CN115884239A

CN115884239A - Wireless network communication method and device

Info

Publication number: CN115884239A
Application number: CN202111152872.6A
Authority: CN
Inventors: 吴昊; 王鑫
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2023-03-31

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

Background

Channel State Information (CSI) measurement in WiFi network measurement is widely used for different sensing purposes. The CSI measurement can reflect the characteristics of wireless multipath propagation, and a signal receiver in the measurement process captures the time-space frequency propagation characteristics and analyzes the state change of a plurality of subcarriers by measuring a known training sequence, so that the change of the surrounding environment is deduced, and the action behavior of a user can be judged in non-line-of-sight without using a sensor.

However, the WiFi channel can be modeled as y = Hx + n for each subcarrier in the measurement signal sent by the WiFi signal transmitter, where y is the received signal, x is the transmitted signal, H is the CSI matrix, and n is the noise vector. Obviously, the measured channel state information cannot faithfully reflect the perception of the signal propagation environment due to the interference of the noise vector, and the measurement accuracy of the environment is not high when the environment change is reflected by the channel state information due to the interference of the noise.

In view of the above problems, no effective solution has been proposed.

Disclosure of Invention

The embodiment of the invention provides a wireless network communication method and a wireless network communication device, which at least solve the technical problem that the measurement is inaccurate due to the influence of errors on the channel state measurement between devices.

According to an aspect of the embodiments of the present invention, there is provided a wireless network communication method, applied to a first device, including: 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; the generating a measurement report, wherein the measurement report includes a parameter describing the measurement error; and sending the measurement report.

Optionally, the generating a measurement report includes: generating a parameter vector by a physical layer of the first device according to the measurement error parameter, 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.

Optionally, the MAC layer generates the measurement report, further including: 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.

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

Optionally, the method further includes: 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.

According to another aspect of the embodiments of the present invention, there is also provided a wireless network communication method, including: 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 device 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.

Optionally, 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.

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

According to another aspect of the embodiments of the present invention, there is also provided a wireless network communication apparatus applied in a first device, including: 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.

According to still another aspect of the embodiments of the present invention, there is also provided a wireless network communication apparatus, including: 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 sensing 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.

According to still another aspect of the embodiments of the present invention, there is further provided a computer-readable storage medium, where the computer-readable storage medium includes a stored program, and when the program runs, the apparatus where the computer-readable storage medium is located is controlled to execute any one of the above wireless network communication methods.

According to still another aspect of the embodiments of the present invention, there is further provided a processor, configured to execute a program, where the program executes to perform any one of the wireless network communication methods described above.

In the embodiment of the invention, a sensing measurement signal which is sent by second equipment and used for measuring the channel state between the first equipment and the second equipment is received by the first equipment in a mode of sending the sensing measurement signal, the sensing measurement signal is processed to obtain a measurement error parameter of the sensing measurement signal, and a measurement report is generated and sent according to the measurement error parameter, so that the aim of obtaining the error generated in the transmission process of the sensing measurement signal used for measuring the channel state between the first equipment and the second equipment is fulfilled, the technical effect of improving the accuracy of the measurement result of the channel state measurement is realized, and the technical problem of inaccurate measurement caused by the influence of the error on the channel state measurement between the equipment is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 shows a hardware configuration block diagram of a computer terminal for implementing a wireless network communication method;

fig. 2 is a flowchart illustrating a first wireless network communication method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a second wireless network communication method according to an embodiment of the present invention;

fig. 4 is a block diagram of a first wireless network communication device according to an embodiment of the present invention;

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

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

First, partial terms or terms appearing in the description of the embodiments of the present application are applied to the following explanations:

channel State Information (CSI) is a channel attribute of a communication link and describes information such as fading factors of signals on each transmission path in the field of wireless communication.

Example 1

In accordance with an embodiment of the present invention, there is provided a wireless network communication method embodiment, it should be noted that the steps illustrated in the flowchart of the figure may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.

The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Fig. 1 shows a block diagram of a hardware configuration of a computer terminal for implementing a wireless network communication method. As shown in fig. 1, the computer terminal 10 may include one or more (shown as 102a, 102b, \ 8230; \8230;, 102 n) processors 102 (the processors 102 may include, but are not limited to, processing devices such as microprocessor MCUs or programmable logic devices FPGAs), a memory 104 for storing data, and a transmission module 106 for communication functions. Besides, the method can also comprise the following steps: 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), a network interface, a power source, and/or a camera. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.

It should be noted that the one or more processors 102 and/or other data processing circuitry described above may be referred to generally herein as "data processing circuitry". The data processing circuitry may be embodied in whole or in part in software, hardware, firmware, or any combination thereof. Further, the data processing circuit may be a single stand-alone processing module, or incorporated in whole or in part into any of the other elements in the computer terminal 10. As referred to in the embodiments of the application, the data processing circuit acts as a processor control (e.g. selection of a variable resistance termination path connected to the interface).

The memory 104 may 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, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, implementing the wireless network communication method of the application program. The memory 104 may include high-speed random access memory, and may also include 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 memory located remotely from the processor 102, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission module 106 is used to receive or transmit data via a network. Specific examples of the network described above 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 (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission module 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with the user interface of the computer terminal 10.

Fig. 2 is a flowchart illustrating a first wireless network communication method according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:

step S202, receiving a sensing measurement signal sent by the second device, where the sensing measurement signal is used to measure a channel state between the first device and the second device. It should be noted that the second device may be a sensing measurement signal transmitter in the channel state measurement process, and the first device may be a sensing measurement signal receiver in the above process. The other steps in this embodiment are continued after reception of the perceptual measurement signal by the first device.

And 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 for describing an error generated in transmission of the perception measurement signal. Alternatively, the measurement error parameter may include parameter information of the noise vector n. In the sensing measurement signal transmitted by the second device, for each subcarrier, the channel of the signal can be modeled as y = Hx + n, where 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 and is generated by the interference of the sensing measurement signal received by the hardware or software, and a specific magnitude of the factor may be obtained by processing the received sensing measurement signal by the first device.

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

Step S208, a measurement report is sent. The measurement report may be sent to a device capable of processing the measurement report, and the device may process the measurement report and other data to remove the interference effect of the measurement error, i.e., the noise vector, and obtain channel state information with higher accuracy.

Through the steps, the purpose of acquiring errors generated in the transmission process of the sensing measurement signals for measuring the channel state between the first device and the second device is achieved, the technical effect of improving the accuracy of the measurement result of the channel state measurement is achieved, and the technical problem that the channel state measurement between the devices is affected by the errors to cause inaccurate measurement is solved.

As an alternative embodiment, the sensing measurement signal transmitted 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 a CSI measurement, the CSI describes how a measurement sensing signal propagates from a second device to a first device on a specific carrier at a specific time, and the amplitude and phase of the CSI are attenuated and phase-shifted due to the effect of multipath. Optionally, each CSI measurement unit represents its corresponding Channel Frequency Response (CFR), which can be expressed as the following formula:

wherein a is _n (t) is the amplitude attenuation coefficient, τ _n (t) is the propagation delay, f is the carrier frequency. The amplitude | H | and phase @ H of the CSI are affected by the relative movement of the first device and the second device, and the motion of objects and people in the propagation environment. Thus, wireless characteristics in a signal propagation environment can be captured through measurement analysis of CSI. Further, the method can be applied to different sensing application scenes through mathematical modeling or machine learning algorithms based on the characteristics.

As an alternative embodiment, the measurement report may be generated by a 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 an MAC layer of the first equipment through a message interface; and according to the parameter vector, the MAC layer generates a measurement report. Optionally, the measurement error parameter comprises at least one of: sample time offset, sample frequency offset.

In this optional embodiment, the first device may include a physical layer and an MAC layer, where the physical layer may obtain an error generated in a signal propagation process while receiving the sensing measurement signal, generate a measurement error parameter according to the error, transmit the measurement error parameter to the MAC layer in a parameter vector manner, and the MAC layer is responsible for generating a measurement report and sending the report in a subsequent step.

Further, taking the example of SCI measurement by the WiFi system, for each subcarrier, the WiFi channel may be modeled as y = Hx + n, and the baseband CSI signal obtained by the first device through measurement of the measurement sensing signal may be represented as the following mathematical model:

wherein d is _i，j，n Represents the ith transmitting antenna, j represents the jth receiving antenna, n represents the data path between the antennas, f _k Is the carrier frequency, τ _i Is the time delay of Cyclic Shift Diversity (CSD) of the ith transmit antenna employed by the transmitting end, p is the Sample Time Offset (STO), f _k ' is the Sampling Frequency Offset (SFO), and q _i，j And σ _i，j Is the amplitude attenuation and phase shift of the beamforming matrix.

In the above noise factors, the CSD is known information when the second device transmits the measurement sensing signal, and therefore, the CSD can be eliminated by the error source and the error magnitude actively reported by the second device. In addition, the first device reports the sampling time offset and the sampling frequency offset obtained after the first device processes the measurement sensing signal through a measurement report, and quantitatively reports the signal interference called as the error or the noise factor.

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

Wherein, the central carrier frequency may be the central carrier frequency of the sensing measurement signal; the raw measurement matrices for the subcarriers may include raw measurement matrices for all subcarriers within the sensing measurement signal bandwidth; the amplitude of the beamforming matrix may include an amplitude attenuation of the beamforming matrix having a value of I × J, I representing the number of transmit antennas and J representing the number of receive antennas; the phase shift of the beamforming matrix may include I × J values, I representing the number of transmit antennas and J representing the number of receive antennas.

As an alternative, the measurement report may be sent to the third device, or may be sent to the second device. Wherein the third device may be a perceptual measurement report handler, which may be a perceptual measurement report receiver of each of the STAs. Or directly sending the measurement report to the second equipment, and carrying out data processing by the second equipment to obtain the CSI measurement result after the error is eliminated.

Fig. 3 is a flowchart illustrating 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 sensing measurement signal to the first device, wherein the sensing measurement signal is used for measuring the channel state between the first device and the second device. It should be noted that the second device may be a sensing measurement signal transmitter in the channel state measurement process, and the first device may be a sensing measurement signal receiver in the above process. After receiving the perceptual measurement signal by the first device, the other steps in this embodiment are continued to be completed.

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 for describing an error generated in transmission of the perception measurement signal. Alternatively, the measurement error parameter may include parameter information of the noise vector n. In the sensing measurement signal transmitted by the second device, for each subcarrier, the channel of the signal can be modeled as y = Hx + n, where 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 and is generated by interference of hardware or software on the sensing measurement signal, and a specific size of the factor may be obtained by processing the received sensing measurement signal by the first device.

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

Step S308, the first device sends a measurement report to a third device, where the third device is configured to eliminate an error generated in transmission of the sensing measurement signal received by the first device. The measurement report may be sent to a third device capable of processing the measurement report, and the device may process the measurement report and other data to remove the interference effect of the measurement error, i.e., the noise vector, and obtain channel state information with higher accuracy.

Step S310, the second device sends an error parameter of a transmitting terminal to the third device, wherein the error parameter of the transmitting terminal is used for describing an error recorded when the first device transmits the perception measurement signal. In this step, some errors of the sensing measurement signal are generated from the second device, i.e. the original transmitter, and the type of transmitting-end error parameter can be directly transmitted from the second device to the third device, so that the third device can eliminate the type of errors when the third device performs error elimination.

In step S312, the third device processes 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.

Alternatively, the channel frequency response information may be expressed as the following equation:

wherein a is _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 the CSI are affected by the relative movement of the first device and the second device, and the motion of objects and people in the propagation environment. Therefore, it is a hollow ballMeasurement analysis of CSI may capture radio characteristics in the signal propagation environment. Further, the method can be applied to different sensing application scenes through mathematical modeling or machine learning algorithms based on the characteristics.

The baseband CSI signal obtained by the first device through the measurement of the measurement sensing signal can be represented as the following mathematical model:

The CSI signal may be processed into channel frequency response information by eliminating error terms in the baseband CSI signal.

Through the steps, the purpose of acquiring errors generated in the transmission process of the sensing measurement signals for measuring the channel state between the first device and the second device is achieved, the technical effect of improving the accuracy of the measurement result of the channel state measurement is achieved, and the technical problem that the channel state measurement between the devices is inaccurate due to the influence of the errors is solved.

As an alternative embodiment, the second device sends a sensing measurement signal to the first device, wherein the sensing 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 equipment generates a measurement report, wherein the measurement report is used for describing a measurement error parameter; the first device sends a measurement report to a third device, wherein the third device is used for eliminating errors generated in transmission of a perception measurement signal received by the first device; the second equipment sends the transmitting end error parameter to the third equipment, wherein the transmitting end error parameter is used for describing the error recorded when the first equipment transmits the perception measurement signal; and the third equipment processes the sensing measurement signal received by the first equipment based on the measurement report and the error parameter of the transmitting terminal to obtain channel frequency response information.

As an alternative embodiment, the measurement error parameter may comprise 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 may include at least one of: sensing a raw measurement matrix of subcarriers within a measurement signal bandwidth, a center carrier frequency, an amplitude of a beamforming matrix, a phase shift of the beamforming matrix.

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

The above embodiments and alternative embodiments may be applied to various practical application scenarios, for example, as an alternative implementation, error elimination of CSI may be implemented in WiFi sensing applications according to the following process steps.

S1, after a first device and a second device negotiate to complete information exchange of sensing measurement capability and start CSI measurement, a local high-level parameter dot11CSIMsmtActivated of the first device is set to be activated or TURE.

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

And S3, after receiving the complete long training symbol frame, the physical layer of the first device transmits a parameter vector RXVECTOR to the MAC layer through message interfaces of the physical layer and the MAC layer, wherein the parameter vector RXVECTOR comprises a CSI measurement estimation result of the physical layer, and the CSI measurement estimation result comprises an error generated in the transmission process of the long training symbol frame estimated by the physical layer. Specifically, the RXVECTOR message includes the following parameters:

and S4, after receiving the parameter vector RXVECTOR, the MAC layer of the first device waits for a Trigger frame sent by the message processing device, and after receiving the Trigger frame, returns a measurement report to the message processing device at the air interface after the SIFS timer expires, wherein the message processing device can be a second device or a third device.

Specifically, the measurement report may include the following parameters:

the carrier group refers to selecting one carrier per Ng carriers, the index number of the carrier is Scidx, and the carrier represents the frequency domain response of the group, so as to reduce the size of an air interface of a feedback report.

And S5, the second or third equipment receives a complete measurement report at a fixed time, respectively extracts an original measurement matrix of each carrier, and removes error factors in original measurement sensing signals through digital signal processing to obtain channel frequency response information with errors eliminated.

Through the steps, the second or third equipment utilizes the reported error factors to perform digital signal noise reduction processing, so that the accuracy of CSI on environment perception is improved, and the perception level is optimized.

Example 2

According to an embodiment of the present invention, there is further provided a first wireless network communication device for implementing the first wireless network communication method, and fig. 4 is a block diagram of a first wireless network communication device according to an embodiment of the present invention, as shown in fig. 4, the first wireless network communication device 40 includes: a receiving module 42, a first processing module 44, a first generating module 46 and a first sending module 48, which are described below with respect to the first wireless network communication device 40.

A receiving module 42, configured to receive a sensing measurement signal sent by the 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 44 is configured to process the sensing measurement signal to obtain a measurement error parameter of the sensing measurement signal, where the measurement error parameter is used to describe an error generated in transmission of the sensing measurement signal;

a first generating module 46, configured to generate a measurement report, where the measurement report is used to describe a measurement error parameter;

a first sending module 48, configured to send the measurement report.

It should be noted here that the receiving module 42, the first processing module 44, the first generating module 46 and the first sending module 48 correspond to steps S202 to S208 in embodiment 1, and the modules are the same as the corresponding steps in the implementation example and application scenario, but are not limited to the disclosure in embodiment 1. It should be noted that the above modules may be operated in the computer terminal 10 provided in embodiment 1 as a part of the apparatus.

Example 3

According to an embodiment of the present invention, there is further provided a second wireless network communication device for implementing the second wireless network communication method, and fig. 5 is a block diagram of the second wireless network communication device according to the embodiment of the present invention, and as shown in fig. 5, the second wireless network communication device 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, which will be described below for the second wireless network communication device 50.

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

a second processing module 54, configured to process the sensing measurement signal by the first device to obtain a measurement error parameter of the sensing measurement signal, where the measurement error parameter is used to describe an error generated in transmission of the sensing measurement signal;

a second generating module 56, 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 58, configured to send, by the first device, a 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 60, 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 sensing measurement signal;

and a third processing module 62, configured to process, by the third device, the sensing measurement signal received by the first device based on the measurement report and the error parameter at the transmitting end, to obtain channel frequency response information.

It should be noted here 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 embodiment 1, and the modules are the same as the corresponding steps in the implementation example and application scenario, but are not limited to the disclosure in embodiment 1. It should be noted that the above modules may be operated in the computer terminal 10 provided in embodiment 1 as a part of the apparatus.

Example 4

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

The memory may be configured to store software programs and modules, such as program instructions/modules corresponding to the wireless network communication method and apparatus in the embodiments of the present invention, and the processor executes various functional applications and data processing by running the software programs and modules stored in the memory, so as to implement the wireless network communication method. The memory may include high speed random access memory, and may also include 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 may further include memory remotely located from the processor, which may be connected to the computer terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The processor can call the information and application program stored in the memory through the transmission device to execute 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.

Optionally, the processor may further execute the program code of the following steps: generating a measurement report, comprising: the physical layer of the first device generates a parameter vector according to the measurement error parameters, wherein the parameter vector comprises the measurement error parameters; the physical layer transmits the parameter vector to an MAC layer of the first equipment through a message interface; the MAC layer generates the measurement report, wherein the measurement report includes the parameter vector.

Optionally, the processor may further execute the program code of the following steps: the MAC layer generates a measurement report, and further comprises: the physical layer transfers signal parameters of the sensing measurement signal to the MAC layer through a message interface, wherein the signal parameters comprise at least one of the following: sensing an original measurement matrix of subcarriers within a 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.

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

Optionally, the processor may further execute the program code of the following steps: receiving a perception measurement signal sent by a second device, comprising: and receiving a long training symbol frame sent by the second equipment, wherein the long training symbol frame is used for measuring the CSI.

Optionally, the processor may further execute the program code of the following steps: the second equipment sends a perception measurement signal to the first equipment, wherein the perception measurement signal is used for measuring the channel state between the first equipment and the second equipment; 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 equipment generates a measurement report, wherein the measurement report is used for describing a measurement error parameter; the first device sends a measurement report to a third device, wherein the third device is used for eliminating errors generated in transmission of a perception measurement signal received by the first device; the second equipment sends the transmitting end error parameter to the third equipment, wherein the transmitting end error parameter is used for describing the error recorded when the first equipment transmits the perception measurement signal; and the third equipment processes the sensing measurement signal received by the first equipment based on the measurement report and the error parameter of the transmitting terminal to obtain channel frequency response information.

Optionally, the processor may further execute the program code of the following steps: the measurement error parameter includes 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: sensing a raw measurement matrix of subcarriers within a measurement signal bandwidth, a center carrier frequency, an amplitude of a beamforming matrix, a phase shift of the beamforming matrix.

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

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program instructing hardware associated with the terminal device, where the program may be stored in a computer-readable storage medium, and the storage medium may include: flash disks, read-Only memories (ROMs), random Access Memories (RAMs), magnetic or optical disks, and the like.

Example 5

Embodiments of the present invention also provide a computer-readable storage medium. Optionally, in this embodiment, the computer-readable storage medium may be configured to store program codes executed by the wireless network communication method provided in embodiment 1.

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

Optionally, in this embodiment, a computer-readable storage medium is configured to store program code for performing the steps of: 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 comprises parameters describing measurement errors; 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, comprising: the physical layer of the first device generates a parameter vector according to the measurement error parameters, wherein the parameter vector comprises the measurement error parameters; the physical layer transmits the parameter vector to an MAC layer of the first equipment 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 further comprises: the physical layer transfers signal parameters of the sensing measurement signal to the MAC layer through a message interface, wherein the signal parameters comprise at least one of the following: sensing an original measurement matrix of subcarriers within a 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.

Optionally, in this embodiment, the computer readable storage medium is configured to store program code for performing the following steps: the measurement error parameter includes at least one of: 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 method further comprises the following steps: receiving a perception measurement signal sent by a second device, comprising: and receiving a long training symbol frame sent by the second equipment, wherein the long training symbol frame is used for measuring the CSI.

Optionally, in this embodiment, the computer readable storage medium is configured to store program code for performing the following steps: the second equipment sends a perception measurement signal to the first equipment, wherein the perception measurement signal is used for measuring the channel state between the first equipment and the second equipment; 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 equipment generates a measurement report, wherein the measurement report is used for describing a measurement error parameter; the first device sends a measurement report to a third device, wherein the third device is used for eliminating errors generated in transmission of a perception measurement signal received by the first device; the second equipment sends the transmitting end error parameter to the third equipment, wherein the transmitting end error parameter is used for describing the error recorded when the first equipment transmits the perception measurement signal; and the third equipment processes the sensing measurement signal received by the first equipment based on the measurement report and the error parameter of the transmitting terminal 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 parameter includes 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: sensing a raw measurement matrix of subcarriers within a measurement signal bandwidth, a center carrier frequency, an amplitude of a beamforming matrix, a phase shift of the beamforming matrix.

Optionally, in this embodiment, the computer readable storage medium is configured to store program code for performing the following steps: the method further comprises the following steps: the second device and the third device are the same device.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit may be a division of a logic function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be an indirect coupling or communication connection through some interfaces, units or modules, and may be electrical or in other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

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.