CN115884239A - Wireless network communication method and device - Google Patents

Abstract

The invention discloses a wireless network communication method and a wireless network communication device. Wherein, the method comprises the following steps: receiving a perception measurement signal sent by second equipment, wherein the perception measurement signal is used for measuring a channel state between the first equipment and the second equipment; processing the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used for describing an error generated in transmission of the perception measurement signal; generating a measurement report, wherein the measurement report is used for describing a measurement error parameter; and sending a measurement report. The invention solves the technical problem that the measurement of the channel state between the devices is inaccurate due to the influence of errors.

Description

Wireless network communication method and device

Technical Field

The present invention relates to the field of wireless communication technology, and in particular to a wireless network communication method and device.

Background Art

Channel state information (CSI) measurements in WiFi network measurements are widely used for different sensing purposes. CSI measurements can reflect the characteristics of wireless multipath propagation. During the measurement process, the signal receiver measures the known training sequence, captures the time-space frequency propagation characteristics, and analyzes the state changes of its multiple subcarriers to infer changes in the surrounding environment. In addition, the user's actions can be judged in non-line-of-sight without the use of sensors.

However, for each subcarrier in the measurement signal sent by the WiFi signal transmitter, the WiFi channel can be modeled as y=Hx+n, where y is the received signal, x is the transmitted signal, H is the CSI matrix, and n is the noise vector. Obviously, due to the interference of the noise vector, the measured channel state information cannot truly reflect the perception of the signal propagation environment, but will be interfered by noise, resulting in low measurement accuracy of the environment when the channel state information is used to reflect environmental changes.

To address the above-mentioned problems, no effective solution has been proposed yet.

Summary of the invention

The embodiments of the present invention provide a wireless network communication method and apparatus to at least solve the technical problem that channel state measurement between devices is affected by errors and leads to inaccurate measurement.

According to one aspect of an embodiment of the present invention, a wireless network communication method is provided, which is applied to a first device, and includes: receiving a perception measurement signal sent by a second device, wherein the perception measurement signal is used to measure a channel state between the first device and the second device; processing the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated by the perception measurement signal during transmission; generating a measurement report, wherein the measurement report includes a description of the measurement error parameter; and sending the measurement report.

Optionally, generating the measurement report includes: the physical layer of the first device generates a parameter vector based on the measurement error parameter, wherein the parameter vector includes the measurement error parameter; the physical layer transmits the parameter vector to the MAC layer of the first device through a message interface; the MAC layer generates the measurement report, wherein the measurement report includes the parameter vector.

Optionally, the MAC layer generates the measurement report, further including: the physical layer transmits the signal parameters of the perception measurement signal to the MAC layer through the message interface, wherein the signal parameters include at least one of the following: the original measurement matrix of the subcarriers within the bandwidth of the perception measurement signal, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix; the MAC layer generates the measurement report, wherein the measurement report includes the signal parameters.

Optionally, the measurement error parameter includes at least one of the following: sampling time offset, sampling frequency offset.

Optionally, the above method also includes: receiving a perception measurement signal sent by a second device, including: receiving a long training symbol frame sent by the second device, wherein the long training symbol frame is used for channel state information CSI measurement.

According to another aspect of an embodiment of the present invention, a wireless network communication method is also provided, including: a second device sends a perception measurement signal to a first device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; the first device processes the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal; the first device generates a measurement report, wherein the measurement report is used to describe the measurement error parameter; the first device sends the measurement report to a third device, wherein the third device is used to eliminate an error generated during transmission of the perception measurement signal received by the first device; the second device sends a transmitter error parameter to the third device, wherein the transmitter error parameter is used to describe an error recorded when the first device transmits the perception measurement signal; the third device processes the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

Optionally, the measurement error parameters include at least one of the following: sampling time offset, sampling frequency offset; the transmitting end error parameters include: time delay of cyclic shift diversity of the transmitting antenna; the measurement report includes at least one of the following: the original measurement matrix of subcarriers within the perception measurement signal bandwidth, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix.

Optionally, the above method also includes: the second device and the third device are the same device.

According to another aspect of an embodiment of the present invention, there is also provided a wireless network communication apparatus applied to a first device, including: a receiving module, used to receive a perception measurement signal sent by a second device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; a first processing module, used to process the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated by the perception measurement signal during transmission; a first generating module, used to generate a measurement report, wherein the measurement report is used to describe the measurement error parameter; and a first sending module, used to send the measurement report.

According to another aspect of an embodiment of the present invention, a wireless network communication device is further provided, including: a second sending module, configured for a second device to send a perception measurement signal to a first device, wherein the perception measurement signal is used to measure a channel state between the first device and the second device; a second processing module, configured for the first device to process the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal; a second generating module, configured for the first device to generate a measurement report, wherein the measurement report is used to describe the measurement error parameter; a third sending module, configured for the first device to send the measurement report to a third device, wherein the third device is used to eliminate an error generated during transmission of the perception measurement signal received by the first device; a fourth sending module, configured for the second device to send a transmitter error parameter to the third device, wherein the transmitter error parameter is used to describe an error recorded when the first device transmits the perception measurement signal; and a third processing module, configured for the third device to process the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the wireless network communication methods described above.

According to another aspect of the embodiments of the present invention, a processor is provided, wherein the processor is used to run a program, wherein the program executes any one of the wireless network communication methods described above when running.

In an embodiment of the present invention, a method of sending a perception measurement signal is adopted, in which a first device receives a perception measurement signal sent by a second device for measuring a channel state between the first device and the second device, processes the perception measurement signal, obtains a measurement error parameter of the perception measurement signal, and generates and sends a measurement report according to the measurement error parameter, thereby achieving the purpose of obtaining the error generated in the transmission process of the perception measurement signal for measuring the channel state between the first device and the second device, thereby achieving the technical effect of improving the accuracy of the measurement result of the channel state measurement, and further solving the technical problem of inaccurate measurement caused by the error in the channel state measurement between devices.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

FIG1 shows a hardware structure block diagram of a computer terminal for implementing a wireless network communication method;

FIG2 is a schematic diagram of a flow chart of a wireless network communication method 1 according to an embodiment of the present invention;

3 is a schematic diagram of a flow chart of a second wireless network communication method according to an embodiment of the present invention;

FIG4 is a structural block diagram of a wireless network communication device 1 provided according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a second wireless network communication device according to an embodiment of the present invention.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

First, some nouns or terms that appear in the description of the embodiments of the present application are subject to the following explanations:

Channel state information (CSI), in the field of wireless communications, is the channel property of the communication link, which describes information such as the attenuation factor of the signal on each transmission path.

Example 1

According to an embodiment of the present invention, an embodiment of a wireless network communication method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

The method embodiment provided in the first embodiment of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. FIG1 shows a hardware structure block diagram of a computer terminal for implementing a wireless network communication method. As shown in FIG1 , the computer terminal 10 may include one or more (102a, 102b, ..., 102n are used in the figure to show) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission module 106 for communication functions. In addition, it may also include: a display, an input/output interface (I/O interface), a universal serial bus (USB) port (which may be included as one of the ports of the BUS bus), a network interface, a power supply and/or a camera. It can be understood by those skilled in the art that the structure shown in FIG1 is only for illustration and does not limit the structure of the above-mentioned electronic device. For example, the computer terminal 10 may also include more or fewer components than those shown in FIG1 , or have a configuration different from that shown in FIG1 .

It should be noted that the one or more processors 102 and/or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the computer terminal 10. As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

The memory 104 can be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the wireless network communication method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, the wireless network communication method of the above-mentioned application is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The transmission module 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission module 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission module 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computer terminal 10 .

FIG. 2 is a flow chart of a wireless network communication method 1 according to an embodiment of the present invention. As shown in FIG. 2 , the method includes the following steps:

Step S202, receiving a perception measurement signal sent by the second device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device. It should be noted that the second device may be a perception measurement signal transmitter in the process of channel state measurement, and the first device may be a perception measurement signal receiver in the above process. After the first device receives the perception measurement signal, continue to complete the other steps in this embodiment.

Step S204, processing the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe the error generated during the transmission of the perception measurement signal. Optionally, the measurement error parameter may include parameter information of the noise vector n. In the perception measurement signal sent by the second device, for each subcarrier, the channel of the signal can be modeled as y=Hx+n, wherein y is the signal received by the first device, x is the transmitted signal, H is the CSI matrix, and n is the noise vector. Among them, the noise vector can be a factor that affects the measurement accuracy of the channel state caused by the interference of the hardware or software received by the perception measurement signal, and the specific size of the factor can be obtained by the first device processing the received perception measurement signal.

Step S206, generating a measurement report, wherein the measurement report is used to describe the measurement error parameter. Optionally, the measurement report may include a control domain part and a measurement result part, the control domain part may include measurement parameter information, and the measurement result part may include measurement result information of the channel state, for example, may include the measurement error parameter.

Step S208: Send the measurement report. The measurement report may be sent to a device capable of processing the measurement report, which processes the measurement report and other data to eliminate the interference effect of the measurement error, ie, the noise vector, and obtain channel state information with higher accuracy.

Through the above steps, the purpose of obtaining the error generated in the transmission process of the perception measurement signal used to measure the channel state between the first device and the second device is achieved, thereby achieving the technical effect of improving the accuracy of the measurement results of the channel state measurement, and further solving the technical problem of inaccurate measurement caused by errors in the channel state measurement between devices.

As an optional embodiment, the perception measurement signal sent by the second device may include a long training symbol frame, wherein the long training symbol frame is used for channel state information CSI measurement. Optionally, the long training symbol frame may be an NDP frame, and the long training symbol frame includes a long training symbol LTF, which may also be referred to as a long training field LTF. When performing channel state information CSI measurement, the channel state information CSI describes how the measured perception signal propagates from the second device to the first device on a specific carrier at a specific moment, and the amplitude and phase of the CSI are attenuated and phase-shifted due to the multipath effect. Optionally, each CSI measurement unit represents its corresponding channel frequency response (CFR), and the CFR can be expressed as the following formula:

Where a _n (t) is the amplitude attenuation coefficient, τ _n (t) is the propagation delay, and f is the carrier frequency. The amplitude |H| and phase ∠H of CSI are affected by the relative movement of the first device and the second device, as well as the movement of objects and people in the propagation environment. Therefore, the wireless characteristics in the signal propagation environment can be captured through the measurement and analysis of CSI. Furthermore, based on these characteristics, mathematical modeling or machine learning algorithms can be used in different sensing application scenarios.

As an optional embodiment, the measurement report is generated by the physical layer of the first device generating a parameter vector according to the measurement error parameter, wherein the parameter vector includes the measurement error parameter; the physical layer transmits the parameter vector to the MAC layer of the first device through a message interface; and the MAC layer generates the measurement report according to the parameter vector. Optionally, the measurement error parameter includes at least one of the following: sampling time offset and sampling frequency offset.

In this optional embodiment, the first device may include a physical layer and a MAC layer. The physical layer may obtain the error generated by the signal during the propagation process while receiving the perception measurement signal, generate a measurement error parameter based on the error, and pass it to the MAC layer in the form of a parameter vector. The MAC layer is responsible for generating a measurement report and sending the report in a subsequent step.

In addition, taking the SCI measurement of the WiFi system as an example, for each subcarrier, the WiFi channel can be modeled as y=Hx+n, and the baseband CSI signal obtained by the first device through the measurement of the measurement perception signal can be expressed as the following mathematical model:

where d _i,j,n represents the i-th transmit antenna, j represents the j-th receive antenna, n represents the data path between antennas, f _k is the carrier frequency, τ _i is the time delay of the cyclic shift diversity (CSD) of the i-th transmit antenna adopted by the transmitter, ρ is the sampling time offset (STO), f _k ′ is the sampling frequency offset (SFO), and q _i,j and σ _i,j are the amplitude attenuation and phase shift of the beamforming matrix.

In the above noise factors, CSD is known information when the second device transmits the measurement perception signal, so it can be eliminated by the error source and error size actively reported by the second device. In addition, the first device also reports the sampling time offset and sampling frequency offset obtained after processing the measurement perception signal through the measurement report, and quantitatively reports the signal interference called error or noise factor.

As an optional embodiment, the MAC layer generates a measurement report in the following manner: the physical layer transmits the signal parameters of the perception measurement signal to the MAC layer through a message interface, wherein the signal parameters include at least one of the following: the original measurement matrix of the subcarriers within the bandwidth of the perception measurement signal, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix; based on the signal parameters, the MAC layer generates a measurement report. The measurement report may include a measurement error parameter and may also include other signal parameters of the measured perception signal, so that the device receiving the measurement report can eliminate the error in the channel state information according to the measurement report to obtain more accurate channel state information.

Among them, the center carrier frequency can be the center carrier frequency of the perception measurement signal; the original measurement matrix of the subcarrier can include the original measurement matrix of all subcarriers within the perception measurement signal bandwidth; the amplitude of the beamforming matrix can include the amplitude attenuation of the beamforming matrix, which has I×J values, I represents the number of transmitting antennas, and J represents the number of receiving antennas; the phase shift of the beamforming matrix can include I×J values, I represents the number of transmitting antennas, and J represents the number of receiving antennas.

As an optional embodiment, the measurement report may be sent to a third device or to a second device. The third device may be a perception measurement report processor, and the processor may be a perception measurement report receiver of each STA. Alternatively, the measurement report may be directly sent to the second device, and the second device may perform data processing to obtain a CSI measurement result after eliminating errors.

FIG. 3 is a flow chart of a second wireless network communication method according to an embodiment of the present invention. As shown in FIG. 3 , the method includes the following steps:

Step S302: The second device sends a perception measurement signal to the first device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device. It should be noted that the second device may be a perception measurement signal transmitter in the process of channel state measurement, and the first device may be a perception measurement signal receiver in the above process. After the first device receives the perception measurement signal, continue to complete the other steps in this embodiment.

Step S304: The first device processes the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe the error generated during the transmission of the perception measurement signal. Optionally, the measurement error parameter may include parameter information of the noise vector n. In the perception measurement signal sent by the second device, for each subcarrier, the channel of the signal can be modeled as y=Hx+n, wherein y is the signal received by the first device, x is the transmitted signal, H is the CSI matrix, and n is the noise vector. The noise vector may be a factor that affects the measurement accuracy of the channel state caused by hardware or software interference to the perception measurement signal, and the specific size of the factor may be obtained by processing the received perception measurement signal by the first device.

Step S306: The first device generates a measurement report, wherein the measurement report is used to describe the measurement error parameter. Optionally, the measurement report may include a control domain part and a measurement result part, the control domain part may include measurement parameter information, and the measurement result part may include measurement result information of the channel state, for example, may include the measurement error parameter.

Step S308: The first device sends a measurement report to a third device, wherein the third device is used to eliminate the error generated in the transmission of the perception measurement signal received by the first device. The measurement report can be sent to a third device capable of processing the measurement report, and the device eliminates the interference effect of the measurement error, i.e., the noise vector, by processing the measurement report and other data, to obtain higher-precision channel state information.

Step S310, the second device sends a transmitter error parameter to the third device, wherein the transmitter error parameter is used to describe the error recorded when the first device transmits the perception measurement signal. In this step, some errors of the perception measurement signal are generated by the second device, that is, the original transmitter. This type of transmitter error parameter can be directly sent by the second device to the third device, so that the third device can eliminate this type of error when performing error elimination.

Step S312: The third device processes the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

Optionally, the channel frequency response information may be expressed as the following formula:

Where a _n (t) is the amplitude attenuation coefficient, τ _n (t) is the propagation delay, and f is the carrier frequency. The amplitude |H| and phase ∠H of CSI are affected by the relative movement of the first device and the second device, as well as the movement of objects and people in the propagation environment. Therefore, the wireless characteristics in the signal propagation environment can be captured through the measurement and analysis of CSI. Furthermore, based on these characteristics, mathematical modeling or machine learning algorithms can be used in different sensing application scenarios.

The baseband CSI signal obtained by the first device through measuring the measured perception signal can be expressed as the following mathematical model:

where d _i,j,n represents the i-th transmit antenna, j represents the j-th receive antenna, n represents the data path between antennas, f _k is the carrier frequency, τ _i is the time delay of the cyclic shift diversity (CSD) of the i-th transmit antenna adopted by the transmitter, ρ is the sampling time offset (STO), f _k ′ is the sampling frequency offset (SFO), and q _i,j and σ _i,j are the amplitude attenuation and phase shift of the beamforming matrix.

By eliminating the error term in the baseband CSI signal, the above CSI signal can be processed into channel frequency response information.

Through the above steps, the purpose of obtaining the error generated in the transmission process of the perception measurement signal used to measure the channel state between the first device and the second device is achieved, thereby achieving the technical effect of improving the accuracy of the measurement results of the channel state measurement, and further solving the technical problem of inaccurate measurement caused by errors in the channel state measurement between devices.

As an optional embodiment, the second device sends a perception measurement signal to the first device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; the first device processes the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal; the first device generates a measurement report, wherein the measurement report is used to describe the measurement error parameter; the first device sends the measurement report to a third device, wherein the third device is used to eliminate an error generated during transmission of the perception measurement signal received by the first device; the second device sends a transmitter error parameter to the third device, wherein the transmitter error parameter is used to describe an error recorded when the first device transmits the perception measurement signal; the third device processes the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

As an optional embodiment, the measurement error parameters may include at least one of the following: sampling time offset, sampling frequency offset; the transmitting end error parameters include: time delay of cyclic shift diversity of the transmitting antenna; the measurement report may include at least one of the following: the original measurement matrix of the subcarriers within the perceived measurement signal bandwidth, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix.

As an optional embodiment, the second device and the third device are the same device.

The above-mentioned embodiment and optional embodiments may be applied to a variety of practical application scenarios. For example, as an optional implementation, CSI error elimination may be implemented in a WiFi sensing application according to the following process steps.

S1. After the first device and the second device complete the information exchange of the perception measurement capability through negotiation and start CSI measurement, the first device sets the local high-layer parameter dot11CSIMsmtActivated to activated or TRUE.

S2, when the local parameter dot11CSIMsmtActivated of the first device is set to activated or TURE, the first device waits for the second device to transmit a perception measurement signal long training symbol frame, namely, an NDP frame, at the negotiated time and channel.

S3, after the physical layer of the first device receives the complete long training symbol frame, it passes the parameter vector RXVECTOR to the MAC layer through the message interface between the physical layer and the MAC layer. The parameter vector RXVECTOR includes the CSI measurement estimation result of the physical layer, including the error generated by the long training symbol frame estimated by the physical layer during the transmission process. Specifically, the RXVECTOR message includes the following parameters:

S4, after the MAC layer of the first device receives the parameter vector RXVECTOR, it waits for the Trigger frame sent by the message processing device. After receiving the Trigger frame, the measurement report is returned to the message processing device over the air interface after the SIFS timer expires. The message processing device can be the second device or the third device.

Specifically, the measurement report may include the following parameters:

The carrier group refers to selecting one carrier for every Ng carriers, whose index number is Scidx. The carrier represents the frequency domain response of the group, and the purpose is to reduce the air interface size of the feedback report.

S5, the second or third device receives the complete measurement report at a fixed time, extracts the original measurement matrix of each carrier respectively, removes the error factor in the original measurement perception signal through digital signal processing, and obtains the channel frequency response information after the error is eliminated.

Through the above steps, the second or third device uses these reported error factors to perform digital signal noise reduction processing, thereby improving the accuracy of CSI's environmental perception and optimizing the perception level.

Example 2

According to an embodiment of the present invention, a wireless network communication device 1 for implementing the above-mentioned wireless network communication method 1 is also provided. Figure 4 is a structural block diagram of the wireless network communication device 1 provided according to an embodiment of the present invention. As shown in Figure 4, the wireless network communication device 1 40 includes: a receiving module 42, a first processing module 44, a first generating module 46 and a first sending module 48. The wireless network communication device 1 40 is described below.

A receiving module 42, configured to receive a sensing measurement signal sent by the second device, wherein the sensing measurement signal is used to measure a channel state between the first device and the second device;

A first processing module 44 is used to process the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal;

A first generating module 46, configured to generate a measurement report, wherein the measurement report is used to describe the measurement error parameters;

The first sending module 48 is configured to send a measurement report.

It should be noted that the above-mentioned receiving module 42, first processing module 44, first generating module 46 and first sending module 48 correspond to steps S202 to S208 in Example 1, and the examples and application scenarios implemented by the multiple modules and the corresponding steps are the same, but are not limited to the contents disclosed in the above-mentioned Example 1. It should be noted that the above-mentioned modules as part of the device can be run in the computer terminal 10 provided in Example 1.

Example 3

According to an embodiment of the present invention, a wireless network communication device 2 for implementing the above-mentioned wireless network communication method 2 is also provided. Figure 5 is a structural block diagram of the wireless network communication device 2 provided according to an embodiment of the present invention. As shown in Figure 5, the wireless network communication device 2 50 includes: a second sending module 52, a second processing module 54, a second generating module 56, a third sending module 58, a fourth sending module 60 and a third processing module 62. The wireless network communication device 2 50 is described below.

A second sending module 52, configured for the second device to send a sensing measurement signal to the first device, wherein the sensing measurement signal is used to measure a channel state between the first device and the second device;

A second processing module 54 is configured to process the perception measurement signal by the first device to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal;

A second generating module 56, configured for the first device to generate a measurement report, wherein the measurement report is used to describe a measurement error parameter;

A third sending module 58, configured for the first device to send a measurement report to a third device, wherein the third device is configured to eliminate errors generated during transmission of the perception measurement signal received by the first device;

A fourth sending module 60, configured for the second device to send a transmitter error parameter to a third device, wherein the transmitter error parameter is used to describe an error recorded when the first device transmits a sensing measurement signal;

The third processing module 62 is used for the third device to process the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

It should be noted that the second sending module 52, the second processing module 54, the second generating module 56, the third sending module 58, the fourth sending module 60 and the third processing module 62 correspond to steps S302 to S312 in Example 1, and the examples and application scenarios implemented by the multiple modules and the corresponding steps are the same, but are not limited to the contents disclosed in the above-mentioned Example 1. It should be noted that the above-mentioned modules as part of the device can be run in the computer terminal 10 provided in Example 1.

Example 4

An embodiment of the present invention may provide a computer device. Optionally, in this embodiment, the computer device may be located in at least one network device among multiple network devices of a computer network. The computer device includes a memory and a processor.

Among them, the memory can be used to store software programs and modules, such as the program instructions/modules corresponding to the wireless network communication method and device in the embodiment of the present invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, realizing the above-mentioned wireless network communication method. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include a memory remotely arranged relative to the processor, and these remote memories can be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The processor can call the information and application stored in the memory through the transmission device to perform the following steps: receive a perception measurement signal sent by the second device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; process the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe the error generated by the perception measurement signal during transmission; generate a measurement report, wherein the measurement report is used to describe the measurement error parameter; and send the measurement report.

Optionally, the processor may also execute program code of the following steps: generating a measurement report, including: the physical layer of the first device generates a parameter vector based on the measurement error parameter, wherein the parameter vector includes the measurement error parameter; the physical layer transmits the parameter vector to the MAC layer of the first device through a message interface; the MAC layer generates the measurement report, wherein the measurement report includes the parameter vector.

Optionally, the processor may also execute the program code of the following steps: the MAC layer generates a measurement report, and further includes: the physical layer transmits the signal parameters of the perception measurement signal to the MAC layer through a message interface, wherein the signal parameters include at least one of the following: the original measurement matrix of the subcarriers within the perception measurement signal bandwidth, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix; the MAC layer generates the measurement report, wherein the measurement report includes the signal parameters.

Optionally, the processor may also execute a program code of the following steps: the measurement error parameter includes at least one of the following: a sampling time offset, a sampling frequency offset.

Optionally, the processor may also execute program code of the following steps: receiving a perception measurement signal sent by a second device, including: receiving a long training symbol frame sent by the second device, wherein the long training symbol frame is used for channel state information CSI measurement.

Optionally, the processor may also execute program codes of the following steps: the second device sends a perception measurement signal to the first device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; the first device processes the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal; the first device generates a measurement report, wherein the measurement report is used to describe the measurement error parameter; the first device sends the measurement report to a third device, wherein the third device is used to eliminate an error generated during transmission of the perception measurement signal received by the first device; the second device sends a transmitter error parameter to the third device, wherein the transmitter error parameter is used to describe an error recorded when the first device transmits the perception measurement signal; the third device processes the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

Optionally, the processor may also execute program codes of the following steps: measurement error parameters include at least one of the following: sampling time offset, sampling frequency offset; transmitting end error parameters include: time delay of cyclic shift diversity of transmitting antenna; measurement report includes at least one of the following: original measurement matrix of subcarriers within the perceived measurement signal bandwidth, center carrier frequency, amplitude of beamforming matrix, phase shift of beamforming matrix.

Optionally, the processor may also execute program code of the following steps: the second device and the third device are the same device.

A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

Example 5

The embodiment of the present invention further provides a computer-readable storage medium. Optionally, in this embodiment, the computer-readable storage medium can be used to store the program code executed by the wireless network communication method provided in the embodiment 1 above.

Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the mobile terminals in a mobile terminal group.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: receiving a perception measurement signal sent by a second device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; processing the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated by the perception measurement signal during transmission; generating a measurement report, wherein the measurement report includes a description of the measurement error parameter; and sending the measurement report.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: generating a measurement report, including: the physical layer of the first device generates a parameter vector based on the measurement error parameter, wherein the parameter vector includes the measurement error parameter; the physical layer transmits the parameter vector to the MAC layer of the first device through a message interface; the MAC layer generates the measurement report, wherein the measurement report includes the parameter vector.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: the MAC layer generates a measurement report, and also includes: the physical layer transmits signal parameters of the perception measurement signal to the MAC layer through a message interface, wherein the signal parameters include at least one of the following: the original measurement matrix of the subcarriers within the perception measurement signal bandwidth, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix; the MAC layer generates the measurement report, wherein the measurement report includes the signal parameters.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: the measurement error parameter includes at least one of the following: sampling time offset, sampling frequency offset.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: the above method also includes: receiving a perception measurement signal sent by the second device, including: receiving a long training symbol frame sent by the second device, wherein the long training symbol frame is used for channel state information CSI measurement.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for performing the following steps: the second device sends a perception measurement signal to the first device, wherein the perception measurement signal is used to measure the channel state between the first device and the second device; the first device processes the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used to describe an error generated during transmission of the perception measurement signal; the first device generates a measurement report, wherein the measurement report is used to describe the measurement error parameter; the first device sends the measurement report to a third device, wherein the third device is used to eliminate an error generated during transmission of the perception measurement signal received by the first device; the second device sends a transmitter error parameter to the third device, wherein the transmitter error parameter is used to describe an error recorded when the first device transmits the perception measurement signal; the third device processes the perception measurement signal received by the first device based on the measurement report and the transmitter error parameter to obtain channel frequency response information.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: the measurement error parameters include at least one of the following: sampling time offset, sampling frequency offset; the transmitting end error parameters include: time delay of cyclic shift diversity of the transmitting antenna; the measurement report includes at least one of the following: the original measurement matrix of the subcarriers within the perceived measurement signal bandwidth, the center carrier frequency, the amplitude of the beamforming matrix, and the phase shift of the beamforming matrix.

Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: The above method also includes: the second device and the third device are the same device.

The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims (10)

1. A wireless network communication method applied to a first device, the method comprising:

receiving a perception measurement signal sent by a second device, wherein the perception measurement signal is used for measuring a channel state between the first device and the second device;

processing the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used for describing an error generated in transmission of the perception measurement signal;

generating a measurement report, wherein the measurement report is used for describing the measurement error parameter;

and sending the measurement report.

2. The method of claim 1, wherein generating the measurement report comprises:

generating a parameter vector by a physical layer of the first device, wherein the parameter vector comprises the measurement error parameter;

the physical layer transmits the parameter vector to an MAC layer of the first device through a message interface;

the MAC layer generates the measurement report, wherein the measurement report includes the parameter vector.

3. The method of claim 2, wherein the MAC layer generates the measurement report, further comprising:

the physical layer passes signal parameters of the perceptual measurement signal to the MAC layer through the message interface, wherein the signal parameters include at least one of: an original measurement matrix of subcarriers within the sensing measurement signal bandwidth, a center carrier frequency, an amplitude of a beamforming matrix, and a phase shift of the beamforming matrix;

the MAC layer generates the measurement report, wherein the measurement report includes the signal parameter.

4. The method of claim 1, wherein the measurement error parameter comprises at least one of: sampling time offset, sampling frequency offset.

5. The method of claim 1, further comprising: receiving a perception measurement signal sent by a second device, comprising: and receiving a long training symbol frame sent by the second device, wherein the long training symbol frame is used for Channel State Information (CSI) measurement.

6. A wireless network communication method, comprising:

the method comprises the steps that a second device sends a perception measurement signal to a first device, wherein the perception measurement signal is used for measuring a channel state between the first device and the second device;

the first equipment processes the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used for describing an error generated in transmission of the perception measurement signal;

the first device generating a measurement report, wherein the measurement report is used for describing the measurement error parameter;

the first device sends the measurement report to a third device, wherein the third device is used for eliminating errors generated in transmission of the perception measurement signal received by the first device;

the second device sends a transmitting end error parameter to the third device, wherein the transmitting end error parameter is used for describing an error recorded when the first device transmits the perception measurement signal;

and the third equipment processes the perception measurement signal received by the first equipment based on the measurement report and the transmitting end error parameter to obtain channel frequency response information.

7. The method of claim 6,

the measurement error parameter comprises at least one of: sampling time offset, sampling frequency offset;

the transmitting end error parameters comprise: time delay of cyclic shift diversity of the transmit antennas;

the measurement report includes at least one of: an original measurement matrix of subcarriers within the sensing measurement signal bandwidth, a center carrier frequency, an amplitude of a beamforming matrix, a phase shift of the beamforming matrix.

8. The method of claim 6, further comprising: the second device and the third device are the same device.

9. A wireless network communication apparatus, applied in a first device, comprising:

a receiving module, configured to receive a sensing measurement signal sent by a second device, where the sensing measurement signal is used to measure a channel state between the first device and the second device;

the first processing module is used for processing the perception measurement signal to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used for describing an error generated in transmission of the perception measurement signal;

a first generating module, configured to generate a measurement report, where the measurement report is used to describe the measurement error parameter;

a first sending module, configured to send the measurement report.

10. A wireless network communication apparatus, comprising:

a second sending module, configured to send, by a second device, a sensing measurement signal to a first device, where the sensing measurement signal is used to measure a channel state between the first device and the second device;

the second processing module is used for processing the perception measurement signal by the first equipment to obtain a measurement error parameter of the perception measurement signal, wherein the measurement error parameter is used for describing an error generated in transmission of the perception measurement signal;

a second generating module, configured to generate a measurement report by the first device, where the measurement report is used to describe the measurement error parameter;

a third sending module, configured to send, by the first device, the measurement report to a third device, where the third device is configured to eliminate an error in transmission of the perceptual measurement signal received by the first device;

a fourth sending module, configured to send, by the second device, a transmitting end error parameter to the third device, where the transmitting end error parameter is used to describe an error recorded when the first device transmits the perceptual measurement signal;

a third processing module, configured to process, by the third device, the sensing measurement signal received by the first device based on the measurement report and the transmitting-end error parameter, so as to obtain channel frequency response information.

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