CN114866381A - Signal processing method, signal processing device, communication equipment and storage medium - Google Patents

Abstract

The present application discloses a signal processing method, an apparatus, a communication device and a storage medium, which belong to the field of communication. The method includes: a first communication device determining a whitening filter based on first transmission configuration information and one or more pre-stored whitening filter matrices; the first communication device is based on the whitening filter, and processing is based on the first The first signal transmitted by the configuration information is transmitted. In the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, a whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. Reduce the complexity of receiver design, obtain optimal performance in different scenarios according to receiver capabilities and channel state changes, reduce the complexity of the receiver side to calculate the whitening filter required by the receiver of the FTN system, and make it more efficient. Ease of engineering implementation.

Description

Signal processing method, device, communication device and storage medium

technical field

The present application belongs to the field of communication technologies, and in particular relates to a signal processing method, apparatus, communication device and storage medium.

Background technique

In the transceiving process of Faster Than Nyquist (FTN), the interval of each symbol in the transmitter is much smaller than the minimum interval of Nyquist transmission, which causes adjacent data to overlap each other. Namely inter-symbol interference (precursor inter-symbol interference, ISI); thus the receiver must use a whitening filter and a maximum likelihood sequence detection (Maximum likehood sequence estimation, MLSE) algorithm to eliminate this ISI.

In the prior art, the matrix inversion and the square root method Cholesky decomposition method involved in the algorithm for calculating the whitening filter by the receiver have relatively high operational complexity, resulting in relatively high receiver design complexity.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a signal processing method, apparatus, communication device, and storage medium, which can avoid complex calculations performed by a receiver to obtain a whitening filter, reduce receiver complexity, and facilitate engineering implementation.

In a first aspect, a signal processing method is provided, the method comprising:

The first communication device determines a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices;

The first communication device processes the first signal transmitted based on the first transmission configuration information based on the whitening filter.

In a second aspect, a signal processing apparatus is provided, the apparatus comprising:

a first determining module, configured to determine a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices;

A first processing module, configured to process, based on the whitening filter, the first signal transmitted based on the first transmission configuration information.

In a third aspect, a communication device is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor When implementing the steps of the method as described in the first aspect.

In a fourth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

In a fifth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a device program or instruction to implement the method described in the first aspect. method.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

2 is a schematic diagram of a signal comparison without time-domain overlap and time-domain overlap provided by an embodiment of the present application;

3 is a schematic diagram of a processing flow of a transceiver end of an FTN communication system provided by an embodiment of the present application;

4 is a schematic diagram of a receiver processing flow provided by the present application;

5 is one of the schematic flowcharts of the signal processing method provided by the embodiment of the present application;

6 is a schematic diagram of a property legend of the whitening filter corresponding to the L matrix provided by the embodiment of the present application;

FIG. 7 is a second schematic flowchart of a signal processing method provided by an embodiment of the present application;

FIG. 8 is a third schematic flowchart of a signal processing method provided by an embodiment of the present application;

9 is a schematic structural diagram of a signal processing apparatus provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

11 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (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 not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device ( VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, earphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmission and Reception Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary, it should be noted that in the embodiment of this application, only NR is used The base station in the system is taken as an example, but the specific type of the base station is not limited.

In order to better introduce this application, first introduce the following:

Super-Nyquist transmission, namely Faster-than-Nyquist Signaling, is currently considered to be a new type of signal processing technology that can break through the Nyquist sampling rate and further approach the physical limit of channel capacity. Its derivative technology is Overlapped X Division Multiplexing (OVXDM). The OVXDM/FTN technology artificially introduces ISI and/or Inter Channel Interference (ICI) in the time domain/frequency domain based on waveform coding theory, thereby improving the symbol transmission rate and increasing the equivalent channel capacity. However, the waveform encoded signal puts forward higher requirements on the performance of the receiver, which increases the complexity of the decoding algorithm and the power consumption of the hardware. Generally speaking, the larger the time-frequency overlap coefficient during waveform coding, that is, the more serious the artificially introduced ISI and ICI, the more states need to be judged by the receiver side, and the higher the complexity of the receiving algorithm.

In the complex electromagnetic wave transmission environment in the city, due to the existence of a large number of scattering, reflection and refraction surfaces, the time when the wireless signal reaches the receiving antenna through different paths is different, that is, the multipath effect of transmission, caused by different path signals. When the preceding and following symbols of the transmitted signal arrive at the same time through different paths, or in other words, when the latter symbol arrives within the delay spread of the previous symbol, the ISI is generated. Similarly, in the frequency domain, due to frequency offset effect, Doppler effect and other reasons, each sub-carrier where the signal is located will have different degrees of offset in frequency, resulting in overlapping sub-carriers that may have been orthogonal, that is, ICI. The above-mentioned ISI/ICI generated in the signal transmission process is superimposed with the ISI/ICI introduced by waveform coding during transmission, which imposes higher requirements on the decoding capability of the receiver.

In communication systems, fading channels can be combated by more complex receiver algorithms. For example, methods such as channel pre-equalization and iterative algorithm of joint channel decoding are used. However, in practical applications, on the one hand, due to the constraints of cost and power consumption, the actual system often cannot adopt an ideal receiver, and the complexity of the decoding algorithm implemented is limited. When the ISI/ICI exceeds a certain threshold, it will not be able to correctly decode code. At the same time, when the decoding complexity of the receiver increases, energy consumption will also increase, which is not conducive to saving energy and reducing consumption of the terminal. Meanwhile, the throughput advantage of the FTN/OVTDM system over the traditional OFDM system mainly lies in the high signal-to-noise ratio (Signal Noise Ratio, SNR) region. In the high SNR region, the influence of noise on the received signal is relatively small, and the receiver is easy to decode correctly according to the known FTN/OVTDM inter-symbol coding constraints, and the bit error rate is very low. In the low SNR region, the influence of noise on the received signal is relatively large, which destroys the constraint relationship between symbols and makes the bit error rate higher than that of the traditional OFDM system.

1. FTN/OVTDM related background technology;

FTN/OVTDM is a signal processing method that artificially introduces an appropriate amount of ISI and/or ICI by performing shift superposition processing (also known as waveform coding) on the transmitted signal. The number of symbols sent in (Hz*s). Among them, the full name of FTN is Faster-than-Nyquist, that is, super Nyquist. OVXDM includes OVTDM, OVFDM and OVCDM, as well as the combined technology of OVTDM and OVFDM, whose full name is Overlapped X-Domain Multiplexing, that is, X-domain overlapping multiplexing. In the following, it is collectively referred to as FTN. At the same time, the introduced ISI and ICI will increase the complexity of decoding, which may increase the bit error rate. However, the negative effect caused by the increase of the bit error rate can be suppressed by the advanced decoding algorithm, and the channel capacity can still be improved by the method of speeding up the symbol transmission rate. Its expression is as follows:

因而有

Among them, T _Δ =τT, τ∈(0,1), τ is the time domain overlap coefficient. In particular, in OVXDM, take

Hence there is

ζ为频域重叠系数。特别的，在OVXDM中，取

因而有

ζ is the overlap coefficient in the frequency domain. In particular, in OVXDM, take

Hence there is

FIG. 2 is a schematic diagram illustrating the comparison of signals without time-domain overlap and time-domain overlap provided by an embodiment of the present application, and FIG. 2 is used as an example to illustrate the generation of ISI. When T = 0.8, after the real-time waveform overlap coefficient τ = 0.8, the processed signal at the time of each sampling point, the amplitude of the pulse waveform carrying the information of other sampling points is not zero, so ISI is generated. The impulse response function of the path channel is h _CH (t), then the signal after passing through the channel can be equivalently expressed as:

in

The expression of the signal received by the receiver is:

y(t)=s′(t)+w(t); (3)

where w(t) is Gaussian white noise.

There are two main ways to generate FTN/OVTDM signals: 1) In a single-antenna system, it can be equivalently generated by oversampling the signal + shaping filtering, and the effect is similar to a convolutional encoder acting on the modulation level. 2) In a multi-antenna system, it can be generated in a way that is closer to its physical meaning, that is, controlling each antenna element/port of the multi-antenna to transmit signals with a delay of T _Δ in turn according to the established shift and superposition principle, Signals sent by different antenna elements/ports with different delays are superimposed on the air interface, and ISI is introduced between the sampling points of the signals to form FTN/OVTDM signals.

Due to the overlapping effect of waveform coding and multipath channels, the number of equivalent multipaths increases, and the symbol spacing and subcarrier spacing are more "closer", so that the equivalent time-frequency domain overlap degree increases. This increase in the degree of overlap in the time-frequency domain is reflected as more serious ISI and ICI at the receiving end, posing challenges to the design of the receiver. The complexity of the ML-type receiver with the best theoretical performance increases with the increase of the waveform overlap. When {K,N} is large, the hardware cannot be realized. However, fast algorithms with fixed decoding complexity cannot do much for signals with a high degree of overlap.

的FTN信号，等价为重叠层数为K的OVTDM信号。在后面的文本中，为表达简洁，可以统一用FTN指代FTN/OVTDM为代表的超奈奎斯特信号族。同时，可以采用重叠层数作为表示FTN/OVTDM信号特征的描述方式。In the present invention, the overlap coefficient is

The FTN signal is equivalent to the OVTDM signal with K overlapping layers. In the following text, for the sake of simplicity, FTN can be used to refer to the super-Nyquist signal family represented by FTN/OVTDM. At the same time, the number of overlapping layers can be used as a description method to represent the characteristics of the FTN/OVTDM signal.

Second, the receiving side algorithm of FTN signal

FIG. 3 is a schematic diagram of a processing flow of a transceiver end of an FTN communication system provided by an embodiment of the present application. In an actual system, the FTN transceiver processing flow is shown in FIG. 3 . The part marked in red is the difference from the communication system based on Nyquist transmission. There are two main differences: 1) The interval of each symbol in the transmitter is much smaller than the minimum interval of Nyquist transmission, which causes adjacent data to overlap each other, i.e. ISI; which leads to 2) , the receiver must use a whitening filter and a maximum likelihood sequence detection (Maximum likelihood sequence estimation, MLSE) algorithm to eliminate this ISI.

FIG. 4 is a schematic diagram of a receiver processing flow provided by the present application, and the modules related to the present invention are mainly whitening filter modules. The whitening filter module and its pre- and post-processing modules are shown in Figure 4. The received time domain sampling point y(t) is input to the whitening filter module after matched filtering and downsampling. At this time, the additive white noise originally caused by the wireless transmission channel in y(t) becomes colored noise after matched filtering, which is not conducive to the subsequent MLSE detection. Therefore, it is necessary to restore the colored noise to white noise through a whitening filter module. The whitening filter abstracted as a mathematical model is actually a strip matrix, and each row of non-zero elements is the tap coefficient corresponding to the corresponding next module MLSE module. For a certain system, the L matrix corresponding to the whitening filter can be calculated as follows.

First, an H matrix is constructed from the coefficients g(t)=[g ₀ g ₁ . . . g _n ] of the shaping filter.

L in the above H matrix is the length of the processed data sampling points, and N is the length of the sampling points of the shaping filter. Calculate the covariance matrix R=HH ^H of H, and perform Cholesky decomposition on the obtained covariance matrix R. According to Cholesky's theorem, R=L ^H L. The inverse of the obtained conjugate transpose of L that satisfies the condition obtains L ^-H , that is, the required whitening filter.

It can be verified that the whitening filter can restore the Gaussian distribution characteristics of the noise. The aforementioned formula (3) can be written in vector form as follows:

Y=S+N; (4)

After matched filtering operation at the receiver side, we get:

经匹配滤波后变成了有色噪声，需利用前述L进行白化处理：in

After matched filtering, it becomes colored noise, which needs to be whitened by the aforementioned L:

为高斯白噪声：can be verified

is Gaussian white noise:

In the process of solving the whitening filter, the matrix inversion and Cholesky decomposition involved are difficult to implement in actual hardware when the matrix dimension is large, that is, when L and N are large. Therefore, it is necessary to find a way to avoid the receiver frequently solving the operation of the whitening filter.

The signal processing method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

FIG. 5 is one of the schematic flowcharts of the signal processing method provided by the embodiment of the present application. As shown in FIG. 5 , the method includes the following steps:

Step 500, the first communication device determines a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices;

Step 510: The first communication device processes, based on the whitening filter, the first signal transmitted based on the first transmission configuration information. Optionally, the first transmission configuration information includes the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal.

Optionally, the first communication device is the receiving side of the first signal, and the second communication device is the transmitting side of the first signal.

Optionally, the mathematical representation of the whitening filter is a matrix, which may be referred to as a first target matrix or an L matrix.

Optionally, some methods can be used, such as using the prior information of the wireless channel, using the channel measurement results, etc., to reduce the complexity of the receiver algorithm as much as possible, so that the receiver can track the time-varying characteristics of the fading channel, and always maintain the optimal working status.

FIG. 6 is a schematic diagram illustrating the properties of the L matrix corresponding to the whitening filter provided by the embodiment of the present application; as shown in FIG. 6 , the properties of the L matrix corresponding to the whitening filter can reduce the complexity of the receiver from the perspective of system design. Figure 6 corresponds to the L matrix when K=2, L=4, 6, and 8 from top to bottom. By observing the properties of the matrix in Figure 6, it can be seen that when the number of overlapping layers K is fixed, L is a square matrix with dimension KL*KL. The number of non-zero elements of the L matrix column vector is aK+1. The value of a depends on the number of sampling points Fs of the main lobe of the filter after K is determined. For example, it is known that K=2, when Fs=16, a=6, when Fs=24, a=4, when Fs=32, a=3, and when Fs=48, a=2.

It can be seen from Fig. 6 that when K is determined, the L matrix L n corresponding to the smaller time domain sampling point n is a sub-matrix of the L matrix L _{n '} corresponding to the larger time domain sampling point n', and has: L _n = L _n′ (1:n, 1:n) means that L _n is a submatrix obtained by taking n elements in rows and columns, starting from the first element in the upper left corner of L _n′ . Therefore, the first communication device only needs to know the value K of the first overlapping layer corresponding to the first signal, and the L matrix corresponding to the maximum possible number of processing time-domain sampling points in one frame, that is, the first time-domain sampling point _Lmax , can be obtained. The L matrix corresponding to any possible number of sampling points in the time domain, that is, the whitening filter.

It can be seen from the aforementioned formula (3) that the noise w(t) has nothing to do with the channel impulse response; therefore, the calculation of the whitening filter does not need to consider the channel impulse response. Therefore, the calculation of the whitening filter only depends on the coefficients of the shaping filter and the frame structure of the data; in the communication system, the data sampling points are processed in units of one time slot, that is, the number of time domain sampling points sent in one time slot is The number L of H matrix columns does not need to vary with time-varying channel changes.

Optionally, a time slot represents the minimum time resource unit used by the physical layer of the communication system to demodulate and decode data, which may be collectively referred to as a time slot in various embodiments of the present application, such as a time slot in NR, or a sub-slot in LTE. frame.

Optionally, the filter used for ideal pulse shaping (frequency domain rectangular window, time domain Sinc function) is difficult to realize in engineering. Therefore, in engineering applications, the root raised cosine filter can be used as a shaping filter. One of the key parameters is the roll-off factor α. When α is smaller, its frequency domain response function is closer to the ideal pulse, but the design and implementation of hardware devices are also more difficult. At the same time, when α is very small, the inter-symbol interference caused by the linear distortion in signal transmission is also more serious, which will also affect the performance of the receiver. Therefore, in practical systems, the value of α is usually between 0.15 and 0.5.

Optionally, all indication and feedback messages and related control signaling involved in the embodiments of the present application are sent by Nyquist sampling signals, and are not sent by FTN signals. To ensure the reliability of the control message, the FTN signal is only used to transmit data, and is not used to transmit pilot and control signaling.

Optionally, the first communication device may pre-store one or more whitening filter matrices, and when the first communication device acquires the whitening filter for processing the first signal, it may be based on the pre-stored one or more whitening filter matrices. Matrix to go, determine the whitening filter.

Optionally, taking the first communication device as the UE as an example, in order to simplify the complexity of the receiver, the UE may pre-store the whitening filter table in the hardware, and the receiver may directly call it during processing, which can simplify the hardware design and reduce the computing overhead of the UE.

Optionally, the first communication device may determine a whitening filter based on the first overlapping layer number and the first time-domain sampling point number corresponding to the first signal, and one or more pre-stored whitening filter matrices, and use the whitening filter to determine the whitening filter. The first signal transmitted based on the first transmission configuration information is processed.

Optionally, an embodiment of the present application proposes a solution in which the first communication device, that is, the receiver side of the first signal, uses a priori information to preset a whitening filter, thereby reducing the real-time calculation complexity of the receiver side. Through the known protocol pre-configuration information and the information configured on the sending side, the receiving side can pre-store one or more whitening filters; and when the configuration changes, the pre-stored whitening filters are used to calculate the available ones suitable for the current service configuration. Whitening filter. The complexity of receiver design is reduced, and optimal performance can be obtained in different scenarios according to receiver capability and channel state changes.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

Optionally, the method further includes:

determining the pre-stored one or more whitening filter matrices based on protocol pre-definition; or

determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and a shaping filter corresponding to the second transmission configuration information;

Wherein, the second transmission configuration information is predefined by the protocol or determined based on the indication information of the second communication device, and the shaping filter is predefined by the protocol or determined based on the indication information of the second communication device.

Optionally, since one or more whitening filter matrices are to be stored in advance, one or more whitening filter matrices suitable for storage may be predetermined.

Optionally, one or more whitening filter matrices suitable for storage may be matched with the ROM storage space of the first communication device, or the acquisition of the whitening filter may be simpler, for example, the calculation amount may be smaller.

Optionally, the pre-stored one or more whitening filter matrices may be predefined by the protocol.

Optionally, corresponding to different second transmission configuration information, the protocol may predefine one or more different whitening filter matrices; matrix for storage.

Optionally, the second transmission configuration information may be determined based on protocol pre-regulation or based on indication information of the second communication device, wherein the second transmission configuration information may include one or more groups of possible configurations, and then may be based on the second transmission configuration. The information and the shaping filter corresponding to the second transmission configuration information determine one or more pre-stored whitening filter matrices, and then store the one or more whitening filter matrices.

Optionally, different transmission configurations correspond to different whitening filters, corresponding to different shaping filters, and different combinations of {the number of overlapping layers, the number of time-domain sampling points} may correspond to the same or different shaping filters.

Optionally, the shaping filter may be predefined by the protocol, or determined based on the shaping filter configuration of the first communication device, or determined based on the shaping filter configuration of the second communication device, or determined based on the first communication device The shaping filter configuration (first configuration information) of the device and the shaping filter configuration (second configuration information) of the second communication device are jointly determined.

Optionally, the shaping filter determined based on the shaping filter configuration may be any one of the selected configurations, or the one matching the current configuration information, or the optimal one, which is not limited in this embodiment.

Optionally, for the two communication devices, if the capabilities of the devices are strong, the supported configurations (or key technical indicators) of the shaping filter are more. The capability of the device is weak, and the configuration of the supported shaping filter is less.

Optionally, for two communication devices, the capabilities of the devices are known to both parties or can be easily obtained. Since the communication device itself knows its own device identity and the device identity of the communication peer, both the second communication device and the second communication device can easily know the capabilities of the two.

For example, if the first communication device is a base station and the second communication device is a terminal, both parties can directly determine that the first capability is stronger than the second capability.

For example, if the second communication device is a base station and the first communication device is a terminal, both parties can directly determine that the first capability is weaker than the second capability.

For example, if the first communication device is a base station and the second communication device is a base station, both parties can directly determine that the first capability and the second capability are the same.

For example, if the first communication device is the terminal and the second communication device is the largest, both parties can directly determine that the first capability and the second capability are the same.

Optionally, in the case where the capabilities of the first communication device and the second communication device are different, in order that the first signal can be transmitted normally, the shaping filter may be determined according to the configuration of the side with the weaker capability.

Optionally, when the capabilities of the first communication device and the second communication device are the same, the shaping filter may be determined according to the configuration of either side, or the shaping filter may be determined according to the configuration of both sides.

Optionally, in the case that the first capability of the first communication device is weaker than the second capability of the second communication device, the shaping filter may be determined based on the first configuration information of the first communication device.

Optionally, when the first capability of the first communication device and the second capability of the second communication device are the same, the shaping filter may be determined based on the first configuration information of the first communication device, or the shaping filter may be determined based on the first configuration information of the first communication device. The second configuration information of the two communication devices determines the shaping filter.

Optionally, if the shaping filter is determined based on the first configuration information of the first communication device, after determining the shaping filter to be used, the first communication device may send instruction information to the second communication device, instructing the second communication device For the shaping filter, after receiving the indication information, the second communication device can determine the shaping filter used for the first signal transmission. The reverse is also possible.

Optionally, if the shaping filter is determined based on the first configuration information of the second communication device, after determining the shaping filter to be used, the second communication device may send instruction information to the first communication device, instructing the first communication device to use the shaping filter. For the shaping filter, after receiving the indication information, the first communication device can determine the shaping filter used for the first signal transmission. The reverse is also possible.

Optionally, if the shaping filter is determined based on the first configuration information of the first communication device, the first communication device may indicate the shaping filter corresponding to the first configuration information to the second communication device, and the second communication device determines the shape filter to use when determining the shape filter. After determining the shaping filter, the first communication device can send instruction information to instruct the first communication device to describe the shaping filter, and after receiving the instruction information, the first communication device can determine the shaping filter used for the first signal transmission . The reverse is also possible.

Optionally, if the shaping filter is determined based on the second configuration information of the second communication device, the second communication device may indicate the shaping filter corresponding to the second configuration information to the first communication device, and the first communication device determines the shape filter to use when determining the shape filter. After the shaping filter is set, the second communication device can send instruction information to instruct the second communication device to describe the shaping filter. After receiving the instruction information, the second communication device can determine the shaping filter used for the first signal transmission. . The reverse is also possible.

Optionally, in the case where the first capability is stronger than the second capability, the shaping filter may be determined based on the second configuration information, so the second communication device may determine the shaping filter based on the second configuration information, and then indicate to the second communication device. a communication device. The reverse is also possible.

Optionally, in the case where the first capability and the second capability are the same, the shaping filter may be determined based on the second configuration information, so the second communication device may determine the shaping filter based on the second configuration information, and then indicate to the second communication device. a communication device. The reverse is also possible.

Optionally, when the first communication device indicates the determined shaping filter to the second communication device, it may directly indicate the coefficients or generation parameters of the shaping filter; it may also indicate a coefficient or generation parameter including at least one shaping filter, and A table of indices corresponding to the coefficients or generation parameters of each shaping filter; then indicating the indices corresponding to the coefficients or generation parameters of the determined shaping filter. Optionally, when the second communication device indicates the determined shaping filter to the first communication device, it may directly indicate the coefficients or generation parameters of the shaping filter; it may also indicate a coefficient or generation parameter including at least one shaping filter, and A table of indices corresponding to the coefficients or generation parameters of each shaping filter; then indicating the indices corresponding to the coefficients or generation parameters of the determined shaping filter.

Optionally, the first transmission configuration information includes the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal;

Optionally, the second transmission configuration information includes one or more overlapping layer numbers, and one or more time-domain sampling points;

Wherein, determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information includes:

For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the ROM capacity constraint of the first communication device.

Optionally, the determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information includes:

For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the ROM capacity constraint of the first communication device.

Optionally, the second communication device may indicate or may specify in the protocol that all optional overlapping coefficients are K={K _j , j=0, 1, 2, ...}, and one L _i corresponding to each K value; Then a first whitening filter matrix of the corresponding maximum dimension can be generated

Optionally, the second communication device may indicate or may specify in the protocol that all optional overlapping coefficients are K={K _j , j=0, 1, 2, ...}, and one L _i corresponding to each K value; Then a second whitening filter matrix with the maximum dimension corresponding to each K value under the ROM capacity constraints of the first communication device can be generated.

Optionally, the second communication device may indicate or may stipulate in the protocol that all optional overlapping coefficients are K={K _j , j=0, 1, 2, ...}, and a set of optional overlapping coefficients corresponding to each K value The number of data samples L={L _i , i=0,1,2,...}. For each K _j , a corresponding whitening filter matrix of maximum dimension can be generated

Optionally, the second communication device may indicate or may stipulate in the protocol that all optional overlapping coefficients are K={K _j , j=0, 1, 2, ...}, and a set of optional overlapping coefficients corresponding to each K value The number of data samples L={L _i , i=0,1,2,...}. For each K _j , a second whitening filter matrix of the largest dimension corresponding to each K value under the ROM capacity constraint of the first communication device can be generated.

Optionally, the second communication device may indicate or may stipulate in the protocol that an overlap coefficient is K=K _j , and a set of optional data sample numbers L={L _i , i=0, 1,2,…}; then a whitening filter matrix of the corresponding maximum dimension can be generated

Optionally, the second communication device may indicate or may stipulate in the protocol that an overlap coefficient is K=K _j , and a set of optional data sample numbers L={L _i , i=0, 1,2,...}; then a second whitening filter matrix with the largest dimension corresponding to each K value under the ROM capacity constraints of the first communication device can be generated

Optionally, the second communication device may indicate or may stipulate in the protocol that an overlap coefficient is K=K _j , and a L _i corresponding to the K value; then a corresponding whitening filter matrix may be generated.

Optionally, the second communication device may indicate or may stipulate in the protocol that an overlap coefficient is K=K _j , and a L _i corresponding to the K value; then a ROM capacity constraint condition that satisfies the first communication device can be generated. The second whitening filter matrix of the largest dimension corresponding to the number of overlapping layers

Optionally, the first communication device determines a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices, including:

determining the dimension of the whitening filter based on the first transmission configuration information;

The whitening filter is determined based on the dimensions of the whitening filter and the pre-stored one or more whitening filter matrices.

Optionally, when determining the whitening filter based on the first transmission configuration information, the dimension of the L matrix corresponding to the whitening filter to be used may be determined first, that is, the dimension of the whitening filter;

Optionally, the dimension of the whitening filter may be determined based on the first transmission configuration information;

Optionally, the dimension of the whitening filter=the number of the first overlapping layers×the number of the first sampling points in the time domain.

Optionally, after the dimension W of the whitening filter is determined, a whitening filter whose dimension is W may be determined from one or more pre-stored whitening filter matrices.

Optionally, determining the whitening filter based on the dimension of the whitening filter and the pre-stored one or more whitening filter matrices includes:

Based on the first overlapping layer number, determining a second target matrix corresponding to the first overlapping layer number in the pre-stored one or more whitening filter matrices;

The whitening filter is determined based on the dimensions of the whitening filter and the second target matrix.

Optionally, when a whitening filter with dimension W is determined from one or more pre-stored whitening filter matrices, the first number of overlapping layers can be determined from one or more pre-stored whitening filter matrices. the corresponding second target matrix;

若确定第一重叠层数为K₂，则可以获取第一重叠层数对应的第二目标矩阵

For example, all optional overlap coefficients are K={K _j ,j=0,1,2,...}, and a set of optional data samples corresponding to each K value L={L _i ,i =0,1,2,…}. For each K _j , a corresponding whitening filter matrix of maximum dimension is stored

If it is determined that the first overlapping layer number is K ₂ , the second target matrix corresponding to the first overlapping layer number can be obtained

Optionally, after the second target matrix is determined, based on the dimension W of the whitening filter, based on the second target matrix, a matrix with dimension W may be determined as the whitening filter.

Optionally, in the case that the whitening filter matrix is the first whitening filter matrix, the determining the whitening filter based on the dimension of the whitening filter and the second target matrix includes:

Based on the dimension of the whitening filter, taking the first element of the second target matrix as the first element of the whitening filter, determine a sub-matrix of the second target matrix as the whitening filter .

Optionally, if the whitening filter matrix is the first whitening filter matrix, that is, all {K _j , L _i of the number of all data samples L _i corresponding to the number of overlapping layers K _j and the number of overlapping layers K _j } The whitening filter matrix of the largest dimension in all the whitening filters corresponding to the combination, so after determining that the dimension of the whitening filter is W, it can be determined that the dimension of the first whitening filter matrix is the submatrix of W is the whitening filter;

Specifically, when determining as the whitening filter, the first element of the second target matrix may be used as the first element of the whitening filter, and a sub-matrix of the second target matrix may be uniquely determined as the whitening filter.

则根据

获取

的规则为：

表示矩阵

是矩阵

从左上角第一个元素开始，分别按行和按列取n个元素得到的子矩阵。Optionally, assuming that the overlap coefficient corresponding to the current processing time slot is K _j and the number of sampling points in the time domain is n, the whitening filter corresponding to {L _j ,n}, that is, the L matrix, is denoted as

then according to

Obtain

The rules are:

representation matrix

is the matrix

Starting from the first element in the upper left corner, the submatrix obtained by taking n elements by row and column, respectively.

Optionally, when the whitening filter matrix is a second whitening filter matrix, the determining the whitening filter based on the dimension of the whitening filter and the second target matrix includes:

When the dimension of the second target matrix is greater than the dimension of the whitening filter, based on the dimension of the whitening filter, the first element of the second target matrix is the first element of the whitening filter. An element that determines a sub-matrix of the second target matrix as the whitening filter.

Optionally, if the whitening filter matrix is the second whitening filter matrix, then it is all {K _j , L _i of the number of all data samples L _i corresponding to the number of overlapping layers K _j and the number of overlapping layers K _j } Among all the whitening filters corresponding to the combination, a whitening filter matrix of the largest dimension that satisfies the constraints of the read-only memory (Read-Only Memory, ROM) capacity of the first communication device.

Therefore, if the dimension of the second target matrix is greater than the dimension of the whitening filter, then the first element of the second target matrix can be used as the first element of the whitening filter, and a second target matrix can be uniquely determined. Submatrix, which acts as a whitening filter.

Optionally, when the whitening filter matrix is a second whitening filter matrix, the determining the whitening filter based on the dimension of the whitening filter and the second target matrix includes:

In the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, sending a first request to the second communication device, where the first request is used to request the whitening filter;

Obtain the whitening filter sent by the second communication device.

Optionally, if the whitening filter matrix is the second whitening filter matrix, then it is all {K _j , L _i of a number of overlapping layers K _j and all data samples L _i corresponding to the number of overlapping layers K _j } Among all the whitening filters corresponding to the combination, a whitening filter matrix with the largest dimension that satisfies the constraint condition of the ROM capacity of the first communication device.

Therefore, there are cases where the dimension of the second target matrix is smaller than the dimension of the whitening filter.

Optionally, if the dimension of the second target matrix is smaller than the dimension of the whitening filter, and the sub-matrix of the second target matrix cannot be used as the whitening filter, a first request can be sent to the second communication device to request the whitening filter. ; the whitening filter returned by the second communication device may then be received.

Optionally, the first request may carry the dimension W of the whitening filter;

Optionally, the first request may also carry the first number of overlapping layers and the number of first time-domain sampling points.

Optionally, in the case where the first communication device is the network side, the whitening filter sent by the second communication device is carried by uplink control information (Uplink Control Information, UCI), or is carried by a physical uplink control channel (Physical Uplink Control Information, UCI). Uplink Control Channel, PUCCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) bearer.

Optionally, when the first communication device is the network side, when the second communication device sends the whitening filter, it may be carried by the uplink control information UCI, or may be carried by the PUCCH or the PUSCH.

Optionally, when the first communication device is the network side, when the second communication device sends the whitening filter, it may be carried by the uplink control information UCI, and the UCI may be carried by PUCCH or PUSCH.

Optionally, when the first communication device is a terminal, the whitening filter sent by the second communication device is carried by downlink control information (Downlink Control Information, DCI) or dedicated-RRC, or by physical A downlink control channel (Physical Downlink Control Channel, PDCCH) or a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) is carried.

Optionally, when the first communication device is the network side, when the second communication device sends the whitening filter, it may be carried by DCI or dedicated-RRC, or by PDCCH or PDSCH.

Optionally, when the first communication device is the network side, when the second communication device sends the whitening filter, it may be carried by DCI, and the DCI may be carried by PDCCH;

Optionally, when the first communication device is the network side, when the second communication device sends the whitening filter, it may be carried by a dedicated dedicated-RRC, and the dedicated dedicated-RRC may be carried by the PDSCH.

Optionally, when the first communication device is a terminal and the second communication device is a terminal, the whitening filter sent by the second communication device is carried by the sidelink control signaling SCI or other messages of the sidelink. , or, carried by a Physical Sidelink Control Channel (PSCCH) or a Physical Sidelink Shared Channel (PSSCH) or a Physical Sidelink Broadcast Channel (PSBCH).

Optionally, when the first communication device is a terminal and the second communication device is a terminal, when the second communication device sends the whitening filter, sidelink control signaling (system control information, SCI) or sidelink control signaling may be used. Other messages are carried, or, carried by PSCCH or PSSCH or PSBCH.

Optionally, when the first communication device is a terminal and the second communication device is a terminal, the second communication device may be carried by the SCI when sending the whitening filter, where the SCI may be carried by PSCCH or PSSCH.

Optionally, when the first communication device is a terminal and the second communication device is a terminal, when the second communication device sends the whitening filter, it may be carried by other messages of the sidelink, wherein other messages of the sidelink, such as S - MIB can be carried by PSSCH or PSBCH.

Optionally, when the whitening filter matrix is a second whitening filter matrix, the determining the whitening filter based on the dimension of the whitening filter and the second target matrix includes:

When the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is determined by the Cholesky decomposition algorithm based on the dimension of the whitening filter; or the whitening filter is determined based on the second target matrix the whitening filter.

Optionally, when the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is directly determined by an existing calculation method based on the dimension of the whitening filter;

Optionally, when the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is directly determined by a Cholesky decomposition algorithm based on the dimension of the whitening filter;

Alternatively, the Cholesky decomposition is the decomposition of a symmetric positive definite matrix expressed as the product of a lower triangular matrix L and its transpose. It requires that all eigenvalues of the matrix must be greater than zero, so the diagonal elements of the decomposed lower triangle are also greater than zero. The Cholesky decomposition method, also known as the square root method, is a modification of the LU triangular decomposition method when A is a real symmetric positive definite matrix.

Optionally, when the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is determined based on the dimension of the whitening filter and the second target matrix.

Optionally, the method further includes:

determining a shaping filter corresponding to the first transmission configuration information and the first transmission configuration information based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information;

sending second indication information to the second communication device, which is used to indicate the first transmission configuration information and the shaping filter corresponding to the first transmission configuration information;

The first transmission configuration information and the shaping filter corresponding to the first transmission configuration information are used by the second communication device to generate the first signal.

Optionally, before calculating the whitening filter, the dimension W of the whitening filter and the used shaping filter may be determined first, so the first transmission configuration information and the first transmission configuration for calculating the dimension W may be determined first. The shaping filter corresponding to the information;

Optionally, second indication information may be sent to the second communication device, indicating the determined first transmission configuration information and the shaping filter corresponding to the first transmission configuration information, for example, indicating {g(t),L _i ,K _i } ; The second communication device may generate an FTN signal, that is, the first signal, for transmission according to {g(t), L _i , K _i } determined by {g(t), L _i , L _i }.

FIG. 7 is a second schematic flowchart of a signal processing method provided by an embodiment of the present application, as shown in FIG. 7 , including the following steps:

Step 700, the second communication device indicates the second transmission configuration information to the first communication device;

Optionally, the second communication device may indicate second transmission configuration information to the first communication device, wherein the second transmission configuration information may include one or more sets of possible configurations.

For example, all optional overlapping coefficients can be included as K={K _j , j=0, 1, 2,...}, and one L _i corresponding to each K value, and a determined shaping filter, then it can be generated a first whitening filter matrix corresponding to the largest dimension

The first communication device may then determine one or more whitening filter matrices to pre-store based on the second transmission configuration information and determining the shaping filter used, and then store the one or more whitening filter matrices.

Optionally, it may be indicated by a table, and the table includes one or more groups of possible configurations, that is, an index corresponding to each configuration.

Step 710, the first communication device feeds back the first transmission configuration information to the second communication device;

Optionally, the first communication device may feed back the currently determined first transmission configuration information {g(t), L _i , K _j } to the second communication device through the UCI borne by the PUCCH or the data borne by the PUSCH, wherein, g(t) is the shaping filter used for determination, _{Li is the number of first time domain sampling points used for determination, and K j is} the number of first overlapping layers used for determination.

Optionally, the first communication device may feed back the first transmission configuration information to the second communication device by using an index corresponding to the first transmission configuration information in the table.

Step 720, the second communication device generates a first signal based on the first transmission configuration information;

Optionally, the second communication device may generate FTN signal transmission data, that is, the first signal, based on the first transmission configuration information {g(t), L _i , K _i }.

Step 730, the first communication device determines a whitening filter according to the first transmission configuration information.

Optionally, the first communication device may determine a whitening filter according to the first transmission configuration information and one or more pre-stored whitening filter matrices, and process the first signal.

FIG. 8 is a third schematic flowchart of a signal processing method provided by an embodiment of the present application, as shown in FIG. 8 , including the following steps:

Step 800, the second communication device indicates the second transmission configuration information to the first communication device;

Optionally, the second communication device may indicate second transmission configuration information to the first communication device, wherein the second transmission configuration information may include one or more sets of possible configurations.

For example, all optional overlapping coefficients can be included as K={K _j , j=0, 1, 2,...}, and one L _i corresponding to each K value, and a determined shaping filter, then it can be generated A first whitening filter matrix that satisfies the maximum dimension corresponding to each K value under the ROM capacity constraint of the first communication device

The first communication device may then determine one or more whitening filter matrices to pre-store based on the second transmission configuration information and determining the shaping filter used, and then store the one or more whitening filter matrices.

Optionally, it may be indicated by a table, and the table includes one or more groups of possible configurations, that is, an index corresponding to each configuration.

Step 810, the first communication device feeds back the first transmission configuration information to the second communication device;

Optionally, the first communication device may feed back the currently determined first transmission configuration information {g(t), L _i , K _j } to the second communication device through the UCI borne by the PUCCH or the data borne by the PUSCH, wherein, g(t) is the shaping filter used for determination, _{Li is the number of first time domain sampling points used for determination, and K j is} the number of first overlapping layers used for determination.

Optionally, the first communication device may feed back the first transmission configuration information to the second communication device by using an index corresponding to the first transmission configuration information in the table.

Step 820, the second communication device generates a first signal based on the first transmission configuration information;

Optionally, the second communication device may generate FTN signal transmission data, that is, the first signal, based on the first transmission configuration information {g(t), L _i , K _i }.

Step 830, the first communication device requests a whitening filter from the second communication device;

Optionally, the first communication device may determine the dimension W of the whitening filter according to the first transmission configuration information, and determine that the dimension of the second target matrix is smaller than the dimension of the whitening filter, then may send the second communication device to the second communication device. a request, request a whitening filter;

Optionally, the whitening filter matrix may be all the whitening filters corresponding to all {K _j , L _i } combinations of an overlapping layer number K _j and all the data sample numbers L _i corresponding to the overlapping layer number K _j . , which satisfies the whitening filter matrix of the largest dimension under the constraint condition of the ROM capacity of the first communication device.

Therefore, there are cases where the dimension of the second target matrix is smaller than the dimension of the whitening filter.

Optionally, if the dimension of the second target matrix is smaller than the dimension of the whitening filter, and the sub-matrix of the second target matrix cannot be used as the whitening filter, a first request can be sent to the second communication device to request the whitening filter. ; the whitening filter returned by the second communication device may then be received.

Optionally, the first request may carry the dimension W of the whitening filter;

Optionally, the first request may also carry the first number of overlapping layers and the number of first time-domain sampling points.

Step 840, the second communication device feeds back the whitening filter to the first communication device;

Optionally, after receiving the first request from the first communication device, the second communication device feeds back the whitening filter to the first communication device;

Optionally, the first communication device may receive a whitening filter fed back by the second communication device.

Step 850, the first communication device processes the first signal according to the whitening filter.

Optionally, the first communication device may process the first signal according to a whitening filter.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

It should be noted that, in the signal processing method provided by the embodiments of the present application, the execution body may be a signal processing apparatus, or a control module in the signal processing apparatus for executing the signal processing method. In the embodiment of the present application, the signal processing device provided by the embodiment of the present application is described by taking the signal processing method performed by the signal processing device as an example.

FIG. 9 is a schematic structural diagram of a signal processing apparatus provided by an embodiment of the present application. As shown in FIG. 9 , the apparatus includes: a first determination module 910 and a first processing module 920; wherein,

a first determining module 910, configured to determine a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices;

The first processing module 920 is configured to process, based on the whitening filter, the first signal transmitted based on the first transmission configuration information. One or more whitening filter matrices are stored to determine a whitening filter, and then the first processing module 920 processes the first signal transmitted based on the first transmission configuration information based on the whitening filter.

It should be noted here that the above-mentioned device provided by the embodiment of the present application can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, and the same as the method embodiment in this embodiment is not repeated here. The parts and beneficial effects will be described in detail.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

Optionally, the device further includes:

a second determination module, configured to determine the pre-stored one or more whitening filter matrices based on protocol pre-definition; or

a third determining module, configured to determine the pre-stored one or more whitening filter matrices based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information;

Wherein, the second transmission configuration information is predefined by the protocol or determined based on the indication information of the second communication device, and the shaping filter is predefined by the protocol or determined based on the indication information of the second communication device.

Optionally, the first transmission configuration information includes the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal;

Optionally, the second transmission configuration information includes one or more overlapping layer numbers, and one or more time-domain sampling points;

Wherein, the third determination module is used for:

For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the ROM capacity constraint of the first communication device. Optionally, the first determining module is used for:

determining the dimension of the whitening filter based on the first transmission configuration information;

The whitening filter is determined based on the dimensions of the whitening filter and the pre-stored one or more whitening filter matrices.

Optionally, the first determining module is used for:

Based on the first overlapping layer number, determining a second target matrix corresponding to the first overlapping layer number in the pre-stored one or more whitening filter matrices;

The whitening filter is determined based on the dimensions of the whitening filter and the second target matrix.

Optionally, the first determining module is used for:

In the case where the whitening filter matrix is the first whitening filter matrix, based on the dimension of the whitening filter, the first element of the second target matrix is the first element of the whitening filter , determine a sub-matrix of the second target matrix as the whitening filter.

Optionally, the first determining module is used for:

In the case where the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is larger than the dimension of the whitening filter, based on the dimension of the whitening filter, so The first element of the second target matrix is the first element of the whitening filter, and a sub-matrix of the second target matrix is determined as the whitening filter.

Optionally, the first determining module is used for:

In the case that the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, a first request is sent to the second communication device, and the The first request is used to request a whitening filter;

Obtain the whitening filter sent by the second communication device.

Optionally, when the first communication device is the network side, the whitening filter sent by the second communication device is carried by the uplink control information UCI, or is carried by the PUCCH or the PUSCH.

Optionally, when the first communication device is a terminal, the whitening filter sent by the second communication device is carried by DCI or dedicated-RRC, or is carried by PDCCH or PDSCH.

Optionally, when the first communication device is a terminal and the second communication device is a terminal, the whitening filter sent by the second communication device is carried by the sidelink control signaling SCI or other messages of the sidelink. , or, carried by PSCCH or PSSCH or PSBCH.

Optionally, the first determining module is used for:

In the case where the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, based on the dimension of the whitening filter, through Cholesky A decomposition algorithm determines the whitening filter; or the whitening filter is determined based on the second target matrix.

Optionally, the device further includes:

a fourth determining module, configured to determine the shaping filter corresponding to the first transmission configuration information and the first transmission configuration information based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information;

a first sending module, configured to send second indication information to a second communication device, used to indicate the first transmission configuration information and a shaping filter corresponding to the first transmission configuration information;

The first transmission configuration information and the shaping filter corresponding to the first transmission configuration information are used by the second communication device to generate the first signal.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

The signal processing apparatus in this embodiment of the present application may be an apparatus or electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The electronic device may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television) , TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The signal processing apparatus provided in the embodiments of the present application can implement the various processes implemented by the method embodiments in FIG. 2 to FIG. 8 , and achieve the same technical effect. To avoid repetition, details are not described here.

Optionally, FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 10 , a communication device 1000 includes a processor 1001 and a memory 1002 , which are stored in the memory 1002 and can be stored in the processor 1001 For example, when the communication device 1000 is a terminal, when the program or instruction is executed by the processor 1001, each process of the above method embodiments can be implemented, and the same technical effect can be achieved. When the communication device 1000 is a network side device, when the program or instruction is executed by the processor 1001, each process of the above method embodiments can be implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.

Optionally, the first communication device may be a network side device, and the second communication device may be a terminal;

Optionally, the second communication device may be a network side device, and the first communication device may be a terminal;

Optionally, the first communication device may be a terminal, and the second communication device may be a terminal.

FIG. 11 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application.

The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110, etc. at least part of the components.

Those skilled in the art can understand that the terminal 1100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 1104 may include a graphics processor (Graphics Processing Unit, GPU) 11041 and a microphone 11042. camera) to process the image data of still pictures or videos. The display unit 1106 may include a display panel 11061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes a touch panel 11071 and other input devices 11072 . The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts, a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.

In the embodiment of the present application, the radio frequency unit 1101 receives the information from the communication peer end, and then processes it to the processor 1110; in addition, sends the information to be transmitted to the communication peer end. Generally, the radio frequency unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1109 may be used to store software programs or instructions as well as various data. The memory 1109 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 1109 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1110.

Among them, the processor 1110 is used for:

The first communication device determines a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices;

The first communication device processes the first signal transmitted based on the first transmission configuration information based on the whitening filter.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

Optionally, processor 1110 is used to:

determining the pre-stored one or more whitening filter matrices based on protocol pre-definition; or

determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and a shaping filter corresponding to the second transmission configuration information;

Wherein, the second transmission configuration information is predefined by the protocol or determined based on the indication information of the second communication device, and the shaping filter is predefined by the protocol or determined based on the indication information of the second communication device.

Optionally, the first transmission configuration information includes the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal.

Optionally, the second transmission configuration information includes one or more overlapping layers, and one or more time-domain sampling points;

Processor 1110 is used to:

For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the ROM capacity constraint of the first communication device.

Optionally, processor 1110 is used to:

determining the dimension of the whitening filter based on the first transmission configuration information;

The whitening filter is determined based on the dimensions of the whitening filter and the pre-stored one or more whitening filter matrices.

Optionally, processor 1110 is used to:

Based on the first overlapping layer number, determining a second target matrix corresponding to the first overlapping layer number in the pre-stored one or more whitening filter matrices;

The whitening filter is determined based on the dimensions of the whitening filter and the second target matrix.

Optionally, processor 1110 is used to:

In the case where the whitening filter matrix is the first whitening filter matrix, based on the dimension of the whitening filter, the first element of the second target matrix is the first element of the whitening filter , determine a sub-matrix of the second target matrix as the whitening filter.

Optionally, processor 1110 is used to:

In the case where the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is larger than the dimension of the whitening filter, based on the dimension of the whitening filter, so The first element of the second target matrix is the first element of the whitening filter, and a sub-matrix of the second target matrix is determined as the whitening filter.

Optionally, processor 1110 is used to:

In the case that the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, a first request is sent to the second communication device, and the The first request is used to request a whitening filter;

Obtain the whitening filter sent by the second communication device.

Optionally, when the first communication device is the network side, the whitening filter sent by the second communication device is carried by the uplink control information UCI, or is carried by the PUCCH or the PUSCH.

Optionally, when the first communication device is a terminal, the whitening filter sent by the second communication device is carried by DCI or dedicated-RRC, or is carried by PDCCH or PDSCH.

Optionally, when the first communication device is a terminal and the second communication device is a terminal, the whitening filter sent by the second communication device is carried by the sidelink control signaling SCI or other messages of the sidelink. , or, carried by PSCCH or PSSCH or PSBCH.

Optionally, when the whitening filter matrix is the second whitening filter matrix, the processor 1110 is configured to:

When the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is determined by the Cholesky decomposition algorithm based on the dimension of the whitening filter; or the whitening filter is determined based on the second target matrix the whitening filter.

Optionally, processor 1110 is used to:

determining a shaping filter corresponding to the first transmission configuration information and the first transmission configuration information based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information;

sending second indication information to the second communication device, which is used to indicate the first transmission configuration information and the shaping filter corresponding to the first transmission configuration information;

The first transmission configuration information and the shaping filter corresponding to the first transmission configuration information are used by the second communication device to generate the first signal.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

The terminal embodiments in the embodiments of the present application are product embodiments corresponding to the foregoing method embodiments, and all implementation manners in the foregoing method embodiments are applicable to the terminal embodiments, and the same or similar technical effects can also be achieved. This will not be repeated here.

FIG. 12 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.

As shown in FIG. 12 , the network side device 1200 includes: an antenna 1201 , a radio frequency device 1202 , and a baseband device 1203 . The antenna 1201 is connected to the radio frequency device 1202 . In the uplink direction, the radio frequency device 1202 receives information through the antenna 1201, and sends the received information to the baseband device 1203 for processing. In the downlink direction, the baseband device 1203 processes the information to be sent and sends it to the radio frequency device 1202 , and the radio frequency device 1202 processes the received information and sends it out through the antenna 1201 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1203 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1203 . The baseband apparatus 1203 includes a processor 1204 and a memory 1205 .

The baseband device 1203 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 12 , one of the chips is, for example, the processor 1204 , which is connected to the memory 1205 to call the program in the memory 1205 to execute The network devices shown in the above method embodiments operate.

The baseband device 1203 may further include a network interface 1206 for exchanging information with the radio frequency device 1202, and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the network-side device in this embodiment of the present application further includes: instructions or programs that are stored in the memory 1205 and run on the processor 1204, and the processor 1204 invokes the instructions or programs in the memory 1205 to execute the modules shown in FIG. 9 . The implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

Among them, the processor 1204 is used for:

determining a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices, the whitening filter for processing the first signal transmitted based on the first transmission configuration information;

The first transmission configuration information includes the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

Optionally, processor 1204 is used to:

determining the pre-stored one or more whitening filter matrices based on protocol pre-definition; or

determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and a shaping filter corresponding to the second transmission configuration information;

Wherein, the second transmission configuration information is predefined by the protocol or determined based on the indication information of the second communication device, and the shaping filter is predefined by the protocol or determined based on the indication information of the second communication device.

Optionally, the first transmission configuration information includes the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal;

Optionally, the second transmission configuration information includes one or more overlapping layer numbers, and one or more time-domain sampling points;

Among them, the processor 1204 is used for:

For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the ROM capacity constraint of the first communication device.

Optionally, processor 1204 is used to:

determining the dimension of the whitening filter based on the first transmission configuration information;

The whitening filter is determined based on the dimensions of the whitening filter and the pre-stored one or more whitening filter matrices.

Optionally, processor 1204 is used to:

Based on the first overlapping layer number, determining a second target matrix corresponding to the first overlapping layer number in the pre-stored one or more whitening filter matrices;

The whitening filter is determined based on the dimensions of the whitening filter and the second target matrix.

Optionally, processor 1204 is used to:

In the case where the whitening filter matrix is the first whitening filter matrix, based on the dimension of the whitening filter, the first element of the second target matrix is the first element of the whitening filter , determine a sub-matrix of the second target matrix as the whitening filter.

Optionally, processor 1204 is used to:

In the case where the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is larger than the dimension of the whitening filter, based on the dimension of the whitening filter, so The first element of the second target matrix is the first element of the whitening filter, and a sub-matrix of the second target matrix is determined as the whitening filter.

Optionally, processor 1204 is used to:

In the case that the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, a first request is sent to the second communication device, and the The first request is used to request a whitening filter;

Obtain the whitening filter sent by the second communication device.

Optionally, when the first communication device is the network side, the whitening filter sent by the second communication device is carried by the uplink control information UCI, or is carried by the PUCCH or the PUSCH.

Optionally, when the first communication device is a terminal, the whitening filter sent by the second communication device is carried by DCI or dedicated-RRC, or is carried by PDCCH or PDSCH.

Optionally, when the first communication device is a terminal and the second communication device is a terminal, the whitening filter sent by the second communication device is carried by the sidelink control signaling SCI or other messages of the sidelink. , or, carried by PSCCH or PSSCH or PSBCH.

Optionally, when the whitening filter matrix is the second whitening filter matrix, the processor 1204 is configured to:

When the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is determined by the Cholesky decomposition algorithm based on the dimension of the whitening filter; or the whitening filter is determined based on the second target matrix the whitening filter.

Optionally, processor 1204 is used to:

determining a shaping filter corresponding to the first transmission configuration information and the first transmission configuration information based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information;

sending second indication information to the second communication device, which is used to indicate the first transmission configuration information and the shaping filter corresponding to the first transmission configuration information;

The first transmission configuration information and the shaping filter corresponding to the first transmission configuration information are used by the second communication device to generate the first signal.

In this embodiment of the present application, one or more whitening filters are pre-stored in the first communication device; when the configuration changes, an available whitening filter suitable for the current service configuration is calculated based on the pre-stored whitening filters. The complexity of receiver design is reduced, and optimized performance can be obtained in different scenarios according to receiver capability and channel state changes, reducing the complexity of the whitening filter required by the receiver side to calculate the receiver of the FTN system, Make it easier to engineer.

The network-side device embodiments in the embodiments of the present application are product embodiments corresponding to the foregoing method embodiments, and all implementation manners in the foregoing method embodiments are applicable to the network-side device embodiments, and can also achieve the same or similar technologies effect, so it is not repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the above signal processing method Each process of the embodiment can achieve the same technical effect, and to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional elements in the process, method, article, or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a communication device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (26)

1. A signal processing method, wherein the method comprises: The first communication device determines a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices; The first communication device processes the first signal transmitted based on the first transmission configuration information based on the whitening filter. 2. The signal processing method according to claim 1, wherein the method further comprises: determining the pre-stored one or more whitening filter matrices based on protocol pre-definition; or determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and a shaping filter corresponding to the second transmission configuration information; Wherein, the second transmission configuration information is predefined by the protocol or determined based on the indication information of the second communication device, and the shaping filter is predefined by the protocol or determined based on the indication information of the second communication device. 3 . The signal processing method according to claim 1 , wherein the first transmission configuration information comprises the number of first overlapping layers and the number of first time-domain sampling points corresponding to the first signal. 4 . 4. The signal processing method according to claim 2, wherein the second transmission configuration information comprises one or more overlapping layer numbers, and one or more time domain sampling points; Wherein, determining the pre-stored one or more whitening filter matrices based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information includes: For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the condition of the read-only memory ROM capacity constraint of the first communication device. 5. The signal processing method according to claim 4, wherein the first communication device determines a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices, comprising: determining the dimension of the whitening filter based on the first transmission configuration information; The whitening filter is determined based on the dimensions of the whitening filter and the pre-stored one or more whitening filter matrices. 6 . The signal processing method according to claim 5 , wherein the determining the whitening filter based on the dimension of the whitening filter and the pre-stored one or more whitening filter matrices comprises: 6 . : Based on the first overlapping layer number, determining a second target matrix corresponding to the first overlapping layer number in the pre-stored one or more whitening filter matrices; The whitening filter is determined based on the dimensions of the whitening filter and the second target matrix. 7 . The signal processing method according to claim 6 , wherein, when the whitening filter matrix is a first whitening filter matrix, the dimension based on the whitening filter and the second whitening filter The target matrix, which determines the whitening filter, includes: Based on the dimension of the whitening filter, taking the first element of the second target matrix as the first element of the whitening filter, determine a sub-matrix of the second target matrix as the whitening filter . 8 . The signal processing method according to claim 6 , wherein, when the whitening filter matrix is a second whitening filter matrix, the dimension based on the whitening filter and the second whitening filter matrix The target matrix, which determines the whitening filter, includes: When the dimension of the second target matrix is greater than the dimension of the whitening filter, based on the dimension of the whitening filter, the first element of the second target matrix is the first element of the whitening filter. An element that determines a sub-matrix of the second target matrix as the whitening filter. 9 . The signal processing method according to claim 6 , wherein, when the whitening filter matrix is a second whitening filter matrix, the dimension based on the whitening filter and the second whitening filter matrix The target matrix, which determines the whitening filter, includes: In the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, sending a first request to the second communication device, where the first request is used to request the whitening filter; Obtain the whitening filter sent by the second communication device. 10. The signal processing method according to claim 9, wherein, when the first communication device is a network side, the whitening filter sent by the second communication device is carried by uplink control information UCI, or , which is carried by the physical uplink control channel PUCCH or the physical uplink shared channel PUSCH. 11 . The signal processing method according to claim 9 , wherein when the first communication device is a terminal, the whitening filter sent by the second communication device is determined by downlink control information DCI or dedicated- The RRC is carried, or is carried by the physical downlink control channel PDCCH or the physical downlink shared channel PDSCH. 12 . The signal processing method according to claim 9 , wherein, when the first communication device is a terminal and the second communication device is a terminal, the whitening filter sent by the second communication device The controller is carried by the sidelink control signaling SCI or other messages of the sidelink, or is carried by the physical bypass control channel PSCCH or the physical bypass shared channel PSSCH or the physical bypass broadcast channel PSBCH. 13 . The signal processing method according to claim 6 , wherein, in the case that the whitening filter matrix is a second whitening filter matrix, the The target matrix, which determines the whitening filter, includes: When the dimension of the second target matrix is smaller than the dimension of the whitening filter, the whitening filter is determined by the Cholesky decomposition algorithm based on the dimension of the whitening filter; or the whitening filter is determined based on the second target matrix the whitening filter. 14. The signal processing method according to claim 2, wherein the method further comprises: determining a shaping filter corresponding to the first transmission configuration information and the first transmission configuration information based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information; sending second indication information to the second communication device, which is used to indicate the first transmission configuration information and the shaping filter corresponding to the first transmission configuration information; The first transmission configuration information and the shaping filter corresponding to the first transmission configuration information are used for the second communication device to generate the first signal. 15. A signal processing device, characterized in that the device comprises: a first determining module, configured to determine a whitening filter based on the first transmission configuration information and one or more pre-stored whitening filter matrices; A first processing module, configured to process, based on the whitening filter, the first signal transmitted based on the first transmission configuration information. 16. The signal processing apparatus according to claim 15, wherein the apparatus further comprises: a second determining module, configured to determine the pre-stored one or more whitening filter matrices based on protocol pre-definition; or a third determining module, configured to determine the pre-stored one or more whitening filter matrices based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information; Wherein, the second transmission configuration information is predefined by the protocol or determined based on the indication information of the second communication device, and the shaping filter is predefined by the protocol or determined based on the indication information of the second communication device. 17. The signal processing apparatus according to claim 16, wherein the second transmission configuration information comprises one or more overlapping layer numbers, and one or more time domain sampling points; Wherein, the third determining module is used for: For one or more overlapping layers, based on one or more time-domain sampling points corresponding to each overlapping layer, and the shaping filter, determine the first whitening filter of the largest dimension corresponding to each overlapping layer filter matrix, or a second whitening filter matrix with the largest dimension corresponding to the number of overlapping layers under the ROM capacity constraint of the first communication device. 18. The signal processing apparatus according to claim 17, wherein the first determining module is configured to: determining the dimension of the whitening filter based on the first transmission configuration information; The whitening filter is determined based on the dimensions of the whitening filter and the pre-stored one or more whitening filter matrices. 19. The signal processing apparatus according to claim 18, wherein the first determining module is configured to: Based on the first overlapping layer number, determining a second target matrix corresponding to the first overlapping layer number in the pre-stored one or more whitening filter matrices; The whitening filter is determined based on the dimensions of the whitening filter and the second target matrix. 20. The signal processing apparatus according to claim 19, wherein the first determination module is used for: In the case where the whitening filter matrix is the first whitening filter matrix, based on the dimension of the whitening filter, the first element of the second target matrix is used as the first element of the whitening filter , determine a sub-matrix of the second target matrix as the whitening filter. 21. The signal processing apparatus according to claim 19, wherein the first determination module is used for: In the case where the whitening filter matrix is the second whitening filter matrix, in the case that the dimension of the second target matrix is larger than the dimension of the whitening filter, based on the dimension of the whitening filter, so The first element of the second target matrix is the first element of the whitening filter, and a sub-matrix of the second target matrix is determined as the whitening filter. 22. The signal processing apparatus according to claim 19, wherein the first determination module is used for: In the case that the whitening filter matrix is the second whitening filter matrix, and in the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, a first request is sent to the second communication device, and the The first request is used to request a whitening filter; Obtain the whitening filter sent by the second communication device. 23. The signal processing apparatus according to claim 19, wherein the first determining module is configured to: In the case that the whitening filter matrix is a second whitening filter matrix, in the case that the dimension of the second target matrix is smaller than the dimension of the whitening filter, based on the dimension of the whitening filter, through Cholesky A decomposition algorithm determines the whitening filter; or the whitening filter is determined based on the second target matrix. 24. The signal processing apparatus according to claim 16, wherein the apparatus further comprises: a fourth determining module, configured to determine the shaping filter corresponding to the first transmission configuration information and the first transmission configuration information based on the second transmission configuration information and the shaping filter corresponding to the second transmission configuration information; a first sending module, configured to send second indication information to a second communication device, used to indicate the first transmission configuration information and a shaping filter corresponding to the first transmission configuration information; The first transmission configuration information and the shaping filter corresponding to the first transmission configuration information are used for the second communication device to generate the first signal. 25. A communication device, characterized in that it comprises a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction being implemented when executed by the processor The steps of the signal processing method according to any one of claims 1 to 14. 26. A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, the method according to any one of claims 1 to 14 is implemented. The steps of a signal processing method.

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