Method and apparatus for sending signal, method and apparatus for measurement, and device

Abstract

The present application relates to the field of communications, and discloses a method and apparatus for sending a signal, a method and apparatus for measurement, and a device. The method for sending a signal in the embodiments of the present application comprises: a first device generates a ZC sequence, the length of the ZC sequence being a prime number; and the first device sends a target signal, a sequence of the target signal comprising the ZC sequence, and the target signal being used for measurement.

Description

Signal transmission method, measurement method, device and equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410379443.X filed in China on March 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a signal sending method, measurement method, device and equipment. Background Art

[0004] In some related technologies, before sending a measurement signal, a device often needs to cyclically extend or truncate a sequence to obtain a cyclically extended or truncated sequence. The measurement signal is then generated based on the cyclically extended or truncated sequence. However, the cross-correlation performance and peak-to-average power ratio (PAPR) performance of the cyclically extended or truncated sequence are relatively poor, resulting in poor measurement performance. Summary of the Invention

[0005] The embodiments of the present application provide a signal transmission method, a measurement method, an apparatus, and a device, which can solve the problem of poor measurement performance.

[0006] The embodiments of the present application provide a signal transmission method, a measurement method, an apparatus, and a device, which can solve the problem of poor measurement performance.

[0007] In a first aspect, a signal transmission method is provided, comprising:

[0008] The first device generates a ZC sequence, where the length of the ZC sequence is a prime number;

[0009] The first device sends a target signal, the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

[0010] In a second aspect, a measurement method is provided, comprising:

[0011] The second device measures the target signal sent by the first device;

[0012] The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

[0013] In a third aspect, a signal sending device is provided, including:

[0014] A generating module, configured to generate a ZC sequence, wherein the length of the ZC sequence is a prime number;

[0015] The first sending module is configured to send a target signal, where the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

[0016] In a fourth aspect, a measuring device is provided, comprising:

[0017] a measuring module, configured to measure a target signal sent by the first device;

[0018] The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

[0019] In a fifth aspect, a communication device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the signal sending method provided in the embodiment of the present application are implemented.

[0020] In a sixth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the processor is used to generate a ZC sequence, the length of the ZC sequence being a prime number; the communication interface is used to send a target signal, the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

[0021] In a seventh aspect, a communication device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the measurement method provided in the embodiment of the present application are implemented.

[0022] In an eighth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to measure a target signal sent by a first device; wherein the sequence of the target signal comprises a ZC sequence, and the length of the ZC sequence is a prime number.

[0023] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the signal sending method provided in the embodiment of the present application are implemented, or the steps of the measurement method provided in the embodiment of the present application are implemented.

[0024] In the tenth aspect, a wireless communication system is provided, including: a first device and a second device, wherein the first device can be used to execute the steps of the signal sending method provided in the embodiment of the present application, and the second device can be used to execute the steps of the measurement method provided in the embodiment of the present application.

[0025] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the signal sending method provided in the embodiment of the present application, or to implement the measurement method provided in the embodiment of the present application.

[0026] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the signal sending method provided in the embodiment of the present application, and the computer program / program product is executed by at least one processor to implement the steps of the measurement method provided in the embodiment of the present application.

[0027] In this embodiment of the present application, a first device generates a ZC sequence whose length is a prime number. The first device transmits a target signal whose sequence includes the ZC sequence, and the target signal is used for measurement. Because the target signal sequence includes a ZC sequence whose length is a prime number, and ZC sequences whose length is a prime number have good cross-correlation performance and good PAPR performance, measurement performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0029] FIG2 is a schematic diagram of a measurement scenario provided in an embodiment of the present application;

[0030] FIG3 is a schematic diagram of another measurement scenario provided in an embodiment of the present application;

[0031] FIG4 is a flowchart of a signal sending method provided in an embodiment of the present application;

[0032] FIG5 is a schematic diagram of a region division provided in an embodiment of the present application;

[0033] FIG6 is a schematic diagram of another area division provided in an embodiment of the present application;

[0034] FIG7 is a schematic diagram of a sequence mapping provided in an embodiment of the present application;

[0035] FIG8 is a schematic diagram of another sequence mapping provided in an embodiment of the present application;

[0036] FIG9 is a flow chart of a measurement method provided in an embodiment of the present application;

[0037] FIG10 is a schematic diagram of a performance provided by an embodiment of the present application;

[0038] FIG11 is a schematic diagram of a signal sending device provided in an embodiment of the present application;

[0039] FIG12 is a schematic diagram of a measuring device provided in an embodiment of the present application;

[0040] FIG13 is a structural diagram of a communication device provided in an embodiment of the present application;

[0041] FIG14 is a structural diagram of another communication device provided in an embodiment of the present application;

[0042] FIG15 is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0044] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0045] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0046] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0047] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0048] The network-side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0049] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( Function, AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiment of the present application, only the core network equipment in the NR system is taken as an example to introduce, and the specific type of the core network equipment is not limited.

[0050] In some embodiments, network-side devices and terminals may have perception capabilities in addition to communication capabilities. Perception capabilities refer to one or more devices with the ability to sense the position, distance, speed, and other information of a target object through the transmission and reception of wireless signals, or to detect, track, identify, and image a target object, event, or environment. Some perception functions and application scenarios are shown in Table 1:

[0051] Table 1

[0052] It should be noted that the perception categories shown in Table 1 above are only examples, and the embodiments of the present application do not limit the categories of perception measurements.

[0053] In addition, the embodiments of the present application can be applied to the communication and perception integration scenario, where communication and perception integration refers to the integrated design of communication and perception functions through spectrum sharing and hardware sharing in the same system. While transmitting information, the system can perceive information such as direction, distance, speed, and detect, track, and identify target devices or events. The communication system and the perception system complement each other to achieve overall performance improvement and bring a better service experience.

[0054] For example: the integration of communication and radar is a typical communication-perception integration (communication-perception fusion) application, and the integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, spectrum efficiency improvement, and mutual interference reduction, thereby improving the overall performance of the system.

[0055] In the embodiment of the present application, depending on the difference between the sending node and the receiving node of the perception signal, the six types of perception links shown in Figure 2 may be included but not limited to. It should be noted that each perception link in Figure 2 is illustrated by taking a sending node and a receiving node as an example. In the actual system, different perception links can be selected according to different perception needs. Each perception link may have one or more sending nodes and one receiving node, and the actual perception system may include a variety of different perception links. In addition, the perception targets in Figure 2 take people and cars as examples, and assuming that people and cars do not carry or install signal receiving / transmitting equipment, the perception targets of the actual scene will be richer.

[0056] Sensing link 1: The base station transmits and receives sensing signals autonomously. In this mode, the base station sends sensing signals and obtains sensing results by receiving the echo of the sensing signals.

[0057] Sensing link 2: inter-base station air interface sensing. In this mode, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.

[0058] Perception link 3: Uplink air interface perception: In this mode, the base station receives the perception signal sent by the terminal and obtains the perception result.

[0059] Perception link 4: Downlink air interface perception: In this mode, the terminal receives the perception signal sent by the base station and obtains the perception result.

[0060] Perception link 5: Terminal self-transmitting and self-receiving perception. In this mode, the terminal sends a perception signal and obtains the perception result by receiving the echo of the perception signal.

[0061] Perception link 6: Sidelink perception between terminals. For example, terminal 2 receives a perception signal sent by terminal 1 and obtains a perception result, or terminal 1 receives a perception signal sent by terminal 2 and obtains a perception result.

[0062] In some embodiments, the signaling transmission between the wireless access network device and the terminal, or between different terminals, may be through Radio Resource Control (RRC) signaling or Medium Access Control Control Element (MAC CE) or Layer 1 signaling or other newly defined perception signaling; the signaling transmission between the perception network function and the terminal may be through Non-Access-Stratum (NAS) signaling (forwarded via AMF) or through RRC signaling or MAC CE or Layer 1 signaling or other newly defined perception signaling; the interaction between the perception network function and the base station may be forwarded to the wireless access network through the N2 interface by the AMF; or the core network perception network function may send it to the UPF, and the UPF may send it to the wireless access network through the N3 interface; or it may be sent to the wireless access network (such as a base station) through a newly defined interface; the signaling transmission between wireless access network devices may be through the Xn interface.

[0063] In some embodiments, the perception network function may also be called a perception network element or a perception management function (Sensing Management Function, Sensing MF), which may be located on the RAN side or the core network side. It refers to a network node in the core network or RAN responsible for at least one function such as perception request processing, perception resource scheduling, perception information interaction, and perception data processing. It may be based on an upgrade of the AMF or LMF in the mobile communication network, or it may be another network node or a newly defined network node. Specifically, the functional characteristics of the perception network function / perception network element may include at least one of the following:

[0064] Target information is exchanged with a wireless signal sending device or a wireless signal measuring device (including a target terminal or a serving base station of the target terminal or a base station associated with a target area), wherein the target information includes a perception processing request, a perception capability, perception assistance data, a perception measurement quantity type, a perception resource configuration information, etc., to obtain the value of the target perception result or the perception measurement quantity (uplink measurement quantity or downlink measurement quantity) sent by the wireless signal measuring device; wherein the wireless signal can also be referred to as a perception signal.

[0065] The perception method to be used is determined based on factors such as the type of perception service, perception service consumer information, required perception service quality (QoS) requirement information, the perception capability of the wireless signal sending device, and the perception capability of the wireless signal measuring device. The perception method may include: wireless access network device A sends and wireless access network device B receives, or the wireless access network device sends and the terminal receives, or the wireless access network device A sends and receives by itself, or the terminal sends and the wireless access network device receives, or the terminal sends and receives by itself, or terminal A sends and terminal B receives, etc.

[0066] The perception device serving the perception service is determined based on factors such as the type of perception service, information about the perception service consumer, required perception QoS requirement information, the perception capability of the wireless signal sending device, and the perception capability of the wireless signal measuring device. The perception device includes a wireless signal sending device or a wireless signal measuring device.

[0067] Manage the overall coordination and scheduling of resources required for sensing services, such as configuring sensing resources for wireless access network devices or terminals;

[0068] Data processing or calculation is performed on the values ​​of the perceived measurement quantity to obtain the perceived result. The perceived result can also be verified and the perception accuracy can be estimated.

[0069] In some embodiments, radars can be categorized as monostatic and bistatic / multistatic, depending on whether the transmitter and receiver are separated. Bistatic radars generally require a significant distance between the transmitting and receiving antennas, comparable to the radar's operating range. Exo-radiation radars are a special case of bistatic radars. They utilize relevant electromagnetic wave detection theory and signal processing techniques to acquire non-cooperative electromagnetic signals transmitted by a third party (e.g., a communication base station) to detect, locate, track, and identify targets. These radars are also known as passive radars, bistatic / multistatic passive radars, passive radars, non-cooperative illuminating source radars, or non-cooperative passive detection systems.

[0070] The calculation of the bistatic radar perception result is generally based on the reference channel (direct path) signal and the monitoring channel (reflection path) signal. The typical bistatic radar architecture diagram is shown in Figure 3. Tis the distance from the signal transmitter (Transmit, Tx) to the target, R R is the distance from the signal receiving end (Receive, RX) to the target, L is the baseline distance, θ T is the angle of the target relative to the signal transmitter, θ R (θ R1 ,θ R2 ) is the angle of the target relative to the signal receiving end, and β is the bistatic angle.

[0071] In some embodiments, for perceptual measurement, the perceptual resolution is associated with the signal resource length (bandwidth), and at least one of the following associations may exist:

[0072] The relationship between the delay resolution Δτ and the perceived signal bandwidth B is:

[0073] The relationship between the distance resolution ΔR and the perception signal bandwidth B is: for single-base perception, For bistatic sensing, c is the speed of light, and β is the bistatic angle.

[0074] Doppler resolution Δf d and the coherent processing window (also called the coherent processing duration) T p (The relationship between the time domain resource length of the target signal of the perception information calculated each time, for example, the time domain resource length corresponding to the range-Doppler map obtained by performing a two-dimensional FFT operation) is:

[0075] Velocity resolution Δv and coherent processing time T p The relationship is: For single-base perception, For bistatic sensing, λ is the signal wavelength and β is the bistatic angle.

[0076] In some embodiments, the maximum unambiguous measurement range is associated with the signal resource interval, and at least one of the following relationships may exist:

[0077] Maximum unambiguous delay τ max The relationship between and the frequency domain resource interval Δf is:

[0078] Maximum unambiguous distance R max The relationship between the frequency domain resource interval Δf is: For single base station perception, For bistatic sensing, c is the speed of light, and β is the bistatic angle.

[0079] Maximum unambiguous Doppler R max The relationship between it and the time domain resource interval ΔT is:

[0080] Maximum unambiguous speed v max The relationship between the time domain resource interval ΔT is: For single-base perception, The velocity can be radial velocity; for bistatic sensing, The velocity may be the projected velocity on the bistatic bisector, λ is the signal wavelength, and β is the bistatic angle.

[0081] That is to say, when the frequency domain resource interval of the signal exceeds a certain value, ranging ambiguity will occur, and when the time domain resource interval exceeds a certain value, speed measurement / Doppler measurement ambiguity will be sent.

[0082] The ZC (Zadoff-Chu) sequence has the following properties:

[0083] Constant envelope property: ZC sequences of any length have the ideal constant envelope property in both the time and frequency domains. Therefore, ZC sequences have excellent peak-to-average power ratio (PAPR) and cubic metric (CM) properties.

[0084] Ideal periodic autocorrelation characteristics: After any ZC sequence is shifted by n bits, when n is not an integer multiple of the period of the ZC sequence, the shifted sequence is uncorrelated with the original sequence.

[0085] Good cross-correlation characteristics: When the sequences have the same length, two ZC sequences whose root sequence numbers are mutually prime, or a ZC sequence whose absolute value of the difference between the two root sequence numbers is mutually prime to the sequence length, have good cross-correlation characteristics, with a very low cross-correlation peak.

[0086] After Fourier transform, it is still a ZC sequence: any ZC sequence is still a ZC sequence after Fourier transform.

[0087] In some embodiments, the ZC base sequence generation formula is as follows:

[0088] Among them, N ZC is a prime number, and q is the root sequence number index.

[0089] When the length of the ZC sequence is a prime number, a sequence with the best cross-correlation characteristics can be obtained.

[0090] The following, in conjunction with the accompanying drawings, describes in detail a signal sending method, a measurement method, an apparatus and a device provided by the embodiments of the present application through some embodiments and their application scenarios.

[0091] Please refer to FIG4 , which is a flowchart of a signal sending method provided in an embodiment of the present application. As shown in FIG4 , the method includes the following steps:

[0092] Step 401: A first device generates a ZC sequence, where the length of the ZC sequence is a prime number.

[0093] The first device may be a terminal or a network-side device.

[0094] The prime number may be agreed upon in the protocol, configured by the network side device, or determined by the first device. For example, the prime number may be one of the following:

[0095] 131, 271, 541, 811, 1091, 1637, 3271, 139, 571, 839, 1151, 1637, 3271, etc.

[0096] In some implementations, the prime number may be determined based on resources used to carry the target signal, or may be determined based on measurement requirements, etc.

[0097] Step 402: The first device sends a target signal, where the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

[0098] The target signal sequence includes the ZC sequence, which can be understood as the target signal sequence not cyclically extending or truncating the ZC base sequence.

[0099] In addition, the sequence of the above-mentioned target signal including the ZC sequence may be that all sequences of the target signal are ZC sequences whose length is a prime number, or, a partial sequence of the above-mentioned target signal includes a ZC sequence whose length is a prime number, and other partial sequences of the above-mentioned target signal (except the partial sequence including the ZC sequence whose length is a prime number) are not limited. For example: the time domain resources used to carry the target signal include multiple time domain resources, the sequence of the target signal on some time domain resources is a ZC sequence whose length is a prime number, and the sequence of the target signal on other partial time domain resources is not limited, and can be a ZC sequence whose length is a prime number or other sequences.

[0100] The above ZC sequence can be mapped on N ZC Frequency domain resource units, where N ZC is the length of the above ZC sequence, and the frequency domain resource unit may be a frequency domain resource unit such as a subcarrier, a resource element (RE), or a resource block (RB).

[0101] The above-mentioned measurements may include at least one of the following:

[0102] Perception measurement, communication measurement, and integrated perception and communication measurement.

[0103] Among them, for perception measurement, the above-mentioned target signal is a perception signal, for communication measurement, the above-mentioned target signal is a communication signal, and for synaesthesia integrated measurement, the above-mentioned target signal can be a perception signal or a communication signal.

[0104] In some implementations, the perception signal may include at least one of the following:

[0105] Dedicated sensing signals, such as those generated based on chirp or frequency modulated continuous wave (FMCW) signals, or those generated based on pseudo-random (PN) sequences, ZC sequences, or other constant envelope zero auto-correlation (CAZAC) sequences;

[0106] Reference signals, such as Demodulation Reference Signal (DMRS), Channel State Information Reference Signal (CSI-RS), Sounding Reference Signal (SRS), or Positioning Reference Signal (PRS);

[0107] Synchronization signals, such as Primary Synchronization Signal (PSS) or Secondary Synchronization Signal (SSS);

[0108] Signals that carry communication data, such as the Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Downlink Control Channel (PDCCH), or Physical Uplink Control Channel (PUCCH) signals.

[0109] Furthermore, the target signal may be a single-port signal or a multi-port signal.

[0110] It is understandable that the perception signal and the communication signal may be the same or different. For example, for a synaesthesia integrated service, the perception signal and the communication signal may be the same.

[0111] For the above-mentioned target signal to be used for measurement, the following scenarios may be included:

[0112] Scenario 1, dual-base perception, in this scenario, the first device sends a target signal to the second device, the second device receives and measures, and the second device reports the measurement results to the first device or the third device; wherein, the first device and the second device can be terminals or base stations (or TRPs), specifically, the first device can be a base station and the second device can be a terminal; or, the first device can be a terminal and the second device can be a base station; or, the first device can be a terminal and the second device can be a base station; or, the first device and the second device can be both base stations; or, the first device and the second device can be both terminals; the third device can be a core network perception network function or a perception network element, or it can be another base station or terminal.

[0113] In the second scenario, single-base sensing, a first device transmits a target signal and receives the echo for measurement. The first device then reports the measurement results to a third device. The first device can be a terminal or a base station (or TRP), and the third device can be a core network sensing network function or sensing network element, or another base station or terminal.

[0114] In an embodiment of the present application, the first device is a signal sending device (for single-base perception, it is also a receiving device); the second device is a signal receiving device; and the third device is a device that participates in the perception service process but does not send or receive signals.

[0115] In this embodiment of the present application, a first device generates a ZC sequence whose length is a prime number. The first device transmits a target signal whose sequence includes the ZC sequence, and the target signal is used for measurement. Because the target signal sequence includes a ZC sequence whose length is a prime number, and ZC sequences whose length is a prime number have good cross-correlation performance and good PAPR performance, measurement performance can be improved.

[0116] As an optional implementation manner, the first device generates a ZC sequence, including:

[0117] The first device generates the ZC sequence according to a ZC sequence parameter, where the ZC sequence parameter includes at least one of the following:

[0118] The length of the ZC sequence, the ZC sequence root sequence number, the ZC sequence cyclic shift factor, and the ZC sequence parameter configuration index.

[0119] Among them, at least one of the above-mentioned ZC sequence parameters may be received by the first device from other devices, or at least one of the ZC sequence parameters may be determined by the first device based on measurement requirements (such as perception requirements), or at least one of the ZC sequence parameters may be agreed upon by the protocol.

[0120] The ZC sequence parameter configuration index is used to represent at least one ZC sequence parameter. For example, the first device obtains multiple sets of ZC sequence parameter configurations. In this way, the ZC sequence parameter configuration corresponding to the ZC sequence can be directly determined through the index, thereby saving configuration overhead.

[0121] The length of the ZC sequence may be determined based on resources used to carry the target signal, and the length of the ZC sequence may be a length that meets prediction requirements, such as a length that meets perception requirements.

[0122] In some embodiments, the length of the ZC sequence satisfies at least one of the following relationships:

[0123] The length of the ZC sequence is less than or equal to the total number of frequency domain resource units used to carry the target signal;

[0124] The length of the ZC sequence is greater than or equal to the minimum total number of frequency domain resource units, and the minimum total number of frequency domain resource units is the minimum total number of frequency domain resource units that meets measurement requirements.

[0125] The total number of frequency domain resource units mentioned above may be the total number of frequency domain resource units allocated by the system to carry the target signal.

[0126] The total number of frequency domain resource units may be determined according to the total bandwidth allocated to the target signal; or

[0127] The total number of the frequency domain resource units is equal to the product of the number of resource blocks RBs used to carry the target signal and the number of subcarriers in a single RB; or

[0128] The total number of frequency domain resource units is equal to the product of the number of resource blocks (RBs) used to carry the target signal and the frequency domain density of the target signal; or

[0129] The total number of frequency domain resource units is equal to the quotient obtained by dividing the number of first subcarriers by the adjacent subcarrier offset used to carry the target signal, and the number of first subcarriers is equal to the product of the number of RBs used to carry the target signal and the number of subcarriers in a single RB.

[0130] For example: the total number of frequency domain resource units used to carry signals is N total (N total ≥N ZC ), the length of the ZC sequence N ZCis not greater than N total The maximum prime number of; Among them, the total number of frequency domain resource units N used to carry the target signal total It can be the total bandwidth B of the target signal allocated by the system total For an Orthogonal Frequency Division Multiplexing (OFDM) system, the frequency domain resource unit may be a subcarrier.

[0131] When the frequency domain resource units carrying the target signal are continuous in the frequency domain, the total number of frequency domain resource units N used to carry the target signal is total The calculation method is: Among them, N RB The number of RBs allocated to the system for carrying the first signal, The number of subcarriers in each RB, generally taken as

[0132] When the frequency domain resource units carrying the target signal are discontinuous in the frequency domain, the total number of frequency domain resource units N used to carry the target signal is total The calculation method is:

[0133] in, Indicates the adjacent subcarrier offset parameter carrying the target signal, that is, the number of subcarriers between them; or expressed as: N total =N RB ·ρ f , where ρ f Indicates the frequency domain density of the target signal, that is, the number of subcarriers used to carry the first signal in each RB.

[0134] In this embodiment, the length of the ZC sequence is less than or equal to the maximum prime number of the total number of frequency domain resource units used to carry the target signal. This allows a longer sequence to be transmitted as much as possible within the frequency domain resources used to carry the target signal, thereby improving the transmission performance of the target signal.

[0135] In some implementation manners, the minimum total number of frequency domain resource units is equal to an integer obtained by dividing the minimum frequency domain resource length by the maximum frequency domain resource interval; or

[0136] The total number of minimum frequency domain resource units is equal to the product of the minimum frequency domain resource length and the number of subcarriers in a single RB; or

[0137] The total number of the minimum frequency domain resource units is equal to the product of the minimum frequency domain resource length and the frequency domain density of the target signal; or

[0138] The minimum total number of frequency domain resource units is equal to the quotient obtained by dividing the second number of subcarriers by the maximum number of subcarriers of adjacent subcarrier spacings used to carry the target signal, and the second number of subcarriers is equal to the product of the minimum frequency domain resource length and the number of subcarriers in a single RB;

[0139] The minimum frequency domain resource length is the minimum frequency domain resource length that meets the delay resolution in the measurement requirement, or the minimum frequency domain resource length is the minimum frequency domain resource length that meets the distance resolution in the measurement requirement;

[0140] The maximum frequency domain resource interval is a maximum frequency domain resource interval determined according to a maximum unambiguous range of delay in the measurement requirement, or the maximum frequency domain resource interval is a maximum frequency domain resource interval determined according to a maximum unambiguous range of distance in the measurement requirement.

[0141] The measurement requirement may be a perception requirement, for example, the length of the ZC sequence is not less than the minimum total number of frequency domain resource units N required to meet the perception requirement. min The smallest prime number, N ZC is not less than N min The smallest prime number.

[0142] The method for determining the minimum total number of frequency domain resource units required to meet the above-mentioned perception requirements may be: determining the minimum frequency domain resource length B according to the delay / distance resolution requirements in the perception requirements min (i.e. the minimum required signal bandwidth), and determine the maximum frequency domain resource unit spacing ΔF based on the maximum unambiguous range requirement for latency / distance in the perception requirements max , the minimum total number of frequency domain resource units can be calculated as follows:

[0143] in Indicates rounding X upwards.

[0144] For OFDM system, the minimum frequency domain resource length B min It can also be expressed as the minimum number of RBs When the frequency domain resource units carrying the target signal are continuous in the frequency domain, the maximum frequency domain resource unit interval ΔF max That is, the OFDM subcarrier spacing Δf, the minimum total number of frequency domain resource units can be calculated as follows:

[0145] When the frequency domain resource units carrying the target signal are discontinuous in the frequency domain, the maximum frequency domain resource unit interval ΔF max It can also be expressed as the maximum number of subcarriers between adjacent subcarriers that carry the target signal. (It can also be expressed as the number of subcarriers with the maximum offset between adjacent subcarriers carrying the first signal). The above minimum total number of frequency domain resource units can be calculated as follows:

[0146] In some implementations, the frequency domain resource unit spacing can also be expressed as the frequency domain density ρ f Indicates the number of subcarriers used to carry the target signal in each RB. The above minimum total number of frequency domain resource units can be calculated as follows:

[0147] In some implementations, the frequency domain resource unit spacing may also be represented by a comb mapping parameter K comb Indicates, for example, comb1(K comb =1) continuous mapping in the frequency domain, comb2(K comb =2) means that sequence mapping is performed on every other subcarrier in the frequency domain (for example, the target signal occupies subcarriers 0, 2, 4, ...), comb4(K comb =4) indicates that sequence mapping is performed every three subcarriers in the frequency domain (for example, the target signal occupies subcarriers 0, 4, 8, ...).

[0148] Since the length of the ZC sequence is greater than or equal to the total number of minimum frequency domain resource units, the target signal can meet the measurement requirements, thereby improving the measurement performance.

[0149] In some embodiments, the ZC sequence root sequence number is associated with at least one of the following:

[0150] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0151] The above-mentioned information related to the sensing service includes at least one of the following:

[0152] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

[0153] The above-mentioned perception measurement range identifier may indicate the range of the perception measurement area.

[0154] The above-mentioned perception area identifier may indicate a perception measurement area.

[0155] In some embodiments, the sensing area is a target area to be sensed, and may be divided in advance.

[0156] For example: multiple base station coverage areas (cells) form a perception area, associated with a perception area identifier n areaID As shown in Figure 5, each hexagonal area represents a base station coverage area, and areas of the same color represent the same perception area. In particular, a RAN-based notification area (RNA) can be used as a perception area, and the RNA identifier (ID) can be used as the perception area identifier.

[0157] For example, a single base station coverage area (cell) contains multiple sensing areas, which are associated with multiple sensing area identifiers. For example, with the base station as the origin, its coverage area is rasterized and divided into multiple sensing areas, and each area is associated with an area ID recorded as n. areaID ,As shown in Figure 6, the dotted line represents the base station ,coverage area, and each square represents the divided sensing area.

[0158] Another example: directly use the geographical area identifier such as longitude and latitude or coordinate position that has nothing to do with the base station location to generate the area ID n areaID .

[0159] Another example: different angle ranges relative to the base station are associated with different area IDs n areaID For example, the azimuth angle x1°~x2° and the pitch angle y1°~y2° correspond to the sensing area ID1.

[0160] The flag for whether it is used for perception can be n sensingID =0; when used for perception n sensingID =1.

[0161] Different sensing services correspond to different sensing service identifiers ID n sensingID , or, different categories correspond to different perception service identifiers ID n sensingID , for example, the perception functions or business types are divided according to the scope and scale, for example:

[0162] Category 1 (close distance / small range): material analysis, component analysis, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, respiratory monitoring, heart rate monitoring, pulse monitoring, etc.

[0163] Category 2 (medium distance / medium range): intrusion detection, population counting, indoor positioning, etc.

[0164] Category 3 (long distance / large range): humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, etc.

[0165] Other classification standards can also be used, such as classification based on function into positioning perception, imaging perception, pattern recognition perception, etc.; classification based on power consumption / energy consumption, classification based on resource occupancy, etc.

[0166] The above-mentioned measurement quantity information may be a measurement quantity identifier, and at least one of the perceived measurement quantities is associated with a measurement quantity identifier, for example, as shown in Table 2:

[0167] Table 2

[0168] The label identifier associated with the above-mentioned perception target can be a different perception target identifier corresponding to different perception targets. targetID , wherein the determination of the perception target can be based on prior information obtained from existing measurement results. For example, base station A sends a perception measurement signal through an omnidirectional beam to perform preliminary measurement, base station A obtains a range-Doppler map (or a range-angle map, etc.), determines the number of targets based on the range-Doppler map, and assigns an ID to each target; alternatively, base station A sends a perception measurement signal through an omnidirectional beam to perform preliminary measurement, and a receiving device (such as another base station or terminal) obtains a range-Doppler map (or a range-angle map, etc.), determines the number of targets based on the range-Doppler map, assigns an ID to each target, and then notifies the sending base station of the target ID and / or target-related information.

[0169] After the first device determines the ID of each perception target, it generates signals for perceiving different targets according to different perception target IDs, and these perception signals are sent using different beams, with the beam direction pointing to the perception target associated with the target ID.

[0170] The identification of the above-mentioned perception target can also be an identification of the perception target type. Different types correspond to different perception target identifications, for example, they are divided into stationary targets and moving targets. The latter can be further divided into high-speed targets and low-speed targets. Different types of targets correspond to different n targetID .

[0171] In some implementations, the sensing target is equipped with a tag, and different tags are associated with different tag IDs. The transmitting device obtains the tag ID of the corresponding target and then obtains the signal used to sense the different targets. The tag can be a device that supports backscatter communication, and its excitation source can be a device other than the tag, or the excitation source can be the tag itself. It can also be a terminal (User Equipment, UE), that is, a terminal equipped with a common transceiver module, such as a communication device installed in a car, such as an in-vehicle terminal.

[0172] Since the ZC sequence root sequence number is associated with the information related to the perception service, it can make it easier for the determined ZC sequence to match the perception service, thereby improving the perception performance.

[0173] The information of the device participating in the sensing may be an identifier of the device participating in the sensing, such as a cell identifier or a terminal identifier of the device, such as a Radio Network Temporary Identity (RNTI).

[0174] Since the ZC sequence root number is associated with the information of the devices participating in the perception, this makes it easier for the determined ZC sequence to match the perception, thereby improving the perception performance.

[0175] The frequency domain resource related information of the above-mentioned target signal may include at least one of the following: RE index, RB index, frequency point information, frequency band information, bandwidth, frequency domain density, and subcarrier spacing.

[0176] The time domain resource information of the target signal may include at least one of the following:

[0177] Radio frame index, subframe index, slot index, symbol index, duration, time domain density, cyclic prefix (CP) type, CP length, coherent processing time window index, and number of coherent processing time windows;

[0178] The line frame index, subframe index, slot index, and symbol index may be at least one of the following:

[0179] Radio frame index and subframe index defined by the communication system;

[0180] Perceive the relative radio frame index and subframe index within the coherent processing time window / perceive the relative radio frame index and subframe index within the resource block;

[0181] Symbol index within the time slot

[0182] Symbol index within the coherent processing time window;

[0183] Perceive the symbol index within the resource block;

[0184] A timeslot index within a radio frame;

[0185] The time slot index within the coherent processing time window;

[0186] The time slot index within the sensing resource block.

[0187] The length of the coherent processing window may be the length of the time domain resources used to calculate a single measurement result. For example, the coherent processing time window may be the time window for each calculation and output of a perception measurement result, such as the time domain resource length corresponding to a range-Doppler map obtained by performing a two-dimensional FFT operation. The coherent processing window may include multiple time slots or symbols. In some implementations, the length of the coherent processing window may be agreed upon by protocol or communicated by a network-side device or a device performing the measurement.

[0188] In some embodiments, the time domain or frequency domain resource information of the above-mentioned target signal can also introduce a perception resource block index, wherein the perception resource block includes multiple physical resource blocks (PRBs) and multiple time slots or symbols, that is, the perception resource block includes specific time and frequency domain resources, such as performing a two-dimensional FFT operation to obtain the frequency domain resource length and time domain resource length corresponding to the range-Doppler map.

[0189] The above-mentioned information related to the airspace resources of the target signal may include at least one of the following:

[0190] Antenna port index, number of antenna ports, Code Division Multiplexing (CDM) group index, number of CDM groups, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum number of antennas, maximum number of antenna groups, maximum number of antenna subarrays, maximum number of antenna panels.

[0191] Since the ZC sequence root sequence number is associated with the frequency domain resource related information of the target signal, the time domain resource information of the target signal, or the spatial domain resource related information of the target signal, this makes it easier for the determined ZC sequence to match the resources of the target signal, thereby improving measurement performance.

[0192] The sequence identifier is used to identify the ZC sequence. The sequence identifier may be configured by a higher layer, or a specific value of the sequence identifier may be determined based on at least one of the following:

[0193] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, and spatial domain resource related information of the target signal.

[0194] Since the ZC sequence root number is associated with the sequence identifier, the ZC sequence root number can be determined simply and quickly through the sequence identifier, thereby reducing complexity.

[0195] It should be noted that the association between the ZC sequence root number and the at least one item may mean that the ZC sequence root number may be determined based on the at least one item. The specific method may be agreed upon in an agreement or determined based on a mapping relationship between the at least one item and the ZC sequence root number, and is not limited to this.

[0196] In some embodiments, the ZC sequence cyclic shift factor is associated with at least one of the following:

[0197] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0198] Among them, the above-mentioned perception service-related information, information of the devices participating in the perception, frequency domain resource-related information of the target signal, time domain resource information of the target signal, spatial domain resource-related information of the target signal, the length of the ZC sequence, and the sequence identifier refer to the corresponding description of the above-mentioned implementation method and are not limited here.

[0199] Since the ZC sequence cyclic shift factor is associated with the perceptual service related information, the determined ZC sequence can be more easily matched with the perceptual service, thereby improving the perceptual performance.

[0200] Since the ZC sequence cyclic shift factor is associated with the information of the devices participating in the perception, this can make the determined ZC sequence easier to match with the perception, thereby improving the perception performance.

[0201] Since the ZC sequence cyclic shift factor is associated with the frequency domain resource related information of the target signal, the time domain resource information of the target signal, or the spatial domain resource related information of the target signal, this makes it easier for the determined ZC sequence to match the resources of the target signal, thereby improving measurement performance.

[0202] The sequence identifier is used to identify the ZC sequence. The sequence identifier may be configured by a higher layer, or a specific value of the sequence identifier may be determined based on at least one of the following:

[0203] Since the ZC sequence cyclic shift factor is associated with the sequence identifier, the ZC sequence cyclic shift factor can be determined simply and quickly through the sequence identifier, thereby reducing complexity.

[0204] It should be noted that the association between the ZC sequence cyclic shift factor and the at least one item may mean that the ZC sequence cyclic shift factor may be determined based on the at least one item. The specific method may be agreed upon by protocol or determined based on a mapping relationship between the at least one item and the ZC sequence cyclic shift factor, and is not limited to this.

[0205] In some implementations, the ZC sequence parameter configuration index is associated with at least one of the following:

[0206] The length of the ZC sequence, the resource unit interval of the frequency domain resources used to carry the target signal, the ZC root sequence number set, the maximum number of cyclic shifts allowed for any root sequence, and the number of frequency division multiplexing sequences.

[0207] The association of the ZC sequence parameter configuration index with the at least one item can be understood as the at least one item can be determined through the ZC sequence parameter configuration index, thereby saving configuration overhead.

[0208] For example, the first device obtains multiple configurations and determines at least one of the above items used by the target signal through the above ZC sequence parameter configuration index, such as the following Table 3 and Table 4.

[0209] Table 3:

[0210] Table 4:

[0211] In this way, the at least one item mentioned above can be determined through the ZC sequence parameter configuration index, thereby saving configuration overhead.

[0212] As a possible implementation manner, when the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal;

[0213] The frequency domain starting position k0 occupied by the ZC sequence is:

[0214] or,

[0215] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1;

[0216] or,

[0217] The frequency domain starting position k0 occupied by the ZC sequence is:

[0218] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1;

[0219] Among them, N RBis the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

[0220] The frequency domain starting position k0 occupied by the above-mentioned ZC sequence can be an offset equivalent to the frequency domain reference position. For example, if the total number of frequency domain resource units used to carry the target signal is 273 RBs, then the frequency domain starting position k0 occupied by the above-mentioned ZC sequence is an offset relative to the starting RE (RE0) of the 273 RBs.

[0221] In some implementations, when the ZC sequence is continuously mapped in the frequency domain, the frequency domain starting position k0 occupied by the ZC sequence is:

[0222] or,

[0223] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1.

[0224] Assuming that the total number of frequency domain resource units used to carry the target signal is 273 RBs, the calculated frequency domain starting position is The RE index to which the i-th element r(i) in the ZC sequence is mapped can be expressed as k i =k0+i, i=0, 1, 2, ..., 3270. The above ZC sequence is frequency-domain mapped in the manner shown in FIG7 to obtain the above target signal.

[0225] In some implementations, when the ZC sequence is mapped non-continuously in the frequency domain, the frequency domain starting position k0 occupied by the ZC sequence is:

[0226] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1.

[0227] Assuming that the total number of frequency domain resource units used to carry the target signal is 273 RBs, the calculated frequency domain starting position is The RE index to which the i-th element r(i) in the sequence is mapped can be expressed as i=0,1,2,…,818, the ZC sequence is non-continuously mapped in the frequency domain in the manner shown in FIG8 to obtain the above target signal.

[0228] The frequency domain starting position k0 occupied by the ZC sequence can enable the ZC sequence to be mapped to the frequency domain resources of the total number of frequency domain resource units used to carry the target signal, thereby improving the out-of-band characteristics of the target signal and further enhancing the measurement performance.

[0229] It should be noted that the embodiment of the present application is not limited to determining the mapping position of the ZC sequence by the above k0. For example, when the total number of frequency domain resource units used to carry the target signal is greater than the ZC sequence length, that is, N total >N ZC When the ZC sequence is mapped, the vacant frequency domain resource units that do not carry the target signal are placed on both sides of the frequency domain resource units that carry the target signal. That is, the ZC sequence mapping adopts a center-symmetric frequency domain resource mapping method, and the sequence occupies the frequency domain resource units in the center.

[0230] As an optional implementation manner, when the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource;

[0231] The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different;

[0232] The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

[0233] The above-mentioned time domain resources may be time domain resource units such as OFDM symbols, sub-time slots, and time slots.

[0234] The different ZC sequences corresponding to the above-mentioned target signal on the first time domain resource and the second time domain resource may mean that there are time domain resources with different corresponding ZC sequences among the above-mentioned multiple time domain resources, such as the ZC sequences corresponding to the target signals on different time domain resource units are the same.

[0235] Since the ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different, this can make the target signal have better correlation characteristics in the first time domain resource and the second time domain resource, and is conducive to interference randomization, further improving measurement performance.

[0236] The same ZC sequence corresponding to the target signal on the third time domain resource and the fourth time domain resource may mean that there are time domain resources with the same corresponding ZC sequence among the multiple time domain resources, such as the target signals on different time domain resource units have different ZC sequences.

[0237] Since the ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same, sequence overhead can be saved.

[0238] In some embodiments, the ZC sequence difference includes at least one of the following:

[0239] The root sequence number of the ZC sequence is different;

[0240] The ZC sequence has different cyclic shift factors.

[0241] For example, the ZC sequence root numbers corresponding to target signals on different time domain resources are different;

[0242] Alternatively, the ZC sequence root numbers corresponding to target signals on different time domain resources are the same, but the cyclic shift factors are different;

[0243] Alternatively, the ZC sequence root numbers and cyclic shift factors corresponding to target signals on different time domain resources are different.

[0244] As an optional implementation manner, when the target signal is sent by multiple antenna ports, the target signal is time-division multiplexed or frequency-domain multiplexed on the multiple antenna ports;

[0245] In the case where the resource patterns of the target signal at multiple antenna ports are the same, the multiple antenna ports include a first antenna port and a second antenna port, and the ZC sequences corresponding to the target signal at the first antenna port and the second antenna port are different.

[0246] Since the ZC sequences corresponding to the target signal on the first antenna port and the second antenna port are different, this can make the target signal have better correlation characteristics, and is conducive to interference randomization, further improving measurement performance.

[0247] In some implementations, the time domain sequences of target signals on different antenna ports are different.

[0248] As an optional implementation, the method further includes:

[0249] The first device obtains signal configuration information of the target signal, where the signal configuration information includes at least one of the following:

[0250] The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, Quasi Co-Location (QCL) relationship, and Cyclic Prefix (CP) information of the ZC sequence.

[0251] The sequence generation information is used to generate the ZC sequence, and may include at least one of the following:

[0252] An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meets measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

[0253] The identifier that the ZC sequence length is a prime number is used to indicate that the length of the ZC sequence of the target signal is a prime number. By using the identifier that the ZC sequence length is a prime number, it is possible to avoid having to specifically indicate the length of the ZC sequence, thereby saving signaling overhead. For example, the sender and receiver of the target signal can determine the length of the ZC sequence according to the above-mentioned method for determining the length of the ZC sequence, such as based on the total number of frequency domain resource units carrying the target signal being N. total Or the number of RBs carrying the target signal, N RB Calculate the closest prime number to get the length of the ZC sequence.

[0254] The adjacent subcarrier offset for carrying the target signal can be the number of subcarriers spaced between adjacent subcarriers for carrying the target signal, such as the number of OFDM subcarriers spaced, or the adjacent subcarrier offset parameter for carrying the target signal.

[0255] The minimum total number of frequency domain resource units that meets the measurement requirements can be the minimum total number of frequency domain resource units N required to meet the perception requirements. min Or the minimum frequency domain resource length B min (i.e. minimum bandwidth requirement) or minimum number of RBs

[0256] The associated information of the ZC sequence root number may be associated information used to calculate the ZC sequence root number, such as including at least one of the following:

[0257] Perception service related information, equipment information, time domain resource related information, frequency domain resource related information, air domain resource related information, etc.

[0258] The associated information of the ZC sequence cyclic shift factor may be associated information used to calculate the ZC sequence cyclic shift factor, such as including at least one of the following:

[0259] Perception service related information, equipment information, time domain resource related information, frequency domain resource related information, air domain resource related information, etc.

[0260] The parameter configuration index information of the ZC sequence is index information associated with at least one of the sequence length, the mapped resource unit interval, the root sequence number set, and the maximum number of cyclic shifts allowed by any root sequence. For example, several preset lengths of ZC sequences are specified for perception, and the index indicates which preset length is used.

[0261] The sequence identifier is the identifier of the above-mentioned ZC sequence.

[0262] The above signal resource identifier is used to distinguish different signal resource configurations;

[0263] The signal usage is used to indicate whether the target signal is a measurement signal, a perception signal, or a signal used for both communication measurement and perception. Specifically, it may also indicate which perception service the signal is used for, or which type of perception service the signal is used for. The perception service includes at least one of the following:

[0264] Detect target presence, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, classification, radar cross-section RCS (Radar Cross Section, RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, population statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.; the perception service type can be to classify multiple different perception services according to certain characteristics, for example, according to function, it can be divided into detection-type perception services (for example, including intrusion detection, fall detection), parameter estimation-type perception services (distance, angle, speed calculation), recognition-type perception services (motion recognition, identity recognition), etc., and can also be divided according to the range of perception (close-range perception, medium-range perception, long-range perception), according to the degree of perception fineness (coarse-grained perception, fine force perception, etc.), according to power consumption / energy consumption, according to resource occupancy, etc.

[0265] The waveform may be OFDM, single-carrier frequency-division multiple access (SC-FDMA), orthogonal time-frequency space (OTFS), frequency modulated continuous wave (FMCW), or a pulse signal;

[0266] The above subcarrier spacing may be the subcarrier spacing of an OFDM system, for example, 30 kHz.

[0267] The guard interval can be the time interval from the moment the signal ends to the moment the latest echo signal of the signal is received. This parameter is proportional to the maximum sensing distance. For example, it can be calculated by c / (2R max ) is calculated, R max is the maximum perception distance (belonging to the perception demand information), such as for the self-transmitted and self-received perception signal, R max Represents the maximum distance between the perceived signal transceiver point and the signal transmission point; in some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval, and c is the speed of light.

[0268] The above frequency domain starting position may be a starting frequency point or a starting RE or RB index.

[0269] The above-mentioned ending frequency domain position, that is, the ending frequency point, can be represented by the ending RE and RB index.

[0270] The above-mentioned time domain starting position can be a starting time point, or a starting symbol, time slot, or frame index.

[0271] The time domain resource length may be a burst duration, and the time domain resource length is inversely proportional to the Doppler resolution (which is perception requirement information).

[0272] The time domain resource interval may be a time interval between two adjacent signals, and the time domain resource interval is associated with a maximum unambiguous Doppler frequency shift or a maximum unambiguous speed.

[0273] The above time domain characteristics meet at least one of the following: periodic transmission, semi-continuous transmission, and aperiodic transmission.

[0274] The above signal power may be an interval power value, for example, a value is taken every 2dBm from -20dBm to 23dBm.

[0275] The above-mentioned signal direction may be angle information or beam information of signal transmission.

[0276] The above QCL relationship may indicate that the above signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes type A, type B, type C, or type D.

[0277] The cyclic prefix CP information may include a CP type or a CP length, for example, a normal cyclic prefix (NCP), an extended cyclic prefix (ECP), or a newly designed CP dedicated to perception measurement.

[0278] Since the signal configuration information for acquiring the target signal is obtained, the target signal can be generated based on the signal configuration information for acquiring the target signal, thereby making the target signal more conducive to measurement, thereby further improving measurement performance.

[0279] It should be noted that, in some implementations, all or part of the content included in the above-mentioned signal configuration information may be a protocol agreement or a network-side device configuration.

[0280] In some implementations, the signal configuration information is determined according to measurement requirements.

[0281] The above signal configuration information is determined according to the measurement requirement, which can be understood as determining the configuration information of the above target signal so that the measurement of the target signal meets the measurement requirement.

[0282] Since the signal configuration information is determined according to the measurement requirement, the measurement can meet the measurement requirement.

[0283] The signal configuration information may be determined by the first device based on measurement requirements, or by another device based on measurement requirements. For example, the first device obtains the signal configuration information of the target signal, including:

[0284] The first device determines signal configuration information of the target signal based on a measurement requirement;

[0285] The first device receives signal configuration information of the target signal.

[0286] The signal configuration information of the target signal received by the first device may be signal configuration information sent by the second device or the third device, where the signal configuration information is determined by the second device or the third device based on measurement requirements.

[0287] For example, before a first device sends a target signal to a second device, the second device obtains signal configuration information or perception requirement information of the target signal. The second device obtaining the signal configuration information or perception requirement information of the target signal may be the first device sending the signal configuration information or perception requirement information of the target signal to the second device, or the third device sending the signal configuration information or perception requirement information of the target signal to the second device.

[0288] For another example, before a first device sends a target signal to a second device, the first device obtains signal configuration information or perception requirement information of the target signal. The first device obtaining the signal configuration information or perception requirement information of the target signal may be caused by the second device sending the signal configuration information or perception requirement information of the target signal to the first device, or by a third device sending the signal configuration information or perception requirement information of the target signal to the first device.

[0289] For another example: before the first device sends the target signal and receives the echo for measurement, the first device obtains the signal configuration information or perception requirement information of the target signal. The first device obtains the signal configuration information or perception requirement information of the target signal which may be the signal configuration information or perception requirement information of the target signal sent by the third device to the first device.

[0290] In some embodiments, when the measurement is perception, the measurement requirement is perception requirement information, and the perception requirement information includes at least one of the following:

[0291] Perceiving services or perceiving service types, wherein the perceiving services or perceiving service types refer to the corresponding descriptions of the above embodiments and are not described in detail here;

[0292] The perception target area may refer to a location area where the perception object may exist, or a location area where imaging or environmental reconstruction is required;

[0293] Perception object type: the perception object type can be used to classify the perception object according to its possible motion characteristics. Each perception object type contains information such as the motion speed, motion acceleration, and typical RCS of a typical perception object.

[0294] Perception QoS, which can be a performance indicator for perceiving a target area or object, includes at least one of the following:

[0295] Perception resolution, which can be divided into: ranging resolution, angle resolution, velocity resolution, imaging resolution, etc.;

[0296] Perception accuracy can be divided into: ranging accuracy, angle measurement accuracy, speed measurement accuracy, positioning accuracy, etc.

[0297] Perception range, which can be divided into: ranging range, speed measurement range, angle measurement range, imaging range, etc.;

[0298] Perception delay: Perception delay can be the time interval from the sending of the perception signal to the acquisition of the perception result, or the time interval from the initiation of the perception demand to the acquisition of the perception result;

[0299] Perception update rate, such as the time interval between two consecutive perception executions and the acquisition of perception results;

[0300] Detection probability, such as the probability of correctly detecting the perceived object when it is present;

[0301] Recognition probability (used in multivariate detection scenarios, indicating the probability of correctly detecting a target state or category when the target is in a specific state or belongs to a specific category);

[0302] False alarm probability, i.e. the probability of incorrectly detecting a perceived target when the perceived target does not exist;

[0303] The maximum number of targets that can be perceived.

[0304] As an optional implementation manner, the target signal is used for measurement by the second device, or the target signal is used for measurement by the first device; and the method further includes at least one of the following:

[0305] In a case where the target signal is used for measurement by the second device, the first device sends measurement configuration information to the second device;

[0306] In a case where the target signal is used for measurement by a first device, the first device receives measurement configuration information.

[0307] The foregoing receiving of the measurement configuration information by the first device may be that the first device receives the measurement configuration information sent by the third device.

[0308] In some implementations, the measurement configuration information includes at least one of the following:

[0309] Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

[0310] The resource information measured above may include at least one of a signal resource identifier, a signal port index, a beam identifier, and a beam pair identifier.

[0311] The measurement rule information is used to indicate the measurement of the measurement, and the measurement rule information may include at least one of the following:

[0312] Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points;

[0313] The measurement window information includes at least one of the following:

[0314] Frequency domain measurement window, time domain measurement window, target dimension measurement window.

[0315] The above frequency domain measurement window is the same as the length N of the ZC sequence ZC The associated measurement window may include, for example, a starting frequency domain position and a frequency domain resource length.

[0316] The above time domain measurement window is the same as the length L or L of the ZC sequence ZC The associated measurement window, L, represents the length of the time domain resource used to carry the target signal. ZC is a prime number not less than L. For example, the time domain measurement window may include an indication of the starting time domain position and the time domain resource length.

[0317] The above target dimensions include at least one of the following:

[0318] Delay dimension, Doppler dimension, azimuth dimension, elevation dimension, and combined dimension;

[0319] The combination dimension includes at least two of the following combination dimensions:

[0320] Delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0321] The above-mentioned combined dimension can be a dimension that combines at least two of the delay dimension, Doppler dimension, azimuth dimension and elevation angle dimension, for example, the delay-Doppler dimension, the delay-Doppler-angle dimension, etc.

[0322] Among them, the above-mentioned target dimension measurement window is associated with information in the perception requirement or prior information of the perception target, such as being associated with the target area or speed. The above-mentioned target dimension measurement window can also be associated with sequence characteristics (such as cyclic shift factors).

[0323] Since the target dimension measurement window is included, when measuring the target dimension, the reliability of the measurement can be improved.

[0324] The number of sampling points for time domain calculation may specifically be the number of discrete Fourier transform (DFT) or FFT points, or an oversampling factor, etc.

[0325] The number of sampling points for frequency domain calculation may be the number of points of Inverse Discrete Fourier Transform (IDFT) or Inverse Fast Fourier Transform (IFFT), or an oversampling factor.

[0326] In some embodiments, the time domain measurement window can be indicated by the time domain measurement interval, the frequency domain measurement interval, the number of time domain calculation sampling points, and the number of frequency domain calculation sampling points, or the frequency domain measurement window associated with the frequency domain resource set can be indicated by the time domain measurement interval, the frequency domain measurement interval, the number of time domain calculation sampling points, and the number of frequency domain calculation sampling points.

[0327] In some embodiments, the above-mentioned time domain measurement window and frequency domain measurement window can be jointly used to indicate the two-dimensional resource range of the time and frequency domain used for measurement; or, only at least one of the time domain measurement window or the frequency domain measurement window is indicated, and the measurement window of the other dimension defaults to the frequency domain range corresponding to the starting frequency domain resource unit and the ending frequency domain unit of the frequency domain ZC sequence mapping (which can be determined based on the length of the frequency domain ZC sequence and the frequency domain mapping rule), or the time domain range corresponding to the starting time domain resource unit and the ending time domain unit of the time domain sequence mapping (which can be determined based on the length of the time domain sequence and the time domain mapping rule).

[0328] In some embodiments, the first device can use the oversampled DFT vector to perform Doppler calculation, for example, the number of time domain resource sampling points (number of symbols) of the target signal in the time domain measurement window is N1, the number of time domain DFT points indicated in the measurement indication information is N2, the oversampling factor is O1, and N2>N1. Assuming that the first device feeds back the index value corresponding to the sample point with the maximum power / amplitude in the Doppler domain dimension or the power / amplitude exceeds the preset threshold, then according to the DFT point number and oversampling factor indicated by the measurement indication information, the first device obtains channel information based on the received target signal, and performs DFT calculation to obtain the number of sample points along the Doppler domain dimension as N2*O1, where the index value corresponding to the sample point with the maximum power / amplitude or the power / amplitude exceeds the preset threshold is X (0≤X≤N2*O1-1), then X is fed back, or the basic DFT sample value index X1 (0≤X1≤N2-1) and oversampling index X2 (0≤X2≤O1-1) corresponding to the sample point with the maximum power / amplitude or the power / amplitude exceeds the preset threshold are fed back, where X=X1*O1+X2.

[0329] In the embodiment of the present application, the perception measurement quantities can be divided into the following categories:

[0330] The first-level measurement quantity (also known as the received signal / original channel information) includes at least one of the following:

[0331] Received signal / channel response complex results, amplitude / phase, I-path / Q-path and related operation results (operations including addition, subtraction, multiplication, and division, matrix addition, subtraction, multiplication, and division, matrix transposition, trigonometric operations, square root operations, and power operations, as well as threshold detection results and maximum / minimum value extraction results of the above operation results; wherein, operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform, and digital filtering, as well as threshold detection results and maximum / minimum value extraction results of the above operation results);

[0332] The second-level measurement quantity (also called the basic measurement quantity) includes at least one of the following: delay, Doppler, angle, intensity, and their multi-dimensional combination representation; the multi-dimensional combination representation can be, for example, a delay-Doppler spectrum, a delay-angle spectrum, or a delay-Doppler-angle spectrum;

[0333] The third level of measurement (also known as basic attributes / states) includes at least one of the following: distance, speed, direction, spatial position, acceleration;

[0334] The fourth level of measurement (also known as advanced attributes / states) includes at least one of the following: target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0335] The above-mentioned reporting configuration may indicate a criterion for reporting the measurement result of the first device or the second device, for example, including at least one of a reported time-frequency domain resource configuration, a reporting period, and a reported triggering event.

[0336] The triggering event includes at least one of the following:

[0337] Events of entering a specific area (e.g., a neighborhood);

[0338] Events arriving at a specific time;

[0339] An event where a certain type of measurement signal reaches a certain threshold;

[0340] Events where the device moves more than some predefined (linear) distance from its previous position;

[0341] Events where the device orientation changes by more than some predefined angles, where the device orientation can be the orientation of the device's antenna, screen, etc.

[0342] Events where the device's movement speed exceeds some predefined speed threshold;

[0343] An event in which changes in environmental information (such as temperature, humidity, or light intensity) measured by device sensors exceed a certain range.

[0344] The above-mentioned reporting configuration information can enable the first device to perform more reliable reporting.

[0345] It should be noted that, in the embodiment of the present application, the content included in the above-mentioned measurement configuration information can be sent through one or more signalings.

[0346] In some embodiments, the second device or the first device receives the target signal and performs measurement according to the above-mentioned signal configuration information or measurement configuration information to obtain a measurement result (such as the value of the perceived measurement quantity), and the second device reports feedback information to the first device or the third device, or the first device reports feedback information to the third device.

[0347] In this embodiment of the present application, a first device generates a ZC sequence whose length is a prime number. The first device transmits a target signal whose sequence includes the ZC sequence, and the target signal is used for measurement. Because the target signal sequence includes a ZC sequence whose length is a prime number, and ZC sequences whose length is a prime number have good cross-correlation performance and good PAPR performance, measurement performance can be improved.

[0348] Please refer to FIG9 , which is a flow chart of a measurement method provided in an embodiment of the present application. As shown in FIG9 , the method includes the following steps:

[0349] Step 901: The second device measures the target signal sent by the first device;

[0350] The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

[0351] Optionally, the ZC sequence root sequence number is associated with at least one of the following:

[0352] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0353] Optionally, the ZC sequence cyclic shift factor is associated with at least one of the following:

[0354] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0355] Optionally, the sensing service related information includes at least one of the following:

[0356] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

[0357] Optionally, when the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal;

[0358] The frequency domain starting position k0 occupied by the ZC sequence is:

[0359] or,

[0360] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1;

[0361] or,

[0362] The frequency domain starting position k0 occupied by the ZC sequence is:

[0363] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1;

[0364] Among them, N RB is the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

[0365] Optionally, in the case where the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource;

[0366] The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different;

[0367] The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

[0368] Optionally, the ZC sequence difference includes at least one of the following:

[0369] The root sequence number of the ZC sequence is different;

[0370] The ZC sequence has different cyclic shift factors.

[0371] Optionally, the method further includes:

[0372] The second device sends signal configuration information of the target signal to the first device, where the signal configuration information includes at least one of the following:

[0373] The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

[0374] Optionally, the sequence generation information includes at least one of the following:

[0375] An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the target signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meet measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

[0376] Optionally, the signal configuration information is determined according to measurement requirements.

[0377] Optionally, the method further includes:

[0378] The second device receives measurement configuration information.

[0379] Optionally, the measurement configuration information includes at least one of the following:

[0380] Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

[0381] Optionally, the measurement rule information includes at least one of the following:

[0382] Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points;

[0383] The measurement window information includes at least one of the following:

[0384] Frequency domain measurement window, time domain measurement window, target dimension measurement window.

[0385] Optionally, the target dimension includes at least one of the following:

[0386] Delay dimension, Doppler dimension, azimuth dimension, elevation dimension, and combined dimension;

[0387] The combination dimension includes at least two of the following combination dimensions:

[0388] Delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0389] Optionally, the measurement includes at least one of the following:

[0390] Perception measurement, communication measurement, and integrated perception and communication measurement.

[0391] It should be noted that this embodiment is an implementation of the second device corresponding to the embodiment shown in Figure 4. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 4. In order to avoid repeated description, this embodiment will not be repeated.

[0392] The following uses measurement as an example to illustrate the method provided in the embodiments of the present application through multiple embodiments:

[0393] Example 1:

[0394] This embodiment mainly illustrates the generation of ZC sequences of prime length and frequency domain mapping.

[0395] Assuming that the ZC sequence adopts continuous mapping in the frequency domain, the required target signal bandwidth is determined according to the distance resolution requirement in the perception requirement. For example, the number of target signal RBs to be scheduled is N RB =273, and then the total number of subcarriers is calculated as Then calculate the ZC sequence length to be no more than N total The largest prime number, N ZC =3271.

[0396] Determine the root sequence number of the ZC sequence. The value of the root sequence number q can be one of {1, 2, ..., 3270}. Its specific value is determined by the sensing service related information, device information, time and frequency domain resource related information, spatial domain resource related information, and the first sequence identifier described in the application plan. For the specific calculation method, please refer to Example 3.

[0397] Generate the ZC base sequence according to the ZC base sequence generation formula:

[0398] Determine the cyclic shift factor α of the ZC sequence, the value of the cyclic shift factor α is α=∈[0,2π), and its specific value is related to the perception service related information, device information, time and frequency domain resource related information, spatial domain resource related information, sequence identifier described in the application plan For the specific calculation method, please refer to Example 3.

[0399] The prime number length ZC sequence is obtained by cyclically shifting the generated ZC base sequence according to the cyclic shift factor α:

[0400] r(n)=e jαn x q (n), n=0,1,2,…,N ZC -1

[0401] Here, n in the above formula is also expressed as m.

[0402] The frequency domain mapping position of the ZC sequence is determined based on its length and frequency domain resources. The ZC sequence mapping adopts a center-symmetric frequency domain resource mapping method, and the sequence occupies the subcarriers in the center part. Among them, the frequency domain starting position k0 (i.e., the offset relative to the frequency domain reference position, such as the starting RE (RE0) of the 273 scheduled RBs) is:

[0403] or

[0404] Among them, N RB =273 is the number of RBs allocated by the system to carry the target signal, The number of subcarriers in each RB, generally taken as Indicates that X is rounded down. Indicates rounding X upwards.

[0405] Assume that the calculated frequency domain starting position

[0406] The RE index to which the i-th element r(i) in the sequence is mapped can be expressed as k i=k0+i, i=0, 1, 2, ..., 3270, that is, the prime length ZC sequence is subjected to frequency domain mapping in the manner shown in FIG7 to obtain the target signal.

[0407] Assuming that the ZC sequence adopts discontinuous mapping in the frequency domain, the required target signal bandwidth is determined according to the distance resolution requirement in the perception requirement. For example, the number of target signal RBs to be scheduled is N RB =273; Determine the maximum frequency domain resource interval of the target signal according to the maximum unambiguous distance requirement in the perception requirement Determine the adjacent subcarrier offset parameter carrying the target signal according to the maximum frequency domain resource interval (and the number of frequency division multiplexing sequences or the number of frequency division multiplexing CDM groups (different CDM groups occupy different frequency domain resources), or the number of target signal ports) Or it can also be expressed as the frequency domain density ρ f =3, or expressed as using comb4, that is, the comb mapping parameter K comb =4.

[0408] Alternatively, generally take If the number of sequences or CDM groups that need to be supported for frequency division multiplexing is less than You can also take For example, if the number of frequency division multiplexing sequences or the number of frequency division multiplexing CDM groups to be supported is 2, then That is, it is necessary to ensure that the frequency domain resource interval is not greater than the maximum frequency domain resource interval and can meet the number of supported frequency division multiplexing sequences or the number of target signal ports.

[0409] by As an example, the total number of subcarriers is calculated as Then calculate the ZC sequence length to be no more than N total The largest prime number, N ZC =819.

[0410] Generate a sequence of length N according to the ZC sequence generation formula ZC The sequence r(n), n = 0, 1, 2, ..., 818, calculates its frequency domain mapping position, that is, the frequency domain starting position k0 (that is, the offset relative to the frequency domain reference position, such as the starting RE (RE0) of the 273 scheduled RBs) as follows:

[0411] The RE index to which the i-th element r(i) in the sequence is mapped can be expressed as i=0,1,2,…,818, i.e. for length N ZC =819 ZC sequence is subjected to frequency domain non-continuous mapping in the manner shown in FIG8 to obtain the target signal.

[0412] The performance comparison of the perception signal generated by the prime length ZC sequence and the cyclic extension based ZC sequence is shown in Figure 10. ZC =3271, (i.e., frequency domain continuous mapping) configuration, generate the target signal according to the method provided in the embodiment, and generate M by cyclic extension CC =3276 length ZC sequence and continuously mapped to the frequency domain resources as a comparison signal.

[0413] Assuming that there are two different sensing targets in the environment, two ZC sequences with different root sequence numbers are used to sense the two targets. According to the simulation results, it can be seen that the signal generated using the solution of the present application has better perception performance (lower delay, Doppler, angle, and position coordinate root mean square error (RMSE)). That is, when the target signal provided by this embodiment is used for perception, for multi-user perception or multi-port perception, or simultaneous perception of multiple areas or targets, because the ideal cross-correlation characteristics of the ZC sequence are retained, interference between different signal resources can be effectively reduced, and perception performance can be improved. In addition, compared with the method of cyclically extending or truncating the ZC base sequence, it has better PAPR characteristics.

[0414] Example 2:

[0415] This embodiment mainly describes how to determine the ZC sequence characteristics according to the parameter configuration index.

[0416] In practical applications, the ZC sequence length may be flexibly calculated according to the process of embodiment 1, or may be one of several typical ZC sequence lengths defined by the protocol. When a perception measurement is required, an appropriate ZC sequence length is selected based on the perception requirement. The typical ZC sequence lengths include at least one of the following: 131, 271, 541, 811, 1091, 1637, and 3271. Alternatively, the ZC sequence length includes at least one of the following: 139, 571, 839, 1151, 1637, and 3271.

[0417] One implementation method is that the ZC sequence adopts a continuous mapping scheme by default, that is, it ensures that the maximum unambiguous distance measurement range can be achieved under the current subcarrier spacing configuration. ZC sequences of different lengths correspond to different target signal bandwidths, which are used to meet different perception distance resolution requirements. The selected ZC sequence length can be determined according to the specific perception service or perception service requirements, as shown in Table 3 above.

[0418] Another implementation is that the ZC sequence occupies the full bandwidth resource by default, that is, it ensures that the highest distance resolution can be achieved under the current subcarrier spacing configuration. ZC sequences of different lengths correspond to different frequency domain resource unit spacings to meet different maximum unambiguous distance requirements or multi-user / multi-port frequency domain resource multiplexing requirements, such as shown in Table 4 above. The multi-user / multi-port frequency domain resource multiplexing requirement is associated with the number of supported frequency division multiplexing sequences.

[0419] Example 3:

[0420] This embodiment mainly describes the calculation of the ZC sequence root sequence number and the cyclic shift factor.

[0421] In this embodiment, the ZC sequence root sequence number or cyclic shift factor is related to the sensing service information, device information, time-frequency domain resource information, spatial domain resource information, the length N of the ZC sequence ZC , sequence identifier At least one relationship in .

[0422] Among them, the above sequence identifier The system may determine the first sequence identifier based on at least one of the following information: sensing service related information, device information, time-frequency domain resource related information, and spatial domain resource related information. For example, different first sequence identifiers are determined based on different sensing areas or different base station / cell IDs. Assigned to the target signal generating and transmitting device. For example, based on the cell ID The low X bits are determined by the sensing area ID The high Y bit of .

[0423] The root sequence number q can be calculated as:

[0424] Where u∈{0,1,…,u max} is the group number, and v∈{0,1} is the sequence number within the group.

[0425] Among them, N1 is the maximum group number u max Or ZC sequence length N ZC An associated positive integer, for example, u max =29, N1=31; or, u max =59, N1=61 or 67; or, u max =89, N1=97; or, u max =119, N1=127 or 139; or, u max =149, N1=151 or 157; or, u max =179, N1=181 or 191;

[0426] In the above example, the maximum number of supported sequence groups is 180 (u max =179), and so on, more sequence groups can be supported, where the maximum group number meets N1 is greater than u max and less than N ZC prime number.

[0427] In practical applications, the group number u and the intra-group sequence number v can be calculated according to certain rules, and the calculation method can be based on at least one association among perception service related information, device information, time and frequency domain resource related information, and spatial domain resource related information.

[0428] For example, based on the time domain resource information and the target signal index, we can calculate: Where l' represents the symbol index, which can refer to the symbol index within the time slot. is the number of symbols in each time slot, or the symbol index in the coherent processing time window / perception resource block, at this time The number of symbols for each coherent processing time window / sensing resource block;

[0429] It is the group hopping parameter. When the high-level parameters indicate to enable group hopping, in is the time slot index within the radio frame when the subcarrier spacing is configured as μ, is the number of symbols in each time slot, l' refers to the symbol index in the time slot, that is, the symbol index currently carrying the target signal; or when the high-level parameter indicates to open group hopping, where n win is the coherent processing time window / sensing resource block index, is the number of symbols in each coherent processing time window / perception resource block, l′ refers to the symbol index in the coherent processing time window / perception resource block, that is, the symbol index currently carrying the target signal; when the high-level parameters indicate that group hopping is not enabled,

[0430] The calculation method of the sequence number v within the group can be, when the high-level parameters indicate to start sequence hopping, or When the high-level parameters indicate that sequence hopping is not enabled, v = 0. When both group hopping and sequence hopping are disabled, different symbols use the same ZC base sequence.

[0431] Where c(n) is a PN sequence element, and the PN sequence is generated according to the following formula: c(n) = (x1(n+N C )+x2(n+N C))mod2 x1(n+31)=(x1(n+3)+x1(n))mod2 x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2

[0432] Where n = 0, 1, ..., M PN -1, MPN is the sequence length. N C =1600, the first m sequence x 1 The initialization method of (n) is x1(0)=1,x1(n)=0,n=1,2,...,30; the initialization method of the second m sequence x2(n) is:

[0433] Alternatively, the root sequence numbers are not grouped, for example, the ZC sequence length N is determined ZC After that, determine the root sequence number set q∈{1,2,…,N ZC -1}, use the following formula to calculate the root sequence number: where x is a positive integer; or, or where n port is the port index, and y is a positive integer, that is, different ports use different root sequence numbers to generate different ZC base sequences.

[0434] The calculation method of the cyclic shift value can be in, represents the maximum cyclic shift value, Indicates the cyclic shift value used to generate the ZC sequence. The maximum cyclic shift value can be determined based on the sensing area or sensing distance range. Specifically, for single-base sensing, the maximum target delay corresponding to the sensing area or sensing distance range needs to be less than Where Δτ is the delay resolution. For bistatic sensing, the difference between the maximum target delay corresponding to the sensing area or sensing distance range and the LOS path or first arrival path delay needs to be less than That is, the limitation of the cyclic shift value on the delay estimation needs to be considered.

[0435] In actual applications, multiple maximum cyclic shift values ​​can be configured For example, it includes at least one of 1, 2, 4, 6, 8, and 12. Determine the maximum cyclic shift value Then, the cyclic shift value used in generating the ZC sequence is or, It can be determined based on at least one of the information related to the sensing service, the device information, the information related to the time and frequency domain resources, and the information related to the spatial domain resources. For example, when the ZC sequence adopts continuous mapping, that is, when frequency division multiplexing of different port signals is not supported, where n port is the port index, For example, when the ZC sequence adopts non-continuous mapping, that is, supports frequency division multiplexing of different port signals, That is, at this time, the ZC sequences corresponding to the ports using the same cyclic shift are mapped to different frequency domain resources, and the cyclic shift values ​​of the ZC sequences corresponding to different ports mapped to the same frequency domain resources are different.

[0436] In an embodiment of the present application, there is no need to impose strict restrictions on the sequence length in the perception service. It is sufficient that the ZC sequence length meets the bandwidth required for perception, thereby making the perception signal resource allocation more flexible and enabling the use of ZC sequences of prime length to obtain better PAPR performance and cross-correlation performance, which can effectively improve the perception performance.

[0437] The signal sending method provided in the embodiment of the present application can be executed by a signal sending device. In the embodiment of the present application, the signal sending device provided in the embodiment of the present application is described by taking the signal sending method executed by the signal sending device as an example.

[0438] The measurement method provided in the embodiment of the present application can be performed by a measuring device. In the embodiment of the present application, the measurement method performed by the measuring device is taken as an example to illustrate the measurement device provided in the embodiment of the present application.

[0439] Please refer to FIG11 , which is a structural diagram of a signal sending device provided in an embodiment of the present application. As shown in FIG11 , the signal sending device 1100 includes:

[0440] A generating module 1101 is configured to generate a ZC sequence, wherein the length of the ZC sequence is a prime number;

[0441] The first sending module 1102 is configured to send a target signal, where the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

[0442] Optionally, the first device generates a ZC sequence, including:

[0443] The first device generates the ZC sequence according to a ZC sequence parameter, where the ZC sequence parameter includes at least one of the following:

[0444] The length of the ZC sequence, the ZC sequence root sequence number, the ZC sequence cyclic shift factor, and the ZC sequence parameter configuration index.

[0445] Optionally, the ZC sequence root sequence number is associated with at least one of the following:

[0446] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0447] Optionally, the ZC sequence cyclic shift factor is associated with at least one of the following:

[0448] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0449] Optionally, the sensing service related information includes at least one of the following:

[0450] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

[0451] Optionally, the ZC sequence parameter configuration index is associated with at least one of the following:

[0452] The length of the ZC sequence, the resource unit interval of the frequency domain resources used to carry the target signal, the ZC root sequence number set, the maximum number of cyclic shifts allowed for any root sequence, and the number of frequency division multiplexing sequences.

[0453] Optionally, when the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal;

[0454] The frequency domain starting position k0 occupied by the ZC sequence is:

[0455] or

[0456] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1;

[0457] or,

[0458] The frequency domain starting position k0 occupied by the ZC sequence is:

[0459] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1;

[0460] Among them, N RB is the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

[0461] Optionally, in the case where the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource;

[0462] The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different;

[0463] The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

[0464] Optionally, the ZC sequence difference includes at least one of the following:

[0465] The root sequence number of the ZC sequence is different;

[0466] The ZC sequence has different cyclic shift factors.

[0467] Optionally, the device further comprises:

[0468] An acquisition module is configured to acquire signal configuration information of the target signal, where the signal configuration information includes at least one of the following:

[0469] The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

[0470] Optionally, the sequence generation information includes at least one of the following:

[0471] An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the target signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meet measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

[0472] Optionally, the signal configuration information is determined according to measurement requirements.

[0473] Optionally, the acquiring signal configuration information of the target signal includes:

[0474] Determining signal configuration information of the target signal based on measurement requirements;

[0475] Receive signal configuration information of the target signal.

[0476] Optionally, the target signal is used for measurement by the second device, or the target signal is used for measurement by the first device; and the apparatus further includes at least one of the following:

[0477] A second sending module, configured to send measurement configuration information to the second device when the target signal is used for measurement by the second device;

[0478] The receiving module is configured to receive measurement configuration information when the target signal is used for measurement of the first device.

[0479] Optionally, the measurement configuration information includes at least one of the following:

[0480] Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

[0481] Optionally, the measurement rule information includes at least one of the following:

[0482] Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points;

[0483] The measurement window information includes at least one of the following:

[0484] Frequency domain measurement window, time domain measurement window, target dimension measurement window.

[0485] Optionally, the target dimension includes at least one of the following:

[0486] Delay dimension, Doppler dimension, azimuth dimension, elevation dimension, and combined dimension;

[0487] The combination dimension includes at least two of the following combination dimensions:

[0488] Delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0489] Optionally, the measurement includes at least one of the following:

[0490] Perception measurement, communication measurement, and integrated perception and communication measurement.

[0491] The above-mentioned signal sending device can improve measurement performance.

[0492] In the embodiments of the present application, the signal transmitting device may be an electronic device, such as an electronic device having an operating system, or a component in an electronic device, such as an integrated circuit or chip. For example, the electronic device may be a terminal, or may be a device other than a terminal. For example, the terminal may include but is not limited to the types of terminals listed in the embodiments of the present application, and the other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0493] The signal sending device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment shown in Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0494] Please refer to FIG12 , which is a structural diagram of a measuring device provided in an embodiment of the present application. As shown in FIG12 , the measuring device 1200 includes:

[0495] A measurement module 1201 is configured to measure a target signal sent by a first device;

[0496] The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

[0497] Optionally, the ZC sequence root sequence number is associated with at least one of the following:

[0498] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0499] Optionally, the ZC sequence cyclic shift factor is associated with at least one of the following:

[0500] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0501] Optionally, the sensing service related information includes at least one of the following:

[0502] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

[0503] Optionally, when the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal;

[0504] The frequency domain starting position k0 occupied by the ZC sequence is:

[0505] or,

[0506] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1;

[0507] or,

[0508] The frequency domain starting position k0 occupied by the ZC sequence is:

[0509] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1;

[0510] Among them, N RB is the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

[0511] Optionally, in the case where the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource;

[0512] The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different;

[0513] The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

[0514] Optionally, the ZC sequence difference includes at least one of the following:

[0515] The root sequence number of the ZC sequence is different;

[0516] The ZC sequence has different cyclic shift factors.

[0517] Optionally, the device further comprises:

[0518] a sending module, configured to send signal configuration information of the target signal to the first device, where the signal configuration information includes at least one of the following:

[0519] The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

[0520] Optionally, the sequence generation information includes at least one of the following:

[0521] An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the target signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meet measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

[0522] Optionally, the signal configuration information is determined according to measurement requirements.

[0523] Optionally, the device further comprises:

[0524] The receiving module is used to receive measurement configuration information.

[0525] Optionally, the measurement configuration information includes at least one of the following:

[0526] Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

[0527] Optionally, the measurement rule information includes at least one of the following:

[0528] Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points;

[0529] The measurement window information includes at least one of the following:

[0530] Frequency domain measurement window, time domain measurement window, target dimension measurement window.

[0531] Optionally, the target dimension includes at least one of the following:

[0532] Delay dimension, Doppler dimension, azimuth dimension, elevation dimension, and combined dimension;

[0533] The combination dimension includes at least two of the following combination dimensions:

[0534] Delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0535] Optionally, the measurement includes at least one of the following:

[0536] Perception measurement, communication measurement, and integrated perception and communication measurement.

[0537] The above-mentioned measuring device can improve the measurement performance.

[0538] The measuring device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or a network-side device.

[0539] The measuring device provided in the embodiment of the present application can implement each process implemented in the method embodiment shown in Figure 9 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0540] Optionally, as shown in Figure 13, an embodiment of the present application further provides a communication device 1300, including a processor 1301 and a memory 1302, wherein the memory 1302 stores a program or instruction that can be run on the processor 1301. For example, when the communication device 1300 is a first device, the program or instruction is executed by the processor 1301 to implement the various steps of the above-mentioned signal transmission method embodiment and can achieve the same technical effect. When the communication device 1300 is a second device, the program or instruction is executed by the processor 1301 to implement the various steps of the above-mentioned measurement method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0541] An embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the processor is configured to generate a ZC sequence, wherein the length of the ZC sequence is a prime number; and the communication interface is configured to transmit a target signal, wherein the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement. This communication device embodiment corresponds to the aforementioned signal transmission method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this communication device embodiment and can achieve the same technical effects.

[0542] Specifically, Figure 14 is a schematic diagram of the hardware structure of a device for implementing an embodiment of the present application, which is a first device or a second device.

[0543] The device 1400 includes but is not limited to: a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409 and at least some of the components of the processor 1410.

[0544] Those skilled in the art will appreciate that device 1400 may also include a power source (such as a battery) to power various components. The power source may be logically connected to processor 1410 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The device structure shown in FIG14 does not limit the device. The device may include more or fewer components than shown, or may combine certain components or arrange the components differently, which will not be described in detail here.

[0545] It should be understood that in an embodiment of the present application, the input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042, and the graphics processor 14041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1406 may include a display panel 14061, and the display panel 14061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1407 includes a touch panel 14071 and at least one of other input devices 14072. The touch panel 14071 is also called a touch screen. The touch panel 14071 may include two parts: a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0546] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1401 may transmit the data to the processor 1410 for processing. Furthermore, the radio frequency unit 1401 may send uplink data to the network-side device. Typically, the radio frequency unit 1401 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0547] The memory 1409 can be used to store software programs or instructions and various data. The memory 1409 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1409 may include a volatile memory or a non-volatile memory, or the memory 1409 may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1409 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0548] Processor 1410 may include one or more processing units. Optionally, processor 1410 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1410.

[0549] In this embodiment, the above device is taken as the first device, and the first device is taken as the terminal for illustration.

[0550] Processor 1410 is configured to generate a ZC sequence, where the length of the ZC sequence is a prime number;

[0551] The radio frequency unit 1401 is configured to send a target signal, where the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

[0552] Optionally, generating a ZC sequence includes:

[0553] The ZC sequence is generated according to a ZC sequence parameter, where the ZC sequence parameter includes at least one of the following:

[0554] The length of the ZC sequence, the ZC sequence root sequence number, the ZC sequence cyclic shift factor, and the ZC sequence parameter configuration index.

[0555] Optionally, the ZC sequence root sequence number is associated with at least one of the following:

[0556] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0557] Optionally, the ZC sequence cyclic shift factor is associated with at least one of the following:

[0558] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0559] Optionally, the sensing service related information includes at least one of the following:

[0560] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

[0561] Optionally, the ZC sequence parameter configuration index is associated with at least one of the following:

[0562] The length of the ZC sequence, the resource unit interval of the frequency domain resources used to carry the target signal, the ZC root sequence number set, the maximum number of cyclic shifts allowed for any root sequence, and the number of frequency division multiplexing sequences.

[0563] Optionally, when the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal;

[0564] The frequency domain starting position k0 occupied by the ZC sequence is:

[0565] or

[0566] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N AC -1;

[0567] or,

[0568] The frequency domain starting position k0 occupied by the ZC sequence is:

[0569] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1;

[0570] Among them, N RB is the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

[0571] Optionally, in the case where the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource;

[0572] The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different;

[0573] The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

[0574] Optionally, the ZC sequence difference includes at least one of the following:

[0575] The root sequence number of the ZC sequence is different;

[0576] The ZC sequence has different cyclic shift factors.

[0577] Optionally, the processor 1410 or the radio frequency unit 1401 is further configured to:

[0578] Acquire signal configuration information of the target signal, where the signal configuration information includes at least one of the following:

[0579] The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

[0580] Optionally, the sequence generation information includes at least one of the following:

[0581] An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the target signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meet measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

[0582] Optionally, the signal configuration information is determined according to measurement requirements.

[0583] Optionally, the acquiring signal configuration information of the target signal includes:

[0584] Determining signal configuration information of the target signal based on measurement requirements;

[0585] Receive signal configuration information of the target signal.

[0586] Optionally, the target signal is used for measurement by the second device, or the target signal is used for measurement by the first device; and the radio frequency unit 1401 is further used for at least one of the following:

[0587] When the target signal is used for measurement by a second device, sending measurement configuration information to the second device;

[0588] In a case where the target signal is used for measurement by the first device, measurement configuration information is received.

[0589] Optionally, the measurement configuration information includes at least one of the following:

[0590] Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

[0591] Optionally, the measurement rule information includes at least one of the following:

[0592] Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points;

[0593] The measurement window information includes at least one of the following:

[0594] Frequency domain measurement window, time domain measurement window, target dimension measurement window.

[0595] Optionally, the target dimension includes at least one of the following:

[0596] Delay dimension, Doppler dimension, azimuth dimension, elevation dimension, and combined dimension;

[0597] The combination dimension includes at least two of the following combination dimensions:

[0598] Delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0599] Optionally, the measurement includes at least one of the following:

[0600] Perception measurement, communication measurement, and integrated perception and communication measurement.

[0601] The above devices can improve measurement performance.

[0602] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned signal sending method and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0603] It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 9, or can implement the method executed by each module shown in Figure 12.

[0604] The present application also provides an embodiment of a device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG9 . This device embodiment corresponds to the aforementioned measurement method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this device embodiment and can achieve the same technical effects.

[0605] An embodiment of the present application also provides a device, including a processor and a communication interface, wherein the communication interface is used to measure a target signal sent by a first device; wherein the sequence of the target signal includes a ZC sequence, and the length of the ZC sequence is a prime number.

[0606] Specifically, an embodiment of the present application further provides a device, which is a first device or a second device. As shown in Figure 15, the device 1500 includes: an antenna 1501, a radio frequency device 1502, a baseband device 1503, a processor 1504, and a memory 1505. The antenna 1501 is connected to the radio frequency device 1502. In the uplink direction, the radio frequency device 1502 receives information through the antenna 1501 and sends the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be sent and sends it to the radio frequency device 1502. The radio frequency device 1502 processes the received information and sends it out through the antenna 1501.

[0607] The measurement method in the above embodiment may be implemented in the baseband device 1503 , which includes a baseband processor.

[0608] The baseband device 1503 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 15, one of which is, for example, a baseband processor, which is connected to the memory 1505 through a bus interface to call the program in the memory 1505 and execute the device operations shown in the above method embodiment.

[0609] The device may further include a network interface 1506 , such as a Common Public Radio Interface (CPRI).

[0610] Specifically, the device 1500 of the embodiment of the present application also includes: instructions or programs stored in the memory 1505 and executable on the processor 1504. The processor 1504 calls the instructions or programs in the memory 1505 to execute the methods executed by the modules shown in FIG11 or FIG12 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0611] In this embodiment, the above device is taken as an example for description as the second device.

[0612] The radio frequency device 1502 is configured to measure a target signal sent by the first device;

[0613] The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

[0614] Optionally, the ZC sequence root sequence number is associated with at least one of the following:

[0615] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0616] Optionally, the ZC sequence cyclic shift factor is associated with at least one of the following:

[0617] Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

[0618] Optionally, the sensing service related information includes at least one of the following:

[0619] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

[0620] Optionally, when the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal;

[0621] The frequency domain starting position k0 occupied by the ZC sequence is:

[0622] or,

[0623] The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1;

[0624] or,

[0625] The frequency domain starting position k0 occupied by the ZC sequence is:

[0626] And the RE index to which the i-th element in the ZC sequence is mapped is expressed as i=0,1,2,…,N ZC -1;

[0627] Among them, N RB is the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

[0628] Optionally, in the case where the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource;

[0629] The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different;

[0630] The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

[0631] Optionally, the ZC sequence difference includes at least one of the following:

[0632] The root sequence number of the ZC sequence is different;

[0633] The ZC sequence has different cyclic shift factors.

[0634] Optionally, the radio frequency device 1502 is further configured to:

[0635] Sending signal configuration information of the target signal to the first device, where the signal configuration information includes at least one of the following:

[0636] The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

[0637] Optionally, the sequence generation information includes at least one of the following:

[0638] An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the target signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meet measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

[0639] Optionally, the signal configuration information is determined according to measurement requirements.

[0640] Optionally, the radio frequency device 1502 is further configured to:

[0641] Receive measurement configuration information.

[0642] Optionally, the measurement configuration information includes at least one of the following:

[0643] Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

[0644] Optionally, the measurement rule information includes at least one of the following:

[0645] Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points;

[0646] The measurement window information includes at least one of the following:

[0647] Frequency domain measurement window, time domain measurement window, target dimension measurement window.

[0648] Optionally, the target dimension includes at least one of the following:

[0649] Delay dimension, Doppler dimension, azimuth dimension, elevation dimension, and combined dimension;

[0650] The combination dimension includes at least two of the following combination dimensions:

[0651] Delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0652] Optionally, the measurement includes at least one of the following:

[0653] Perception measurement, communication measurement, and integrated perception and communication measurement.

[0654] The above devices can improve measurement performance.

[0655] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0656] It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 4, or can implement the method executed by each module shown in Figure 11.

[0657] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned signal sending method or measurement method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0658] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0659] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned signal sending method or measurement method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0660] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0661] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned signal sending method or measurement method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0662] An embodiment of the present application further provides a wireless communication system, including: a first device and a second device, wherein the first device can be used to execute the steps of the signal sending method provided in the embodiment of the present application, and the second device can be used to execute the steps of the measurement method provided in the embodiment of the present application.

[0663] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0664] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0665] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A signal transmission method, comprising: The first device generates a ZC sequence, where the length of the ZC sequence is a prime number; The first device sends a target signal, the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

2. The method according to claim 1, wherein The first device generates a ZC sequence, including: The first device generates the ZC sequence according to a ZC sequence parameter, where the ZC sequence parameter includes at least one of the following: The length of the ZC sequence, the ZC sequence root sequence number, the ZC sequence cyclic shift factor, and the ZC sequence parameter configuration index.

3. The method according to claim 2, wherein: The ZC sequence root sequence number is associated with at least one of the following: Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

4. The method according to claim 2 or 3, wherein: The ZC sequence cyclic shift factor is associated with at least one of the following: Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

5. The method according to claim 2 or 3, wherein: The sensing service related information includes at least one of the following: Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and measurement quantity information.

6. The method according to any one of claims 2 to 5, wherein The ZC sequence parameter configuration index is associated with at least one of the following: The length of the ZC sequence, the resource unit interval of the frequency domain resources used to carry the target signal, the ZC root sequence number set, the maximum cyclic shift number allowed for any root sequence, and the number of frequency division multiplexing sequences.

7. The method according to any one of claims 1 to 6, wherein In a case where the total number of frequency domain resource units used to carry the target signal is greater than the length of the ZC sequence, the ZC sequence occupies subcarriers in a central part of the frequency domain resource units used to carry the target signal; The frequency domain starting position k0 occupied by the ZC sequence is: or The RE index to which the i-th element in the ZC sequence is mapped is represented by k i =k0+i, i=0,1,2,…,N ZC -1; or, The frequency domain starting position k0 occupied by the ZC sequence is: And the RE index to which the i-th element in the ZC sequence is mapped is expressed as Among them, N RB is the total number of frequency domain resource units used to carry the target signal, N ZC is the length of the ZC sequence, is the number of subcarriers in a single RB, Indicates the adjacent subcarrier offset used to carry the target signal.

8. The method according to any one of claims 1 to 7, wherein In the case where the target signal is sent on multiple time domain resources, the multiple time domain resources include a first time domain resource and a second time domain resource, or the multiple time domain resources include a third time domain resource and a fourth time domain resource; The ZC sequences corresponding to the target signal in the first time domain resource and the second time domain resource are different; The ZC sequences corresponding to the target signal on the third time domain resource and the fourth time domain resource are the same.

9. The method of claim 8, wherein: The ZC sequence difference includes at least one of the following: The root sequence number of the ZC sequence is different; The ZC sequence has different cyclic shift factors.

10. The method according to any one of claims 1 to 9, further comprising: The first device obtains signal configuration information of the target signal, where the signal configuration information includes at least one of the following: The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

11. The method according to claim 10, wherein: The sequence generation information includes at least one of the following: An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the target signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meet measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

12. The method according to claim 10 or 11, wherein: The signal configuration information is determined according to measurement requirements.

13. The method of claim 12, wherein: The first device acquiring signal configuration information of the target signal includes: The first device determines signal configuration information of the target signal based on a measurement requirement; The first device receives signal configuration information of the target signal.

14. The method according to any one of claims 1 to 13, wherein The target signal is used for measurement by the second device, or the target signal is used for measurement by the first device; the method further includes at least one of the following: In a case where the target signal is used for measurement by the second device, the first device sends measurement configuration information to the second device; In a case where the target signal is used for measurement by a first device, the first device receives measurement configuration information.

15. The method of claim 14, wherein: The measurement configuration information includes at least one of the following: Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

16. The method of claim 15, wherein: The measurement rule information includes at least one of the following: Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points; The measurement window information includes at least one of the following: Frequency domain measurement window, time domain measurement window, target dimension measurement window.

17. A measurement method comprising: The second device measures the target signal sent by the first device; The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

18. The method of claim 17, wherein: The root sequence number of the ZC sequence is associated with at least one of the following: Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

19. The method according to claim 17 or 18, wherein The cyclic shift factor of the ZC sequence is associated with at least one of the following: Perception service related information, information of devices participating in perception, frequency domain resource related information of the target signal, time domain resource information of the target signal, spatial domain resource related information of the target signal, length of the ZC sequence, and sequence identifier.

20. The method according to any one of claims 17 to 19, further comprising: The second device sends signal configuration information of the target signal to the first device, where the signal configuration information includes at least one of the following: The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

21. The method of claim 20, wherein: The sequence generation information includes at least one of the following: An identifier indicating that the length of the ZC sequence is a prime number, the length of the ZC sequence, the total number of frequency domain resource units used to carry the target signal, the number of RBs used to carry the signal, the adjacent subcarrier offset used to carry the target signal, the frequency domain density of the target signal, the minimum total number of frequency domain resource units that meets measurement requirements, the maximum frequency domain resource unit interval that meets the maximum unambiguous range, the maximum number of subcarriers in the adjacent subcarrier interval used to carry the target signal, a ZC sequence root sequence number, associated information of the ZC sequence root sequence number, a ZC sequence cyclic shift factor, associated information of the ZC sequence cyclic shift factor, parameter configuration index information of the ZC sequence, and a sequence identifier.

22. The method according to claim 20 or 21, wherein The signal configuration information is determined according to measurement requirements.

23. The method of any one of claims 19 to 22, further comprising: The second device receives measurement configuration information.

24. The method of claim 23, wherein: The measurement configuration information includes at least one of the following: Measurement resource information, measurement rule information, measurement quantity information, and reporting configuration.

25. The method of claim 24, wherein: The measurement rule information includes at least one of the following: Measurement threshold information, measurement window information, time domain measurement interval, frequency domain measurement interval, number of time domain calculation sampling points, number of frequency domain calculation sampling points; The measurement window information includes at least one of the following: Frequency domain measurement window, time domain measurement window, target dimension measurement window.

26. A signal transmitting device, comprising: A generating module, configured to generate a ZC sequence, wherein the length of the ZC sequence is a prime number; The first sending module is configured to send a target signal, where the sequence of the target signal includes the ZC sequence, and the target signal is used for measurement.

27. The apparatus of claim 26, wherein: The generating module is configured to generate the ZC sequence according to a ZC sequence parameter, where the ZC sequence parameter includes at least one of the following: The length of the ZC sequence, the ZC sequence root sequence number, the ZC sequence cyclic shift factor, and the ZC sequence parameter configuration index.

28. The apparatus of claim 26 or 27, further comprising: An acquisition module is configured to acquire signal configuration information of the target signal, where the signal configuration information includes at least one of the following: The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

29. The device according to any one of claims 26 to 28, wherein The target signal is used for measurement by the second device, or the target signal is used for measurement by the first device; the apparatus further includes at least one of the following: A second sending module, configured to send measurement configuration information to the second device when the target signal is used for measurement by the second device; The receiving module is configured to receive measurement configuration information when the target signal is used for measurement of the first device.

30. A measuring device comprising: a measuring module, configured to measure a target signal sent by the first device; The target signal sequence includes a ZC sequence, and the length of the ZC sequence is a prime number.

31. The apparatus of claim 30, further comprising: a sending module, configured to send signal configuration information of the target signal to the first device, where the signal configuration information includes at least one of the following: The sequence generation information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, time domain resource length, time domain resource spacing, time domain resource characteristics, signal power, signal direction, quasi-co-location QCL relationship, and cyclic prefix CP information of the ZC sequence.

32. The apparatus of claim 30 or 31, further comprising: The receiving module is used to receive measurement configuration information.

33. A device comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method according to any one of claims 1 to 16 are implemented, or when the program or instruction is executed by the processor, the steps of the measurement method according to any one of claims 17 to 25 are implemented.

34. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the signal sending method according to any one of claims 1 to 16, or implements the steps of the measurement method according to any one of claims 17 to 25.

35. A computer program product, wherein the computer program product is stored in a storage medium and is executed by at least one processor to implement the steps of the signal sending method according to any one of claims 1 to 16, or the steps of the measurement method according to any one of claims 17 to 25.

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