WO2019148386A1

WO2019148386A1 - Signal detection method and related devices

Info

Publication number: WO2019148386A1
Application number: PCT/CN2018/074792
Authority: WO
Inventors: 王雪松; 田智
Original assignee: 华为技术有限公司
Priority date: 2018-01-31
Filing date: 2018-01-31
Publication date: 2019-08-08

Abstract

Disclosed are a signal detection method and related devices, for use in eliminating the use of a pilot signal, thereby reducing communication overhead. The method in the embodiments of the present application comprises: a receiver device obtains a received signal, the received signal being a transmitted signal subjected to channel fading and sent by a sender device; the receiver device obtains a channel fading estimation value according to the received signal; the receiver device detects the transmitted signal according to the channel fading estimation value to obtain a detection result.

Description

Signal detection method and related equipment

Technical field

The present application relates to the field of communications technologies, and in particular, to a signal detection method and related equipment.

Background technique

Channel estimation is one of the basic technologies in wireless communication systems. Due to the uncertainty of the wireless channel, the data signal will experience unknown channel fading during transmission from the transmitter to the receiver. In order to receive data correctly, the receiver needs to find out the Channel State Information (CSI) including channel fading. This process is called channel estimation. Due to the vital significance of channel estimation for wireless communication systems, a great deal of in-depth research on channel estimation has been conducted in industry and academia for a long time.

In current actual wireless communication systems, a pilot based channel estimation scheme is commonly used. Specifically, the transmitter transmits a signal p known by the receiver at certain time/frequency positions in addition to the data signal in accordance with a pre-agreed pattern of the transceiver.

The so-called Pilot Signal (PS) or Reference Signal (RS), where M ≥ N _t , N _t is the number of transmitting antennas. The pilot signal y _p received by the receiver that has experienced fading can be expressed as y _p =Hp+n, where

For channel fading, N _r is the number of receiving antennas and n is the local noise. The receiver then obtains an estimate for H based on y _p

. Take the linear Minimum Mean Square Error (LMMSE) algorithm widely used in practical products as an example. In this algorithm,

A linear transformation y _p T selected as y _p , where T is a linear transformation matrix. The receiver needs to minimize the mean square error between the estimated value of the channel fading and the true value by selecting an appropriate T.

Where |||| _F represents the F norm. To solve the optimization problem, the linear transformation matrix satisfying the minimum condition of the mean square error is T _mmse = p ^H (pp ^H + σ ² I) ^-1 , where σ ² is the variance of the local noise. then

The required estimate of channel fading is obtained. Since the pilot and data signals experience the same channel fading, the receiver can estimate the resulting

Used for receiving data signals.

The main problem of the above solution is that the transmitter needs to allocate a part of the channel resources that can be used for transmitting data to transmit the pilot signal, thereby causing an increase in overhead, and more importantly, the pilot overhead is increased with the number of transmitting antennas. And quadratic increases, the pilot overhead is still acceptable for single antenna systems. However, in the LTE system, the transmitter can be equipped with up to 8 antennas, and the overhead of the pilot is considerable. In the next generation of cellular communication standard new air interface (NR), a high-frequency antenna array (Massive Multiple-Input Multiple-Output, Massive-MIMO) composed of several tens of hundreds of antennas will be used at high frequencies. The pilot overhead will be unacceptable.

Summary of the invention

The present application provides a signal detection method and related equipment for eliminating the use of pilot signals, thereby saving communication overhead.

In view of this, the first aspect of the present application provides a signal detection method, including:

The transmitting device acquires the original signal;

The transmitting device obtains a transmission signal according to the original signal;

Transmitting, by the sending end device, the transmitting signal to the receiving end device, so that the receiving end device receives a receiving signal, where the received signal is the transmitting signal that is sent by the sending end device and has experienced channel fading .

In the current wireless communication system, the transmitting device needs to transmit a pilot signal before transmitting the data signal to the receiving device, so that the receiving device can know the channel fading condition, and thus correctly receive the data signal. In the application, the transmitting end device does not need to send a pilot signal, and the transmitting end device sends a transmitting signal to the receiving end device, and the receiving end device receives the transmitting signal sent by the transmitting end device, and the transmitting signal experiences channel fading and local noise interference during channel transmission. The receiving device actually receives the signal and records it as the receiving signal, and the receiving device obtains the channel fading estimation value according to the received signal, and the receiving device detects the transmitted signal according to the channel fading estimation value, and obtains the detection result, and the solution can pass the receiving end device. The obtained received signal obtains a channel fading estimation value, and then detects the transmitted signal according to the channel fading estimation value, thereby obtaining channel state information such as channel fading condition. Therefore, the pilot signal can be no longer used, thereby saving communication overhead.

With reference to the first aspect of the present application, in the first implementation manner of the first aspect of the present application, the sending end device obtains a transmission signal according to the original signal, including:

The transmitting end device encodes and modulates the original signal to obtain a transmitting signal, where the transmitting signal is a modulation sequence.

The original signal may be an analog signal or a digital signal, and if the transmission condition of the transmitting device is to be achieved, the transmitting device needs to be processed as a transmitting signal, which may be a code modulation process.

With reference to the first embodiment of the first aspect of the present application, in the second implementation manner of the first aspect of the present application, the sending end device sends the transmitting signal to the receiving end device, including:

The transmitting device performs linear precoding on the transmit signal;

The transmitting end device sends the linear pre-coded transmission signal to the receiving end device through a channel.

In the process of transmitting the transmitting signal, the transmitting device is obtained by encoding and modulating the original signal by the transmitting device, and the transmitting signal is a modulation sequence, and the transmitting signal is linearly pre-prepared before the transmitting device transmits the transmitting signal. Encoding, and then transmitting the linear precoded transmitted signal through the channel.

With reference to the first aspect of the present application, in the third implementation manner of the first aspect of the present application, the sending end device obtains a transmission signal according to the original signal, including:

The transmitting end device performs constant amplitude modulation on the original signal to obtain a transmitting signal, and the transmitting signal is a constant amplitude modulation sequence.

Another way to process the original signal into a transmitted signal is constant amplitude modulation, ie, the original signal is changed to a constant amplitude modulation sequence.

With reference to the third embodiment of the first aspect of the present application, in the fourth implementation manner of the first aspect of the present application, the sending end device sends the transmitting signal to the receiving end device, including:

Transmitting, by the transmitting device, differential coding and modulation on the transmit signal to obtain a differential coding sequence;

The transmitting device performs linear precoding on the differential coding sequence;

The transmitting end device sends the linear pre-coded differential coding sequence to the receiving end device through a channel.

The transmitting signal is obtained by the transmitting end device performing constant amplitude modulation on the original signal, and the transmitting signal is a constant amplitude modulation sequence. Before the transmitting end device transmits the transmitting signal, the transmitting signal is differentially coded and modulated to obtain a differential encoding sequence, and then the differential encoding sequence is obtained. The differential coding sequence is linearly precoded, and the transmitting end device transmits the linear precoded differential coding sequence to the receiving end device through the channel.

The second aspect of the present application provides a signal detection method, including:

Receiving, by the receiving device, a received signal, where the received signal is a channel fading transmitting signal sent by the sending end device;

The receiving end device obtains a channel fading estimation value according to the received signal;

The receiving end device detects the transmitted signal according to the channel fading estimation value, and obtains a detection result.

In the current wireless communication system, the transmitting device needs to transmit a pilot signal before transmitting the data signal to the receiving device, so that the receiving device can know the channel fading condition, and thus correctly receive the data signal. In the application, the transmitting end device does not need to send the pilot signal, the transmitting end device sends the transmitting signal to the receiving end device, the receiving end device acquires the receiving signal, and the receiving end device obtains the channel fading estimation value in the transmitting and receiving process of the transmitting signal according to the received signal, and the receiving end device according to the receiving end device The channel fading estimate detects the transmitted signal and obtains the detection result. The scheme can obtain the channel fading estimation value through the received signal obtained by the receiving device, and then detect the transmitted signal according to the channel fading estimation value, thereby obtaining channel state information such as channel fading status, and therefore, the pilot signal can be no longer used. Thereby saving communication overhead.

With reference to the second aspect of the present application, in the first implementation manner of the second aspect of the present application, the receiving end device obtains a channel fading estimation value according to the received signal, including:

The receiving end device obtains a channel fading value of the transmitting signal according to the received signal;

The receiving end device performs maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.

For the receiving device, the techniques used by the transmitting device to process and transmit the transmitted signal are known. After receiving the received signal, the receiving device can calculate the channel fading value according to the received signal and the transmitted signal. The fading value is calculated by the maximum likelihood estimation to obtain a channel fading estimate.

With reference to the first embodiment of the second aspect of the present application, in the second implementation manner of the second aspect of the present application, the receiving end device detects the transmitting signal according to the channel fading estimation value, and obtains a detection result, including:

The receiving end device obtains a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value;

The receiving end device obtains all the detected values of the transmitted signal according to the signal detection decision criterion;

The receiving end device obtains a detection result according to the detected value.

The receiving end device obtains a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value, and the preset decision criterion is provided by the user in advance, and specifically, which formula is used is not limited, since it is known that the transmission signal is coded and modulated. The modulation sequence, then the detection value of all the transmitted signals needs to be obtained according to the signal detection decision criterion, and the detection result is obtained by traversing the detection values of all the transmitted signals.

With reference to the second aspect of the present application, in the third implementation manner of the second aspect of the present application, the receiving end device obtains a channel fading estimation value according to the received signal, including:

The receiving end device obtains a channel fading value of the differential coding sequence according to the received signal;

Since the generating mode and processing manner of the transmitting signal are known to the receiving end device, the receiving end device can obtain a differential encoding sequence corresponding to the transmitted signal, and can calculate the channel fading value according to the received signal and the transmitted signal, and maximize the channel fading value. The likelihood estimation is calculated to obtain a channel fading estimate.

With reference to the third embodiment of the second aspect of the present application, in the fourth implementation manner of the second aspect of the present application, the receiving end device detects the transmitting signal according to the channel fading estimation value, and obtains a detection result, including:

The receiving end device obtains a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value;

The receiving end device detects a decision criterion according to the signal, and obtains a detection value of the transmitted signal by using a grid-based algorithm;

Since the transmitted signal is obtained by constant amplitude modulation, the receiving end device obtains a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion and the channel fading estimation value, and obtains the detected value of the transmitted signal according to the signal detection decision criterion by using an algorithm. The detection result is obtained according to the detected value, and the algorithm may be a Veterbi algorithm or a ball decoding.

The third aspect of the present application provides a sending end device, including:

a receiving module, configured to acquire an original signal;

a processing module, configured to obtain a transmit signal according to the original signal;

a sending module, configured to send the transmitting signal to the receiving end device, so that the receiving end device receives a receiving signal, where the received signal is the transmitting signal that is sent by the sending end device and has experienced channel fading .

In the current wireless communication system, the transmitting device needs to transmit a pilot signal before transmitting the data signal to the receiving device, so that the receiving device can know the channel fading condition, and thus correctly receive the data signal. In the application, the pilot signal is not required to be sent, the receiving module acquires the original signal, the processing module obtains the transmitting signal according to the original signal, the transmitting module sends the transmitting signal to the receiving device, and the receiving device receives the transmitting signal sent by the transmitting device, and the transmitting signal is During channel transmission, the channel fading and local noise interference are experienced. The receiving device actually receives the signal and records it as the received signal. The receiving device obtains the channel fading estimation value according to the received signal, and the receiving device extracts the signal according to the channel fading estimation value. Performing detection and obtaining the detection result, the scheme can obtain the channel fading estimation value through the received signal obtained by the receiving end device, and then detect the transmitted signal according to the channel fading estimation value, thereby obtaining channel state information such as channel fading status, and thus, no longer Pilot signal, thereby saving communication overhead.

With reference to the third aspect of the present application, in the first embodiment of the third aspect of the present application,

The processing module is specifically configured to perform coding and modulation on the original signal to obtain a transmission signal, where the transmission signal is a modulation sequence.

The original signal may be an analog signal or a digital signal, and if the transmission condition of the transmitting device is to be achieved, the processing module needs to be processed as a transmitting signal, and specifically, the processing module performs code modulation processing.

With reference to the first embodiment of the third aspect of the present application, in the second implementation manner of the third aspect of the present application,

The processing module is further configured to perform linear precoding on the transmit signal;

The sending module is further configured to send the linear pre-coded transmit signal to the receiving end device by using a channel.

The transmitting signal is obtained by encoding and modulating the original signal by the processing module. The transmitting signal is a modulation sequence. Before the transmitting module sends the transmitting signal, the processing module also performs linear precoding on the transmitted signal, and then the transmitting module sends the linear pre-channel through the channel. The encoded transmitted signal.

With reference to the third aspect of the present application, in the third embodiment of the third aspect of the present application,

The processing module is specifically configured to perform constant amplitude modulation on the original signal to obtain a transmission signal, where the transmission signal is a constant amplitude modulation sequence.

Another way in which the processing module processes the original signal into a transmitted signal is constant amplitude modulation, ie, the original signal is changed to a constant amplitude modulation sequence.

With reference to the third embodiment of the third aspect of the present application, in the fourth implementation manner of the third aspect of the present application,

The processing module is further configured to perform differential coding modulation on the transmit signal to obtain a differential coding sequence.

The processing module is further configured to perform linear precoding on the differential coding sequence;

The sending module is further configured to send the linear precoded differential code sequence to a receiving end device by using a channel.

The transmitting signal is obtained by the processing module performing constant amplitude modulation on the original signal, and the transmitting signal is a modulation sequence. Before the transmitting module transmits the transmitting signal, the processing module first differentially encodes and modulates the transmitted signal to obtain a differential encoding sequence, and then pairs the difference. The coding sequence is linearly precoded, and the transmitting module transmits the linear precoded differential coding sequence to the receiving end device through the channel.

The fourth aspect of the present application provides a receiving end device, including:

a receiving module, configured to acquire a received signal, where the received signal is a channel fading transmitting signal sent by the sending end device;

a processing module, configured to obtain a channel fading estimation value according to the received signal;

The processing module is further configured to detect the transmit signal according to the channel fading estimation value, to obtain a detection result.

In the current wireless communication system, the transmitting device needs to transmit a pilot signal before transmitting the data signal to the receiving device, so that the receiving device can know the channel fading condition, and thus correctly receive the data signal. In the application, the transmitting end device does not need to send the pilot signal, the transmitting end device sends the transmitting signal to the receiving end device, the receiving module acquires the receiving signal, and the processing module obtains the channel fading estimation value in the transmitting and receiving process of the transmitting signal according to the received signal, and the processing module estimates the channel fading according to the channel fading. The value is detected on the transmitted signal to obtain the detection result. The scheme can obtain the channel fading estimation value through the received signal obtained by the receiving device, and then detect the transmitted signal according to the channel fading estimation value, thereby obtaining channel state information such as channel fading status, and therefore, the pilot signal can be no longer used. Thereby saving communication overhead.

With reference to the fourth aspect of the present application, in the first implementation manner of the fourth aspect of the present application,

The processing module is further configured to obtain a channel fading value of the transmit signal according to the received signal;

The processing module is further configured to perform a maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.

For the receiving device, the techniques used by the transmitting device to process and transmit the transmitted signal are known. After receiving the received signal, the processing module can calculate the channel fading value according to the received signal and the transmitted signal, and the channel fading is performed. The value is subjected to maximum likelihood estimation calculation to obtain a channel fading estimate.

With reference to the first embodiment of the fourth aspect of the present application, in the second implementation manner of the fourth aspect of the present application,

The processing module is further configured to obtain a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value;

The processing module is further configured to obtain, according to the signal detection decision criterion, all detected values of the transmit signal;

The processing module is further configured to obtain a detection result according to the detection value.

The processing module obtains a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value, and the preset decision criterion is provided by the user in advance, and specifically, which formula is used is not limited, since the transmission signal is known to be coded and modulated. The modulation sequence, then the processing module needs to obtain the detection values of all the transmitted signals according to the signal detection decision criterion, and traverse the detected values of all the transmitted signals to obtain the detection result.

With reference to the fourth aspect of the present application, in the third embodiment of the fourth aspect of the present application,

The processing module is further configured to obtain a channel fading value of the differential coding sequence according to the received signal;

Since the generating mode and the processing manner of the transmitting signal are known to the receiving end device, the processing module can obtain a differential encoding sequence corresponding to the transmitted signal, and the channel fading value can be calculated according to the received signal and the transmitted signal, and the channel fading value is maximized. However, the calculation is estimated to obtain a channel fading estimate.

With reference to the third embodiment of the fourth aspect of the present application, in the fourth implementation manner of the fourth aspect of the present application,

The processing module is further configured to obtain a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value;

The processing module is further configured to: according to the signal detection decision criterion, obtain a detection value of the transmit signal by using a grid-based algorithm;

Since the transmitted signal is obtained by constant amplitude modulation, the processing module obtains a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value, and obtains the detected value of the transmitted signal according to the signal detection decision criterion according to the signal, according to The detected value is detected, and the algorithm may be a Veterbi algorithm or a ball decoding.

The fifth aspect of the present application provides a sending end device, including:

Transceiver and processor;

The transceiver and the processor are interconnected by a line, and the transceiver is configured to perform an operation of transmitting a signal on the transmitting device side in the signal detecting method described above;

The processor performs signal processing or control operations performed on the transmitting device side in the signal detecting method described above.

The sixth aspect of the present application provides a receiving end device, including:

Transceiver and processor;

The transceiver and the processor are interconnected by a line, and the transceiver is configured to perform an operation of receiving a signal at the receiving end device side in the signal detecting method described above;

The processor performs signal processing or control operations performed on the receiving device side in the signal detecting method described above.

A computer readable storage medium according to a seventh aspect of the present invention is applicable to a transmitting end device, wherein the computer readable storage medium stores an instruction, and when executed on a computer, causes the computer to execute the signal detecting method described above .

A computer readable storage medium according to an eighth aspect of the present invention is applicable to a receiving end device, wherein the computer readable storage medium stores an instruction, and when executed on a computer, causes the computer to execute the signal detecting method described above .

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, Other figures can also be obtained from those of ordinary skill in the art in view of these figures.

1 is a schematic flow chart of an embodiment of a signal detecting method provided by the present application;

2a-2b are simulation test diagrams provided by the present application;

3 is a schematic flow chart of another embodiment of a signal detecting method provided by the present application;

4 is a schematic flow chart of another embodiment of a signal detecting method provided by the present application;

FIG. 5 is a schematic structural diagram of an embodiment of a source device provided by the present application;

FIG. 6 is a schematic structural diagram of an embodiment of a receiving end device provided by the present application;

FIG. 7 is a schematic structural diagram of a physical device of an embodiment of a source device according to the present application;

FIG. 8 is a schematic structural diagram of a physical device of an embodiment of a receiving device according to the present application.

Detailed ways

The embodiment of the present application provides a signal detection method and related device, which are used to avoid the use of a pilot signal, thereby saving communication overhead.

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained based on the embodiments in the present application are within the scope of the protection of the present application.

The terms "first", "second", "third", "fourth", etc. (if present) in the specification and claims of the present application and the above figures are used to distinguish similar objects without having to use To describe a specific order or order. It is to be understood that the data so used may be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than what is illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

The present application is mainly used in a wireless communication system, and the applicable scenarios are very rich. For the scenario in which a pilot function signal such as a PS or an RS is required, the technical solution of the present application can be used. In current actual wireless communication systems, a pilot based channel estimation scheme is commonly used. Specifically, the transmitter transmits a signal p known by the receiver at certain time/frequency positions in addition to the data signal in accordance with a pre-agreed pattern of the transceiver.

The so-called PS or RS, where M ≥ N _t , N _t is the number of transmitting antennas. The pilot signal y _p received by the receiver that has experienced fading can be expressed as y _p =Hp+n, where

The LMMSE algorithm is widely used in actual products for channel estimation. In this algorithm,

The required estimate of channel fading is obtained.

Since the pilot and data signals experience the same channel fading, the receiver can estimate the resulting

Used for receiving data signals.

However, the main problem of the above solution is that the transmitter needs to allocate a part of the channel resources that can be used for transmitting data to transmit the pilot signal, thereby causing an increase in overhead, and more importantly, the pilot overhead is the number of transmitting antennas. The increase in the quadratic increase is also acceptable for single antenna systems. However, in the LTE system, the transmitter can be equipped with up to 8 antennas, and the overhead of the pilot is considerable. In the next generation of cellular communication standard NR, the Massive-MIMO pilot overhead consisting of tens of hundreds and hundreds of antennas will be unacceptable at high frequencies.

Referring to FIG. 1 , an embodiment of the present application provides a signal detection method, including:

101. The sending end device acquires an original signal.

In this embodiment, the source device obtains the original signal that is input by the user, generated by the source device, or acquired from other devices.

102. The transmitting end device obtains a transmitting signal according to the original signal.

In this embodiment, the original signal may be an analog signal or a digital signal, and if the transmission condition of the transmitting device is to be reached, the transmitting device needs to be processed as a transmitting signal.

103. The sending end device sends a transmitting signal to the receiving end device.

In this embodiment, the transmitting end device sends the transmitting signal to the receiving end device. Since the transmitting signal experiences channel fading and local noise interference during the transmission process, the transmitting signal actually received by the receiving end device is recorded as the received signal.

104. The receiving end device acquires a received signal.

In this embodiment, after the transmitting end device transmits the transmitting signal, the transmitting signal may be acquired by the receiving end device and recorded as the receiving signal after being affected by channel fading and local noise interference during the propagation.

105. The receiving end device obtains an estimated channel fading value according to the received signal.

In this embodiment, the receiving end device can obtain the channel fading value of the transmitted signal during transmission according to the received signal, and based on the obtained channel fading value, perform maximum likelihood estimation on the channel fading value to obtain channel fading estimation. value.

106. The receiving end device detects the transmitted signal according to the channel fading estimation value, and obtains the detection result.

In this embodiment, since the receiving end device has obtained the channel fading estimation value, when the receiving end device detects the transmitted signal by using the channel fading estimation value, the detected value of the transmitted signal is obtained, and is recorded as the detection result.

In the embodiment of the present application, the receiving end device receives the transmitting signal sent by the sending end device, and the transmitting signal experiences channel fading and local noise interference during the channel transmission process, and the receiving end device actually receives the signal and records it as the receiving signal, and receives the signal. The terminal device obtains the channel fading estimation value according to the received signal, and the receiving end device detects the transmitted signal according to the channel fading estimation value, and obtains the detection result, and the detection result according to the simulation is shown in FIG. 2a and FIG. 2b, when the antenna of the transmitting end device is used. The number and number of antennas of the receiving device are 32, and the channel fading between the antennas obeys the Rayleigh distribution. When Binary Phase Shift Keying (BPSK) modulation is used, the CD lines in Fig. 2a and Fig. 2b indicate It is the performance when the receiving device knows the channel state information (CSI) and has the ideal channel state information. The DD line indicates that the receiving device and the transmitting device use one antenna (N=1). Performance, when N is 2-6, multi-symbol differential detection (MSDD) Obtaining the performance of the receiving device, from the simulation results, the error rate of the performance of the embodiment is N=6, and the error rate of the ideal performance is within one dB, so the pilot can no longer be used. Signals, thus saving communication overhead.

On the basis of the foregoing embodiments, the sending end device has two different processing modes when transmitting the transmitting signal, and corresponding to the different processing manners of the transmitting end device for the transmitting signal, the receiving end obtains the channel fading estimation value and the detecting manner are also different. Description will be made separately by two embodiments.

Embodiment 1, as shown in FIG. 3, the present application provides a signal detection method, including:

301. The source device acquires an original signal.

302. The transmitting end device encodes and modulates the original signal to obtain a transmitting signal.

In this embodiment, the transmitting end device encodes and modulates the original signal to obtain a modulation sequence a=(a ₁ , a ₂ , . . . , a _N ) ^T , and the modulation sequence a is recorded as a transmission signal.

303. The transmitting device performs linear precoding on the transmit signal.

In this embodiment, the transmitting end device uses a column vector.

The transmission signal a=(a ₁ , a ₂ , . . . , a _N ) ^T is linearly precoded to obtain a linear precoded transmission signal Pa.

304. The transmitting device sends the linear precoded transmitting signal to the receiving end device through the channel.

In this embodiment, the transmitting end device sends the linear pre-coded transmission signal Pa to the receiving end device through the channel.

305. The receiving end device acquires a received signal.

In this embodiment, since the transmission signal is transmitted to the receiving device through the channel, channel fading and local noise interference may occur, and the received signal received by the receiving device is recorded as y=HPa ^T +n, where

For channel fading, N _r represents the number of antennas of the receiving device, N _t represents the number of antennas of the transmitting device, and n represents a white Gaussian noise vector with a mean of 0 and a variance of σ ² .

306. The receiving end device obtains a channel fading value according to the received signal.

In this embodiment, since the received signal is y=HPa ^T +n and the transmitted signal is a=(a ₁ , a ₂ , . . . , a _N ) ^T , then y=HPa ^T +n=va ^T can be obtained ^. +n,

It means the channel fading value.

307. The receiving end device performs maximum likelihood estimation on the channel fading value to obtain a channel fading estimation value.

In this embodiment, the maximum likelihood estimation calculation is performed on the channel fading value v, and the channel fading estimation value v ₀ , v ₀ is obtained as v ₀ = argmax _v lnp(y|v, a), where p(y| v, a) is the probability density function given y for v and a, p(y|v, a) is calculated as

Then according to the calculation formula of p(y|v, a),

Where <> is the inner product vector, for example, for vectors c and d, the inner product <c, d>=c ^T d ^* ,

Represents the real part of the plural, so I get

among them

For any v, it can be expressed as v = v ₀ + λ ε, where λ is the modulus of the error seen between v and v ₀ , ε is the direction vector of the error between v and v ₀ , and | |ε||=1, obviously,

Is a continuous function of λ, and takes the maximum value when λ=0, so

The first-order partial derivative at λ=0 is 0, so there is

Solve,

Thus, while obtaining the channel fading estimate v ₀ , v ₀ is also expressed as a function of the transmitted signal a.

308. The receiving end device obtains a signal detection and decision criterion according to the preset decision criterion and the channel fading estimation value.

In this embodiment, the detected value of the transmitted signal a is obtained according to the channel fading estimation value v ₀ .

The preset decision criterion is

Because of it

Then will

Bringing into the preset decision criterion, the signal detection decision criterion can be obtained.

309. The receiving end device obtains a detection value of the transmitted signal according to the signal detection decision criterion.

In this embodiment, the receiving end device detects the decision criterion according to the signal.

The detected value of the transmitted signal is obtained.

310. The detection value of all the transmitted signals of the receiving end device, and the detection result is obtained.

In this embodiment, since the transmitted signal uses a coded modulation to obtain a modulation sequence, the combination of the transmitted signals is very complicated, since a=(a ₁ , a ₂ , . . . , a _N ) ^T , then the specific combination The method may have an order of magnitude of N, traversing the detected values of all transmitted signals to obtain a final detection result.

In the embodiment of the present application, the transmitted signal is obtained by coding and modulating the original signal, and the linear precoding process is required before the transmitting signal is transmitted, and the receiving device can obtain the channel fading value after receiving the received signal, and the channel is obtained. The fading value is calculated by the maximum likelihood estimation, and the channel fading estimation value is obtained. The channel fading estimation formula can obtain the formula of the signal detection criterion, thereby obtaining the channel fading estimation value of all the transmitted signals, traversing all the transmitted signals, thereby obtaining the detection result. .

In the first embodiment, the receiving end device needs to traverse a=(a ₁ , a ₂ , . . . , a _N ) ^T. All possible combinations may have an order of magnitude of N, and the complexity of visible detection will be very large. The second embodiment below is to reduce the complexity of the detection in the first embodiment.

Embodiment 2 As shown in FIG. 4, the application provides a signal detection method, including:

401. The sending end device acquires an original signal.

402. The transmitting end device performs constant amplitude modulation on the original signal to obtain a transmitting signal.

In this embodiment, the transmitting end device performs constant amplitude modulation on the original signal, that is, |a _i |=A, i=1, 2, . . . , N, where A is a fixed value, without loss of generality. Assuming A=1, it is normalized. The constant amplitude modulation sequence is obtained as the transmission signal a = a ₁ a ₂ ... a _N .

403. The transmitting device performs differential coding and modulation on the transmit signal to obtain a differential coding sequence.

In this embodiment, after the constant amplitude modulation, the transmission signal a=a ₁ a ₂ ... a _N of length _N is differentially coded to obtain a differential coding sequence of length N+1 b=b ₀ b ₁ ...b _N , specifically, b ₀ is a power factor, and the transmission power of the transmitting device is changed by modulating b ₀ ,

404. The transmitting device performs linear precoding on the differential coding sequence.

In this embodiment, the transmitting end device uses a column vector.

The differential coding sequence b = b ₀ b ₁ ... b _N is linearly precoded to obtain a linear precoded transmission signal Pb.

405. The transmitting device sends the linear precoded differential coding sequence to the receiving end device by using a channel.

In this embodiment, the transmitting end device sends the linear precoded differential coding sequence Pb to the receiving end device through the channel.

406. The receiving end device acquires a received signal.

In this embodiment, since the differential coding sequence is transmitted to the receiving end device through the channel, channel fading and local noise interference occur, and the differential coding sequence received by the receiving device is recorded as y=HPb ^T +n. among them,

407. The receiving end device obtains a channel fading value of the differential coding sequence according to the received signal.

In this embodiment, since the received signal is y=HPb ^T +n, and the differential coding sequence is b=b ₀ b ₁ ... b _N , the received signal can be transformed: y=HPb ^T +n=vx ^T +n, where

And v = HPb ₀ means the channel fading value.

408. The receiving end device performs maximum likelihood estimation on the channel fading value to obtain a channel fading estimation value.

In this embodiment, the calculation is performed in the same manner as in step 306, and the obtained channel fading estimation value is obtained.

409. The receiving end device obtains a signal detection and decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value.

In this embodiment, the calculation is performed in the same manner as in step 307, and the expression of the signal detection decision criterion is obtained as follows.

Will

And the constant amplitude modulation characteristic is brought into the signal detection decision criterion, and

among them

y _i represents the ith column of the received signal y.

It is a fixed value for the received signal y and has no effect on the detection. Therefore, the signal detection decision criterion can be simplified to

410. The receiving end device obtains a detection value of the transmitted signal by using a grid-based algorithm according to a signal detection decision criterion.

A grid-based algorithm such as Veterbi algorithm or ball decoding is used to detect the detected value of the transmitted signal.

411. The receiving end device obtains the detection result according to the detected values of all the transmitted signals.

In this embodiment, the receiving end device obtains the final detection result according to the detection value of the detected transmission signal according to the Veterbi algorithm or the ball decoding algorithm.

In the embodiment of the present invention, since the device at the transmitting end adopts the method of constant amplitude modulation and differential code modulation, when the signal detection decision criterion is obtained, the signal detection decision criterion can be simplified, so that the receiving device can use the Veterbi algorithm or the ball. A grid-based algorithm such as decoding is used for signal detection. Compared with the first embodiment, there is no need to traverse all possible transmission signals, thus reducing the complexity of detection.

The signal detection method of the embodiment of the present application is described above by using an embodiment. The related device of the embodiment of the present application is introduced by using an embodiment. Referring to FIG. 5, an embodiment of the present application provides a sending end device, including:

The receiving module 501 is configured to acquire an original signal;

The processing module 502 is configured to obtain a transmit signal according to the original signal;

The sending module 503 is configured to send a transmitting signal to the receiving end device, so that the receiving end device receives the received signal, and the received signal is a transmitting signal that is sent by the sending end device and has experienced channel fading.

In the embodiment of the present application, in the current wireless communication system, the transmitting end device needs to send a pilot signal before transmitting the data signal to the receiving end device, so that the receiving end device can know the channel fading condition, thereby correctly receiving. In the present application, in the present application, there is no need to transmit a pilot signal. After the receiving module 501 acquires the original signal, the processing module 502 obtains a transmission signal, and the sending module 503 sends a transmission signal to the receiving device, so that the receiving device receives the reception. The signal received by the transmitting device is a transmitting signal that has experienced channel fading. The receiving device receives the channel fading signal to obtain a channel fading estimation value, so that the transmitting signal can be detected according to the channel fading estimation value. The use of pilot signals is no longer available, thereby saving communication overhead.

Optionally, in some possible embodiments,

The processing module 502 is specifically configured to perform coding and modulation on the original signal to obtain a transmission signal, where the transmission signal is a modulation sequence;

or,

The processing module 502 is specifically configured to perform constant amplitude modulation on the original signal to obtain a transmission signal, where the transmission signal is a constant amplitude modulation sequence.

In the embodiment of the present application, the processing mode of the processing module 502 may be a modulation modulation to obtain a modulation sequence, or a constant amplitude modulation to obtain a constant amplitude modulation sequence, and two different processing manners, which may enable subsequent transmitting devices and The receiving device processing method is different.

Optionally, in some possible embodiments,

The processing module 502 is further configured to perform linear precoding on the transmit signal.

The sending module 503 is further configured to send the linear pre-coded transmit signal to the receiving end device by using a channel.

In the embodiment of the present application, the transmit signal is obtained by the processing module 502 to encode and modulate the original signal, and the transmit signal is a modulation sequence. Before the transmit module 503 sends the transmit signal, the processing module 502 also performs linear precoding on the transmit signal. .

Optionally, in some possible embodiments,

The processing module 502 is further configured to perform differential coding modulation on the transmit signal to obtain a differential coding sequence.

The processing module 502 is further configured to perform linear precoding on the differential coding sequence;

The sending module 503 is further configured to send the linear precoded differential coding sequence to the receiving end device through a channel.

In the embodiment of the present application, the transmitting signal is obtained by the processing module 502 performing constant amplitude modulation on the original signal, and the transmitting signal is a constant amplitude modulation sequence. Before the transmitting module 503 sends the transmitting signal, the processing module 502 first differentiates the transmitting signal. The coded modulation obtains a differential code sequence, and then linearly pre-codes the differential code sequence.

As shown in FIG. 6, the embodiment of the present application provides a receiving end device, including:

The receiving module 601 is configured to acquire a received signal, where the received signal is a channel fading transmitting signal sent by the sending end device;

The processing module 602 is configured to obtain a channel fading estimation value according to the received signal;

The processing module 602 is further configured to detect the transmit signal according to the channel fading estimation value, to obtain a detection result.

In the embodiment of the present application, the receiving module 601 receives the channel fading transmitting signal sent by the sending end device, and the processing module 602 can obtain the channel fading estimation value in the transmitting and receiving process according to the received signal, and the processing module 602 determines the channel fading estimation value according to the channel fading estimation value. The transmitted signal is detected and the detection result is obtained. The scheme can obtain the channel fading estimation value by receiving the signal, and then detect the transmission signal according to the channel fading estimation value, thereby obtaining channel state information such as channel fading condition. Therefore, the pilot signal can be no longer used, thereby saving communication overhead.

Optionally, in some possible embodiments,

The processing module 602 is specifically configured to obtain a channel fading value according to the received signal;

The processing module 602 is further configured to perform a maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.

In the embodiment of the present application, the processing module 602 can calculate the channel fading value according to the received signal and the transmitted signal. For specific calculation, referring to step 306 in the embodiment shown in FIG. 3, the processing module 602 performs maximum likelihood estimation on the channel fading value. The channel fading estimate is obtained. For the specific calculation, refer to step 307 in the embodiment shown in FIG.

Optionally, in some possible embodiments,

The processing module 602 is further configured to obtain a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value;

The processing module 602 is further configured to obtain, according to the signal detection decision criterion, a detection value of all the transmitted signals;

The processing module 602 is further configured to obtain a detection result according to the detected value.

In the embodiment of the present application, the processing module 602 obtains a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value. The specific process of obtaining the signal detection decision criterion is referred to step 308 in the embodiment shown in FIG. 3, and is obtained according to the signal detection decision criterion. The detected values of all transmitted signals are obtained based on the detected values.

Optionally, in some possible embodiments,

The processing module 602 is further configured to obtain a channel fading value of the differential coding sequence according to the received signal;

In the embodiment of the present application, since the generating manner and processing manner of the transmitting signal are known to the receiving end, the processing module 602 can obtain a differential encoding sequence corresponding to the transmitted signal, and the processing module 602 can calculate the channel of the differential encoding sequence according to the received signal. Fading value, specific calculations Referring to step 407 in the embodiment shown in FIG. 4, the processing module 602 performs a maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value. The specific calculation refers to step 408 in the embodiment shown in FIG.

Optionally, in some possible embodiments,

The processing module 602 is further configured to obtain a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value;

The processing module 602 is further configured to: according to the signal detection decision criterion, obtain a detection value of the transmitted signal by using a grid-based algorithm;

In the embodiment of the present application, the processing module 602 obtains a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value. The specific process of obtaining the signal detection decision criterion is referred to step 409 in the embodiment shown in FIG. The signal detection decision criterion obtains the detection value of the transmitted signal through the grid-based algorithm, and obtains the detection result according to the detected value.

FIG. 7 is a schematic structural diagram of a transmitting device 70 according to an embodiment of the present application. The transmitting device 70 includes a processor 710 and a transceiver 720, and the transceiver 720 and the processor 710 are interconnected by a bus system 730.

Optionally, as shown in FIG. 7 , in some implementations of the present application, the access network device 70 further includes: a memory 740 ; the memory 740 may include a read only memory and a random access memory, and provide the processor 710 Operating instructions and data. A portion of the memory 740 may also include non-volatile random access memory (NVRAM). Memory 740 stores the following elements, executable modules or data structures, or a subset of them, or their extension set:

In the embodiment of the present application, the corresponding operation is performed by calling an operation instruction stored in the memory 740, which can be stored in the operating system. The processor 710 controls the operation of the transmitting device 70, and the processor 710 may also be referred to as a central processing unit (CPU). Memory 740 can include read only memory and random access memory and provides instructions and data to processor 710. A portion of memory 740 may also include non-volatile random access memory (NVRAM). In a specific application, the various components of the transmitting device 70 are coupled together by a bus system 730. The bus system 730 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 730 in the figure.

The method disclosed in the foregoing embodiment of the present application may be applied to the processor 710 or implemented by the processor 710. Processor 710 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in a form of software. The processor 710 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or discrete hardware. Component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory 740, and processor 710 reads the information in memory 740 and, in conjunction with its hardware, performs the steps of the above method.

Optionally, the transceiver 720 is configured to perform the transmitting and receiving steps of the transmitting device in the embodiment shown in FIG. 1, FIG. 3 and FIG.

The processor 710 is configured to perform the step of processing the signal by the transmitting device in the embodiment shown in FIG. 1, FIG. 3 and FIG.

FIG. 8 is a schematic structural diagram of a receiving end device 80 according to an embodiment of the present application. The sink device 80 includes a processor 810 and a transceiver 820, and the transceiver 820 and the processor 810 are interconnected by a bus system 830.

Optionally, the transceiver 820 is configured to perform the receiving step of the receiving device in the embodiment shown in FIG. 1, FIG. 3 and FIG.

The processor 810 is configured to perform the step of detecting the signal by the receiving device in the embodiment shown in FIG. 1, FIG. 3 and FIG.

In the above embodiments, the instructions stored by the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be written in the memory in advance, or may be downloaded in software and installed in the memory.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

The method, device, device, and computer readable storage medium and system for accessing the network provided by the embodiments of the present application are described in detail. The principles and implementation manners of the present application are described in the specific examples. The description of the examples is only for helping to understand the method of the present application and its core ideas; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in specific embodiments and application scopes. The description is not to be construed as limiting the present application.

Claims

A signal detection method, comprising:

The transmitting device acquires the original signal;

The transmitting device obtains a transmission signal according to the original signal;

Transmitting, by the sending end device, the transmitting signal to the receiving end device, so that the receiving end device receives a receiving signal, where the received signal is the transmitting signal that is sent by the sending end device and has experienced channel fading The transmit signal includes a data signal and does not include a pilot signal.
The method according to claim 1, wherein the transmitting end device obtains a transmission signal according to the original signal, including:

The transmitting end device encodes and modulates the original signal to obtain a transmitting signal, where the transmitting signal is a modulation sequence.
The method according to claim 2, wherein the transmitting end device sends the transmitting signal to the receiving end device, including:

The transmitting device performs linear precoding on the transmit signal;

The transmitting end device sends the linear pre-coded transmission signal to the receiving end device through a channel.
The method according to claim 1, wherein the transmitting end device obtains a transmission signal according to the original signal, including:

The transmitting end device performs constant amplitude modulation on the original signal to obtain a transmitting signal, and the transmitting signal is a constant amplitude modulation sequence.
The method according to claim 4, wherein the transmitting end device sends the transmitting signal to the receiving end device, including:

Transmitting, by the transmitting device, differential coding and modulation on the transmit signal to obtain a differential coding sequence;

The transmitting device performs linear precoding on the differential coding sequence;

The transmitting end device sends the linear pre-coded differential coding sequence to the receiving end device through a channel.
A signal detection method, comprising:

Receiving, by the receiving device, a received signal, where the received signal is a channel fading transmitting signal sent by the sending end device, where the transmitting signal includes a data signal, and does not include a pilot signal;

The receiving end device obtains a channel fading estimation value according to the received signal;

The receiving end device detects the transmitted signal according to the channel fading estimation value, and obtains a detection result.
The method according to claim 6, wherein the receiving end device obtains a channel fading estimation value according to the received signal, including:

The receiving end device obtains a channel fading value of the transmitting signal according to the received signal;

The receiving end device performs maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.
The method according to claim 7, wherein the receiving end device detects the transmitted signal according to the channel fading estimation value, and obtains a detection result, including:

The receiving end device obtains a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value;

The receiving end device obtains all the detected values of the transmitted signal according to the signal detection decision criterion;

The receiving end device obtains a detection result according to the detected value.
The method according to claim 6, wherein the receiving end device obtains a channel fading estimation value according to the received signal, including:

The receiving end device obtains a channel fading value of the differential coding sequence according to the received signal;

The receiving end device performs maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.
The method according to claim 9, wherein the receiving end device detects the transmitted signal according to the channel fading estimation value, and obtains a detection result, including:

The receiving end device obtains a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value;

The receiving end device detects a decision criterion according to the signal, and obtains a detection value of the transmitted signal by using an algorithm;

The receiving end device obtains a detection result according to the detected value.
A sender device, comprising:

a receiving module, configured to acquire an original signal;

a processing module, configured to obtain a transmit signal according to the original signal;

a sending module, configured to send the transmitting signal to the receiving end device, so that the receiving end device receives a receiving signal, where the received signal is the transmitting signal that is sent by the sending end device and has experienced channel fading The transmit signal includes a data signal and does not include a pilot signal.
The transmitting device according to claim 11, wherein

The processing module is specifically configured to perform coding and modulation on the original signal to obtain a transmission signal, where the transmission signal is a modulation sequence.
The transmitting device according to claim 12, characterized in that

The processing module is further configured to perform linear precoding on the transmit signal;

The sending module is further configured to send the linear pre-coded transmit signal to the receiving end device by using a channel.
The transmitting device according to claim 11, wherein

The processing module is specifically configured to perform constant amplitude modulation on the original signal to obtain a transmission signal, where the transmission signal is a constant amplitude modulation sequence.
The transmitting device according to claim 14, wherein the transmitting device sends the transmitting signal to the receiving device, including:

The processing module is further configured to perform differential coding modulation on the transmit signal to obtain a differential coding sequence.

The processing module is further configured to perform linear precoding on the differential coding sequence;

The sending module is further configured to send the linear precoded differential code sequence to a receiving end device by using a channel.
A receiving end device, comprising:

a receiving module, configured to acquire a received signal, where the received signal is a channel fading transmitting signal sent by the sending end device, where the transmitting signal includes a data signal, and does not include a pilot signal;

a processing module, configured to obtain a channel fading estimation value according to the received signal;

The processing module is further configured to detect the transmit signal according to the channel fading estimation value, to obtain a detection result.
The receiving device according to claim 16, wherein

The processing module is further configured to obtain a channel fading value of the transmit signal according to the received signal;

The processing module is further configured to perform a maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.
The receiving device according to claim 17, wherein

The processing module is further configured to obtain a signal detection decision criterion according to the preset decision criterion and the channel fading estimation value;

The processing module is further configured to obtain, according to the signal detection decision criterion, all detected values of the transmit signal;

The processing module is further configured to obtain a detection result according to the detection value.
The receiving device according to claim 16, wherein

The processing module is further configured to obtain a channel fading value of the differential coding sequence according to the received signal;

The processing module is further configured to perform a maximum likelihood estimation calculation on the channel fading value to obtain a channel fading estimation value.
The receiving device according to claim 19, characterized in that

The processing module is further configured to obtain a signal detection decision criterion according to the constant amplitude modulation characteristic, the preset decision criterion, and the channel fading estimation value;

The processing module is further configured to: according to the signal detection decision criterion, obtain a detection value of the transmit signal by using an algorithm;

The processing module is further configured to obtain a detection result according to the detection value.
A sender device, comprising:

Transceiver and processor;

The transceiver and the processor are interconnected by a line, and the transceiver is configured to perform an operation of signaling on the transmitting device side in the method according to any one of claims 1-5;

The processor performs signal processing or control operations performed on the transmitting device side in the method of any of claims 1-5.
A receiving end device, comprising:

Transceiver and processor;

The transceiver and the processor are interconnected by a line, and the transceiver is configured to perform an operation of receiving a signal on the receiving device side in the method according to any one of claims 6-10;

The processor performs the signal processing or control operations performed on the receiving device side in the method of any of claims 6-10.
A computer readable storage medium, characterized by being applied to a transmitting device, wherein the computer readable storage medium stores instructions, when executed on a computer, causing the computer to perform any of the above claims 1-5 Said method.
A computer readable storage medium, characterized in that it is applied to a receiving end device, wherein the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform any of the above claims 6-10 Said method.