CN106712871B - Antenna performance optimization method and system - Google Patents
Antenna performance optimization method and system Download PDFInfo
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- CN106712871B CN106712871B CN201611264806.7A CN201611264806A CN106712871B CN 106712871 B CN106712871 B CN 106712871B CN 201611264806 A CN201611264806 A CN 201611264806A CN 106712871 B CN106712871 B CN 106712871B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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Abstract
An antenna performance optimization method, comprising: measuring radio frequency conduction power and emission power of a plurality of channels of a radio frequency conduction end and a coupling end of an antenna in the terminal equipment to be tested in a frequency band; calculating the power loss of each channel of the frequency band according to the radio frequency conduction power and the transmission power; calculating a compensation value of each channel according to the power loss of each channel; calculating the actual radio frequency conduction power of the radio frequency conduction end in each channel according to the compensation value of each channel; and transmitting the actual radio frequency conduction power of each channel to the terminal equipment to be tested so that the radio frequency conduction end of the terminal equipment to be tested conducts radio frequency according to the actual radio frequency conduction power of each channel. The invention also provides an antenna performance optimization system. The invention carries out calibration compensation on the radio frequency conduction end of the terminal equipment to be tested so as to achieve the aim of flat power of the same frequency band of the antenna coupling end.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to an antenna performance optimization method and an antenna performance optimization system.
Background
Due to the limitations of the structure and material (metal back shell) of the mobile phone, the debugging of the mobile phone antenna is increasingly difficult. Especially for a metal back shell mobile phone, due to the influence of metal, the antenna debugging difficulty is increased, the antenna efficiency under different frequencies is inconsistent, if the antenna efficiency of some frequencies is poor, the loss is too high, the transmission power is low, and the possibility that the frequency point call sound is interrupted or even dropped can occur.
The Total Radiation Power (TRP) index of the antenna does not meet the standard, and sometimes needs to be compensated by increasing the conducted radio frequency. For a high-pass platform, if the frequency band is the same, the power of the whole frequency band can be improved by modifying NV. If the channel is different in the same frequency band, the high-pass platform does not solve the algorithm for compensating the modification of different power by different channels in the same frequency band. If the power of the whole frequency band is increased, on one hand, the radio frequency current of the mobile phone is increased, and on the other hand, the radio frequency indexes of partial channels with better performance are possibly deteriorated.
Disclosure of Invention
In view of the above, there is a need to provide an antenna performance optimization method, which provides a calibration compensation measure for the rf transmission end to achieve the purpose of power flatness in the same frequency band at the antenna coupling end.
An antenna performance optimization method is applied to a test terminal and comprises the following steps:
measuring radio frequency conduction power of a plurality of channels of a radio frequency conduction end in a frequency band in terminal equipment to be tested and transmission power of a plurality of channels of a coupling end of an antenna of the terminal equipment to be tested in the frequency band, and acquiring the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
calculating the power loss of each channel of the frequency band according to the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
calculating a compensation value of each channel according to the power loss of each channel;
calculating the actual radio frequency conduction power of the radio frequency conduction end in each channel according to the compensation value of each channel; and
and transmitting the actual radio frequency conduction power of each channel to the terminal equipment to be tested so that the radio frequency conduction end of the terminal equipment to be tested conducts radio frequency according to the actual radio frequency conduction power of each channel.
In a preferred embodiment of the present invention, the power loss of each channel is obtained by subtracting the transmission power of the coupling end of the antenna from the radio frequency conduction power of the radio frequency conduction end in the channel.
In a preferred embodiment of the present invention, calculating the compensation value of each channel includes:
comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and
and calculating the compensation values of other channels according to the basic compensation value by the following formula:
base compensation value- (power loss of current channel-minimum power loss).
In a preferred embodiment of the present invention, the basic compensation value is 0.
In a preferred embodiment of the present invention, the actual radio frequency conducted power of each channel satisfies:
the original rf conduction power is the actual rf conduction power + the compensation value.
In view of the above, it is further necessary to provide an antenna performance optimization system, which provides a calibration compensation measure for the rf transmission end to achieve the purpose of power flatness in the same frequency band at the antenna coupling end.
An antenna performance optimization system applied to a test terminal comprises:
the frequency testing module is used for measuring the radio frequency conduction power of a plurality of channels of a radio frequency conduction end in a frequency band and the transmission power of a plurality of channels of a coupling end of an antenna of the terminal equipment to be tested in the frequency band, and acquiring the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
and the compensation processing module is used for calculating the power loss of each channel of the frequency band according to the radio frequency conduction power of the radio frequency conduction end and the transmitting power of the coupling end of the antenna, calculating a compensation value of each channel according to the power loss of each channel, calculating the actual radio frequency conduction power of the radio frequency conduction end in each channel according to the compensation value of each channel, and transmitting the actual radio frequency conduction power of each channel to the terminal equipment to be tested so that the radio frequency conduction end of the terminal equipment to be tested performs radio frequency conduction according to the actual radio frequency conduction power of each channel.
In a preferred embodiment of the present invention, the power loss of each channel is obtained by subtracting the transmission power of the coupling end of the antenna from the radio frequency conduction power of the radio frequency conduction end in the channel.
In a preferred embodiment of the present invention, calculating the compensation value of each channel includes:
comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and
and calculating the compensation values of other channels according to the basic compensation value by the following formula:
base compensation value- (power loss of current channel-minimum power loss).
In a preferred embodiment of the present invention, the basic compensation value is 0.
In a preferred embodiment of the present invention, the actual radio frequency conducted power of each channel satisfies:
the original rf conduction power is the actual rf conduction power + the compensation value.
The method and the system for optimizing the antenna performance balance the antenna efficiency by the calibration compensation measure of the radio frequency transmission end for the problem of inconsistent antenna efficiency under different channels of the same frequency band, and the aim of equalizing the antenna efficiency similar to an equalizer is fulfilled, so that the aim of flattening the power of the same frequency band at the antenna coupling end is fulfilled, and the problem that the communication sound is interrupted or even the communication is dropped due to poor antenna performance is solved.
Drawings
Fig. 1 is a schematic diagram illustrating an application environment of a preferred embodiment of the antenna performance optimization method according to the present invention.
Fig. 2 is a flowchart of a method for optimizing antenna performance according to a preferred embodiment of the present invention.
Fig. 3 is a block diagram of a preferred embodiment of the antenna performance optimization system of the present invention.
Fig. 4 is a structural diagram of a test terminal for performing the antenna performance optimization method according to the present invention.
Description of the main elements
Antenna performance optimization system 10
Radio frequency transmission terminal 20
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of an application environment of the antenna performance optimization method according to the preferred embodiment of the present invention.
In the preferred embodiment of the present invention, the antenna performance optimization method is executed by a test terminal 1, and is used for calibrating a terminal device 2 to be tested, so that when the transmission power (TRP) index of an antenna 21 of the terminal device 2 to be tested in the same frequency band does not meet the standard, for example, under the frequency and some poor channels, calibration compensation is executed at a radio frequency conducting terminal 20 of the terminal device 2 to be tested, so as to achieve the purpose that the coupling terminal of the antenna 21 is under the frequency band, the whole power is flat, and the phenomenon of call sound interruption and even call drop which may occur due to poor antenna performance is solved.
In the preferred embodiment of the present invention, the terminal device 2 to be tested may be, for example, a mobile phone, and the test terminal 1 may be a test server.
Fig. 2 is a flowchart of a method for optimizing antenna performance according to a preferred embodiment of the present invention.
The execution order in the flow chart shown in the figure may be changed and some may be omitted according to different needs.
S1, the test terminal 1 measures the radio frequency transmission powers of the multiple channels of the radio frequency transmission end 20 in the terminal device 2 to be tested in a frequency band, such as the GSM900 frequency band, and the transmission powers of the multiple channels of the coupling end of the antenna 21 in the frequency band by using a frequency measurement instrument.
In the preferred embodiment of the present invention, the plurality of channels may include three channels, i.e., high (975), medium (124), and low (62). In other preferred embodiments of the present invention, the channels may also include other channels, and are not limited to the above list.
For example, the radio frequency conducted power measured by the test terminal 1 at the radio frequency conducting terminal 20 is as follows:
further, the transmission power measured by the test terminal 1 at the coupling end of the antenna 21 is as follows:
s2, the test terminal 1 obtains the rf conduction power of the rf conduction terminal 20 and the transmission power of the coupling terminal of the antenna 21.
S3, the test terminal 1 calculates the power loss of each channel of the frequency band according to the acquired radio frequency transmission power of the radio frequency transmission terminal 20 and the transmission power of the coupling terminal of the antenna 21.
In the preferred embodiment of the present invention, the power loss of each channel is the radio frequency conduction power of the radio frequency conduction terminal 20 in the channel minus the transmission power of the coupling terminal of the antenna 21 in the channel.
In the above example, the power loss from the radio frequency conducting end 20 of the low, medium and high channels of the GSM900 band to the coupling end of the antenna 21 can be obtained as follows:
s4, the test terminal 1 calculates the compensation value of each channel according to the power loss of each channel.
In a preferred embodiment of the present invention, the test terminal 1 calculates the compensation value of each channel by the following method:
firstly, comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and
and calculating the compensation values of other channels according to the basic compensation value by the following formula:
base compensation value- (power loss of current channel-minimum power loss).
Therefore, in the above example, the compensation values for the respective channels are calculated as follows:
in the preferred embodiment of the present invention, the basic compensation value may be 0.
S5, the test terminal 1 calculates the actual rf conducted power of the rf conductive terminal 20 in each channel according to the compensation value of each channel.
In the preferred embodiment of the present invention, the target rf conducted power (i.e. the original rf conducted power) of the rf conducting terminal 20 is equal to the actual rf conducted power + the compensation value.
Thus, in the above example, the actual rf conducted power of the rf conductive terminal 20 can be calculated as follows:
s6, the test terminal 1 transmits the actual radio frequency conducted power of each channel to the terminal device 2 to be tested, so that the radio frequency conducted end 20 of the terminal device 2 to be tested performs radio frequency conduction according to the actual radio frequency conducted power of each channel, thereby improving the flatness of the actual transmission power of the coupling end of the antenna 21 of the terminal device 2 to be tested after the channel loss.
As in the above example, after performing the compensation, the actual rf conducted power at the coupling end of the antenna 21 is as follows:
fig. 2 is a block diagram of an antenna performance optimization system according to a preferred embodiment of the present invention.
The system 10 for optimizing antenna performance according to the present invention may include a plurality of program segments composed of computer program codes, and may be installed in the test terminal 1, and executed by the test terminal 1 to calibrate the terminal device 2 to be tested, so that when the index of Total Radiation Power (TRP) of the antenna 21 of the terminal device 2 to be tested in the same frequency band does not meet the standard, for example, under the condition of some poor channels at the frequency, calibration compensation is executed at the radio frequency conducting terminal 20 of the terminal device 2 to be tested, so as to achieve the purpose that the coupling terminal of the antenna 21 is in the frequency band, the whole power is flat, and the phenomenon of intermittent or even dropped call of the call sound which may occur due to poor antenna performance is solved.
Referring to fig. 2, the antenna performance optimization system 10 may be divided into a plurality of functional blocks according to the functions performed by the system. In a preferred embodiment of the present invention, the functional modules in the antenna performance optimization system 10 at least include: a frequency test module 100 and a compensation processing module 101.
The frequency testing module 100 is configured to measure, by using a frequency measuring instrument, radio frequency conduction powers of multiple channels of the radio frequency conduction terminal 20 in the terminal device 2 to be tested in a frequency band, such as a GSM900 frequency band, and transmission powers of multiple channels of the coupling terminal of the antenna 21 in the frequency band, and obtain the radio frequency conduction power of the radio frequency conduction terminal 20 and the transmission power of the coupling terminal of the antenna 21.
In the preferred embodiment of the present invention, the plurality of channels may include three channels, i.e., high (975), medium (124), and low (62). In other preferred embodiments of the present invention, the channels may also include other channels, and are not limited to the above list.
For example, the radio frequency conducted power measured by the test terminal 1 at the radio frequency conducting terminal 20 is as follows:
further, the transmission power measured by the test terminal 1 at the coupling end of the antenna 21 is as follows:
the compensation processing module 101 is configured to calculate power loss of each channel of the frequency band according to the acquired radio frequency conduction power of the radio frequency conduction terminal 20 and the transmission power of the coupling terminal of the antenna 21, calculate a compensation value of each channel according to the power loss of each channel, calculate actual radio frequency conduction power of the radio frequency conduction terminal 20 in each channel according to the compensation value of each channel, and transmit the actual radio frequency conduction power of each channel to the terminal device 2 to be tested, and perform radio frequency conduction by using the radio frequency conduction terminal 20 of the terminal device 2 to be tested according to the actual radio frequency conduction power of each channel, so that after the channel loss, flatness of the actual transmission power of the coupling terminal of the antenna 21 of the terminal device 2 to be tested is improved.
In the preferred embodiment of the present invention, the power loss of each channel is the radio frequency conduction power of the radio frequency conduction terminal 20 in the channel minus the transmission power of the coupling terminal of the antenna 21 in the channel.
In the above example, the power loss from the radio frequency conducting end 20 of the low, medium and high channels of the GSM900 band to the coupling end of the antenna 21 can be obtained as follows:
further, in a preferred embodiment of the present invention, the test terminal 1 calculates the compensation value of each channel by the following method:
firstly, comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and
and calculating the compensation values of other channels according to the basic compensation value by the following formula:
base compensation value- (power loss of current channel-minimum power loss).
Therefore, in the above example, the compensation values for the respective channels are calculated as follows:
in the preferred embodiment of the present invention, the basic compensation value may be 0.
Further, in the preferred embodiment of the present invention, the target rf conducted power (i.e. the original rf conducted power) of the rf conducting terminal 20 is equal to the actual rf conducted power + the compensation value.
Thus, in the above example, the actual rf conducted power of the rf conductive terminal 20 can be calculated as follows:
as in the above example, after performing the compensation, the actual rf conducted power at the coupling end of the antenna 21 is as follows:
fig. 3 is a structural diagram of a test terminal for executing the antenna performance optimization method according to the present invention.
The test terminal 1 of the present invention may be a test server, etc. and is configured to calibrate the terminal device 2 to be tested, so that when the transmit power (TRP) index of the antenna 21 of the terminal device 2 to be tested in the same frequency band does not reach the standard, and if some channels are poor under the frequency, calibration compensation is performed at the radio frequency conducting terminal 20 of the terminal device 2 to be tested, so as to achieve the purpose that the whole power of the coupling terminal of the antenna 21 is flat under the frequency band, and solve the phenomenon that the call sound is interrupted or even dropped due to poor antenna performance.
In the preferred embodiment of the present invention, the terminal device 2 to be tested may be, for example, a mobile phone.
In the embodiment of the present invention, the test terminal 1 includes, but is not limited to, at least one memory 11, at least one processor 12, a frequency tester 13, and a communication bus 14.
The communication bus 14 may enable communication between the memory 11, the processor 12 and the frequency tester 13.
The frequency tester 13 is configured to measure radio frequency conduction powers of a plurality of channels of the radio frequency conduction terminal 20 in the terminal device 2 to be tested in a frequency band, such as a GSM900 frequency band, and transmission powers of a plurality of channels of the coupling terminal of the antenna 21 in the frequency band.
The memory 11 stores program code. The memory 11 may be a storage device such as a smart media card (smart media card), a secure digital card (secure digital card), a flash memory card (flash card), or the like.
The processor 12 may execute an operating system of the test terminal 1, various installed application programs, and the like. The processor 12 may include one or more central processing units, microprocessors, digital processors, and the like.
In the preferred embodiment of the present invention, the processor 12 can call the program code stored in the memory 11 through the communication bus 14 to execute the related functions. For example, the various modules (e.g., the frequency test module 100 and the compensation processing module 101) illustrated in fig. 2 are program code stored in the memory 11 and executed by the processor 12 to implement an antenna performance optimization method.
Specifically, the antenna performance optimization method includes:
an antenna performance optimization method is applied to a test terminal and comprises the following steps:
measuring radio frequency conduction power of a plurality of channels of a radio frequency conduction end in a frequency band in terminal equipment to be tested and transmission power of a plurality of channels of a coupling end of an antenna of the terminal equipment to be tested in the frequency band, and acquiring the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
calculating the power loss of each channel of the frequency band according to the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
calculating a compensation value of each channel according to the power loss of each channel;
calculating the actual radio frequency conduction power of the radio frequency conduction end in each channel according to the compensation value of each channel; and
and transmitting the actual radio frequency conduction power of each channel to the terminal equipment to be tested so that the radio frequency conduction end of the terminal equipment to be tested conducts radio frequency according to the actual radio frequency conduction power of each channel.
In a preferred embodiment of the present invention, the power loss of each channel is obtained by subtracting the transmission power of the coupling end of the antenna from the radio frequency conduction power of the radio frequency conduction end in the channel.
In a preferred embodiment of the present invention, calculating the compensation value of each channel includes:
comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and
and calculating the compensation values of other channels according to the basic compensation value by the following formula:
base compensation value- (power loss of current channel-minimum power loss).
In a preferred embodiment of the present invention, the basic compensation value is 0.
In a preferred embodiment of the present invention, the actual radio frequency conducted power of each channel satisfies:
the original rf conduction power is the actual rf conduction power + the compensation value.
Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, where the one or more programs include instructions, which when executed by a test terminal 1 including one or more processors, cause the test terminal 1 to perform the virtual reality operation security protection method according to the above method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may also be implemented in a form of being distributed to a plurality of networks and software functional units.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. An antenna performance optimization method applied to a test terminal is characterized by comprising the following steps:
measuring radio frequency conduction power of a plurality of channels of a radio frequency conduction end in a frequency band in terminal equipment to be tested and transmission power of a plurality of channels of a coupling end of an antenna of the terminal equipment to be tested in the frequency band, and acquiring the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
calculating the power loss of each channel of the frequency band according to the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna, wherein the power loss of each channel is obtained by subtracting the transmission power of the coupling end of the antenna from the radio frequency conduction power of the radio frequency conduction end in the channel;
comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and according to the basic compensation value, calculating the compensation value of other channels by the following formula: base compensation value- (power loss of current channel-minimum power loss);
calculating the actual radio frequency conduction power of the radio frequency conduction end in each channel according to the compensation value of each channel; and
and transmitting the actual radio frequency conduction power of each channel to the terminal equipment to be tested so that the radio frequency conduction end of the terminal equipment to be tested conducts radio frequency according to the actual radio frequency conduction power of each channel.
2. The antenna performance optimization method of claim 1, wherein the base compensation value is 0.
3. The method for optimizing antenna performance according to claim 1, wherein the actual rf conducted power of each channel satisfies:
the original rf conduction power is the actual rf conduction power + the compensation value.
4. An antenna performance optimization system applied to a test terminal, the antenna performance optimization system comprising:
the frequency testing module is used for measuring the radio frequency conduction power of a plurality of channels of a radio frequency conduction end in a frequency band and the transmission power of a plurality of channels of a coupling end of an antenna of the terminal equipment to be tested in the frequency band, and acquiring the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna;
a compensation processing module, configured to calculate a power loss of each channel of the frequency band according to the radio frequency conduction power of the radio frequency conduction end and the transmission power of the coupling end of the antenna, where the power loss of each channel is obtained by subtracting the transmission power of the coupling end of the antenna from the radio frequency conduction power of the radio frequency conduction end of the channel; comparing the power loss of each channel, determining the channel with the minimum power loss, and setting the compensation value of the channel as a basic compensation value; and according to the basic compensation value, calculating the compensation value of other channels by the following formula: base compensation value- (power loss of current channel-minimum power loss); and calculating the actual radio frequency conduction power of the radio frequency conduction end in each channel according to the compensation value of each channel, and transmitting the actual radio frequency conduction power of each channel to the terminal equipment to be tested so that the radio frequency conduction end of the terminal equipment to be tested performs radio frequency conduction according to the actual radio frequency conduction power of each channel.
5. The antenna performance optimization system of claim 4, wherein the base compensation value is 0.
6. The antenna performance optimization system of claim 4, wherein the actual radio frequency conducted power for each channel satisfies:
the original rf conduction power is the actual rf conduction power + the compensation value.
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| CN111465029B (en) * | 2019-01-18 | 2023-06-23 | 中国移动通信有限公司研究院 | Dual-channel passive room subsystem and gain adjusting method thereof |
| CN110730044A (en) * | 2019-09-18 | 2020-01-24 | 深圳市艾特讯科技有限公司 | Radio frequency test channel positioning method and device, radio frequency test system and control terminal |
| CN113783638B (en) * | 2020-06-10 | 2024-03-12 | 抖音视界有限公司 | Communication assembly, signal calibration system and method thereof |
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