Waveform generation method and apparatus based on integrated sensing and communication, and electronic device and medium

Abstract

Disclosed in the present application are a waveform generation method and apparatus based on integrated sensing and communication (ISAC), and an electronic device and a medium. By means of applying the technical solution of the present application, association relationships between communication sensing and communication performance, an OFDM frame structure, and parameters of a T-ISAC system can be established for the T-ISAC system by constructing a sparse MIMO transceiving array model and an integrated OFDM transmitted-signal and received-echo model for the T-ISAC system. Moreover, a method for calculating a feasible region of an OFDM frame structure parameter is provided for the T-ISAC system in view of 6G application scenario requirements and the association relationships. Therefore, an integrated waveform is constructed.

Description

Communication-aware integrated waveform generation method, device, electronic device, and medium Technical Field

[0001] The present application relates to terahertz data processing technology, and in particular to a waveform generation method, device, electronic device and medium that integrates communication and perception. Background Art

[0002] As global communication data volumes continue to grow, 5G microwave and millimeter wave frequency bands are no longer able to support the high-capacity and speed demands, forcing 6G to evolve to higher frequency bands. THz spectrum resources are abundant, and its ultra-large bandwidth supports ultra-high speeds while also achieving finer distance resolution. Higher frequencies also improve speed resolution, making it a key technology for integrated 6G communication and perception.

[0003] In related technologies, to meet the needs of THz long-distance communication and perception business scenarios, MIMO technology must be used to combat the problems of low THz transmission power and high path loss. Given that the spacing between elements in traditional uniform linear arrays is fixed, a sparse MIMO array is used to increase the array's degrees of freedom to form a virtual aperture, which can further improve echo detection capabilities and angular resolution performance. In addition, the current 3GPP standard definition of the OFDM frame structure has not yet been extended to the THz frequency band, nor has it considered perception factors. In addition, the existing research on the parameterization of the interawareness performance of integrated OFDM waveforms is limited to single-antenna ideal systems and low-order modulation methods, and the characterization results are incomplete. This results in a lack of theoretical guidance for the design of THz integrated waveforms.

[0004] Therefore, how to construct an integrated waveform design method is the key to realizing the design of terahertz communication and perception integration (T-ISAC) system.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a waveform generation method, device, electronic device and medium for integrated communication perception. The embodiments of the present application are used to solve the problem existing in the related art that an integrated waveform cannot be generated for the T-ISAC system.

[0007] According to one aspect of an embodiment of the present application, a communication-aware integrated waveform generation method is provided, which is applied to a T-ISAC system including a sparse MIMO linear array. The method includes:

[0008] During communication between the T-ISAC system and the user equipment using the sparse MIMO linear array, obtaining a downlink integrated signal received by the user equipment and obtaining an integrated signal echo received by the T-ISAC system;

[0009] Establishing, based on the downlink integrated signal, a first association relationship between downlink communication performance of the user equipment and the T-ISAC system parameters for characterizing the downlink communication performance of the user equipment; and establishing, based on the integrated signal echo, a second association relationship between the T-ISAC system parameters for characterizing the perceived communication performance of the user equipment and the T-ISAC system parameters, where the system parameters are system operating parameters required for constructing the integrated waveform;

[0010] Based on the first association relationship and the second association relationship, an OFDM frame structure design of the T-ISAC system is obtained, and based on the OFDM frame structure design, the T-ISAC system is controlled to generate an integrated waveform.

[0011] Optionally, in another embodiment of the above method of the present application, obtaining the integrated signal echo received by the T-ISAC system includes:

[0012] Acquire the integrated signal echo received by the T-ISAC system and reflected by the user equipment.

[0013] Optionally, in another embodiment of the method of the present application, the constructing, based on the downlink integrated signal, a first association relationship for characterizing the downlink communication performance of the user equipment and the T-ISAC system parameter includes:

[0014] Determining, based on the communication information carried by the downlink integrated signal, a first sub-association reflecting the effective transmission rate of the downlink transmission channel and the T-ISAC system parameter, a second sub-association reflecting the power spectral density ratio and the T-ISAC system parameter, a third sub-association reflecting the bit error rate and the T-ISAC system parameter, and a fourth sub-association reflecting the communication signal-to-noise ratio and the T-ISAC system parameter;

[0015] The first sub-association relationship, the second sub-association relationship, the third sub-association relationship, and the fourth sub-association relationship are taken as the first association relationship.

[0016] Optionally, in another embodiment of the method of the present application, constructing, based on the integrated signal echo, a second correlation relationship for characterizing the perceived communication performance of the user equipment and the T-ISAC system parameter includes:

[0017] Determining, based on the communication information carried by the integrated signal echo, a fifth sub-association relationship between a distance indicator of the user equipment and the T-ISAC system, a sixth sub-association relationship between a moving speed indicator and the T-ISAC system, a seventh sub-association relationship between a relative angle indicator and the T-ISAC system, and an eighth sub-association relationship between a total system loss and the T-ISAC system;

[0018] The fifth sub-association relationship, the sixth sub-association relationship, the seventh sub-association relationship, and the eighth sub-association relationship are used as the second association relationship.

[0019] Optionally, in another embodiment of the method of the present application, obtaining the OFDM frame structure design of the T-ISAC system based on the first association relationship and the second association relationship includes:

[0020] Obtaining 6G application scenario requirements, and determining a subcarrier spacing, a number of subcarriers, a cyclic prefix ratio, and a number of symbols of the T-ISAC system based on the 6G application scenario requirements, the first association relationship, and the second association relationship;

[0021] The OFDM frame structure design is determined based on the subcarrier spacing, number of subcarriers, cyclic prefix ratio and number of symbols of the T-ISAC system.

[0022] Optionally, in another embodiment of the above method of the present application, determining the subcarrier spacing, number of subcarriers, cyclic prefix ratio, and number of symbols of the T-ISAC system based on the 6G application scenario requirements, the first association relationship, and the second association relationship includes:

[0023] While meeting the requirements of the 6G application scenario, based on the first association relationship and the second association relationship, the parameter feasible domain of the OFDM frame structure is calculated, wherein the parameter feasible domain includes the subcarrier spacing, the number of subcarriers, the cyclic prefix ratio and the number of symbols.

[0024] According to another aspect of the embodiments of the present application, a waveform generation device for integrating communication and perception is provided, which is applied to a T-ISAC system including a sparse MIMO linear array, including:

[0025] an acquisition module configured to acquire, during communication between the T-ISAC system and the user equipment using the sparse MIMO linear array, a downlink integrated signal received by the user equipment and an integrated signal echo received by the T-ISAC system;

[0026] a construction module configured to construct, based on the downlink integrated signal, a first association relationship between the downlink communication performance of the user equipment and the T-ISAC system parameters; and, based on the integrated signal echo, to construct a second association relationship between the perceived communication performance of the user equipment and the T-ISAC system parameters, where the system parameters are system operating parameters required for constructing the integrated waveform;

[0027] The generation module is configured to obtain an OFDM frame structure design of the T-ISAC system based on the first association relationship and the second association relationship, and control the T-ISAC system to generate an integrated waveform based on the OFDM frame structure design.

[0028] According to another aspect of the embodiments of the present application, an electronic device is provided, including:

[0029] a memory for storing executable instructions; and

[0030] A display is used to execute the executable instructions with the memory to complete the operation of any of the above-mentioned communication perception integrated waveform generation methods.

[0031] According to another aspect of an embodiment of the present application, a computing device readable storage medium is provided for storing instructions readable by the computing device, wherein the instructions, when executed, perform the operations of any of the above-mentioned communication perception integrated waveform generation methods.

[0032] In the present application, in the process of the T-ISAC system communicating with the user equipment using a sparse MIMO linear array, the downlink integrated signal received by the user equipment is obtained, and the integrated signal echo received by the T-ISAC system is obtained; based on the downlink integrated signal, a first correlation relationship is constructed for characterizing the downlink communication performance of the user equipment and the T-ISAC system parameters; and, based on the integrated signal echo, a second correlation relationship is constructed for characterizing the perceived communication performance of the user equipment and the T-ISAC system parameters, where the system parameters are the system operating parameters required for constructing the integrated waveform; based on the first correlation relationship and the second correlation relationship, the OFDM frame structure design of the T-ISAC system is obtained, and based on the OFDM frame structure design, the T-ISAC system is controlled to generate an integrated waveform.

[0033] By applying the technical solution of this application, a sparse MIMO transceiver array model and an integrated OFDM transmit signal and receive echo model can be constructed for the T-ISAC system to establish a correlation between communication perception and performance, the OFDM frame structure, and various T-ISAC system parameters. Combining this correlation with the requirements of 6G application scenarios, a feasible domain calculation method for OFDM frame structure parameters is provided for the T-ISAC system, thereby achieving the construction of an integrated waveform.

[0034] The technical solution of the present application is further described in detail below using multiple embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0036] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0037] FIG1 shows a schematic diagram of a system architecture for waveform generation with integrated communication and perception provided by an embodiment of the present application;

[0038] FIG2 shows a schematic diagram of the architecture of a T-ISAC system provided in an embodiment of the present application;

[0039] FIG3 shows a schematic flow chart of a waveform design method provided in an embodiment of the present application;

[0040] FIG4 shows a schematic structural diagram of an electronic device provided in one embodiment of the present application;

[0041] FIG5 shows a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0042] FIG6 shows a schematic diagram of a storage medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0044] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0045] The following description of at least one exemplary embodiment is merely illustrative in nature and is not intended to limit the present disclosure, its application, or uses.

[0046] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0047] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0048] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] The following describes a waveform generation method for integrated communication and perception according to an exemplary embodiment of the present application, in conjunction with Figures 1-3. It should be noted that the following application scenarios are provided solely to facilitate understanding of the spirit and principles of the present application, and the embodiments of the present application are not limited in this respect. Rather, the embodiments of the present application can be applied to any applicable scenario.

[0051] Furthermore, the present application also proposes a waveform generation method, device, moving vehicle and medium that integrates communication and perception.

[0052] FIG1 schematically illustrates a flow chart of a waveform generation method for integrating communication and perception according to an embodiment of the present application. As shown in FIG1 , the method is applied to a T-ISAC system including a sparse MIMO linear array, and includes:

[0053] S101 , during communication between a T-ISAC system and a user equipment using a sparse MIMO linear array, obtaining a downlink integrated signal received by the user equipment and obtaining an integrated signal echo received by the T-ISAC system.

[0054] In one approach, the T-ISAC system in the embodiments of the present application can employ a MIMO linear array with separate transmit and receive antennas. The antenna spacing is configured to achieve a sparse transmit and compact receive pattern, creating a larger virtual aperture and achieving a smaller angular resolution. This overcomes the greater path loss associated with terahertz (THz) frequencies and increases the radar range of the T-ISAC system.

[0055] As an example, the antenna spacing setting in the MIMO linear array proposed in the embodiment of the present application is characterized by N Rx The compact receiving uniform linear array is composed of antennas, and the antenna spacing is half a wavelength, that is, By N Tx The sparse transmitting uniform linear array is composed of antennas, and the antenna spacing is the product of the receiving antenna spacing and the number of receiving antennas, that is,

[0056] In one approach, the T-ISAC system can transmit an integrated MIMO-OFDM signal, obtain sensing information through the echo, and implement downlink communication with the user equipment.

[0057] As an example, an integrated MIMO-OFDM signal proposed in an embodiment of the present application has one frame composed of multiple OFDM symbols.

[0058] In one embodiment, the T-ISAC system proposed in the embodiment of the present application can adopt a time division duplexing (TDD) system for the complete transceiver protocol, and can divide the integrated signal reception into three parts according to the type of received signal, namely, the uplink integrated signal received by the T-ISAC system from the user equipment, the downlink integrated signal received by the user equipment, and the integrated signal echo received by the T-ISAC system.

[0059] First, for the uplink integrated signal:

[0060] As shown in Figure 2, the T-ISAC system can use the first frame within a continuous time frame for uplink communication. For example, the T-ISAC system receives an uplink communication signal transmitted by a user device and, after processing it through channel estimation, channel equalization, OFDM demodulation, and QAM demodulation, recovers the communication information carried by the uplink signal, enabling uplink communication from the user to the T-ISAC system.

[0061] Secondly, for the downlink integrated signal:

[0062] As shown in Figure 2, the T-ISAC system can use the second frame within a continuous time frame for downlink communication. For example, a user device receives the integrated signal transmitted by the T-ISAC system and, after undergoing communication processing steps such as frequency and time synchronization, channel estimation, channel equalization, OFDM demodulation, and QAM demodulation, recovers the communication information carried by the integrated signal, enabling downlink communication from the T-ISAC system to the user device.

[0063] Furthermore, in the embodiment of the present application, a wireless frame of the downlink integrated signal consists of N sym OFDM symbols, the expression is:

[0064] in, is the transmit beamforming vector, N c is the number of subcarriers, A Tx (mN c +n) is the normalized complex modulation information carried in the mth OFDM symbol on the nth subcarrier, is the subcarrier spacing, T u and T CP are the effective symbol length and cyclic prefix (CP) length, T sym =T CP +T u is a complete OFDM symbol length, and rect(·) is a rectangular window function.

[0065] Thirdly, for the integrated signal echo:

[0066] As can be seen from Figure 2, the T-ISAC system can use the third frame in the continuous time for echo sensing. As an example, the T-ISAC system receives a broadband echo signal generated by the reflection of the integrated signal from the user equipment.

[0067] It is understandable that the THz integrated MIMO-OFDM signal has a large time-bandwidth product characteristic, that is, Therefore, the time stretching / compression effect of the Doppler effect on the echo signal cannot be ignored. Therefore, the baseband echo signal after down-conversion is:

[0068] Where a is the complex channel gain including THz path loss and user target reflection coefficient, and are the steering vectors of the transmitting array and the receiving array respectively, θ is the azimuth angle of the user target, is the two-way propagation delay, R is the distance between the user target and the T-ISAC system, is the Doppler shift, v is the relative radial velocity of the user target, is the Doppler stretch / compression factor, and n(t) is the baseband additive white Gaussian noise (AWGN).

[0069] In addition, the present application can also obtain the perception information of the user target after perception processing steps such as two-dimensional fast Fourier transform (2D-FFT) and global migration compensation (ACMC, all-cell migration compensation), including the distance from the T-ISAC system to the user target, the radial movement speed and azimuth angle of the user target relative to the T-ISAC system, to realize the T-ISAC system's perception of the user target, and the perception information is used to assist communication alignment.

[0070] Furthermore, after removing the CP, the T-ISAC system can also process the above baseband echo signal with F s =B OFDM Sampling is performed at the sampling rate, and the discrete signal obtained in each OFDM symbol time is:

[0071] in, is the normalization constant, is the ratio of CP to effective symbol length, μ=0,1,...,N c -1 is the sampling point number.

[0072] Furthermore, the embodiment of the present application can subject the above-mentioned discrete echo signals to perception processing steps such as 2D-FFT and ACMC to obtain perception information of the user device, including the distance from the T-ISAC system to the user device, the radial movement speed and azimuth angle of the user device relative to the T-ISAC system, so as to realize the T-ISAC system's perception of the user device, and the perception information is used to assist communication alignment.

[0073] S102: Based on the downlink integrated signal, a first association relationship is constructed between the downlink communication performance of the user equipment and the T-ISAC system parameters; and based on the integrated signal echo, a second association relationship is constructed between the perceived communication performance of the user equipment and the T-ISAC system parameters, where the system parameters are system operating parameters required for constructing the integrated waveform.

[0074] In one embodiment, the embodiment of the present application can analyze and derive a first correlation relationship between indicators such as the effective transmission rate, power spectrum density ratio, bit error rate, and communication signal-to-noise ratio of the downlink transmission channel based on the downlink integrated signal received by the user equipment to characterize the communication performance of the user equipment.

[0075] First, for the effective transmission rate:

[0076] In this embodiment of the present application, factors such as the number of spatial data streams and CP, time synchronization, and additional overhead caused by redundant coding are taken into consideration, and the first sub-correlation between the effective transmission rate actually experienced by the user equipment and the T-ISAC system parameters is obtained as follows:

[0077] Among them, B OFDM =N c Δf is the bandwidth of the integrated signal, is the number of synchronization symbols, T f =N sym T sym is the total frame length of a frame of integrated signal, is the coherence time of the channel, is the ratio of CP to effective symbol length, η is the code rate of redundant coding, and M is the modulation order.

[0078] Secondly, for the ratio of symbol energy to AWGN power spectral density:

[0079] Among them, the embodiment of the present application considers multi-antenna users. After completing the steps of frequency and time synchronization, channel estimation, channel equalization, etc., the frequency response estimation of the communication channel can be achieved, and then the second sub-correlation between the ratio of symbol energy to AWGN power spectral density and the T-ISAC system parameters can be calculated as follows:

[0080] Among them, P Tx is the transmission power of each transmitting antenna of the T-ISAC system, is the number of receiving antennas at the user end, N0 is the unilateral power spectrum density of AWGN, is the channel frequency response estimate for the nth subcarrier on the i_lth subchannel.

[0081] Thirdly, regarding the bit error rate:

[0082] Among them, the embodiment of the present application considers the use of multiple quadrature amplitude modulation (MQAM, multiple quadrature amplitude modulation), combined with Based on the theoretical expression of MQAM bit error rate, the third sub-correlation between bit error rate and T-ISAC system parameters can be approximated as follows:

[0083] Where Q(·) is the right-truncated function of the standard normal distribution.

[0084] Fourthly, regarding the communication signal-to-noise ratio:

[0085] Among them, since the molecular absorption loss and molecular absorption noise caused by the THz molecular absorption effect are considered on the basis of the free path loss model, the fourth sub-correlation between the communication signal-to-noise ratio and the T-ISAC system parameters, which is directly related to the communication distance, is:

[0086] Among them, G Tx is the transmission gain of each transmitting antenna of the T-ISAC system, is the receiving gain of each receiving antenna at the user end, G c is the redundancy coding gain, is the total noise power of the system, k B is the Boltzmann constant, T sys is the system AWGN temperature (K), is the molecular absorption noise temperature (K), T0 is the reference temperature (K), is the molecular absorption loss in communication (dB), γ(f) is the atmospheric attenuation coefficient related to frequency f (dB / m), R com is the communication distance (m), is the receiving noise factor at the user end.

[0087] In another embodiment, the embodiment of the present application can analyze and derive a second correlation relationship of indicators such as distance / speed / angle resolution, maximum perception distance / speed, and perception signal-to-noise ratio based on the integrated signal echo received by the T-ISAC system to characterize the perceived communication performance with the user equipment.

[0088] Fifth, for the distance indicator:

[0089] In this embodiment of the present application, an IFFT transform is performed on the delay inclusion term in the integrated echo signal to obtain a distance estimate, thereby obtaining a fifth sub-association relationship between the distance indicator of the user equipment and the T-ISAC system:

[0090] Furthermore, in order to avoid inter-symbol interference (ISI) during echo signal processing, the maximum tolerance distance is calculated as:

[0091] Furthermore, in order to avoid the range ambiguity problem in distance estimation, the maximum unambiguous distance is calculated as:

[0092] Sixth, regarding speed indicators:

[0093] In this embodiment, the ACMC transformation is performed on the Doppler inclusion term in the integrated echo signal to obtain a relative radial velocity estimate, thereby obtaining the sixth sub-correlation between the moving velocity index and the T-ISAC system:

[0094] Furthermore, the subcarrier spacing needs to be reasonably selected to overcome the inter-carrier interference caused by the Doppler effect, usually 10 times or more of the maximum Doppler frequency shift, that is, Δf ≥ 10f D，max , and then the maximum allowable relative radial velocity is obtained as:

[0095] Furthermore, in order to avoid velocity ambiguity in velocity estimation, the maximum unambiguous relative radial velocity is calculated as:

[0096] Seventh, regarding speed indicators:

[0097] In this embodiment of the present application, an FFT transform is performed on the azimuth angle inclusion term in the integrated echo signal to obtain an azimuth angle estimate, and then the seventh sub-correlation between the relative angle index and the T-ISAC system is obtained as follows:

[0098] Eighth, regarding the total system loss:

[0099] The embodiment of the present application considers various system losses in the actual T-ISAC system in the integrated echo signal, making the perceived communication performance characterization more accurate and complete. According to the bidirectional propagation characteristics of the echo signal, the molecular absorption loss (dB) it experiences is:

[0100] Wherein, is the operating range of the T-ISAC system (m).

[0101] Furthermore, the beam shape loss in the azimuth dimension under dense sampling is:

[0102] in, is the half-power beamwidth of sparse array MIMO, and f(θ) is the unidirectional voltage shape function describing different beam shapes.

[0103] Furthermore, the array scan loss generated when sensing the user equipment position can be calculated using the arrayscanloss function in the Matlab2022a radar toolbox. Its magnitude is related to the detection probability, false alarm probability, the number of symbols contained in the echo received by the T-ISAC system, the azimuth sensing range, and the fluctuation model of the user equipment.

[0104] Furthermore, considering the use of cell averaging-constant false alarm rate (CA-CFAR) in the perception process, the resulting constant false alarm rate loss (dB) can be approximately calculated as:

[0105] Among them, P fa is the false alarm probability, and L is the number of reference units used by the constant false alarm detector.

[0106] Furthermore, by adding up all the above losses, we can obtain the eighth sub-correlation between the total system loss in the perception process and the T-ISAC system:

[0107] Ninth, regarding the perceived signal-to-noise ratio:

[0108] Among them, the embodiment of the present application is based on the classical radar range equation, taking into account the virtual aperture gain formed by sparse array MIMO, the molecular absorption noise generated by the THz molecular absorption effect, and the total system loss. The ninth sub-correlation between the perceived signal-to-noise ratio directly related to the range and the T-ISAC system is:

[0109] in, is the receiving gain of each receiving antenna of the T-ISAC system, is the processing gain of the integrated OFDM signal generated by FFT and ACMC algorithms in echo processing, σ RCS is the radar cross-sectional area of ​​the user equipment, is the receiving noise figure of the T-ISAC system, is the total noise power of the system, is the molecular absorption noise temperature (K).

[0110] S103 : Obtain an OFDM frame structure design of the T-ISAC system based on the first association relationship and the second association relationship, and control the T-ISAC system to generate an integrated waveform based on the OFDM frame structure design.

[0111] In one embodiment, the embodiments of the present application can combine the basic requirements of OFDM frame structure design, the characterization results of communication perception communication performance, and the requirements of 6G application scenarios for synaesthesia performance to construct a group of inequalities and calculate the feasible domain of OFDM frame structure parameters.

[0112] As an example, according to the basic requirements of OFDM design, its frame structure parameters must meet the following requirements:

[0113] Among them, τ TMS is the RMS delay spread of the channel, is the coherence bandwidth of the channel.

[0114] Furthermore, in terms of perception, the first and second associations, as well as the requirements of 6G application scenarios for perceived communication performance, can be combined to construct OFDM frame structure parameters. For example, these include:

[0115] Where, ΔR req , Δv req 、R req 、|v| req These are the performance requirements of 6G application scenarios for distance resolution, speed resolution, perception distance, and relative radial perception speed, respectively. f ≤0.02 means that the OFDM frame length in typical applications should not be too long, generally not exceeding 20ms.

[0116] It can be understood that, as shown in FIG3, the embodiment of the present application can determine the parameter value that meets the range according to the needs of a certain 6G application scenario. And bring the parameter value that meets the requirements into the first association relationship and the second association relationship (the association relationship is used to characterize the synaesthesia performance and the relationship between the system operating parameters required for constructing the integrated waveform, and the system parameters are the system operating parameters required for constructing the integrated waveform), thereby obtaining the appropriate system operating parameters required for constructing the integrated waveform (for example, including subcarrier spacing, number of subcarriers, cyclic prefix ratio, and number of symbols, etc.).

[0117] By applying the technical solution of this application, a sparse MIMO transceiver array model and an integrated OFDM transmit signal and receive echo model can be constructed for the T-ISAC system to establish a correlation between communication perception and performance, the OFDM frame structure, and various T-ISAC system parameters. Combining this correlation with the requirements of 6G application scenarios, a feasible domain calculation method for OFDM frame structure parameters is provided for the T-ISAC system, thereby achieving the construction of an integrated waveform.

[0118] Optionally, in another embodiment of the above method of the present application, obtaining the integrated signal echo received by the T-ISAC system includes:

[0119] Acquire the integrated signal echo received by the T-ISAC system and reflected by the user equipment.

[0120] Optionally, in another embodiment of the method of the present application, the constructing, based on the downlink integrated signal, a first association relationship for characterizing the downlink communication performance of the user equipment and the T-ISAC system parameter includes:

[0121] Determining, based on the communication information carried by the downlink integrated signal, a first sub-association reflecting the effective transmission rate of the downlink transmission channel and the T-ISAC system parameter, a second sub-association reflecting the power spectral density ratio and the T-ISAC system parameter, a third sub-association reflecting the bit error rate and the T-ISAC system parameter, and a fourth sub-association reflecting the communication signal-to-noise ratio and the T-ISAC system parameter;

[0122] The first sub-association relationship, the second sub-association relationship, the third sub-association relationship, and the fourth sub-association relationship are taken as the first association relationship.

[0123] Optionally, in another embodiment of the method of the present application, constructing, based on the integrated signal echo, a second correlation relationship for characterizing the perceived communication performance of the user equipment and the T-ISAC system parameter includes:

[0124] Determining, based on the communication information carried by the integrated signal echo, a fifth sub-association relationship between a distance indicator of the user equipment and the T-ISAC system, a sixth sub-association relationship between a moving speed indicator and the T-ISAC system, a seventh sub-association relationship between a relative angle indicator and the T-ISAC system, and an eighth sub-association relationship between a total system loss and the T-ISAC system;

[0125] The fifth sub-association relationship, the sixth sub-association relationship, the seventh sub-association relationship, and the eighth sub-association relationship are used as the second association relationship.

[0126] Optionally, in another embodiment of the method of the present application, obtaining the OFDM frame structure design of the T-ISAC system based on the first association relationship and the second association relationship includes:

[0127] Obtaining 6G application scenario requirements, and determining a subcarrier spacing, a number of subcarriers, a cyclic prefix ratio, and a number of symbols of the T-ISAC system based on the 6G application scenario requirements, the first association relationship, and the second association relationship;

[0128] The OFDM frame structure design is determined based on the subcarrier spacing, number of subcarriers, cyclic prefix ratio and number of symbols of the T-ISAC system.

[0129] Optionally, in another embodiment of the above method of the present application, determining the subcarrier spacing, number of subcarriers, cyclic prefix ratio, and number of symbols of the T-ISAC system based on the 6G application scenario requirements, the first association relationship, and the second association relationship includes:

[0130] While meeting the requirements of the 6G application scenario, based on the first association relationship and the second association relationship, the parameter feasible domain of the OFDM frame structure is calculated, wherein the parameter feasible domain includes the subcarrier spacing, the number of subcarriers, the cyclic prefix ratio and the number of symbols.

[0131] In another embodiment of the present application, as shown in FIG4 , the present application further provides a waveform generation device integrating communication and perception, which is applied to a T-ISAC system including a MIMO linear array, and includes:

[0132] An acquisition module 201 is configured to acquire, during communication between the T-ISAC system and the user equipment using the MIMO linear array, a downlink integrated signal received by the user equipment and an integrated signal echo received by the T-ISAC system;

[0133] The construction module 202 is configured to construct, based on the downlink integrated signal, a first association relationship between the downlink communication performance of the user equipment and the T-ISAC system parameters; and, based on the integrated signal echo, to construct a second association relationship between the perceived communication performance of the user equipment and the T-ISAC system parameters, where the system parameters are system operating parameters required for constructing the integrated waveform.

[0134] The generating module 203 is configured to obtain an OFDM frame structure design of the T-ISAC system based on the first association relationship and the second association relationship, and control the T-ISAC system to generate an integrated waveform based on the OFDM frame structure design.

[0135] By applying the technical solution of this application, a sparse MIMO transceiver array model and an integrated OFDM transmit signal and receive echo model can be constructed for the T-ISAC system to establish a correlation between communication perception and performance, the OFDM frame structure, and various T-ISAC system parameters. Combining this correlation with the requirements of 6G application scenarios, a feasible domain calculation method for OFDM frame structure parameters is provided for the T-ISAC system, thereby achieving the construction of an integrated waveform.

[0136] In another embodiment of the present application, the first calculation module 202 is configured to:

[0137] Acquire the integrated signal echo received by the T-ISAC system and reflected by the user equipment.

[0138] In another embodiment of the present application, the first calculation module 202 is configured to:

[0139] Determining, based on the communication information carried by the downlink integrated signal, a first sub-association reflecting the effective transmission rate of the downlink transmission channel and the T-ISAC system parameter, a second sub-association reflecting the power spectral density ratio and the T-ISAC system parameter, a third sub-association reflecting the bit error rate and the T-ISAC system parameter, and a fourth sub-association reflecting the communication signal-to-noise ratio and the T-ISAC system parameter;

[0140] The first sub-association relationship, the second sub-association relationship, the third sub-association relationship, and the fourth sub-association relationship are taken as the first association relationship.

[0141] In another embodiment of the present application, the first calculation module 202 is configured to:

[0142] Determining, based on the communication information carried by the integrated signal echo, a fifth sub-association relationship between a distance indicator of the user equipment and the T-ISAC system, a sixth sub-association relationship between a movement speed indicator and the T-ISAC system, a seventh sub-association relationship between a relative angle indicator and the T-ISAC system, an eighth sub-association relationship between a total system loss and the T-ISAC system, and a ninth sub-association relationship between a perceived signal-to-noise ratio and the T-ISAC system;

[0143] The fifth sub-association relationship, the sixth sub-association relationship, the seventh sub-association relationship, the eighth sub-association relationship, and the ninth sub-association relationship are used as the second association relationship.

[0144] In another embodiment of the present application, the first calculation module 202 is configured to:

[0145] Obtaining 6G application scenario requirements, and determining a subcarrier spacing, a number of subcarriers, a cyclic prefix ratio, and a number of symbols of the T-ISAC system based on the 6G application scenario requirements, the first association relationship, and the second association relationship;

[0146] The OFDM frame structure design is determined based on the subcarrier spacing, number of subcarriers, cyclic prefix ratio and number of symbols of the T-ISAC system.

[0147] In another embodiment of the present application, the first calculation module 202 is configured to:

[0148] While meeting the requirements of the 6G application scenario, based on the first association relationship and the second association relationship, the parameter feasible domain of the OFDM frame structure is calculated, wherein the parameter feasible domain includes the subcarrier spacing, the number of subcarriers, the cyclic prefix ratio and the number of symbols.

[0149] The embodiments of the present application also provide an electronic device to perform the above-mentioned communication perception integrated waveform generation method. Please refer to Figure 5, which shows a schematic diagram of an electronic device provided by some embodiments of the present application. As shown in Figure 5, the electronic device 3 includes: a processor 300, a memory 301, a bus 302 and a communication interface 303, and the processor 300, the communication interface 303 and the memory 301 are connected via the bus 302; the memory 301 stores a computer program that can be run on the processor 300, and when the processor 300 runs the computer program, it executes the communication perception integrated waveform generation method provided by any of the aforementioned embodiments of the present application.

[0150] The memory 301 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage. The communication connection between the device network element and at least one other network element is achieved through at least one communication interface 303 (which may be wired or wireless), and may use the Internet, a wide area network, a local area network, a metropolitan area network, etc.

[0151] The bus 302 may be an ISA bus, a PCI bus, or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 301 is used to store programs. Upon receiving an execution instruction, the processor 300 executes the program. The video transmission method disclosed in any of the aforementioned embodiments of the present application may be applied to or implemented by the processor 300.

[0152] The processor 300 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 300 or by software instructions. The above processor 300 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 301 , and the processor 300 reads the information in the memory 301 and completes the steps of the above method in combination with its hardware.

[0153] The electronic device provided in the embodiment of the present application and the waveform generation method for integrated communication perception provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented therein.

[0154] An embodiment of the present application also provides a computer-readable storage medium corresponding to the waveform generation method for integrated communication perception provided in the aforementioned embodiment. Please refer to Figure 6, which shows that the computer-readable storage medium is a CD 40 on which a computer program (i.e., a program product) is stored. When the computer program is run by the processor, it will execute the video transmission method provided in any of the aforementioned embodiments.

[0155] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0156] The computer-readable storage medium provided in the above-mentioned embodiments of the present application and the video transmission method provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.

[0157] It should be noted that:

[0158] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known structures and technologies are not shown in detail so as not to obscure the understanding of this description.

[0159] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present application, various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following schematic diagram: the claimed application requires more features than the features expressly recited in each claim. Rather, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims following the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present application.

[0160] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination.

[0161] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A waveform generation method integrating communication and perception, characterized in that: Applied to a T-ISAC system including a sparse MIMO linear array, the method comprises: In the process of the T-ISAC system communicating with the user equipment using the sparse MIMO linear array, obtaining a downlink integrated signal received by the user equipment, and obtaining an integrated signal echo received by the T-ISAC system; Based on the downlink integrated signal, a first association relationship between the downlink communication performance of the user equipment and the T-ISAC system parameter is constructed; and based on the integrated signal echo, a second association relationship between the perceived communication performance of the user equipment and the T-ISAC system parameter is constructed, wherein the system parameter is a system operating parameter required for constructing an integrated waveform; Based on the first association relationship and the second association relationship, an OFDM frame structure design of the T-ISAC system is obtained, and based on the OFDM frame structure design, the T-ISAC system is controlled to generate an integrated waveform.

2. The method according to claim 1, characterized in that The step of obtaining the integrated signal echo received by the T-ISAC system includes: Acquire the integrated signal echo received by the T-ISAC system and emitted after being reflected by the user equipment.

3. The method according to claim 1, characterized in that The constructing, based on the downlink integrated signal, a first association relationship for characterizing the downlink communication performance of the user equipment and the T-ISAC system parameter comprises: Based on the communication information carried by the downlink integrated signal, determine a first sub-association relationship between the effective transmission rate of the downlink transmission channel and the T-ISAC system parameter, a second sub-association relationship between the power spectrum density ratio and the T-ISAC system parameter, a third sub-association relationship between the bit error rate and the T-ISAC system parameter, and a fourth sub-association relationship between the communication signal-to-noise ratio and the T-ISAC system parameter; The first sub-association, the second sub-association, the third sub-association and The fourth sub-association relationship serves as the first association relationship.

4. The method according to claim 1, characterized in that The constructing, based on the integrated signal echo, a second association relationship for characterizing the perceived communication performance of the user equipment and the T-ISAC system parameter comprises: Based on the communication information carried by the integrated signal echo, determine a fifth sub-association relationship between a distance index of the user equipment and the T-ISAC system, a sixth sub-association relationship between a moving speed index and the T-ISAC system, a seventh sub-association relationship between a relative angle index and the T-ISAC system, an eighth sub-association relationship between a total system loss and the T-ISAC system, and a ninth sub-association relationship between a perceived signal-to-noise ratio and the T-ISAC system; The fifth sub-association, the sixth sub-association, the seventh sub-association, the eighth sub-association and the ninth sub-association are taken as the second association.

5. The method according to claim 1, characterized in that The obtaining, based on the first association relationship and the second association relationship, an OFDM frame structure design of the T-ISAC system includes: Obtaining 6G application scenario requirements, and determining a subcarrier spacing, a number of subcarriers, a cyclic prefix ratio, and a number of symbols of the T-ISAC system based on the 6G application scenario requirements, the first association relationship, and the second association relationship; The OFDM frame structure design is determined based on the subcarrier spacing, number of subcarriers, cyclic prefix ratio and number of symbols of the T-ISAC system.

6. The method according to claim 4, characterized in that The determining, based on the 6G application scenario requirements, the first association relationship, and the second association relationship, a subcarrier spacing, a number of subcarriers, a cyclic prefix ratio, and a number of symbols of the T-ISAC system includes: Under the condition of meeting the requirements of the 6G application scenario, based on the first association relationship and the second association relationship, the parameter feasible domain of the OFDM frame structure is calculated, wherein the parameter feasible domain includes the subcarrier spacing, the number of subcarriers, the cyclic prefix ratio and the number of symbols.

7. A waveform generation device integrating communication and perception, characterized in that: Application in T-ISAC systems containing sparse MIMO linear arrays, including: The acquisition module is configured to utilize the sparse MIMO linear array in the T-ISAC system with a user During communication with a user equipment, obtaining a downlink integrated signal received by the user equipment, and obtaining an integrated signal echo received by the T-ISAC system; A construction module is configured to construct a first association relationship between the downlink communication performance of the user equipment and the T-ISAC system parameter based on the downlink integrated signal; and to construct a second association relationship between the perceived communication performance of the user equipment and the T-ISAC system parameter based on the integrated signal echo, wherein the system parameter is a system operating parameter required for constructing an integrated waveform; The generation module is configured to obtain an OFDM frame structure design of the T-ISAC system based on the first association relationship and the second association relationship, and control the T-ISAC system to generate an integrated waveform based on the OFDM frame structure design.

8. An electronic device, characterized in that: include: A memory for storing executable instructions; as well as, A processor is used to execute the executable instructions with the memory to complete the operation of the waveform generation method for integrating communication perception as described in any one of claims 1-6.

9. A computing device readable storage medium for storing instructions readable by a computing device, characterized in that: When the instruction is executed, the operation of the communication-aware integrated waveform generation method described in any one of claims 1-6 is performed.

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