Method and device for requesting a sensing signal for ISAC

Abstract

A method for a first device to perform wireless communication and a device supporting the same are provided. The method may include: acquiring information related to a target sensing area; transmitting information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receiving the sensing signal; and performing the sensing of the target sensing area based on the sensing signal.

Description

Technology Field

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

[0002] 5G NR is a successor technology to LTE (long term evolution) and is a new clean-slate type mobile communication system with characteristics such as high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, ranging from low frequency bands below 1 GHz to mid-frequency bands from 1 GHz to 10 GHz, and high frequency (millimeter wave) bands above 24 GHz.

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

[0004] per device peak data rate 1 Tbps E2E latency 1 ms maximum spectral efficiency 100bps / Hz Mobility support Up to 1000km / hr satellite integration Fully AI Fully autonomous vehicle Fully XR Fully Haptic communication Fully means of solving the problem

[0005] In one embodiment, a method is provided in which a first device performs wireless communication. The method may include: acquiring information related to a target sensing area; transmitting information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receiving the sensing signal; and performing the sensing of the target sensing area based on the sensing signal.

[0006] In one embodiment, a first device configured to perform wireless communication is provided. The first device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the first device may: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal.

[0007] In one embodiment, a processing device configured to control a first device is provided. The processing device comprises at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions, based on execution by the at least one processor, cause the first device to: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal.

[0008] In one embodiment, a non-transient computer-readable storage medium is provided for recording instructions. When the instructions are executed, the first device may: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal. Brief explanation of the drawing

[0009] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure. FIG. 2 shows a radio protocol architecture according to one embodiment of the present disclosure. FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure. FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure. FIG. 5 shows an example of a BWP according to one embodiment of the present disclosure. FIG. 6 shows a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure. FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure. FIG. 8 shows an example of a sensing operation according to one embodiment of the present disclosure. FIG. 9 illustrates a method for requesting the transmission of a sensing signal according to one embodiment of the present disclosure. FIG. 10 illustrates a method for requesting the transmission of a sensing signal according to one embodiment of the present disclosure. FIG. 11 illustrates a method in which a first device performs wireless communication according to one embodiment of the present disclosure. FIG. 12 illustrates a method in which a second device performs wireless communication according to one embodiment of the present disclosure. FIG. 13 shows a communication system (1) according to one embodiment of the present disclosure. FIG. 14 shows a wireless device according to one embodiment of the present disclosure. FIG. 15 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. FIG. 16 shows a wireless device according to one embodiment of the present disclosure. FIG. 17 shows a portable device according to one embodiment of the present disclosure. FIG. 18 shows a vehicle or an autonomous vehicle according to one embodiment of the present disclosure. Specific details for implementing the invention

[0010] In the present disclosure, "A or B" may mean "only A," "only B," or "both A and B." Alternatively, in the present disclosure, "A or B" may be interpreted as "A and / or B." For example, in the present disclosure, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B and C."

[0011] A slash ( / ) or a comma used in the present disclosure may mean "and / or." For example, "A / B" may mean "A and / or B." Accordingly, "A / B" may mean "only A," "only B," or "both A and B." For example, "A, B, C" may mean "A, B or C."

[0012] In the present disclosure, "at least one of A and B" may mean "only A," "only B," or "both A and B." Additionally, in the present disclosure, the expressions "at least one of A or B" or "at least one of A and / or B" may be interpreted as synonymous with "at least one of A and B."

[0013] Additionally, in the present disclosure, "at least one of A, B and C" may mean "only A," "only B," "only C," or "any combination of A, B and C." Additionally, "at least one of A, B or C" or "at least one of A, B and / or C" may mean "at least one of A, B and C."

[0014] Additionally, parentheses used in the present disclosure may mean "for example." Specifically, when indicated as "control information (PDCCH)," "PDCCH" may be proposed as an example of "control information." In other words, the "control information" of the present disclosure 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."

[0015] In the following explanation, 'when, if, in case of' can be replaced with 'based on'.

[0016] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0017] In the present disclosure, a higher layer parameter may be a parameter that is set for the terminal, pre-set, or pre-defined. For example, a base station or a network may transmit the higher layer parameter to the terminal. For example, the higher layer parameter may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0018] In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling (e.g., SIB, MAC, RRC) from a base station or network. In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device. In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling (e.g., MAC, RRC, SCI (sidelink control information), device-to-device signaled control information, etc.) from another device. In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device.

[0019] In the present disclosure, user equipment (UE) may refer to a device, a portable device, a wireless device, etc. In the present disclosure, a base station (BS) may refer to a radio access network (RAN) node, a non-terrestrial network (NTN) cell / node, a transmission reception point (TRP), a network, an integrated access and backhaul (IAB) node, a device, a portable device, a wireless device, etc.

[0020] The technology proposed in this disclosure 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.

[0021] The technology proposed in this disclosure can be implemented as 6G wireless technology and can be applied to various 6G systems. For example, 6G systems may have key factors such as eMBB (enhanced mobile broadband), URLLC (ultra-reliable low latency communications), mMTC (massive machine-type communication), AI (artificial intelligence) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0022] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure.

[0023] Referring to FIG. 1, in step S101, the first device and the second device can perform synchronization. For example, the first device may be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device may be a base station, a network, a RAN node, an NTN node / cell, a TRP, a terminal and / or at least one of the devices proposed in the present disclosure. For example, the first device may perform an initial cell search operation. For example, the first device may detect at least one synchronization signal transmitted according to a rule predefined by the second device. Here, for example, the synchronization signal may include a plurality of synchronization signals (e.g., primary synchronization signal, secondary synchronization signal, etc.) classified according to structure or use. Through this, the first device can identify the boundaries of the frame, subframe, time unit, slot, and / or symbol of the second device, and the first device can obtain information about the second device (e.g., cell identifier).

[0024] In step S103, the first device may obtain system information transmitted by the second device. For example, the system information may include information related to the attributes, characteristics, and / or capabilities of the second device that are necessary to connect to the second device and use the service. For example, the system information may be classified according to content (e.g., whether it is essential for connection), transmission structure (e.g., the channel used, whether it is provided on-demand), etc. For example, the system information may be classified into a master information block (MIB) and a system information block (SIB). For example, if necessary, the first device may transmit a signal requesting the system information prior to receiving the system information. For example, the request and provision of the system information may be performed after a random access procedure described later.

[0025] In step S105, the first device and the second device may perform a random access procedure. For example, the first device may transmit and / or receive at least one message for the random access procedure (e.g., random access preamble, random access response message, etc.) based on information related to the random access channel of the second device obtained through system information (e.g., channel location, channel structure, structure of supported preamble, etc.). For example, the first device may transmit a preamble (e.g., Msg1) through the random access channel, and the first device may receive a random access response message (e.g., Msg2). The first device may transmit a message (e.g., Msg3) containing information related to the first device (e.g., identification information) to the second device using scheduling information included in the random access response message, and the first device may receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be transmitted and received as a single message (e.g., MsgA), and / or Msg2 and Msg4 can be transmitted and received as a single message (e.g., MsgB).

[0026] In step S107, the first device and the second device may perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer controlling the connection (e.g., a radio resource control (RRC) layer), a layer handling mapping between a logical channel and a transmission channel (e.g., a media access control (MAC) layer), and a layer handling a physical channel (e.g., a physical (PHY) layer). For example, the first device and the second device may perform at least one of signaling to establish a connection, signaling to determine settings related to communication, and / or signaling to indicate allocated resources. For example, the control information may be signaled / transmitted through a control channel. For example, the control information and / or the control channel may be used to schedule at least one of data, a data channel (e.g., a shared channel), and / or control information on the data channel.

[0027] In step S109, the first device and the second device may transmit and / or receive data. For example, the first device and the second device may process data based on signaling of control information and transmit and / or receive it. For example, when transmitting data, the first device or the second device may perform at least one of channel encoding, rate matching, scrambling, constellation mapping, layer mapping, waveform modulation, antenna mapping, and / or resource mapping on the information bits. For example, when receiving data, the first device or the second device may perform at least one of signal extraction from resources, antenna-specific waveform demodulation, signal placement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.

[0028] For example, the layers of the radio interface protocol between the first device and the second device can be classified into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, the physical layer belonging to layer 1 can provide an information transfer service using a physical channel, and the radio resource control (RRC) layer located at layer 3 can perform the role of controlling radio resources between the first device and the second device. To this end, for example, the RRC layer can exchange RRC messages between the first device and the second device.

[0029] FIG. 2 illustrates a radio protocol architecture according to one embodiment of the present disclosure. The embodiment of FIG. 2 may be combined with various embodiments of the present disclosure. For example, FIG. 2(a) may represent a radio protocol stack in the user plane for uplink communication or downlink communication, and FIG. 2(b) may represent a radio protocol stack in the control plane for uplink communication or downlink communication. For example, FIG. 2(c) may represent a radio protocol stack in the user plane for device-to-device communication, and FIG. 2(d) may represent a radio protocol stack in the control plane for device-to-device communication.

[0030] For example, the physical layer can provide information transmission services to upper layers using a physical channel. For example, the physical layer can be connected to the upper layer, the MAC (medium access control) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through a transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted through a wireless interface. For example, data can be transmitted through a physical channel between different physical layers (e.g., between the physical layers of a first device and a second device). For example, the physical channel can be modulated using the OFDM (orthogonal frequency division multiplexing) method, and time and frequency can be utilized as wireless resources.

[0031] For example, the MAC layer can provide services to the upper layer, the RLC (radio link control) layer, through logical channels. For example, the MAC layer can provide mapping functions from multiple logical channels to multiple transmission channels. For example, the MAC layer can provide logical channel multiplexing functions through mapping from multiple logical channels to a single transmission channel. For example, the MAC sublayer can provide data transmission services over logical channels.

[0032] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee various quality of service (QoS) required by a radio bearer (RB), the RLC layer can provide three modes of operation: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat requests (ARQ).

[0033] For example, the RRC (radio resource control) layer may be defined only in the control plane. For example, the RRC layer may be responsible for controlling logical channels, transmission channels, and physical channels in relation to the configuration, reconfiguration, and release of radio bearers. For example, RB may refer to a logical path provided by the first layer (e.g., physical layer) and the second layer (e.g., MAC layer, RLC layer, PDCP (packet data convergence protocol) layer, SDAP (service data adaptation protocol) layer, etc.) for data transfer between a first device and a second device.

[0034] For example, the functions of the PDCP layer in the user plane may include the delivery of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include the delivery of control plane data and encryption / integrity protection.

[0035] For example, the establishment of an RB can mean the process of defining the characteristics of the wireless protocol layer and channel to provide specific services, and setting each specific parameter and method of operation. For example, an RB can be divided into two types: an SRB (signaling radio bearer) and a DRB (data radio bearer). For example, an SRB can be used as a channel to transmit RRC messages in the control plane, and a DRB can be used as a channel to transmit user data in the user plane.

[0036] For example, a downlink transmission channel may include at least one of a broadcast channel (BCH) that transmits system information and / or a shared channel (SCH) that transmits user traffic or control messages. For example, traffic or control messages for a downlink multicast or broadcast service may be transmitted via a downlink SCH or via a separate multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) that transmits initial control messages and / or a shared channel (SCH) that transmits user traffic or control messages. For example, a logical channel located above the transmission channel and mapped to the transmission channel may include at least one of a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), and / or a multicast traffic channel (MTCH).

[0037] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure. The embodiment of FIG. 3 can be combined with various embodiments of the present disclosure.

[0038] Referring to FIG. 3, radio frames may be used, for example, in uplink transmission, downlink transmission, and / or device-to-device transmission. For example, a radio frame may have a length of 10 ms and may be defined as two 5 ms half-frames (HF). For example, a half-frame may contain five 1 ms subframes (SF). For example, a subframe may be divided into one or more slots, and the number of slots within a subframe may be determined by subcarrier spacing (SCS). For example, each slot may contain 12 or 14 OFDM(A) symbols according to a cyclic prefix (CP).

[0039] For example, when normal CP is used, each slot may contain 14 symbols. For example, when extended CP is used, each slot may contain 12 symbols. Here, for example, the symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0040] Table 2 below shows the number of symbols per slot (N) according to 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 ) exemplifies.

[0041] CP type SCS (15*2 u ) N slot symb N frame,u slot N subframe,u slot Normal CP 15kHz (u=0) 14 10 1 30kHz (u=1) 14 20 2 60kHz (u=2) 14 40 4 120kHz (u=3) 14 80 8 240kHz (u=4) 14 160 16 Expansion CP 60kHz (u=2) 12 40 4

[0042] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be configured differently among multiple cells merged into a single terminal. Accordingly, the (absolute time) interval of a time resource (e.g., subframe, slot, or TTI (transmit time interval)) composed of the same number of symbols may be configured differently among the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTI, etc. may be referred to as time units.

[0043] For example, multiple numerologies or SCSs may be supported to support various services. For example, if the SCS is 15 kHz, a wide area in traditional cellular bands may be supported, and if the SCS is 30 kHz / 60 kHz, dense-urban, lower latency, and wider carrier bandwidth may be supported. For example, if the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz may be supported to overcome phase noise.

[0044] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure. The embodiment of FIG. 4 can be combined with various embodiments of the present disclosure.

[0045] Referring to FIG. 4, for example, a slot may include multiple symbols in the time domain. For example, a carrier may include multiple subcarriers in the frequency domain. For example, a resource block (RB) may be defined as multiple consecutive subcarriers in the frequency domain. For example, a bandwidth part (BWP) may be defined as multiple consecutive (P)RBs ((physical) resource blocks) in the frequency domain and may correspond to a single numerology (e.g., SCS, CP length, etc.). For example, a carrier may include up to N BWPs (where N is a positive integer). For example, data communication may be performed through an active BWP. For example, each element may be referred to as a resource element (RE) in a resource grid and may be mapped to a single complex symbol.

[0046] For example, a BWP can be a continuous set of PRBs in a given numerology. For example, a PRB can be selected from a continuous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0047] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the terminal may not monitor downlink radio link quality on DL BWPs other than the active DL BWP on the PCell (primary cell). For example, the terminal may not receive PDCCH (physical downlink control channel), PDSCH (physical downlink shared channel), or CSI-RS (channel state information-reference signal) (except for RRM (radio resource management)) outside of the active DL BWP. For example, the terminal may not trigger CSI (channel state information) reporting for an inactive DL BWP. For example, the terminal may not transmit PUCCH (physical uplink control channel) or PUSCH (physical uplink shared channel) outside of the active UL (uplink) BWP. For example, for the downlink, the initial BWP can be given as a consecutive set of resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For example, for the uplink, the initial BWP can be given by the system information block (SIB) for the random access procedure. For example, the default BWP can be set by the upper layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if the terminal fails to detect DCI (downlink control information) for a certain period, the terminal can switch the active BWP of the terminal to the default BWP.

[0048] FIG. 5 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 5 may be combined with various embodiments of the present disclosure. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0049] Referring to FIG. 5, for example, a common resource block (CRB) may be a numbered carrier resource block from one end of the carrier band to the other, and a PRB may be a numbered resource block within each BWP. For example, point A may indicate a common reference point for the resource block grid.

[0050] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP It can be set by ). For example, point A may be an external reference point of the PRB of a carrier where the subcarrier 0 of all numerologies (e.g., all numerologies supported by the network in that carrier) are aligned. For example, offset may be the PRB interval between the lowest subcarrier in a given numerology and point A. For example, bandwidth may be the number of PRBs in a given numerology.

[0051] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure. The embodiment of FIG. 6 can be combined with various embodiments of the present disclosure.

[0052] As core implementation technologies for 6G systems, technologies such as artificial intelligence (AI), THz (Terahertz) communication, optical wireless technology, free space optical transmission (FSO) backhaul networks, large-scale MIMO (multiple input multiple output) technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) can be adopted.

[0053] - Artificial Intelligence: Introducing AI into communications can streamline and enhance real-time data transmission. AI can determine how complex target tasks are performed using numerous analyses. For example, AI can increase efficiency and reduce processing latency. Time-consuming tasks such as handover, network selection, and resource scheduling can be performed instantly using AI. AI can also play a significant role in M2M, machine-to-human, and human-to-machine communication. Furthermore, AI can enable rapid communication in Brain-Computer Interfaces (BCI). 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.

[0054] - THz Communication: Data transmission rates can be increased by expanding bandwidth. This can be achieved by using sub-THz communication with wide bandwidth and applying advanced large-scale MIMO technology. THz waves, also known as sub-millimeter radiation, generally refer to a frequency band between 0.1 THz and 10 THz with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz-300 GHz band range (Sub-THz band) is considered the primary portion of the THz band for cellular communication. Adding the Sub-THz band to the mmWave band increases 6G cellular communication capacity. Among the defined THz bands, the 300 GHz-3 THz band is located in the far-infrared (IR) frequency band. Although the 300 GHz-3 THz band is part of the optical band, it lies at the boundary of the optical band and immediately following the RF band. Therefore, this 300 GHz-3 THz band exhibits similarities to RF. Key characteristics of THz communication include (i) widely available bandwidth to support very high data transmission rates, and (ii) high path loss occurring at high frequencies (highly directional antennas are indispensable). The narrow beam width generated by highly directional antennas reduces interference. The small wavelength of THz signals allows a much larger number of antenna elements to be integrated into devices and BSs operating in this band. This enables the use of advanced adaptive array technologies that can overcome range limitations.

[0055] - Large-scale MIMO technology

[0056] - Hologram beamforming (HBF)

[0057] - Optical wireless technology

[0058] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0059] - Quantum communication

[0060] - Cell-free communication

[0061] - Integration of wireless information and power transmission

[0062] - Integration of wireless communication and sensing

[0063] - Integrated access and backhaul network

[0064] - Big data analysis

[0065] - Reconfigurable intelligent metasurface

[0066] - Metaverse

[0067] - blockchain

[0068] - Advanced Air Mobility (AAM): AAM can be a broad concept encompassing Urban Air Mobility (UAM), Regional Air Mobility (RAM), and Uncrewed Aerial Systems (UAS). For example, AAM may include UAM, RAM, UAS, and UAVs (uncrewed aerial vehicles).

[0069] - Autonomous driving (self-driving): V2X (vehicle to everything), a core element of building autonomous driving infrastructure, refers to technologies that enable vehicles to communicate and share with various elements on the road to perform autonomous driving, such as wireless communication between vehicles (vehicle to vehicle, V2V) and between vehicles and infrastructure (vehicle to infrastructure, V2I).

[0070] - Non-terrestrial Network (NTN): An NTN may refer to a network or network segment that utilizes RF (radio frequency) resources mounted on a satellite (or UAS platform). The use of NTN services may be considered to secure wider coverage or to provide wireless communication services in locations where the installation of wireless communication base stations is difficult.

[0071] - Integrated Sensing and Communication (ISAC)

[0072] - Reconfigurable Intelligent Surface (RIS): An RIS can be used to manipulate and enhance signal propagation in a wireless communication environment. For example, an RIS can be composed of many small antennas or metasurfaces arranged on a surface, each of which can actively control the phase, amplitude, polarization, etc., of the reflected signal. For instance, an RIS can improve signal reception by controlling the path, phase, and / or strength of the propagating signal. For instance, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For instance, since an RIS can be reconfigured to suit various environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.

[0073] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure. The embodiment of FIG. 7 can be combined with various embodiments of the present disclosure.

[0074] Referring to FIG. 7, NTN communication can be performed based on a satellite network, HIBS (high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS)), and an aeronautical communication-capable terminal (e.g., AAM). For example, to improve coverage, devices such as a satellite network, HIBS, and an aeronautical communication-capable terminal (e.g., AAM) can act as relays. For example, an AAM can communicate with a base station, a satellite network, etc., and / or an AAM can communicate directly with a terminal, another AAM, etc.

[0075] Below, the integrated sensing and communication (ISAC) mentioned above will be explained in detail.

[0076] Integrated Sensing and Communication (ISAC) refers to wireless sensing, a technology that utilizes radio frequencies to determine the instantaneous linear velocity, angle, and distance (range) of objects, thereby obtaining information about the characteristics of the environment and / or objects within that environment. Since radio frequency sensing capabilities do not require connecting to objects via devices within a network, they can provide services for object location determination without the need for devices. The ability to obtain range, velocity, and angle information from radio frequency signals can provide a wide range of new functions, such as various object detection and recognition (e.g., vehicles, humans, animals, UAVs), as well as high-precision localization, tracking, and activity recognition. Wireless sensing services can provide information to various industries (e.g., unmanned aerial vehicles, smart homes, V2X, factories, railways, public safety, etc.) that enable 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 may utilize non-3GPP type sensors (e.g., radar, cameras) to further support 3GPP-based sensing. For example, the operation of a wireless sensing service (e.g., sensing operation) may depend on the transmission, reflection, and scattering processing of wireless sensing signals. Thus, wireless sensing can provide an opportunity to enhance existing communication systems from communication networks to wireless communication and sensing networks. FIG. 8 illustrates an example of a sensing operation according to an embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure. Specifically, FIG. 8 (a) illustrates an example of sensing using a sensing receiver and a sensing transmitter located at the same position (e.g., monostatic sensing), and FIG. 8 (b) illustrates an example of sensing using a separated sensing receiver and a sensing transmitter (e.g., bistatic sensing).

[0077] The present disclosure may be applied to operations for positioning and / or operations for integrated sensing and communication (ISAC).

[0078] In the present disclosure, the following terms may be used.

[0079] For example, the "PRS" or "SL PRS" below can be interpreted / applied by replacing it with "sensing signal" or "sensing RS (reference signal)".

[0080] - LMF: Location management function

[0081] - UE-triggered SL positioning: SL (sidelink) positioning where the procedure is triggered by the UE

[0082] - SL positioning triggered by base station / LMF: SL positioning where the procedure is triggered by base station / LMF

[0083] - UE-controlled SL positioning: SL positioning where the SL positioning group is generated by the UE

[0084] - SL positioning controlled by a base station: SL positioning where the SL positioning group is generated by the base station

[0085] - UE-based SL positioning: SL positioning where the UE location is calculated by the UE

[0086] - UE-assisted SL positioning: SL positioning where the UE location is calculated by the base station / LMF

[0087] - SL Positioning Group: UEs participating in SL positioning

[0088] - T-UE(Target UE): UE whose position is calculated

[0089] - S-UE (Server UE): A UE that assists T-UE's positioning

[0090] - Anchor UE: A UE that assists T-UE's positioning

[0091] - MG: Measurement gap where only SL PRS transmission is allowed

[0092] - MW: Measurement window where both SL data and SL PRS can be transmitted in a multiplexed way

[0093] - SL PRS: Sidelink Positioning Reference Signal

[0094] - CCH: control channel

[0095] - IUC (Inter-UE coordination) message: A message received by the TX UE from other UEs, including the RX UE, which contains information about the set of preferred resources suitable for the TX UE to transmit to the RX UE, and / or information about the set of non-preferred resources not suitable for transmission.

[0096] - Sensing RS (reference signal): A reference signal used for measurements for sensing purposes

[0097] - BS-BS Sensing: Sensing in which BS#1 transmits a sensing RS and BS#2 receives the sensing RS. For example, if BS#1 and BS#2 are separate BSs, it may mean BS-BS bi-static sensing operation. For example, if BS#1 and BS#2 are the same BS, it may mean BS-BS mono-static sensing operation. For example, the BS may be a base station or a TRP (transmission and reception point). For example, if BS#1 and / or BS#2 are one or more BSs, it may mean BS-BS multi-static sensing operation.

[0098] - BS-UE sensing: Sensing in which a BS transmits a sensing RS and a UE receives the sensing RS. For example, the BS may be a base station or a TRP (transmission and reception point). For example, if the BS and / or the UE are one or more BSs and / or one or more UEs, it may imply a BS-UE multi-static sensing operation.

[0099] - UE-BS sensing: Sensing in which a UE transmits a sensing RS and a BS receives the sensing RS. For example, the BS may be a base station or a TRP (transmission and reception point). For example, if the BS and / or the UE are one or more BSs and / or one or more UEs, it may imply a UE-BS multi-static sensing operation.

[0100] - UE-UE Sensing: Sensing in which UE#1 transmits a sensing RS and UE#2 receives the sensing RS. For example, if UE#1 and UE#2 are separate UEs, this may mean a UE-UE bi-static sensing operation. For example, if UE#1 and UE#2 are the same UE, this may mean a UE-UE mono-static sensing operation. For example, the BS may be a base station or a TRP (transmission and reception point). For example, if UE#1 and / or UE#2 are one or more UEs, this may mean a UE-UE multi-static sensing operation.

[0101] - SMF: Sensing Management Function

[0102] - TSA: Target sensing area

[0103] For example, an SL PRS transmission resource may be composed of an SL PRS resource set consisting of the following information.

[0104] - SL PRS resource set ID

[0105] - SL PRS Resource ID List: List of SL PRS resource IDs within the SL PRS resource set

[0106] - SL PRS Resource Type: Can be set to periodic, aperiodic, semi-persistent, or on-demand

[0107] - Alpha for SL PRS power control

[0108] - P0 for SL PRS power control

[0109] - Path loss reference for SL PRS power control: Can be set to SL SSB, DL PRS, UL SRS, UL SRS for positioning, PSCCH DMRS, PSSCH DMRS, PSFCH, SL CSI RS, etc.

[0110] For example, the above SL PRS resource set may be composed of SL PRS resources consisting of the following information.

[0111] - SL PRS Resource ID

[0112] - SL PRS Comb Size: The interval between REs transmitted within a symbol for SL PRS.

[0113] - SL PRS Comb Offset: The RE index where the SL PRS within the first SL PRS symbol is first transmitted.

[0114] - SL PRS Comb Cyclic Shift: A cyclic shift used to generate the sequence that constitutes the SL PRS

[0115] - SL PRS start position: Index of the first symbol transmitting the SL PRS within a single slot

[0116] - Number of SL PRS symbols: The number of symbols constituting the SL PRS within a single slot

[0117] - Frequency domain shift: The lowest frequency position (index) in the frequency domain where the SL PRS is transmitted

[0118] - SL PRS BW: Frequency bandwidth used for SL PRS transmission

[0119] - SL PRS Resource Type: Can be set to periodic, aperiodic, semi-persistent, or on-demand

[0120] - SL PRS Periodicity: The period in the time domain between SL PRS resources, physical, or the unit of a logical slot in the resource pool where SL PRS is transmitted.

[0121] - SL PRS Offset: An offset in the time domain from the reference timing to the start of the first SL PRS resource, in units of physical or logical slots within the resource pool where the SL PRS is transmitted. The reference timing may be SFN=0 or DFN=0, or the time of successful reception or decoding of the RRC / MAC-CE / DCI / SCI associated with the SL PRS resource.

[0122] - SL PRS Sequence ID

[0123] - SL PRS spatial relation: Can be set to SL SSB, DL PRS, UL SRS, UL SRS for positioning, PSCCH DMRS, PSSCH DMRS, PSFCH, SL CSI RS, etc.

[0124] - SL PRS CCH: SL PRS control channel. Can signal SL PRS resource configuration information and resource locations, etc.

[0125] Meanwhile, in the prior art, a procedure for performing bi-static sensing based on specifying a Tx entity is not defined. Therefore, it is necessary to define a sensing operation that specifies the Tx entity to transmit the sensing RS (reference signal). Furthermore, according to the prior art, the Rx entity performing the sensing cannot determine the Tx entity to transmit the sensing RS (reference signal). In this case, the following problems may occur. For example, when considering the geographical or topographical relationship between each of the multiple Tx entities and the TSA, even if it is expected that the reliability of the sensing will be guaranteed when the Rx entity performs sensing based on the sensing RS transmitted by the first Tx entity, the Rx entity cannot request the first Tx entity to transmit the sensing RS, and as a result, the Rx entity may receive the sensing RS transmitted by a Tx entity other than the first Tx entity among the multiple Tx entities, so the reception quality of the Rx entity's sensing RS may be degraded, and it may be difficult to guarantee the reliability of the sensing performed based on this.

[0126] In this disclosure, a sensing method performed based on a specified Tx entity to transmit a sensing RS and an apparatus supporting the same are proposed.

[0127] For example, in performing bi-static sensing, if the sensing is performed after the Tx entity that transmitted the sensing RS designates a target Rx entity to receive the sensing RS reflected by an object, the Tx entity and the Rx entity may perform bi-static sensing according to the following method.

[0128] For example, a sensing management function (SMF) and / or an Rx entity (e.g., an Rx BS or an Rx UE) may request the transmission of a sensing RS from a Tx entity (e.g., a Tx BS or a Tx UE) located near a target sensing area (TSA) and / or near the Rx entity. For example, the Rx BS may request the transmission of the sensing RS from a UE within the receiving coverage of the Rx BS located near the TSA and / or a UE that has established an RRC_CONNECTED_MODE with the Rx BS. For example, the Rx BS may request the transmission of the sensing RS from a Tx BS located near the TSA. For example, the request for the transmission of the sensing RS may be transmitted via a dedicated protocol used for the sensing operation. For example, the Rx BS may transmit TSA information and ID information related to the Tx BS (e.g., cell ID or TRP ID, etc.) to the SMF so that the SMF may request the transmission of a sensing RS from the corresponding Tx BS. For example, the SMF may determine the Tx BS to transmit the sensing RS based on the TSA information and transmit ID information related to the Tx BS to the Rx BS. For example, the Rx UE may request the transmission of a sensing RS from a BS that has established an RRC_CONNECTED_MODE with it. For example, the above operation may be limited to cases where the distance between the TSA and the BS is within a threshold. For example, the above operation may be limited to cases where the distance between the TSA and the BS is shorter than or / or equal to the distance between the TSA and another BS.For example, the Rx UE may request the transmission of a sensing RS from a neighbor BS (e.g., a cell or TRP) that does not have an RRC_CONNECTED_MODE with it. For example, the operation may be limited to cases where the distance between the TSA and the neighbor BS is shorter than the distance between the TSA and the BS with which the Rx UE itself has an RRC_CONNECTED_MODE. For example, the Rx UE may transmit ID information related to the neighbor BS to the SMF, and the SMF may request the transmission of a sensing RS from the neighbor BS. For example, the Rx UE may transmit ID information related to the neighbor BS to the BS with which it has an RRC_CONNECTED_MODE, and may request the transmission of a sensing RS to the neighbor BS with which the Rx UE and the BS have an RRC_CONNECTED_MODE. For example, for the above operation, the location of the neighbor BS may be provided to the UE.

[0129] For example, an Rx entity (e.g., Rx BS or Rx UE) may request the transmission of a sensing RS from a Tx entity (e.g., Tx BS or Tx UE) near the Rx entity. For example, the Rx entity may request the transmission of the sensing RS from a Tx entity located within a threshold distance from its location. For example, the Rx entity may request the transmission of the sensing RS from a Tx entity among the Tx entities located within the threshold distance that has a line-of-sight (LOS) with the Rx entity. For example, the Rx entity may request the transmission of the sensing RS to a Tx entity whose RSSI (received signal strength indication) and / or RSRP (reference signal received power) associated with the signal and / or channel transmitted by the Tx entity it received is above a threshold value. For example, the Rx entity may request the SMF to determine and instruct the Tx entity to transmit the sensing RS. For example, the Rx entity may report an ID associated with the Rx entity itself to the SMF. For example, if the Rx entity is a BS, the ID associated with the Rx entity may be a cell ID or a TRP ID.For example, if the Rx entity is a UE, the ID associated with the Rx entity may be its source ID and / or the C-RNTI (cell radio network temporary identifier) ​​value that the Rx UE is using for Uu communication in a serving cell operating in RRC_CONNECTED_MODE. For example, in the above-described case (where the Rx entity requests the SMF to determine and instruct the Tx entity to transmit the sensing RS), the SMF may determine the Tx entity to transmit the sensing RS and transmit ID information associated with the Tx entity to the Rx entity. For example, if the Tx entity is a BS, the ID associated with the Tx entity may be a cell ID or a TRP ID. For example, if the Tx entity is a UE, the ID associated with the Tx entity may be its source ID and / or the C-RNTI value that the Tx UE is using for Uu communication in a serving cell operating in RRC_CONNECTED_MODE. For example, the above-described operation(s) may be limited to cases where no TSA is specified for the bi-static sensing and sensing is performed around the Tx entity and / or Rx entity.

[0130] FIG. 9 illustrates a method for requesting the transmission of a sensing signal according to one embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure.

[0131] Referring to FIG. 9, base station A (921) and base station B (922) may be Tx entities capable of transmitting a sensing RS (reference signal) to perform bi-static sensing. And, for example, Rx entity (910) may receive a sensing RS (reference signal) transmitted from the Tx entity to perform bi-static sensing.

[0132] For example, an Rx entity (910) can obtain information related to the TSA (930). And, for example, the Rx entity (910) can transmit sensing RS request information (e.g., information requesting the transmission of sensing RS) (940) to at least one of a plurality of Tx entities (e.g., base station A (921) and base station B (922)) to perform sensing of the TSA (930). In this case, for example, the plurality of Tx entities (e.g., base station A (921) and base station B (922)) may be Tx entities located around the TSA (930). Alternatively, for example, the plurality of Tx entities (e.g., base station A (921) and base station B (922)) may be Tx entities located around the Rx entity (910). Alternatively, for example, the plurality of Tx entities (e.g., base station A (921) and base station B (922)) may be Tx entities located around at least one of the TSA (930) or the Rx entity (910).

[0133] For example, the Rx entity (910) can determine at least one Tx entity among the plurality of Tx entities (e.g., base station A (921) and base station B (922)) that is judged to have good transmission and reception of the sensing RS, and can transmit the sensing RS request information (940) to the determined Tx entity (e.g., base station B (922)). In this case, for example, even if the Rx entity (910) establishes an RRC connection (960) only with base station A (921) among the plurality of Tx entities (e.g., base station A (921) and base station B (922)), the Rx entity (910) can transmit the sensing RS request information (940) to base station B (922) other than base station A (921) with which the RRC connection (960) is established. For example, if the Rx entity (910) determines that the reception quality of the sensing RS transmitted by base station B (922), where the RRC connection (960) is established, is higher than the reception quality of the sensing RS transmitted by base station A (921), where the RRC connection (960) is established, the Rx entity (910) may determine base station B (922), other than base station A (921) where the RRC connection (960) is established, as the Tx entity to transmit the sensing RS, and may transmit the sensing RS request information (940) to the corresponding base station B (922).

[0134] Additionally, for example, the Rx entity (910) that has obtained information related to the TSA (930) may determine at least one Tx entity to transmit the sensing RS among the plurality of Tx entities (e.g., base station A (921) and base station B (922)) by considering geographical / topographical conditions related to the TSA (930), and may transmit the sensing RS request information (940) to the determined Tx entity (e.g., base station B (922)). In this case, for example, the Rx entity (910) may determine the Tx entity to transmit the sensing RS by considering the distance between the TSA (930) and the Tx entity. For example, if the distance (970a) between base station A (921) and the TSA (930) among the plurality of Tx entities (e.g., base station A (921) and base station B (922)) is longer than the distance (970b) between base station B (922) and the TSA (930), the Rx entity (910) can transmit sensing RS request information (940) to base station B (922). For example, even if the Rx entity (910) establishes an RRC connection (960) only with the base station A (921), if the distance (970b) between the base station B (922) and the TSA (930) is shorter than the distance (970a) between the base station A (921) and the TSA (930), the Rx entity (910) can transmit sensing RS request information (940) to the base station B (922). Alternatively, for example, if only the base station B (922) among the plurality of Tx entities (e.g., base station A (921) and base station B (922)) is included within a threshold distance from the TSA (930), the Rx entity (910) can transmit sensing RS request information (940) to the base station B (922).

[0135] For example, in the case described above, the base station B (922), having received the sensing RS request information (940) from the Rx entity (910), can transmit the sensing RS (950) to the TSA (930). For example, the sensing RS (950) transmitted by the base station B (922) can be reflected from the TSA (930) and received by the Rx entity (910), and the Rx entity (910) can perform sensing based on the received sensing RS.

[0136] FIG. 10 illustrates a method for requesting the transmission of a sensing signal according to one embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure.

[0137] Referring to FIG. 10, in step S1010a, the Rx entity can receive RS (reference signal) A transmitted by the Tx entity A, and in step S1010b, the Rx entity can receive RS B transmitted by the Tx entity B.

[0138] In step S1020, the Rx entity may perform measurements based on the RS received from each Tx entity. For example, the Rx entity may measure RSSI based on RS A transmitted by Tx entity A and measure RSSI based on RS B transmitted by Tx entity B. Alternatively, for example, the Rx entity may measure RSRP based on RS A transmitted by Tx entity A and measure RSRP based on RS B transmitted by Tx entity B.

[0139] In step S1030, the Rx entity can determine the Tx entity to transmit the sensing RS among the plurality of Tx entities that transmitted the RS, based on the value measured based on the received RS. For example, the Rx entity can compare the RSSI measured based on RS A and the RSSI measured based on RS B, respectively, in the aforementioned step S1020, with a threshold value. In this case, for example, if the RSSI measured based on RS A is greater than the threshold value and the RSSI measured based on RS B is less than the threshold value, the Rx entity can determine Tx entity A, which transmitted the RS A, as the Tx entity to transmit the sensing RS. Alternatively, for example, the Rx entity can compare the RSRP measured based on RS A and the RSRP measured based on RS B, respectively, in the aforementioned step S1020, with a threshold value. In this case, for example, if the RSRP measured based on RS A is greater than the threshold value and the RSRP measured based on RS B is less than the threshold value, the Rx entity can determine the Tx entity A that transmitted the RS A as the Tx entity to transmit the sensing RS.

[0140] In step S1040, the Rx entity may request the transmission of the sensing RS from the Tx entity A, which is to transmit the sensing RS determined in the above-described step S1030. For example, the Rx entity may transmit information requesting the transmission of the sensing RS to the Tx entity A.

[0141] In step S1050, the Rx entity can receive the sensing RS transmitted by the Tx entity A. For example, the Tx entity A can transmit the sensing RS in the direction of the TSA based on receiving information requesting the transmission of the sensing RS from the Rx entity. For example, the sensing RS transmitted by the Tx entity A can be reflected from the TSA and received by the Rx entity.

[0142] In step S1060, the Rx entity can perform sensing for the TSA based on the received sensing RS.

[0143] For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the service type (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the priority (LCH or service) (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to QoS requirements (e.g., latency, reliability, minimum communication range) (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the PQI parameter (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the SL HARQ feedback ENABLED LCH / MAC PDU (transmission) (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to SL HARQ feedback DISABLED LCH / MAC PDU (transmission). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to CBR measurement values ​​of the resource pool. For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to SL cast type (e.g., unicast, groupcast, broadcast).For example, the application status of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to SL GroupCast HARQ feedback options (e.g., NACK only feedback, ACK / NACK feedback, TX-RX distance-based NACK only feedback). For example, the application status of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to SL Mode 1 CG type (e.g., SL CG type 1 or SL CG type 2). For example, the application status of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to SL Mode type (e.g., Mode 1 or Mode 2). For example, the application status of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to resource pool. For example, the parameter values ​​regarding the applicability of the above rule and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) depending on whether the PSFCH resource is a resource pool where it is configured. For example, the parameter values ​​regarding the applicability of the above rule and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) depending on the source (L2) ID. For example, the parameter values ​​regarding the applicability of the above rule and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) depending on the destination (L2) ID. For example, the parameter values ​​regarding the applicability of the above rule and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) depending on the PC5 RRC connection link.For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the SL link (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the connection status (e.g., RRC CONNECTED status, IDLE status, INACTIVE status) (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the SL HARQ process (ID) (or differently or independently). For example, the applicability of the above rule and / or parameter values ​​related to the proposed method / rule of the present disclosure may be set / allowed specifically to the SL DRX operation (of the TX UE or RX UE) (or differently or independently). For example, the parameter values ​​regarding whether the above rule applies and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to the power saving (TX or RX) UE. For example, the parameter values ​​regarding whether the above rule applies and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to the case where PSFCH TX and PSFCH RX overlap (and / or multiple PSFCH TXs exceeding the UE's capability) (and / or where PSFCH TX (and / or PSFCH RX) are omitted) from the perspective of a specific UE. For example, the parameter values ​​regarding whether the above rule applies and / or the proposed method / rule of the present disclosure may be set / allowed specifically (or differently or independently) to the case where the RX UE actually (successfully) receives a PSCCH (and / or PSSCH) (re)transmission from the TX UE.

[0144] For example, the setting (or designation) wording in the present disclosure may be interpreted in an extended manner, such as a form in which a base station informs a terminal through a predefined (physical layer or upper layer) channel / signal (e.g., SIB, RRC, MAC CE) (and / or a form provided through pre-configuration and / or a form in which a terminal informs another terminal through a predefined (physical layer or upper layer) channel / signal (e.g., SL MAC CE, PC5 RRC)).

[0145] For example, the PSFCH wording in the present disclosure may be extended to (NR or LTE) PSSCH (and / or (NR or LTE) PSCCH) (and / or (NR or LTE) SL SSB (and / or UL channel / signal)). Additionally, the proposed methods of the present disclosure may be combined with each other and extended (in a new form).

[0146] For example, in the present disclosure, a specific threshold value may refer to a threshold value that is predefined or set (in advance) by an upper layer (including the application layer) of a network, base station, or terminal. For example, in the present disclosure, a specific setting value may refer to a value that is predefined or set (in advance) by an upper layer (including the application layer) of a network, base station, or terminal. For example, an operation set by a network / base station may refer to an operation in which the base station sets (in advance) to the UE through upper layer RRC signaling, sets / signals to the UE through MAC CE, or signals to the UE through DCI.

[0147] FIG. 11 illustrates a method in which a first device performs wireless communication according to one embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure.

[0148] Referring to FIG. 11, in step S1110, the first device can obtain information related to a target sensing area. In step S1120, the first device can transmit information requesting the transmission of a sensing signal for sensing the target sensing area to the second device. In step S1130, the first device can receive the sensing signal. In step S1140, the first device can perform the sensing of the target sensing area based on the sensing signal.

[0149] For example, the second device may be a base station other than the one in which a radio resource control (RRC) connection is established with the first device.

[0150] For example, based on the fact that the distance between the target sensing area and the second device, which is a base station, is shorter than the distance between the target sensing area and the base station where an RRC connection is established with the first device, information requesting the transmission of the sensing signal can be transmitted to the second device.

[0151] For example, information requesting the transmission of the sensing signal may be transmitted to the second device based on the fact that within a threshold distance from the target sensing area, there is no base station with which an RRC connection has been established with the first device, and the second device is a base station other than the base station with which an RRC connection has been established with the first device.

[0152] For example, information requesting the transmission of the sensing signal can be transmitted to the second device based on the fact that the RSSI (received signal strength indication) value measured based on the RS (reference signal) received from the second device is greater than or equal to a threshold value.

[0153] For example, information requesting the transmission of the sensing signal can be transmitted to the second device based on the fact that the RSRP (reference signal received power) value measured based on the RS (reference signal) received from the second device is greater than or equal to a threshold value.

[0154] For example, based on the fact that the second device is included within a threshold distance from the first device, information requesting the transmission of the sensing signal may be transmitted to the second device.

[0155] For example, based on the fact that a plurality of devices including the second device are included within a threshold distance from the first device, and a line-of-sight (LOS) is secured between the second device and the first device among the plurality of devices, information requesting the transmission of the sensing signal can be transmitted to the second device.

[0156] Additionally, for example, the first device may obtain information regarding the location of the second device, which is a base station other than the base station where an RRC connection is established with the first device. For example, based on the information regarding the location of the second device, information requesting the transmission of the sensing signal may be transmitted to the second device.

[0157] For example, information requesting the transmission of the sensing signal can be transmitted to the second device based on the second device being included within a threshold distance from the target sensing area and being included within the coverage of the first device.

[0158] For example, based on a dedicated protocol related to the sensing, information requesting the transmission of the sensing signal may be transmitted to the second device.

[0159] Additionally, for example, the first device may transmit information including a first ID associated with the first device to a sensing management function (SMF). And, for example, the first device may receive information including a second ID associated with the second device from the SMF. For example, the second device may be determined by the SMF based on the first ID.

[0160] The proposed method above may be applied to a device according to various embodiments of the present disclosure. First, a processor (102) of a first device (100) may control a transceiver (106) to acquire information related to a target sensing area. Then, the processor (102) of the first device (100) may control the transceiver (106) to transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device. Then, the processor (102) of the first device (100) may control the transceiver (106) to receive the sensing signal. Then, the processor (102) of the first device (100) may perform the sensing of the target sensing area based on the sensing signal.

[0161] 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 connected to the at least one processor and storing instructions. For example, the instructions may cause the first device, based on execution by the at least one processor, to: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal.

[0162] 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 connected to the at least one processor and storing instructions. For example, the instructions may cause the first device, based on execution by the at least one processor, to: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal.

[0163] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, when the instructions are executed, the first device may: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal.

[0164] FIG. 12 illustrates a method in which a second device performs wireless communication according to one embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure.

[0165] Referring to FIG. 12, in step S1210, the second device may receive information related to a target sensing area from the first device. In step S1220, the second device may determine a base station related to the transmission of a sensing signal for sensing the target sensing area. In step S1230, the second device may transmit information requesting the transmission of the sensing signal to the base station. In step S1240, the second device may transmit information including an ID related to the base station to the first device.

[0166] The proposed method above may be applied to a device according to various embodiments of the present disclosure. First, the processor (202) of the second device (200) may control the transceiver (206) to receive information related to a target sensing area from the first device. Then, the processor (202) of the second device (200) may determine a base station related to the transmission of a sensing signal for sensing the target sensing area. Then, the processor (202) of the second device (200) may control the transceiver (206) to transmit information requesting the transmission of the sensing signal to the base station. Then, the processor (202) of the second device (200) may control the transceiver (206) to transmit information including an ID related to the base station to the first device.

[0167] 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 connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the second device may: receive information related to a target sensing area from a first device; determine a base station related to the transmission of a sensing signal for sensing the target sensing area; transmit information requesting the transmission of the sensing signal to the base station; and transmit information including an ID related to the base station to the first device.

[0168] 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 connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the second device may: receive information related to a target sensing area from a first device; determine a base station related to the transmission of a sensing signal for sensing the target sensing area; transmit information requesting the transmission of the sensing signal to the base station; and transmit information including an ID related to the base station to the first device.

[0169] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, when the instructions are executed, the second device may: receive information related to a target sensing area from the first device; determine a base station related to the transmission of a sensing signal for sensing the target sensing area; transmit information requesting the transmission of the sensing signal to the base station; and transmit information including an ID related to the base station to the first device.

[0170] According to various embodiments of the present disclosure, sensing can be performed efficiently by designating a Tx entity that transmits a sensing RS. Additionally, according to various embodiments of the present disclosure, an Rx entity can determine a Tx entity to transmit the sensing RS and request the transmission of the sensing RS from the corresponding Tx entity. In this case, for example, since the Rx entity may request the transmission of the sensing RS from Tx entities other than the Tx entity that has established an RRC connection with it, the range of the area that the Rx entity can sense can be expanded. In addition, for example, since the Rx entity can request the transmission of a sensing RS from a determined Tx entity by considering the geographical / topographical environment between itself and the Tx entity or the geographical / topographical environment between the Tx entity and the TSA, the reception quality of the sensing RS of the Rx entity can be improved, and the reliability of the sensing performed based on the sensing RS can be guaranteed.

[0171] Various embodiments of the present disclosure may be combined with one another.

[0172] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0173] Although not limited to this, the various descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document may be applied to various fields requiring wireless communication / connection (e.g., 5G) between devices.

[0174] Examples are provided in more detail below with reference to the drawings. In the following drawings and descriptions, the same reference numerals may represent the same or corresponding hardware blocks, software blocks, or function blocks unless otherwise described.

[0175] FIG. 13 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 13 can be combined with various embodiments of the present disclosure.

[0176] Referring to FIG. 13, 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 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 Thing) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with wireless communication functions, an autonomous vehicle, a vehicle capable of performing inter-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., Advanced Air Mobility). The XR device includes 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, digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a computer (e.g., a laptop, 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 be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0177] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include LTE, NR, and 6G, as well as Narrowband Internet of Things for low-power communication. For example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology and may be implemented according to standards such as LTE Cat NB1 and / or LTE Cat NB2, but is not limited to the names mentioned above. Additionally, or generally, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may perform communication based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and may be referred to by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology may be implemented in 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 names mentioned above. Additionally or generally, wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) for low-power communication, and is not limited to the names mentioned above. As an example, ZigBee technology can create personal area networks (PANs) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and may be referred to by various names.

[0178] Wireless devices (100a to 100f) can be connected to a network (300) through a base station (200). Artificial Intelligence (AI) technology may be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) through the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, or a 5G (e.g., NR) network. The wireless devices (100a to 100f) may communicate with each other through the base station (200) / network (300), but they may 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). Also, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0179] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base station (200) and base station (200) / base station (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 inter-base station communication (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 / from each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, based on various proposals of the present disclosure, at least some of the following may be performed: 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.), resource allocation processes, etc.

[0180] FIG. 14 shows a wireless device according to one embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure.

[0181] Referring to FIG. 14, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals through various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} may correspond to {wireless device (100x), base station (200)} and / or {wireless device (100x), wireless device (100x)} of FIG. 13.

[0182] The first wireless device (100) includes one or more processors (102) and one or more memories (104), and may additionally include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memory (104) and / or transceivers (106) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (102) may process information within the memory (104) to generate a first information / signal and then transmit a wireless signal containing the first information / signal through the transceiver (106). Additionally, the processor (102) may receive a wireless signal containing a second information / signal through the transceiver (106) and then store information obtained from the 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 store software code containing instructions for performing some or all of the processes controlled by the processor (102) or for performing the descriptions, functions, procedures, proposals, methods, and / or operation sequence diagrams disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement 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 through one or more antennas (108). The transceiver (106) may include a transmitter and / or receiver. The transceiver (106) may be combined with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0183] The second wireless device (200) includes one or more processors (202) and one or more memories (204), and may additionally include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memory (204) and / or transceivers (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (202) may process information within the memory (204) to generate a third information / signal and then transmit a wireless signal containing the third information / signal through the transceiver (206). Additionally, the processor (202) may receive a wireless signal containing a fourth information / signal through the transceiver (206) and then store information obtained from the signal processing of the fourth information / signal in the memory (204). Memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, memory (204) may store software code containing instructions for performing some or all of the processes controlled by the processor (202) or for performing the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). A transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals through one or more antennas (208). The transceiver (206) may include a transmitter and / or receiver. The transceiver (206) may be interchangeable with an RF unit. In this disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0184] Hereinafter, 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 Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation 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 flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate a signal (e.g., baseband signal) containing a PDU, SDU, message, control information, data, or information according to the functions, procedures, proposals, and / or methods disclosed in this document and provide it to one or more transceivers (106, 206). One or more processors (102, 202) may receive a signal (e.g., baseband signal) from one or more transceivers (106, 206) and may obtain a PDU, SDU, message, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document.

[0185] One or more processors (102, 202) may be referred to as a controller, microcontroller, microprocessor, or microcomputer. One or more processors (102, 202) may be implemented by hardware, firmware, software, or a combination thereof. 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 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. Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be contained in one or more processors (102, 202) or stored in one or more memories (104, 204) and driven by one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be implemented using firmware or software in the form of code, instructions, and / or sets of instructions.

[0186] One or more memories (104, 204) may be connected to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. One or more memories (104, 204) may be composed of ROM, RAM, EPROM, flash memory, hard drive, registers, cache memory, computer read storage media, and / or combinations thereof. One or more memories (104, 204) may be located inside and / or outside of one or more processors (102, 202). Additionally, one or more memories (104, 204) may be connected to one or more processors (102, 202) through various technologies such as wired or wireless connections.

[0187] One or more transceivers (106, 206) may transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or operation flowcharts, etc., of this document to one or more other devices. One or more transceivers (106, 206) may receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or operation flowcharts, etc., disclosed in this document from one or more other devices. For example, one or more transceivers (106, 206) may be connected to one or more processors (102, 202) and may transmit and receive wireless signals. For example, one or more processors (102, 202) may control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. 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 connected 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, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document through 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 the received wireless signal / channel, etc. from an RF band signal to a baseband signal in order to process the received user data, control information, wireless signal / channel, etc. using one or more processors (102, 202).One or more transceivers (106, 206) can convert user data, control information, wireless signals / channels, etc. processed using one or more processors (102, 202) from baseband signals to RF band signals. To this end, one or more transceivers (106, 206) may include (analog) oscillators and / or filters.

[0188] FIG. 15 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 15 can be combined with various embodiments of the present disclosure.

[0189] Referring to FIG. 15, the signal processing circuit (1000) may include a scrambler (1010), a modulator (1020), a layer mapper (1030), a precoder (1040), a resource mapper (1050), and a signal generator (1060). Although not limited thereto, the operation / function of FIG. 15 may be performed in the processor (102, 202) and / or transceiver (106, 206) of FIG. 14. The hardware elements of FIG. 15 may be implemented in the processor (102, 202) and / or transceiver (106, 206) of FIG. 14. For example, blocks 1010 through 1060 may be implemented in the processor (102, 202) of FIG. 14. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 14, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 14.

[0190] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 15. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transmission block (e.g., UL-SCH transmission block, DL-SCH transmission block). The wireless signal can be transmitted through various physical channels (e.g., PUSCH, PDSCH).

[0191] Specifically, a codeword can be converted into a scrambled bit sequence by a scrambler (1010). The scrambled sequence used for scrambling is generated based on an initialization value, which may include ID information of a 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 an N*M precoding matrix W. 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 the complex modulation symbols. Additionally, the precoder (1040) can perform precoding without performing transform precoding.

[0192] A resource mapper (1050) can map the modulation symbols of each antenna port to a time-frequency resource. The time-frequency resource may include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. A signal generator (1060) generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) may include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0193] The signal processing process for a received signal in a wireless device can be configured as the inverse of the signal processing process (1010–1060) of FIG. 15. For example, a wireless device (e.g., 100, 200 in FIG. 14) can receive a wireless signal from the outside through an antenna port / transceiver. The received wireless signal can be converted into a baseband signal through a signal restorer. To this end, the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module. Subsequently, the baseband signal can be restored into a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scrambling process. The codeword can be restored into the original information block 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.

[0194] FIG. 16 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-example / service (see FIG. 13). The embodiment of FIG. 16 may be combined with various embodiments of the present disclosure.

[0195] Referring to FIG. 16, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 14 and may be composed of various elements, components, units / parts, 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 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. 14. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 14. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and additional elements (140) and controls the general operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on a program / code / command / information stored in the memory unit (130). Additionally, the control unit (120) may transmit information stored in the memory unit (130) to an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110) in the memory unit (130).

[0196] The additional element (140) can be configured in various ways depending on the type of 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. 13, 100a), a vehicle (Fig. 13, 100b-1, 100b-2), an XR device (Fig. 13, 100c), a portable device (Fig. 13, 100d), a home appliance (Fig. 13, 100e), an IoT device (Fig. 13, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or financial device), a security device, a climate / environment device, an AI server / device (Fig. 13, 400), a base station (Fig. 13, 200), a network node, etc. Wireless devices can be used in a movable or fixed location depending on the use—e.g., service.

[0197] In FIG. 16, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be entirely interconnected via a wired interface, or at least a portion 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). Additionally, each element, component, unit / part, and / or module within the wireless device (100, 200) may include one or more additional elements. For example, the control unit (120) may be composed of one or more sets of processors. 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 RAM (Random Access Memory), DRAM (Dynamic RAM), ROM (Read Only Memory), flash memory, volatile memory, non-volatile memory and / or a combination thereof.

[0198] Hereinafter, an implementation example of FIG. 16 will be described in more detail with reference to the drawings.

[0199] FIG. 17 illustrates a portable device according to one embodiment of the present disclosure. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a portable computer (e.g., a laptop, etc.). The portable device may be referred to as an MS (Mobile Station), UT (User Terminal), MSS (Mobile Subscriber Station), SS (Subscriber Station), AMS (Advanced Mobile Station), or WT (Wireless Terminal). The embodiment of FIG. 17 may be combined with various embodiments of the present disclosure.

[0200] Referring to FIG. 17, 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 part of the communication unit (110). Blocks 110 to 130 / 140a to 140c each correspond to blocks 110 to 130 / 140 of FIG. 16.

[0201] 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 the components of the portable device (100) to perform various operations. The control unit (120) may include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / code / commands required for the operation of the portable device (100). Additionally, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the portable device (100) and may include wired / wireless charging circuits, batteries, etc. The interface unit (140b) can support the connection between the portable device (100) and other external devices. The interface unit (140b) may include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can receive or output video information / signals, audio information / signals, data, and / or information input by 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, etc.

[0202] For example, in the case of data communication, the input / output unit (140c) acquires information / signals (e.g., touch, text, voice, image, video) input from the user, and the acquired 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 another wireless device or to a base station. Additionally, the communication unit (110) can receive wireless signals from another wireless device or base station and then restore the received wireless signals to their 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).

[0203] FIG. 18 illustrates a vehicle or an autonomous vehicle according to one embodiment of the present disclosure. The vehicle or autonomous vehicle may be implemented as a mobile robot, a vehicle, a train, an aerial vehicle (AV), a ship, etc. The embodiment of FIG. 18 may be combined with various embodiments of the present disclosure.

[0204] Referring to FIG. 18, 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 part of the communication unit (110). Blocks 110 / 130 / 140a to 140d each correspond to blocks 110 / 130 / 140 of FIG. 16.

[0205] 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, roadside base stations (Roadside units), etc.), and servers. The control unit (120) can perform various operations by controlling elements of the vehicle or autonomous vehicle (100). The control unit (120) may include an Electronic Control Unit (ECU). The driving unit (140a) can drive the vehicle or autonomous vehicle (100) on the ground. The driving unit (140a) may include an engine, motor, power train, wheels, brakes, steering device, etc. The power supply unit (140b) supplies power to the vehicle or autonomous vehicle (100) and may include wired / wireless charging circuits, batteries, 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 inclination sensor, a weight detection sensor, a heading sensor, a position module, a vehicle forward / reverse sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, an illuminance sensor, a pedal position sensor, etc. The autonomous driving unit (140d) may implement technologies such as maintaining the driving lane, technologies for automatically adjusting speed such as adaptive cruise control, technologies for automatically driving along a predetermined path, and technologies for automatically setting a path and driving when a destination is set.

[0206] 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 path and a driving plan based on the acquired data. The control unit (120) can control the drive unit (140a) so that the vehicle or the autonomous vehicle (100) moves along the autonomous driving path according to the driving plan (e.g., speed / direction control). During autonomous driving, the communication unit (110) can acquire the latest traffic information data from an external server non-periodically and can acquire surrounding traffic information data from surrounding vehicles. Additionally, 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 path and the driving plan based on the newly acquired data / information. The communication unit (110) can transmit information regarding the vehicle location, autonomous driving path, driving plan, etc. to an external server. An external server can predict traffic information data in advance using AI technology, etc., based on information collected from vehicles or autonomous vehicles, and can provide the predicted traffic information data to vehicles or autonomous vehicles.

[0207] The claims described in this specification may be combined in various ways. For example, the technical features of the method claims in this specification may be combined to be implemented as a device, and the technical features of the device claims in this specification may be combined to be implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a device, and the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a method.

Claims

Claim 1 A method comprising: a first device acquiring information related to a target sensing area; transmitting information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receiving the sensing signal; and performing the sensing of the target sensing area based on the sensing signal. Claim 2 The method according to claim 1, wherein the second device is a base station other than the base station where a radio resource control (RRC) connection is established with the first device. Claim 3 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the second device based on the fact that the distance between the target sensing area and the second device, which is a base station, is shorter than the distance between the target sensing area and the base station where an RRC connection is established between the first device. Claim 4 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the second device based on the fact that within a threshold distance from the target sensing area, a base station with which an RRC connection is established with the first device is not included, and the second device is a base station other than the base station with which an RRC connection is established with the first device. Claim 5 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the first base station based on the fact that the RSSI (received signal strength indication) value measured based on the RS (reference signal) received from the second device is greater than or equal to a threshold value. Claim 6 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the first base station based on the fact that the RSRP (reference signal received power) value measured based on the RS (reference signal) received from the second device is greater than or equal to a threshold value. Claim 7 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the second device based on the second device being included within a threshold distance from the first device. Claim 8 A method according to claim 1, wherein a plurality of devices including the second device are included within a threshold distance from the first device, and a line-of-sight (LOS) is secured between the second device and the first device among the plurality of devices, and information requesting the transmission of the sensing signal is transmitted to the second device. Claim 9 A method according to claim 1, further comprising the step of obtaining information related to the location of the second device, which is a base station other than the base station where an RRC connection is established with the first device, wherein information requesting the transmission of the sensing signal is transmitted to the second device based on the information related to the location of the second device. Claim 10 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the second device based on the second device being included within a threshold distance from the target sensing area and being included within the coverage of the first device. Claim 11 A method according to claim 1, wherein information requesting the transmission of the sensing signal is transmitted to the second device based on a dedicated protocol associated with the sensing. Claim 12 The method of claim 1 further comprises the steps of: transmitting information including a first ID associated with the first device to a sensing management function (SMF); and receiving information including a second ID associated with the second device from the SMF, wherein the second device is determined by the SMF based on the first ID. Claim 13 A method according to claim 1, wherein the sensing signal transmitted by the second device is reflected in the target sensing area and received by the first device. Claim 14 A first device comprising: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions are executed by the at least one processor and cause the first device to: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal. Claim 15 A processing device configured to control a first device, comprising: at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions, based on execution by the at least one processor, cause the first device to: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal. Claim 16 A non-transient computer-readable storage medium having recorded instructions, wherein, when executed, the instructions cause a first device to: acquire information related to a target sensing area; transmit information requesting the transmission of a sensing signal for sensing the target sensing area to a second device; receive the sensing signal; and perform the sensing of the target sensing area based on the sensing signal. Claim 17 A method comprising: a second device receiving information related to a target sensing area from a first device; determining a base station related to the transmission of a sensing signal for sensing the target sensing area; transmitting information requesting the transmission of the sensing signal to the base station; and transmitting information including an ID related to the base station to the first device. Claim 18 A second device comprising: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions are executed by the at least one processor and thereby cause the second device to: receive information related to a target sensing area from a first device; determine a base station related to the transmission of a sensing signal for sensing the target sensing area; transmit information requesting the transmission of the sensing signal to the base station; and transmit information including an ID related to the base station to the first device. Claim 19 A processing device configured to control a second device, comprising: at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions, based on execution by the at least one processor, cause the second device to: receive information related to a target sensing area from a first device; determine a base station related to the transmission of a sensing signal for sensing the target sensing area; transmit information requesting the transmission of the sensing signal to the base station; and transmit information including an ID related to the base station to the first device. Claim 20 A non-transient computer-readable storage medium having recorded instructions, wherein, when executed, the instructions cause a second device to: receive information related to a target sensing area from a first device; determine a base station related to the transmission of a sensing signal for sensing the target sensing area; transmit information requesting the transmission of the sensing signal to the base station; and transmit information including an ID related to the base station to the first device.

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