Generation method, device, product and electronic equipment for sensing integrated signal

Abstract

The invention provides a method, a device, a product and electronic equipment for generating a communication and sensing integrated signal, and relates to the technical field of communication and sensing integration, and the method can limit the position of a sensing subcarrier in a frequency division multiplexing symbol corresponding to a sensing resource through a sensing resource pattern, and generates a corresponding chirp sensing reference signal sequence. The chirp sensing reference signal sequence is applied to the sensing subcarrier position, a pattern used for generating a frequency division multiplexing signal with integrated communication and inductance can be obtained, a communication and inductance integration signal generation process based on frequency division multiplexing is achieved, and compared with communication and inductance integration based on time division multiplexing, the communication and inductance integration signal generation efficiency is improved. The communication and sensing integrated frequency division multiplexing signal comprises a communication part and a sensing part, so that all-time communication and sensing integration can be realized. In addition, the resource exclusive occupation of the frequency domain or time domain dimension can be avoided, the resource configuration is optimized, and the resource waste is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of synaesthesia integration, and in particular to a synaesthesia integration signal generation method, a synaesthesia integration signal generation device, a computer program product and an electronic device. Background Art

[0002] Synaesthesia integration is an important application scenario in the 5.5G and 6G stages. It can provide strong technical support for the development of the low-altitude economy and is considered a key communication technology required for the upgrade of the air traffic control system. Synaesthesia = communication + perception. Synaesthesia integration technology is to add radar-like perception functions to the original cellular mobile communication capabilities. The synaesthesia integration system can perceive the environment, capture and measure the distance, speed, attributes, and status of the target object (such as drones and other aircraft).

[0003] In the related art, communication signals and perception signals are usually generated alternately according to time periods based on time division multiplexing technology. However, perception signals cannot be received during the communication period, and communication signals cannot be received during the perception period, so it is impossible to achieve full-time synaesthesia integration.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute an existing solution known to ordinary technicians in the field. Summary of the invention

[0005] The purpose of the present application is to provide a method for generating a synaesthesia integrated signal, a synaesthesia integrated signal generating device, a computer program product and an electronic device. The sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource can be limited by the sensing resource pattern, and the corresponding chirp sensing reference signal sequence is generated. The chirp sensing reference signal sequence is applied to the sensing subcarrier position, and a pattern for generating a synaesthesia integrated frequency division multiplexing signal can be obtained, and a synaesthesia integrated signal generation process based on frequency division multiplexing is realized. Compared with the synaesthesia integration based on time division multiplexing, the synaesthesia integrated frequency division multiplexing signal in the present application includes both a communication part and a perception part, and can realize the synaesthesia integration of the whole period. In addition, the resource monopoly of the frequency domain or time domain dimension can be avoided, the resource allocation is optimized, and the waste of resources is avoided. In addition, since the synaesthesia integration of the whole period can be realized, the perception performance can also be improved. In addition, since the chirp waveform is used, the perception advantage of the radar waveform is utilized, and the compatibility with the communication signal system is taken into account, so that the communication and perception signals can be modulated and transmitted in an integrated manner.

[0006] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0007] According to one aspect of the present application, a method for generating a synaesthesia integrated signal is provided, the method comprising:

[0008] Acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit the sensing subcarrier position within the frequency division multiplexing symbol corresponding to the sensing resource;

[0009] generating a chirp sensing reference signal sequence according to the sensing resource pattern;

[0010] Applying a chirp sensing reference signal sequence to a sensing subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern;

[0011] Generate a synaesthesia-integrated frequency-division multiplexing signal based on a reference pattern.

[0012] In an exemplary embodiment of the present application, it further includes:

[0013] The sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource is determined according to the sensing available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

[0014] In an exemplary embodiment of the present application, generating a chirp perception reference signal sequence according to a perception resource pattern includes:

[0015] Generate a reference sequence according to a sensing resource pattern, a chirp rate, a sampling rate, a number of sampling points in a frequency division multiplexing symbol, a duration of a sensing chirp signal, and a duration of a frequency division multiplexing symbol;

[0016] Complement the end of the reference sequence to obtain a sequence of target length;

[0017] Perform fast Fourier transform on the target length sequence to obtain the chirp perception reference signal sequence.

[0018] In an exemplary embodiment of the present application, a chirp sensing reference signal sequence is applied to a sensing subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern, including:

[0019] For each frequency division multiplexing symbol in the perception resource pattern, each element in the chirp perception reference signal sequence is respectively allocated to a corresponding perception subcarrier position until all frequency division multiplexing symbols are processed to obtain a reference pattern.

[0020] In an exemplary embodiment of the present application, generating a synaesthesia integrated frequency division multiplexing signal based on a reference pattern includes:

[0021] Performing inverse Fourier transform on each frequency division multiplexing symbol in the wireless frame based on the reference pattern and adding a cyclic prefix to generate a synaesthesia frequency division multiplexing symbol;

[0022] A synaesthesia-integrated frequency-division-multiplexed signal is generated based on each synaesthesia-integrated frequency-division-multiplexed symbol.

[0023] In an exemplary embodiment of the present application, it further includes:

[0024] Transmitting interaceptive integrated frequency division multiplexing signals and receiving echo signals;

[0025] Demodulate the echo signal to obtain the sensing data;

[0026] The perception results are generated based on the integrated frequency division multiplexing signal and the perception data.

[0027] In an exemplary embodiment of the present application, the perceptual resource pattern is used to occupy the available bandwidth in a comb-like distribution.

[0028] According to one aspect of the present application, a synaesthesia integrated signal generating device is provided, comprising:

[0029] A pattern acquisition unit, configured to acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit a sensing subcarrier position within a frequency division multiplexing symbol corresponding to a sensing resource;

[0030] A sequence generating unit, used for generating a chirp sensing reference signal sequence according to the sensing resource pattern;

[0031] A pattern generating unit, configured to apply a chirp sensing reference signal sequence to a sensing subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern;

[0032] The signal generating unit is used to generate a synaesthesia integrated frequency division multiplexing signal based on a reference pattern.

[0033] In an exemplary embodiment of the present application, it further includes:

[0034] The perception subcarrier position determination unit is used to determine the perception subcarrier position in the frequency division multiplexing symbol corresponding to the perception resource according to the perception available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

[0035] In an exemplary embodiment of the present application, a sequence generation unit generates a chirp perception reference signal sequence according to a perception resource pattern, including:

[0036] Generate a reference sequence according to a sensing resource pattern, a chirp rate, a sampling rate, a number of sampling points in a frequency division multiplexing symbol, a duration of a sensing chirp signal, and a duration of a frequency division multiplexing symbol;

[0037] Complement the end of the reference sequence to obtain a sequence of target length;

[0038] Perform fast Fourier transform on the target length sequence to obtain the chirp perception reference signal sequence.

[0039] In an exemplary embodiment of the present application, the pattern generation unit applies the chirp perception reference signal sequence to the perception subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern, including:

[0040] For each frequency division multiplexing symbol in the perception resource pattern, each element in the chirp perception reference signal sequence is respectively allocated to a corresponding perception subcarrier position until all frequency division multiplexing symbols are processed to obtain a reference pattern.

[0041] In an exemplary embodiment of the present application, a signal generating unit generates a synaesthesia integrated frequency division multiplexing signal based on a reference pattern, including:

[0042] Performing inverse Fourier transform on each frequency division multiplexing symbol in the wireless frame based on the reference pattern and adding a cyclic prefix to generate a synaesthesia frequency division multiplexing symbol;

[0043] A synaesthesia-integrated frequency-division-multiplexed signal is generated based on each synaesthesia-integrated frequency-division-multiplexed symbol.

[0044] In an exemplary embodiment of the present application, it further includes:

[0045] The demodulation and analysis unit is used to transmit the synaesthesia integrated frequency division multiplexing signal and receive the echo signal; demodulate the echo signal to obtain the perception data; and generate the perception result based on the synaesthesia integrated frequency division multiplexing signal and the perception data.

[0046] In an exemplary embodiment of the present application, the perceptual resource pattern is used to occupy the available bandwidth in a comb-like distribution.

[0047] According to one aspect of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, any one of the above methods is implemented.

[0048] According to one aspect of the present application, an electronic device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any one of the above methods by executing the executable instructions.

[0049] The exemplary embodiments of the present application may have some or all of the following beneficial effects:

[0050] In the method for generating a synaesthesia integrated signal provided in an example embodiment of the present application, the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource can be limited by the sensing resource pattern, and a corresponding chirp sensing reference signal sequence is generated. The chirp sensing reference signal sequence is applied to the sensing subcarrier position, and a pattern for generating a synaesthesia integrated frequency division multiplexing signal can be obtained, and a synaesthesia integrated signal generation process based on frequency division multiplexing is realized. Compared with the synaesthesia integration based on time division multiplexing, the synaesthesia integrated frequency division multiplexing signal in the present application includes both a communication part and a sensing part, and can realize the synaesthesia integration of the whole period. In addition, the resource monopoly in the frequency domain or time domain dimension can be avoided, the resource allocation is optimized, and the waste of resources is avoided. In addition, since the synaesthesia integration of the whole period can be realized, the perception performance can also be improved. In addition, since the chirp waveform is used, the perception advantage of the radar waveform is utilized, and the compatibility with the communication signal system is taken into account, so that the communication and perception signals can be modulated and transmitted in an integrated manner.

[0051] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0053] Figure 1 A flowchart of a method for generating a synaesthesia integrated signal according to an embodiment of the present application is schematically shown;

[0054] Figure 2 A schematic diagram of a perception resource pattern according to an embodiment of the present application is schematically shown;

[0055] Figure 3 A flowchart of a method for generating a synaesthesia integrated signal according to another embodiment of the present application is schematically shown;

[0056] Figure 4 A schematic diagram shows a structural block diagram of a synaesthesia integrated signal generating device according to an embodiment of the present application;

[0057] Figure 5 The structure diagram of a computer system suitable for implementing an electronic device of an embodiment of the present application is schematically shown. DETAILED DESCRIPTION

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present application will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical solutions of the present application may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known technical solutions are not shown or described in detail to avoid obscuring various aspects of the present application.

[0059] In addition, the accompanying drawings are only schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0060] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.

[0061] See also Figure 1 , Figure 1 The flowchart of the method for generating a synaesthesia integrated signal according to an embodiment of the present application is schematically shown. Figure 1 As shown, the synaesthesia integrated signal generation method may include: steps S110 to S140.

[0062] Step S110: Acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit sensing subcarrier positions within a frequency division multiplexing symbol corresponding to a sensing resource.

[0063] Step S120: Generate a chirp perception reference signal sequence according to the perception resource pattern.

[0064] Step S130: Apply the chirp sensing reference signal sequence to the sensing subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern.

[0065] Step S140: Generate a synaesthesia integrated frequency division multiplexing signal based on the reference pattern.

[0066] Implementation Figure 1The method shown can limit the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource through the sensing resource pattern, and generate the corresponding chirp sensing reference signal sequence, and apply the chirp sensing reference signal sequence to the sensing subcarrier position, and obtain a pattern for generating a synaesthesia integrated frequency division multiplexing signal, and realize the synaesthesia integrated signal generation process based on frequency division multiplexing. Compared with the synaesthesia integration based on time division multiplexing, the synaesthesia integrated frequency division multiplexing signal in this application includes both the communication part and the perception part, and can realize the synaesthesia integration of the whole time period. In addition, it is also possible to avoid the resource monopoly in the frequency domain or time domain dimension, optimize the resource allocation, and avoid resource waste. In addition, since the synaesthesia integration of the whole time period can be realized, the perception performance can also be improved. In addition, since the chirp waveform is used, the perception advantage of the radar waveform is utilized, and the compatibility with the communication signal system is taken into account, so that the communication and perception signals can be modulated and transmitted in an integrated manner.

[0067] Next, the above steps of this exemplary embodiment are described in more detail.

[0068] In step S110, a sensing resource pattern is obtained; wherein the sensing resource pattern is used to limit sensing subcarrier positions within a frequency division multiplexing symbol corresponding to the sensing resource.

[0069] Specifically, in the synaesthesia integration system, the technology commonly used is time division multiplexing technology, but time division multiplexing technology will cause communication interruption in part of the time. In addition, frequency division multiplexing can only use part of the bandwidth. However, there is no synaesthesia integration technology in the related art that can both continuously communicate and use the entire bandwidth.

[0070] Based on this, the present application considers that a frequency-domain combed perception reference signal resource pattern can be configured, a chirp perception reference signal sequence is generated according to the chirp waveform, and the frequency-division multiplexing symbol carries the chirp perception reference signal sequence. The chirp perception reference signal sequence can be frequency-division multiplexing signal modulated and transmitted together with the communication data. In this way, the interawareness integration technology that utilizes the entire bandwidth and maintains continuous communication can be realized, avoiding the resource monopoly in the frequency domain or time domain dimensions.

[0071] Based on this, the present application defines a perceptual resource pattern that includes perceptual subcarrier positions within a frequency division multiplexing symbol corresponding to a perceptual resource, and the perceptual resource pattern is used to occupy the available bandwidth in a comb-like distribution, specifically occupying multiple subcarriers in the frequency domain and one or more frequency division multiplexing symbols (OFDM symbols) in the time domain. Among them, one OFDM symbol is one frequency division multiplexing symbol.

[0072] As an optional embodiment, it also includes:

[0073] The sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource is determined according to the sensing available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

[0074] It can be seen that by implementing this optional embodiment, the position of the perception subcarrier can be determined for each frequency division multiplexing symbol so that it can carry the perception resource, thereby realizing the synaesthesia integration of frequency division multiplexing.

[0075] Specifically, the perceptual available bandwidth can be set to B and the OFDM symbol duration to T s =1 / Δf, the number of subcarriers in the bandwidth is N=BT s , the sampling rate is F s , then the number of sampling points in an OFDM symbol is N s =F s T s Based on this, the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource can be determined according to the sensing available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

[0076] The subcarrier index set can be represented as S = {i, i = 0, 1, ..., N-1}, and the subcarrier position can be represented as f 0 +SΔf,f 0 is the initial frequency, and Δf is the subcarrier spacing. If the sensing resources in the symbol are configured in a Comb-M comb shape, the number of sensing subcarriers is N / M; where M is the OFDM symbol time, and the number of sensing signal sampling points in one OFDM symbol time is The set of perception signal subcarrier index numbers is m∈{0,1,…,M-1}, m is the index of the initial sensing subcarrier, and the position of all sensing subcarriers in the OFDM symbol is f 0 +S r Δf.

[0077] For example, if there is a 100 MHz bandwidth in the 3.5 GHz band, the frequency range is 3.5 GHz to 3.6 GHz, the subcarrier spacing is Δf = 30 KHz, and the symbol duration is T s =1 / Δf, then the number of subcarriers in the bandwidth is N=BT s ; The sampling rate is F s , the number of frequency domain resource blocks is 273, and the number of subcarriers is 3276.

[0078] Then, the perception resource pattern includes the 1st and 8th symbols in time slot 0 in the time domain, and the frequency domain occupies subcarrier 0 in a Comb-6 comb pattern, occupying a total of 546 subcarriers. Figure 2 , Figure 2 The following schematically shows a schematic diagram of a perception resource pattern according to an embodiment of the present application. Figure 2 As shown in FIG. 1 , the symbol occupancy corresponding to the sensing resource in a time slot is shown, where an infinite frame contains multiple time slots. In the infinite frame, each time slot is allocated according to Figure 2 The case shown determines the symbol placeholder.

[0079] In step S120, a chirp perception reference signal sequence is generated according to the perception resource pattern.

[0080] Specifically, chirp is the phenomenon that the frequency of a signal changes over time. It is a characterization of the properties of a pulse in the time domain. The frequency components do not arrive at the same time in a pulse period, that is, the different frequency components of the laser pulse are not synchronized in the time domain. The main reason for the chirp is that the refractive index of the medium changes dynamically due to the influence of dynamic electrical signal modulation, which causes the phase of the optical signal propagating in the medium to change. This phase change is directly reflected in the dynamic change of the output optical signal frequency. The present application can generate a chirp perception reference signal sequence corresponding to the perception resource pattern based on the chirp waveform.

[0081] As an optional embodiment of step S120, generating a chirp perception reference signal sequence according to the perception resource pattern includes:

[0082] Step S1201: Generate a reference sequence according to the sensing resource pattern, the chirp rate, the sampling rate, the number of sampling points in the frequency division multiplexing symbol, the duration of the sensing chirp signal, and the duration of the frequency division multiplexing symbol;

[0083] Step S1202: complement the end of the reference sequence to obtain a sequence of target length;

[0084] Step S1203: Perform fast Fourier transform on the target length sequence to obtain a chirp perception reference signal sequence.

[0085] It can be seen that by implementing this optional embodiment, a chirp perception reference signal sequence can be determined based on the perception resource pattern, chirp rate, sampling rate, number of sampling points in a frequency division multiplexing symbol, perception chirp signal duration, and frequency division multiplexing symbol duration, which can be helpful in accurately determining a frequency division multiplexing signal with integrated synaesthesia.

[0086] Specifically, for each OFDM symbol corresponding to a sensing resource, the sensing resource pattern, the chirp rate K r =BM / T s , sampling rate F s , the number of sampling points in the frequency division multiplexing symbol, the duration of the perceived chirp signal T s / M, frequency division multiplexing symbol duration M, bandwidth B, generate reference sequence fr (n), Furthermore, the reference sequence f r (n),

[0087] Perform end complement to obtain the target length N s The sequence f′ r (n), f′ r =[f r (n),zeros(1,N s -N s / M)]; the trailing complement may be 0 or other values, which is not limited in the present embodiment. r (n) sequence is subjected to fast Fourier transform to obtain the chirp perception reference signal sequence f′ r (k), k=0,1,…,N s .

[0088] In step S130, the chirp perception reference signal sequence is applied to the perception subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern.

[0089] As an optional embodiment of step S130, applying the chirp perception reference signal sequence to the perception subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern includes:

[0090] Step S1301: for each frequency division multiplexing symbol in the perception resource pattern, each element in the chirp perception reference signal sequence is respectively allocated to a corresponding perception subcarrier position until all frequency division multiplexing symbols are processed to obtain a reference pattern.

[0091] It can be seen that by implementing this optional embodiment, a reference pattern based on a chirp waveform can be obtained based on processing each frequency division multiplexing symbol, thereby facilitating subsequent determination of a synaesthesia integrated frequency division multiplexing signal.

[0092] Specifically, each OFDM symbol contains multiple perception subcarrier positions, and for each OFDM symbol, each element of the chirp perception reference signal sequence can be applied to each perception subcarrier position. Repeating the above steps for each OFDM symbol can obtain a reference pattern that can be used to generate frequency division multiplexing for synaesthesia integration.

[0093] In step S140 , a synaesthesia-integrated frequency-division multiplexing signal is generated based on the reference pattern.

[0094] As an optional embodiment of step S140, generating a synaesthesia integrated frequency division multiplexing signal based on a reference pattern includes:

[0095] Step S1401: performing inverse Fourier transform on each frequency division multiplexing symbol in the wireless frame based on the reference pattern and adding a cyclic prefix to generate a synaesthesia frequency division multiplexing symbol;

[0096] Step S1402: Generate a synaesthesia-integrated frequency division multiplexing signal based on each synaesthesia-integrated frequency division multiplexing symbol.

[0097] It can be seen that by implementing this optional embodiment, a synaesthesia-integrated frequency-division multiplexing signal including both a communication part and a perception part can be generated.

[0098] Specifically, the communication data is carried on the frequency and symbol resources other than the sensing resources, and the subcarrier index set that can be used to carry the communication data is S c =S\S r , a new sequence f(k) can be constructed based on the reference pattern and the subcarrier index set that can be used to carry communication data, Among them, the part of f(k)=0 can be replaced by the communication data used for communication, and then f′(k) can be obtained, and f′(k) is the discrete spectrum of the synaesthesia OFDM symbol. Performing inverse Fourier transform on f′(k) and adding a cyclic prefix can generate a synaesthesia frequency division multiplexing symbol.

[0099] As an optional embodiment, it also includes:

[0100] Transmitting interaceptive integrated frequency division multiplexing signals and receiving echo signals;

[0101] Demodulate the echo signal to obtain the sensing data;

[0102] The perception results are generated based on the integrated frequency division multiplexing signal and the perception data.

[0103] It can be seen that by implementing this optional embodiment, nearby objects can be sensed based on the synaesthesia integrated frequency division multiplexing signal, and at the same time, the communication function is not affected.

[0104] Specifically, the base station may transmit a synaesthesia integrated frequency division multiplexing signal and receive an echo signal, or base station A may transmit a synaesthesia integrated frequency division multiplexing signal and trigger base station B to receive an echo signal, which is not limited in the embodiment of the present application. Among them, for each synaesthesia OFDM symbol in the received echo signal, the perception subcarrier index S may be extracted. r The corresponding discrete spectrum data is demodulated to obtain the perception data. Based on the synaesthesia integrated frequency division multiplexing signal and the perception data, a perception result representing the distance of nearby objects can be generated.

[0105] See also Figure 3 , Figure 3The flowchart of the method for generating a synaesthesia integrated signal according to another embodiment of the present application is schematically shown. Figure 3 As shown, the synaesthesia integrated signal generation method includes: steps S310 to S370.

[0106] Step S310: Determine the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource according to the sensing available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

[0107] Step S320: Acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit the sensing subcarrier position within the frequency division multiplexing symbol corresponding to the sensing resource.

[0108] Step S330: Generate a reference sequence according to the perception resource pattern, chirp rate, sampling rate, number of sampling points in a frequency division multiplexing symbol, duration of the perception chirp signal, and duration of the frequency division multiplexing symbol, perform end complement on the reference sequence to obtain a target length sequence, and then perform fast Fourier transform on the target length sequence to obtain a chirp perception reference signal sequence.

[0109] Step S340: for each frequency division multiplexing symbol in the perception resource pattern, each element in the chirp perception reference signal sequence is respectively allocated to a corresponding perception subcarrier position until all frequency division multiplexing symbols are processed to obtain a reference pattern.

[0110] Step S350: Perform inverse Fourier transform on each frequency division multiplexing symbol in the wireless frame based on the reference pattern and add a cyclic prefix to generate a synaesthesia frequency division multiplexing symbol.

[0111] Step S360: Generate a synaesthesia-integrated frequency division multiplexing signal based on each synaesthesia-integrated frequency division multiplexing symbol.

[0112] Step S370: transmitting a synaesthesia integrated frequency division multiplexing signal, receiving an echo signal, demodulating the echo signal, obtaining perception data, and then generating a perception result based on the synaesthesia integrated frequency division multiplexing signal and the perception data.

[0113] It should be noted that steps S310 to S370 are Figure 1 The steps shown correspond to the embodiments thereof. For the specific implementation of steps S310 to S370, please refer to Figure 1 The steps and embodiments shown are not described in detail here.

[0114] It can be seen that implementation Figure 3The method shown can limit the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource through the sensing resource pattern, and generate the corresponding chirp sensing reference signal sequence, and apply the chirp sensing reference signal sequence to the sensing subcarrier position, and obtain a pattern for generating a synaesthesia integrated frequency division multiplexing signal, and realize the synaesthesia integrated signal generation process based on frequency division multiplexing. Compared with the synaesthesia integration based on time division multiplexing, the synaesthesia integrated frequency division multiplexing signal in this application includes both the communication part and the perception part, and can realize the synaesthesia integration of the whole time period. In addition, it is also possible to avoid the resource monopoly in the frequency domain or time domain dimension, optimize the resource allocation, and avoid resource waste. In addition, since the synaesthesia integration of the whole time period can be realized, the perception performance can also be improved. In addition, since the chirp waveform is used, the perception advantage of the radar waveform is utilized, and the compatibility with the communication signal system is taken into account, so that the communication and perception signals can be modulated and transmitted in an integrated manner.

[0115] See also Figure 4 , Figure 4 The structure block diagram of the synaesthesia integrated signal generating device according to an embodiment of the present application is schematically shown. Figure 1 The method shown corresponds to Figure 4 As shown, the synaesthesia integrated signal generating device 400 includes:

[0116] A pattern acquisition unit 401 is used to acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit the sensing subcarrier position within the frequency division multiplexing symbol corresponding to the sensing resource;

[0117] A sequence generating unit 402, configured to generate a chirp sensing reference signal sequence according to a sensing resource pattern;

[0118] A pattern generating unit 403, configured to apply the chirp sensing reference signal sequence to the sensing subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern;

[0119] The signal generating unit 404 is used to generate a synaesthesia integrated frequency division multiplexing signal based on the reference pattern.

[0120] The sensing resource pattern is used to occupy the available bandwidth in a comb-like distribution.

[0121] It can be seen that implementation Figure 4The device shown can limit the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource through the sensing resource pattern, and generate a corresponding chirp sensing reference signal sequence, and apply the chirp sensing reference signal sequence to the sensing subcarrier position, and can obtain a pattern for generating a synaesthesia integrated frequency division multiplexing signal, and realize the synaesthesia integrated signal generation process based on frequency division multiplexing. Compared with the synaesthesia integration based on time division multiplexing, the synaesthesia integrated frequency division multiplexing signal in this application includes both the communication part and the perception part, and can realize the synaesthesia integration of the whole time period. In addition, it is also possible to avoid the resource monopoly in the frequency domain or time domain dimension, optimize the resource allocation, and avoid resource waste. In addition, since the synaesthesia integration of the whole time period can be realized, the perception performance can also be improved. In addition, since the chirp waveform is used, the perception advantage of the radar waveform is utilized, and the compatibility with the communication signal system is taken into account, so that the communication and perception signals can be modulated and transmitted in an integrated manner.

[0122] In an exemplary embodiment of the present application, it further includes:

[0123] The perception subcarrier position determination unit is used to determine the perception subcarrier position in the frequency division multiplexing symbol corresponding to the perception resource according to the perception available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

[0124] It can be seen that by implementing this optional embodiment, the position of the perception subcarrier can be determined for each frequency division multiplexing symbol so that it can carry the perception resource, thereby realizing the synaesthesia integration of frequency division multiplexing.

[0125] In an exemplary embodiment of the present application, the sequence generating unit 402 generates a chirp perception reference signal sequence according to the perception resource pattern, including:

[0126] Generate a reference sequence according to a sensing resource pattern, a chirp rate, a sampling rate, a number of sampling points in a frequency division multiplexing symbol, a duration of a sensing chirp signal, and a duration of a frequency division multiplexing symbol;

[0127] Complement the end of the reference sequence to obtain a sequence of target length;

[0128] Perform fast Fourier transform on the target length sequence to obtain the chirp perception reference signal sequence.

[0129] It can be seen that by implementing this optional embodiment, a chirp perception reference signal sequence can be determined based on the perception resource pattern, chirp rate, sampling rate, number of sampling points in a frequency division multiplexing symbol, perception chirp signal duration, and frequency division multiplexing symbol duration, which can be helpful in accurately determining a frequency division multiplexing signal with integrated synaesthesia.

[0130] In an exemplary embodiment of the present application, the pattern generation unit 403 applies the chirp perception reference signal sequence to the perception subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern, including:

[0131] For each frequency division multiplexing symbol in the perception resource pattern, each element in the chirp perception reference signal sequence is respectively allocated to a corresponding perception subcarrier position until all frequency division multiplexing symbols are processed to obtain a reference pattern.

[0132] It can be seen that by implementing this optional embodiment, a reference pattern based on a chirp waveform can be obtained based on processing each frequency division multiplexing symbol, thereby facilitating subsequent determination of a synaesthesia integrated frequency division multiplexing signal.

[0133] In an exemplary embodiment of the present application, the signal generating unit 404 generates a synaesthesia integrated frequency division multiplexing signal based on a reference pattern, including:

[0134] Performing inverse Fourier transform on each frequency division multiplexing symbol in the wireless frame based on the reference pattern and adding a cyclic prefix to generate a synaesthesia frequency division multiplexing symbol;

[0135] A synaesthesia-integrated frequency-division-multiplexed signal is generated based on each synaesthesia-integrated frequency-division-multiplexed symbol.

[0136] It can be seen that by implementing this optional embodiment, a synaesthesia-integrated frequency-division multiplexing signal including both a communication part and a perception part can be generated.

[0137] In an exemplary embodiment of the present application, it further includes:

[0138] The demodulation and analysis unit is used to transmit the synaesthesia integrated frequency division multiplexing signal and receive the echo signal; demodulate the echo signal to obtain the perception data; and generate the perception result based on the synaesthesia integrated frequency division multiplexing signal and the perception data.

[0139] It can be seen that by implementing this optional embodiment, nearby objects can be sensed based on the synaesthesia integrated frequency division multiplexing signal, and at the same time, the communication function is not affected.

[0140] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0141] See also Figure 5 , Figure 5 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown.

[0142] It should be noted that Figure 5 The computer system 500 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0143] like Figure 5 As shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 502 or a program loaded from a storage part 508 into a random access memory (RAM) 503. Various programs and data required for system operation are also stored in the RAM 503. The CPU 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0144] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed, so that a computer program read therefrom is installed into the storage section 508 as needed.

[0145] In particular, according to an embodiment of the present application, the process described with reference to the flowchart above can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 509, and / or installed from a removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the method and apparatus of the present application are executed.

[0146] The exemplary embodiments of the present disclosure also provide a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the above-mentioned synaesthesia integrated signal generation method is implemented.

[0147] In one embodiment, the computer program product may be a tangible product containing a computer program, such as a computer-readable storage medium storing a computer program. The readable storage medium may be a storage medium based on electrical, magnetic, optical, electromagnetic, infrared, or other signals, including but not limited to: random access memory (RAM), read-only memory (ROM), magnetic tape, floppy disk, flash memory (Flash), mechanical hard disk (HDD), solid-state drive (SSD), and the like. Exemplarily, the computer program product may be implemented as a non-volatile storage medium storing a computer program, such as a read-only memory, a NAND flash memory, and the like.

[0148] In one embodiment, the computer program product may be an intangible product including a computer program. Exemplarily, the computer program product may be implemented as a virtual digital product, such as a digital file storing an executable file, an installation package, etc. of the computer program.

[0149] The code of the computer program can be written in one or more programming languages. Programming languages ​​such as C language, Java, C++, etc. The program code can be executed entirely on the user computing device, or partially on the user computing device, or as a separate software package, or partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device through any type of network, such as a local area network (LAN), a wide area network (WAN), etc., or can be connected to an external computing device (e.g., an Internet connection provided by an operator).

[0150] Computer programs can be carried or transmitted through electrical, magnetic, optical, electromagnetic, infrared and other signals. Electronic devices can convert signals carrying computer programs into digital signals, thereby running computer programs. When a computer program runs on an electronic device, its code is used to enable the electronic device to execute (more specifically, the processor of the electronic device can execute) the method steps of various exemplary embodiments of the present disclosure, such as the above-mentioned synaesthesia integrated signal generation method, which includes the following steps: obtaining a perception resource pattern; wherein the perception resource pattern is used to limit the perception subcarrier position within the frequency division multiplexing symbol corresponding to the perception resource; generating a chirp perception reference signal sequence according to the perception resource pattern; applying the chirp perception reference signal sequence to the perception subcarrier position within each frequency division multiplexing symbol to obtain a reference pattern; generating a synaesthesia integrated frequency division multiplexing signal based on the reference pattern.

[0151] By executing the above method steps through a computer program, the sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource can be limited by the sensing resource pattern, and a corresponding chirp sensing reference signal sequence can be generated. The chirp sensing reference signal sequence is applied to the sensing subcarrier position, and a pattern for generating a synaesthesia integrated frequency division multiplexing signal can be obtained, and a synaesthesia integrated signal generation process based on frequency division multiplexing is realized. Compared with the synaesthesia integration based on time division multiplexing, the synaesthesia integrated frequency division multiplexing signal in this application includes both a communication part and a perception part, and can realize the synaesthesia integration of the whole period. In addition, the resource monopoly of the frequency domain or time domain dimension can be avoided, the resource allocation is optimized, and the waste of resources is avoided. In addition, since the synaesthesia integration of the whole period can be realized, the perception performance can also be improved. In addition, since the chirp waveform is utilized, the perception advantage of the radar waveform is utilized, and the compatibility with the communication signal system is taken into account, so that the communication and perception signals can be modulated and transmitted in an integrated manner.

[0152] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0153] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0154] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the claims.

Claims

1. A method for generating a synaesthesia integrated signal, characterized in that: include: Acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit the sensing subcarrier position within the frequency division multiplexing symbol corresponding to the sensing resource; generating a chirp sensing reference signal sequence according to the sensing resource pattern; Applying the chirp perception reference signal sequence to the perception subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern; A synaesthesia-integrated frequency-division multiplexing signal is generated based on the reference pattern.

2. The method according to claim 1, characterized in that Also includes: The sensing subcarrier position in the frequency division multiplexing symbol corresponding to the sensing resource is determined according to the sensing available bandwidth, the frequency division multiplexing symbol duration, the subcarrier spacing, the number of subcarriers in the bandwidth, and the sampling rate.

3. The method according to claim 1, characterized in that Generating a chirp sensing reference signal sequence according to the sensing resource pattern includes: Generate a reference sequence according to a sensing resource pattern, a chirp rate, a sampling rate, a number of sampling points in a frequency division multiplexing symbol, a duration of a sensing chirp signal, and a duration of a frequency division multiplexing symbol; Complementing the end of the reference sequence to obtain a sequence of target length; Performing a fast Fourier transform on the target length sequence to obtain a chirp perception reference signal sequence.

4. The method according to claim 1, characterized in that: Applying the chirp sensing reference signal sequence to the sensing subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern includes: For each frequency division multiplexing symbol in the perception resource pattern, each element in the chirp perception reference signal sequence is respectively allocated to a corresponding perception subcarrier position until each frequency division multiplexing symbol is processed to obtain a reference pattern.

5. The method according to claim 1, characterized in that Generating a synaesthesia integrated frequency division multiplexing signal based on the reference pattern includes: Performing inverse Fourier transform on each frequency division multiplexing symbol in the wireless frame based on the reference pattern and adding a cyclic prefix to generate a synaesthesia frequency division multiplexing symbol; A synaesthesia-integrated frequency-division-multiplexed signal is generated based on each synaesthesia-integrated frequency-division-multiplexed symbol.

6. The method according to claim 1, characterized in that Also includes: Transmitting the interaural integrated frequency division multiplexing signal and receiving the echo signal; Demodulating the echo signal to obtain sensing data; A perception result is generated based on the synaesthesia integrated frequency division multiplexing signal and the perception data.

7. The method according to any one of claims 1 to 6, characterized in that: The perceptual resource pattern is used to occupy available bandwidth in a comb-like distribution.

8. A synaesthesia integrated signal generating device, characterized in that: include: A pattern acquisition unit, configured to acquire a sensing resource pattern; wherein the sensing resource pattern is used to limit a sensing subcarrier position within a frequency division multiplexing symbol corresponding to a sensing resource; A sequence generating unit, configured to generate a chirp sensing reference signal sequence according to the sensing resource pattern; A pattern generating unit, configured to apply the chirp perception reference signal sequence to the perception subcarrier position in each frequency division multiplexing symbol to obtain a reference pattern; A signal generating unit is used to generate a synaesthesia integrated frequency division multiplexing signal based on the reference pattern.

9. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

10. An electronic device, characterized in that: include: processor; as well as A memory, configured to store executable instructions of the processor; The processor is configured to perform the method of any one of claims 1 to 7 by executing the executable instructions.

Images