CN112825534B - Sensitivity deterioration detection method, device and storage medium - Google Patents
Sensitivity deterioration detection method, device and storage medium Download PDFInfo
- Publication number
- CN112825534B CN112825534B CN201911149868.7A CN201911149868A CN112825534B CN 112825534 B CN112825534 B CN 112825534B CN 201911149868 A CN201911149868 A CN 201911149868A CN 112825534 B CN112825534 B CN 112825534B
- Authority
- CN
- China
- Prior art keywords
- noise
- terminal
- signal
- sensitivity
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The embodiment of the application discloses a sensitivity degradation detection method, a device and a storage medium, wherein the method comprises the following steps: detecting first noise power corresponding to a first noise signal in a receiving channel of a terminal; the first noise signal is an inherent noise signal of the terminal; detecting second noise power corresponding to the first noise signal and the second noise signal in the receiving channel of the terminal; the second noise signal is a noise signal sent by at least one signal interference source; a terminal sensitivity deterioration amount is determined based on the first noise power and the second noise power. Therefore, the single measurement time of the sensitivity deterioration amount is reduced from several tens of minutes to several seconds, the measurement speed is greatly improved, the measurement time of the complete sensitivity deterioration process is reduced, various sensitivity deterioration problems can be rapidly found, and the development period of the terminal is shortened.
Description
Technical Field
The present invention relates to terminal technologies, and in particular, to a method and apparatus for detecting sensitivity degradation, and a storage medium.
Background
The functions of the intelligent terminal of the mobile phone are more and more, the communication system is more and more diversified and complicated, various broadband noises for the sensitivity of the communication system are more and more serious, and in order to optimally design the intelligent terminal, the deterioration condition of the sensitivity of an interference source in the terminal to a receiver of the wireless communication system is required to be comprehensively evaluated. The existing testing method is to open various suspicious interferences of the intelligent terminal, simulate various interference scenes, use a signaling comprehensive tester to test how much dB of sensitivity is deteriorated under the condition of noise to evaluate the advantages and disadvantages of the receiver, for example, after WiFi is started, measure the deterioration condition of the WiFi on the sensitivity of the LTE or 5G NR receiver. The connection relation of the test scheme is as shown in fig. 1, and a signaling comprehensive tester 102 is connected to a receiving antenna port of a terminal 101.
In the existing method for directly testing the sensitivity, the degradation condition of the sensitivity needs to be evaluated when the downlink useful signal power sent by the signaling comprehensive tester starts from high power (such as-20 dBm) and continuously decreases to the vicinity of the noise power of an interference source, and each frequency point and each interference scene are the same, so that the time required for comprehensively evaluating the degradation of the sensitivity is very long, and generally, the time required for testing all scenes is about one week. In the research and development stage, the optimization of the scheme, the discovery of the problems and the like are all required to be evaluated under the test method, so that a method capable of evaluating the sensitivity deterioration more rapidly is urgently needed, and the speed of the whole intelligent terminal on the improvement of the sensitivity deterioration is improved
Disclosure of Invention
In order to solve the above technical problems, it is desirable to provide a sensitivity degradation detection method, a device and a storage medium.
The technical scheme of the application is realized as follows:
in a first aspect, there is provided a sensitivity deterioration detection method, the method comprising:
when a terminal receives a first noise signal, detecting first noise power corresponding to the first noise signal in a terminal receiving channel; the first noise signal is an inherent noise signal of the terminal;
when the terminal receives the first noise signal and the second noise signal, detecting second noise power corresponding to the first noise signal and the second noise signal in a receiving channel of the terminal; the second noise signal is a noise signal sent by at least one signal interference source;
an amount of sensitivity deterioration of the terminal is determined based on the first noise power and the second noise power.
In a second aspect, there is provided a sensitivity deterioration detecting apparatus comprising:
the acquisition unit is used for detecting first noise power corresponding to the first noise signal in a terminal receiving channel when the terminal receives the first noise signal; the first noise signal is an inherent noise signal of the terminal;
the acquiring unit is configured to detect, when the terminal receives the first noise signal and the second noise signal, second noise powers corresponding to the first noise signal and the second noise signal in the terminal receiving channel; the second noise signal is a noise signal sent by at least one signal interference source;
and a processing unit configured to determine an amount of sensitivity deterioration of the terminal based on the first noise power and the second noise power.
In a third aspect, there is provided a sensitivity deterioration detecting apparatus comprising: a processor and a memory configured to store a computer program capable of running on the processor, wherein the processor is configured to perform the steps of the aforementioned method when the computer program is run.
In a fourth aspect, a computer readable storage medium is provided, on which a computer program is stored, wherein the computer program, when being executed by a processor, carries out the steps of the aforementioned method.
By adopting the technical scheme, the first noise power corresponding to the inherent noise signal of the terminal is detected; and a second noise power of the noise signal emitted by the inherent noise signal and the at least one interference source; therefore, based on the first noise power and the second noise power, the sensitivity degradation amount of the terminal is rapidly estimated, so that the single measurement time of the sensitivity degradation amount is reduced from a few tens of minutes to a few seconds, the measurement speed is greatly improved, the measurement time of the complete sensitivity degradation process is reduced, various sensitivity degradation problems can be rapidly found, and the development period of the terminal is shortened.
Drawings
FIG. 1 is a schematic diagram showing the constitution of a conventional sensitivity deterioration detecting system;
FIG. 2 is a flow chart of a method for detecting sensitivity deterioration according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a first component of the detection system according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a second component of the detection system according to the embodiment of the present application;
FIG. 5 is a schematic diagram of a third component of the detection system according to the embodiment of the present application;
FIG. 6 is a schematic diagram showing a first constitution of a sensitivity deterioration detecting apparatus according to an embodiment of the present application;
fig. 7 is a schematic diagram of a second composition structure of the sensitivity deterioration detecting apparatus in the embodiment of the present application.
Detailed Description
For a more complete understanding of the features and technical content of the embodiments of the present application, reference should be made to the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings, which are for purposes of illustration only and not intended to limit the embodiments of the present application.
An embodiment of the present application provides a method for detecting sensitivity degradation, and fig. 2 is a schematic flow chart of the method for detecting sensitivity degradation in the embodiment of the present application, as shown in fig. 2, where the method specifically may include:
step 201: when a terminal receives a first noise signal, acquiring first noise power corresponding to the first noise signal in a terminal receiving channel; the first noise signal is an inherent noise signal of the terminal;
step 202: when the terminal receives the first noise signal and the second noise signal, acquiring second noise power corresponding to the first noise signal and the second noise signal in a terminal receiving channel; the second noise signal is a noise signal sent by at least one signal interference source;
step 203: an amount of sensitivity deterioration of the terminal is determined based on the first noise power and the second noise power.
Here, the execution subject of steps 201 to 203 may be a processor of the sensitivity deterioration detecting apparatus. Here, the detection device may be a device having a power detection function, such as: the system comprises a frequency spectrograph, a power meter and a signaling comprehensive tester; alternatively, the detection device may not have a power detection function, and the noise power detected by the power detection device may be acquired, and the received noise power may be processed to obtain the sensitivity degradation amount.
Here, the terminal may be a terminal having a signal receiving function, and may be capable of receiving an external noise signal and a useful signal. Such as smartphones, personal computers (e.g., tablet, desktop, notebook, netbook, palmtop), mobile phones, e-book readers, portable multimedia players, audio/video players, cameras, virtual reality devices, wearable devices, etc.
The sensitivity is the minimum signal receiving power at which the receiver can correctly extract the useful signal, and the calculation formula of the receiving sensitivity (in the embodiment of the present application, simply referred to as "sensitivity") S is:
S＝10lg(KTB)+NF+SNR
wherein S is sensitivity, and the unit is dBm; k is a Boltzmann constant in J/K; t is absolute temperature, and the unit is K; KT is the thermal noise power per Hz at the current temperature; b represents the signal bandwidth in Hz; KTB represents thermal noise power in the bandwidth range and represents system bottom noise, and the unit is dBm; NF represents the noise figure of the system in dB; SNR represents the signal-to-noise ratio required for demodulation in dB.
SNR(dB)＝10lg(PS/PN)
Where PS is useful signal power and PN is noise signal power.
Assuming that the sensitivity is calculated in a test environment of 20 ° at room temperature, the calculation formula of the sensitivity is specifically:
S＝-174(dBm)+10lgB(dB)+NF(dB)+SNR(dB)
the noise figure NF and the channel bandwidth B will not change when the receiver is unchanged, but the signal-to-noise ratio of the receiver as a whole will be deteriorated under different interference signals. Firstly, the noise power change condition in the whole channel bandwidth is measured, the ratio of the useful signal to the noise must be increased to maintain the SNR required by correctly demodulating the received signal unchanged, so that the deterioration condition of the sensitivity of the power change condition era of the useful signal can be determined according to the required SNR value and the noise power change condition.
Here, the inherent noise of the terminal itself may be noise of a fixed power which the terminal device continuously exists in relation to the device of the terminal itself or in relation to the environment in which the terminal is located, and the first noise power does not vary with the change of the environment in which the terminal is located.
When the terminal is at a different interference source, the received noise signal changes, and therefore the second noise power will vary with the environmental interference source.
In some embodiments, the method further comprises: determining a signal to noise ratio required by the terminal demodulation based on the sensitivity, noise coefficient and channel bandwidth of the terminal; the determining, based on the first noise power and the second noise power, an amount of sensitivity degradation of the terminal includes: the sensitivity deterioration amount is determined based on the first noise power, the second noise power, and a signal-to-noise ratio required for the terminal demodulation.
That is, after determining the signal-to-noise ratio required for terminal demodulation, the amount of deterioration of sensitivity can be determined in combination with the change in noise power.
In some embodiments, the determining the sensitivity degradation amount of the terminal includes: calculating the difference between the second noise power and the first noise power to obtain a noise power difference; calculating the sensitivity degradation amount based on the noise power difference value and the signal to noise ratio required by the terminal demodulation; or determining a first sensitivity of the terminal based on the signal-to-noise ratio required for demodulation of the terminal and the first noise power; determining a second sensitivity of the terminal based on the signal-to-noise ratio required for demodulation by the terminal and the second noise power; and calculating the difference between the second sensitivity and the first sensitivity to obtain the sensitivity degradation amount.
Specifically, when the signal to noise ratio required for demodulation of the terminal is 0, the determining the sensitivity degradation amount of the terminal includes: calculating a difference value between the second noise power and the first noise power, and determining a target noise power corresponding to the second noise signal; and taking the target noise power as the sensitivity degradation amount of the terminal.
Here, the signal-to-noise ratio of 0 is the minimum requirement when demodulating the useful signal, which means that the useful signal and the noise signal must be the same size, so that the terminal can correctly demodulate the useful signal, and at this time, the variation of the noise signal is the variation of the useful signal, i.e. the variation of the noise signal can be directly used as the sensitivity degradation.
When the signal-to-noise ratio is greater than 0, it indicates that the useful signal power must be increased in the same proportion to the noise signal power to maintain the SNR required for correctly demodulating the received signal unchanged. Therefore, the power variation value of the noise signal can be calculated first, and then the power variation value of the useful signal (namely, the deterioration value of the sensitivity) can be determined according to the power variation value of the noise signal and the signal to noise ratio; alternatively, the useful signal power (i.e., the first sensitivity and the second sensitivity) is calculated based on the noise signal and the signal-to-noise ratio, and then the sensitivity difference is calculated to obtain the deterioration amount of the sensitivity.
In some embodiments, the receiving port of the terminal is connected to a power measurement device; the obtaining the first noise power corresponding to the first noise signal in the terminal receiving channel includes: acquiring the first noise power detected by the power measuring device; the obtaining the second noise power corresponding to the first noise signal and the second noise signal in the terminal receiving channel includes: and acquiring the second noise power detected by the power measuring device.
In some embodiments, prior to detecting the first noise power, the method further comprises: and adjusting the measurement center frequency of the power measurement device to the center frequency of the terminal receiving channel.
Fig. 3 is a schematic diagram of a first component structure of a detection system according to an embodiment of the present application, as shown in fig. 3, the detection system includes a terminal 301 and a power measurement device 302, where the power measurement device 302 is connected to a receiving antenna port of the terminal 301, and is used for measuring noise power in a receiving channel of the terminal. For example, the power measurement device may be a spectrometer.
In practical application, the receiving antenna port and the transmitting antenna port of the terminal share ports or are independent ports.
Specific test steps are also provided in the embodiments of the present application:
1. connecting a receiving antenna port of the terminal with the spectrometer by using a radio frequency cable according to figure 3;
2. adjusting the measured center frequency of the spectrometer to the center frequency of the current receiving channel of the terminal;
3. the method comprises the steps that a channel power measurement page of a spectrometer is entered, channel bandwidth to be measured is set, a tracking mode (trace mode) of the spectrometer is set to be maximum value maintenance (Max Hold), the noise power of the current whole receiving channel is read, and the noise power is recorded as noise power of the terminal A and the terminal A;
4. opening a certain interference scene of the terminal, such as opening a data connection of a secondary card to send an uplink signal or receive a downlink signal, opening a network hot spot, accessing a wireless network and the like;
5. repeating the third part, recording the noise power at the moment, and recording as B, wherein B is the noise power obtained by superposition of external noise and bottom noise;
6. the difference obtained according to B-A is the worsening value of the sensitivity.
Here, the signal-to-noise ratio is maintained at 0.
In order to verify that the sensitivity degradation detection method in the embodiment of the present application is feasible, the embodiment of the present application uses the interference signal source and the useful signal source to construct a signal receiving scene when a noise signal is constructed, and in the prior art, the sensitivity measurement is directly compared with the measurement result of measuring the channel noise power to calculate the sensitivity.
Fig. 4 is a schematic diagram of a second component structure of the detection system in the embodiment of the present application, and fig. 4 shows a measurement structure for measuring the loss of the first radio frequency path and the second radio frequency path, where the detection system includes: a spectrometer 401, a power synthesizer 402, an interference signal source 403, and a signaling synthesizer 404; the radio frequency path between the interference signal source 403 and the spectrometer 401 is a first radio frequency path, the radio frequency path between the signaling synthesis instrument 404 and the spectrometer 401 is a second radio frequency path, the interference signal source 403 provides noise signals under different interference scenes, the signaling synthesis instrument 404 is used for providing useful signals, and the interference signals and the useful signals are synthesized by the power synthesizer 402 and then sent to the spectrometer 401.
1. According to the connection test environment of fig. 4, firstly, sine waves emitted by a signaling comprehensive tester 404 and an interference signal source 403 are respectively measured at a terminal receiving port through a frequency spectrograph 401, so that the loss of a useful signal in a first radio frequency path is 6dB, and the loss of a noise signal in a second radio frequency path is about 5 dB.
Fig. 5 is a schematic diagram of a third component structure of the detection system in the embodiment of the present application, and fig. 5 is a schematic diagram of replacing the spectrometer 401 with the terminal 405, and when the terminal 405 actually receives the noise signal, the spectrometer 401 is used to measure the noise power of the receiving antenna port.
2. According to the connection test environment of fig. 5, when the spectrometer 401 is used to test the noise power of the terminal in the whole receiving channel bandwidth under the condition that only the interference signal exists, the interference signal emitted by the interference signal source is 100mhz 5g NR signal, the output noise power is-50 dBm, and because of the loss of the second radio frequency path being 5dB, the spectrometer measures the noise power actually reaching the radio frequency port of the terminal as-55 dBm.
3. Through sensitivity estimation, we know that the noise power in the channel of the receiving antenna port of the terminal reaches-55 dBm (the path loss is added), and the useful signal must be the same as the noise power without considering the processing gain, that is, the SNR is 0dB, the terminal receiver can correctly demodulate the useful signal, so the sensitivity will deteriorate to-55 dBm, because the path loss of the useful signal of the signaling comprehensive tester 404 reaching the receiving antenna port of the terminal 405 in the first radio frequency path is 6dB, and the sensitivity measured on the actual signaling comprehensive tester is about-49 dBm.
4. The sensitivity test is carried out by the signaling comprehensive tester, the sensitivity is deteriorated to about-49 dBm after actual measurement, and the sensitivity judgment standard is the maximum throughput rate with the downlink throughput rate being more than or equal to 95%, which indicates that the sensitivity test is accurate by the signaling comprehensive tester.
Therefore, the sensitivity degradation detection method provided by the embodiment of the application can accurately and rapidly detect the sensitivity degradation condition and has higher detection efficiency.
By adopting the technical scheme, the first noise power corresponding to the inherent noise signal of the terminal is detected; and a second noise power of the noise signal emitted by the inherent noise signal and the at least one interference source; therefore, based on the first noise power and the second noise power, the sensitivity degradation amount of the terminal is rapidly estimated, so that the single measurement time of the sensitivity degradation amount is reduced from a few tens of minutes to a few seconds, the measurement speed is greatly improved, the measurement time of the complete sensitivity degradation process is reduced, various sensitivity degradation problems can be rapidly found, and the development period of the terminal is shortened.
The embodiment of the application also provides a sensitivity degradation detection device, as shown in fig. 6, which includes:
an obtaining unit 601, configured to obtain, when a terminal receives a first noise signal, a first noise power corresponding to the first noise signal in a receiving channel of the terminal; the first noise signal is an inherent noise signal of the terminal;
the acquiring unit 601 is configured to acquire, when the terminal receives the first noise signal and the second noise signal, second noise powers corresponding to the first noise signal and the second noise signal in the terminal receiving channel; the second noise signal is a noise signal sent by at least one signal interference source;
a processing unit 602, configured to determine an amount of sensitivity degradation of the terminal based on the first noise power and the second noise power.
In some embodiments, the processing unit 602 is configured to determine a signal-to-noise ratio required for demodulation by the terminal based on the sensitivity, noise figure, and channel bandwidth of the terminal; the sensitivity deterioration amount is determined based on the first noise power, the second noise power, and a signal-to-noise ratio required for the terminal demodulation.
In some embodiments, the processing unit 602 is specifically configured to calculate a difference between the second noise power and the first noise power, to obtain a noise power difference; calculating the sensitivity degradation amount based on the noise power difference value and the signal to noise ratio required by the terminal demodulation;
alternatively, the processing unit 602 is specifically configured to determine the first sensitivity of the terminal based on the signal-to-noise ratio required for demodulation of the terminal and the first noise power; determining a second sensitivity of the terminal based on the signal-to-noise ratio required for demodulation by the terminal and the second noise power; and calculating the difference between the second sensitivity and the first sensitivity to obtain the sensitivity degradation amount.
In some embodiments, the processing unit 602 is specifically configured to calculate a difference between the second noise power and the first noise power when the signal-to-noise ratio required for the terminal demodulation is 0, and determine a target noise power corresponding to the second noise signal; and taking the target noise power as the sensitivity degradation amount of the terminal.
In some embodiments, the receiving port of the terminal is connected to a power measurement device;
the acquiring unit 601 is specifically configured to acquire the first noise power detected by the power measurement device; and acquiring the second noise power detected by the power measuring device.
In some embodiments, the processing unit 602 is configured to adjust a measurement center frequency of the power measurement device to a center frequency of the terminal receiving channel before detecting the first noise power.
By adopting the technical scheme, the first noise power corresponding to the inherent noise signal of the terminal is detected; and a second noise power of the noise signal emitted by the inherent noise signal and the at least one interference source; therefore, based on the first noise power and the second noise power, the sensitivity degradation amount of the terminal is rapidly estimated, so that the single measurement time of the sensitivity degradation amount is reduced from a few tens of minutes to a few seconds, the measurement speed is greatly improved, the measurement time of the complete sensitivity degradation process is reduced, various sensitivity degradation problems can be rapidly found, and the development period of the terminal is shortened.
The embodiment of the application also provides another sensitivity degradation detection device, as shown in fig. 7, which includes: a processor 701 and a memory 702 configured to store a computer program capable of running on the processor; the computer program when executed by a processor performs the steps of:
when the second noise signal is received, obtaining second noise power corresponding to the first noise signal and the second noise signal in the terminal receiving channel; the second noise signal is a noise signal sent by at least one signal interference source;
an amount of sensitivity deterioration of the terminal is determined based on the first noise power and the second noise power.
In some embodiments, the computer program when executed by a processor performs the steps of: determining a signal to noise ratio required by the terminal demodulation based on the sensitivity, noise coefficient and channel bandwidth of the terminal; the sensitivity deterioration amount is determined based on the first noise power, the second noise power, and a signal-to-noise ratio required for the terminal demodulation.
In some embodiments, the computer program when executed by a processor performs the steps of: calculating the difference between the second noise power and the first noise power to obtain a noise power difference; calculating the sensitivity degradation amount based on the noise power difference value and the signal to noise ratio required by the terminal demodulation;
or determining a first sensitivity of the terminal based on the signal-to-noise ratio required for demodulation of the terminal and the first noise power; determining a second sensitivity of the terminal based on the signal-to-noise ratio required for demodulation by the terminal and the second noise power; and calculating the difference between the second sensitivity and the first sensitivity to obtain the sensitivity degradation amount.
In some embodiments, the computer program when executed by a processor performs the steps of: when the signal to noise ratio required by the terminal demodulation is 0, calculating the difference between the second noise power and the first noise power, and determining the target noise power corresponding to the second noise signal; and taking the target noise power as the sensitivity degradation amount of the terminal.
In some embodiments, the receiving port of the terminal is connected to a power measurement device; the computer program when executed by a processor performs the steps of: acquiring the first noise power detected by the power measuring device; the obtaining the second noise power corresponding to the first noise signal and the second noise signal in the terminal receiving channel includes: and acquiring the second noise power detected by the power measuring device.
In some embodiments, the computer program when executed by a processor performs the steps of: and before the first noise power is detected, adjusting the measurement center frequency of the power measurement device to the center frequency of the terminal receiving channel.
Of course, in actual practice, the various components of the device would be coupled together via a bus system 703, as shown in FIG. 7. It is appreciated that the bus system 703 is employed to facilitate connected communications between the components. The bus system 703 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 703 in fig. 7.
The present application also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method according to any of the above embodiments.
In practical applications, the processor may be at least one of an application specific integrated circuit (ASIC, application Specific Integrated Circuit), a digital signal processing device (DSPD, digital Signal Processing Device), a programmable logic device (PLD, programmable Logic Device), a Field-programmable gate array (Field-Programmable Gate Array, FPGA), a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic device for implementing the above-mentioned processor function may be other for different apparatuses, and embodiments of the present application are not specifically limited.
The Memory may be a volatile Memory (RAM) such as Random-Access Memory; or a nonvolatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (HDD) or a Solid State Drive (SSD); or a combination of the above types of memories and provide instructions and data to the processor.
It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.
The methods disclosed in the several method embodiments provided in the present application may be arbitrarily combined without collision to obtain a new method embodiment.
The features disclosed in the several product embodiments provided in the present application may be combined arbitrarily without conflict to obtain new product embodiments.
The features disclosed in the several method or apparatus embodiments provided in the present application may be arbitrarily combined without conflict to obtain new method embodiments or apparatus embodiments.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for detecting sensitivity deterioration, the method comprising:
when a terminal receives a first noise signal, acquiring first noise power corresponding to the first noise signal in a terminal receiving channel; the first noise signal is an inherent noise signal of the terminal;
when the terminal receives the first noise signal and the second noise signal, acquiring second noise power corresponding to the first noise signal and the second noise signal in a terminal receiving channel; the second noise signal is a noise signal sent by at least one signal interference source;
and determining the sensitivity degradation amount of the terminal based on the first noise power, the second noise power and the signal-to-noise ratio required by the terminal for demodulation.
2. The method according to claim 1, wherein the method further comprises:
and determining the signal to noise ratio required by the terminal demodulation based on the sensitivity, the noise coefficient and the channel bandwidth of the terminal.
3. The method of claim 2, wherein the determining the amount of sensitivity degradation of the terminal comprises:
calculating the difference between the second noise power and the first noise power to obtain a noise power difference; calculating the sensitivity degradation amount based on the noise power difference value and the signal to noise ratio required by the terminal demodulation;
or determining a first sensitivity of the terminal based on the signal-to-noise ratio required for demodulation of the terminal and the first noise power; determining a second sensitivity of the terminal based on the signal-to-noise ratio required for demodulation by the terminal and the second noise power; and calculating the difference between the second sensitivity and the first sensitivity to obtain the sensitivity degradation amount.
4. A method according to claim 3, wherein said determining the amount of sensitivity degradation of the terminal when the signal-to-noise ratio required for demodulation by the terminal is 0 comprises:
calculating a difference value between the second noise power and the first noise power, and determining a target noise power corresponding to the second noise signal;
and taking the target noise power as the sensitivity degradation amount of the terminal.
5. The method according to any of claims 1 to 4, wherein the receiving port of the terminal is connected to a power measuring device;
the obtaining the first noise power corresponding to the first noise signal in the terminal receiving channel includes: acquiring the first noise power detected by the power measuring device;
the obtaining the second noise power corresponding to the first noise signal and the second noise signal in the terminal receiving channel includes: and acquiring the second noise power detected by the power measuring device.
6. The method of claim 5, wherein prior to detecting the first noise power, the method further comprises:
and adjusting the measurement center frequency of the power measurement device to the center frequency of the terminal receiving channel.
7. A sensitivity deterioration detecting apparatus, characterized by comprising:
the acquisition unit is used for acquiring first noise power corresponding to the first noise signal in a terminal receiving channel when the terminal receives the first noise signal; the first noise signal is an inherent noise signal of the terminal;
the acquiring unit is configured to acquire, when the terminal receives the first noise signal and the second noise signal, second noise power corresponding to the first noise signal and the second noise signal in the terminal receiving channel; the second noise signal is a noise signal sent by at least one signal interference source;
and the processing unit is used for determining the sensitivity degradation amount of the terminal based on the first noise power, the second noise power and the signal to noise ratio required by the terminal demodulation.
8. The apparatus of claim 7, wherein the processing unit is configured to determine a signal-to-noise ratio required for demodulation by the terminal based on a sensitivity, a noise figure, and a channel bandwidth of the terminal.
9. A sensitivity deterioration detecting apparatus, the apparatus comprising: a processor and a memory configured to store a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the method of any of claims 1 to 6 when the computer program is run.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149868.7A CN112825534B (en) | 2019-11-21 | 2019-11-21 | Sensitivity deterioration detection method, device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149868.7A CN112825534B (en) | 2019-11-21 | 2019-11-21 | Sensitivity deterioration detection method, device and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112825534A CN112825534A (en) | 2021-05-21 |
| CN112825534B true CN112825534B (en) | 2023-06-23 |
Family
ID=75907357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911149868.7A Active CN112825534B (en) | 2019-11-21 | 2019-11-21 | Sensitivity deterioration detection method, device and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112825534B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983922A (en) * | 2012-11-29 | 2013-03-20 | 华为技术有限公司 | Method for measuring co-channel signal interference and receiver |
| JP2016136714A (en) * | 2015-01-16 | 2016-07-28 | 国立大学法人信州大学 | Radio communication using state measuring method |
| CN106130672A (en) * | 2016-06-01 | 2016-11-16 | 乐视控股（北京）有限公司 | Interference detection method and device |
| CN106162722A (en) * | 2015-03-27 | 2016-11-23 | 中国移动通信集团公司 | A kind of interference method for rapidly testing and system mutually |
-
2019
- 2019-11-21 CN CN201911149868.7A patent/CN112825534B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983922A (en) * | 2012-11-29 | 2013-03-20 | 华为技术有限公司 | Method for measuring co-channel signal interference and receiver |
| JP2016136714A (en) * | 2015-01-16 | 2016-07-28 | 国立大学法人信州大学 | Radio communication using state measuring method |
| CN106162722A (en) * | 2015-03-27 | 2016-11-23 | 中国移动通信集团公司 | A kind of interference method for rapidly testing and system mutually |
| CN106130672A (en) * | 2016-06-01 | 2016-11-16 | 乐视控股（北京）有限公司 | Interference detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112825534A (en) | 2021-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107250830B (en) | Method, device and system for positioning | |
| TW589834B (en) | Intelligent control system and method for compensation application in a wireless communications system | |
| Li et al. | A passive WiFi source localization system based on fine-grained power-based trilateration | |
| US11018915B2 (en) | Wireless analysis device and wireless analysis method | |
| EP3672185A1 (en) | Identifying potentially manipulated radio signals and/or radio signal parameters | |
| KR20100075682A (en) | Embedded module receiver noise profiling | |
| US8976889B2 (en) | Wireless wide area network test method and test system | |
| US9893828B2 (en) | Signal power/quality measurement from digital RF/IF interface | |
| US11070398B2 (en) | Electronic device supporting multi-band wireless communications and method of controlling same | |
| CN112187576B (en) | Automatic router test system, method, device and computer equipment | |
| Giovanelli et al. | Rssi or time-of-flight for bluetooth low energy based localization? an experimental evaluation | |
| CN110636516B (en) | Method and device for determining signal propagation model | |
| CN103947138A (en) | Radio interference testing for multi radio devices | |
| US8519884B2 (en) | Distance estimation | |
| CN113014337B (en) | Communication terminal test method and device, storage medium, control terminal and test system | |
| Minucci et al. | Measuring 5G electric fields strength with software defined radios | |
| CN112825534B (en) | Sensitivity deterioration detection method, device and storage medium | |
| EP3503438B1 (en) | Test arrangement and test method | |
| Gambi et al. | A WKNN-based approach for NB-IoT sensors localization | |
| CN108307421B (en) | Measuring method of wireless terminal, computer readable storage medium, device and system | |
| Pu et al. | Analysis of path loss exponent error in ranging and localization of wireless sensor network | |
| BR112017020558B1 (en) | METHOD, DEVICE AND DEVICE TO OBTAIN ARRIVAL TIME WHEN A MOBILE TERMINAL IS LOCATED | |
| CN108718223A (en) | A kind of blind frequency spectrum sensing method of non-co-operation signal | |
| KR100646117B1 (en) | Detecting method and apparatus of a minute oscillation, and a wibro repeater therewith | |
| Shi | Improving the performance of RSS detection using wireless open-source platforms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |