A wireless communication quality assessment system

Abstract

This invention relates to a wireless communication quality assessment system, addressing the technical problems of low assessment efficiency and poor assessment accuracy. The system employs a technical solution including a reference signal acquisition and measurement unit connected to the back end of the signal source, which is connected to a quality assessment processing unit; a communication signal acquisition and storage unit located at a corresponding position on the receiving device, which acquires and stores the communication signal at time ti; the quality assessment unit is also connected to a radio frequency device performance monitoring unit and a channel performance assessment unit; and the quality assessment processing unit executes a program. This solution effectively solves the problem and can be used in wireless communication quality assessment.

Description

Technical Field

[0001] This invention relates to the field of wireless communication systems, and more specifically to a wireless communication quality assessment system. Background Technology

[0002] Wireless data communication is a communication method that transmits data information via radio waves. It developed from wired data communication and enables data communication while on the move. Data communication is a communication method that combines computers and telecommunications, primarily used to achieve communication between humans and computers, as well as between computers themselves.

[0003] Wireless communication quality assessment systems evaluate the overall communication quality of wireless communication systems. Existing wireless communication quality assessment systems suffer from low evaluation efficiency and poor accuracy. This invention provides a novel wireless communication quality assessment system to address these problems. Summary of the Invention

[0004] The technical problem to be solved by this invention is the low evaluation efficiency and poor evaluation accuracy of existing technologies. A new wireless communication quality evaluation system is provided, which features high evaluation efficiency and high evaluation accuracy.

[0005] To solve the above technical problems, the following technical solution is adopted:

[0006] A wireless communication quality assessment system is applicable to a full-duplex wireless communication system. The full-duplex wireless communication system includes a transmitting device and a receiving device used in conjunction with a receiving device. The transmitting device includes a signal source, a radio frequency switch, a radio frequency low-noise amplifier, a radio frequency power amplifier, a duplexer, a radio frequency filter, and an antenna unit connected in sequence. The wireless communication quality assessment system includes:

[0007] A reference signal acquisition and measurement unit is connected to the back end of the signal source, and the reference signal acquisition and measurement unit is connected to the quality assessment and processing unit; and a communication signal acquisition and storage unit is set at the corresponding location of the receiving device, which acquires and stores the communication signal at time ti.

[0008] The quality assessment and processing unit is also connected to the radio frequency device performance monitoring unit and the channel performance assessment unit;

[0009] The quality assessment and processing unit executes the following procedures:

[0010] S1, receive the channel evaluation result from the channel performance evaluation unit at time ti, and then... i Channel evaluation results at time t i-1The channel evaluation results at each time point are compared. If the difference exceeds a predefined threshold, step S5 is executed directly; otherwise, step S2 is executed.

[0011] S2, receives the monitoring results from the radio frequency device performance monitoring unit installed in the transmitting device, and sets t i The performance monitoring results of the radio frequency device at time t i-1 The performance monitoring results of the radio frequency device at any time are compared. If the difference exceeds the predefined threshold, step S5 is executed directly; otherwise, step S3 is executed.

[0012] S3, the quality assessment and processing unit receives the data sent by the receiving device. i The control command at a specific time is based on the t value monitored by the RF device performance monitoring unit at the receiving device. i The performance monitoring results of the radio frequency device at time t i-1 If the difference between the performance monitoring results of the radio frequency device at any given time exceeds a predefined threshold, the control instruction is to execute step S5; otherwise, the control instruction is to execute step S4.

[0013] S4. Based on the channel evaluation results of the channel performance evaluation unit in step S1, construct a simulated channel, calculate the simulated estimated communication signal based on the simulated channel, define the simulated estimated communication signal as the communication signal at time ti, and execute step S6.

[0014] S5, receiving the t returned by the receiving device i The communication signal at time t i The measured communication signal at time ti is defined as the communication signal at time ti.

[0015] S6, t i Communication signal at time t i The baseline signal is input at time i, a predefined quality assessment model is used, and the quality assessment result is calculated; where i is a positive integer.

[0016] The working principle of this invention is as follows: This invention decomposes wireless communication quality assessment into a process where channel assessment results, transmitter RF device performance monitoring results, and receiver RF device performance monitoring results are judged according to priority. If the fluctuation is small, the previous quality assessment method is maintained, that is, the previous parameter estimates are used to construct a virtual channel to simulate the back-transmitted communication signal parameters for communication system quality assessment. If the fluctuation is large, the measured communication signal needs to be transmitted to the receiver for communication system quality assessment. This improves both efficiency and accuracy.

[0017] In the above scheme, for optimization, the quality assessment model is further defined as (t) i Communication signal at time -t i (reference signal at time) / (t) i(Reference signal at time).

[0018] Furthermore, the channel performance evaluation unit includes a first acquisition terminal disposed at the rear end of the filter of the transmitting device, and a second acquisition terminal disposed at a corresponding position of the receiving device. The first and second acquisition terminals are used to acquire signal parameters; the channel performance evaluation unit executes the following program:

[0019] A1 receives the signal parameters acquired and transmitted by the first and second acquisition terminals;

[0020] A2, define a short period. Within the short period, only the change in the error value between the signal parameters acquired and transmitted by the first acquisition end and the signal parameters acquired and transmitted by the second acquisition end is calculated. If the change in the error value exceeds the threshold, step A3 is executed; otherwise, step A4 is executed.

[0021] A3 defines a long period; when the period executes step A4.

[0022] A4, the current actual measured value is calculated based on the signal parameters acquired and transmitted by the first acquisition terminal and the signal parameters acquired and transmitted by the second acquisition terminal, and is defined as follows:

[0023] A5, Constructing the estimation model Complete channel performance quality estimation;

[0024] in, Let time t i The estimated value, Let time t i-1 The estimated value, This is the actual value currently measured;

[0025]

[0026] Δ max For the m items currently actually detected The maximum value in, Indicates the error coefficient of the estimation process;

[0027]

[0028] Let time t i-1 The estimated value is μ, which is a parameter value predefined according to the specific situation, and E() is the filtering function.

[0029] Furthermore, the radio frequency device performance monitoring unit performs radio frequency device performance monitoring using the following method:

[0030] J1 collects operating status parameters of the built-in components of the transmitting device and the receiving device. The built-in components include RF switches, RF low-noise amplifiers, RF power amplifiers, duplexers, RF filters, and antenna units.

[0031] J2 performs weighted calculations on the operating status parameters of each built-in component module to complete the calculation of the RF device performance parameters and calculate t. i The performance parameters of the radio frequency device at time t i-1 The error value between the performance parameters of the radio frequency device at any given time is output as the monitoring result.

[0032] In the preferred scheme, by alternating between long and short periods, the short period only calculates the change in error between the signal parameters acquired and transmitted by the first acquisition end and the signal parameters acquired and transmitted by the second acquisition end; the long period calculates the current actual measurement value based on the signal parameters acquired and transmitted by the first and second acquisition ends. This improves efficiency and maintains a balance between efficiency and accuracy.

[0033] Furthermore, the quality assessment model includes at least three types, and the quality assessment processing unit further includes:

[0034] The quality assessment effectiveness evaluation unit is used to evaluate the effectiveness and quality parameters of the quality assessment model.

[0035] In the quality assessment model selection unit, the following procedure is executed:

[0036] C1, at least two quality assessment models are selected at the same time in the time series to form a quality assessment model combination, and the selection of quality assessment models in the time series is the quality assessment time series strategy;

[0037] C2 calculates the quality assessment results of the combination of quality assessment models by time-series weighting, and evaluates the effectiveness of the quality assessment results of the combination of quality assessment models at each time point to obtain dynamic evaluation results;

[0038] C3. Compare the dynamic evaluation results with the predefined thresholds. If the results are better than the thresholds, define the current quality assessment model combination as a qualified quality assessment model combination and execute step S6. If the results are worse than the thresholds, execute step C4 to optimize the current quality assessment timing strategy.

[0039] C4. Select a new quality assessment model combination to replace the current quality assessment timing strategy, and optimize the design of the new quality assessment timing strategy.

[0040] The preferred approach involves selecting at least two quality assessment models simultaneously in time series to form a quality assessment model combination. The selection of the quality assessment model in time series serves as the quality assessment time series strategy, and the dynamic quality of the quality assessment time series strategy is evaluated to determine whether to maintain or update the strategy.

[0041] The present invention, through the above solutions, can improve efficiency and accuracy. Attached Figure Description

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Figure 1 Flowchart of the quality assessment and processing unit. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0045] Example 1

[0046] This embodiment provides a wireless communication quality assessment system applicable to a full-duplex wireless communication system. The full-duplex wireless communication system includes a transmitting device and a receiving device used in conjunction with a receiving device. The transmitting device includes a signal source, a radio frequency switch, a radio frequency low-noise amplifier, a radio frequency power amplifier, a full-duplexer, a radio frequency filter, and an antenna unit connected in sequence. The wireless communication quality assessment system includes:

[0047] A reference signal acquisition and measurement unit is connected to the back end of the signal source, and the reference signal acquisition and measurement unit is connected to the quality assessment and processing unit; and a communication signal acquisition and storage unit is set at the corresponding location of the receiving device, which acquires and stores the communication signal at time ti.

[0048] The quality assessment and processing unit is also connected to the radio frequency device performance monitoring unit and the channel performance assessment unit;

[0049] like Figure 1 The quality assessment and processing unit executes the following procedures:

[0050] S1, receive the channel evaluation result from the channel performance evaluation unit at time ti, and then... i Channel evaluation results at time t i-1 The channel evaluation results at each time point are compared. If the difference exceeds a predefined threshold, step S5 is executed directly; otherwise, step S2 is executed.

[0051] S2, receives the monitoring results from the radio frequency device performance monitoring unit installed in the transmitting device, and sets ti The performance monitoring results of the radio frequency device at time t i-1 The performance monitoring results of the radio frequency device at any time are compared. If the difference exceeds the predefined threshold, step S5 is executed directly; otherwise, step S3 is executed.

[0052] S3, the quality assessment and processing unit receives the data sent by the receiving device. i The control command at a specific time is based on the t value monitored by the RF device performance monitoring unit at the receiving device. i The performance monitoring results of the radio frequency device at time t i-1 If the difference between the performance monitoring results of the radio frequency device at any given time exceeds a predefined threshold, the control instruction is to execute step S5; otherwise, the control instruction is to execute step S4.

[0053] S4. Based on the channel evaluation results of the channel performance evaluation unit in step S1, construct a simulated channel, calculate the simulated estimated communication signal based on the simulated channel, define the simulated estimated communication signal as the communication signal at time ti, and execute step S6.

[0054] S5, receiving the t returned by the receiving device i The communication signal at time t i The measured communication signal at time ti is defined as the communication signal at time ti.

[0055] S6, t i Communication signal at time t i The baseline signal is input at time i, a predefined quality assessment model is used, and the quality assessment result is calculated; where i is a positive integer.

[0056] This embodiment decomposes the wireless communication quality assessment into a process where channel assessment results, transmitter RF device performance monitoring results, and receiver RF device performance monitoring results are judged according to priority. If the fluctuation is small, the previous quality assessment method is maintained, that is, the previous parameter estimates are used to construct a virtual channel to simulate the backhauled communication signal parameters for communication system quality assessment. If the fluctuation is large, the measured communication signal needs to be transmitted to the receiver for communication system quality assessment. This improves both efficiency and accuracy.

[0057] Preferably, the quality assessment model is (t i Communication signal at time -t i (reference signal at time) / (t) i (Reference signal at time).

[0058] Preferably, the channel performance evaluation unit includes a first acquisition terminal disposed at the rear end of the filter of the transmitting device and a second acquisition terminal disposed at a corresponding position of the receiving device. The first and second acquisition terminals are used to acquire signal parameters; the channel performance evaluation unit executes the following program:

[0059] A1 receives the signal parameters acquired and transmitted by the first and second acquisition terminals;

[0060] A2, define a short period. Within the short period, only the change in the error value between the signal parameters acquired and transmitted by the first acquisition end and the signal parameters acquired and transmitted by the second acquisition end is calculated. If the change in the error value exceeds the threshold, step A3 is executed; otherwise, step A4 is executed.

[0061] A3 defines a long period; when the period executes step A4.

[0062] A4, the current actual measured value is calculated based on the signal parameters acquired and transmitted by the first acquisition terminal and the signal parameters acquired and transmitted by the second acquisition terminal, and is defined as follows:

[0063] A5, Constructing the estimation model Complete channel performance quality estimation;

[0064] in, Let time t i The estimated value, Let time t i-1 The estimated value, This is the actual value currently measured;

[0065]

[0066] Δ max For the m items currently actually detected The maximum value in, Indicates the error coefficient of the estimation process;

[0067]

[0068] Let time t i-1 The estimated value is μ, which is a parameter value predefined according to the specific situation, and E() is the filtering function.

[0069] Furthermore, the radio frequency device performance monitoring unit performs radio frequency device performance monitoring using the following method:

[0070] J1 collects operating status parameters of the built-in components of the transmitting device and the receiving device. The built-in components include RF switches, RF low-noise amplifiers, RF power amplifiers, duplexers, RF filters, and antenna units.

[0071] J2 performs weighted calculations on the operating status parameters of each built-in component module to complete the calculation of the RF device performance parameters and calculate t. i The performance parameters of the radio frequency device at time t i-1 The error value between the performance parameters of the radio frequency device at any given time is output as the monitoring result.

[0072] In the preferred scheme, by alternating between long and short periods, the short period only calculates the change in error between the signal parameters acquired and transmitted by the first acquisition end and the signal parameters acquired and transmitted by the second acquisition end; the long period calculates the current actual measurement value based on the signal parameters acquired and transmitted by the first and second acquisition ends. This improves efficiency and maintains a balance between efficiency and accuracy.

[0073] Preferably, the quality assessment model is at least three types, and the quality assessment processing unit further includes:

[0074] The quality assessment effectiveness evaluation unit is used to evaluate the effectiveness and quality parameters of the quality assessment model.

[0075] In the quality assessment model selection unit, the following procedure is executed:

[0076] C1, at least two quality assessment models are selected at the same time in the time series to form a quality assessment model combination, and the selection of quality assessment models in the time series is the quality assessment time series strategy;

[0077] C2 calculates the quality assessment results of the combination of quality assessment models by time-series weighting, and evaluates the effectiveness of the quality assessment results of the combination of quality assessment models at each time point to obtain dynamic evaluation results;

[0078] C3. Compare the dynamic evaluation results with the predefined thresholds. If the results are better than the thresholds, define the current quality assessment model combination as a qualified quality assessment model combination and execute step S6. If the results are worse than the thresholds, execute step C4 to optimize the current quality assessment timing strategy.

[0079] C4. Select a new quality assessment model combination to replace the current quality assessment timing strategy, and optimize the design of the new quality assessment timing strategy.

[0080] The preferred approach involves selecting at least two quality assessment models simultaneously in time series to form a quality assessment model combination. The selection of the quality assessment model in time series serves as the quality assessment time series strategy, and the dynamic quality of the quality assessment time series strategy is evaluated to determine whether to maintain or update the strategy.

[0081] This embodiment improves efficiency and accuracy through the above solution.

[0082] Although the illustrative specific embodiments of the present invention have been described above to enable those skilled in the art to understand the invention, the invention is not limited to the scope of the specific embodiments. For those skilled in the art, all inventions utilizing the concept of the present invention are protected as long as various variations are within the spirit and scope of the invention as defined and determined by the appended claims.

Claims

1. A wireless communication quality assessment system, applicable to a full-duplex wireless communication system, the full-duplex wireless communication system comprising a transmitting device and a receiving device used in conjunction with the transmitting device, the transmitting device comprising a signal source, a radio frequency switch, a radio frequency low-noise amplifier, a radio frequency power amplifier, a duplexer, a radio frequency filter, and an antenna unit connected in sequence, characterized in that: The wireless communication quality evaluation system comprises: A reference signal acquisition and measurement unit connected at the back end of the signal source, the reference signal acquisition and measurement unit connected to the quality evaluation processing unit; and a communication signal acquisition and storage unit provided at the corresponding receiving device, the communication signal acquisition and storage unit acquires and stores the communication signal at time t i ​ The quality evaluation processing unit is further connected with a radio frequency device performance monitoring unit and a channel performance evaluation unit; The quality evaluation processing unit executes the following procedures: S1, receiving t i the channel evaluation result of the channel performance evaluation unit at time t the channel evaluation result of the channel performance evaluation unit at time t the channel evaluation result of the channel performance evaluation unit at time t performing step S5, otherwise performing step S2; S2, receiving the monitoring result of the radio device performance monitoring unit arranged in the transmitting device, and comparing the monitoring result with the radio device performance monitoring result at the time point S3, comparing the monitoring result of the radio device performance monitoring unit arranged in the transmitting device with the radio device performance monitoring result at the time point S4, if the difference exceeds a predefined threshold, directly executing step S5, otherwise executing step S3. S3, the quality evaluation processing unit receives the control instruction sent by the receiving device at the moment, compares the radio device performance monitoring result at the moment monitored by the radio device performance monitoring unit at the receiving device with the radio device performance monitoring result at the moment, and if the difference exceeds a predefined threshold, the control instruction is to execute step S5, otherwise the control instruction is to execute step S4. S4, according to the channel evaluation result of the channel performance evaluation unit of step S1, constructing a simulation channel, calculating a simulation estimated communication signal according to the simulation channel, and defining the simulation estimated communication signal as t i the communication signal at the time, and executing step S6; S5, receiving the backhaul from the receiving device the communication signal at the time instant t the measured communication signal at the time instant t i the communication signal at the time instant t S6, will the communication signal at the moment and the reference signal at the moment, a predefined quality evaluation model, and a quality evaluation result is calculated; wherein i is a positive integer. The quality assessment model is ( Communication signals at any time (reference signal at time) / ( (Reference signal at time) The channel performance evaluation unit comprises a first collection end arranged at the rear end of a filter of the transmitting device and a second collection end arranged at the corresponding position of the receiving device, and the first collection end and the second collection end are used for collecting signal parameters; the channel performance evaluation unit executes the following procedures: A1, collecting the signal parameters transmitted by the first collection end and the second collection end; A2, defining a short period, and only calculating the change value of the error value between the signal parameters collected by the first collection end and the signal parameters collected by the second collection end in the short period, and if the change value of the error value exceeds a threshold value, executing step A3, otherwise executing A4; A3, defining a long period, and executing step A4 in the long period; A4, calculating the current actual measurement value according to the signal parameter collected by the first collection end and the signal parameter collected by the second collection end, defined as ; A5, constructing an estimation model , completing channel performance quality estimation; wherein is an estimate of the time , is an estimate of the time , is the current measured actual value; ； the maximum of the m current actually detected the maximum of the m current actually detected denotes the error coefficient of the estimation process; ； is an estimate of the time of day, is an estimate of the time of day, is a parameter value predefined according to the specific case, and E() is a filtering function. The radio frequency device performance monitoring unit completes the radio frequency device performance monitoring by using the following method: J1, collecting the running state parameters of the built-in component modules of the transmitting device and the built-in component modules of the receiving device, and the built-in component modules comprise radio frequency switches, radio frequency low-noise amplifiers, radio frequency power amplifiers, duplexers, radio frequency filters and antenna units; J2, the running state parameters of each built-in component module are weighted and calculated, the performance parameter calculation of the radio frequency device is completed, and the performance parameters of the radio frequency device at different times are calculated The error value between the performance parameters of the radio frequency device at different times is output as a monitoring result. The error value between the performance parameters of the radio frequency device at different times is output as a monitoring result.

2. The wireless communication quality assessment system of claim 1, wherein: The quality evaluation model is at least three kinds, and the quality evaluation processing unit further comprises: A quality evaluation effect evaluation unit is used for evaluating the effect quality parameters of the quality evaluation model; The quality evaluation model selection unit executes the following procedures: C1, selecting at least two quality evaluation models to form a quality evaluation model combination at the same time in time sequence, and the selection of the quality evaluation model in time sequence is used as a quality evaluation time sequence strategy; C2, calculating the quality evaluation results of the quality evaluation model combination according to time sequence, and evaluating the effect of the quality evaluation results of the quality evaluation model combination at each time to obtain a dynamic evaluation result; C3, comparing the dynamic evaluation result with a pre-defined threshold value, if the dynamic evaluation result is better than the threshold value, defining the current quality evaluation model combination as a qualified quality evaluation model combination, and executing step S6; if the dynamic evaluation result is worse than the threshold value, executing step C4 to optimize the current quality evaluation time sequence strategy; C4, selecting a new quality evaluation model combination to replace the current quality evaluation time sequence strategy, and optimizing the design of a new quality evaluation time sequence strategy.

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