous vehicles.

[0253] The claims set forth in this specification may be combined in various ways. For example, the technical features of the method claims of this specification may be combined and implemented as a device, and the technical features of the device claims of this specification may be combined and implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a device, and the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a method.

Claims

1. In a method for performing wireless communication by a first device, A step of obtaining information related to a first cyclic shift; and A step of performing transmission based on information related to the first cyclic shift; including, A method wherein information related to the first cyclic shift for an aerial device is set independently from information related to the second cyclic shift for a non-aerial device.

2. In paragraph 1, A method wherein the information related to the first cyclic shift is information related to the number of first cyclic shift pairs for the aerial device, and the information related to the second cyclic shift is information related to the number of second cyclic shift pairs for the non-aerial device.

3. In paragraph 1, A method wherein the information related to the first cyclic shift is information related to an interval between the first cyclic shift pair for the aerial device, and the information related to the second cyclic shift is information related to an interval between the second cyclic shift pair for the non-aerial device.

4. In paragraph 3, A method wherein the interval between the first cyclic shift pairs is set to be greater than the interval between the second cyclic shift pairs.

5. In paragraph 1, A method wherein a first set of feedback resources for the above-mentioned aerial device is set independently from a second set of feedback resources for the above-mentioned non-aerial device.

6. In paragraph 1, A method wherein at least one of the number of first feedback resources for the aerial device or the period of the first feedback resource is set independently from at least one of the number of second feedback resources for the non-aerial device or the period of the second feedback resource.

7. In paragraph 1, A method wherein information related to the first transmission power for the above-mentioned aerial device is set independently from information related to the second transmission power for the above-mentioned non-aerial device.

8. In paragraph 7, A method wherein the information related to the first transmission power is information related to a first maximum transmission power for the aerial device, and the information related to the second transmission power is information related to a second maximum transmission power for the non-aerial device.

9. In paragraph 7, A method wherein the information related to the first transmission power is information related to a first path loss-based transmission power control for the aerial device, and the information related to the second transmission power is information related to a second path loss-based transmission power control for the non-aerial device.

10. In paragraph 7, A method wherein the information related to the first transmission power is information related to a first open-loop power control for the aerial device, and the information related to the second transmission power is information related to a second open-loop power control for the non-aerial device.

11. In paragraph 1, A method wherein information related to the first cyclic shift is related to a first destination ID, and information related to the second cyclic shift is related to a second destination ID.

12. In paragraph 1, A method wherein information related to the first cyclic shift is related to a first source ID, and information related to the second cyclic shift is related to a second source ID.

13. In paragraph 1, A method wherein information related to the first cyclic shift is related to a first resource region for a first altitude, and information related to the second cyclic shift is related to a second resource region for a second altitude.

14. In a first device configured to perform wireless communication, At least one transmitter / receiver; at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said first device causes: Obtaining information related to the first cyclic shift; and To perform transmission based on information related to the above first cyclic shift, A first device, wherein information related to the first cyclic shift for an aerial device is set independently from information related to the second cyclic shift for a non-aerial device.

15. In a processing device set to control the first device, at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said first device causes: Obtaining information related to the first cyclic shift; and To perform transmission based on information related to the above first cyclic shift, A processing device, wherein the information related to the first cyclic shift for an aerial device is set independently from the information related to the second cyclic shift for a non-aerial device.

16. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the first device to: Obtaining information related to the first cyclic shift; and To perform transmission based on information related to the above first cyclic shift, A non-transitory computer-readable storage medium, wherein information related to the first cyclic shift for an aerial device is set independently from information related to the second cyclic shift for a non-aerial device.

17. In a method for performing wireless communication by a second device, A step of obtaining information related to a first cyclic shift; and A step of performing reception based on information related to the first cyclic shift; including, A method wherein information related to the first cyclic shift for an aerial device is set independently from information related to the second cyclic shift for a non-aerial device.

18. In a second device configured to perform wireless communication, At least one transmitter / receiver; at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said second device causes: Obtaining information related to the first cyclic shift; and Perform reception based on information related to the above first cyclic shift, A second device, wherein information related to the first cyclic shift for an aerial device is set independently from information related to the second cyclic shift for a non-aerial device.

19. In a processing device set to control a second device, at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said second device causes: Obtaining information related to the first cyclic shift; and Perform reception based on information related to the above first cyclic shift, A processing device, wherein the information related to the first cyclic shift for an aerial device is set independently from the information related to the second cyclic shift for a non-aerial device.

20. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the second device to: Obtaining information related to the first cyclic shift; and Perform reception based on information related to the above first cyclic shift, A non-transitory computer-readable storage medium, wherein information related to the first cyclic shift for an aerial device is set independently from information related to the second cyclic shift for a non-aerial device.

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