Method and apparatus for setting sensing based on communication reference signal

Abstract

Provided are a method by which a first device performs wireless communication, and an apparatus supporting same. The method may comprise the steps of: measuring a plurality of reference signals; reporting information related to a first reference signal to a second device on the basis of a measurement value related to the first reference signal from among the plurality of reference signals being less than or equal to a threshold value; receiving, from the second device, configuration information for sensing configured on the basis of the information related to the first reference signal; and performing bistatic sensing on the basis of the configuration information.

Description

Method and device for setting sensing based on communication reference signal

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

[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 100 bps / Hz Mobility support up to 1000 km / hr Satellite integration Fully AI Fully Autonomous vehicle Fully XR Fully Haptic communication Fully

[0005] In one embodiment, a method is provided in which a first device performs wireless communication. The method may include: measuring a plurality of reference signals; reporting information related to a first reference signal to a second device based on the fact that a measurement value related to a first reference signal among the plurality of reference signals is below a threshold value; receiving setting information for sensing based on the information related to the first reference signal from the second device; and performing bistatic sensing based on the setting information.

[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, the instructions may cause the first device to: measure a plurality of reference signals based on execution by the at least one processor; report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; receive setting information for sensing based on the information related to the first reference signal from the second device; and perform bistatic sensing based on the setting information.

[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: measure a plurality of reference signals; report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; receive setting information for sensing based on the information related to the first reference signal from the second device; and perform bistatic sensing based on the setting information.

[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: measure a plurality of reference signals; report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; receive setting information for sensing based on the information related to the first reference signal from the second device; and perform bistatic sensing based on the setting information.

[0009] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure.

[0010] FIG. 2 shows a radio protocol architecture according to one embodiment of the present disclosure.

[0011] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure.

[0012] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure.

[0013] FIG. 5 shows an example of a BWP according to one embodiment of the present disclosure.

[0014] FIG. 6 shows a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure.

[0015] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure.

[0016] FIG. 8 shows an example of a sensing operation according to one embodiment of the present disclosure.

[0017] FIG. 9 illustrates a method for performing a setting for sensing based on a communication reference signal according to one embodiment of the present disclosure.

[0018] FIG. 10 illustrates a method in which a first device performs wireless communication according to one embodiment of the present disclosure.

[0019] FIG. 11 illustrates a method in which a second device performs wireless communication according to one embodiment of the present disclosure.

[0020] FIG. 12 shows a communication system (1) according to one embodiment of the present disclosure.

[0021] FIG. 13 shows a wireless device according to one embodiment of the present disclosure.

[0022] FIG. 14 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

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

[0024] FIG. 16 shows a portable device according to one embodiment of the present disclosure.

[0025] 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."

[0026] 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."

[0027] 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."

[0028] 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."

[0029] 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."

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

[0031] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0038] 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).

[0039] 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.

[0040] 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).

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiment may be omitted. 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.

[0045] 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.

[0046] 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.

[0047] 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).

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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).

[0052] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure. The embodiment of FIG. 3 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0053] 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).

[0054] 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).

[0055] 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.

[0056] CP Type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP 15kHz (u=0) 1410 130kHz (u=1) 1420 260kHz (u=2) 1440 4120kHz (u=3) 1480 8240kHz (u=4) 14160 16 Extended CP 60kHz (u=2) 1240 4

[0057] 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.

[0058] 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.

[0059] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure. The embodiment of FIG. 4 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0064] 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.

[0065] 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.

[0066] 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 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiments may be omitted.

[0067] 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, massive 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.

[0068] - 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.

[0069] - 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.

[0070] - Large-scale MIMO technology

[0071] - Hologram beamforming (HBF)

[0072] - Optical wireless technology

[0073] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0074] - Quantum communication

[0075] - Cell-free communication

[0076] - Integration of wireless information and power transmission

[0077] - Integration of wireless communication and sensing

[0078] - Integrated access and backhaul network

[0079] - Big data analysis

[0080] - Reconfigurable intelligent metasurface

[0081] - Metaverse

[0082] - blockchain

[0083] - 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).

[0084] - 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).

[0085] - 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.

[0086] - Integrated Sensing and Communication (ISAC)

[0087] - 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.

[0088] 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 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0089] 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.

[0090] Below, the integrated sensing and communication (ISAC) mentioned above will be explained in detail.

[0091] 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, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiment may be omitted. Specifically, FIG. 8(a) illustrates an example of sensing using a sensing receiver and a sensing transmitter located at the same location (e.g., monostatic sensing), and FIG. 8(b) illustrates an example of sensing using a separated sensing receiver and a sensing transmitter (e.g., bistatic sensing).

[0092] The meanings of the terms used in this disclosure may be as follows.

[0093] - ISAC: Integrated Sensing and Communication

[0094] - Sensing signal: A reference signal transmitted and received for sensing

[0095] - Sensing Transmitter (sensing Tx(transmitter)): An entity that transmits a sensing signal

[0096] - Sensing Receiver (sensing Rx(receiver)): An entity that receives a sensing signal

[0097] - Monostatic sensing: Sensing where the sensing transmitter and the sensing receiver are located together in the same TRP or UE.

[0098] - Bi-static sensing: Sensing where the sensing transmitter and the sensing receiver are located in different TRPs or UEs

[0099] - Multi-static sensing: Sensing having multiple sensing transmitters and / or multiple sensing receivers for a sensing target

[0100] - Target object (TO): The object to be detected through sensing

[0101] - Environment object (EO): An object whose location is known, other than the target object.

[0102] - Clutter: Background or objects whose location cannot be determined, excluding the target object and environment object.

[0103] - 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.

[0104] - 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.

[0105] - 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.

[0106] - 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.

[0107] - SMF: Sensing Management Function, an entity that performs at least one of the following functions. For example, the SMF may be a logical entity defined in a core network or RAN. For example, the SMF may be a base station or a UE with the capability to perform the SMF.

[0108] (1) Setting parameters related to the sensing reference signal

[0109] (2) Control of sensing operations and / or procedures

[0110] (3) Receive measurement results related to sensing, and estimate the sensing results (e.g., distance, speed, direction, or object recognition, etc.) based on the measurement results.

[0111] - TSA (target sensing area): The area where objects are to be detected through sensing.

[0112] - RCS (radar cross section): The effective area that intercepts transmitted radar power and scatters it isotropically to the radar receiver.

[0113] - Sensing entity: An entity associated with a sensing operation. For example, a sensing entity may include a sensing transmitter, a sensing receiver, and / or an SMF.

[0114] Meanwhile, conventional sensing operations have been performed for purposes such as detecting specific objects or areas or estimating their locations, and were generally designed independently of communication systems. While these conventional sensing operations were effective for acquiring information about sensing targets (e.g., objects or areas) or the environment, they were not considered for the direct improvement of communication performance. Furthermore, in conventional communication systems, operations to measure channel status and link quality based on reference signals and adjust beam or resource allocation based on these measurements have been defined individually. Although these conventional reference signal-based measurement operations can maintain or improve communication performance, there were limitations in utilizing factors that cause communication link performance degradation, such as path blocking or changes in the spatial environment, from a sensing perspective. In this case, in systems where sensing and communication are combined (e.g., ISAC), inefficiency may occur if sensing and communication operations are performed independently as described above. For instance, even if sensing results capable of estimating the state of a communication channel are acquired, unnecessary link resetting or beam sweeping may be performed without utilizing these results. Alternatively, for example, as channel state information or measurements already obtainable through communication-related reference signals cannot be utilized in the sensing operation, redundant use of sensing and communication resources and an increase in unnecessary overhead may occur.

[0115] Specifically, for example, in the case of general sensing, sensing can be performed on all areas surrounding the sensing transmitter and receiver. Alternatively, for example, the sensing area may be determined in advance based on location, and the sensing operation may be performed while informing the transmitter and receiver of the location information. However, to obtain efficient and meaningful sensing information, it is necessary to limit the sensing area to a restricted region, and for this purpose, a beam setting method to that area may be required. Furthermore, the actual sensing result may be associated with channel information for communication between the transmitter and receiver, or the channel information may be utilized as information regarding the sensing area and / or object to be sensed. For this reason, the area of ​​interest and / or beam for sensing can be set based on the reference signal of a conventional communication system and the measurement value thereof, or conversely, the area of ​​interest and / or beam for sensing can be set based on an initial sensing signal by linking it with a communication signal.

[0116] From the perspective of improving the performance of communication systems, areas requiring sensing may be links with poor communication performance or links where channel estimation results are uncertain. Alternatively, the uncertainty regarding communication and channel estimation performance can be higher for dynamic channels compared to static ones. Therefore, the transceiver can perform sensing by setting the corresponding channel information as the sensing area and the beam for sensing.

[0117] In the present disclosure, a method for performing a setting for sensing based on a communication reference signal and an apparatus supporting the same are proposed as follows.

[0118] For example, for the operation described above, the base station and the terminal may perform the operation of measuring and reporting reference signals in a conventional communication system as follows.

[0119] For example, a base station may transmit an SS-PBCH block (synchronization signal-physical broadcast channel block) (e.g., an SSB (synchronization signal block)) through multiple beams, and a terminal may measure and report measurements such as RSRP (reference signal received power) / RSRQ (reference signal receive quality) / SINR (signal to interference plus noise ratio) for the said SSB(s). For example, in the operation described above, the terminal may report M SSB index(s) among the observable SSB(s) that have RSRP / RSRQ / SINR below a certain threshold value to the gNB and / or SF along with the measured RSRP / RSRQ / SINR value(s). Alternatively, for example, M SSB index(s) having RSRP / RSRQ / SINR variations of an SSB block above and / or below a specific threshold, and / or M SSB index(s) smaller than the specific threshold, may be reported to the gNB and / or SF along with the measured variation value(s). Alternatively, for example, the fading characteristics of an SSB block on the frequency and / or time axis may be measured, and said values ​​may be in the form of average variations within the block or spread parameters associated with coherence time and bandwidth, and the corresponding SSB index(s) may be reported to the gNB and / or SF along with M measured value(s) associated with said variability. For example, the M communication signal resources reported above may overlap with resource(s) reported by conventional communication systems. For example, if duplicate signal resources exist, reporting on the measurement value may be omitted, and only the index(s) for the signal may be transmitted.For example, the above-mentioned observable M signal resources may be reports for M resources among signal resource(s) that do not overlap with the resource(s) reported by the communication system.

[0120] For example, a base station transmits CSI-RSs via multiple beams, and a terminal can measure and report RSRP / RSRQ / SINR and / or channel estimation results (e.g., CQI (channel quality indicator), PMI (precoding matrix indicator), etc.) for the reference signal. For example, in the operation described above, the terminal can measure the performance of the CSI-RSs and report the ID(s) of the corresponding reference signal to the gNB and / or SF along with M measurement(s) (e.g., worst PMI, RI, CQI, etc.) that have low performance and / or performance below a certain threshold. For example, the M communication signal resources reported may overlap with resource(s) reported by conventional communication systems. For example, if duplicate signal resources exist, the reporting of the measurement(s) may be omitted, and only the index(s) for the signal may be transmitted. For example, the above-mentioned observable M signal resources may be reports for M resources among signal resource(s) that do not overlap with the resource(s) reported by the communication system.

[0121] For example, a base station may establish and transmit a reference signal (e.g., reference RS) and another reference signal corresponding to said signal (e.g., indicated RS) through the relationship between the DL (downlink) channel and / or reference signals, and a terminal may measure and report the difference between said two or more reference signals. For example, in the operation described above, the receiving terminal may measure the difference in the Quasi-Co Location (QCL) type (e.g., type A to D) established between the reference RS (e.g., SSB, CSI-RS, etc.) and the indicated RS (e.g., CSI-RS, PDCCH, PDSCH, etc.), and report the reference RS index or indicated RS information along with the difference value to the gNB and / or SF. For example, the base station may establish and indicate a reference signal for path loss. In this case, for example, based on the difference in received signal power, the transmitting beam corresponding to the reference signal may be set as a beam for sensing, or the terminal or SF may be notified.

[0122] For example, along with the above report, the receiving terminal may request the transmission of a sensing signal for the corresponding transmitting beam, and the gNB and / or SF may set transmission parameters and resources for transmitting and receiving the sensing signal based on the reported measurement(s) and index(s) and transmit the sensing signal to the terminal.

[0123] Alternatively, for example, it may request sensing resources for monostatic based on the received beam when the corresponding beam is received, or it may perform monostatic itself through separate resources for sensing.

[0124] For example, through the operation described above, it may be possible to configure the sensing area and beam based on the communication beam-based measurement(s), and this can help improve the performance of a degraded channel or communication reference signal. Additionally, for example, the measurement(s) based on the communication signal can be utilized as prior information for sensing, and the estimation of relevant parameters for sensing can be easily performed.

[0125] Additionally, for example, a base station and a terminal connected for communication may perform monostatic sensing by utilizing separate resources, and it may be necessary to extend this to a bistatic sensing mode to acquire diversity of observation values ​​regarding regions of interest and objects. For instance, the actual sensing results may be linked to the communication channel between the transceiver. For this reason, a sensing beam for a region of interest based on monostatic sensing results can be configured as a sensing beam for bistatic sensing by linking it with the transceiver beam information for communication.

[0126] For example, for the above operation, the base station and / or terminal may perform the operation of measuring and reporting reference signals in a conventional communication system as follows.

[0127] For example, a base station may perform monostatic sensing, and the gNB and / or SF may set the sensing results as a sensing signal and / or beam for bistatic sensing by associating them with a reference signal for communication and a corresponding transmit beam. For example, if a monostatic sensing beam for a region of interest is associated with a DL communication reference signal (e.g., SSB, CSI-RS, PDCCH, PDSCH, etc.), the relationship with the transmit beam for bistatic sensing based on the communication reference signal may be associated as QCL-typeD, and in association with this, the initial sensing results may be combined in the form of QCL-typeA / B / C or a separate QCL-typeX, so that information regarding the sensing region and sensing signal for bistatic sensing may be known to the UE and / or SF. Alternatively, for example, if the monostatic sensing beam for the region of interest is not associated with the DL communication reference signal, the difference values ​​for the QCL-type(s) in the transmitting beam for bistatic sensing with the QCL-typeD and QCL-typeA / B / C or X of the communication reference signal may be known to the UE and / or SF. For example, the quantity information for the QCL type may be the azimuth / elevation angle difference with respect to the beam direction in the case of QCL-typeD, or, in the case of QCL information associated with Doppler and / or delay time, the difference value for the measurement value, such as the relative difference with the sensing result. Or, for example, it may be in the form of a soft value and / or a hard value regarding similarity and / or difference with the communication beam.For example, the gNB and / or SF may set a window for aligning the receiving beam with the transmitted beam information, and the terminal may perform a receiving beam sweeping operation to measure information about the transmitted signal.

[0128] For example, the terminal may perform monostatic sensing, and the terminal may report measurement results for candidate sensing signal(s) and / or beam(s) for bistatic sensing to the SF and / or gNB in ​​conjunction with the receivable communication signal and the corresponding transmit beam. For example, information regarding a DL reference signal receivable by the monostatic sensing receive beam for the region of interest may be reported to the SF and / or gNB along with the sensing results. For example, the relationship between the monostatic sensing receive beam for the region of interest and the reference signal set for communication may be measured and reported to the SF and / or gNB.

[0129] For example, through the operation described above, the gNB and / or SF may allocate resources for bistatic sensing to expect bistatic sensing between the base station and the terminal, or the sensing information regarding the surrounding environment of the base station may be utilized as prior info for demod and / or CE for forming a communication link for the sensing beam.

[0130] As a result, a sensing operation can be set by establishing a sensing area and / or beam based on a communication signal, and by linking the sensing beam and the communication beam to report the sensing result, sensing for communication and / or communication for sensing can be performed.

[0131] FIG. 9 illustrates a method for performing a setting for sensing based on a communication reference signal according to one embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0132] Referring to FIG. 9, a UE (user equipment) and a BS (base station) can communicate based on one or more communication links. For example, the BS can transmit multiple communication reference signals (e.g., SSB or CSI-RS) to the UE. For example, the BS can transmit communication reference signals based on multiple beams. Specifically, for example, a first communication reference signal can be transmitted based on beam A1, a second communication reference signal can be transmitted based on beam B1, and a third communication reference signal can be transmitted based on beam C1. For example, the UE can receive each communication reference signal based on a beam that is aligned (or paired) with each beam used for transmitting the BS's communication reference signals. Specifically, for example, a first communication reference signal may be received based on beam A2 aligned (or paired) with beam A1, a second communication reference signal may be received based on beam B2 aligned (or paired) with beam B1, and a third communication reference signal may be received based on beam C2 aligned (or paired) with beam C1. For example, the UE may perform measurements related to received power (e.g., RSRP (reference signal received power)), received quality (e.g., RSRQ (reference signal receive quality) or SINR (signal to interference plus noise ratio)), or channel condition (e.g., CSI) based on the communication reference signals received for each beam. For example, the UE may report information related to the received power or channel condition measured based on each communication reference signal to the BS.

[0133] For example, as illustrated in FIG. 9, if an obstacle exists between the UE and the BS, the RSRP / RSRQ / SINR based on the communication reference signal may be lowered due to blockage of the line of sight (LOS) or increased path loss caused by the obstacle. For example, the RSRP / RSRQ / SINR measured based on the third communication reference signal may be higher than the RSRP / RSRQ / SINR measured based on the first communication reference signal and the RSRP / RSRQ / SINR measured based on the second communication reference signal. In this case, for example, the transmit / receive beam associated with the third communication reference signal may be set / selected as the best beam. For example, the UE and the BS may use the transmit / receive beam set / selected as the best beam as the beam for communication.

[0134] Alternatively, for example, the UE may compare the RSRP / RSRQ / SINR measured based on each communication reference signal with a threshold value. For example, the RSRP / RSRQ / SINR measured based on the second communication reference signal and the RSRP / RSRQ / SINR measured based on the third communication reference signal may be higher than the threshold value, and the RSRP / RSRQ / SINR measured based on the first communication reference signal may be lower than the threshold value. In this case, for example, the transmit / receive beam associated with the first communication reference signal may be set / selected as the worst beam. For example, the UE may report information related to the first communication reference signal, for which the RSRP / RSRQ / SINR is lower than the threshold value, to the BS. For example, the information related to the first communication reference signal reported to the BS may include a measurement value (e.g., RSRP / RSRQ / SINR) associated with the first communication reference signal or an identifier / index associated with the first communication reference signal. For example, the BS can perform settings for sensing based on information related to a first communication reference signal received from the UE. For example, the BS can set a sensing signal, a sensing area, or a sensing beam related to bistatic sensing between the UE and the BS based on information related to the first communication reference signal. For example, the BS can transmit sensing setting information set based on information related to the first communication reference signal to the UE. For example, the UE can perform bistatic sensing based on the sensing setting information. Specifically, for example, the BS can set beam A1 as a beam for transmitting a sensing signal and transmit a sensing signal for bistatic sensing to a target (e.g., a target object or a target area) based on beam A1. In this case, for example, the UE can receive a sensing signal reflected from the target based on beam A2.For example, the UE can perform sensing of a target based on a sensing signal received based on beam A2.

[0135] Meanwhile, the above-described embodiment was explained based on UE-to-BS bistatic for convenience of explanation, but it can be applied to both BS-to-BS bistatic and UE-to-UE bistatic.

[0136] In embodiments of the present disclosure, "specific threshold" may mean a threshold that is predefined or set (in advance) by an upper layer (e.g., application layer) of a network, base station, or terminal. In embodiments of the present disclosure, "specific set value" may mean a value that is predefined or set (in advance) by an upper layer (e.g., application layer) of a network, base station, or terminal. In embodiments of the present disclosure, "set by network / base station" may mean an operation in which a base station sets (in advance) to a UE via upper layer signaling (e.g., RRC signaling), sets / signals to a UE via MAC CE, or signals to a UE via DCI (downlink control information).

[0137] For example, the applicability of (some) proposed methods / rules of this disclosure and / or related parameters (e.g., thresholds) may be specifically (or differently or independently) set according to the service type. For example, the applicability of (some) proposed methods / rules of this disclosure and / or related parameters may be specifically (or differently or independently) set according to the priority (LCH or service). For example, the applicability of (some) proposed methods / rules of this disclosure and / or related parameters may be specifically (or differently or independently) set according to QoS requirements (e.g., latency, reliability, minimum communication range). For example, the applicability of (some) proposed methods / rules of this disclosure and / or related parameters may be specifically (or differently or independently) set according to PQI parameters. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on whether LCH / MAC PDU transmissions with HARQ feedback enabled (HARQ feedback enabled / disabled). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on the CBR measurement of the resource pool. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on the SL cast type (e.g., unicast, groupcast, broadcast).For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to SL groupcast HARQ feedback options (e.g., NACK-only feedback, ACK / NACK feedback, TX-RX distance-based NACK-only feedback). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to the CG type in SL mode 1 (e.g., type 1 or type 2). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to the SL mode type (e.g., mode 1 or mode 2). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically set according to the resource pool. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on whether PSFCH resources are configured in a resource pool. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on an L2 ID (e.g., source L2 ID or destination L2 ID). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on a PC5 RRC connection link. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on an SL link.For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to the connection status with the base station (e.g., RRC CONNECTED status, IDLE status, INACTIVE status). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to the SL HARQ process (or SL HARQ process ID). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to whether the transmitting UE or receiving UE performs an SL DRX operation. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set according to whether the UE is a power-saving UE. For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on whether PSFCH transmission and PSFCH reception overlap from the perspective of a specific UE (or whether multiple PSFCH TXs exceeding the UE capability overlap) (or whether PSFCH transmission and / or reception are omitted). For example, the applicability of (some) proposed methods / rules of the present disclosure and / or related parameters may be specifically (or differently or independently) set depending on whether the RX UE actually receives (re)transmission of PSCCH and / or PSSCH from the TX UE (e.g., successful reception).

[0138] Additionally, in this disclosure, "configuration" (or "designation") 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). Additionally, in this disclosure, "PSFCH" may be interpreted in an extended manner as (NR or LTE) PSSCH and / or (NR or LTE) PSCCH and / or (NR or LTE) SL SSB (and / or UL channel / signal). Furthermore, the proposed method of this disclosure may be combined with one another and used in an extended manner (in a new form).

[0139] FIG. 10 illustrates a method in which a first device performs wireless communication according to one embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0140] Referring to FIG. 10, in step S1010, the first device may measure a plurality of reference signals. In step S1020, the first device may report information related to the first reference signal to the second device based on the fact that the measurement value related to the first reference signal among the plurality of reference signals is below a threshold value. In step S1030, the first device may receive setting information for sensing based on the information related to the first reference signal from the second device. In step S1040, the first device may perform bistatic sensing based on the setting information.

[0141] For example, the measurement value associated with the first reference signal may include at least one of (i) received power measured based on the first reference signal, (ii) a change in received power measured based on the first reference signal, or (iii) a channel state measured based on the first reference signal.

[0142] For example, information related to the first reference signal may include at least one of (i) a measurement value related to the first reference signal, or (ii) an identifier of the first reference signal.

[0143] For example, information related to the first reference signal may be reported based on the fact that the performance indicated by the measurement value related to the first reference signal among the plurality of reference signals is the lowest.

[0144] For example, the above setting information may include information related to at least one of (i) parameters for transmitting and receiving a sensing signal, or (ii) resources for transmitting and receiving a sensing signal, which are set based on information related to the first reference signal.

[0145] For example, the transmission beam of the sensing signal associated with the above bistatic sensing can be set based on information associated with the first reference signal.

[0146] For example, the sensing area associated with the above bistatic sensing can be set based on information associated with the first reference signal.

[0147] For example, the measurement value associated with the first reference signal can be used as prior information for the bistatic sensing.

[0148] For example, the information related to the first reference signal may include a difference value measured based on the Quasi-Co Location (QCL) relationship between the first reference signal and the second reference signal. For example, the information related to the first reference signal may further include at least one of (i) an identifier of the first reference signal, or (ii) information related to the second reference signal in which the QCL relationship is established with the first reference signal.

[0149] For example, the beam having a QCL relationship with the first reference signal can be set as the transmission beam of the sensing signal associated with the bistatic sensing. For example, the first reference signal may be associated with the beam associated with the monostatic sensing of the second device.

[0150] For example, based on the fact that the first reference signal is not associated with the beam associated with the monostatic sensing of the second device, a difference value measured based on the QCL relationship between the first reference signal and the beam associated with the bistatic sensing can be transmitted from the second device to the first device.

[0151] For example, based on the fact that the first reference signal is measured based on a beam associated with monostatic sensing of the first device, at least one of (i) a measurement value associated with the first reference signal, or (ii) relationship information between the beam associated with monostatic sensing and the first reference signal may be reported to the second device.

[0152] For example, the setting information related to the bistatic sensing above may be set based on information related to the first reference signal measured based on the beam related to the monostatic sensing of the first device.

[0153] 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 measure a plurality of reference signals. Then, the processor (102) of the first device (100) may control a transceiver (106) to report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value. Then, the processor (102) of the first device (100) may control the transceiver (106) to receive setting information for sensing based on the information related to the first reference signal from the second device. Then, the processor (102) of the first device (100) may perform bistatic sensing based on the setting information.

[0154] 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, based on the instructions executed by the at least one processor, the first device may: measure a plurality of reference signals; report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; receive setting information for sensing based on the information related to the first reference signal from the second device; and perform bistatic sensing based on the setting information.

[0155] 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 to: measure a plurality of reference signals based on execution by the at least one processor; report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; receive setting information for sensing based on the information related to the first reference signal from the second device; and perform bistatic sensing based on the setting information.

[0156] 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: measure a plurality of reference signals; report information related to the first reference signal to a second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; receive setting information for sensing based on the information related to the first reference signal from the second device; and perform bistatic sensing based on the setting information.

[0157] FIG. 11 illustrates a method in which a second 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, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0158] Referring to FIG. 11, in step S1110, the second device may transmit a plurality of reference signals to the first device. In step S1120, the second device may receive information related to a first reference signal among the plurality of reference signals from the first device. In step S1130, the second device may set setting information for sensing based on the information related to the first reference signal. For example, information related to the transmission beam of a sensing signal for bistatic sensing included in the setting information may be set based on the information related to the first reference signal.

[0159] The proposed method above may be applied to a device according to various embodiments of the present disclosure. First, a processor (202) of a second device (200) may control a transceiver (206) to transmit a plurality of reference signals to a first device. Then, the processor (202) of the second device (200) may control the transceiver (206) to receive information related to a first reference signal among the plurality of reference signals from the first device. Then, the processor (202) of the second device (200) may set setting information for sensing based on the information related to the first reference signal. For example, information related to the transmission beam of a sensing signal for bistatic sensing included in the setting information may be set based on the information related to the first reference signal.

[0160] 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, the instructions may include the step of: causing the second device to transmit a plurality of reference signals to a first device based on execution by the at least one processor; receiving information related to a first reference signal among the plurality of reference signals from the first device; and setting information for sensing based on the information related to the first reference signal. For example, information related to a transmission beam of a sensing signal for bistatic sensing included in the setting information may be set based on the information related to the first reference signal.

[0161] 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, the instructions may include the step of: causing the second device to transmit a plurality of reference signals to a first device based on execution by the at least one processor; receiving information related to a first reference signal among the plurality of reference signals from the first device; and setting information for sensing based on the information related to the first reference signal. For example, information related to a transmission beam of a sensing signal for bistatic sensing included in the setting information may be set based on the information related to the first reference signal.

[0162] 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 include the steps of: transmitting a plurality of reference signals to a first device; receiving information related to a first reference signal among the plurality of reference signals from the first device; and setting setting information for sensing based on the information related to the first reference signal. For example, information related to a transmission beam of a sensing signal for bistatic sensing included in the setting information may be set based on the information related to the first reference signal.

[0163] According to various embodiments of the present disclosure, by utilizing channel state information or measurement values ​​obtained based on a reference signal in a communication system as prior information for a sensing operation, a sensing operation can be provided to support the improvement of communication performance. For example, based on received power, channel state, or beam-related information measured through a communication reference signal, the presence of obstacles causing performance degradation of the communication link, path blockage, or the possibility of beam mismatch can be recognized, and a corresponding sensing operation can be performed. Alternatively, for example, beams, parameters, and resources for the transmission and reception of a sensing signal can be set based on communication channel information, or a sensing beam alignment operation linked to a communication beam can be performed. As a result, the transmission and reception of a sensing signal reflecting the characteristics of the communication channel becomes possible, and alignment between the communication and sensing beams can be improved. Alternatively, for example, since prior information regarding the communication channel can be utilized as background channel information for the sensing operation, the sensing area or sensing resources can be adjusted. As a result, the computational complexity and resource overhead required for the sensing operation can be reduced.

[0164] Various embodiments of the present disclosure may be combined with one another.

[0165] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0166] 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.

[0167] 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.

[0168] FIG. 12 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods and / or operations of the embodiments may be omitted.

[0169] Referring to FIG. 12, 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.

[0170] 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.

[0171] 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).

[0172] 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.

[0173] FIG. 13 shows a wireless device according to one embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods and / or operations of the embodiments may be omitted.

[0174] Referring to FIG. 13, 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. 12.

[0175] 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 flowcharts 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.

[0176] 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.

[0177] 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.

[0178] 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.

[0179] 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, code, 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.

[0180] 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.

[0181] FIG. 14 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0182] Referring to FIG. 14, 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. 14 may be performed in the processor (102, 202) and / or transceiver (106, 206) of FIG. 13. The hardware elements of FIG. 14 may be implemented in the processor (102, 202) and / or transceiver (106, 206) of FIG. 13. For example, blocks 1010 through 1060 may be implemented in the processor (102, 202) of FIG. 13. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 13, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 13.

[0183] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 14. 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).

[0184] 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.

[0185] 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.

[0186] 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. 14. For example, a wireless device (e.g., 100, 200 in FIG. 13) 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.

[0187] FIG. 15 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. 12). The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0188] Referring to FIG. 15, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 13 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. 13. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 13. 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).

[0189] 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. 12, 100a), a vehicle (Fig. 12, 100b-1, 100b-2), an XR device (Fig. 12, 100c), a portable device (Fig. 12, 100d), a home appliance (Fig. 12, 100e), an IoT device (Fig. 12, 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. 12, 400), a base station (Fig. 12, 200), a network node, etc. Wireless devices can be used in a movable or fixed location depending on the use—e.g., service.

[0190] In FIG. 15, 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 partially 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 connected via a wire, and the control unit (120) and the first unit (e.g., 130, 140) may be connected wirelessly 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.

[0191] Hereinafter, an example of the implementation of FIG. 15 will be described in more detail with reference to the drawings.

[0192] FIG. 16 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 a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT). The embodiment of FIG. 16 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0193] Referring to FIG. 16, 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. 15.

[0194] 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.

[0195] 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).

[0196] 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

1. Regarding the method, A first device measures a plurality of reference signals; The first device reports information related to the first reference signal to the second device based on the fact that a measurement value related to the first reference signal among the plurality of reference signals is below a threshold value; The first device receives setting information for sensing based on information related to the first reference signal from the second device; and A method comprising the step of the first device performing bistatic sensing based on the setting information.

2. In Paragraph 1, A method comprising at least one of the following: a measurement value associated with the first reference signal, (i) received power measured based on the first reference signal, (ii) a change in received power measured based on the first reference signal, or (iii) a channel state measured based on the first reference signal.

3. In Paragraph 1, A method comprising at least one of the information related to the first reference signal, which includes (i) a measurement value related to the first reference signal, or (ii) an identifier of the first reference signal.

4. In Paragraph 1, A method in which information related to the first reference signal is reported based on the fact that the performance indicated by the measurement value related to the first reference signal among the plurality of reference signals is the lowest.

5. In Paragraph 1, A method comprising the above setting information including information related to at least one of (i) parameters for transmitting and receiving a sensing signal, or (ii) resources for transmitting and receiving a sensing signal, which are set based on information related to the first reference signal.

6. In Paragraph 1, A method in which the transmission beam of the sensing signal associated with the above bistatic sensing or the sensing area associated with the above bistatic sensing is set based on information associated with the first reference signal.

7. In Paragraph 1, A method in which a measurement value associated with the first reference signal is used as prior information for the bistatic sensing.

8. In Paragraph 1, A method in which information related to the first reference signal includes a difference value measured based on the QCL (Quasi Co Location) relationship between the first reference signal and the second reference signal.

9. In Paragraph 8, A method comprising at least one of the information related to the first reference signal, wherein the information related to the first reference signal further comprises (i) an identifier of the first reference signal, or (ii) information related to the second reference signal in which the QCL relationship is established with the first reference signal.

10. In Paragraph 1, A method in which, based on the fact that the first reference signal is associated with a beam associated with monostatic sensing of the second device, the beam to which a QCL relationship is established with the first reference signal is set as a transmission beam of a sensing signal associated with bistatic sensing.

11. In Paragraph 1, A method in which a difference value measured based on the QCL relationship between the first reference signal and the beam associated with the bistatic sensing is transmitted from the second device to the first device, based on the fact that the first reference signal is not associated with the beam associated with the monostatic sensing of the second device.

12. In Paragraph 1, A method in which, based on the fact that the first reference signal is measured based on a beam associated with monostatic sensing of the first device, at least one of (i) a measurement value associated with the first reference signal, or (ii) relationship information between the beam associated with monostatic sensing and the first reference signal is reported to the second device.

13. In Paragraph 1, A method in which the setting information related to the bistatic sensing is set based on information related to the first reference signal measured based on the beam related to the monostatic sensing of the first device.

14. In the first device, At least one transmitter / receiver; At least one processor; and The first device comprises 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: To measure multiple reference signals; Based on the fact that a measurement value associated with a first reference signal among the plurality of reference signals is below a threshold value, information associated with the first reference signal is reported to a second device; Receiving setting information for sensing based on information related to the first reference signal from the second device; and A first device that enables bistatic sensing based on the above setting information.

15. In a processing device configured to control a first device, At least one processor; and The first device comprises 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: To measure multiple reference signals; Based on the fact that a measurement value associated with a first reference signal among the plurality of reference signals is below a threshold value, information associated with the first reference signal is reported to a second device; Receiving setting information for sensing based on information related to the first reference signal from the second device; and A processing device that enables bistatic sensing based on the above setting information.

16. A non-transient computer-readable storage medium that records instructions, When executed, the above instructions cause the first device: To measure multiple reference signals; Based on the fact that a measurement value associated with a first reference signal among the plurality of reference signals is below a threshold value, information associated with the first reference signal is reported to a second device; Receiving setting information for sensing based on information related to the first reference signal from the second device; and A non-transient computer-readable storage medium that enables bistatic sensing based on the above-mentioned configuration information.

17. Regarding the method, A step in which the second device transmits a plurality of reference signals to the first device; The second device receives information related to a first reference signal among the plurality of reference signals from the first device; and The second device comprises the step of setting setting information for sensing based on information related to the first reference signal; wherein A method in which information related to the transmission beam of a sensing signal for bistatic sensing included in the above setting information is set based on information related to the first reference signal.

18. In the second device, At least one transmitter / receiver; At least one processor; and The second device comprises 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: Transmitting a plurality of reference signals to a first device; Receiving information related to a first reference signal among a plurality of reference signals from the first device; and The method includes the step of setting setting information for sensing based on information related to the first reference signal; Information related to the transmission beam of a sensing signal for bistatic sensing included in the above setting information is a second device configured based on information related to the first reference signal.

19. In a processing device configured to control a second device, At least one processor; and The second device comprises 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: Transmitting a plurality of reference signals to a first device; Receiving information related to a first reference signal among a plurality of reference signals from the first device; and The method includes the step of setting setting information for sensing based on information related to the first reference signal; A processing device in which information related to the transmission beam of a sensing signal for bistatic sensing included in the above setting information is set based on information related to the first reference signal.

20. A non-transient computer-readable storage medium that records instructions, When executed, the above commands cause the second device: Transmitting a plurality of reference signals to a first device; Receiving information related to a first reference signal among a plurality of reference signals from the first device; and The method includes the step of setting setting information for sensing based on information related to the first reference signal; Information related to the transmission beam of a sensing signal for bistatic sensing included in the above setting information is a non-transient computer-readable storage medium configured based on information related to the first reference signal.

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