Signal measurement method and apparatus, and device

Abstract

The present application belongs to the technical field of communications. Disclosed are a signal measurement method and apparatus, and a device. The method comprises: a first device measures a first signal to obtain a first measurement result. The first measurement result comprises at least one of the following: frequency offset information, the frequency offset information being frequency offset information obtained by computing on the basis of a cyclic prefix (CP) and data of the first signal; measurement ambiguity related information, the measurement ambiguity related information being information related to measurement ambiguity that is determined on the basis of the frequency offset information and an unambiguous measurement range; first Doppler-related information, the first Doppler-related information being Doppler-related information of measurement; and second Doppler-related information, the second Doppler-related information being Doppler-related information after the measurement ambiguity is eliminated.

Description

Signal measurement method, device and equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202310916116.9 filed in China on July 25, 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 signal measurement method, device and equipment. Background Art

[0004] Devices in communication systems often measure signals. For example, a terminal measures signals from a network device or signals sent by the terminal, and a network device measures signals from the terminal or signals sent by the network device. Some related technologies suffer from poor Doppler-related measurement performance.

[0005] Summary of the Invention

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

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

[0008] The first device measures the first signal to obtain a first measurement result;

[0009] The first measurement result includes at least one of the following:

[0010] Frequency offset information, where the frequency offset information is calculated based on a cyclic prefix (CP) and data of the first signal;

[0011] Measurement ambiguity related information, where the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range;

[0012] first Doppler related information, where the first Doppler related information is measured Doppler related information;

[0013] The second Doppler related information is Doppler related information for eliminating measurement ambiguity.

[0014] In a second aspect, a signal measuring device is provided, comprising:

[0015] a measuring module, configured to measure the first signal and obtain a first measurement result;

[0016] The first measurement result includes at least one of the following:

[0017] Frequency offset information, where the frequency offset information is calculated based on the CP and data of the first signal;

[0018] Measurement ambiguity related information, where the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range;

[0019] first Doppler related information, where the first Doppler related information is measured Doppler related information;

[0020] The second Doppler related information is Doppler related information for eliminating measurement ambiguity.

[0021] In a third 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 measurement method provided in the embodiment of the present application are implemented.

[0022] In a fourth aspect, a device is provided, comprising a processor and a communication interface, wherein the processor or the communication interface is used to measure a first signal to obtain a first measurement result; wherein the first measurement result includes at least one of the following: frequency deviation information, the frequency deviation information is frequency deviation information calculated based on the CP and data of the first signal; measurement ambiguity-related information, the measurement ambiguity-related information is information related to measurement ambiguity determined based on the frequency deviation information and the unambiguous measurement range; first Doppler-related information, the first Doppler-related information is the measured Doppler-related information; second Doppler-related information, the second Doppler-related information is the Doppler-related information for eliminating measurement ambiguity.

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

[0024] In a sixth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the signal measurement method provided in an embodiment of the present application.

[0025] In a seventh aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the signal measurement method provided in the embodiments of the present application.

[0026] In an embodiment of the present application, a first device measures a first signal to obtain a first measurement result; wherein the first measurement result includes at least one of the following: frequency offset information, the frequency offset information being frequency offset information calculated based on a cyclic prefix (CP) of the first signal and data; measurement ambiguity-related information, the measurement ambiguity-related information being information related to measurement ambiguity determined based on the frequency offset information and an unambiguous measurement range; first Doppler-related information, the first Doppler-related information being Doppler-related information for measurement; and second Doppler-related information, the second Doppler-related information being Doppler-related information for eliminating measurement ambiguity. Because the measurement result includes at least one of the frequency offset information, the measurement ambiguity-related information, the first Doppler-related information, and the second Doppler-related information, measurement performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0028] FIG2 is a schematic diagram of a perception measurement scenario provided by an embodiment of the present application;

[0029] FIG3 is a flow chart of a signal measurement method provided in an embodiment of the present application;

[0030] FIG4 is a schematic diagram of an observation window provided in an embodiment of the present application;

[0031] FIG5 is a reference schematic diagram of a CP interception provided in an embodiment of the present application;

[0032] FIG6 is a reference schematic diagram of another CP interception provided in an embodiment of the present application;

[0033] FIG7 is a schematic diagram of a Doppler measurement value provided in an embodiment of the present application;

[0034] FIG8 is a schematic diagram of another Doppler measurement value provided in an embodiment of the present application;

[0035] FIG9 is a schematic diagram of a measurement performance provided by an embodiment of the present application;

[0036] FIG10 is a structural diagram of a signal measurement device provided in an embodiment of the present application;

[0037] FIG11 is a structural diagram of a communication device provided in an embodiment of the present application;

[0038] FIG12 is a structural diagram of another communication device provided in an embodiment of the present application;

[0039] FIG13 is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] 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.

[0041] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0042] 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.

[0043] 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.

[0044] 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, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a 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. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (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, etc.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.

[0045] 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 ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0046] 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:

[0047] Table 1

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] For common distance, Doppler, or speed measurements in perception measurements, measurement ambiguity occurs when the signal resource configuration does not meet the requirements. For example, for single-base radar perception, the relationship between the maximum unambiguous distance, Doppler, or speed and the signal resource configuration is:

[0059] 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, v max is the maximum unambiguous velocity, f c is the carrier frequency, c is the speed of light;

[0060] Frequency domain resource spacing satisfies Δf≤1 / τ max Or Δf≤c / (2R max ), where τ max is the maximum unambiguous delay, R max is the maximum unambiguous distance.

[0061] That is, when the frequency domain resource interval of the signal exceeds a certain value, ranging ambiguity will occur, and when the time domain resource interval exceeds a certain value, speed measurement / Doppler measurement ambiguity will occur. The signal measurement method provided in the embodiment of the present application can solve the problem of speed measurement / Doppler measurement ambiguity.

[0062] The following describes in detail a signal measurement method, apparatus, and device provided by the embodiments of the present application through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0063] Please refer to FIG3 , which is a flow chart of a signal measurement method provided in an embodiment of the present application. As shown in FIG3 , the method includes the following steps:

[0064] Step 301: A first device measures a first signal to obtain a first measurement result.

[0065] The first measurement result includes at least one of the following:

[0066] Frequency offset information, where the frequency offset information is calculated based on the CP and data of the first signal;

[0067] Measurement ambiguity related information, where the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range;

[0068] first Doppler related information, where the first Doppler related information is measured Doppler related information;

[0069] The second Doppler related information is Doppler related information for eliminating measurement ambiguity.

[0070] The first device may be a terminal or a network-side device.

[0071] The above-mentioned measurement of the first signal may be that the first device measures the first signal sent by other devices, such as the terminal measures the signal sent by the network side device or other terminals, or the network side device measures the signal sent by the terminal or other network side devices; or, the above-mentioned measurement of the first signal may be that the first device measures the first signal sent by the first device, such as the terminal measures the signal sent by the terminal, or the network side device measures the signal sent by the network side device.

[0072] The frequency offset information may be frequency offset information calculated based on the CP and data of the first signal after the first device acquires the CP and data of the first signal.

[0073] In some embodiments, when the measurement result includes measurement ambiguity-related information, the frequency offset information may be included or excluded. For example, the first device obtains the frequency offset information, but does not include the frequency offset information in the measurement result when generating the measurement result.

[0074] In some embodiments, the first Doppler-related information may be ambiguous Doppler-related information obtained by observing the first signal when Doppler ambiguity occurs; or the first Doppler-related information may be Doppler-related information obtained by observing the first signal when no Doppler ambiguity occurs. The measured Doppler-related information may also be referred to as observed Doppler-related information.

[0075] In some embodiments, the second Doppler-related information may be actual Doppler-related information calculated when Doppler ambiguity occurs, i.e., although Doppler ambiguity occurs, the first device calculates Doppler-related information that eliminates the measurement ambiguity, i.e., Doppler-related information after the measurement ambiguity is eliminated.

[0076] In some embodiments, the first Doppler-related information includes at least one of the following:

[0077] First Doppler information and first speed information, where the first speed information is speed information associated with the first Doppler information.

[0078] The first Doppler information may be a first Doppler value or a first Doppler, and the first velocity information may be velocity information calculated based on the first Doppler information, such as radial velocity information.

[0079] In addition, the first Doppler-related information may include first Doppler information or first speed information of at least one sensing target.

[0080] In some embodiments, the second Doppler-related information includes at least one of the following:

[0081] Second Doppler information and second speed information, where the second speed information is speed information associated with the second Doppler information.

[0082] The second Doppler information may be a second Doppler value or a second Doppler, that is, a Doppler value that eliminates measurement ambiguity, and the second speed information may be speed information calculated based on the second Doppler information.

[0083] In addition, the second Doppler-related information may include second Doppler information or second speed information of at least one sensing target.

[0084] In some embodiments, the above-mentioned measurements include perceptual measurements.

[0085] In the embodiment of the present application, since the measurement result includes at least one of the frequency deviation information, the measurement ambiguity related information, the first Doppler related information and the second Doppler related information, the measurement performance can be improved.

[0086] As an optional implementation manner, the measurement ambiguity related information includes at least one of the following:

[0087] Indication of whether measurement ambiguity occurs;

[0088] The measurement range indication information corresponding to the second Doppler related information.

[0089] Whether measurement ambiguity occurs indicates whether measurement ambiguity occurs in the measurement of the first signal.

[0090] For example, due to the limitation of signal resource configuration, the observable Doppler range is limited, that is, |f dmax |≤1 / 2ΔT, the Doppler observation window length is f dmax is the maximum unambiguous Doppler, ΔT is the signal time domain resource interval, and the corresponding Doppler observation window is (Window 0), as shown in Figure 4. When the actual Doppler exceeds When it falls in other Doppler observation windows, Doppler measurement ambiguity occurs. For example, the first Doppler is Based on CP calculation This indicates that the actual Doppler is located in window 1, so the final actual Doppler is (Shift an observation window). Among them, f Δ It can be the result of quantizing the frequency value.

[0091] In the embodiment of the present application, the observation window may also be referred to as the observation range, and the Doppler may also be referred to as the Doppler value.

[0092] In the above embodiment, the indication information of whether measurement ambiguity occurs is used to enable the device to determine whether measurement ambiguity occurs, so that the first Doppler-related information is directly used when no measurement ambiguity occurs, and the second Doppler-related information is used when measurement ambiguity occurs, thereby improving measurement performance.

[0093] The measurement range indication information corresponding to the second Doppler related information may include at least one of the following:

[0094] Information about a measurement range corresponding to the second Doppler related information;

[0095] an offset of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range;

[0096] An offset index of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range.

[0097] The information of the measurement range corresponding to the second Doppler related information may be information of the measurement range to which the second Doppler related information belongs.

[0098] For example: The Doppler value range corresponding to the second Doppler related information is The information of the measurement range corresponding to the second Doppler related information can be Or it is an index of the range, and the index is used to represent the Doppler value range corresponding to the second Doppler related information.

[0099] The above Doppler observation range may be limited by the signal resource configuration. If |f dmax |≤1 / 2ΔT, the Doppler observation range length is f dmax is the maximum unambiguous Doppler, ΔT is the signal time domain resource interval, as shown in Figure 4 (Window 0) In some embodiments, the Doppler observation range may be a network-side configuration or protocol agreement, or a Doppler observation range calculated based on signal resource configuration. The Doppler observation range may also be referred to as a current observation range.

[0100] The offset of the measurement range corresponding to the second Doppler related information relative to the Doppler observation range refers to the relative offset of the two measurement ranges. For example, as shown in FIG4 , the Doppler observation range is This way through It can be expressed as a positive shift relative to the Doppler observation range. Right now pass It can indicate a negative shift relative to the Doppler observation range. Right now

[0101] The offset index of the measurement range corresponding to the second Doppler related information relative to the Doppler observation range refers to the index of the relative offset of the two measurement ranges. For example, as shown in FIG4 , “0” indicates that no Doppler measurement ambiguity occurs (indicates that the actual Doppler falls within "1" means a window is shifted in the positive direction relative to the Doppler observation range (indicating that the target Doppler falls within the range of "-1" means a window shifted in the negative direction relative to the Doppler observation range (indicating that the perceived target Doppler falls within the range of within the scope).

[0102] The above offset or offset index can save the overhead of the measurement result.

[0103] In the above embodiment, by including the measurement range indication information corresponding to the second Doppler related information in the measurement result, the device using the measurement result can calculate the Doppler related information for eliminating measurement ambiguity based on the measurement range indication information, thereby improving measurement performance.

[0104] Since the measurement ambiguity related information can be used to calculate the Doppler related information to eliminate the measurement ambiguity, the measurement ambiguity related information can also be called deambiguation auxiliary information.

[0105] As an optional implementation manner, the second Doppler related information is calculated based on the first Doppler related information and the frequency offset information; or

[0106] The second Doppler related information is calculated based on the first Doppler related information and the measurement ambiguity related information.

[0107] The second Doppler related information is calculated based on the first Doppler related information and the frequency offset information. The measurement range corresponding to the second Doppler related information is determined based on the frequency offset information, and the second Doppler related information is then determined based on the measurement range and the first Doppler related information.

[0108] For example: The first Doppler measured is The above frequency deviation information is As shown in Figure 4, the actual Doppler is located in window 1, and the Doppler value that finally eliminates the measurement ambiguity (i.e., the second Doppler) is (Shift one viewing window).

[0109] The second Doppler-related information may be calculated based on the first Doppler-related information and the measurement ambiguity-related information. The corresponding measurement range may be determined by calculating the measurement ambiguity-related information based on the measurement ambiguity-related information, and then the second Doppler-related information is determined based on the measurement range and the first Doppler-related information. If the measurement ambiguity-related information indicates whether measurement ambiguity occurs, then by default, the measurement range corresponding to the second Doppler-related information is offset to the right or left by one window when measurement ambiguity occurs. This specific setting may be preset based on a business scenario or empirical values.

[0110] In this embodiment, the Doppler-related information that eliminates measurement ambiguity can be calculated using the two aforementioned methods, thereby improving measurement performance. Furthermore, since the Doppler-related information that eliminates measurement ambiguity can be calculated based on the two aforementioned methods, the Doppler-related information that eliminates measurement ambiguity can be calculated without increasing the signal time domain resource density, i.e., without increasing signal resource overhead.

[0111] In some embodiments, the first Doppler-related information or the second Doppler-related information may be a result of quantizing the Doppler value, or may be an index value corresponding to a sample point with maximum intensity in the Doppler domain dimension after a fast Fourier transform (FFT) / discrete Fourier transform (DFT) operation or a sample point with an intensity exceeding a preset threshold. For example, if the number of sampling points (number of symbols) corresponding to the FFT / DFT operation is N, and the index value corresponding to the maximum intensity in the Doppler domain dimension after the FFT / DFT operation is X (0≤X≤N-1), then the corresponding Doppler information is X.

[0112] As an optional implementation manner, the frequency offset information includes:

[0113] Frequency offset information calculated based on all CPs and data of the first signal; or

[0114] The frequency offset information is calculated based on a portion of the CP of the first signal and data, where the portion of the CP is obtained by intercepting the CP of the first signal based on CP interception information.

[0115] The above data may also be referred to as symbol data, and the above CP may also be referred to as CP data.

[0116] The CP interception information may be determined by the first device itself, or received by the first device from other devices, or agreed upon by a protocol.

[0117] The CP interception information may include at least one of the following:

[0118] CP interception starting position, CP interception end position, CP interception length.

[0119] The starting position of the above-mentioned CP interception can be an absolute time, a sampling point index, or an offset relative to a specific time domain position. For self-transmitting and self-receiving perception, the specific time domain position can be the moment when the current symbol is sent. For device A transmitting and device B receiving perception, the specific time domain position can be the starting moment of the current symbol after the receiving end timing synchronization (that is, the timing synchronization mark of A transmitting and B receiving mentioned above (the default starting moment of CP interception by the receiver)), or the arrival time of the first path of the signal for the current symbol.

[0120] The CP cutoff position may be an absolute time, a sampling point index, or an offset relative to a specific time domain position.

[0121] The CP truncation length is used to calculate the length of the CP portion of the frequency offset information.

[0122] In some embodiments, the CP interception information is determined based on at least one of the following:

[0123] signal reflection path information associated with the first signal;

[0124] Perceive target area information;

[0125] Perceive target distance information.

[0126] The signal reflection path information includes at least one of the following:

[0127] Number of signal reflection paths, delay information of signal reflection paths, and channel delay spread.

[0128] The delay information of the signal reflection path may be the reflection path delay information calculated for the first signal, or the reflection path delay information measured in advance.

[0129] The CP interception information may be determined based on at least one of the above items, and may be determined based on the above at least one item to determine the actual position of the CP of the first signal and intercept it, or determined based on the above at least one item to determine the overlapping position of the CP of the first signal of multiple reflection paths and intercept the overlapping position.

[0130] For example, the delay range of the first signal is determined based on the perceived area or distance, the actual position of the CP of the first signal is determined based on the delay range and intercepted, or the overlapping position of the CP of the first signal of multiple reflection paths in the delay range is determined to intercept the overlapping position.

[0131] For another example: there is a signal reflection path in the channel. The received signal diagram is shown in Figure 5. Time T1 represents the timing synchronization mark sent by device A and received by device B (the default starting time for intercepting CP), or the time when the self-transmitted and self-received signal is sent (the default starting time for intercepting CP). The actual arrival time of the signal reflection path is T2, which is offset by τ1 from the original default starting time for intercepting CP. In order to reduce the inter-symbol interference when using CP to calculate frequency offset, CP data is intercepted within the range of at least T2 to T3 (the actual intercepted data length can be less than the CP length), and then the corresponding data part is taken to calculate the frequency offset f Δ .

[0132] For another example: Assume that there are two signal reflection paths in the channel, and the received signal diagram is shown in Figure 6. Time T1 represents the timing synchronization mark sent by device A and received by device B (the default starting time for intercepting CP), or the time when the self-transmitted and self-received signal is sent (the default starting time for intercepting CP). The actual arrival time of signal reflection path 1 is T2, which differs from the original default starting time for intercepting CP by an offset of τ1. The actual arrival time of signal reflection path 2 is T3, which differs from the original default starting time for intercepting CP by an offset of τ2. In order to reduce the inter-symbol interference when using CP to calculate frequency offset, CP data is intercepted at least within the range of T3 to T4 (the actual intercepted data length can be less than the CP length), and then the corresponding data part is taken and the frequency offset f is calculated. Δ .

[0133] In the above implementation, the frequency offset information is calculated based on a portion of the CP of the first signal and data, which can reduce measurement interference and further improve measurement performance.

[0134] In some embodiments, such as OFDM systems, a cyclic prefix (CP) is typically inserted at the beginning of each OFDM symbol to mitigate the effects of multipath on the signal. This CP is a copy of the data at the end of the OFDM symbol. For communications systems, the CP length is typically determined by the maximum multipath delay spread (greater than the channel impulse response length). OFDM radars can also utilize CP to mitigate the effects of range sidelobes and improve ranging performance.

[0135] Taking a single OFDM symbol as an example, t = nT s (T s The received signal at the time (sampling interval) is represented as r(n), n=0,1,...,N+L-1, where n represents the time domain sampling point number, N represents the OFDM symbol length, and L represents the CP length. The frequency offset value f under the current channel environment can be obtained by performing correlation calculation using the CP part data r(n), n=0,1,...,L-1 and the corresponding OFDM symbol end part data r(n+N), n=0,1,...,L-1. Δ , the calculation process is:

[0136] or

[0137] Where * represents the conjugate operation, arg(R) represents the argument operation of the complex number, or it can be:

[0138] or

[0139] The time domain interval between the CP and the corresponding OFDM symbol end data is one OFDM symbol length. The time domain interval is small, so f Δ Determine the Doppler range under the current channel environment and thus resolve the Doppler measurement ambiguity problem.

[0140] In some implementations, the final f can be calculated by averaging the frequency offset values ​​calculated using multiple symbols (eg, each symbol involved in the current Doppler calculation). Δ , thereby improving measurement accuracy.

[0141] In some implementations, the frequency offset information may be frequency offset information calculated in the case of multiple measurement targets. Therefore, the frequency offset information may also be referred to as composite frequency offset information.

[0142] As an optional implementation manner, the first Doppler related information is Doppler related information calculated based on data of the first signal; or

[0143] The first Doppler related information is Doppler related information measured within a Doppler observation range.

[0144] The Doppler-related information calculated based on the data of the first signal may be the Doppler-related information calculated based on the data of the first signal using an FFT or Multiple Signal Classification (MUSIC) or an estimating signal parameter via rotational invariance techniques (ESPRIT) algorithm. Specifically, the Doppler-related information is calculated based only on the data of the first signal without using CP.

[0145] Since the first Doppler related information is the Doppler related information calculated based on the data of the first signal, the first Doppler related information can satisfy the maximum unambiguous Doppler measurement range corresponding to the first signal configuration corresponding to the first signal, that is, it satisfies the maximum unambiguous Doppler measurement requirement.

[0146] The above-mentioned Doppler observation range can be found in the relevant description of the above-mentioned embodiment, which will not be repeated here.

[0147] Because the first Doppler-related information is Doppler-related information measured within the Doppler observation range, the first Doppler-related information can satisfy the maximum unambiguous Doppler measurement range, that is, satisfy the maximum unambiguous Doppler measurement requirement. For example, if the value of the first Doppler-related information does not exceed the maximum unambiguous Doppler measurement range corresponding to the first signal configuration, but Doppler measurement ambiguity actually occurs, the first Doppler-related information is ambiguous Doppler-related information. For another example, if the value of the first Doppler-related information does not exceed the maximum unambiguous Doppler measurement range corresponding to the first signal configuration, and Doppler measurement ambiguity does not actually occur, the first Doppler-related information is actual Doppler-related information, and the first Doppler-related information is the same as the second Doppler-related information.

[0148] Since the first Doppler-related information is the Doppler-related information measured within the Doppler observation range, it is possible to calculate the first Doppler-related information without increasing the signal time domain resource density, that is, without increasing the signal resource overhead. That is, the first Doppler-related information meets the requirements of maximum unambiguous Doppler / speed measurement, thereby improving the measurement performance.

[0149] For example, the OFDM signal time domain resource interval used for perception is 0.005s, and the corresponding maximum unambiguous Doppler measurement range is -100 to 100Hz (considering the target's motion direction). FFT is used to calculate Doppler, and the time domain resource length corresponding to each FFT calculation window is 0.1s (20 symbols in total), and the corresponding Doppler resolution is 10Hz.

[0150] Assume that there are three dynamic targets in the environment, and the Doppler frequency shift values ​​caused by the target motion are 200 Hz, 270 Hz, and 290 Hz, respectively, which exceed the maximum unambiguous Doppler measurement range corresponding to the perception signal configuration with a time domain interval of 0.005 s.

[0151] After the first device receives the first signal, the composite frequency offset value is calculated based on the CP of the OFDM symbol in the FFT window: Δ =240Hz (to improve processing gain, the composite frequency offset value obtained by CP calculation based on 20 OFDM symbols in the FFT calculation window can be averaged as the final result), then the CP is removed and the least squares (LS) channel estimation is performed to obtain the channel information H corresponding to each perception signal time-frequency domain resource unit. Based on the channel information corresponding to different OFDM symbols, an FFT operation along the time domain dimension is performed to obtain the first Doppler related information, which are 0Hz, 70Hz, and 90Hz respectively. The first Doppler related information is the Doppler value corresponding to the three perception targets when Doppler measurement ambiguity occurs, as shown in Figure 7. Further, based on the above composite frequency offset value and the first Doppler related information, the second Doppler related information can be obtained (according to f Δ =240 Hz (shifting the Doppler observation window from -100 to 100 Hz to 100 to 300 Hz), that is, the Doppler values ​​corresponding to the three perceived targets after removing the Doppler measurement ambiguity, as shown in Figure 8.

[0152] In addition, the second Doppler value f d2 Get target speed and other perception information.

[0153] As an optional implementation manner, after the first device measures the first signal and obtains the first measurement result, the method further includes:

[0154] The first device sends a second measurement result to the second device or the third device, where the second measurement result is the same measurement result as the first measurement result, or the second measurement result is a measurement result determined based on the first measurement result.

[0155] The second measurement result is a measurement result determined based on the first measurement result, and may be a result of selecting at least a portion of the first measurement result as the second measurement result.

[0156] In the embodiment of the present application, the first device includes at least one of the following:

[0157] Terminals and wireless access network equipment;

[0158] The second device includes at least one of the following:

[0159] Terminals, wireless access network equipment, and core network equipment;

[0160] The third device includes at least one of the following:

[0161] Terminals, wireless access network equipment, and core network equipment.

[0162] For example, the first device is a terminal, the second device is a base station, the base station sends a first signal, the terminal receives the first signal and measures it, and the terminal sends a second measurement result to the base station or the core network perception network function or other base station or terminal (third device);

[0163] For another example, the first device is a base station, which autonomously sends and receives sensing signals and measures them, and sends the measurement results to the core network sensing network function or other base stations or terminals (i.e., the second device);

[0164] For another example, the first device is base station B, the second device is base station A, base station A sends a sensing signal, base station B receives the sensing signal and measures, and base station B sends the measurement result to base station A or the core network sensing network function or other base station or terminal (i.e., the third device);

[0165] For another example, the first device is a base station, the second device is a terminal, the terminal sends a perception signal, the base station receives the perception signal and measures, and sends the measurement result to the terminal or the core network perception network function or other base station or other terminal (third device);

[0166] For another example, the first device is terminal B, the second device is terminal A, terminal A sends a perception signal, terminal B receives the perception signal and measures, and terminal B sends the measurement result to terminal A or the core network perception network function or base station or other terminal (i.e., the third device);

[0167] For another example: the first device is a terminal, the terminal sends and receives perception signals and measures them by itself, and sends the measurement results to the core network perception network function or base station or other terminal (ie, the second device).

[0168] In the above embodiment, measurement interaction can be achieved between multiple devices, and the device that receives the above second measurement result can directly use the above second Doppler related information. When the second measurement result does not include the second Doppler related information, the second Doppler related information can also be calculated based on the content included in the second measurement result.

[0169] As an optional implementation manner, before the first device measures the first signal and obtains the first measurement result, the method further includes at least one of the following:

[0170] The first device receives configuration information of the first signal sent by the second device or the third device;

[0171] The first device receives measurement indication information sent by the second device or the third device;

[0172] The first device receives perception requirement information of the first signal sent by the second device or the third device.

[0173] Optionally, the configuration information includes at least one of the following:

[0174] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, Quasi Co-Location (QCL) relationship, antenna port information, CP information.

[0175] The signal resource identifier is used to distinguish different signal resource configurations.

[0176] The waveform may be OFDM, single-carrier frequency-division multiple access (SC-FDMA), orthogonal time-frequency space (OTFS), frequency modulated continuous wave (FMCW), or a pulse signal;

[0177] The above subcarrier spacing may be the subcarrier spacing of an OFDM system, for example, 30 kHz.

[0178] The guard interval can be the time interval from the moment the signal ends to the moment the latest echo signal of the signal is received. This parameter is proportional to the maximum sensing distance. For example, it can be calculated by c / (2R max ) is calculated, R max is the maximum perception distance (belonging to the perception demand information), such as for the self-transmitted and self-received perception signal, R max Represents the maximum distance between the perceived signal transmission and reception point and the signal reflection point; in some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval, and c is the speed of light.

[0179] The above-mentioned frequency domain starting position may be a starting frequency point, or a starting resource element (RE) or resource block (RB) index.

[0180] The frequency domain resource length may be a frequency domain bandwidth, which is inversely proportional to the distance resolution. The frequency domain bandwidth of each signal is B≥c / (2ΔR), where c is the speed of light and ΔR is the distance resolution.

[0181] The frequency domain resource spacing is inversely proportional to the maximum unambiguous distance or the maximum unambiguous delay. For an OFDM system, when subcarriers are continuously mapped, the frequency domain spacing is equal to the subcarrier spacing.

[0182] The above-mentioned time domain starting position can be a starting time point, or a starting symbol, time slot, or frame index.

[0183] The time domain resource length may be a burst duration, and the time domain resource length is inversely proportional to the Doppler resolution (which is perception requirement information).

[0184] The time domain resource interval may be a time interval between two adjacent signals, and the time domain resource interval is associated with a maximum unambiguous Doppler frequency shift or a maximum unambiguous speed.

[0185] The above signal power may be an interval power value, for example, a value is taken every 2dBm from -20dBm to 23dBm.

[0186] The above sequence information includes sequence type information (ZC sequence, pseudo-random sequence, etc.), sequence generation method, sequence length, etc.

[0187] The above-mentioned signal direction may be angle information or beam information of signal transmission.

[0188] The above QCL relationship may indicate that the above signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes type A, type B, type C, or type D.

[0189] The antenna port information may be a maximum number of antenna ports or an antenna port index, wherein different antenna ports may be associated with the first sequence or the second sequence generation method.

[0190] The CP information may include a CP type, such as a normal cyclic prefix (NCP), an extended cyclic prefix (ECP), or a newly designed CP dedicated to perception measurement, and may also include a CP length. The CP dedicated to perception measurement may be a CP that meets a specific length, which may be, for example, not less than τ max +τ corr , where τ max represents the maximum delay spread, τ corr To calculate f Δ The length of the CP part.

[0191] In the above implementation, the above configuration information enables the first device to better measure the first signal.

[0192] Optionally, the measurement indication information includes at least one of the following:

[0193] CP measurement indication information, measurement quantity, measurement rules, and measurement result reporting information.

[0194] The CP measurement indication information includes at least one of the following:

[0195] Indication of whether measurement is performed based on CP;

[0196] Resource information for CP measurement;

[0197] CP intercepts information.

[0198] The CP interception information can be found in the corresponding description of the above implementation manner, which will not be elaborated here.

[0199] In some implementations, the above-mentioned indication information of whether to perform measurement based on the CP may be the CP type indication information in the above-mentioned configuration information, for example, indicating that the CP type is a CP dedicated for perception measurement, and the receiving end adopts the CP-based measurement method by default.

[0200] In some implementations, the measurement may be performed based on the CP by default.

[0201] The resource information for CP measurement may include: the index or number of symbols used for CP measurement.

[0202] The above-mentioned measurement quantity corresponds to the measurement result (the perceptual measurement result is the value of the perceptual measurement quantity), and the measurement quantity includes at least one of the following:

[0203] First-level measurement quantities (received signal / original channel information), including: complex results of the received signal / channel response, amplitude / phase, I / Q path, and related operation results (operations include 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; operations also include 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);

[0204] The second-level measurement quantity (basic measurement quantity) includes: time delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

[0205] Level 3 measurement quantities (basic attributes / states), including: distance, speed, direction, spatial position, acceleration;

[0206] The fourth level of measurement (advanced attributes / states) includes: target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0207] In some embodiments, the aforementioned measurement quantity is primarily Doppler or velocity.

[0208] The measurement rule is a rule related to the first Doppler related information, and may include at least one of the following:

[0209] The time domain measurement window may specifically include a starting time domain position and a time domain resource length;

[0210] The frequency domain measurement window may specifically include a starting frequency domain position and a frequency domain resource length;

[0211] Time domain measurement interval;

[0212] Frequency domain measurement interval;

[0213] The number of sampling points for time domain calculations, specifically, the number of DFT points and / or the oversampling factor;

[0214] The number of sampling points for frequency domain calculation may specifically be the number of IDFT points and / or the oversampling factor.

[0215] For example, a first device performs Doppler calculation using an oversampled DFT vector. For example, if the number of sampling points (number of symbols) of the first signal's time-domain resource within the time-domain measurement window is N1, the number of time-domain DFT points indicated in the measurement indication information is N2, the oversampling factor is O1, and N2>N1, assuming the first device feeds back the index value corresponding to the maximum-intensity sample point in the Doppler domain dimension, then based on the number of DFT points and the oversampling factor indicated in the measurement indication information, the first device obtains channel information based on the received first signal and performs DFT calculation to obtain a number of sample points along the Doppler domain dimension of N2*O1, where the index value corresponding to the maximum-intensity sample point is X (0≤X≤N2*O1-1). The first device then feeds back X, or feeds back the base DFT sample index X1 (0≤X1≤N2-1) and the oversampling index X2 (0≤X2≤O1-1) corresponding to the maximum-intensity sample point, where X=X1*O1+X2.

[0216] Optionally, the measurement result reporting information includes at least one of the following:

[0217] Criteria information for reporting measurement results and triggering condition information for reporting measurement results.

[0218] The criteria information for reporting the measurement results may include at least one of the following:

[0219] Reported time-frequency domain resource configuration;

[0220] Reported temporal behavior;

[0221] Periodic reporting, such as reporting according to a specified time offset or period;

[0222] Semi-persistent reporting, such as reporting according to a specified period after receiving a report start indication until a report stop indication is received; wherein the report start indication is used to indicate the start of the corresponding perception report, and the report stop indication is used to indicate the cessation of reporting;

[0223] Non-periodic reporting, such as reporting at a specified time or when preset conditions are met.

[0224] The trigger condition information for reporting the measurement results is used to indicate the trigger condition for reporting, for example: the perception measurement result or the perception performance corresponding to the perception measurement result meets the preset conditions, for example: the perception measurement result meets a certain preset interval range, or the power value of the perception target associated signal component meets the preset threshold, etc.

[0225] In the above implementation manner, the above measurement indication information may enable the first device to perform more accurate measurement and reporting.

[0226] Optionally, the above-mentioned perception demand information includes at least one of the following:

[0227] Perception business, perception target area, perception object type, and perception service quality (QoS).

[0228] The above-mentioned sensing services may be classified by type or specific to a certain service, such as: environment reconstruction, breathing or heartbeat detection, positioning or trajectory tracking, motion recognition, weather monitoring, radar ranging / speed / angle measurement, etc.;

[0229] The aforementioned perception target area may refer to a location area where a perception object may exist, or a location area where imaging or environmental reconstruction is required;

[0230] The above-mentioned sensing object type can be a classification of the sensing object based on its possible motion characteristics. Each sensing object type includes information such as the motion speed, motion acceleration, and typical radar cross section (RCS) of a typical sensing object.

[0231] The above-mentioned QoS perception can perceive the performance indicators of the target area or the perception object, including at least one of the following:

[0232] Perception resolution can be divided into: ranging (or delay) resolution, angular resolution, velocity (Doppler) resolution, imaging resolution, etc.

[0233] Perception accuracy can be divided into: ranging accuracy, delay accuracy, angle measurement accuracy, speed measurement (Doppler) accuracy, positioning accuracy, etc.

[0234] Perception range can be divided into: ranging (or delay) range, speed (or Doppler) range, angle measurement range, imaging range, etc.

[0235] 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;

[0236] Perception update rate, such as the time interval between two consecutive perception executions and the acquisition of perception results;

[0237] Detection probability, such as the probability of correctly detecting the perceived object when it is present;

[0238] False alarm probability, i.e. the probability of incorrectly detecting a perceived target when the perceived target does not exist;

[0239] The maximum number of targets that can be perceived.

[0240] In the above implementation, the above-mentioned sensing demand information can enable the first device to perform measurement based on the sensing demand information, thereby saving terminal power consumption.

[0241] In some implementations, the first device determines at least part of the measurement indication information or the first signal configuration information based on the above-mentioned perception requirement information, for example, determining to use CP-assisted measurement based on the Doppler measurement range, which can save transmission overhead.

[0242] As an optional implementation manner, the first measurement result further includes:

[0243] Performance indicators.

[0244] The performance indicator information may include at least one of the following:

[0245] Reference Signal Receiving Power (RSRP), Reference Signal Received Quality (RSRQ), Signal to Noise Ratio (SNR), Signal to Interference & Noise Ratio (SINR), Perceived SNR / SINR, and Perceived Accuracy Information Calculated Based on Perceived Resolution and SNR.

[0246] The perceptual accuracy information calculated based on the perceptual resolution and SNR may include: ranging accuracy: ΔR is the distance resolution, speed measurement accuracy: Δv is the velocity resolution.

[0247] In this implementation, since the first measurement result includes performance indication information, the measurement performance can be improved.

[0248] In some embodiments, the perceived SNR may be a ratio of the perceived target associated signal power to the noise power, and the perceived SINR may be a ratio of the perceived target associated signal power to the sum of the powers of noise and interference.

[0249] Taking radar detection as an example, the method for obtaining the power of the target-related signal can be at least one of the following options:

[0250] Based on the one-dimensional delay graph obtained by fast time-dimension FFT processing of the echo signal, a constant false alarm rate (CFAR) detection is performed. The maximum amplitude sample point exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude to calculate the perceived target-associated signal power, as shown in Figure 9.

[0251] CFAR is performed based on the Doppler one-dimensional map obtained by slow-time FFT processing of the echo signal. The maximum amplitude sample point exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude to calculate the perceived target associated signal power, as shown in Figure 9.

[0252] The delay-Doppler two-dimensional map obtained by 2D-FFT processing of the echo signal is used for CFAR. The maximum amplitude sample point exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude to calculate the perceived target associated signal power.

[0253] CFAR is performed based on the delay-Doppler-angle three-dimensional graph obtained by 3D-FFT processing of the echo signal. The maximum amplitude sample point exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude to calculate the perceived target associated signal power.

[0254] In addition to the above method of using the maximum amplitude sampling point of CFAR crossing the threshold as the target sampling point, the method of determining the target signal amplitude can also be to use the maximum amplitude sampling point of CFAR crossing the threshold and the average of several adjacent crossing threshold sampling points as the target signal amplitude to calculate the perceived target associated signal power.

[0255] The method for obtaining the SNR / SINR of the echo signal may be at least one of the following options:

[0256] CFAR is performed based on the one-dimensional delay graph obtained by fast time dimension FFT processing of the echo signal. The sample point with the maximum amplitude exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude. All sample points in the one-dimensional graph that are ±ε sample points away from the target sample point are used as interference / noise sample points, and their average interference / amplitude is calculated as the interference / noise signal amplitude. Finally, the SNR / SINR is calculated using the target signal amplitude and the interference / noise signal amplitude.

[0257] Perform CFAR based on the Doppler one-dimensional map obtained by slow-time FFT processing of the echo signal. The sample point with the maximum amplitude exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude. All sample points in the one-dimensional map that are ±η sample points away from the target sample point are used as interference / noise sample points, and their average amplitude is calculated as the interference / noise signal amplitude. Finally, the SNR / SINR is calculated using the target signal amplitude and the interference / noise signal amplitude.

[0258] Based on the delay-Doppler two-dimensional map obtained by 2D-FFT processing of the echo signal, the CFAR is performed. The sample point with the maximum amplitude that exceeds the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude. All sample points in the two-dimensional map that are ±ε (fast time dimension) and ±η (slow time dimension) away from the target sample point are used as interference / noise sample points, and their average amplitude is calculated as the interference / noise signal amplitude. Finally, the SNR / SINR is calculated using the target signal amplitude and the interference / noise signal amplitude;

[0259] CFAR is performed based on the delay-Doppler-angle three-dimensional graph obtained by 3D-FFT processing of the echo signal. The sample point with the maximum amplitude exceeding the CFAR threshold is used as the target sample point, and its amplitude is used as the target signal amplitude. All sample points in the three-dimensional graph that are ±ε (fast time dimension), ±η (slow time dimension), and ±δ (angle dimension) away from the target sample point are used as interference / noise sample points, and their average amplitude is calculated as the interference / noise signal amplitude. Finally, the SNR / SINR is calculated using the target signal amplitude and the interference / noise signal amplitude;

[0260] In addition to the above method of using the maximum amplitude sample point of the CFAR threshold-crossing amplitude as the target sample point, the target signal amplitude can also be determined by using the maximum amplitude sample point of the CFAR threshold-crossing amplitude and the average of several adjacent threshold-crossing sample points as the target signal amplitude.

[0261] The method for determining the interference / noise sample points may also be to screen the interference / noise sample points determined above, wherein the screening method includes at least one of the following:

[0262] For the one-dimensional delay graph, remove several sample points near the delay of 0, and use the remaining interference / noise sample points as noise sample points;

[0263] For the Doppler one-dimensional image, remove several sample points near Doppler 0, and use the remaining interference / noise sample points as interference / noise sample points;

[0264] For the delay-Doppler two-dimensional graph, remove the interference / noise sample points in the strip range consisting of several points near the delay of 0 and the entire Doppler range, and use the remaining noise sample points as the interference / noise sample points;

[0265] For the delay-Doppler-angle three-dimensional graph, the interference / noise sample points in the slice-shaped range consisting of several points around the time dimension 0, the entire Doppler range and the entire angle range are removed, and the remaining interference / noise sample points are used as interference / noise sample points.

[0266] In some embodiments, a sensing network function, which may also be called a sensing network element or a sensing management function (Sensing Management Function, Sensing MF), may be located on the RAN side or the core network side, and refers to a network node in the core network or RAN that is responsible for at least one function, such as sensing request processing, sensing resource scheduling, sensing information interaction, and sensing data processing. For example, it may be based on an upgrade of the AMF or LMF in a 5G network, or it may be another network node or a newly defined network node. Specifically, the functional characteristics of the sensing network function / sensing network element may include at least one of the following:

[0267] Target information is interacted with a wireless signal sending device and / 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.

[0268] The perception method to be used is determined based on factors such as the type of perception service, perception service consumer information, 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 method may include: base station A sends and base station B receives, or the base station sends and the terminal receives, or base station A sends and receives by itself, or the terminal sends and the base station receives, or the terminal sends and receives by itself, or terminal A sends and terminal B receives, etc.

[0269] 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, wherein the perception device includes a wireless signal sending device and / or a wireless signal measuring device.

[0270] Manage the overall coordination and scheduling of resources required for sensing services, such as configuring sensing resources for base stations and / or terminals accordingly;

[0271] The sensory measurement values ​​are processed or calculated to obtain sensory results. Furthermore, the sensory results are verified and the sensory accuracy is estimated.

[0272] In an embodiment of the present application, a first device measures a first signal to obtain a first measurement result; wherein the first measurement result includes at least one of the following: frequency offset information, the frequency offset information being frequency offset information calculated based on a cyclic prefix (CP) of the first signal and data; measurement ambiguity-related information, the measurement ambiguity-related information being information related to measurement ambiguity determined based on the frequency offset information and an unambiguous measurement range; first Doppler-related information, the first Doppler-related information being Doppler-related information for measurement; and second Doppler-related information, the second Doppler-related information being Doppler-related information for eliminating measurement ambiguity. Because the measurement result includes at least one of the frequency offset information, the measurement ambiguity-related information, the first Doppler-related information, and the second Doppler-related information, measurement performance can be improved.

[0273] The signal measurement method provided in the embodiment of the present application can be executed by a signal measurement device. In the embodiment of the present application, the signal measurement device provided in the embodiment of the present application is described by taking the signal measurement method executed by the signal measurement device as an example.

[0274] Please refer to FIG10 , which is a structural diagram of a signal measurement device provided in an embodiment of the present application. As shown in FIG10 , the signal measurement device 1000 includes:

[0275] The measuring module 1001 is configured to measure a first signal and obtain a first measurement result.

[0276] The first measurement result includes at least one of the following:

[0277] Frequency offset information, where the frequency offset information is calculated based on a cyclic prefix CP and data of the first signal;

[0278] Measurement ambiguity related information, where the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range;

[0279] first Doppler related information, where the first Doppler related information is measured Doppler related information;

[0280] The second Doppler related information is Doppler related information for eliminating measurement ambiguity.

[0281] Optionally, the measurement ambiguity related information includes at least one of the following:

[0282] Indication of whether measurement ambiguity occurs;

[0283] The measurement range indication information corresponding to the second Doppler related information.

[0284] Optionally, the measurement range indication information corresponding to the second Doppler related information includes at least one of the following:

[0285] Information about a measurement range corresponding to the second Doppler related information;

[0286] an offset of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range;

[0287] An offset index of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range.

[0288] Optionally, the second Doppler related information is calculated based on the first Doppler related information and the frequency offset information; or

[0289] The second Doppler related information is calculated based on the first Doppler related information and the measurement ambiguity related information.

[0290] Optionally, the first Doppler related information includes at least one of the following:

[0291] first Doppler information and first speed information, wherein the first speed information is speed information associated with the first Doppler information;

[0292] or,

[0293] The second Doppler related information includes at least one of the following:

[0294] Second Doppler information and second speed information, where the second speed information is speed information associated with the second Doppler information.

[0295] Optionally, the frequency offset information includes:

[0296] Frequency offset information calculated based on all CPs and data of the first signal; or

[0297] The frequency offset information is calculated based on a portion of the CP of the first signal and data, where the portion of the CP is obtained by intercepting the CP of the first signal based on CP interception information.

[0298] Optionally, the CP interception information includes at least one of the following:

[0299] CP interception starting position, CP interception end position, CP interception length.

[0300] Optionally, the CP interception information is determined based on at least one of the following:

[0301] signal reflection path information associated with the first signal;

[0302] Perceive target area information;

[0303] Perceive target distance information.

[0304] Optionally, the signal reflection path information includes at least one of the following:

[0305] Number of signal reflection paths, delay information of signal reflection paths, and channel delay spread.

[0306] Optionally, the first Doppler related information is Doppler related information calculated based on data of the first signal; or

[0307] The first Doppler related information is Doppler related information measured within a Doppler observation range.

[0308] Optionally, the device further comprises:

[0309] The sending module is configured to send a second measurement result to a second device or a third device, where the second measurement result is the same measurement result as the first measurement result, or the second measurement result is a measurement result determined based on the first measurement result.

[0310] Optionally, the device further comprises at least one of the following:

[0311] A first receiving module, configured to receive configuration information of the first signal sent by a second device or a third device;

[0312] A second receiving module, configured to receive measurement instruction information sent by the second device or the third device;

[0313] The third receiving module is used to receive the perception requirement information of the first signal sent by the second device or the third device.

[0314] Optionally, the configuration information includes at least one of the following:

[0315] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information, CP information.

[0316] Optionally, the measurement indication information includes at least one of the following:

[0317] CP measurement indication information, measurement quantity, measurement rules, and measurement result reporting information.

[0318] Optionally, the CP measurement indication information includes at least one of the following:

[0319] Indication of whether measurement is performed based on CP;

[0320] Resource information for CP measurement;

[0321] CP intercepts information.

[0322] Optionally, the measurement result reporting information includes at least one of the following:

[0323] Criteria information for reporting measurement results and triggering condition information for reporting measurement results.

[0324] Optionally, the perception demand information includes at least one of the following:

[0325] Perceived services, perceived target areas, perceived object types, and perceived quality of service (QoS).

[0326] Optionally, the first device includes at least one of the following:

[0327] Terminals and wireless access network equipment;

[0328] or,

[0329] The second device includes at least one of the following:

[0330] Terminals, wireless access network equipment, and core network equipment;

[0331] or,

[0332] The third device includes at least one of the following:

[0333] Terminals, wireless access network equipment, and core network equipment.

[0334] Optionally, the first measurement result further includes:

[0335] Performance indicators.

[0336] The above-mentioned signal measurement device can improve the measurement performance of the equipment.

[0337] In the embodiments of the present application, the signal 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 devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0338] The signal 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.

[0339] Optionally, as shown in Figure 11, an embodiment of the present application also provides a communication device 1100, including a processor 1101 and a memory 1102, and the memory 1102 stores a program or instruction that can be run on the processor 1101. For example, when the communication device 1100 is a first device, the program or instruction is executed by the processor 1101 to implement the various steps of the above-mentioned signal measurement method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0340] An embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the processor or the communication interface is used to measure a first signal to obtain a first measurement result; wherein the first measurement result includes at least one of the following: frequency deviation information, the frequency deviation information is frequency deviation information calculated based on the CP and data of the first signal; measurement ambiguity-related information, the measurement ambiguity-related information is information related to measurement ambiguity determined based on the frequency deviation information and the unambiguous measurement range; first Doppler-related information, the first Doppler-related information is the measured Doppler-related information; second Doppler-related information, the second Doppler-related information is the Doppler-related information for eliminating measurement ambiguity. This communication device embodiment corresponds to the above-mentioned signal measurement method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this communication device embodiment and can achieve the same technical effect.

[0341] Specifically, FIG12 is a schematic diagram of the hardware structure of a device for implementing an embodiment of the present application.

[0342] The device 1200 includes but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209 and at least some of the components of the processor 1210.

[0343] Those skilled in the art will appreciate that device 1200 may also include a power source (such as a battery) to power various components. The power source may be logically connected to processor 1210 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The device structure shown in FIG12 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.

[0344] It should be understood that in an embodiment of the present application, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processor 12041 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 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include two parts: a touch detection device and a touch controller. Other input devices 12072 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.

[0345] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1201 may transmit the data to the processor 1210 for processing. Furthermore, the RF unit 1201 may send uplink data to the network-side device. Typically, the RF unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0346] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 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 1209 may include a volatile memory or a non-volatile memory, or the memory 1209 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. The volatile memory may 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 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0347] Processor 1210 may include one or more processing units. Optionally, processor 1210 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 1210.

[0348] In this embodiment, the above device is a first device, and the first device is specifically used as a terminal for example:

[0349] The radio frequency unit 1201 is configured to measure the first signal and obtain a first measurement result;

[0350] The first measurement result includes at least one of the following:

[0351] Frequency offset information, where the frequency offset information is calculated based on a cyclic prefix CP and data of the first signal;

[0352] Measurement ambiguity related information, where the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range;

[0353] first Doppler related information, where the first Doppler related information is measured Doppler related information;

[0354] The second Doppler related information is Doppler related information for eliminating measurement ambiguity.

[0355] Optionally, the measurement ambiguity related information includes at least one of the following:

[0356] Indication of whether measurement ambiguity occurs;

[0357] The measurement range indication information corresponding to the second Doppler related information.

[0358] Optionally, the measurement range indication information corresponding to the second Doppler related information includes at least one of the following:

[0359] Information about a measurement range corresponding to the second Doppler related information;

[0360] an offset of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range;

[0361] An offset index of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range.

[0362] Optionally, the second Doppler related information is calculated based on the first Doppler related information and the frequency offset information; or

[0363] The second Doppler related information is calculated based on the first Doppler related information and the measurement ambiguity related information.

[0364] Optionally, the first Doppler related information includes at least one of the following:

[0365] first Doppler information and first speed information, wherein the first speed information is speed information associated with the first Doppler information;

[0366] or,

[0367] The second Doppler related information includes at least one of the following:

[0368] Second Doppler information and second speed information, where the second speed information is speed information associated with the second Doppler information.

[0369] Optionally, the frequency offset information includes:

[0370] Frequency offset information calculated based on all CPs and data of the first signal; or

[0371] The frequency offset information is calculated based on a portion of the CP of the first signal and data, where the portion of the CP is obtained by intercepting the CP of the first signal based on CP interception information.

[0372] Optionally, the CP interception information includes at least one of the following:

[0373] CP interception starting position, CP interception end position, CP interception length.

[0374] Optionally, the CP interception information is determined based on at least one of the following:

[0375] signal reflection path information associated with the first signal;

[0376] Perceive target area information;

[0377] Perceive target distance information.

[0378] Optionally, the signal reflection path information includes at least one of the following:

[0379] Number of signal reflection paths, delay information of signal reflection paths, and channel delay spread.

[0380] Optionally, the first Doppler related information is Doppler related information calculated based on data of the first signal; or

[0381] The first Doppler related information is Doppler related information measured within a Doppler observation range.

[0382] Optionally, after measuring the first signal and obtaining the first measurement result, the RF unit 1201 is further configured to:

[0383] A second measurement result is sent to a second device or a third device, where the second measurement result is the same measurement result as the first measurement result, or the second measurement result is a measurement result determined based on the first measurement result.

[0384] Optionally, before measuring the first signal and obtaining the first measurement result, the RF unit 1201 is further configured to perform at least one of the following:

[0385] receiving configuration information of the first signal sent by a second device or a third device;

[0386] receiving measurement instruction information sent by the second device or the third device;

[0387] Receive perception requirement information of the first signal sent by the second device or the third device.

[0388] Optionally, the configuration information includes at least one of the following:

[0389] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information, CP information.

[0390] Optionally, the measurement indication information includes at least one of the following:

[0391] CP measurement indication information, measurement quantity, measurement rules, and measurement result reporting information.

[0392] Optionally, the CP measurement indication information includes at least one of the following:

[0393] Indication of whether measurement is performed based on CP;

[0394] Resource information for CP measurement;

[0395] CP intercepts information.

[0396] Optionally, the measurement result reporting information includes at least one of the following:

[0397] Criteria information for reporting measurement results and triggering condition information for reporting measurement results.

[0398] Optionally, the perception demand information includes at least one of the following:

[0399] Perceived services, perceived target areas, perceived object types, and perceived quality of service (QoS).

[0400] Optionally, the first device includes at least one of the following:

[0401] Terminals and wireless access network equipment;

[0402] or,

[0403] The second device includes at least one of the following:

[0404] Terminals, wireless access network equipment, and core network equipment;

[0405] or,

[0406] The third device includes at least one of the following:

[0407] Terminals, wireless access network equipment, and core network equipment.

[0408] Optionally, the first measurement result further includes:

[0409] Performance indicators.

[0410] The above devices can improve the measurement performance of the device.

[0411] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned signal measurement method and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0412] The present application also provides a network-side 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 FIG3 . This network-side device embodiment corresponds to the aforementioned signal measurement method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this network-side device embodiment and can achieve the same technical effects.

[0413] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 13, network-side device 1300 includes an antenna 131, a radio frequency device 132, a baseband device 133, a processor 134, and a memory 135. Antenna 131 is connected to radio frequency device 132. In the uplink direction, radio frequency device 132 receives information via antenna 131 and sends the received information to baseband device 133 for processing. In the downlink direction, baseband device 133 processes the information to be transmitted and sends it to radio frequency device 132. Radio frequency device 132 processes the received information and then sends it through antenna 131.

[0414] The signal measurement method in the above embodiment may be implemented in the baseband device 133 , which includes a baseband processor.

[0415] The baseband device 133 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 13, one of the chips is, for example, a baseband processor, which is connected to the memory 135 through a bus interface to call the program in the memory 135 to execute the network device operations shown in the above method embodiment.

[0416] The network side device may further include a network interface 136 , which is, for example, a Common Public Radio Interface (CPRI).

[0417] Specifically, the network side device 1300 of the embodiment of the present application also includes: instructions or programs stored in the memory 135 and executable on the processor 134. The processor 134 calls the instructions or programs in the memory 135 to execute the methods of execution of each module shown in Figure 10 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0418] In this embodiment, the above device is a first device, and the first device is specifically used as a network-side device for illustration:

[0419] The radio frequency device 132 measures the first signal to obtain a first measurement result;

[0420] The first measurement result includes at least one of the following:

[0421] Frequency offset information, where the frequency offset information is calculated based on a cyclic prefix CP and data of the first signal;

[0422] Measurement ambiguity related information, where the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range;

[0423] first Doppler related information, where the first Doppler related information is measured Doppler related information;

[0424] The second Doppler related information is Doppler related information for eliminating measurement ambiguity.

[0425] Optionally, the measurement ambiguity related information includes at least one of the following:

[0426] Indication of whether measurement ambiguity occurs;

[0427] The measurement range indication information corresponding to the second Doppler related information.

[0428] Optionally, the measurement range indication information corresponding to the second Doppler related information includes at least one of the following:

[0429] Information about a measurement range corresponding to the second Doppler related information;

[0430] an offset of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range;

[0431] An offset index of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range.

[0432] Optionally, the second Doppler related information is calculated based on the first Doppler related information and the frequency offset information; or

[0433] The second Doppler related information is calculated based on the first Doppler related information and the measurement ambiguity related information.

[0434] Optionally, the first Doppler related information includes at least one of the following:

[0435] first Doppler information and first speed information, wherein the first speed information is speed information associated with the first Doppler information;

[0436] or,

[0437] The second Doppler related information includes at least one of the following:

[0438] Second Doppler information and second speed information, where the second speed information is speed information associated with the second Doppler information.

[0439] Optionally, the frequency offset information includes:

[0440] Frequency offset information calculated based on all CPs and data of the first signal; or

[0441] The frequency offset information is calculated based on a portion of the CP of the first signal and data, where the portion of the CP is obtained by intercepting the CP of the first signal based on CP interception information.

[0442] Optionally, the CP interception information includes at least one of the following:

[0443] CP interception starting position, CP interception end position, CP interception length.

[0444] Optionally, the CP interception information is determined based on at least one of the following:

[0445] signal reflection path information associated with the first signal;

[0446] Perceive target area information;

[0447] Perceive target distance information.

[0448] Optionally, the signal reflection path information includes at least one of the following:

[0449] Number of signal reflection paths, delay information of signal reflection paths, and channel delay spread.

[0450] Optionally, the first Doppler related information is Doppler related information calculated based on data of the first signal; or

[0451] The first Doppler related information is Doppler related information measured within a Doppler observation range.

[0452] Optionally, after measuring the first signal and obtaining the first measurement result, the radio frequency device 132 is further configured to:

[0453] A second measurement result is sent to a second device or a third device, where the second measurement result is the same measurement result as the first measurement result, or the second measurement result is a measurement result determined based on the first measurement result.

[0454] Optionally, before measuring the first signal and obtaining the first measurement result, the radio frequency device 132 is further configured to perform at least one of the following:

[0455] receiving configuration information of the first signal sent by a second device or a third device;

[0456] receiving measurement instruction information sent by the second device or the third device;

[0457] Receive perception requirement information of the first signal sent by the second device or the third device.

[0458] Optionally, the configuration information includes at least one of the following:

[0459] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information, CP information.

[0460] Optionally, the measurement indication information includes at least one of the following:

[0461] CP measurement indication information, measurement quantity, measurement rules, and measurement result reporting information.

[0462] Optionally, the CP measurement indication information includes at least one of the following:

[0463] Indication of whether measurement is performed based on CP;

[0464] Resource information for CP measurement;

[0465] CP intercepts information.

[0466] Optionally, the measurement result reporting information includes at least one of the following:

[0467] Criteria information for reporting measurement results and triggering condition information for reporting measurement results.

[0468] Optionally, the perception demand information includes at least one of the following:

[0469] Perceived services, perceived target areas, perceived object types, and perceived quality of service (QoS).

[0470] Optionally, the first device includes at least one of the following:

[0471] Terminals and wireless access network equipment;

[0472] or,

[0473] The second device includes at least one of the following:

[0474] Terminals, wireless access network equipment, and core network equipment;

[0475] or,

[0476] The third device includes at least one of the following:

[0477] Terminals, wireless access network equipment, and core network equipment.

[0478] Optionally, the first measurement result further includes:

[0479] Performance indicators.

[0480] The above-mentioned network-side device can improve the measurement performance of the device.

[0481] 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.

[0482] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned signal measurement method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0483] 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.

[0484] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned signal measurement method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0485] 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.

[0486] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned signal measurement method embodiment and can achieve the same technical effect. To avoid repetition, it is not repeated here.

[0487] 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.

[0488] 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.

[0489] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A signal measurement method, comprising: The first device measures the first signal to obtain a first measurement result; The first measurement result includes at least one of the following: Frequency offset information, where the frequency offset information is calculated based on the cyclic prefix CP and data of the first signal; Measurement ambiguity related information, wherein the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range; first Doppler related information, where the first Doppler related information is measured Doppler related information; The second Doppler related information is the Doppler related information for eliminating measurement ambiguity.

2. The method of claim 1, wherein: The measurement ambiguity related information includes at least one of the following: Indication information on whether measurement ambiguity occurs; The measurement range indication information corresponding to the second Doppler related information.

3. The method of claim 2, wherein: The measurement range indication information corresponding to the second Doppler related information includes at least one of the following: Information about a measurement range corresponding to the second Doppler related information; An offset of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range; An offset index of a measurement range corresponding to the second Doppler related information relative to a Doppler observation range.

4. The method according to any one of claims 1 to 3, wherein: The second Doppler related information is calculated based on the first Doppler related information and the frequency offset information; or The second Doppler related information is calculated based on the first Doppler related information and the measurement ambiguity related information.

5. The method according to any one of claims 1 to 4, wherein: The first Doppler related information includes at least one of the following: first Doppler information and first speed information, wherein the first speed information is speed information associated with the first Doppler information; or, The second Doppler related information includes at least one of the following: Second Doppler information and second speed information, wherein the second speed information is speed information associated with the second Doppler information.

6. The method according to any one of claims 1 to 5, wherein: The frequency deviation information includes: Frequency offset information calculated based on all CPs and data of the first signal; or, The frequency deviation information is obtained based on partial CP and data calculation of the first signal, where the partial CP is obtained by intercepting the CP of the first signal based on CP interception information.

7. The method of claim 6, wherein: The CP interception information includes at least one of the following: CP interception starting position, CP interception end position, CP interception length.

8. The method according to claim 6 or 7, wherein: The CP interception information is determined based on at least one of the following: signal reflection path information associated with the first signal; Perceive target area information; Perceive target distance information.

9. The method of claim 8, wherein: The signal reflection path information includes at least one of the following: The number of signal reflection paths, the delay information of the signal reflection paths, and the channel delay spread.

10. The method according to any one of claims 1 to 9, wherein: The first Doppler related information is Doppler related information calculated based on data of the first signal; or The first Doppler related information is the Doppler related information measured within the Doppler observation range.

11. The method according to any one of claims 1 to 10, wherein: After the first device measures the first signal and obtains the first measurement result, the method further includes: The first device sends a second measurement result to the second device or the third device, where the second measurement result is the same measurement result as the first measurement result, or the second measurement result is a measurement result determined based on the first measurement result.

12. The method according to any one of claims 1 to 11, wherein: Before the first device measures the first signal to obtain the first measurement result, the method further includes at least one of the following: The first device receives configuration information of the first signal sent by the second device or the third device; The first device receives measurement indication information sent by the second device or the third device; The first device receives perception requirement information of the first signal sent by the second device or the third device.

13. The method of claim 12, wherein: The configuration information includes at least one of the following: Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information, CP information.

14. The method according to any one of claims 12 to 13, wherein: The measurement indication information includes at least one of the following: CP measurement indication information, measurement quantity, measurement rules, and measurement result reporting information.

15. The method of claim 14, wherein: The CP measurement indication information includes at least one of the following: Indication information of whether to perform measurement based on CP; Resource information for CP measurement; The CP intercepts information.

16. The method according to claim 14 or 15, wherein: The measurement result reporting information includes at least one of the following: Criteria information for reporting measurement results and triggering condition information for reporting measurement results.

17. The method according to any one of claims 12 to 16, wherein: The perceived demand information includes at least one of the following: Perceive business, perceive target area, perceive object type, perceive service quality QoS.

18. The method according to any one of claims 11 to 17, wherein: The first device includes at least one of the following: Terminals and wireless access network equipment; or, The second device includes at least one of the following: Terminals, wireless access network equipment, core network equipment; or, The third device includes at least one of the following: Terminals, wireless access network equipment, and core network equipment.

19. The method according to any one of claims 1 to 18, wherein: The first measurement result also includes: Performance indicators.

20. A signal measuring device, comprising: A measuring module, used to measure the first signal to obtain a first measurement result; The first measurement result includes at least one of the following: Frequency offset information, where the frequency offset information is calculated based on the cyclic prefix CP and data of the first signal; Measurement ambiguity related information, wherein the measurement ambiguity related information is information related to the measurement ambiguity determined based on the frequency offset information and the unambiguous measurement range; first Doppler related information, where the first Doppler related information is measured Doppler related information; The second Doppler related information is the Doppler related information for eliminating measurement ambiguity.

21. A device comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal measurement method according to any one of claims 1 to 19 are implemented.

22. A readable storage medium storing a program or an instruction, wherein the program or the instruction, when executed by a processor, implements the steps of the signal measurement method according to any one of claims 1 to 19.

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