CN117596628A - Self-interference frequency determining method and system for wireless communication terminal - Google Patents
Self-interference frequency determining method and system for wireless communication terminal Download PDFInfo
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- 238000005457 optimization Methods 0.000 claims abstract description 11
- 238000001228 spectrum Methods 0.000 claims description 5
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- 238000010295 mobile communication Methods 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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Abstract
The invention provides a method and a system for determining self-interference frequency of a wireless communication terminal, comprising the following steps: the testing equipment determines the frequency points to be tested of each frequency band of the terminal to be tested; and carrying out communication detection on each frequency point to be detected of each frequency band of the terminal to be detected in sequence to obtain an interference frequency range of at least one frequency band and a corresponding optimization scheme. The method and the device determine the frequency points to be detected of each frequency band of the terminal to be detected, acquire the current communication detection data of each frequency point to be detected of the current frequency band in a communication detection mode, and further determine the interference frequency range of the current frequency band. The invention does not need to expand the frequency coverage range of the tuning scheme, only applies the tuning scheme to the marked interference frequency range, and avoids applying redundant tuning measures to other channels without problems.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and system for determining a self-interference frequency of a wireless communication terminal.
Background
In small-sized communication devices such as mobile phones, there is a problem in that the sensitivity of the main antenna above the mobile phone (on the handset side) is deteriorated. The main source of interference is Double Data Rate (DDR) frequency spurs leak through the earpiece, creating intermodulation components with the baseband frequency, which fall within the acceptance band, affecting sensitivity performance. After the scheme of communication module performance tuning is adopted, the conduction test performance is good, but when the whole machine is assembled for coupling test, the sensitivity scanning result data of a plurality of prototypes are found to be inconsistent. And after the prototypes are locked to work at the same DDR frequency, the tested prototypes are also different in interference degree and frequency range. By exchanging handsets and antennas, it is found that the interfered channel data produces a slight shift with handset and antenna performance. If the channels of the processing scheme are expanded, the channels which are possibly interfered are fully covered as much as possible. However, after covering a plurality of channels, the performance of the channel which is not problematic is slightly deteriorated by applying an unnecessary tuning measure. Moreover, poor consistency in printed circuit board (Printed Circuit Board, PCB) design can also lead to increased levels of DDR interference leakage, with more channels being disturbed. In the same way, the problem that the performance does not reach the standard can be solved by expanding the frequency coverage range of the tuning scheme, but the tuning scheme is required to be used for the whole frequency band, so that the overall performance is weakened.
Therefore, it is necessary to provide a method and a system for determining a self-interference frequency of a wireless communication terminal to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a self-interference frequency determining method and a self-interference frequency determining system for a wireless communication terminal, which are used for solving the problem that the existing frequency coverage range of a tuning scheme must be enlarged to meet the performance standard.
The invention provides a wireless communication terminal self-interference frequency determining method, which is applied to a frequency determining system, wherein the frequency determining system comprises the following steps: the frequency determining method comprises the following steps of:
the test equipment determines to-be-tested frequency points of each frequency band of the to-be-tested terminal;
and carrying out communication detection on each frequency point to be detected of each frequency band of the terminal to be detected in sequence to obtain an interference frequency range of at least one frequency band and a corresponding optimization scheme.
In a possible embodiment, when performing communication detection in a current frequency band, according to current communication detection data of each frequency point to be detected in the current frequency band of the terminal to be detected, judging whether the terminal to be detected meets a performance standard requirement in the current frequency band, if so, performing communication detection in a next frequency band, and if not, obtaining an interference frequency range in the current frequency band according to the current communication detection data of each frequency point to be detected in the current frequency band, and determining an optimization scheme of the interference frequency range in the current frequency band.
In a possible embodiment, after determining the tuning scheme of the interference frequency range of the current frequency band, the method further includes:
and applying a corresponding tuning scheme to the interference frequency range of the current frequency band, performing communication detection again, judging whether the tuned terminal to be tested meets the performance standard requirement in the current frequency band, performing communication detection in the next frequency band if the tuned terminal to be tested meets the performance standard requirement, and judging that the terminal to be tested is a defective product if the tuned terminal does not meet the performance standard requirement.
In a possible embodiment, the determining, by the test device, a frequency point to be tested of each frequency band of the terminal to be tested includes:
and the test equipment determines and obtains the frequency points to be tested of each frequency band of the terminal to be tested according to the interference source frequency, the interference source frequency spectrum and the intermodulation frequency and by the part overlapped with the downlink frequency of the interfered frequency band.
In one possible embodiment, according to the current communication detection data of each to-be-detected frequency point of the to-be-detected terminal in the current frequency band, determining whether the to-be-detected terminal meets the performance standard requirement in the current frequency band further includes:
and the testing equipment sequentially carries out parameter configuration on the communication tester according to each frequency point to be tested in the current frequency band, so that the communication tester communicates with the terminal to be tested to obtain the current communication detection data of each frequency point to be tested in the current frequency band of the terminal to be tested.
In one possible embodiment, the communication tester communicates with the terminal to be tested to obtain current communication detection data of each frequency point to be tested of the terminal to be tested in the current frequency band, including:
the communication tester transmits downlink signals to the terminal to be tested according to the current preset signal strength and the preset signal-to-noise ratio, the terminal to be tested opens a receiving channel corresponding to the current frequency band to receive the downlink signals, and measures the actual signal strength and the actual signal-to-noise ratio of the downlink signals, so that the terminal to be tested can measure the actual signal strength and the actual signal-to-noise ratio of each frequency point to be tested of the current frequency band.
In one possible embodiment, determining whether the terminal to be tested meets the performance standard requirement according to the current communication detection data of each frequency point to be tested of the terminal to be tested in the current frequency band includes:
the test equipment compares the actual signal intensity of each frequency point to be tested in the current frequency band with the corresponding preset signal intensity, compares the actual signal-to-noise ratio of each frequency point to be tested in the current frequency band with the corresponding preset signal-to-noise ratio, and judges whether the terminal to be tested meets the performance standard requirement according to the comparison result.
In one possible embodiment, determining the interference frequency range of the current frequency band according to the current communication detection data of each frequency point to be detected of the current frequency band includes:
determining a frequency point to be detected meeting an interference condition in a current frequency band as an interference frequency point of the current frequency band, wherein the interference condition comprises that the difference value between the actual signal strength and the corresponding preset signal strength exceeds a first set threshold value and/or the difference value between the actual signal to noise ratio and the corresponding preset signal to noise ratio exceeds a second set threshold value;
and obtaining the interference frequency range of the current frequency band according to all the interference frequency points of the current frequency band.
In one possible embodiment, after obtaining the interference frequency point, the interference frequency point and the corresponding tuning scheme are stored in the terminal to be tested, where the interference frequency point is used to call the tuning scheme corresponding to the interference frequency point when the terminal to be tested works on the corresponding channel.
The invention also provides a system for determining the self-interference frequency of the wireless communication terminal, which is characterized in that the system for determining the self-interference frequency of the wireless communication terminal comprises: test equipment, a terminal to be tested and a communication tester;
the test equipment is used for determining the frequency points to be tested of each frequency band of the terminal to be tested;
the terminal to be tested is used for configuring the communication tester in sequence so as to carry out communication detection on each frequency point to be tested of each frequency band of the terminal to be tested, and an interference frequency range of at least one frequency band and a corresponding optimization scheme are obtained.
The invention has the beneficial effects that: determining the frequency points to be detected of each frequency band of the terminal to be detected, and acquiring current communication detection data of each frequency point to be detected of the current frequency band in a communication detection mode, so as to determine the interference frequency range of the current frequency band. The invention does not need to expand the frequency coverage range of the tuning scheme, only applies the tuning scheme to the marked interference frequency range, and avoids applying redundant tuning measures to other channels without problems.
Drawings
Fig. 1 is a flow chart of a method for determining a self-interference frequency of a wireless communication terminal according to the present invention.
Fig. 2 is a flow chart of a wireless communication terminal self-interference frequency determination system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a wireless communication terminal self-interference frequency determining system according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In designing a handheld communication terminal and performing board-level debugging, we have to conduct the test and debugging, one of the key tasks is to detect the reception sensitivity performance of the supported communication band. Tests can be performed in extreme scenarios according to design experience or according to requirements of a communication protocol to ensure good in-band reception sensitivity performance for each frequency band. To achieve this goal, we have to debug the sensitivity performance in extreme scenarios, and in addition to optimizing the loss of board-level lines, the effect of the communication module itself and other modules on the interference signals of the communication module must be considered. These interfering signals are a direct facing problem in the development of an integrated product. However, there may be a difference between the board level tuning and the final state of the product due to differences in manufacturing consistency of the modules, such as PCB boards, chips and their packages, shields, peripheral modules, antennas, etc. These additional risks are introduced by the manufacturing links of the components, each produced at a different factory standard, but are combined to often leave some problems of electromagnetic compatibility that have to be remedied.
These interference phenomena are not fully reflected in a few devices, and the development process which is easy to implement is to independently tune a small number of devices, and apply the scheme to all devices, which cannot ensure that the mass-produced devices are in an optimal state. The disadvantage of solutions covering all possible interference frequency points is evident, they tend to create the problem of unnecessary additional consumption of digital and analog modules, and even possibly deteriorating the overall performance of the communication module, only achieving a compromise.
In view of the foregoing problems with the prior art, an embodiment of the present invention provides a method for determining a self-interference frequency of a wireless communication terminal, which is applied to a frequency determining system, where the frequency determining system includes: test equipment, a terminal to be tested and a communication tester, referring to fig. 1, the frequency determining method comprises the following steps:
step S101: the test equipment determines the frequency points to be tested of each frequency band of the terminal to be tested, wherein each frequency band has at least one frequency point to be tested.
Specifically, the terminal to be tested realizes different wireless communication functions by using different frequency ranges. For example, global system for mobile communications (Global System for Mobile Communications, GSM) 900MHz and GSM 1800MHz of a mobile terminal are frequency bands used by the second generation mobile communication system (2G), universal mobile communication system (Universal Mobile Telecommunications System, UMTS) and Long Term Evolution (LTE) are frequency bands used by the third and fourth generation mobile communication systems (3G and 4G), and 5G is a frequency band used by the latest generation mobile communication system. In addition, there are many other wireless communication protocols and standards that use frequency bands such as Wi-Fi (2.4 GHz and 5 GHz), bluetooth (2.4 GHz), near field communication technology (Near Field Communication, NFC) (13.56 MHz), etc. Each frequency band has its specific propagation characteristics, coverage and capacity limitations, so that it is necessary to select the appropriate frequency band according to different applications and requirements.
Step S102: and carrying out communication detection on each frequency point to be detected of each frequency band of the terminal to be detected in sequence to obtain an interference frequency range of at least one frequency band and a corresponding optimization scheme.
In a preferred embodiment, when the communication detection of the current frequency band is performed, according to the current communication detection data of each frequency point to be detected of the terminal to be detected in the current frequency band, whether the terminal to be detected meets the performance standard requirement in the current frequency band is judged. If the performance standard requirement is met, the next frequency band communication detection is carried out; and if the performance standard requirement is not met, obtaining the interference frequency range of the current frequency band according to the current communication detection data of each frequency point to be detected of the current frequency band, and determining a tuning scheme of the interference frequency range of the current frequency band.
In this embodiment, the test device determines the frequency points to be tested of each frequency band of the terminal to be tested, that is, determines channels (i.e., frequency points) where each frequency band may be interfered, and then performs communication detection for each frequency point to be tested, so as to determine whether each frequency point to be tested is an interference frequency point one by one, thereby obtaining an interference frequency range. According to the invention, the interference frequency coverage range is configured for each terminal to be tested in a targeted manner, and the corresponding tuning scheme is customized for each terminal to be tested, so that the application of a large-force tuning strategy can be effectively avoided, the overall performance of the terminal to be tested is improved, and the problem that the tuning scheme is customized for equipment possibly having problems by manpower is solved.
In a preferred embodiment, the test device determines a to-be-tested frequency point of each frequency band of the to-be-tested terminal, including: and the test equipment determines and obtains the frequency points to be tested of each frequency band of the terminal to be tested according to the interference source frequency, the interference source frequency spectrum and the intermodulation frequency and by the superposition part of the downlink frequency of the interfered frequency band. In other words, the frequency meeting the set condition in the interfered frequency band is determined as the frequency point to be tested of each frequency band of the terminal to be tested, the set condition includes that the frequency of the interference source is overlapped or the difference value between the frequency of the interference source and the frequency of the interference source meets the set value, and the value of the set value is smaller, so that the difference value between the frequency of the interference source and the set value can be understood as the frequency close to the frequency of the interference source in the interfered frequency band.
Specifically, according to the spectrum characteristics of the interference source, the bandwidth of the interfered frequency can be estimated, and the boundary range of the frequency points to be tested is clearly determined based on initial estimation, so that the number of the frequency points to be tested is effectively controlled, unnecessary frequency point tests are avoided, the test speed is improved, and the test efficiency is improved.
In a preferred embodiment, after determining the tuning scheme of the interference frequency range of the current frequency band, the method further includes: and applying a corresponding tuning scheme to the interference frequency range of the current frequency band, performing communication detection again, judging whether the tuned terminal to be tested meets the performance standard requirement in the current frequency band, performing communication detection of the next frequency band if the tuned terminal to be tested meets the performance standard requirement, and judging the terminal to be tested as a defective product if the tuned terminal does not meet the performance standard requirement. In this embodiment, a corresponding tuning scheme is applied to the interference frequency range of the current frequency band to check the effectiveness of the tuning scheme. And determining and storing an effective tuning scheme, and calling the tuning scheme corresponding to the interference frequency point when the terminal to be tested works on the interference channel.
In some specific embodiments, the tuning scheme may be to remove direct current, reduce gain, limit uplink power or other uplink signal optimizing measures, phase balance, frequency offset, etc. by adopting a phase inversion differential mode or a direct current offset compensation circuit.
In a specific embodiment, according to current communication detection data of each to-be-detected frequency point of the to-be-detected terminal in the current frequency band, before judging whether the to-be-detected terminal meets the performance standard requirement in the current frequency band, the method further includes: the testing equipment sequentially carries out parameter configuration on the communication tester according to each frequency point to be tested in the current frequency band, so that the communication tester communicates with the terminal to be tested, and current communication detection data of the terminal to be tested in each frequency point to be tested in the current frequency band is obtained.
In a preferred embodiment, the communication tester communicates with the terminal to be tested to obtain current communication detection data of each frequency point to be tested of the terminal to be tested in the current frequency band, including: the communication tester transmits downlink signals to the terminal to be tested according to the current preset signal intensity and the preset signal-to-noise ratio, the terminal to be tested opens a receiving channel corresponding to the current frequency band to receive the downlink signals, and measures the actual signal intensity and the actual signal-to-noise ratio of the downlink signals, so that the terminal to be tested can measure the actual signal intensity and the actual signal-to-noise ratio of each frequency point to be tested of the current frequency band. In this embodiment, the performance of the terminal to be tested at each frequency point to be tested in the current frequency band can be evaluated through communication interaction between the communication tester and the terminal to be tested.
After measuring the actual signal strength and the actual signal to noise ratio of each frequency point to be measured of the current frequency band, the terminal to be measured further comprises: and the terminal to be tested sends the actual signal strength and the actual signal-to-noise ratio of each frequency point to be tested in the current frequency band to the test equipment.
In a preferred embodiment, determining whether the terminal to be tested meets the performance standard requirement according to the current communication detection data of each frequency point to be tested of the terminal to be tested in the current frequency band includes: the testing equipment compares the actual signal intensity of each frequency point to be tested of the current frequency band with the corresponding preset signal intensity, compares the actual signal-to-noise ratio of each frequency point to be tested of the current frequency band with the corresponding preset signal-to-noise ratio, and judges whether the terminal to be tested meets the performance standard requirement according to the comparison result.
In a preferred embodiment, determining the interference frequency range of the current frequency band according to the current communication detection data of each frequency point to be detected of the current frequency band includes: and determining a frequency point to be detected meeting an interference condition in the current frequency band as an interference frequency point of the current frequency band, wherein the interference condition comprises that the difference value between the actual signal strength and the corresponding preset signal strength exceeds a first set threshold value and/or the difference value between the actual signal to noise ratio and the corresponding preset signal to noise ratio exceeds a second set threshold value. And obtaining the interference frequency range of the current frequency band according to all the interference frequency points of the current frequency band.
In this embodiment, based on the preset signal strength and the preset signal-to-noise ratio corresponding to the current frequency point to be detected, the actual signal strength and the actual signal-to-noise ratio of the current frequency point to be detected are compared to determine whether the current frequency point to be detected is an interference frequency point, so that the current frequency point to be interfered, namely the interference frequency point, can be screened out from all the frequency points to be detected in the current frequency band. And defining the interference frequency range of the current frequency band based on all the interference frequency points of the current frequency band.
In a specific embodiment, after the interference frequency point is obtained, the interference frequency point and the corresponding tuning scheme are stored in the terminal to be tested, and the interference frequency point is used for calling the tuning scheme corresponding to the interference frequency point when the terminal to be tested works on the corresponding channel.
The self-interference frequency determining method of the wireless communication terminal can test the self-interference level of the communication module of the terminal to be tested to automatically find an interference channel, and perform custom configuration optimization scheme aiming at each terminal to be tested to reduce the influence of interference. The invention can also test the interference level of other modules of the terminal to be tested on the communication module, detect the performance of the communication module under different working conditions, and judge the interference level to properly adjust the tuning scheme, namely, set different tuning schemes for different interference frequency ranges so as to achieve better performance. The invention can judge the interference level and apply the interference-reducing optimization scheme to the terminal to be tested so as to rapidly and accurately judge the performance of the terminal to be tested under the interference condition, and process the interference signal by applying proper frequency coverage so as to improve the overall performance of the terminal to be tested.
Referring to fig. 2, a flow of a wireless communication terminal self-interference frequency determining method is described in detail with reference to a specific embodiment.
Step S201: the test equipment configures a frequency point to be tested of an nth frequency band, a communication comprehensive tester transmits a downlink signal, a terminal to be tested starts a receiving channel of the frequency band, and the signal-to-noise ratio of the downlink signal is measured.
Step S202: and uploading the measured data to test equipment by the terminal to be tested, and comparing the data by the test equipment.
Step S203: judging whether the performance standard requirement is met; if yes, go to step S207; if not, the process proceeds to step S204.
Step S204: the terminal to be tested stores the interference frequency range data to which the tuning scheme needs to be applied.
Step S205: and applying a tuning scheme to the interference frequency range, and performing a second round of signal-to-noise ratio test on the frequency point to be tested.
Step S206: judging whether the performance standard requirement is met; if yes, go to step S207; if not, ending;
step S207: whether the current test frequency band is the last frequency band of the terminal to be tested; if yes, ending; if not, return to step S201.
In addition, the invention also provides a wireless communication terminal self-interference frequency determining system, referring to fig. 3, the frequency determining system comprises: test equipment 301, a terminal to be tested 302, and a communication tester 303; preferably, the communication tester is a communication comprehensive tester. Test equipment 301 for determining to-be-tested frequency points of each frequency band of to-be-tested terminal 302; the terminal 302 to be tested is configured with the communication tester 303 in sequence to perform communication detection on each frequency point to be tested of each frequency band of the terminal 302 to be tested, so as to obtain an interference frequency range of at least one frequency band and a corresponding tuning scheme. All relevant contents of each step related to the above method embodiment may be cited to the functional descriptions of the corresponding functional modules, which are not described herein.
In a preferred embodiment, when performing communication detection in a current frequency band, the to-be-detected terminal 302 determines whether the to-be-detected terminal 302 meets a performance standard requirement in the current frequency band according to current communication detection data of each to-be-detected frequency point of the to-be-detected terminal 302 in the current frequency band, if the to-be-detected terminal meets the performance standard requirement, the next frequency band communication detection is performed, and if the performance standard requirement is not met, an interference frequency range of the current frequency band is obtained according to the current communication detection data of each to-be-detected frequency point of the current frequency band, and an optimization scheme of the interference frequency range of the current frequency band is determined.
In a preferred embodiment, the test device 301 determines the frequency points to be tested of each frequency band of the terminal 302 to be tested, which is specifically configured to: and determining to-be-measured frequency points of each frequency band of the to-be-measured terminal 302 according to the interference source frequency, the interference source frequency spectrum and the intermodulation frequency and by the overlapping part of the downlink frequency of the interfered frequency band.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
While embodiments of the present invention have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention described herein is capable of other embodiments and of being practiced or of being carried out in various ways. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items.
Claims (10)
1. A wireless communication terminal self-interference frequency determining method, applied to a frequency determining system, the frequency determining system comprising: test equipment, terminal to be tested and communication tester, its characterized in that, the method includes:
the test equipment determines to-be-tested frequency points of each frequency band of the to-be-tested terminal;
and carrying out communication detection on each frequency point to be detected of each frequency band of the terminal to be detected in sequence to obtain at least one interference frequency range of the frequency band and a corresponding optimization scheme.
2. The method for determining the self-interference frequency of the wireless communication terminal according to claim 1, wherein when the communication detection of the current frequency band is performed, according to the current communication detection data of each frequency point to be detected of the terminal to be detected in the current frequency band, whether the terminal to be detected meets the performance standard requirement in the current frequency band is judged, if the performance standard requirement is met, the communication detection of the next frequency band is performed, and if the performance standard requirement is not met, the interference frequency range of the current frequency band is obtained according to the current communication detection data of each frequency point to be detected in the current frequency band, and the optimization scheme of the interference frequency range of the current frequency band is determined.
3. The method for determining a self-interference frequency of a wireless communication terminal according to claim 2, further comprising, after determining the tuning scheme of the interference frequency range of the current frequency band:
and applying a corresponding tuning scheme to the interference frequency range of the current frequency band, performing communication detection again, judging whether the tuned terminal to be tested meets the performance standard requirement in the current frequency band, performing communication detection in the next frequency band if the tuned terminal to be tested meets the performance standard requirement, and judging that the terminal to be tested is a defective product if the tuned terminal does not meet the performance standard requirement.
4. The method for determining the self-interference frequency of the wireless communication terminal according to claim 1, wherein the test device determines the frequency points to be tested of each frequency band of the terminal to be tested, comprising:
and the test equipment determines and obtains the frequency points to be tested of each frequency band of the terminal to be tested according to the interference source frequency, the interference source frequency spectrum and the intermodulation frequency and by the part overlapped with the downlink frequency of the interfered frequency band.
5. The method for determining a self-interference frequency of a wireless communication terminal according to any one of claims 1 to 4, wherein determining whether the terminal to be tested meets a performance standard requirement in a current frequency band according to current communication detection data of each frequency point to be tested of the terminal to be tested in the current frequency band, further comprises:
and the testing equipment sequentially carries out parameter configuration on the communication tester according to each frequency point to be tested in the current frequency band, so that the communication tester communicates with the terminal to be tested to obtain the current communication detection data of each frequency point to be tested in the current frequency band of the terminal to be tested.
6. The method for determining a self-interference frequency of a wireless communication terminal according to claim 5, wherein the communication tester communicates with the terminal to be tested to obtain current communication detection data of each frequency point to be tested of the terminal to be tested in a current frequency band, comprising:
the communication tester transmits downlink signals to the terminal to be tested according to the current preset signal strength and the preset signal-to-noise ratio, the terminal to be tested opens a receiving channel corresponding to the current frequency band to receive the downlink signals, and measures the actual signal strength and the actual signal-to-noise ratio of the downlink signals, so that the terminal to be tested can measure the actual signal strength and the actual signal-to-noise ratio of each frequency point to be tested of the current frequency band.
7. The method for determining the self-interference frequency of the wireless communication terminal according to claim 6, wherein determining whether the terminal to be tested meets the performance standard requirement according to the current communication detection data of each frequency point to be tested of the terminal to be tested in the current frequency band comprises:
the test equipment compares the actual signal intensity of each frequency point to be tested in the current frequency band with the corresponding preset signal intensity, compares the actual signal-to-noise ratio of each frequency point to be tested in the current frequency band with the corresponding preset signal-to-noise ratio, and judges whether the terminal to be tested meets the performance standard requirement according to the comparison result.
8. The method for determining the self-interference frequency of the wireless communication terminal according to claim 7, wherein determining the interference frequency range of the current frequency band according to the current communication detection data of each frequency point to be detected of the current frequency band comprises:
determining a frequency point to be detected meeting an interference condition in a current frequency band as an interference frequency point of the current frequency band, wherein the interference condition comprises that the difference value between the actual signal strength and the corresponding preset signal strength exceeds a first set threshold value and/or the difference value between the actual signal to noise ratio and the corresponding preset signal to noise ratio exceeds a second set threshold value;
and obtaining the interference frequency range of the current frequency band according to all the interference frequency points of the current frequency band.
9. The method for determining the self-interference frequency of the wireless communication terminal according to claim 8, wherein after the interference frequency point is obtained, the interference frequency point and the corresponding tuning scheme are stored in the terminal to be tested, and the interference frequency point is used for calling the tuning scheme corresponding to the interference frequency point when the terminal to be tested works in the corresponding channel.
10. A wireless communication terminal self-interference frequency determination system, the frequency determination system comprising: test equipment, a terminal to be tested and a communication tester;
the test equipment is used for determining the frequency points to be tested of each frequency band of the terminal to be tested;
the terminal to be tested is used for configuring the communication tester in sequence so as to carry out communication detection on each frequency point to be tested of each frequency band of the terminal to be tested, and at least one interference frequency range of the frequency band and a corresponding optimization scheme are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311583457.5A CN117596628A (en) | 2023-11-23 | 2023-11-23 | Self-interference frequency determining method and system for wireless communication terminal |
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