Parameter determination method, information sending method, device and equipment

Abstract

The invention discloses a parameter determination method, an information sending method, devices and equipment, and belongs to the technical field of communication, and the parameter determination method in the embodiment of the invention comprises the steps that first equipment determines a first parameter; wherein the first parameter is used for acquiring a time delay spectrum of M symbols in first data, the first data is data corresponding to a sensing signal, the M symbols are M symbols occupied by the sensing signal, and M is an integer greater than 1.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a parameter determination method, an information sending method, a device and equipment. BACKGROUND

[0002] In a sensing scenario, a transmitter and a receiver of a sensing signal generate a local oscillator signal and a clock signal in a respective device for transmission and reception of the sensing signal. There can be a difference between the clock signals of the transceiver, and the difference in the clock signals leads to timing deviation, and the timing deviation leads to timing drift, which is caused by the difference between the clock periods of the receiver clock and the transmitter clock of the sensing signal, and the timing drift on each symbol changes with time. The timing drift causes a time delay spectrum shift between each symbol, thereby greatly affecting the final sensing performance. In the related art, there is no clear determination method of time delay spectrum related information, thereby limiting the sensing performance. SUMMARY

[0003] Embodiments of the present application provide a parameter determination method, an information sending method, a device and equipment, which can solve the problem that the sensing performance is limited without a clear determination method of time delay spectrum related information.

[0004] In a first aspect, a parameter determination method is provided, comprising:

[0005] A first device determines a first parameter;

[0006] The first parameter is used to obtain a time delay spectrum of M symbols in first data, the first data is data corresponding to a sensing signal, the M symbols are M symbols occupied by the sensing signal, and M is an integer greater than 1.

[0007] In a second aspect, an information sending method is provided, comprising:

[0008] A second device sends target information to a first device, the target information comprising at least one of the following: first information and first indication information;

[0009] The first information is used to determine a first parameter;

[0010] The first indication information is used to indicate at least one of the following:

[0011] The first parameter is determined by the first device;

[0012] An oversampling inverse discrete Fourier transform (IDFT) is used in the process of processing the first data;

[0013] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0014] Thirdly, a parameter determination device is provided, comprising:

[0015] The processing module is used to determine the first parameter;

[0016] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0017] Fourthly, an information transmission device is provided, comprising:

[0018] The sending module is configured to send target information to a first device, the target information including at least one of the following: first information and first indication information;

[0019] The first information is used to determine the first parameter;

[0020] The first indication information is used to indicate at least one of the following:

[0021] The first parameter is determined by the first device;

[0022] Oversampling IDFT is used in the processing of the first data;

[0023] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0024] Fifthly, a parameter determination apparatus is provided, the apparatus being configured to perform the steps of the parameter determination method as provided in the embodiments of this application.

[0025] In a sixth aspect, an information sending apparatus is provided, the apparatus being configured to perform the steps of the information sending method as provided in the embodiments of this application.

[0026] In a seventh aspect, an apparatus is provided, the apparatus including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the parameter determination method provided in the embodiments of this application.

[0027] Eighthly, a device is provided, including a processor and a communication interface, wherein the processor is used to determine a first parameter; wherein the first parameter is used to acquire a time delay spectrum of M symbols in first data, the first data being data corresponding to a sensing signal, and the M symbols being the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0028] In a ninth aspect, an apparatus is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the information transmission method provided in the embodiments of this application.

[0029] In a tenth aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is used to send target information to a first device, the target information including at least one of the following: first information and first indication information; the first information is used to determine a first parameter; the first indication information is used to indicate at least one of the following: the first device determines the first parameter; oversampling IDFT is used in the processing of first data; wherein the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is data corresponding to a sensing signal, the M symbols are the M symbols occupied by the sensing signal, and M is an integer greater than 1.

[0030] Eleventhly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the parameter determination method provided in the embodiments of this application, or implement the steps of the information transmission method provided in the embodiments of this application.

[0031] In a twelfth aspect, a wireless communication system is provided, comprising: a first device and a second device, wherein the first device is configured to perform the steps of the parameter determination method provided in the embodiments of this application, and the second device is configured to perform the steps of the information transmission method provided in the embodiments of this application.

[0032] In a thirteenth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the parameter determination method provided in the embodiments of this application, or to implement the information transmission method provided in the embodiments of this application.

[0033] In a fourteenth 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 parameter determination method provided in the embodiments of this application, or the computer program / program product is executed by at least one processor to implement the steps of the information transmission method provided in the embodiments of this application.

[0034] In this embodiment, the first device determines a first parameter; wherein the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data being the data corresponding to the sensing signal, and the M symbols being the M symbols occupied by the sensing signal, where M is an integer greater than 1. Since the first parameter is used to obtain the time delay spectrum of the M symbols in the first data, relevant information about the time delay spectrum can be obtained. Furthermore, since the first parameter is used to obtain the time delay spectrum of the M symbols in the first data, this supports obtaining the time delay spectrum of the M symbols in the first data, which is beneficial for improving sensing performance. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a system provided in an embodiment of this application;

[0036] Figure 2 This is a schematic diagram of a sensing and measurement scenario provided in an embodiment of this application;

[0037] Figure 3 This is a schematic diagram of a sampling clock deviation provided in an embodiment of this application;

[0038] Figure 4 This is a schematic diagram of a timing drift value provided in an embodiment of this application;

[0039] Figure 5 This is a schematic diagram of a time delay-Doppler spectrum under the influence of timing drift, provided in an embodiment of this application;

[0040] Figure 6 This is a flowchart of a parameter determination method provided in an embodiment of this application;

[0041] Figure 7 This is a flowchart of an information sending method provided in an embodiment of this application;

[0042] Figure 8 This is a structural diagram of a parameter determination device provided in an embodiment of this application;

[0043] Figure 9 This is a structural diagram of an information transmission device provided in an embodiment of this application;

[0044] Figure 10 This is a structural diagram of a communication device provided in an embodiment of this application;

[0045] Figure 11 This is a structural diagram of a device provided in an embodiment of this application;

[0046] Figure 12 This is a structural diagram of another device provided in an embodiment of this application. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0048] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0050] It is worth noting that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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.

[0051] The terms "system" and "network" used in the embodiments of this application are often used interchangeably, and the described technologies can be used with respect to the systems and radio technologies mentioned above, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation 6G communication system.

[0052] Figure 1 This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12.

[0053] Terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application.

[0054] Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, radio access network unit, or satellite. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc. In this context, a base station may be referred to as a Node B (NB), Evolved Node B (eNB), 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, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to any specific technical terminology. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.

[0055] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0056] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0057] In some embodiments, future Beyond 5G (B5G) and 6G wireless communication systems are expected to provide a variety of high-precision sensing services, such as indoor positioning for robot navigation, Wi-Fi sensing for smart homes, and radar sensing for autonomous vehicles. Sensing and communication systems are typically designed separately and occupy different frequency bands. Integrated Sensing and Communication (ISAC) enables sensing and communication systems to share the same frequency band and hardware, improving frequency efficiency and reducing hardware costs. ISAC will become a key technology for future wireless communication systems to support many important application scenarios. Typical applications of ISAC include: navigation and obstacle avoidance for autonomous vehicles, Wi-Fi-based indoor positioning and activity recognition, communication and sensing for unmanned aerial vehicles, extended reality (XR), and radar and communication integration. Each application has different requirements, limitations, and regulatory issues. ISAC has already attracted significant research interest and attention from academia and industry.

[0058] JSAC achieves integrated, low-cost implementation of both communication and sensing functions through shared hardware and software-defined features. Its main characteristics include: a unified and simplified architecture; reconfigurable and scalable functionality; and improved efficiency and reduced costs. The advantages of integrated communication and sensing are threefold: reduced equipment costs and smaller size; improved spectrum utilization; and enhanced system performance.

[0059] Currently, the typical scenarios of integrated communication and sensing that can be realized by upgrading the technology based on the 5G communication system architecture are shown in Table 1 below.

[0060] Table 1:

[0061]

[0062] In some embodiments, depending on the different sensing signal transmitting and receiving nodes, the methods may include, but are not limited to, those mentioned above. Figure 2 The six sensing links shown are... It should be noted that... Figure 2Each sensing link in the example is illustrated with one sending node and one receiving node. In a real system, different sensing links can be selected according to different sensing requirements. Each sensing link can have one or more sending and receiving nodes, and a real sensing system can include multiple different sensing links. Figure 2 The perception targets in this example are people and vehicles, and it is assumed that neither people nor vehicles carry or have signal receiving / transmitting equipment installed. In reality, the perception targets will be much richer.

[0063] Sensing Link 1: Base station self-transmitting and self-receiving sensing. In this method, the base station sends sensing signals and obtains the sensing results by receiving the echoes of these signals;

[0064] Sensing Link 2: Inter-base station air interface sensing. In this mode, base station 2 receives sensing signals sent by base station 1 and obtains the sensing results.

[0065] Sensing Link 3: Uplink air interface sensing. In this mode, the base station receives sensing signals sent by the terminal and obtains the sensing results.

[0066] Sensing Link 4: Downlink Air Interface Sensing. In this mode, the terminal receives sensing signals sent by the base station and obtains the sensing results.

[0067] Sensing Link 5: Terminal Self-Sending and Receiving Sensing. In this mode, the terminal sends a sensing signal and obtains the sensing result by receiving the echo of the sensing signal.

[0068] Sensing Link 6: Sidelink sensing between terminals. For example, terminal 2 receives a sensing signal sent by terminal 1 and obtains a sensing result, or terminal 1 receives a sensing signal sent by terminal 2 and obtains a sensing result.

[0069] It should be noted that, Figure 2 Each sensing method is illustrated with a sensing signal transmitter and a sensing signal receiver as an example. In actual systems, one or more different sensing methods can be selected according to different sensing use cases and sensing requirements, and each sensing method can have one or more transmitters and receivers. Figure 2 The perception targets in this example are people and vehicles, and it is assumed that neither people nor vehicles carry or have signal receiving / transmitting equipment installed. In reality, the perception targets will be much richer.

[0070] exist Figure 2Of the six basic sensing methods shown, in four methods—inter-base station air interface sensing, uplink air interface sensing, downlink air interface sensing, and inter-terminal sidelink sensing—the transmitter and receiver of the sensing signal belong to different devices; that is, these four sensing methods are dual-site sensing. However, in two sensing methods—base station self-transmission and self-reception sensing and terminal self-transmission and self-reception sensing—the transmitter and receiver of the sensing signal belong to the same device; that is, these two sensing methods are single-site sensing.

[0071] Dual-station sensing does not require the equipment to have full-duplex capability, and its signal propagation characteristics are essentially the same as those in existing communication systems. Therefore, dual-station sensing can fully utilize the hardware and signal design of existing communication systems, thus enabling truly integrated communication and sensing design at a lower cost. Furthermore, dual-station sensing, especially uplink or downlink air interface sensing, allows for flexible selection of the terminal equipment responsible for transmitting or receiving sensing signals. If a terminal equipment closer to the sensing target is selected, the signal propagation distance from the target to the terminal is shorter, resulting in lower signal propagation path loss and ultimately a gain in sensing signal power. Based on these advantages, dual-station sensing has remained a hot topic in integrated sensing research.

[0072] However, a significant challenge in bi-station sensing is the time-frequency asynchrony between the transmitter and receiver of the sensing signal. The transmitter and receiver each use their respective frequency sources to generate local oscillator and clock signals for transmitting and receiving the sensing signal. Differences in the local oscillator frequencies between the transceivers cause carrier frequency deviations, while differences in the clock signals cause timing deviations. The carrier frequency deviation results in an overall shift in the Doppler spectrum of the sensing signal, with the shift value being the carrier frequency deviation itself. The impact of timing deviations is more complex. For example... Figure 3 As shown, the timing deviation includes two parts: the timing start point deviation (τ in the figure) strat The timing drift (shown in the figure) and timing offset (Δτ1, Δτ2, Δτ3, etc.) are also present. Timing start point deviation is mainly caused by the overall deviation between the receiver clock and the transmitter clock of the sensed signal, resulting in an overall shift in the time delay spectrum. Timing drift, on the other hand, is caused by the difference in clock periods between the receiver clock and the transmitter clock of the sensed signal; the timing drift changes at each symbol as time progresses. Furthermore, timing drift can also jump when timing adjustments occur in the communication system.

[0073] Figure 4This diagram illustrates timing drift in a real-world measurement. In the time domain, there is a sensing signal with one symbol every 2 ms, totaling 100 symbols over a time span of 200 ms. The red arrows in the diagram indicate timing adjustments. According to the rules of the NR system, timing adjustments typically involve a jump in the time length corresponding to a time domain sampling point. Between any two timing adjustments, continuous timing drift changes occur.

[0074] Timing drift causes shifts and phase deviations in the time delay spectra of various symbols. Taking the localization application of passive sensing targets as an example, the shifts and phase deviations in the time delay spectrum will cause dispersion of the time delay-Doppler spectrum. Figure 4 The timing drift shown causes the time delay spectrum and time delay-Doppler spectrum as follows: Figure 5 As shown. Figure 5 In (a), the horizontal axis represents the symbol index and the vertical axis represents the subcarrier index. Figure 5 As shown in (a), the time delay spectra of each symbol are shifted. When the shift is less than an integer number of time delay units, a fence loss occurs, causing the sensed signal power to fall into two adjacent time delay units. Combined with the phase difference caused by timing drift, the final time delay-Doppler spectrum is as follows: Figure 5 As shown in (b) of the figure. The circled area in the figure indicates the position of the perceived target in the time-delay-Doppler spectrum. The time-delay-Doppler spectrum is severely diffused, making it impossible to detect the perceived target correctly.

[0075] The following description, in conjunction with the accompanying drawings, details a parameter determination method, information transmission method, apparatus, and device provided in this application through some embodiments and application scenarios.

[0076] Please see Figure 6 , Figure 6 This is a flowchart of a parameter determination method provided in an embodiment of this application, such as... Figure 6 As shown, it includes the following steps:

[0077] Step 601: The first device determines the first parameter;

[0078] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0079] The first device mentioned above can be a terminal or a network-side device.

[0080] The aforementioned sensing signal may be a sensing signal received by the first device from the second or third device, or a sensing signal sent by the first device to the second or third device. The second device may be a network-side device or a terminal, and the third device may be a device other than the first and second devices, specifically a terminal or a network-side device.

[0081] The first data mentioned above is the data corresponding to the sensing signal. It can be obtained by the first device after receiving the sensing signal and performing steps such as down-conversion, filtering, analog-to-digital (AD) sampling, fast Fourier transform (FFT) operation, and channel estimation.

[0082] The above M symbols can be M OFDM symbols, and the symbols in the embodiments of this application can all refer to OFDM symbols.

[0083] The aforementioned first parameter is used to obtain the time delay spectrum of M symbols in the first data. This can be understood as the first parameter being used in the process of obtaining the time delay spectrum of the M symbols in the first data. For example, during the processing of sensing signals, the first device obtains the time delay spectrum of the M symbols in the first data based on the aforementioned first parameter. For instance, the first device transforms the frequency domain signal on the subcarrier occupied by the sensing signal on each symbol from the frequency domain to the time delay domain based on the aforementioned first parameter, thus obtaining the time delay spectrum of the M symbols in the first data.

[0084] In some implementations, after the first device determines the first parameter, it sends the first parameter to other devices, such as a second device, and the second device determines the time delay spectrum of M symbols in the first data based on the first parameter.

[0085] The aforementioned first data includes M symbols, or it can be said that the aforementioned first data includes data corresponding to M symbols. The time delay spectrum of the M symbols in the aforementioned first data can be understood as the time delay spectrum of these M symbols or the time delay spectrum of the data corresponding to these M symbols.

[0086] The first device may determine the first parameter by deciding on the first parameter itself, or it may determine the first parameter based on the received information.

[0087] In this embodiment, since the first parameter is used to obtain the time delay spectrum of M symbols in the first data, relevant information about the time delay spectrum can be obtained. Furthermore, since the first parameter is used to obtain the time delay spectrum of M symbols in the first data, it supports obtaining the time delay spectrum of M symbols in the first data, which is beneficial for improving sensing performance. Additionally, since it supports obtaining the time delay spectrum of M symbols in the first data, it is beneficial for aligning the time delay spectrum of the M symbols in the first data to solve the problem of time delay spectrum shift, further improving sensing performance. Furthermore, it can also support phase compensation of the data after the time delay spectrum is aligned to solve the problem of phase deviation, further improving sensing performance.

[0088] As an optional implementation, the method further includes:

[0089] The first device receives first information, which is used to determine the first parameter.

[0090] The first information mentioned above can be the first information received by the first device from the second device, and the second device can be a network-side device, such as a base station or a sensing function network element.

[0091] In this application embodiment, the sensing function network element can also be called a sensing network element or sensing network function. It can be located on the RAN side or the core network side. It refers to a network node in the core network and / 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. It can be an upgrade based on AMF or LMF in the 5G network, or it can be other network nodes or newly defined network nodes. Specifically, the functional characteristics of the sensing function network element can include at least one of the following:

[0092] Interact with wireless signal transmitting equipment and / or wireless signal measuring equipment (including target terminal or the serving base station of the target terminal or the base station associated with the target area) to exchange target information, wherein the target information includes sensing processing requests, sensing capabilities, sensing auxiliary data, sensing measurement type, sensing resource configuration information, etc., in order to obtain the value of the target sensing result or sensing measurement (uplink measurement or downlink measurement) sent by the wireless signal measuring equipment, wherein the wireless signal can also be referred to as the sensing signal;

[0093] The sensing method used is determined based on factors such as the type of sensing service, the information of sensing service consumers, the required Quality of Service (QoS) requirements, the sensing capabilities of the wireless signal transmitting equipment, and the sensing capabilities of the wireless signal measuring equipment. The sensing method may include: base station A transmitting and base station B receiving, or base station transmitting and terminal receiving, or base station A transmitting and receiving, or terminal transmitting and base station receiving, or terminal transmitting and receiving, or terminal A transmitting and terminal B receiving, etc.

[0094] The sensing equipment serving the sensing service is determined based on factors such as the type of sensing service, information of the sensing service consumer, required sensing QoS requirements, sensing capabilities of wireless signal transmitting equipment, and sensing capabilities of wireless signal measuring equipment. The sensing equipment includes wireless signal transmitting equipment and / or wireless signal measuring equipment.

[0095] The overall coordination and scheduling of resources required for managing sensing services, such as the corresponding configuration of sensing resources for base stations and / or terminals;

[0096] The values ​​of the sensed measurements are processed or calculated to obtain the sensing results. Further, the sensing results are verified, and the sensing accuracy is estimated.

[0097] The first information mentioned above is used to determine the first parameter. This first information may include the first parameter, or the first information may explicitly or implicitly indicate the first parameter, such as the first information being an index of the first parameter.

[0098] In the above embodiments, since the first parameter is determined by receiving the first information, the flexibility of determining the first parameter can be improved, so as to be applicable to more scenarios and services.

[0099] As an optional implementation, the first parameter is the number of IDFT points P, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing an IDFT on the first data with P points, where P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

[0100] The IDFT mentioned above can be either an oversampled IDFT or a zero-padding IDFT.

[0101] In this application embodiment, one implementation of IDFT is Inverse Fast Fourier Transform (IFFT).

[0102] In this embodiment, the time delay spectrum obtained by performing an IDFT on the first data at point P can be realized. This facilitates the alignment of the time delay spectra of the M symbols in the first data, which helps to eliminate the time delay spectrum shift between symbols and achieve time delay spectrum alignment.

[0103] In some implementations, P equals α × N, where α is an integer obtained based on a first table, the first table including at least one index and at least one value of α;

[0104] Alternatively, P can be an integer obtained based on a second table, which includes at least one index and at least one value of P.

[0105] In some implementations, the first table is configured on the network side or agreed upon by the protocol.

[0106] In some implementations, the second table is configured on the network side or agreed upon by the protocol.

[0107] For example, the first device may receive at least one of the first table and the second table via Radio Resource Control (RRC) signaling or Non-access stratum (NAS) signaling.

[0108] For example: the first information mentioned above includes index values ​​in the first table. If the first information includes at least one index value in the first table, the first device determines the corresponding IDFT points from the first table based on the obtained index value. For example, the first device can directly determine the corresponding α value based on the index value in the first table in the first information.

[0109] Alternatively, the first information may include index values ​​in the second table. If the first information includes at least one index value in the second table, the first device may determine the corresponding IDFT points from the second table based on the obtained index values. For example, the first device may directly determine the corresponding P value based on the index values ​​in the second table in the first information.

[0110] In the case where P equals α × N, IDFT can be performed according to a specified multiple, that is, according to a certain multiple α, combined with the number of subcarriers N, the number of IDFT points in the first process is P = αN. When using this method, the above-mentioned first table (which can be called the first mapping table) is preset, which contains at least one available α value and its corresponding index. For example, the first table is shown in Table 2 below.

[0111] Table 2:

[0112] Index Alpha value 0 1 1 2 2 4 3 8 4 16 5 32 … …

[0113] In the above example, P equals α × N, and the resulting improvement in apparent resolution performance is an integer multiple. For instance, if the latency resolution using a conventional IDFT is Δτ, then the apparent resolution after using an oversampled IDFT (or zero-padded IDFT) is Δτ / α. Furthermore, after the alignment process, the data obtained from the alignment process can be downsampled, thereby reducing the amount of data processed subsequently.

[0114] It should be noted that in the first table, an α value of 1 indicates that neither the first nor the second processing is used, or that oversampling IDFT is not used in the first processing (that is, a conventional IFFT with P=N is used). The first processing aligns the time delay spectra of the M symbols in the first data, and the second processing performs phase compensation on the time delay spectra of at least some of the M symbols in the second data obtained from the first processing. For example, when the sensing signal bandwidth is large (e.g., when the sensing signal is in the millimeter-wave band), the corresponding time delay resolution is high. In this case, an unsampling IFFT can be used in the first processing, followed by the second processing.

[0115] When P is an integer obtained from the second table, a specified number of IDFT points can be obtained, that is, P can be obtained directly according to the specified number of IDFT points. In this case, a second table (also called a second mapping table) is pre-defined, which contains at least one available P value and its corresponding index. For example, the second table is shown in Table 3 below.

[0116] Table 3:

[0117] Index P value 0 128 1 256 2 512 3 1024 4 2048 5 4096 6 8192 … …

[0118] When P is an integer obtained from the second table, it is possible to determine the IDFT point number so that the final IDFT point number is a power of 2 or a power of 4, thereby accelerating the operation.

[0119] In some implementations, the first table is the table indicated by the first information in the first table group, or the first table is the table determined by the first device in the first table group;

[0120] Each table in the first table group includes at least one index and at least one value of α.

[0121] In some implementations, the first table group is configured on the network side or agreed upon by the protocol.

[0122] The table determined by the first device in the first table group may be determined by the first device based on the device's capabilities, or the first device may determine the first table based on the parameters of the sensed signal in the first table group.

[0123] In this context, the α value corresponding to the first table group can be one-to-one with the index value within each table (or sub-table), and the same index value can correspond to one or more α values ​​across different tables. For example, the first table group can be the tables shown in Tables 4-1 and 4-2.

[0124] Table 4-1:

[0125]

[0126]

[0127] Table 4-2:

[0128] Index Alpha value 0 1 1 8 2 16 3 32 4 64 5 128 … …

[0129] The first table mentioned above is the table indicated by the first information in the first table group. It may be an index or number of the first table included in the first information.

[0130] The first table mentioned above is the table that the first device determines in the first table group based on its device capabilities. It can be the first table that the first device selects to match based on its own device capabilities. For example, the device capabilities of the first device are divided into several levels, and a device of a certain capability level corresponds to one or more tables in the first table group. Specifically, in the examples of Tables 4-1 and 4-2, devices with stronger capabilities correspond to the table shown in Table 4-2, and devices with weaker capabilities correspond to the table shown in Table 4-1.

[0131] In the above embodiments, since the first table is a table in the first table group, the range of values ​​for the index indicated by the first information can be reduced, thereby reducing the index overhead in the first information.

[0132] In some implementations, the above-mentioned device capabilities include at least one of the following:

[0133] Floating point operations per second (FLOPS);

[0134] Maximum supported IDFT points;

[0135] IDFT point information supported at the maximum IDFT point count.

[0136] The IDFT point information supported at the maximum IDFT point count is used to indicate one item:

[0137] Supports any number of IDFT points below the maximum IDFT point count;

[0138] Supports IDFT points that are at least one of the powers of 2 and 4 below the maximum IDFT point number;

[0139] Supports any number of IDFT points within the first range of integers below the maximum IDFT point value;

[0140] Supports IDFT points of at least one of powers of 2 and powers of 4 within a second range of integers below the maximum IDFT point number.

[0141] The information regarding the number of IDFT points supported at the maximum IDFT point count mentioned above can be understood as some limitations on the number of IDFT points that can be supported.

[0142] The above-mentioned support for any number of IDFT points below the maximum IDFT point count indicates that the first device is capable of supporting any number of IDFT points below the maximum IDFT point count.

[0143] It should be noted that for IDFT points that are not integer powers of 2 or 4, even if the first device can support them, it cannot be accelerated by Fast Fourier Transform. Therefore, only devices with strong computing power can complete the corresponding calculations within the allowed time.

[0144] The IDFT points that support at least one of the integer powers of 2 and 4 below the maximum IDFT points can be IDFT points that only support integer powers of 2 and / or 4 below the maximum IDFT points, thus enabling acceleration via Fast Fourier Transform.

[0145] The first and second ranges mentioned above can be ranges agreed upon by the protocol or configured by the network-side device. For example, if the maximum number of IDFT points is taken as the first value, then there exists a second integer value that is less than or equal to the first value. The first device can support IDFTs with any positive integer number of points less than or equal to the second value, as well as IDFTs with a number of points greater than or equal to the second value and less than or equal to an integer power of 2 or 4 within the range of the first value.

[0146] In some implementations, when the first device sends information about its computational capabilities, the information may include relevant information about the second range, such as the second value.

[0147] The above-mentioned device capabilities can make the determined IDFT point count P more closely matched with the first device, thereby improving the computational performance of the first device.

[0148] In some implementations, the second table is the table indicated by the first information in the second table group, or the second table is the table determined by the first device in the second table group;

[0149] Each table in the second table group includes at least one index and at least one value of P.

[0150] The table determined by the first device in the second table group may be a second table determined by the first device in the second table group based on the device's capabilities, or the second table may be a second table determined by the first device in the second table group based on the parameters of the sensing signal.

[0151] In some implementations, the second table group is configured on the network side or agreed upon by the protocol.

[0152] In this context, the P value corresponding to the second table group can be one-to-one with the index value within each table (or sub-table), and the same index value can correspond to one or more P values ​​across different tables. For example, the second table group can be the tables shown in Tables 5-1 and 5-2.

[0153] Table 5-1:

[0154] Index P value 0 32 1 64 2 128 3 256 4 512 5 1024 6 2048 … …

[0155] Table 5-2:

[0156]

[0157]

[0158] The selection of the second table is explained in the corresponding instructions for the selection of the first table, and will not be repeated here.

[0159] In the above embodiments, since the second table is a table in the second table group, the range of values ​​for the index indicated by the first information can be reduced, thereby reducing the index overhead in the first information.

[0160] As an optional implementation, the method further includes:

[0161] The first device sends a second message, which is used to indicate the device capabilities related to the calculation of the first device.

[0162] The capabilities of the aforementioned equipment are described in the corresponding descriptions of the above embodiments, and will not be repeated here.

[0163] Sending the second information as described above can mean sending the second information to a second device.

[0164] In this embodiment, since the second information is used to indicate the device capabilities related to the computation of the first device, the device that receives the second information can configure matching first parameters for the terminal, thereby improving the perception performance of the first device.

[0165] As an optional implementation, the first device determines the first parameter by including:

[0166] The first device determines the first parameter based on at least one of the following: device capabilities related to the first device's computation, perceived quality of service (QoS) information, and perceived signal configuration.

[0167] The device capabilities related to the operation of the first device are described in the corresponding description of the above-described embodiments, and will not be repeated here.

[0168] Among them, at least one of the aforementioned perceived QoS information and perceived signal configuration may be pre-acquired by the first device, or configured by the first device.

[0169] In some embodiments, the above method further includes:

[0170] The first device receives at least one of the sensed QoS information and sensed signal configuration.

[0171] The first device receiving at least one of the sensed QoS information and sensed signal configuration can be the first device receiving at least one of the sensed QoS information and sensed signal configuration sent by the second device.

[0172] The aforementioned perceived QoS information may include at least one of the following:

[0173] Sensing resolution includes at least one of the following: ranging (or time delay) resolution, velocity (or Doppler) resolution, angle (azimuth, pitch) resolution, imaging resolution, acceleration (X / Y / Z directions) resolution, and angular velocity (around X / Y / Z axes) resolution.

[0174] Sensing accuracy (error) includes at least one of the following: ranging (or time delay) accuracy, velocity (or Doppler) accuracy, angle (azimuth, pitch) accuracy, acceleration (X / Y / Z directions) accuracy, and angular velocity (around X / Y / Z axes) accuracy.

[0175] The sensing range includes at least one of the following: distance (or time delay) measurement range, velocity (or Doppler) measurement range, acceleration (X / Y / Z directions) measurement range, angular velocity (around X / Y / Z axes) measurement range, and imaging range;

[0176] Sensing latency, such as the time interval from the transmission of a sensing signal to the acquisition of a sensing result, or the time interval from the initiation of a sensing demand to the acquisition of a sensing result;

[0177] The perception update rate, such as the time interval between two consecutive perception operations and the acquisition of perception results;

[0178] Detection probability, such as the probability of correctly detecting an object given its presence;

[0179] False alarm probability, such as the probability of falsely detecting a target when the target does not exist;

[0180] Number of targets;

[0181] Coverage range, such as the spatial range of the sensing target / imaging area that meets at least one of the sensing performance requirements.

[0182] The above-mentioned sensing signal configuration may include information such as sensing signal bandwidth and the number of subcarriers occupied by the sensing signal, and may specifically include at least one of the following:

[0183] Waveform types, such as OFDM, SC-FDMA, Orthogonal Time-Frequency-Space (OTFS), Frequency Modulated Continuous Wave (FMCW), pulse signals, etc.

[0184] Subcarrier spacing, for example, 30 kHz in an OFDM system;

[0185] The guard interval can be the time interval between the end of signal transmission and the moment when the latest echo signal of that signal is received; this parameter is proportional to the maximum sensing distance; for example, it can be expressed as a 2d... max / c is calculated to obtain d max This refers to the maximum sensing distance (related to sensing requirements), for example, for spontaneously generated and received sensing signals, d max It represents the maximum distance from the sensing signal transceiver point to the signal transmitter point; in some cases, the OFDM signal cyclic prefix CP can serve as the minimum guard interval.

[0186] Bandwidth, which is inversely proportional to distance resolution, can be obtained by c / (2Δd), where Δd is the distance resolution (related to perception requirements); and c is the speed of light.

[0187] Burst duration, an inversely proportional parameter to rate resolution (related to sensing requirements), represents the time span of the sensed signal and is primarily used to calculate Doppler frequency offset; this parameter can be obtained by c / (2f cΔv) is calculated; where Δv is the velocity resolution; f c It is the carrier frequency of the sensed signal;

[0188] The time-domain interval, this parameter can be obtained by c / (2f c v range ) is calculated; where, v range It is the maximum speed minus the minimum speed (related to sensing requirements); this parameter is the time interval between two adjacent sensing signals;

[0189] Transmitted signal power, for example, taking a value every 2dBm from -20dBm to 23dBm;

[0190] Signal format, such as Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), Positioning Reference Signal (PRS), or other predefined signals, as well as related sequence format information;

[0191] Time resources, such as the time slot index or symbol index of the time slot where the sensing signal is located; among them, time resources are divided into two types: one is one-time time resources, such as one symbol sending an omnidirectional sensing signal; the other is non-one-time time resources, such as multiple sets of periodic time resources or discontinuous time resources (which may include start and end times), each set of periodic time resources sends a sensing signal in the same direction, and the beam direction on different sets of periodic time resources is different;

[0192] Frequency resources include the center frequency of the sensed signal, bandwidth, resource block (RB) or subcarrier, reference point (Point A), starting bandwidth location, etc.

[0193] In the above embodiments, since the first device determines the first parameter based on at least one of the device capabilities related to the first device operation, the perceived QoS information, and the perceived signal configuration, the first parameter can be matched with at least one of the perceived QoS information and the perceived signal configuration.

[0194] As an optional implementation, the method further includes:

[0195] The first device receives first indication information, which indicates at least one of the following:

[0196] The first parameter is determined by the first device;

[0197] Oversampling IDFT is used in the processing of the first data.

[0198] The aforementioned receiving of the first instruction information may be receiving the first instruction information sent by the second device.

[0199] The use of oversampling IDFT in the above-mentioned process of processing the first data can be understood as the first indication information instructing the first device to process the first data in the manner provided in the embodiments of this application.

[0200] In this embodiment, the first parameter can be determined based on the first indication information, and the first data can be processed to achieve flexible processing of the first data.

[0201] In some implementations, the first instruction information may not be received. For example, the first device may determine the first parameter by default, or oversampling IDFT may be used by default during the processing of the first data.

[0202] As an optional implementation, the method further includes:

[0203] The first device sends third information, which includes at least one of the following:

[0204] Sensing and measuring quantity;

[0205] The second indication information is used to indicate that oversampling IDFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0206] The third indication information is used to indicate the number of points of IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0207] Sending the third information as described above can mean sending the third information to a second device.

[0208] The aforementioned sensing measurement is the sensing measurement obtained after the first device processes the first data accordingly. For specific processing methods, please refer to the following implementation method.

[0209] The aforementioned sensing measurement quantity may include at least one of the following:

[0210] The first level of measurement (received signal / raw channel information) includes: the complex result of the received signal / channel response, amplitude / phase, I-channel / Q-channel and its operation results (operations include addition, subtraction, multiplication, division, matrix addition, subtraction, multiplication, matrix transpose, trigonometric operations, square root operations and power operations, as well as threshold detection results, maximum / minimum value extraction results, etc. of the above operation results; operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / IDFT, 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform and digital filtering, as well as threshold detection results, maximum / minimum value extraction results, etc. of the above operation results).

[0211] The second level of measurement (basic measurement) includes: time delay, Doppler, angle, intensity, and their multidimensional combination representations;

[0212] The third level of measurement (basic attributes / states) includes: distance, velocity, orientation, spatial position, and acceleration;

[0213] The fourth level of measurement (advanced attributes / status) includes: target presence, trajectory, action, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0214] By sending the aforementioned sensing measurements, more accurate sensing measurements can be reported.

[0215] By sending the aforementioned second instruction information, oversampling IDFT can be used in the process of acquiring the sensing measurement, so that the device receiving the sensing measurement can know the acquisition method of the sensing measurement, so as to better use the sensing measurement and improve the sensing performance.

[0216] The third indication information mentioned above may include the numerical value of the IDFT point count and corresponding table information. For example, the third indication information is used to indicate the numerical value of the IDFT point count used in the process of obtaining the sensing measurement quantity through sensing signal processing; or

[0217] The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The number of points of the IDFT is equal to α × N. The first table includes at least one index and at least one value of α, where α is a positive integer and N is the number of subcarriers occupied by the sensing signal; or

[0218] The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The second table includes at least one index and at least one value of P, where P represents the number of points of the IDFT.

[0219] The index of the first table can be the index of the first table in the absence of a first table group, i.e., the α corresponds to only one table, or the index of the first table can be the index of the first table in the first table group described in the above embodiments.

[0220] The index of the second table mentioned above can be the index of the second table in the absence of a second table group, that is, the above P corresponds to only one table, or the index of the second table can be the index of the second table in the second table group described in the above embodiments.

[0221] Since it can indicate the index of the first or second table mentioned above, the overhead of the third indication information can be saved.

[0222] As an optional implementation, the method further includes:

[0223] The first device performs sensing signal processing to obtain the sensing measurement quantity;

[0224] The sensing signal processing includes:

[0225] The first data is processed based on the first parameter to obtain the second data. The first processing is used to align the time delay spectra of M symbols in the first data.

[0226] The first device performs a second processing on the second data to obtain third data. The second processing is used to perform phase compensation on the time delay spectrum of at least some symbols in the M symbols of the second data.

[0227] The perceived measurement is obtained based on the third data.

[0228] In some implementations, the first process described above may include:

[0229] The frequency domain channel information of the subcarriers occupied by the sensing signal on each OFDM symbol is transformed to the time delay domain by using oversampled IDFT or zero-padding IDFT operations, thereby obtaining the oversampled time delay spectrum.

[0230] Obtain the shift values ​​between the time delay spectra of each OFDM symbol;

[0231] The time delay spectrum of each OFDM symbol is cyclically shifted in reverse according to the obtained shift value to achieve alignment between the time delay spectra of each OFDM symbol.

[0232] In some embodiments, the first process described above may further include:

[0233] After aligning the time delay spectrum of each OFDM symbol, downsampling can be performed along the time delay dimension to restore the time delay spectrum to an unsampled state.

[0234] In some embodiments described above, the second process may include the following steps:

[0235] For the aligned time delay spectrum, obtain the phase difference vector between the time delay spectra of each OFDM symbol;

[0236] Phase compensation is performed on the time delay spectrum of each OFDM symbol based on the obtained phase difference vector.

[0237] The first and second processing steps described above solve the time delay spectrum shift and phase deviation, thereby making the acquired sensing measurements more accurate and improving sensing performance.

[0238] In this embodiment, the first device determines a first parameter; wherein the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data being the data corresponding to the sensing signal, and the M symbols being the M symbols occupied by the sensing signal, where M is an integer greater than 1. Since the first parameter is used to obtain the time delay spectrum of the M symbols in the first data, relevant information about the time delay spectrum can be obtained. Furthermore, since the first parameter is used to obtain the time delay spectrum of the M symbols in the first data, this supports obtaining the time delay spectrum of the M symbols in the first data, which is beneficial for improving sensing performance.

[0239] Please see Figure 7 , Figure 7 This is a flowchart of an information sending method provided in an embodiment of this application, such as... Figure 7 As shown, it includes the following steps:

[0240] Step 701: The second device sends target information to the first device, the target information including at least one of the following: first information and first indication information;

[0241] The first information is used to determine the first parameter;

[0242] The first indication information is used to indicate at least one of the following:

[0243] The first parameter is determined by the first device;

[0244] Oversampling IDFT is used in the processing of the first data;

[0245] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0246] Optionally, the first parameter is the number of IDFT points P, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing an IDFT on the first data with P points, where P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

[0247] Optionally, P equals α × N, where α is an integer obtained based on a first table, the first table including at least one index and at least one value of α;

[0248] Alternatively, P can be an integer obtained based on a second table, which includes at least one index and at least one value of P.

[0249] Optionally, the first table is the table indicated by the first information in the first table group, or the first table is the table determined by the first device in the first table group;

[0250] Each table in the first table group includes at least one index and at least one value of α.

[0251] Optionally, the second table is the table indicated by the first information in the second table group, or the second table is the table determined by the first device in the second table group;

[0252] Each table in the second table group includes at least one index and at least one value of P.

[0253] Optionally, at least one of the first table, the first table group, the second table, and the second table group is configured on the network side or agreed upon by the protocol.

[0254] Optionally, the method further includes:

[0255] The second device receives second information sent by the first device, the second information being used to indicate the device capabilities related to computation of the first device.

[0256] Optionally, the device capabilities include at least one of the following:

[0257] Floating-point operations per second (FLOPS);

[0258] Maximum supported IDFT points;

[0259] IDFT point information supported at the maximum IDFT point count.

[0260] Optionally, the IDFT point information supported at the maximum IDFT point count is used to indicate one of the following:

[0261] Supports any number of IDFT points below the maximum IDFT point count;

[0262] Supports IDFT points that are at least one of the powers of 2 and 4 below the maximum IDFT point number;

[0263] Supports any number of IDFT points within the first range of integers below the maximum IDFT point value;

[0264] Supports IDFT points of at least one of powers of 2 and powers of 4 within a second range of integers below the maximum IDFT point number.

[0265] Optionally, the method further includes:

[0266] The second device receives third information sent by the first device, the third information including at least one of the following:

[0267] The sensing measurement quantity is obtained by sensing signal processing based on the first parameter.

[0268] The second indication information is used to indicate that oversampling IDFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0269] The third indication information is used to indicate the number of points of IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0270] Optionally, the third indication information is used to indicate the number of points of the IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing; or

[0271] The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The number of points in the IDFT is equal to α × N. The first table includes at least one index and at least one value of α, where α is a positive integer and N is the number of subcarriers occupied by the sensing signal; or

[0272] The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The second table includes at least one index and at least one value of P, where P represents the number of points of the IDFT.

[0273] Optionally, the method further includes:

[0274] The second device acquires fourth information, and the first parameter is associated with the fourth information.

[0275] In this implementation, the first parameter can be determined based on the fourth information.

[0276] Optionally, the fourth information includes at least one of the following:

[0277] Information related to the crystal oscillator performance of the sensing signal transmitting device;

[0278] Information related to the crystal oscillator performance of the receiving device for the sensed signal;

[0279] Sensing QoS information.

[0280] The device for transmitting the sensing signal may be the first device, the second device, or the third device, and the device for receiving the sensing signal may be the third device, the second device, or the first device, wherein the third device is...

[0281] The information related to the crystal oscillator performance mentioned above may include at least one of the following:

[0282] Crystal type, crystal frequency error, and the characteristics of frequency error variation over time.

[0283] In some implementations, if the crystal oscillator performance of the transmitter and receiver sensing the signal is good (small frequency error and a relatively stable slope of frequency error change over time), a relatively small first parameter, such as a relatively small IDFT number, can be determined to obtain good time delay spectrum alignment and phase compensation performance. Conversely, if the crystal oscillator performance of the transmitter and / or receiver is poor (large frequency error or a rapidly changing slope of frequency error change over time), a larger, relatively large first parameter, such as a relatively large IDFT number, is required to obtain good time delay spectrum alignment and phase compensation performance.

[0284] The aforementioned fourth information can be used to obtain a suitable first parameter, thereby saving computational overhead and improving sensing performance. For example, if the crystal oscillator performance of the transmitter and receiver of the sensing signal is good, a relatively small first parameter can be determined, thus saving computational overhead.

[0285] It should be noted that this embodiment is as a comparison with... Figure 6 The implementation method of the second device corresponding to the illustrated embodiment can be found in the following examples. Figure 6 To avoid repetition, the relevant descriptions of the embodiments shown will not be repeated in this embodiment.

[0286] The methods provided in the embodiments of this application are illustrated below through multiple examples:

[0287] Example 1:

[0288] In this embodiment, the first parameter is configured by the network-side device.

[0289] In this embodiment, the second device (network-side device) determines the first parameters required for sensing signal processing based on the sensing signal configuration (mainly sensing signal bandwidth and the number of subcarriers occupied by the sensing signal), sensing QoS requirements, crystal oscillator performance of the sensing signal transmitter and receiver, and the capability information of the first device (number of supported IDFT points), and then directly configures them to the first device via signaling.

[0290] The advantage of this embodiment is that the signaling process is simple and the complexity is placed on the network side, making it a preferred implementation method.

[0291] The first device receives first information (sent by the second device), the first information being used to determine the first parameter.

[0292] The first parameter mentioned above is the number of points in the IDFT operation that transforms the frequency domain signal on the subcarrier occupied by the sensing signal on each OFDM symbol from the frequency domain to the time delay domain during the sensing signal processing, i.e., the number of points P of oversampled IDFT or zero-padding IDFT.

[0293] The first device may be a base station or a terminal.

[0294] The second device can be a sensing network element or a base station.

[0295] In some implementations, the first parameter (such as the IDFT point count P) can be determined in the following two ways:

[0296] According to the specified multiple: that is, according to a certain multiple α, combined with the number of subcarriers N, the number of IDFT points in the first processing is P = αN.

[0297] In this method, a first table (also called a first mapping table) is pre-defined, which contains at least one available α value and its corresponding index. For example, in one embodiment, the first mapping table is shown in Table 2 above.

[0298] The advantage of using this method to determine the IDFT point count is that the improvement in apparent resolution performance is an integer multiple. For example, if the latency resolution using a conventional IDFT is Δτ, then the apparent resolution after using an oversampled IDFT (or zero-padded IDFT) is Δτ / α. Furthermore, after the first processing, the obtained second data can be downsampled, thereby reducing the amount of data required for subsequent processing.

[0299] It should be noted that a drawback of using this method to determine the IDFT point count is that the resulting IDFT point count P = αN may not necessarily accelerate the IDFT operation. In typical chips, for DFT or IDFT operations with points that are powers of 2 or 4, the operation can be accelerated using the Fast Fourier Transform.

[0300] If the number of subcarriers N of the sensing signal is not an integer power of 2, then the final P = αN will also not be an integer power of 2, which is detrimental to computational speedup. For example, if the first subcarrier of each of the 273 RBs in the NR protocol is used for the sensing signal, then the sensing signal will have N = 273 subcarriers, which is also detrimental to computational speedup.

[0301] Clearly, an α value of 1 in the first mapping table indicates that the first and second processing methods described in the above embodiments are not used; or, oversampling IDFT is not used in the first processing (that is, a conventional IFFT with P=N is used). A typical embodiment is that when the sensing signal bandwidth is large (e.g., when the sensing signal is in the millimeter-wave band), the time delay resolution corresponding to the sensing signal is high. In the process of using the method described in the technical solution section, an oversampling IFFT can be used in the first processing, followed by the second processing.

[0302] According to the specified IDFT points: that is, P is obtained directly according to the specified IDFT points.

[0303] In this method, a second table (also called a second mapping table) is pre-defined, which contains at least one available P value and its corresponding index. For example, in one embodiment, the second mapping table is shown in Table 3 above.

[0304] In contrast to the drawbacks of the previous method for determining IDFT points, this method has the advantage of ensuring that the final IDFT point value is a power of 2 or a power of 4, thereby accelerating the computation.

[0305] It should be noted that if the multiple P / N is not an integer, it is not conducive to downsampling the second data obtained after the first processing or the third data obtained after the second processing, thereby reducing the amount of data for subsequent processing.

[0306] When the multiple P / N is not an integer, a P-point DFT operation can be performed on the second or third data along the time delay dimension to transform it back to the frequency domain. Then, only N points are retained in the frequency domain, and an N-point IDFT operation is performed along the frequency domain to obtain the downsampled time delay spectrum.

[0307] In some implementations, the α value corresponds to a first table group, which may include one or more tables (also called sub-tables), each table including at least one available α value and a corresponding index.

[0308] Within each sub-table, there is a one-to-one correspondence between α values ​​and index values; across different sub-tables, the same index value can correspond to one or more α values, as shown in the examples in Tables 4-1 and 4-2 above.

[0309] In some implementations, the above-mentioned P value corresponds to a second table group, which may include one or more tables (also called sub-tables), each table including at least one available P value and a corresponding index.

[0310] Within each sub-table, there is a one-to-one correspondence between P-values ​​and index values; across different sub-tables, the same index value can correspond to one or more P-values, as shown in the examples in Tables 5-1 and 5-2 above.

[0311] In some implementations, the first information may include one of the following:

[0312] IDFT points: The first piece of information directly includes the specific value of the IDFT points.

[0313] The index value in the first table: The first information includes at least one index value in the first mapping table. The first device determines the corresponding IDFT point number from the first mapping table based on the obtained index value.

[0314] The index value of the second table: The first information includes at least one index value in the second mapping table. The first device determines the corresponding IDFT point number from the second mapping table based on the obtained index value.

[0315] In some implementations, the first information includes an index to either a first table or a second table:

[0316] If only the first table or the second table is available, the first device can directly determine the corresponding α value based on the index value in the first table of the first information, or determine the corresponding P value based on the index value in the second table of the first information.

[0317] If it is the first table group or the second table group, the first device can first determine the number of the first table or the second table, and then determine the corresponding α value or P value based on the obtained index value of the first table or the second table.

[0318] In some implementations, the first device determines the table number in the first table group or the second table group by means of the following methods:

[0319] The first piece of information includes the table number in the first table group or the second table group.

[0320] The table number in the first table group or the second table group is determined based on the device capability (computing power) of the first device. In some embodiments, the second device determines the table in the first table group or the second table group to be used based on the device capability of the first device; correspondingly, the first device uses the same principle to determine the number of the sub-tables.

[0321] For example, the device capability (computing power) of the first device is divided into several levels, and a device of a certain capability level corresponds to one or more tables in the first table group or the second table group. Specifically, in the examples of Tables 4-1 and 4-2, devices with stronger capabilities correspond to the first table shown in Table 4-2, and devices with weaker capabilities correspond to the first table shown in Table 4-1.

[0322] In this case, the act of determining the sub-table number based on the equipment capability is in accordance with the agreement. If it is indicated by signaling, it degenerates into the case of directly specifying the sub-table number.

[0323] Alternatively, the table number in the first or second table group can be determined based on the number N of subcarriers included in the sensing signal. In some embodiments, the second device determines the table in the first or second table group based on the number N of subcarriers in the sensing signal; correspondingly, the first device uses the same principle to determine the table number.

[0324] For example, taking Tables 4-1 and 4-2 as examples, when the number of sensing signal subcarriers N is in the range of N1 to N2, the first table shown in Table 4-2 is used; when the number of sensing signal subcarriers N is in the range of N2 to N3, the first table shown in Table 4-1 is used, where N1 <N2<N3。

[0325] In this case, the behavior of determining the table number based on the number of subcarriers of the sensed signal is agreed upon by the protocol. If indicated by signaling, it degenerates into the case of directly specifying the table number.

[0326] In some implementations, if the first information includes index values ​​of a first table or a second table, then the first device may acquire the first table and / or the second table before acquiring the first information.

[0327] The method by which the first device obtains the first form and / or the second form includes one of the following:

[0328] The first device receives the first table and / or the second table configured by the second device (network-side device).

[0329] In this case, the specific actions taken by the first device to obtain the first table and / or the second table are as follows:

[0330] The first device receives the first form and / or the second form sent by the second device. This can be configured via RRC signaling or NAS signaling.

[0331] The agreement specifies the first form and / or the second form.

[0332] In some implementations, the first device sends second information to the second device before the first device receives the first information.

[0333] The second information is device capability information related to the computation supported by the first device, which includes:

[0334] The maximum number of IDFT points that the first device can support.

[0335] It may also include information on limitations on the number of IDFT points that can be supported below the maximum IDFT point count. For example, it may include one of the following:

[0336] It can support any number of IDFT points below the maximum IDFT point count. For example, for IDFT points that are not integer powers of 2 or 4, even if the device can support them, it cannot be accelerated by fast Fourier transform. Therefore, only devices with strong computing power can complete the corresponding calculation within the allowed time.

[0337] It can only support IDFT points that are powers of 2 and / or powers of 4 below the maximum IDFT point number;

[0338] The device can support IDFT points of any integer value within a certain range below the maximum IDFT point value, and IDFT points of integer powers of 2 or 4 within a certain range. For example, if the maximum IDFT point value is taken as the first value, then there exists an integer second value that is less than the first value. The first device can support IDFT of any positive integer point value less than or equal to the second value, and IDFT of points greater than or equal to the second value and less than or equal to the integer powers of 2 or 4 within the range of the first value. In this case, the second information includes the second value.

[0339] The method by which the second device acquires the second information includes at least one of the following:

[0340] The second device sends a first signaling instruction to the first device, instructing the first device to report the second information. The first device sends the second information to the second device. The second device receives the second information.

[0341] The second device obtains the second information from the first network node, wherein the first network node stores the second information of the first device. The first device reports the second information to the network and stores it in the first network node at any time before accessing the network or before executing the method provided in the embodiments of this application.

[0342] In some implementations, the second device acquires the fourth information before sending the first information.

[0343] The aforementioned fourth information includes information related to the crystal oscillator performance of the transmitter and / or receiver of the sensing signal, including at least one of the following:

[0344] Crystal oscillators can be classified in various ways, such as by resonant frequency accuracy: high-precision crystal oscillators, medium-precision crystal oscillators, and ordinary crystal oscillators.

[0345] Crystal oscillator frequency error:

[0346] Characteristics of frequency error changing over time.

[0347] This can be understood as follows: if the crystal oscillator performance of the transmitter and receiver of the sensing signal is good (the frequency error of the crystal oscillator is small, and the slope of the frequency error change over time is relatively stable), then the first and second processing described in the technical solution section can be performed with a relatively small number of IDFT points to obtain good performance in time delay spectrum alignment and phase compensation. Conversely, if the crystal oscillator performance of the transmitter and / or receiver is poor (the frequency error of the crystal oscillator is large, or the slope of the frequency error change over time also changes rapidly over time), then a larger number of IDFT points is required to obtain good performance in time delay spectrum alignment and phase compensation.

[0348] The aforementioned fourth piece of information can include the following two situations:

[0349] If the transmitter of the sensing signal is the second device, then the fourth information only needs to include information related to the crystal oscillator performance of the first device;

[0350] If the transmitter of the sensing signal is a third device (a device other than the first and second devices), then the fourth information must include information related to the crystal oscillator performance of the first and / or third devices.

[0351] The method by which the second device obtains the fourth information includes at least one of the following:

[0352] The second device sends a second signaling message to the first device and / or the third device, instructing the first device and / or the third device to report the third information. The first device and / or the third device then send the third information to the second device. The second device receives the fourth information.

[0353] The second device obtains the fourth information from the second network node. The second network node stores the fourth information of the first device and / or the third device. The first device and / or the third device reported the third information to the network and stored it in the second network node at any time before accessing the network or before executing the method provided in the embodiments of this application.

[0354] The second network node and the first network node can be the same network node or different network nodes.

[0355] In some implementations, the second device acquires perceived QoS information before sending the first information.

[0356] When determining the number of IDFT points, the second device needs to consider information such as the sensing signal configuration (mainly the sensing signal bandwidth and the number of subcarriers occupied by the sensing signal), sensing QoS, and the capability information of the first device (the number of IDFT points it supports).

[0357] In some implementations, the second device combines the perceived QoS information, perceived signal configuration, and the capability information of the first device (the number of supported IDFT points) to determine the number of IDFT points, and then sends the first information to the first device.

[0358] Example 2:

[0359] In this embodiment, the first parameter is determined by the terminal.

[0360] In this embodiment, the first device determines the first parameter (such as the number of IDFT points). During the execution of the sensing service, in many cases, the second device will send sensing QoS requirement information to the first device for other reasons; and the sensing signal configuration (including sensing signal bandwidth and the number of subcarriers occupied by the sensing signal) is something the first device needs to obtain in all sensing services. Based on the above reasons, the first device already possesses the sensing QoS requirement information and the sensing signal configuration. On this basis, the first device can determine the number of IDFT points by combining the sensing signal configuration, the sensing QoS requirement, and the first device's capability information (the number of supported IDFT points).

[0361] In this scenario, after the first device completes the sensing signal processing, in addition to reporting the specified sensing measurement to the second device, it also needs to report the IDFT point count (used during the sensing signal processing) associated with the sensing measurement. This is because the IDFT point count reflects the accuracy of time delay spectrum alignment and phase compensation in the sensing signal processing, and can reflect the confidence level of the sensing measurement to a certain extent.

[0362] The first device determines the first parameter.

[0363] The first parameter is the number of points in the IDFT operation that transforms the frequency domain signal on the subcarrier occupied by the sensing signal on each OFDM symbol from the frequency domain to the time delay domain during the sensing signal processing, such as the number of points P of oversampled IDFT or zero-padding IDFT.

[0364] The method for determining the first parameter is described in the corresponding description in Embodiment 1, and will not be repeated here.

[0365] In some implementations, before the first device determines the first parameter, the first device obtains a first table and / or a second table (see the corresponding description in Embodiment 1, which will not be repeated here).

[0366] In some implementations, before the first device determines the first parameter, the first device acquires perceived QoS information and / or perceived signal configuration, wherein the perceived QoS information and perceived signal configuration are described in the corresponding description in Embodiment 1, and will not be repeated here.

[0367] In some implementations, the first device receives first indication information sent by the second device before the first device determines the first parameter.

[0368] Wherein, the first indication information is used to instruct the first device to adopt the method described in part of the technical solution of the present invention, to use oversampled IDFT in the first processing, and the first device determines the number of IDFT points of the oversampled IDFT by itself.

[0369] In some implementations, before the first device determines the first parameter, the first device sends second information to the second device, as detailed in the corresponding description in Embodiment 1, which will not be repeated here.

[0370] In some implementations, after determining the first parameter, the first device performs sensing signal processing. First data is sent to the second device, the first data including:

[0371] Sensing and measuring quantity;

[0372] The second indication information is used to indicate that oversampling IFFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0373] The third indication information: used to indicate the number of IDFT points used in the process of obtaining the sensed measurement quantity through sensing signal processing, and can be one of the following:

[0374] IDFT points: The first piece of information directly includes the specific value of the IDFT points.

[0375] Index values ​​in the first table: The first information includes at least one index value in the first table, and the first device determines the corresponding IDFT points from the first table based on the obtained index value.

[0376] The index value in the second table: The first information includes at least one index value in the second table, and the first device determines the corresponding IDFT points from the second table based on the obtained index value.

[0377] This application embodiment supports delay spectrum alignment through a first processing step and phase compensation between OFDM symbols through a second processing step, thereby overcoming the problems of delay spectrum shift and phase drift caused by timing drift. Furthermore, it can also overcome carrier frequency deviation and / or random phase issues. Thus, it solves the delay-Doppler spectrum problem caused by timing drift and / or random phase in bi-station sensing. Signal processing using the method provided in this application embodiment can achieve performance approaching perfect time-frequency synchronization.

[0378] The parameter determination method provided in this application can be executed by a parameter determination device. This application uses the example of a parameter determination device executing the parameter determination method to illustrate the parameter determination device provided in this application.

[0379] The information sending method provided in this application can be executed by an information sending device. This application uses an information sending device executing the information sending method as an example to illustrate the information sending device provided in this application.

[0380] This application provides a parameter determination device. As an example, the parameter determination device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0381] This application provides an information transmitting device. As an example, the information transmitting device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0382] The parameter determination device or information transmission device may include a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor may include a general-purpose processor, a special-purpose processor, such as a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), an Artificial Intelligence (AI) processor, a Graphics Processing Unit (GPU), an Application Specific Integrated Circuit (ASIC), a Network Processor (NP), a Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which may include one or more of the following: a transceiver, pins, circuits, a bus, and a radio frequency unit.

[0383] For details, see Figure 8 When the parameter determination device is a terminal or a component within a terminal, or when the parameter determination device is a network-side device or a component within a network-side device, the parameter determination device 800 includes:

[0384] Processing module 801 is used to determine the first parameter;

[0385] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0386] Optionally, the device further includes:

[0387] A receiving module is used to receive first information, which is used to determine a first parameter.

[0388] Optionally, the first parameter is the number of IDFT points P, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing an IDFT on the first data with P points, where P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

[0389] Optionally, P equals α × N, where α is an integer obtained based on a first table, the first table including at least one index and at least one value of α;

[0390] Alternatively, P can be an integer obtained based on a second table, which includes at least one index and at least one value of P.

[0391] Optionally, the first table is the table indicated by the first information in the first table group, or the first table is the table determined by the first device in the first table group;

[0392] Each table in the first table group includes at least one index and at least one value of α.

[0393] Optionally, the second table is the table indicated by the first information in the second table group, or the second table is the table determined by the first device in the second table group;

[0394] Each table in the second table group includes at least one index and at least one value of P.

[0395] Optionally, at least one of the first table, the first table group, the second table, and the second table group is configured on the network side or agreed upon by the protocol.

[0396] Optionally, the device further includes:

[0397] The sending module is used to send second information, which is used to indicate the device capabilities related to the operation of the first device.

[0398] Optionally, the device capabilities include at least one of the following:

[0399] Floating-point operations per second (FLOPS);

[0400] Maximum supported IDFT points;

[0401] IDFT point information supported at the maximum IDFT point count.

[0402] Optionally, the IDFT point information supported at the maximum IDFT point count is used to indicate one of the following:

[0403] Supports any number of IDFT points below the maximum IDFT point count;

[0404] Supports IDFT points that are at least one of the powers of 2 and 4 below the maximum IDFT point number;

[0405] Supports any number of IDFT points within the first range of integers below the maximum IDFT point value;

[0406] Supports IDFT points of at least one of powers of 2 and powers of 4 within a second range of integers below the maximum IDFT point number.

[0407] Optionally, the processing module 801 is used to determine a first parameter based on at least one of the perceived QoS information, perceived signal configuration, and device capabilities related to the operation of the first device.

[0408] Optionally, the receiving module of the device is further configured to receive at least one of the sensed QoS information and sensed signal configuration.

[0409] Optionally, the receiving module of the device is further configured to receive first indication information, the first indication information being used to indicate at least one of the following:

[0410] The first parameter is determined by the first device;

[0411] Oversampling IDFT is used in the processing of the first data.

[0412] Optionally, the transmitting module of the device is further configured to transmit third information, the third information including at least one of the following:

[0413] Sensing and measuring quantity;

[0414] The second indication information is used to indicate that oversampling IDFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0415] The third indication information is used to indicate the number of points of IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0416] Optionally, the third indication information is used to indicate the number of points of the IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing; or

[0417] The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The number of points of the IDFT is equal to α × N. The first table includes at least one index and at least one value of α, where α is a positive integer and N is the number of subcarriers occupied by the sensing signal; or

[0418] The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The second table includes at least one index and at least one value of P, where P represents the number of points of the IDFT.

[0419] Optionally, the processing module 801 is also used to perform sensing signal processing to obtain sensing measurement quantities;

[0420] The sensing signal processing includes:

[0421] The first data is processed based on the first parameter to obtain the second data. The first processing is used to align the time delay spectra of M symbols in the first data.

[0422] The first device performs a second processing on the second data to obtain third data. The second processing is used to perform phase compensation on the time delay spectrum of at least some symbols in the M symbols of the second data.

[0423] The perceived measurement is obtained based on the third data.

[0424] The aforementioned parameter determination device is beneficial for improving sensing performance.

[0425] The parameter determination device provided in this application embodiment can achieve... Figure 6 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0426] See Figure 9 When the information transmitting device is a terminal or a component within a terminal, or when the information transmitting device is a network-side device or a component within a network-side device, the information transmitting device 900 includes:

[0427] The sending module 901 is used to send target information to the first device, the target information including at least one of the following: first information and first indication information;

[0428] The first information is used to determine the first parameter;

[0429] The first indication information is used to indicate at least one of the following:

[0430] The first parameter is determined by the first device;

[0431] Oversampling IDFT is used in the processing of the first data;

[0432] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0433] Optionally, the first parameter is the number of IDFT points P, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing an IDFT on the first data with P points, where P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

[0434] Optionally, P equals α × N, where α is an integer obtained based on a first table, the first table including at least one index and at least one value of α;

[0435] Alternatively, P can be an integer obtained based on a second table, which includes at least one index and at least one value of P.

[0436] Optionally, the first table is the table indicated by the first information in the first table group, or the first table is the table determined by the first device in the first table group;

[0437] Each table in the first table group includes at least one index and at least one value of α.

[0438] Optionally, the second table is the table indicated by the first information in the second table group, or the second table is the table determined by the first device in the second table group;

[0439] Each table in the second table group includes at least one index and at least one value of P.

[0440] Optionally, at least one of the first table, the first table group, the second table, and the second table group is configured on the network side or agreed upon by the protocol.

[0441] Optionally, the device further includes:

[0442] The receiving module is used to receive second information sent by the first device, the second information being used to indicate the device capabilities related to the calculation of the first device.

[0443] Optionally, the device capabilities include at least one of the following:

[0444] Floating-point operations per second (FLOPS);

[0445] Maximum supported IDFT points;

[0446] IDFT point information supported at the maximum IDFT point count.

[0447] Optionally, the IDFT point information supported at the maximum IDFT point count is used to indicate one of the following:

[0448] Supports any number of IDFT points below the maximum IDFT point count;

[0449] Supports IDFT points that are at least one of the powers of 2 and 4 below the maximum IDFT point number;

[0450] Supports any number of IDFT points within the first range of integers below the maximum IDFT point value;

[0451] Supports IDFT points of at least one of powers of 2 and powers of 4 within a second range of integers below the maximum IDFT point number.

[0452] Optionally, the receiving module of the device is further configured to receive third information sent by the first device, the third information including at least one of the following:

[0453] The sensing measurement quantity is obtained by sensing signal processing based on the first parameter.

[0454] The second indication information is used to indicate that oversampling IDFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0455] The third indication information is used to indicate the number of points of IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0456] Optionally, the third indication information is used to indicate the number of points of the IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing; or

[0457] The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The number of points in the IDFT is equal to α × N. The first table includes at least one index and at least one value of α, where α is a positive integer and N is the number of subcarriers occupied by the sensing signal; or

[0458] The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The second table includes at least one index and at least one value of P, where P represents the number of points of the IDFT.

[0459] Optionally, the receiving module of the device is further configured to acquire fourth information, wherein the first parameter is associated with the fourth information.

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

[0461] Information related to the crystal oscillator performance of the sensing signal transmitting device;

[0462] Information related to the crystal oscillator performance of the receiving device for the sensed signal;

[0463] Perceive Quality of Service (QoS) information.

[0464] Optionally, the information related to the crystal oscillator performance includes at least one of the following:

[0465] Crystal type, crystal frequency error, and the characteristics of frequency error variation over time.

[0466] The aforementioned information transmission device helps improve sensing performance.

[0467] The information sending device provided in this application embodiment can achieve... Figure 7 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0468] like Figure 10 As shown in the illustration, this application also provides a communication device 1000, including a processor 1001 and a memory 1002. The memory 1002 stores a program or instructions that can run on the processor 1001. For example, when the communication device 1000 is a first device, the program or instructions executed by the processor 1001 implement the various steps of the above-described parameter determination method embodiment and achieve the same technical effect. When the communication device 1000 is a second device, the program or instructions executed by the processor 1001 implement the various steps of the above-described information transmission method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0469] This application embodiment also provides a device, including 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, as shown in the example. Figure 6 The steps in the method embodiment shown are illustrated. This device embodiment corresponds to the above parameter determination method embodiment, and all implementation processes and methods of the above method embodiments can be applied to this device embodiment and achieve the same technical effect. The device can be... Figure 8 The parameter determining device is shown. Specifically, Figure 11 This is a schematic diagram of the hardware structure of a device according to an embodiment of this application. The device is a first device.

[0470] The device 1100 includes, but is not limited to, at least some of the following components: radio frequency unit 1101, network module 1102, audio output unit 1103, input unit 1104, sensor 1105, display unit 1106, user input unit 1107, interface unit 1108, memory 1109, and processor 1110.

[0471] Those skilled in the art will understand that the device 1100 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1110 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 11 The device structure shown does not constitute a limitation on the device. The device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0472] It should be understood that, in this embodiment, the input unit 1104 may include a graphics processor 11041 and a microphone 11042. The graphics processor 11041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1106 may include a display panel 11061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0473] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1101 can transmit it to the processor 1110 for processing; in addition, the radio frequency unit 1101 can send uplink data to the network-side device. Typically, the radio frequency unit 1101 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0474] The memory 1109 can be used to store software programs or instructions, as well as various data. The memory 1109 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1109 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1109 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0475] Processor 1110 may include one or more processing units; optionally, processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1110.

[0476] The processor 1110 is used to determine the first parameter;

[0477] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0478] Optionally, the radio frequency unit 1101 is used to receive first information, which is used to determine a first parameter.

[0479] Optionally, the first parameter is the number of IDFT points P, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing an IDFT on the first data with P points, where P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

[0480] Optionally, P equals α × N, where α is an integer obtained based on a first table, the first table including at least one index and at least one value of α;

[0481] Alternatively, P can be an integer obtained based on a second table, which includes at least one index and at least one value of P.

[0482] Optionally, the first table is the table indicated by the first information in the first table group, or the first table is the table determined by the first device in the first table group;

[0483] Each table in the first table group includes at least one index and at least one value of α.

[0484] Optionally, the second table is the table indicated by the first information in the second table group, or the second table is the table determined by the first device in the second table group;

[0485] Each table in the second table group includes at least one index and at least one value of P.

[0486] Optionally, at least one of the first table, the first table group, the second table, and the second table group is configured on the network side or agreed upon by the protocol.

[0487] Optionally, the radio frequency unit 1101 is also used to transmit second information, which is used to indicate the device capabilities related to the operation of the first device.

[0488] Optionally, the device capabilities include at least one of the following:

[0489] Floating-point operations per second (FLOPS);

[0490] Maximum supported IDFT points;

[0491] IDFT point information supported at the maximum IDFT point count.

[0492] Optionally, the IDFT point information supported at the maximum IDFT point count is used to indicate one of the following:

[0493] Supports any number of IDFT points below the maximum IDFT point count;

[0494] Supports IDFT points that are at least one of the powers of 2 and 4 below the maximum IDFT point number;

[0495] Supports any number of IDFT points within the first range of integers below the maximum IDFT point value;

[0496] Supports IDFT points of at least one of powers of 2 and powers of 4 within a second range of integers below the maximum IDFT point number.

[0497] Optionally, determining the first parameter includes:

[0498] The first parameter is determined by at least one of the following: sensing QoS information, sensing signal configuration, and device capabilities related to the operation of the first device.

[0499] Optionally, the radio frequency unit 1101 is also configured to receive at least one of the sensed QoS information and sensed signal configuration.

[0500] Optionally, the radio frequency unit 1101 is further configured to receive first indication information, the first indication information being used to indicate at least one of the following:

[0501] The first parameter is determined by the first device;

[0502] Oversampling IDFT is used in the processing of the first data.

[0503] Optionally, the radio frequency unit 1101 is further configured to transmit third information, the third information including at least one of the following:

[0504] Sensing and measuring quantity;

[0505] The second indication information is used to indicate that oversampling IDFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0506] The third indication information is used to indicate the number of points of IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0507] Optionally, the third indication information is used to indicate the number of points of the IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing; or

[0508] The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The number of points of the IDFT is equal to α × N. The first table includes at least one index and at least one value of α, where α is a positive integer and N is the number of subcarriers occupied by the sensing signal; or

[0509] The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The second table includes at least one index and at least one value of P, where P represents the number of points of the IDFT.

[0510] Optionally, the processor 1110 is also configured to perform sensing signal processing to obtain sensing measurements;

[0511] The sensing signal processing includes:

[0512] The first data is processed based on the first parameter to obtain the second data. The first processing is used to align the time delay spectra of M symbols in the first data.

[0513] The first device performs a second processing on the second data to obtain third data. The second processing is used to perform phase compensation on the time delay spectrum of at least some symbols in the M symbols of the second data.

[0514] The perceived measurement is obtained based on the third data.

[0515] The aforementioned equipment is beneficial for improving sensing performance.

[0516] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the parameter determination method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0517] It should be noted that this embodiment uses the first device as the terminal for illustration. In this embodiment, the second device can also be a terminal, that is, the aforementioned terminal can also be implemented. Figure 7 The steps in the method shown.

[0518] This application embodiment also provides a device, including 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, as shown in the example. Figure 7 The steps of the method embodiment shown are illustrated. This device embodiment corresponds to the above-described information sending method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this device embodiment and can achieve the same technical effect.

[0519] Specifically, this application also provides a device, which is a second device, and the device can be... Figure 9 The information transmission device shown. For example... Figure 12As shown, the device 1200 includes: an antenna 1201, a radio frequency (RF) device 1202, a baseband device 1203, a processor 1204, and a memory 1205. The antenna 1201 is connected to the RF device 1202. In the uplink direction, the RF device 1202 receives information through the antenna 1201 and transmits the received information to the baseband device 1203 for processing. In the downlink direction, the baseband device 1203 processes the information to be transmitted and sends it to the RF device 1202, which then processes the received information and transmits it through the antenna 1201.

[0520] The methods executed by the device in the above embodiments can be implemented in the baseband device 1203, which includes a baseband processor.

[0521] The baseband device 1203 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 12 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1205 via a bus interface to call the program in the memory 1205 and execute the network device operation shown in the above method embodiment.

[0522] The device may also include a network interface 1206, such as a Common Public Radio Interface (CPRI).

[0523] Specifically, the device 1200 in this application embodiment further includes: instructions or programs stored in memory 1205 and executable on processor 1204, wherein processor 1204 calls the instructions or programs in memory 1205 to execute. Figure 9 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0524] Radio frequency device 1202 is used to send target information to a first device, the target information including at least one of the following: first information and first indication information;

[0525] The first information is used to determine the first parameter;

[0526] The first indication information is used to indicate at least one of the following:

[0527] The first parameter is determined by the first device;

[0528] Oversampling IDFT is used in the processing of the first data;

[0529] Wherein, the first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, and the M symbols are the M symbols occupied by the sensing signal, where M is an integer greater than 1.

[0530] Optionally, the first parameter is the number of IDFT points P, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing an IDFT on the first data with P points, where P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

[0531] Optionally, P equals α × N, where α is an integer obtained based on a first table, the first table including at least one index and at least one value of α;

[0532] Alternatively, P can be an integer obtained based on a second table, which includes at least one index and at least one value of P.

[0533] Optionally, the first table is the table indicated by the first information in the first table group, or the first table is the table determined by the first device in the first table group;

[0534] Each table in the first table group includes at least one index and at least one value of α.

[0535] Optionally, the second table is the table indicated by the first information in the second table group, or the second table is the table determined by the first device in the second table group;

[0536] Each table in the second table group includes at least one index and at least one value of P.

[0537] Optionally, the radio frequency device 1202 is further configured to receive second information sent by the first device, the second information being used to indicate the device capabilities related to the computation of the first device.

[0538] Optionally, the device capabilities include at least one of the following:

[0539] Floating-point operations per second (FLOPS);

[0540] Maximum supported IDFT points;

[0541] IDFT point information supported at the maximum IDFT point count.

[0542] Optionally, the IDFT point information supported at the maximum IDFT point count is used to indicate one of the following:

[0543] Supports any number of IDFT points below the maximum IDFT point count;

[0544] Supports IDFT points that are at least one of the powers of 2 and 4 below the maximum IDFT point number;

[0545] Supports any number of IDFT points within the first range of integers below the maximum IDFT point value;

[0546] Supports IDFT points of at least one of powers of 2 and powers of 4 within a second range of integers below the maximum IDFT point number.

[0547] Optionally, the radio frequency device 1202 is further configured to receive third information transmitted by the first device, the third information including at least one of the following:

[0548] The sensing measurement quantity is obtained by sensing signal processing based on the first parameter.

[0549] The second indication information is used to indicate that oversampling IDFT was used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0550] The third indication information is used to indicate the number of points of IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing.

[0551] Optionally, the third indication information is used to indicate the number of points of the IDFT used in the process of obtaining the sensing measurement quantity through sensing signal processing; or

[0552] The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The number of points in the IDFT is equal to α × N. The first table includes at least one index and at least one value of α, where α is a positive integer and N is the number of subcarriers occupied by the sensing signal; or

[0553] The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement quantity through sensing signal processing. The second table includes at least one index and at least one value of P, where P represents the number of points of the IDFT.

[0554] Optionally, the radio frequency device 1202 is also used to acquire fourth information, wherein the first parameter is associated with the fourth information.

[0555] Optionally, the fourth information includes at least one of the following:

[0556] Information related to the crystal oscillator performance of the sensing signal transmitting device;

[0557] Information related to the crystal oscillator performance of the receiving device for the sensed signal;

[0558] Perceive Quality of Service (QoS) information.

[0559] Optionally, the information related to the crystal oscillator performance includes at least one of the following:

[0560] Crystal type, crystal frequency error, and the characteristics of frequency error variation over time.

[0561] The aforementioned equipment is beneficial for improving sensing performance.

[0562] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the parameter determination method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0563] It should be noted that this embodiment uses the second device as a network-side device for illustration. In this application embodiment, the first device can also be a network-side device, that is, the aforementioned network-side device can also be implemented. Figure 6 The steps in the method shown.

[0564] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described parameter determination method or information sending method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0565] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0566] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described parameter determination method or information sending method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0567] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0568] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described parameter determination method or information transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0569] This application also provides a wireless communication system, including a first device and a second device. The first device can be used to perform the steps of the parameter determination method provided in this application, and the second device can be used to perform the steps of the information transmission method provided in this application.

[0570] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0571] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0572] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A parameter determination method characterized by, The method comprises: A first device determines a first parameter; The first parameter is used to obtain a time delay spectrum of M symbols in first data, the first data is data corresponding to a sensing signal, the M symbols are M symbols occupied by the sensing signal, and M is an integer greater than 1.

2. The method of claim 1, wherein, The method further comprises: The first device receives first information, and the first information is used to determine the first parameter.

3. The method according to claim 1 or 2, characterized in that, The first parameter is a point number P of inverse discrete Fourier transform (IDFT), the time delay spectrum of the M symbols in the first data is a time delay spectrum obtained by performing P-point IDFT on the first data, and P is an integer greater than or equal to N, and N is a number of subcarriers occupied by the sensing signal.

4. The method of claim 3, wherein, The P is equal to α×N, wherein the α is an integer obtained based on a first table, and the first table comprises at least one index and at least one value of the α. Alternatively, the P is an integer obtained based on a second table, and the second table comprises at least one index and at least one value of the P.

5. The method of claim 4, wherein, The first table is a table indicated by the first information in a first table group, or the first table is a table determined by the first device in the first table group. Each table in the first table group comprises at least one index and at least one value of the α; or The second table is a table indicated by the first information in a second table group, or the second table is a table determined by the first device in the second table group. Each table in the second table group comprises at least one index and at least one value of the P.

6. The method of any one of claims 4-5, wherein, At least one of the first table, the first table group, the second table, and the second table group is configured by a network side or agreed by a protocol.

7. The method according to any one of claims 2 to 6, characterized in that, The method further comprises: The first device sends second information, and the second information is used to indicate a device capability related to operation of the first device.

8. The method of claim 7, wherein, The device capability comprises at least one of the following: A floating point operation per second (FLOPS); A maximum IDFT point number supported; IDFT point number information supported under the maximum IDFT point number.

9. The method of claim 8, wherein, The IDFT point number information supported under the maximum IDFT point number is used to indicate one of the following: IDFT point numbers of any value below the maximum IDFT point number are supported; IDFT point numbers of at least one of an integer power of 2 and an integer power of 4 below the maximum IDFT point number are supported; IDFT point numbers of any value in a first range of integers below the maximum IDFT point number are supported; IDFT point numbers of at least one of an integer power of 2 and an integer power of 4 in a second range of integers below the maximum IDFT point number are supported.

10. The method of claim 1, 3, 4, 5, or 6, wherein, The first device determines the first parameter, comprising: The first device determines the first parameter based on at least one of sensing quality of service (QoS) information, sensing signal configuration, and device capability related to operation of the first device.

11. The method of claim 10, wherein, The method further comprises: The first device receives at least one of the sensing QoS information and the sensing signal configuration.

12. The method of claim 1, 3, 4, 5, 6, 10, or 11, wherein, The method further comprises: The first device receives first indication information, and the first indication information is used to indicate at least one of the following: The first parameter is determined by the first device; The oversampling IDFT is used in processing the first data.

13. The method according to any one of claims 1 to 12, characterized in that, The method further comprises: The first device sends third information, and the third information comprises at least one of the following: a sensing measurement; second indication information, which is used to indicate that the oversampling IDFT is used in the process of obtaining the sensing measurement through the sensing signal processing; third indication information, which is used to indicate the relevant information of the number of points of the IDFT used in the process of obtaining the sensing measurement through the sensing signal processing.

14. The method of claim 13, wherein, The third indication information is used to indicate the value of the number of points of the IDFT used in the process of obtaining the sensing measurement through the sensing signal processing; or The third indication information is used to indicate the index in the first table used in the process of obtaining the sensing measurement through the sensing signal processing, and the number of points of the IDFT is equal to α×N, the first table comprises at least one index and at least one value of the α, the α is a positive integer, and N is the number of subcarriers occupied by the sensing signal. Or The third indication information is used to indicate the index in the second table used in the process of obtaining the sensing measurement through the sensing signal processing, and the second table comprises at least one index and at least one value of P, and P represents the number of points of the IDFT.

15. An information transmission method characterized by comprising: Comprise: The second device sends target information to the first device, and the target information comprises at least one of the following: the first information and the first indication information; The first information is used to determine the first parameter; The first indication information is used to indicate at least one of the following: The first parameter is determined by the first device; The oversampling inverse discrete Fourier transform (IDFT) is used in processing the first data; The first parameter is used to obtain the time delay spectrum of M symbols in the first data, the first data is the data corresponding to the sensing signal, the M symbols are M symbols occupied by the sensing signal, and M is an integer greater than 1.

16. The method of claim 15, wherein, The first parameter is the number of points P of the IDFT, the time delay spectrum of the M symbols in the first data is the time delay spectrum obtained by performing P-point IDFT on the first data, and P is an integer greater than or equal to N, and N is the number of subcarriers occupied by the sensing signal.

17. The method according to claim 15 or 16, characterized in that, The method further comprises: The second device receives the second information sent by the first device, and the second information is used to indicate the device capability related to the operation of the first device.

18. The method of any one of claims 15-17, wherein, The method further comprises: The second device receives the third information sent by the first device, and the third information comprises at least one of the following: a sensing measurement, which is obtained through the sensing signal processing based on the first parameter; second indication information, which is used to indicate that the oversampling IDFT is used in the process of obtaining the sensing measurement through the sensing signal processing; third indication information, which is used to indicate the relevant information of the number of points of the IDFT used in the process of obtaining the sensing measurement through the sensing signal processing.

19. The method according to any one of claims 15 to 18, characterized in that, The method further comprises: The second device obtains fourth information, and the first parameter is associated with the fourth information.

20. The method of claim 19, wherein, The fourth information comprises at least one of the following: information related to a crystal oscillator performance of a transmitting device of the sensing signal; information related to a crystal oscillator performance of a receiving device of the sensing signal; sensing quality of service (QoS) information.

21. A parameter determination apparatus characterized by comprising: comprising: a processing module configured to determine a first parameter; wherein the first parameter is used to obtain a delay spectrum of M symbols in first data, the first data is data corresponding to a sensing signal, the M symbols are M symbols occupied by the sensing signal, and M is an integer greater than 1.

22. The apparatus of claim 21, wherein, The apparatus further comprises: a receiving module configured to receive first information, the first information being used to determine the first parameter.

23. The apparatus of claim 21 or 22, wherein, The apparatus further comprises: a sending module configured to send second information, the second information being used to indicate a device capability related to computation of the first device.

24. The apparatus of claim 21 or 23, wherein, The processing module is configured to determine the first parameter based on at least one of sensing quality of service (QoS) information, sensing signal configuration, and the device capability related to computation of the first device.

25. An information transmitting apparatus, characterized by comprising: comprising: a sending module configured to send target information to the first device, the target information comprising at least one of the following: first information and first indication information; the first information being used to determine the first parameter; the first indication information being used to indicate at least one of the following: determination of the first parameter by the first device; oversampling inverse discrete Fourier transform (IDFT) is used in processing of the first data; wherein the first parameter is used to obtain a delay spectrum of M symbols in first data, the first data is data corresponding to a sensing signal, the M symbols are M symbols occupied by the sensing signal, and M is an integer greater than 1.

26. The apparatus of claim 25, wherein, The apparatus further comprises: a receiving module configured to receive second information sent by the first device, the second information being used to indicate the device capability related to computation of the first device.

27. An apparatus comprising: comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the parameter determination method according to any one of claims 1 to 14, or to implement steps of the information sending method according to any one of claims 15 to 20.

28. A readable storage medium, characterized by, The readable storage medium stores programs or instructions, the programs or instructions being executed by a processor to implement steps of the parameter determination method according to any one of claims 1 to 14, or to implement steps of the information sending method according to any one of claims 15 to 20.

29. A computer program product, characterised in that, The computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement steps of the parameter determination method according to any one of claims 1 to 14, or to implement steps of the information sending method according to any one of claims 15 to 20.

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