Measurement method, signal sending method, apparatus and device

Abstract

The present application belongs to the technical field of communications. Disclosed are a measurement method, a signal sending method, an apparatus, and a device. The measurement method in the embodiments of the present application comprises: a first device measures a target signal to obtain a measurement result, the target signal comprising M Chirp signals, M being a positive integer, the starting frequency of Chirp signal i amongst the M Chirp signals in a first time domain resource being a first frequency, the starting frequency thereof in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being consecutive, the first frequency being different from the second frequency; Chirp signal i being a Chirp signal amongst the M Chirp signals having an index or serial number of i, and i being an integer greater than or equal to 0 and a positive integer less than M.

Description

Measurement method, signal transmission method, device and equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311809336.8 filed in China on December 26, 2023, 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 measurement method, a signal sending method, an apparatus and a device. Background Art

[0004] Some related technologies mainly use reference signals of an Orthogonal Frequency Division Multiplexing (OFDM) system for measurement. However, the peak-to-average ratio of the OFDM system reference signal is high when used for measurement, resulting in poor measurement performance of the device. Summary of the Invention

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

[0006] In a first aspect, a measurement method is provided, comprising:

[0007] The first device measures the target signal and obtains a measurement result;

[0008] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0009] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0010] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0011] In a second aspect, a signal transmission method is provided, including:

[0012] The second device sends a target signal, where the target signal is used for measurement;

[0013] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0014] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0015] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

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

[0017] A measurement module is used to measure the target signal and obtain the measurement result;

[0018] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0019] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0020] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0021] In a fourth aspect, a signal sending device is provided, including:

[0022] A first sending module is used to send a target signal, where the target signal is used for measurement;

[0023] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0024] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0025] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0026] In a fifth aspect, a device is provided, which includes 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 measurement method provided in the embodiment of the present application are implemented.

[0027] In the sixth aspect, a device is provided, comprising a processor and a communication interface, wherein the communication interface is used to measure a target signal and obtain a measurement result; wherein the target signal comprises M chirped Chirp signals, where M is a positive integer; the Chirp signal i among the M Chirp signals has a starting frequency of a first time domain resource and a starting frequency of a second time domain resource, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different; the Chirp signal i is a Chirp signal with an index or serial number of i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0028] In the seventh aspect, a device is provided, which includes 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 provided in the embodiment of the present application are implemented.

[0029] In the eighth aspect, a device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a target signal, and the target signal is used for measurement; wherein the target signal includes M chirped Chirp signals, where M is a positive integer; the Chirp signal i among the M Chirp signals has a starting frequency of a first time domain resource and a starting frequency of a second time domain resource, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different; the Chirp signal i is a Chirp signal with an index or serial number of i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0030] 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 measurement method provided in the embodiment of the present application are implemented, or the steps of the signal sending method provided in the embodiment of the present application are implemented.

[0031] 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 measurement method provided in the embodiment of the present application, and the second device can be used to execute the steps of the signal sending method provided in the embodiment of the present application.

[0032] 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 measurement method provided in the embodiment of the present application, or to implement the signal sending method provided in the embodiment of the present application.

[0033] 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 measurement 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 signal sending method provided in the embodiment of the present application.

[0034] In an embodiment of the present application, a target signal is measured to obtain a measurement result; wherein the target signal includes M Chirp signals, where M is a positive integer; a Chirp signal i among the M Chirp signals has a starting frequency of a first time domain resource and a starting frequency of a second time domain resource, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different; the Chirp signal i is a Chirp signal with an index or sequence number of i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M. In this way, measurement based on M Chirp signals can be achieved, and the Chirp signal has the characteristic of a low peak-to-average ratio. Therefore, measurement using the above-mentioned target signal can reduce the peak-to-average ratio during measurement to improve the measurement performance of the device. In addition, since the starting frequency of the Chirp signal i in the first time domain resource is the first frequency and the starting frequency in the second time domain resource is the second frequency, the first time domain resource and the second time domain resource are continuous, and the first frequency and the second frequency are different, the characteristics of the Chirp signal in the target signal corresponding to different terminals or antenna ports can be different, which is beneficial to the randomization of interference between multiple terminals or multiple ports, and further improves the measurement performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a block diagram of a wireless communication system applicable to embodiments of the present application;

[0036] FIG2 is a schematic diagram of a perception measurement scenario provided by an embodiment of the present application;

[0037] FIG3 is a flow chart of a measurement method provided in an embodiment of the present application;

[0038] FIG4 is a schematic diagram of a signal transmission provided in an embodiment of the present application;

[0039] FIG5 is a schematic diagram of another signal transmission provided in an embodiment of the present application;

[0040] FIG6 is a schematic diagram of another signal transmission provided in an embodiment of the present application;

[0041] FIG7 is a schematic diagram of a region division provided in an embodiment of the present application;

[0042] FIG8 is a schematic diagram of another area division provided in an embodiment of the present application;

[0043] FIG9 is a flowchart of a signal sending method provided in an embodiment of the present application;

[0044] FIG10 is a schematic diagram of a signal measurement provided in an embodiment of the present application;

[0045] FIG11 is a schematic diagram of another signal measurement provided in an embodiment of the present application;

[0046] FIG12 is a structural diagram of a measuring device provided in an embodiment of the present application;

[0047] FIG13 is a structural diagram of a signal sending device provided in an embodiment of the present application;

[0048] FIG14 is a structural diagram of a communication device provided in an embodiment of the present application;

[0049] FIG15 is a structural diagram of another communication device provided in an embodiment of the present application;

[0050] FIG16 is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] 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.

[0052] 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 the number of objects is not limited. 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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:

[0059] Table 1

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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:

[0072] 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.

[0073] 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.

[0074] 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.

[0075] Manage the overall coordination and scheduling of resources required for sensing services, such as configuring sensing resources for wireless access network devices or terminals;

[0076] Data processing or calculation is performed on the values ​​of the perception measurement quantity to obtain the perception result. In addition, the perception result can be verified and the perception accuracy can be estimated.

[0077] The following, in conjunction with the accompanying drawings, describes in detail a measurement method, a signal sending method, an apparatus and a device provided in an embodiment of the present application through some embodiments and their application scenarios.

[0078] Please refer to FIG3 , which is a flow chart of a measurement method provided in an embodiment of the present application. As shown in FIG3 , the method includes the following steps:

[0079] Step 301: The first device measures the target signal and obtains a measurement result;

[0080] Wherein, the target signal includes M Chirp signals, where M is a positive integer;

[0081] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0082] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0083] The target signal including M Chirp signals indicates that one target signal includes M Chirp signals, and M is a positive integer indicating an integer M≥1.

[0084] The first device mentioned above may be a terminal or a network side device.

[0085] The aforementioned measurement of the target signal may be measurement of one or more target signals. The target signal may be sent by a second device, which may be a terminal or a network-side device. The target signal may also be sent by a first device, such as when the first device performs the self-transmitting and self-receiving measurement.

[0086] The measurement result includes at least one of a perception-related measurement result and a communication-related measurement result. The perception-related measurement result may include a value of a perception measurement quantity.

[0087] The above-mentioned Chirp signal i can be understood as the i-th Chirp signal, except that the value of i can include 0, that is, the sequence number of the Chirp signal starts from 0. In some implementations, the above-mentioned i can also start from 1, which is not limited to this.

[0088] In addition, the Chirp signal i may represent each of the M Chirp signals, such as the value of i is 0 to M-1, or in some embodiments, the Chirp signal i may only represent part of the m Chirp signals.

[0089] The starting frequency of the first time domain resource is the first frequency, the starting frequency of the second time domain resource is the second frequency, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different as shown in FIG4 , the first time domain resource is represented by T in the figure offset , the second time domain resource represents T in the figure Chirp -T offset , the first frequency is represented by f in the figure i , the second frequency is represented by f in the figure H or f L .

[0090] In some implementations, the frequency modulation slope of the Chirp signal i on the first time domain resource and the second time domain resource is the same.

[0091] In an embodiment of the present application, the above steps can be used to implement measurement based on M Chirp signals, and the Chirp signal has the characteristic of low peak-to-average ratio. Therefore, using the above target signal for measurement can reduce the peak-to-average ratio during measurement to improve the measurement performance of the device.

[0092] In addition, since the starting frequency of the Chirp signal i in the first time domain resource is the first frequency and the starting frequency in the second time domain resource is the second frequency, the first time domain resource and the second time domain resource are continuous, and the first frequency and the second frequency are different, the characteristics of the Chirp signal in the target signal corresponding to different terminals or antenna ports can be different, which is beneficial to the randomization of interference between multiple terminals (or multiple users) or multiple ports, and further improves the measurement performance.

[0093] In some embodiments, the above-mentioned second frequency can be obtained by offsetting (or called displacement) or cyclically shifting (or called cyclic shift) the first frequency, and the second frequency of the Chirp signal in the target signal corresponding to different terminals or different antenna ports (such as different cyclic shift values), or the second frequencies of each Chirp signal in the target signal corresponding to different terminals or different antenna ports are different (such as different cyclic shift values). This can make the characteristics of the Chirp signal in the target signal corresponding to different terminals more easily different, so that the interference randomization effect between the target signals corresponding to different terminals is better.

[0094] In some embodiments, in addition to the different second frequencies, the modulation coefficients of the target signals corresponding to different terminals or different antenna ports may be different or the frequency modulation slope polarities may be different, thereby better changing the characteristics of the Chirp in the target signals corresponding to different terminals or different antenna ports, making the target signals more random and further reducing mutual interference.

[0095] In addition, during the measurement process, the target signal is received and processed using a time-domain mixing method, which reduces the complexity of the receiving process and is conducive to self-interference suppression.

[0096] As an optional implementation manner, the second frequency is the highest frequency or the lowest frequency of the Chirp signal i;

[0097] Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

[0098] The highest frequency or the lowest frequency can be as shown in FIG4 f Hor f L , the frequency between the highest frequency and the lowest frequency can be shown in Figure 4 as f i .

[0099] Wherein, when the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i; or,

[0100] When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

[0101] In the above optional implementation, since the second frequency is the highest frequency or the lowest frequency of the Chirp signal i, this can support the polarity of the frequency modulation slope of the Chirp signal i to be positive or negative, so as to improve the flexibility of the frequency modulation slope of the Chirp signal i and more easily meet the measurement requirements.

[0102] As an optional implementation, the target signal includes M Chirp signals generated and mapped in the time domain, and the bandwidth of each Chirp signal is B=f H -f L , where f H , f L are the highest frequency and the lowest frequency respectively, and the duration is T Chirp The target signal can include M Chirp signals transmitted periodically or semi-continuously in the time domain, or it can be a non-periodic signal composed of M Chirp signals. Taking Chirp signal i as an example, its generation expression is as follows:

[0103] in,

[0104] Among them, a i is the modulation coefficient of Chirp signal i, f X is the starting frequency of the Chirp signal i in the second time domain resource, that is, the second frequency mentioned above, f i is the starting frequency of the Chirp signal i in the first time domain resource, that is, the first frequency mentioned above, f offset =|f i -f x | is the frequency domain offset of the first frequency relative to the second frequency (or called the frequency domain cyclic shift parameter), k i represents the frequency modulation slope of Chirp signal i, T offset is the time domain offset of Chirp signal i (or called time domain cyclic shift parameter), and t is the time domain sampling point.

[0105] The time-frequency characteristic diagram of the Chirp signal i can be shown in FIG4 .

[0106] It should be noted that in the embodiments of the present application, the expression for generating the Chirp signal i is not limited to the above formula, but the above expression can enable the Chirp signal i to have the optimal correlation characteristics and peak-to-average ratio. For example, in some embodiments, the expression for generating the Chirp signal i as an example can also be as follows:

[0107] in,

[0108] Among them, A0 is a constant coefficient. At this time, the modulation coefficients corresponding to different Chirp signals in the target signal are the same.

[0109] For another example, in some implementations, the expression generated by taking Chirp signal i as an example may be as follows:

[0110] in, in, At this time, the frequency modulation slopes corresponding to different Chirp signals in the target signal are the same and the polarity is positive.

[0111] For another example, in some implementations, the expression generated by taking Chirp signal i as an example may be as follows:

[0112] in, At this time, the Chirp signal in the target signal is not cyclically shifted.

[0113] For another example, in some implementations, the expression generated by taking Chirp signal i as an example may be as follows:

[0114] in, Among them, A0 is a constant coefficient. At this time, the modulation coefficients corresponding to different Chirp signals in the target signal are the same, and the Chirp signals in the target signal are not cyclically shifted.

[0115] As an optional implementation manner, the Chirp signal i has at least one of the following characteristics:

[0116] The frequency modulation slope of the Chirp signal i satisfies Among them, k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, T Chirp is the duration of Chirp signal i;

[0117] The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, is a complex vector;

[0118] The Chirp signal i is time-division multiplexed with the OFDM signal;

[0119] The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following:

[0120] Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, index of Chirp signal i.

[0121] It should be noted that the Chirp signal i having at least one of the above characteristics means that in one of the above optional implementations, the Chirp signal i may only satisfy part of the at least one characteristic, and is not limited to satisfying all of the characteristics.

[0122] The above b i A non-zero integer can be understood as the above b i It can be a positive integer or a negative integer, for example: i It may be +1 or -1. It should be noted that the b in different Chirp signals i The value of can be different, or the b in some Chirp signals i The same or partially different is not limited to this.

[0123] Since the frequency modulation slope of the Chirp signal i satisfies In this way, the frequency modulation slopes of different Chirp signals i can be set to different frequency modulation slopes, so as to improve the randomization of interference between multiple users and enhance the measurement performance.

[0124] Since the modulation coefficient of Chirp signal i satisfies This makes the modulation coefficient a i It is constant modulus, further reducing the peak-to-average ratio of the target signal.

[0125] The time division multiplexing of the Chirp signal i and the OFDM signal can achieve the transmission of the target signal and other OFDM signals in a time division multiplexing manner, thereby achieving better compatibility between the target signal and the OFDM system.

[0126] In some implementations, the duration of the Chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix (CP); or,

[0127] The duration of the Chirp signal i is equal to the duration of P OFDM symbols excluding CP;

[0128] Wherein, P is a positive integer.

[0129] Among them, when the above P is 1, the duration of the Chirp signal i can be the same as the OFDM symbol duration (including CP), that is, T Chirp =T OFDM +T CP ; And, the duration of the Chirp signal i can be made the same as the OFDM symbol duration (excluding CP), that is, T Chirp =T OFDM .

[0130] Or, for OFDM symbol duration (including CP), it can be T Chirp =P(T OFDM +T CP ), the OFDM symbol duration (excluding CP) is the same, that is, T Chirp =PT OFDM .

[0131] The duration of the Chirp signal i is equal to the duration of P OFDM symbols containing the CP. This allows the Chirp signal i to last longer to transmit more information.

[0132] The duration of chirp signal i is equal to the duration of P OFDM symbols without a CP. This allows for adding a CP to chirp signal i after time domain resource mapping. The CP length is the same as the CP length of P OFDM symbols. Adding a CP reduces inter-OFDM symbol interference, thereby improving the transmission reliability of the target signal. For example, as shown in Figure 5, the duration of each chirp signal is equal to the duration of an OFDM symbol without a CP, where T represents the duration of the target signal and ΔT represents the time interval between two adjacent chirp signals.

[0133] In some implementations, the duration of the target signal may be equal to an OFDM symbol without a CP. As shown in FIG6 , the total duration of M Chirp signals is equal to an OFDM symbol without a CP.

[0134] The target information may be information determined by the first device, or information received by the first device from other devices.

[0135] The first parameter may include at least one of the following:

[0136] Frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset, and time domain offset.

[0137] The frequency domain offset is the frequency domain offset value of the first frequency relative to the second frequency, and the time domain offset is the length of the first time domain resource, which can also represent the T in the Chirp signal i generation expression. offset .

[0138] The association between the first parameter of the Chirp signal i and the target information can be understood as the first parameter of the Chirp signal i is determined based on the target information, so that the first parameter of the Chirp signal i can better match the target information.

[0139] The above-mentioned perception information may include at least one of the following:

[0140] Perception area identifier, identifier indicating whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, and information about devices involved in perception measurement.

[0141] The above-mentioned device information may be a device identifier, such as a cell identifier or a terminal identifier of a device participating in the sensing measurement, such as a Radio Network Temporary Identifier (RNTI).

[0142] In one of the above optional embodiments, since the above-mentioned first parameter is associated with the above-mentioned perception information, at least one of the frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset or time domain offset can be matched with the perception information, thereby making the Chirp signal i more matched with the perception to improve the perception performance.

[0143] The above-mentioned time domain resource information may include the following:

[0144] Radio frame index, subframe index, time slot index, symbol index, duration, time domain density, cyclic prefix CP type, CP length, coherent processing time window index, number of coherent processing time windows.

[0145] The radio frame index and subframe index may be a radio frame index and subframe index defined by the communication system, or the radio frame index and subframe index may be a relative radio frame index and subframe index within a perception coherent processing time window / perception resource block;

[0146] The time slot index may be a time slot index within a radio frame, or a time slot index within a coherent processing time window / sensing resource block;

[0147] The symbol index may be a symbol index within a time slot, or a symbol index within a coherent processing time window / perceptual resource block.

[0148] The above-mentioned coherent processing time window is the time window for calculating the perception measurement result each time (for example, the time domain resource length corresponding to the range-Doppler map obtained by performing a two-dimensional FFT operation), which may include multiple time slots / symbols.

[0149] The frequency domain resource information may include at least one of the following:

[0150] Resource element (RE) index, resource block (RB) index, frequency information, frequency band information, bandwidth, frequency domain density, subcarrier spacing, and perception resource block index; wherein the perception resource block contains multiple physical resource blocks (PRBs) and multiple time slots / symbols, that is, it contains specific time-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.

[0151] The index of the Chirp signal i is the index i of the target signal.

[0152] The antenna index may be an antenna group index, a subarray index or an antenna panel index, and the number of antennas may be the number of antenna groups, the number of subarrays or the number of antenna panels.

[0153] In the above optional implementation manner, since the above first parameter is associated with the above target information, the first parameter of the Chirp signal i can be more closely matched with the above target information, such as improving the transmission performance of the target signal.

[0154] Optionally, the frequency modulation slope satisfies Among them, k i is the frequency modulation slope of the Chirp signal i, b i is the i-th element in a first sequence, the first sequence being associated with the target information;

[0155] or,

[0156] The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

[0157] The above-mentioned i-th element is the element with index or sequence i in the first sequence.

[0158] The first sequence may be a pseudo-random (PN) sequence or a ZC sequence.

[0159] The association between the first sequence and the target information may be a relationship between at least one of the following items in the first sequence and the target information:

[0160] Initial value, primitive polynomial, cyclic shift value, or truncation position.

[0161] The second sequence may be a PN sequence or a ZC sequence, wherein the second sequence and the first sequence may be different or of the same type, which is not limited.

[0162] The association between the second sequence and the target information may be a relationship between at least one of the following items in the first sequence and the target information:

[0163] Initial value, primitive polynomial, cyclic shift value, or truncation position.

[0164] In the above embodiment, due to b i is the i-th element in the first sequence, so that the frequency modulation slopes of different Chirp signals are generated based on different elements of the same sequence, which can improve the correlation characteristics between different Chirp signals and further improve the transmission reliability of the target signal.

[0165] In the above implementation, since the modulation coefficient of Chirp signal i is the i-th element in the second sequence, the modulation coefficients of different Chirp signals can be generated based on different elements of the same sequence, which can improve the correlation characteristics between different Chirp signals and thereby improve the transmission reliability of the target signal.

[0166] The following is an example of how to calculate the frequency modulation slope k of the Chirp signal i. i , modulation coefficient a i , the first frequency f i , frequency domain offset f offset and time domain offset T offset The following examples illustrate the value of:

[0167] For the Chirp frequency modulation slope k i , which can be where b i is an element in the first sequence, and the first sequence is obtained according to the PN sequence, that is, it is equivalent to modulating the polarity (positive or negative) of the frequency modulation slope of the Chirp signal in the target signal according to the first sequence, which is also equivalent to modulating the above-mentioned second frequency.

[0168] The initial value of the PN sequence, the primitive polynomial of the PN sequence, the cyclic shift value of the PN sequence, or the truncation position of the PN sequence are associated with the target information. The PN sequence may be generated as follows:

[0169] Generate the PN sequence 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

[0170] where n = 0, 1, ..., M PN -1, M PN is the sequence length. N C = 1600, the first m-sequence x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, ..., 30; the second m-sequence x2(n) is initialized as

[0171] The above PN sequence is mapped to ±1 to obtain the above first sequence: b(i) = 1 - 2·c(i), 0 ≤ i < M, where M is the length of the first sequence.

[0172] Further explanation of the perception-related information in the target information is as follows:

[0173] The perception area represented by the perception area identifier is the target area to be perceived. The perception area can be pre-divided, and the division methods can include the following:

[0174] Multiple base station coverage areas (cells) form a perception area, associated with a perception area identifier n areaID , as shown in Figure 7, each hexagonal area represents a base station coverage area, and the areas with the same number represent the same perception area. Specifically, the access network notification area (RAN-based notification area, RNA) can be used as a perception area, and the RNA ID can be used as the perception area identifier.

[0175] Alternatively, a single base station coverage area (cell) contains multiple perception areas, associated with multiple perception area identifiers. For example, with the base station as the origin, its coverage range is rasterized into multiple perception areas, and each area is associated with an area ID denoted as n areaID , as shown in Figure 8, the dashed line represents the base station coverage area, and each square represents the divided perception area.

[0176] Alternatively, it can also be to directly use a geographical area identifier such as longitude and latitude or coordinate position that has nothing to do with the position of the base station to generate the area ID n areaID .

[0177] Alternatively, different angle ranges relative to the base station can be associated with different area IDs n areaID , for example, azimuth angle x1° to x2°, elevation angle y1° to y2° correspond to the perception area ID1.

[0178] Based on whether it is used for perception, or a specific perception service identifier, or a perception service type identifier, the following methods may be included:

[0179] Based on whether it is used for perception, when it is not used for perception, n sensingID =0; when used for perception n sensingID =1.

[0180] Based on the specific perception service identifier, for example, different perception services correspond to different perception service ID n sensingID , where the sensing business can be the following:

[0181] Detection of target presence, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, classification, 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 monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.

[0182] It can also be the identification of the perception service type. Different categories correspond to different perception service IDs n sensingID , for example, the perception functions or business types are divided according to the scope and scale, for example:

[0183] 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.

[0184] Category 2 (medium distance / medium range): intrusion detection, population counting, indoor positioning, etc.

[0185] Category 3 (long distance / large range): humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, etc.

[0186] Other classification standards can also be used, for example: according to function, it can be divided into positioning perception, imaging perception, pattern recognition perception, etc.; or it can be divided into detection perception services (for example, including intrusion detection, fall detection), parameter estimation perception services (distance, angle, speed calculation), recognition perception services (motion recognition, identity recognition), etc.; or it can be divided into target detection and tracking perception services (including target presence, target ranging / distance measurement / angle measurement / positioning / trajectory tracking), environmental monitoring perception services (including rainfall detection, flood monitoring, etc.), motion detection perception services (including gesture / motion recognition, breathing / heartbeat detection, fall detection), etc.; it can also be divided according to power consumption / energy consumption, according to resource occupancy, etc.

[0187] Alternatively, the perception signal may be generated according to the measurement quantity identifier, that is, at least one of the perception measurement quantities is associated with a measurement quantity identifier, as shown in Table 2:

[0188] Table 2

[0189] The above-mentioned perceptual measurements can be divided into the following categories:

[0190] The first-level measurement quantity (also known as the received signal / original channel information) includes at least one of the following:

[0191] 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);

[0192] The second-level measurement quantity (also called basic measurement quantity) includes at least one of the following: time delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

[0193] The third level of measurement (also known as basic attributes / states) includes at least one of the following: distance, speed, direction, spatial position, acceleration;

[0194] 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.

[0195] The determination based on the perception target identifier (or the tag identifier associated with the perception target) may include the following methods:

[0196] The signal sending device obtains the identification of the sensing target. Different sensing targets correspond to different sensing target IDn. targetID , where 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 or target-related information.

[0197] After the signal sending device determines the ID of each target, it generates signals for sensing different targets according to different target IDs. These sensing signals are sent using different beams, with the beam direction pointing to the sensing target associated with the target ID.

[0198] The sensing target is tagged, and different tags are associated with different tag IDs. The transmitting device obtains the corresponding tag ID and generates signals used to sense the target. The tag can be a device that supports backscatter communication, and its excitation source can be a device other than the tag, or the tag itself. It can also be a terminal, that is, a sensing target equipped with a standard transceiver module, such as a communication device such as an in-vehicle terminal installed in a car.

[0199] It can also be the identification of the perception target type. Different types correspond to different perception target IDs. 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 .

[0200] Specifically, the perception area is identified by n areaID For example, the initial value of the PN sequence can be:

[0201] c init =n areaID , where n areaIDIt is the perception area identifier.

[0202] or or or in is the number of symbols in each time slot, is the time slot index in the radio frame, l is the symbol index in the time slot, n areaID is the perception area identifier, x is a non-negative positive integer.

[0203] The coefficient parameter of the first term in the initialization formula can be determined based on the variable value ranges and coefficient parameter values ​​of the following terms. For example, if there are 1000 sensing area IDs, which need to be represented by 10-bit binary numbers, then x = 10 can be set to ensure that no repeated generated sequences appear. Where A is a non-negative positive integer, A = 31. The initial value of the PN sequence can be:

[0204] or in is the physical cell identifier, or or Where x and y are non-negative positive integers, or c init =(2 x n RNTI +n areaID )mod2 A or c init =2 x n RNTI +n areaID , where n RNTI is the terminal identifier, where x and A are non-negative positive integers, and A can be set to 31.

[0205] or or It can also be or Where x, y, and A are non-negative positive integers, and A can be set to 31.

[0206] or or Where q is the codeword index, which can also be or Where x, y, z, and A are non-negative positive integers, and A can be set to 31.

[0207] Alternatively, taking the sensing area identifier and the sensing target identifier as an example, the initial value of the PN sequence may be: or

[0208] Alternatively, the perceptual coherence processing time window index n period and antenna port index n port For example, the initial value of the PN sequence can be: c init =(2 x (n period +1)+n port )mod2 A or c init =2 x (n period +1)+n port

[0209] or

[0210] or

[0211] or

[0212] or

[0213] in represents the number of time slots corresponding to each coherent processing time window, The time slot index within the coherent processing time window.

[0214] For the Chirp modulation coefficient a i , which can be an element in the second sequence, the second sequence is obtained according to the PN sequence. That is, each Chirp signal in the time domain is phase modulated as a whole according to the second sequence.

[0215] The generation method of the second sequence can refer to the frequency modulation slope k of the Chirp signal. i After obtaining the binary PN sequence, π / 2-BPSK modulation or QPSK modulation may be performed on it to obtain a second sequence.

[0216] The second sequence may also be obtained based on a ZC sequence, wherein the root sequence number value or cyclic shift value of the ZC sequence is associated with the first information. The generation method may be:

[0217] Determined by the root sequence number q Then we get the base sequence N ZC is less than the sequence length M ZC The maximum prime number of , further, the second sequence is obtained by cyclic shift:

[0218] Among them, the cyclic shift value α and the root sequence number q are associated with the target information. The association method can be that the perception area identifier is an 8-bit ID, and all or part of the 8 bits can be used to calculate the root sequence number q or cyclic shift value α of the sequence. For example, the cyclic shift value α can be determined by the first 4 bits of the ID, and the root sequence number q is determined by the last 4 bits of the ID; for another example, the cyclic shift value α is determined according to the perception service identifier, and the root sequence number q is determined according to the perception area identifier. There may be a preset mapping relationship between different perception area identifiers and the root sequence number q, as shown in Table 3 below. The preset mapping relationship is agreed upon or obtained through a signaling message.

[0219] Table 3

[0220] It can also be calculated according to a formula. Specifically, the root sequence number q can be calculated, for example:

[0221] Among them, u∈{0,1,...,29} is the group number, v is the base sequence number in the group, and taking the perception area identifier as an example, the value can be u=(n areaID )mod30,v=0.

[0222] The cyclic shift value may be calculated, for example, as: is the maximum value in the region identifier.

[0223] For the second frequency f of the Chirp signal i , frequency domain offset f offset , time domain offset T offset , which can be obtained based on the target information. These three parameters can be interrelated, such as: f offset =|f i -f X |,|k|·T offset =Bf offset or |k|·(T Chirp -T offset )=f offset , |k| is the absolute value of the Chirp frequency modulation slope.

[0224] With time domain offset T offset For example, the unit of the offset or cyclic shift can be the time domain sampling interval T sample , or the OFDM symbol duration (when the Chirp signal duration is multiple OFDM symbols), etc. Assume T offset It is associated with the port index, symbol index, and time slot index in the first information, and the unit of the offset or cyclic shift amount is the time domain sampling interval.

[0225] For example: it can be in, Indicates the number of time domain sampling points corresponding to the Chirp duration range, that is Alternatively, the unit of the offset is the OFDM symbol duration, which can be in, Indicates the number of OFDM symbols corresponding to the Chirp duration range, that is Alternatively, the offset is associated only with the port index and the maximum number of ports, which can be Among them, N port Indicates the maximum number of ports. Indicates that x is rounded down.

[0226] The frequency domain offset f offset For example, the unit of the offset or cyclic shift can be the frequency domain sampling interval (subcarrier spacing), the offset relative to the first starting frequency, or the offset relative to other reference frequencies. offset Associated with the cell ID in the first information, the index i of the Chirp signal in the first signal (the index corresponding to the i+1th Chirp signal), and the port index, it can be in, Indicates the number of frequency domain sampling points (number of subcarriers) corresponding to the Chirp bandwidth range.

[0227] It should be noted that the above is only an example of the first parameter of the Chirp signal i, and is not limited to the specific embodiment of the present application.

[0228] As an optional implementation manner, the measurement result includes at least one of the following:

[0229] Perception-related measurement results, communication-related measurement results.

[0230] The above-mentioned perception-related measurement result may be a value of a perception measurement quantity, such as at least one of the above-mentioned first-level measurement quantity, second-level measurement quantity, third-level measurement quantity or first-level measurement quantity.

[0231] Since the target signal includes the M Chirp signals, the low peak-to-average ratio characteristic of the Chirp signal can be utilized to improve the perception performance.

[0232] The communication-related measurement results include at least one of the following:

[0233] Precoding Matrix Indicator (PMI), Rank Indicator (RI), Channel Quality Indicator (CQI), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Received Signal Strength Indication (RSSI), Signal to Noise Ratio (SNR), Signal to Interference plus Noise Ratio (SINR), Bit Error Rate (BER), Block Error Rate (BLER), Beam Indicator.

[0234] Since the target signal includes the M Chirp signals, the low peak-to-average ratio characteristic of the Chirp signal can be utilized to improve communication performance, such as obtaining better communication-related measurement results.

[0235] As an optional implementation manner, the second parameter of the target signal is associated with the perception requirement information, and the second parameter includes at least one of the following:

[0236] Sending cycle, time interval, bandwidth, and duration.

[0237] The above-mentioned perception demand information may be sent by the network side device to the first device or the second device.

[0238] The above-mentioned association between the second parameter of the target signal and the perception requirement information can be understood as the second parameter of the target signal is determined based on the perception requirement information, so that the second parameter of the target signal can match the perception requirement information, and then the target signal can meet the perception requirement to improve the perception performance.

[0239] The above-mentioned perceived demand information may include at least one of the following:

[0240] Perception services or perception service types, perception services may include at least one of the following: detection of target presence, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, RCS detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, breathing 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 may be to classify multiple different perception services according to certain characteristics, for example, to classify them into detection-type perception services according to their functions. Perception services (such as intrusion detection and fall detection), parameter estimation perception services (distance, angle, speed calculation), recognition perception services (motion recognition and identity recognition), etc.; or they can be divided into, for example, target detection and tracking perception services (including target presence, target distance measurement / distance measurement / angle measurement / positioning / trajectory tracking), environmental monitoring perception services (including rainfall detection and flood monitoring), motion detection perception services (including gesture / motion recognition, breathing / heartbeat detection, fall detection), etc.; they can also be divided according to the range of perception (close-range perception, medium-range perception, and long-range perception), according to the degree of perception refinement (coarse-grained perception, fine force perception, etc.), according to the perception scene (indoor, outdoor, home, factory, highway, etc.), according to power consumption / energy consumption, according to resource occupancy, etc.

[0241] The perception target area may refer to the location area where the perception object may exist, or the location area where imaging or environment reconstruction is required;

[0242] The type of the perceived object can be used to classify the perceived object according to its possible motion characteristics. Each perceived object type contains information such as the motion speed, motion acceleration, and typical RCS of a typical perceived object.

[0243] Perception QoS can be a performance indicator for perceiving a target area or a perceiving object, including at least one of the following:

[0244] Perception resolution, which can be divided into: ranging resolution, angle resolution, velocity resolution, imaging resolution, etc.;

[0245] Perception accuracy can be divided into: ranging accuracy, angle measurement accuracy, speed measurement accuracy, positioning accuracy, etc.

[0246] Perception range, which can be divided into: ranging range, speed measurement range, angle measurement range, imaging range, etc.;

[0247] Perception latency, such as the time interval from the sending of a perception signal to the acquisition of a perception result, or the time interval from the initiation of a perception request to the acquisition of a perception result;

[0248] Perception update rate, such as the time interval between two consecutive perception executions and the acquisition of perception results;

[0249] Detection probability, such as the probability of correctly detecting the perceived object when it is present;

[0250] False alarm probability, i.e. the probability of incorrectly detecting a perceived target when the perceived target does not exist;

[0251] The maximum number of targets that can be perceived.

[0252] As an optional implementation manner, the association relationship between the second parameter of the target signal and the perception resolution or perception range in the perception requirement is, for example:

[0253] The time interval between two adjacent Chirp signals included in the target signal meets the maximum unambiguous velocity measurement range requirement or the maximum unambiguous Doppler measurement range requirement;

[0254] or,

[0255] In the case where the measurement includes a perception measurement, the duration of the target signal meets a Doppler resolution requirement or a velocity resolution requirement;

[0256] or,

[0257] In a case where the measurement includes perception measurement, the bandwidth of the target signal meets a delay resolution requirement or a distance resolution requirement.

[0258] The time interval between two adjacent Chirp signals included in the above-mentioned target signal satisfies the maximum unambiguous velocity measurement range requirement or the maximum unambiguous Doppler measurement range requirement. When used for perception measurement, multiple Chirp signals are required for joint measurement, and the target signal transmission period in the time domain or the time interval ΔT between two adjacent Chirp signals in the time domain satisfies the maximum unambiguous velocity measurement range requirement or the maximum unambiguous Doppler measurement range requirement. For example:

[0259] If the speed direction is considered, the time domain resource interval satisfies ΔT≤1 / (2|f dmax |) or ΔT≤c / (4f c |v max |); If the time domain resource interval in the direction of speed is not considered and satisfies ΔT≤1 / f dmax Or ΔT≤c / (2f c v max ), where f dmax is the maximum unambiguous Doppler, vmax is the maximum unambiguous velocity, f c is the carrier frequency and c is the speed of light.

[0260] In the above optional implementation manner, since the time interval between the two Chirp signals meets the maximum unambiguous velocity measurement range requirement or the maximum unambiguous Doppler measurement range requirement, the perception performance can be improved.

[0261] The duration of the target signal meets the Doppler resolution requirement or velocity resolution requirement. For single-base radar perception, it can be:

[0262] T≥1 / Δf d Or T≥c / (2f c Δv), where Δf d is the Doppler resolution, Δv is the velocity resolution;

[0263] In the above optional implementation manner, since the duration of the target signal meets the Doppler resolution requirement or the velocity resolution requirement, the perception performance can be improved.

[0264] The bandwidth of the target signal meets the requirements of time delay resolution or range resolution. For single-base radar perception, it can be:

[0265] B ≥ 1 / Δτ or B ≥ c / (2ΔR), where Δτ is the delay resolution and ΔR is the distance resolution.

[0266] In the above optional implementation manner, since the bandwidth of the target signal meets the delay resolution requirement or the distance resolution requirement, the perception performance can be improved.

[0267] In some implementations, at least one of the above-mentioned sending period, time interval, bandwidth, and duration may also be a protocol agreement or a network-side configuration.

[0268] As an optional implementation, the method further includes:

[0269] The first device receives indication information, where the indication information is used to indicate at least one of the following:

[0270] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0271] The above-mentioned first device receiving the indication information may be that the first device receives the indication information sent by the second device.

[0272] The configuration information of the target signal may be information for configuring at least one Chirp signal in the target signal, or may be information for configuring resources of the target signal or information associated with the target signal.

[0273] In some embodiments, the configuration information of the target signal includes at least one of the following:

[0274] At least one item of target information, wherein a first parameter of a Chirp signal in the target signal is associated with the target information;

[0275] Sequence information of a first sequence used to determine the frequency modulation slope of the Chirp signal in the target signal;

[0276] Sequence information of a second sequence used to determine a modulation coefficient of a Chirp signal in the target signal;

[0277] Frequency modulation slope information of the Chirp signal in the target signal;

[0278] Frequency domain resource information of the Chirp signal in the target signal;

[0279] Time domain resource information of the Chirp signal in the target signal;

[0280] The number of chirp signals in the target signal.

[0281] Among them, the above-mentioned target information refers to the corresponding description of the above-mentioned implementation method and is not repeated here.

[0282] Since at least one item of the above target information is configured, the first device can better measure the target signal based on the above target information, thereby improving measurement performance.

[0283] The above sequence information may include sequence length, sequence generation method, etc.

[0284] Since the sequence information of the first sequence or the second sequence is configured, the first device can determine the frequency modulation slope or modulation coefficient of the Chirp signal based on the sequence information, thereby being able to better measure the target signal to improve measurement performance.

[0285] In some implementations, the first device may also determine the first sequence or the second sequence according to target information and preset calculation rules.

[0286] The frequency modulation slope information of the Chirp signal in the above-mentioned target signal may include the frequency modulation slope information of at least one Chirp signal, or a frequency modulation slope list of all Chirp signals, wherein the above-mentioned frequency modulation slope information includes the absolute value of the frequency modulation slope or the polarity of the frequency modulation slope (positive or negative).

[0287] Since the frequency modulation slope information of the Chirp signal in the target signal is configured, the first device can determine the frequency modulation slope of the Chirp signal based on this information, thereby being able to better measure the target signal to improve measurement performance.

[0288] The frequency domain resource information of the Chirp signal in the target signal may include resource information occupied by the Chirp signal of the target signal, and may also include frequency-related parameters of the Chirp signal.

[0289] In some implementations, the frequency domain resource information includes at least one of the following:

[0290] The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, and the frequency domain resource length of the Chirp signal in the target signal, where the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

[0291] The first device can measure the target signal more accurately and reliably based on the frequency domain resource information, thereby improving measurement performance.

[0292] The time domain resource information of the Chirp signal in the target signal may include time domain information occupied by the Chirp signal of the target signal, and may also include time domain related parameters of the Chirp signal.

[0293] In some implementations, the time domain resource information includes at least one of the following:

[0294] The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, and the time domain offset.

[0295] The first device can measure the target signal more accurately and reliably based on the time domain resource information, thereby improving measurement performance.

[0296] In addition to the above at least one item, the configuration information of the target signal may also include at least one of the following items:

[0297] Signal resource identification (ID), used to distinguish different signal resource configurations;

[0298] Signal usage indicates whether the signal is used for communication (e.g., channel measurement, channel estimation, synchronization, or carrying data information), for sensing, or for both communication and sensing. Specifically, it may also indicate which sensing service the signal is used for, or which type of sensing service the signal is used for.

[0299] Waveforms, such as Orthogonal Frequency Division Multiplex (OFDM), Single-Carrier Frequency-Division Multiple Access (SC-FDMA), Orthogonal Time Frequency Space (OTFS), Chirp, Frequency Modulated Continuous Wave (FMCW), and pulse signals;

[0300] Subcarrier spacing, for example, the subcarrier spacing of the OFDM system is 30KHz.

[0301] The guard interval is 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 perception 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), for example, 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; c is the speed of light.

[0302] The starting frequency domain position, that is, the starting frequency point, can also be the starting RE, RB index;

[0303] The starting time domain position, i.e. the starting time point, can also be the starting symbol index, time slot index, or frame index;

[0304] The ending frequency domain position, i.e., the ending frequency point, can be represented by the ending RE and RB index;

[0305] The termination time domain position, i.e., the termination time point, can be represented by the termination RE and RB index;

[0306] Frequency domain resource length, i.e., frequency domain bandwidth, where the frequency domain bandwidth is inversely proportional to the range resolution, and the frequency domain bandwidth B of each first signal is ≥ c / (2ΔR), where c is the speed of light and ΔR is the range resolution;

[0307] The time domain resource length, also called the burst duration, is inversely proportional to the Doppler resolution.

[0308] Frequency domain resource spacing, which represents the spacing between adjacent signal frequency domain resource units, can be expressed as the number of REs or RBs, or as a density value. For example, Density = 1 means that there is one RE in each RB used to carry the signal. The frequency domain resource spacing is inversely proportional to the maximum unambiguous distance / delay. For OFDM systems, when subcarriers are continuously mapped, the frequency domain spacing is equal to the subcarrier spacing.

[0309] The time domain resource interval is the time interval between two adjacent signal resource units. The time domain resource interval is associated with the maximum unambiguous Doppler frequency shift or the maximum unambiguous speed; it can also be the signal time domain transmission period.

[0310] Time domain resource characteristics: periodic transmission, semi-continuous transmission, and aperiodic transmission.

[0311] The signal power, for example, takes a value from -20dBm to 23dBm at intervals of 2dBm.

[0312] Sequence information, including sequence type information (ZC sequence, PN sequence, etc.), sequence generation method, sequence length, etc.

[0313] Signal direction, angle information or beam information of the signal transmission.

[0314] Quasi Co-Location (QCL) relationship, for example, the sensing signal includes multiple resources, each resource is associated with a synchronization signal block (SSB) QCL, and the QCL includes Type A, B, C or D.

[0315] The CP information may include a CP type or a CP length, where the CP type may include a normal cyclic prefix (NCP), an extended cyclic prefix (ECP), or a newly designed CP dedicated to perception measurement.

[0316] The measurement configuration information includes at least one of the following:

[0317] An indication of the signal resource being measured, such as a signal resource identifier (ID).

[0318] The number of signal resources measured;

[0319] Perceptual measurement quantity;

[0320] The reporting configuration, i.e., the criteria for reporting the measurement result of the second device, includes at least one of the reported time-frequency domain resource configuration, the reporting period, and the reported triggering event. The triggering event includes at least one of the following:

[0321] Events of entering a specific area (e.g., a neighborhood);

[0322] Events arriving at a specific time;

[0323] An event where a certain type of measurement signal reaches a certain threshold;

[0324] Events where the device moves more than some predefined (linear) distance from its previous position;

[0325] Events where the device orientation changes by more than some predefined angle. The device orientation can refer to the orientation of components on the device, such as antennas and sensors.

[0326] Events where the device's movement speed exceeds some predefined speed threshold;

[0327] An event in which changes in environmental information (such as temperature, humidity, or light intensity) measured by device sensors exceed a certain range.

[0328] The measurement configuration information may enable the second device to better measure the target signal, thereby improving measurement performance.

[0329] The measurement assistance information may include at least one of the following:

[0330] Beam indication of the transmit beam, including at least one of the total number of transmit beams, the number of sensing beams, and the number of communication beams

[0331] Receive beam indication, including a recommended receive beam direction or corresponding index;

[0332] location information of the first device, or direction information of the first device relative to the second device;

[0333] Perceive demand information.

[0334] The measurement auxiliary information may enable the second device to better measure the target signal, thereby improving measurement performance.

[0335] It should be noted that at least one of the above-mentioned indication information configurations may also be a protocol agreement or a network-side configuration.

[0336] It should be noted that at least one of the above-mentioned indication information configurations may also be a protocol agreement or a network-side configuration.

[0337] In the embodiments of the present application, the following situations may be included:

[0338] Case 1, bistatic sensing, where the second device sends a target signal, and the first device receives the target signal and uses it for sensing measurement or communication (when the target signal is also used for communication channel measurement or demodulation);

[0339] Case 2, single-base sensing, the first device sends a target signal and simultaneously receives its echo signal and uses it for sensing, and also includes, the second device receives the target signal and uses it for communication (when the target signal is also used for communication channel measurement or demodulation).

[0340] The first device and the second device may be wireless access network devices or terminals. The first device may obtain perception requirement information from a third device. The first and second devices may send perception measurement results to the third device after obtaining them. The third device may be a core network perception network function or perception network element.

[0341] Among them, the signaling transmission between the wireless access network equipment and the terminal, and between different terminals is 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 can 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 can be forwarded to the wireless access network through the N2 interface by AMF; or the core network perception network function sends it to the UPF, and the UPF sends it to the wireless access network through the N3 interface; or it is sent to the wireless access network (such as a base station) through a newly defined interface; the signaling transmission between wireless access network devices can be through the Xn interface.

[0342] In an embodiment of the present application, a target signal is measured to obtain a measurement result; wherein the target signal includes M Chirp signals, where M is a positive integer; a Chirp signal i among the M Chirp signals has a starting frequency of a first time domain resource and a starting frequency of a second time domain resource, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different; the Chirp signal i is a Chirp signal with an index or sequence number of i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M. In this way, measurement based on M Chirp signals can be achieved, and the Chirp signal has the characteristic of a low peak-to-average ratio. Therefore, measurement using the above-mentioned target signal can reduce the peak-to-average ratio during measurement to improve the measurement performance of the device. In addition, since the starting frequency of the Chirp signal i in the first time domain resource is the first frequency and the starting frequency in the second time domain resource is the second frequency, the first time domain resource and the second time domain resource are continuous, and the first frequency and the second frequency are different, the characteristics of the Chirp signal in the target signal corresponding to different terminals or antenna ports can be different, which is beneficial to the randomization of interference between multiple terminals or multiple ports, and further improves the measurement performance.

[0343] Please refer to FIG9 , which is a flowchart of a signal sending method provided in an embodiment of the present application. As shown in FIG9 , the method includes the following steps:

[0344] Step 901: The second device sends a target signal, where the target signal is used for measurement.

[0345] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0346] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0347] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0348] Optionally, the second frequency is the highest frequency or the lowest frequency of the Chirp signal i;

[0349] Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

[0350] Optionally, when the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i;

[0351] or,

[0352] When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

[0353] Optionally, the Chirp signal i has at least one of the following characteristics:

[0354] The frequency modulation slope of the Chirp signal i satisfies Among them, k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, T Chirp is the duration of Chirp signal i;

[0355] The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, is a complex vector;

[0356] The Chirp signal i is time-division multiplexed with the orthogonal frequency division multiplexing OFDM signal;

[0357] The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following:

[0358] Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, and index of Chirp signal i.

[0359] Optionally, the duration of the Chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix CP; or,

[0360] The duration of the Chirp signal i is equal to the duration of P OFDM symbols excluding CP;

[0361] Wherein, P is a positive integer.

[0362] Optionally, the perception information includes at least one of the following:

[0363] Perception area identifier, identifier indicating whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, and information about devices involved in perception measurement.

[0364] Optionally, the first parameter includes at least one of the following:

[0365] Frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset, and time domain offset.

[0366] Optionally, the frequency modulation slope satisfies Among them, k i is the frequency modulation slope of the Chirp signal i, b i is the i-th element in a first sequence, the first sequence being associated with the target information;

[0367] or,

[0368] The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

[0369] Optionally, the target signal is used for at least one of the following:

[0370] Perception-related measurements, communication-related measurements.

[0371] Optionally, the communication-related measurement result includes at least one of the following:

[0372] Precoding matrix indicator PMI, rank indicator RI, channel quality indicator CQI, reference signal received power RSRP, reference signal received quality RSRQ, received signal strength indicator RSSI, signal-to-noise ratio SNR, signal-to-interference plus noise ratio SINR, bit error rate BER, block error rate BLER, beam indicator.

[0373] Optionally, the second parameter of the target signal is associated with the perception requirement information, and the second parameter includes at least one of the following:

[0374] Sending cycle, time interval, bandwidth, and duration.

[0375] Optionally, the time interval between two adjacent Chirp signals included in the target signal meets a maximum unambiguous velocity measurement range requirement or a maximum unambiguous Doppler measurement range requirement;

[0376] or,

[0377] In the case where the measurement includes a perception measurement, the duration of the target signal meets a Doppler resolution requirement or a velocity resolution requirement;

[0378] or,

[0379] In a case where the measurement includes perception measurement, the bandwidth of the target signal meets a delay resolution requirement or a distance resolution requirement.

[0380] Optionally, the method further includes:

[0381] The second device sends indication information, where the indication information is used to indicate at least one of the following:

[0382] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0383] The configuration information of the target signal includes at least one of the following:

[0384] At least one item of target information, wherein a first parameter of a Chirp signal in the target signal is associated with the target information;

[0385] Sequence information of a first sequence used to determine the frequency modulation slope of the Chirp signal in the target signal;

[0386] Sequence information of a second sequence used to determine a modulation coefficient of a Chirp signal in the target signal;

[0387] Frequency modulation slope information of the Chirp signal in the target signal;

[0388] Frequency domain resource information of the Chirp signal in the target signal;

[0389] Time domain resource information of the Chirp signal in the target signal;

[0390] The number of chirp signals in the target signal.

[0391] Optionally, the frequency domain resource information includes at least one of the following:

[0392] The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, and the frequency domain resource length of the Chirp signal in the target signal, where the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

[0393] Optionally, the time domain resource information includes at least one of the following:

[0394] The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, and the time domain offset.

[0395] It should be noted that this embodiment is an implementation of the second device corresponding to the embodiment shown in Figure 3. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 3. In order to avoid repeated description, this embodiment will not be repeated.

[0396] The following describes the method provided in the embodiments of the present application through multiple examples:

[0397] Example 1:

[0398] This embodiment mainly describes the process of device A sending and device B receiving a sensing signal. In this embodiment, a base station sends a signal and a terminal receives a target signal for sensing as an example. The specific signal transmission, reception, and interaction process is described, as shown in Figure 10, including the following steps:

[0399] Step 1: The sensing network function sends sensing requirement information to the base station (optional).

[0400] Step 2: The base station sends instruction information to the terminal, where the instruction information includes at least one of the following:

[0401] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0402] The target signal configuration information includes at least one of the following:

[0403] At least one item of the target information is used by the receiving end to determine the target signal based on the relationship between the generation of the Chirp signal in the target signal and the target information;

[0404] Information for determining the first sequence or second sequence of the frequency modulation slope or modulation coefficient in the Chirp signal, including sequence length and sequence generation method. The first sequence or second sequence can also be determined based on target information and preset calculation rules;

[0405] The frequency modulation slope information of the chirp signal in the target signal includes the frequency modulation slope information of at least one chirp signal, or a list of the frequency modulation slopes of all chirp signals, wherein the frequency modulation slope information includes the absolute value of the frequency modulation slope or the polarity of the frequency modulation slope (positive or negative);

[0406] The frequency domain resource information of the Chirp signal in the target signal includes at least one of the following: the Chirp signal frequency domain resource length, that is, the bandwidth (that is, the target signal bandwidth); the first frequency; the second frequency; the frequency domain offset / frequency domain cyclic shift f offset ; The difference between the Chirp signal bandwidth and the frequency domain offset Bf offset ;

[0407] Time domain resource information of at least one chirp signal in the target signal, including at least one of the following:

[0408] The time domain resource length of the Chirp signal, that is, the duration, may be equal to the OFDM symbol duration, or alternatively, may be equal to the duration of multiple OFDM symbols;

[0409] The time interval △T between Chirp signals is the target signal transmission period for the target signal sent in a period / half period.

[0410] Time domain offset / time domain cyclic shift T offset ;

[0411] The difference between the Chirp duration and the time domain offset T Chirp -T offset .

[0412] For a target signal sent non-periodically, the number M of Chirp signals contained in the target signal is also included.

[0413] In addition to the above content, the configuration information of the target signal also includes other configuration information. Please refer to the embodiment shown in Figure 3 for details, which will not be described here in detail.

[0414] Measurement configuration information, including at least one of the following:

[0415] An indication of the signal resource being measured, such as a signal resource identifier (ID).

[0416] The number of signal resources measured;

[0417] Perceptual measurement quantity;

[0418] The reporting configuration, i.e., the criteria for reporting the measurement result of the second device, includes at least one of the reported time-frequency domain resource configuration, the reporting period, and the reported triggering event. The triggering event includes at least one of the following:

[0419] Events of entering a specific area (e.g., a neighborhood);

[0420] Events arriving at a specific time;

[0421] An event where a certain type of measurement signal reaches a certain threshold;

[0422] Events where the device moves more than some predefined (linear) distance from its previous position;

[0423] Events where the device orientation changes by more than some predefined angle. The device orientation can refer to the orientation of components on the device, such as antennas and sensors.

[0424] Events where the device's movement speed exceeds some predefined speed threshold;

[0425] An event in which changes in environmental information (such as temperature, humidity, or light intensity) measured by device sensors exceed a certain range.

[0426] The measurement auxiliary information includes at least one of the following:

[0427] Beam indication of the transmit beam, including at least one of the total number of transmit beams, the number of sensing beams, and the number of communication beams

[0428] Receive beam indication, including a recommended receive beam direction or corresponding index;

[0429] location information of the first device, or direction information of the first device relative to the second device;

[0430] Perceive demand information.

[0431] Among them, at least one item included in the above indication information can also be sent by the perception network function to the terminal or base station; and at least two items in the indication information can be sent by the same signaling, or sent by different signaling, and there is no restriction on the order of sending.

[0432] Step 3: The base station transmits the target signal.

[0433] Step 4: The terminal receives the target signal and performs perception measurement (or communication measurement) to obtain a perception measurement result.

[0434] Step 5: The terminal sends the perception measurement result to the perception network function.

[0435] Step 6: The perception network function calculates the perception result based on the perception measurement result. Optionally, the terminal may send the perception measurement result to the base station, and the base station may calculate the perception result based on the perception measurement result and send it to the perception network function.

[0436] If the target signal is a signal used for channel measurement or beam management, communication-related measurement results must also be fed back, including but not limited to at least one of PMI, RI, CQI, RSRP, RSRQ, RSSI, SNR, SINR, BER, BLER, and beam indication (e.g., beam index).

[0437] The perception result is further calculated based on the perception measurement result. The perception measurement result and the perception result are the values ​​of the perception measurement quantities. For example, the perception measurement result is the delay and angle information corresponding to the perception target, and the perception result is the position or trajectory information of the perception target.

[0438] It should be noted that for the scenario where A sends and B receives perception and communication, the terminal can also send a target signal according to the indication information after receiving the indication information, and the base station receives the signal to measure the perception measurement result and sends it to the perception network function; or the target signal is sent and received between base stations, or between terminals. This embodiment does not limit this.

[0439] Example 2:

[0440] This embodiment describes the self-transmitting and self-receiving sensing and communication process. In this embodiment, a base station sends a target signal and receives a target signal echo for sensing as an example. The specific signal transmission, reception, and interaction process is illustrated as shown in FIG11 , including the following steps:

[0441] Step 1: The sensing network function sends sensing requirement information to the base station (optional).

[0442] Step 2: The base station sends instruction information to the terminal, where the instruction information includes at least one of the following:

[0443] Configuration information of the target signal;

[0444] Measurement configuration information: For large customers, when the target signal is a reference signal used by the terminal for channel estimation and demodulation, or when the target signal is not used for communication, there is no need to send measurement configuration information;

[0445] Measurement auxiliary information;

[0446] Step 3: The base station sends a target signal.

[0447] Step 4: Receive the target signal and measure it. This step includes:

[0448] The base station performs measurements based on the received target signal echoes to obtain perception measurement results.

[0449] The terminal receives the target signal and performs measurement to obtain a communication measurement result; or, the terminal receives the target signal and uses it for channel estimation and demodulation.

[0450] Step 5: Feedback of measurement results. This step includes:

[0451] The base station sends the perception measurement result to the perception network function.

[0452] The terminal sends the communication measurement result to the base station. When the target signal is a reference signal used by the terminal for channel estimation and demodulation, or the target signal is not used for communication, there is no need to feed back the measurement result.

[0453] Step 6: The perception network function calculates the perception result based on the perception measurement result. Alternatively, the base station may calculate the perception result based on the perception measurement result and send it to the perception network function.

[0454] It should be noted that for the scenario of spontaneous perception and communication, the terminal can also send a target signal according to the indication information after receiving the indication information, and the terminal receives the target signal echo for measurement, obtains the perception measurement result and sends it to the perception network function, and the base station receives the target signal for measurement to obtain the communication measurement result, or the base station receives the target signal for channel estimation and demodulation.

[0455] The method provided in the embodiments of the present application can improve the problem of high peak-to-average ratio when the OFDM system reference signal is used for sensing. It is well compatible with the OFDM system signal generation and mapping process, and can use time-domain mixing for reception processing, reducing the complexity of reception processing and facilitating self-interference suppression. In addition, the use of chirp signals with different frequency modulation slopes, cyclic shifts (starting frequencies), or phase modulation to form the sensing signal is conducive to randomizing interference between multiple users in sensing applications and improving sensing performance.

[0456] 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.

[0457] 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.

[0458] 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:

[0459] The measurement module 1201 is used to measure the target signal and obtain a measurement result;

[0460] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0461] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0462] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0463] Optionally, the second frequency is the highest frequency or the lowest frequency of the Chirp signal i;

[0464] Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

[0465] Optionally, when the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i;

[0466] or,

[0467] When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

[0468] Optionally, the Chirp signal i has at least one of the following characteristics:

[0469] The frequency modulation slope of the Chirp signal i satisfies Among them, k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, T Chirp is the duration of Chirp signal i;

[0470] The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, is a complex vector;

[0471] The Chirp signal i is time-division multiplexed with the orthogonal frequency division multiplexing OFDM signal;

[0472] The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following:

[0473] Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, and index of Chirp signal i.

[0474] Optionally, the duration of the Chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix CP; or,

[0475] The duration of the Chirp signal i is equal to the duration of P OFDM symbols excluding CP;

[0476] Wherein, P is a positive integer.

[0477] Optionally, the perception information includes at least one of the following:

[0478] Perception area identifier, identifier indicating whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, and information about devices involved in perception measurement.

[0479] Optionally, the first parameter includes at least one of the following:

[0480] Frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset, and time domain offset.

[0481] Optionally, the frequency modulation slope satisfies Among them, k i is the frequency modulation slope of the Chirp signal i, b i is the i-th element in a first sequence, the first sequence being associated with the target information;

[0482] or,

[0483] The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

[0484] Optionally, the measurement result includes at least one of the following:

[0485] Perception-related measurement results, communication-related measurement results.

[0486] Optionally, the communication-related measurement result includes at least one of the following:

[0487] Precoding matrix indicator PMI, rank indicator RI, channel quality indicator CQI, reference signal received power RSRP, reference signal received quality RSRQ, received signal strength indicator RSSI, signal-to-noise ratio SNR, signal-to-interference plus noise ratio SINR, bit error rate BER, block error rate BLER, beam indicator.

[0488] Optionally, the second parameter of the target signal is associated with the perception requirement information, and the second parameter includes at least one of the following:

[0489] Sending cycle, time interval, bandwidth, and duration.

[0490] Optionally, the time interval between two adjacent Chirp signals included in the target signal meets a maximum unambiguous velocity measurement range requirement or a maximum unambiguous Doppler measurement range requirement;

[0491] or,

[0492] In the case where the measurement includes a perception measurement, the duration of the target signal meets a Doppler resolution requirement or a velocity resolution requirement;

[0493] or,

[0494] In a case where the measurement includes perception measurement, the bandwidth of the target signal meets a delay resolution requirement or a distance resolution requirement.

[0495] Optionally, the device further comprises:

[0496] A receiving module is configured to receive indication information, where the indication information is configured to indicate at least one of the following:

[0497] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0498] Optionally, the configuration information of the target signal includes at least one of the following:

[0499] At least one item of target information, wherein a first parameter of a Chirp signal in the target signal is associated with the target information;

[0500] Sequence information of a first sequence used to determine the frequency modulation slope of the Chirp signal in the target signal;

[0501] Sequence information of a second sequence used to determine a modulation coefficient of a Chirp signal in the target signal;

[0502] Frequency modulation slope information of the Chirp signal in the target signal;

[0503] Frequency domain resource information of the Chirp signal in the target signal;

[0504] Time domain resource information of the Chirp signal in the target signal;

[0505] The number of chirp signals in the target signal.

[0506] Optionally, the frequency domain resource information includes at least one of the following:

[0507] The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, and the frequency domain resource length of the Chirp signal in the target signal, where the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

[0508] Optionally, the time domain resource information includes at least one of the following:

[0509] The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, and the time domain offset.

[0510] The above-mentioned measuring device can improve the measuring performance of the equipment.

[0511] In the embodiments of the present application, the measuring device 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 chip. For example, the electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals listed in the embodiments of the present application, and the other device can be a server, a network attached storage (NAS), etc., which is not specifically limited in the embodiments of the present application.

[0512] The measuring device provided in the embodiment of the present application can implement each process implemented in the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0513] Please refer to FIG. 13 , which is a structural diagram of a signal sending device provided in an embodiment of the present application. As shown in FIG. 13 , the signal sending device 1300 includes:

[0514] A first sending module 1301 is configured to send a target signal, where the target signal is used for measurement;

[0515] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0516] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0517] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0518] Optionally, the second frequency is the highest frequency or the lowest frequency of the Chirp signal i;

[0519] Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

[0520] Optionally, when the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i;

[0521] or,

[0522] When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

[0523] Optionally, the Chirp signal i has at least one of the following characteristics:

[0524] The frequency modulation slope of the Chirp signal i satisfies Among them, k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, T Chirp is the duration of Chirp signal i;

[0525] The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, is a complex vector;

[0526] The Chirp signal i is time-division multiplexed with the orthogonal frequency division multiplexing OFDM signal;

[0527] The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following:

[0528] Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, and index of Chirp signal i.

[0529] Optionally, the duration of the Chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix CP; or,

[0530] The duration of the Chirp signal i is equal to the duration of P OFDM symbols excluding CP;

[0531] Wherein, P is a positive integer.

[0532] Optionally, the perception information includes at least one of the following:

[0533] Perception area identifier, identifier indicating whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, and information about devices involved in perception measurement.

[0534] Optionally, the first parameter includes at least one of the following:

[0535] Frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset, and time domain offset.

[0536] Optionally, the frequency modulation slope satisfies Among them, k i is the frequency modulation slope of the Chirp signal i, b iis the i-th element in a first sequence, the first sequence being associated with the target information;

[0537] or,

[0538] The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

[0539] Optionally, the target signal is used for at least one of the following:

[0540] Perception-related measurements, communication-related measurements.

[0541] Optionally, the communication-related measurement result includes at least one of the following:

[0542] Precoding matrix indicator PMI, rank indicator RI, channel quality indicator CQI, reference signal received power RSRP, reference signal received quality RSRQ, received signal strength indicator RSSI, signal-to-noise ratio SNR, signal-to-interference plus noise ratio SINR, bit error rate BER, block error rate BLER, beam indicator.

[0543] Optionally, the second parameter of the target signal is associated with the perception requirement information, and the second parameter includes at least one of the following:

[0544] Sending cycle, time interval, bandwidth, and duration.

[0545] Optionally, the time interval between two adjacent Chirp signals included in the target signal meets a maximum unambiguous velocity measurement range requirement or a maximum unambiguous Doppler measurement range requirement;

[0546] or,

[0547] In the case where the measurement includes a perception measurement, the duration of the target signal meets a Doppler resolution requirement or a velocity resolution requirement;

[0548] or,

[0549] In a case where the measurement includes perception measurement, the bandwidth of the target signal meets a delay resolution requirement or a distance resolution requirement.

[0550] Optionally, the device further comprises:

[0551] The second sending module is configured to send indication information, where the indication information is used to indicate at least one of the following:

[0552] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0553] The configuration information of the target signal includes at least one of the following:

[0554] At least one item of target information, wherein a first parameter of a Chirp signal in the target signal is associated with the target information;

[0555] Sequence information of a first sequence used to determine the frequency modulation slope of the Chirp signal in the target signal;

[0556] Sequence information of a second sequence used to determine a modulation coefficient of a Chirp signal in the target signal;

[0557] Frequency modulation slope information of the Chirp signal in the target signal;

[0558] Frequency domain resource information of the Chirp signal in the target signal;

[0559] Time domain resource information of the Chirp signal in the target signal;

[0560] The number of chirp signals in the target signal.

[0561] Optionally, the frequency domain resource information includes at least one of the following:

[0562] The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, and the frequency domain resource length of the Chirp signal in the target signal, where the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

[0563] Optionally, the time domain resource information includes at least one of the following:

[0564] The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, and the time domain offset.

[0565] The above-mentioned signal sending device can improve the measurement performance of the equipment.

[0566] The signal transmitting device in the embodiment of the present application may 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 may be a terminal or a network-side device.

[0567] 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 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0568] Optionally, as shown in Figure 14, an embodiment of the present application further provides a communication device 1400, including a processor 1401 and a memory 1402, wherein the memory 1402 stores a program or instruction that can be run on the processor 1401. For example, when the communication device 1400 is a first device, the program or instruction is executed by the processor 1401 to implement the various steps of the above-mentioned measurement method embodiment and can achieve the same technical effect. When the communication device 1400 is a second device, the program or instruction is executed by the processor 1401 to implement the various steps of the above-mentioned signal transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0569] An embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to measure a target signal and obtain a measurement result; wherein the target signal includes M chirped Chirp signals, M is a positive integer; Chirp signal i among the M Chirp signals has a starting frequency of a first time domain resource and a starting frequency of a second time domain resource, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different; the Chirp signal i is a Chirp signal with an index or sequence number of i among the M Chirp signals, i is an integer greater than or equal to 0, and a positive integer less than M. This communication device embodiment corresponds to the above-mentioned measurement method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the communication device embodiment and can achieve the same technical effect.

[0570] Specifically, Figure 15 is a schematic diagram of the hardware structure of a device that implements an embodiment of the present application, and the device is a first device or a second device.

[0571] The device 1500 includes but is not limited to: a radio frequency unit 1501, a network module 1502, an audio output unit 1503, an input unit 1504, a sensor 1505, a display unit 1506, a user input unit 1507, an interface unit 1508, a memory 1509 and at least some of the components of the processor 1510.

[0572] Those skilled in the art will appreciate that device 1500 may also include a power source (such as a battery) to power various components. The power source may be logically connected to processor 1510 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The device structure shown in FIG15 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.

[0573] It should be understood that in an embodiment of the present application, the input unit 1504 may include a graphics processing unit (GPU) 15041 and a microphone 15042, and the graphics processor 15041 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 1506 may include a display panel 15061, and the display panel 15061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1507 includes a touch panel 15071 and at least one of other input devices 15072. The touch panel 15071 is also called a touch screen. The touch panel 15071 may include two parts: a touch detection device and a touch controller. Other input devices 15072 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 a joystick, which will not be repeated here.

[0574] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1501 may transmit the data to the processor 1510 for processing. Furthermore, the radio frequency unit 1501 may send uplink data to the network-side device. Typically, the radio frequency unit 1501 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0575] The memory 1509 can be used to store software programs or instructions and various data. The memory 1509 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 1509 may include a volatile memory or a non-volatile memory, or the memory 1509 may include both volatile and non-volatile memories. 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 1509 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0576] Processor 1510 may include one or more processing units. Optionally, processor 1510 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 1510.

[0577] In this embodiment, the above device is taken as the first device, and the first device is taken as the terminal for illustration.

[0578] The radio frequency unit 1501 is configured to measure the target signal and obtain a measurement result;

[0579] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0580] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0581] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0582] Optionally, the second frequency is the highest frequency or the lowest frequency of the Chirp signal i;

[0583] Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

[0584] Optionally, when the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i;

[0585] or,

[0586] When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

[0587] Optionally, the Chirp signal i has at least one of the following characteristics:

[0588] The frequency modulation slope of the Chirp signal i satisfies Among them, k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, T Chirp is the duration of Chirp signal i;

[0589] The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, is a complex vector;

[0590] The Chirp signal i is time-division multiplexed with the orthogonal frequency division multiplexing OFDM signal;

[0591] The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following:

[0592] Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, and index of Chirp signal i.

[0593] Optionally, the duration of the Chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix CP; or,

[0594] The duration of the Chirp signal i is equal to the duration of P OFDM symbols excluding CP;

[0595] Wherein, P is a positive integer.

[0596] Optionally, the perception information includes at least one of the following:

[0597] Perception area identifier, identifier indicating whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, and information about devices involved in perception measurement.

[0598] Optionally, the first parameter includes at least one of the following:

[0599] Frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset, and time domain offset.

[0600] Optionally, the frequency modulation slope satisfies Among them, k i is the frequency modulation slope of the Chirp signal i, b i is the i-th element in a first sequence, the first sequence being associated with the target information;

[0601] or,

[0602] The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

[0603] Optionally, the measurement result includes at least one of the following:

[0604] Perception-related measurement results, communication-related measurement results.

[0605] Optionally, the communication-related measurement result includes at least one of the following:

[0606] Precoding matrix indicator PMI, rank indicator RI, channel quality indicator CQI, reference signal received power RSRP, reference signal received quality RSRQ, received signal strength indicator RSSI, signal-to-noise ratio SNR, signal-to-interference plus noise ratio SINR, bit error rate BER, block error rate BLER, beam indicator.

[0607] Optionally, the second parameter of the target signal is associated with the perception requirement information, and the second parameter includes at least one of the following:

[0608] Sending cycle, time interval, bandwidth, and duration.

[0609] Optionally, the time interval between two adjacent Chirp signals included in the target signal meets a maximum unambiguous velocity measurement range requirement or a maximum unambiguous Doppler measurement range requirement;

[0610] or,

[0611] In the case where the measurement includes a perception measurement, the duration of the target signal meets a Doppler resolution requirement or a velocity resolution requirement;

[0612] or,

[0613] In a case where the measurement includes perception measurement, the bandwidth of the target signal meets a delay resolution requirement or a distance resolution requirement.

[0614] Optionally, the radio frequency unit 1501 is further configured to:

[0615] Receive indication information, where the indication information is used to indicate at least one of the following:

[0616] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0617] Optionally, the configuration information of the target signal includes at least one of the following:

[0618] At least one item of target information, wherein a first parameter of a Chirp signal in the target signal is associated with the target information;

[0619] Sequence information of a first sequence used to determine the frequency modulation slope of the Chirp signal in the target signal;

[0620] Sequence information of a second sequence used to determine a modulation coefficient of a Chirp signal in the target signal;

[0621] Frequency modulation slope information of the Chirp signal in the target signal;

[0622] Frequency domain resource information of the Chirp signal in the target signal;

[0623] Time domain resource information of the Chirp signal in the target signal;

[0624] The number of chirp signals in the target signal.

[0625] Optionally, the frequency domain resource information includes at least one of the following:

[0626] The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, and the frequency domain resource length of the Chirp signal in the target signal, where the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

[0627] Optionally, the time domain resource information includes at least one of the following:

[0628] The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, and the time domain offset.

[0629] The above devices can improve the measurement performance of the device.

[0630] 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 perception measurement result sending method and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0631] 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 13.

[0632] 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 above-mentioned signal transmission method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this device embodiment and can achieve the same technical effects.

[0633] An embodiment of the present application also provides a device, including a processor and a communication interface, wherein the communication interface is used to send a target signal, and the target signal is used for measurement; wherein the target signal includes M chirped Chirp signals, where M is a positive integer; the Chirp signal i among the M Chirp signals has a starting frequency of a first time domain resource and a starting frequency of a second time domain resource, the first time domain resource is continuous with the second time domain resource, and the first frequency and the second frequency are different; the Chirp signal i is a Chirp signal with an index or serial number of i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0634] Specifically, an embodiment of the present application further provides a device, which is a first device or a second device. As shown in Figure 16, the device 1600 includes: an antenna 1601, a radio frequency device 1602, a baseband device 1603, a processor 1604, and a memory 1605. The antenna 1601 is connected to the radio frequency device 1602. In the uplink direction, the radio frequency device 1602 receives information through the antenna 1601 and sends the received information to the baseband device 1603 for processing. In the downlink direction, the baseband device 1603 processes the information to be sent and sends it to the radio frequency device 1602. The radio frequency device 1602 processes the received information and sends it through the antenna 1601.

[0635] The signal sending method in the above embodiment may be implemented in the baseband device 1603 , which includes a baseband processor.

[0636] The baseband device 1603 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 16, one of the chips is, for example, a baseband processor, which is connected to the memory 1605 through a bus interface to call the program in the memory 1605 and execute the device operations shown in the above method embodiment.

[0637] The device may further include a network interface 1606 , such as a Common Public Radio Interface (CPRI).

[0638] Specifically, the device 1600 of the embodiment of the present application also includes: instructions or programs stored in the memory 1605 and executable on the processor 1604. The processor 1604 calls the instructions or programs in the memory 1605 to execute the methods executed by the modules shown in FIG13 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0639] In this embodiment, the above device is taken as an example for description as the second device.

[0640] The radio frequency device 1602 is used to send a target signal, and the target signal is used for measurement;

[0641] Wherein, the target signal includes M chirp signals, where M is a positive integer;

[0642] A Chirp signal i among the M Chirp signals has a starting frequency in a first time domain resource being a first frequency, and a starting frequency in a second time domain resource being a second frequency, the first time domain resource and the second time domain resource being continuous, and the first frequency and the second frequency being different;

[0643] The Chirp signal i is the Chirp signal with index or sequence number i among the M Chirp signals, where i is an integer greater than or equal to 0 and a positive integer less than M.

[0644] Optionally, the second frequency is the highest frequency or the lowest frequency of the Chirp signal i;

[0645] Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

[0646] Optionally, when the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i;

[0647] or,

[0648] When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

[0649] Optionally, the Chirp signal i has at least one of the following characteristics:

[0650] The frequency modulation slope of the Chirp signal i satisfies Among them, k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, T Chirp is the duration of Chirp signal i;

[0651] The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, is a complex vector;

[0652] The Chirp signal i is time-division multiplexed with the orthogonal frequency division multiplexing OFDM signal;

[0653] The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following:

[0654] Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, and index of Chirp signal i.

[0655] Optionally, the duration of the Chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix CP; or,

[0656] The duration of the Chirp signal i is equal to the duration of P OFDM symbols excluding CP;

[0657] Wherein, P is a positive integer.

[0658] Optionally, the perception information includes at least one of the following:

[0659] Perception area identifier, identifier indicating whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, and information about devices involved in perception measurement.

[0660] Optionally, the first parameter includes at least one of the following:

[0661] Frequency modulation slope, modulation coefficient, the first frequency, frequency domain offset, and time domain offset.

[0662] Optionally, the frequency modulation slope satisfies Among them, k i is the frequency modulation slope of the Chirp signal i, b i is the i-th element in a first sequence, the first sequence being associated with the target information;

[0663] or,

[0664] The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

[0665] Optionally, the target signal is used for at least one of the following:

[0666] Perception-related measurements, communication-related measurements.

[0667] Optionally, the communication-related measurement result includes at least one of the following:

[0668] Precoding matrix indicator PMI, rank indicator RI, channel quality indicator CQI, reference signal received power RSRP, reference signal received quality RSRQ, received signal strength indicator RSSI, signal-to-noise ratio SNR, signal-to-interference plus noise ratio SINR, bit error rate BER, block error rate BLER, beam indicator.

[0669] Optionally, the second parameter of the target signal is associated with the perception requirement information, and the second parameter includes at least one of the following:

[0670] Sending cycle, time interval, bandwidth, and duration.

[0671] Optionally, the time interval between two adjacent Chirp signals included in the target signal meets a maximum unambiguous velocity measurement range requirement or a maximum unambiguous Doppler measurement range requirement;

[0672] or,

[0673] In the case where the measurement includes a perception measurement, the duration of the target signal meets a Doppler resolution requirement or a velocity resolution requirement;

[0674] or,

[0675] In a case where the measurement includes perception measurement, the bandwidth of the target signal meets a delay resolution requirement or a distance resolution requirement.

[0676] Optionally, the radio frequency device 1602 is further configured to:

[0677] Sending instruction information, where the instruction information is used to indicate at least one of the following:

[0678] Configuration information of the target signal, measurement configuration information, and measurement assistance information.

[0679] The configuration information of the target signal includes at least one of the following:

[0680] At least one item of target information, wherein a first parameter of a Chirp signal in the target signal is associated with the target information;

[0681] Sequence information of a first sequence used to determine the frequency modulation slope of the Chirp signal in the target signal;

[0682] Sequence information of a second sequence used to determine a modulation coefficient of a Chirp signal in the target signal;

[0683] Frequency modulation slope information of the Chirp signal in the target signal;

[0684] Frequency domain resource information of the Chirp signal in the target signal;

[0685] Time domain resource information of the Chirp signal in the target signal;

[0686] The number of chirp signals in the target signal.

[0687] Optionally, the frequency domain resource information includes at least one of the following:

[0688] The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, and the frequency domain resource length of the Chirp signal in the target signal, where the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

[0689] Optionally, the time domain resource information includes at least one of the following:

[0690] The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, and the time domain offset.

[0691] The above devices can improve the measurement performance of the device.

[0692] 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.

[0693] It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 3, or can implement the method executed by each module shown in Figure 12.

[0694] 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 measurement method or signal sending method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0695] 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.

[0696] An embodiment of the present application further provides a chip, 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 various processes of the above-mentioned measurement method or signal sending method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0697] 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.

[0698] 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 measurement method or signal sending method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0699] 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 measurement method provided in the embodiment of the present application, and the second device can be used to execute the steps of the signal sending method provided in the embodiment of the present application.

[0700] 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.

[0701] 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.

[0702] 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 measurement method, comprising: A first device measures a target signal to obtain a measurement result; Wherein, the target signal includes M chirp signals, and M is a positive integer; For the chirp signal i among the M chirp signals, the starting frequency in the first time-domain resource is the first frequency, and the starting frequency in the second time-domain resource is the second frequency. The first time-domain resource and the second time-domain resource are continuous, and the first frequency and the second frequency are different; The chirp signal i is the chirp signal with index or serial number i among the M chirp signals, i is an integer greater than or equal to 0 and less than M.

2. The method according to claim 1, wherein The second frequency is the highest frequency or the lowest frequency of the chirp signal i; Or, the first frequency is a frequency between the highest frequency and the lowest frequency of the chirp signal i.

3. The method according to claim 2, wherein, When the frequency modulation slope of the chirp signal i is greater than 0, the second frequency is the highest frequency of the chirp signal i; Or, When the frequency modulation slope of the chirp signal i is less than 0, the second frequency is the lowest frequency of the chirp signal i.

4. The method according to any one of claims 1 to 3, wherein, The chirp signal i has at least one of the following characteristics: The frequency modulation slope of the Chirp signal i satisfies where k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, and T Chirp is the duration of Chirp signal i; The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, It is a complex vector; The chirp signal i is time-division multiplexed with an orthogonal frequency division multiplexing (OFDM) signal; The first parameter of the chirp signal i is associated with target information, and the target information includes at least one of the following: Sensing information, time-domain resource information, frequency-domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, index of the chirp signal i.

5. The method according to claim 4, wherein The duration of the chirp signal i is equal to the duration of P OFDM symbols including a cyclic prefix (CP); or, The duration of the chirp signal i is equal to the duration of P OFDM symbols without CP; Wherein, P is a positive integer.

6. The method according to claim 4 or 5, wherein The sensing information includes at least one of the following: Sensing area identifier, identifier indicating whether it is used for sensing, sensing service identifier, sensing service type identifier, sensing target identifier, label identifier associated with the sensing target, number of sensing targets, device information participating in the sensing measurement.

7. The method according to any one of claims 4 to 6, wherein The first parameter includes at least one of the following: Frequency modulation slope, modulation coefficient, the first frequency, frequency-domain offset, time-domain offset.

8. The method according to claim 7, wherein, The frequency modulation slope satisfies where k i is the frequency modulation slope of the i-th Chirp signal, and b i is the i-th element in the first sequence, and the first sequence is associated with the target information; Or, The modulation coefficient is the i-th element in a second sequence, and the second sequence is associated with the target information.

9. The method according to any one of claims 1 to 8, wherein The measurement result includes at least one of the following: Measurement results related to sensing, measurement results related to communication.

10. The method according to claim 9, wherein, The measurement results related to communication include at least one of the following: Precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indicator (RSSI), signal-to-noise ratio (SNR), signal-to-interference-plus-noise ratio (SINR), bit error rate (BER), block error rate (BLER), beam indicator.

11. The method according to any one of claims 1 to 10, wherein The second parameter of the target signal is associated with the sensing requirement information, and the second parameter includes at least one of the following: Transmission period, time interval, bandwidth, duration.

12. The method according to any one of claims 1 to 11, wherein The time interval between two adjacent Chirp signals included in the target signal meets the maximum unambiguous velocity measurement range requirement or the maximum unambiguous Doppler measurement range requirement; Or, When the measurement includes sensing measurement, the duration of the target signal meets the Doppler resolution requirement or the velocity resolution requirement; Or, When the measurement includes sensing measurement, the bandwidth of the target signal meets the time delay resolution requirement or the distance resolution requirement.

13. The method according to any one of claims 1 to 12, the method further includes: The first device receives indication information, and the indication information is used to indicate at least one of the following: Configuration information of the target signal, measurement configuration information, measurement assistance information.

14. The method according to claim 13, wherein, The configuration information of the target signal includes at least one of the following: At least one of the target information, and the first parameter of the Chirp signal in the target signal is associated with the target information; Sequence information of a first sequence for determining the frequency modulation slope of the Chirp signal in the target signal; Sequence information of a second sequence for determining the modulation coefficient of the Chirp signal in the target signal; Frequency modulation slope information of the Chirp signal in the target signal; Frequency domain resource information of the Chirp signal in the target signal; Time domain resource information of the Chirp signal in the target signal; The number of Chirp signals in the target signal.

15. The method according to claim 14, wherein, The frequency domain resource information includes at least one of the following: The difference between the bandwidth of the Chirp signal in the target signal and the frequency domain offset, the first frequency, the second frequency, the frequency domain offset, the frequency domain resource length of the Chirp signal in the target signal, and the frequency domain offset is the frequency domain offset of the first frequency relative to the second frequency.

16. The method according to claim 14 or 15, wherein The time domain resource information includes at least one of the following: The difference between the duration of the Chirp signal in the target signal and the time domain offset, the duration of the Chirp signal in the target signal, the time interval between two adjacent Chirp signals in the target signal, the time domain offset.

17. A signal transmission method, including: The second device transmits a target signal for measurement; Wherein, the target signal includes M chirp Chirp signals, and M is a positive integer; For the Chirp signal i among the M Chirp signals, the starting frequency in the first time domain resource is the first frequency, and the starting frequency in the second time domain resource is the second frequency. The first time domain resource and the second time domain resource are continuous, and the first frequency and the second frequency are different; The Chirp signal i is the index of the M Chirp signals or the Chirp signal with the serial number i among the M Chirp signals, and i is an integer greater than or equal to 0 and less than M; 18. The method according to claim 17, wherein, The second frequency is the highest frequency or the lowest frequency of the Chirp signal i; Alternatively, the first frequency is a frequency between the highest frequency and the lowest frequency of the Chirp signal i.

19. The method according to claim 18, wherein, When the frequency modulation slope of the Chirp signal i is greater than 0, the second frequency is the highest frequency of the Chirp signal i; Or, When the frequency modulation slope of the Chirp signal i is less than 0, the second frequency is the lowest frequency of the Chirp signal i.

20. The method according to any one of claims 17 to 19, wherein The Chirp signal i has at least one of the following characteristics: The frequency modulation slope of the Chirp signal i satisfies where k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, and T Chirp is the duration of Chirp signal i; The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, It is a complex vector; The Chirp signal i is time-division multiplexed with an orthogonal frequency division multiplexing (OFDM) signal; The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following: Perception information, time domain resource information, frequency domain resource information, antenna port index, number of antenna ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, number of antennas, codeword index, index of the Chirp signal i.

21. The method according to any one of claims 17 to 20, wherein The target signal is used for at least one of the following: Measurements related to perception, measurements related to communication.

22. The method according to any one of claims 17 to 21, wherein The second parameter of the target signal is associated with perception requirement information, and the second parameter includes at least one of the following: Transmission period, time interval, bandwidth, duration.

23. The method according to any one of claims 17 to 22, wherein The time interval between two adjacent Chirp signals included in the target signal satisfies the maximum unambiguous velocity measurement range requirement or the maximum unambiguous Doppler measurement range requirement; Or, When the measurement includes a perception measurement, the duration of the target signal satisfies the Doppler resolution requirement or the velocity resolution requirement; Or, When the measurement includes a perception measurement, the bandwidth of the target signal satisfies the time delay resolution requirement or the distance resolution requirement.

24. The method according to any one of claims 17 to 23, the method further comprising: The second device transmits indication information, and the indication information is used to indicate at least one of the following: Configuration information of the target signal, measurement configuration information, measurement assistance information.

25. A measurement device, comprising: A measurement module, configured to measure a target signal to obtain a measurement result; Wherein, the target signal includes M chirp (Chirp) signals, and M is a positive integer; For the Chirp signal i among the M Chirp signals, the starting frequency in the first time domain resource is the first frequency, and the starting frequency in the second time domain resource is the second frequency. The first time domain resource and the second time domain resource are continuous, and the first frequency and the second frequency are different; The Chirp signal i is the index among the M Chirp signals or the Chirp signal with the serial number i, i is an integer greater than or equal to 0 and less than M.

26. The apparatus according to claim 25, wherein, The Chirp signal i has at least one of the following characteristics: The frequency modulation slope of the Chirp signal i satisfies where k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, and T Chirp is the duration of Chirp signal i; The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, It is a complex vector; The Chirp signal i is time-division multiplexed with an orthogonal frequency division multiplexing (OFDM) signal; The first parameter of the Chirp signal i is associated with target information, and the target information includes at least one of the following: Perception information, time-domain resource information, frequency-domain resource information, antenna port index, number of antenna ports, code division multiplexing CDM group index, number of CDM groups, antenna index, number of antennas, codeword index, index of Chirp signal i.

27. The device according to claim 26, wherein, The first parameter includes at least one of the following: Frequency modulation slope, modulation coefficient, the first frequency, frequency-domain offset, time-domain offset.

28. The device according to claim 27, wherein, The frequency modulation slope satisfies where k i is the frequency modulation slope of the i-th Chirp signal, and b i is the i-th element in the first sequence, and the first sequence is associated with the target information; Or, The modulation coefficient is the i-th element in the second sequence, and the second sequence is associated with the target information.

29. The device according to any one of claims 25 to 28, further comprising: A receiving module, configured to receive indication information, where the indication information is used to indicate at least one of the following: Configuration information of the target signal, measurement configuration information, measurement assistance information.

30. A signal transmitting device, comprising: A first transmitting module, configured to transmit a target signal for measurement; Wherein, the target signal includes M chirp Chirp signals, and M is a positive integer; For the Chirp signal i among the M Chirp signals, the starting frequency in the first time-domain resource is the first frequency, and the starting frequency in the second time-domain resource is the second frequency. The first time-domain resource and the second time-domain resource are continuous, and the first frequency and the second frequency are different; The Chirp signal i is the index among the M Chirp signals or the Chirp signal with the serial number i, and i is an integer greater than or equal to 0 and less than M.

31. The device according to claim 30, wherein, The Chirp signal i has at least one of the following characteristics: The frequency modulation slope of the Chirp signal i satisfies where k i is the frequency modulation slope of Chirp signal i, b i is a non-zero integer, B is the bandwidth of Chirp signal i, and T Chirp is the duration of Chirp signal i; The modulation coefficient of the Chirp signal i satisfies A0 is a constant coefficient, Is a complex vector; The Chirp signal i is time-division multiplexed with an orthogonal frequency division multiplexing OFDM signal; The first parameter of the Chirp signal i is associated with the target information, and the target information includes at least one of the following: Perception information, time-domain resource information, frequency-domain resource information, antenna port index, number of antenna ports, code division multiplexing CDM group index, number of CDM groups, antenna index, number of antennas, codeword index, index of Chirp signal i.

32. The device according to claim 30 or 31, further comprising: A second transmitting module, configured to transmit indication information, where the indication information is used to indicate at least one of the following: Configuration information of the target signal, measurement configuration information, measurement assistance information.

33. A network-side device, comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the measurement method according to any one of claims 1 to 16, or when the program or instruction is executed by the processor, it implements the steps of the signal transmitting method according to any one of claims 17 to 24.

34. A readable storage medium, where a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, it implements the steps of the measurement method according to any one of claims 1 to 16, or implements the steps of the signal transmitting method according to any one of claims 17 to 24.

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