CN111212436A - Gain calibration method, device, computer equipment and storage medium - Google Patents
Gain calibration method, device, computer equipment and storage medium Download PDFInfo
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- CN111212436A CN111212436A CN201911337394.9A CN201911337394A CN111212436A CN 111212436 A CN111212436 A CN 111212436A CN 201911337394 A CN201911337394 A CN 201911337394A CN 111212436 A CN111212436 A CN 111212436A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
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- 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
Abstract
The application relates to a gain calibration method, a gain calibration device, computer equipment and a storage medium, wherein the calibration equipment controls a frequency source in the equipment to be tested to output a first dot frequency signal with preset power according to a working frequency band of a channel to be tested in the equipment to be tested; then, detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected; finally, adjusting the gain calibration adjustment value of the channel to be measured according to the output power until the output power value is within the preset power range; by adopting the method, the calibration accuracy can be improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a gain calibration method and apparatus, a computer device, and a storage medium.
Background
A Remote Radio Unit (RRU Unit for short) is an important component of a wireless communication base station, and mainly implements frequency conversion and amplification of a baseband signal, and then sends the baseband signal to a terminal device, receives a Radio signal sent by the terminal device, processes and converts the Radio signal, and transmits the Radio signal to the baseband device. Before the RRU unit leaves the factory, the gain of the RRU unit needs to be calibrated to make the gain of the RRU unit within a preset range.
In the conventional technology, a calibration system of an RRU unit includes a baseband unit and a power detection device, and mainly sends a baseband signal to the RRU unit through the baseband unit, and then detects the power of a radio frequency signal output by the RRU unit through the power detection device to obtain a forward gain of the RRU unit, and adjusts the forward gain to a preset range by adjusting the attenuation of an attenuator in the RRU unit, thereby completing gain calibration.
However, with the above method, the calibration system of the RRU unit is complex, and especially when the RRU unit includes channels of different communication systems, the calibration system needs to include a baseband unit of multiple systems, which causes a large error introduced by the system and affects calibration accuracy.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a gain calibration method, apparatus, computer device and storage medium.
A method of gain scaling, said method comprising:
controlling a frequency source inside the device to be tested to output a first dot frequency signal with preset power according to the working frequency range of a channel to be tested in the device to be tested;
detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected;
and adjusting the gain scaling adjustment value of the channel to be measured according to the output power value until the output power value is within a preset power range.
In one embodiment, the controlling, according to the working frequency band of the channel to be tested in the device to be tested, the frequency source inside the device to be tested to output the first dot frequency signal with the preset power includes:
after a calibration instruction corresponding to a channel to be tested is obtained, controlling the channel to be tested to be opened;
and controlling the frequency source to output a first dot frequency signal with preset power corresponding to the working frequency band of the channel to be tested.
In one embodiment, the scaling instruction is determined by a timing scaling signal.
In one embodiment, the detecting, by the power detection device, the output power value of the second dot frequency signal includes:
when the timing scaling signal indicates that the channel to be measured is scaled, reading the output power value of the second dot frequency signal; the second dot frequency signal enters the power detection equipment through the multi-channel coupling attenuator; the input end of the multi-channel coupling attenuator is respectively connected with a plurality of channels to be tested.
In one embodiment, the gain scaling adjustment value is used for adjusting a first attenuation value of an analog attenuator in a channel to be measured; adjusting the gain calibration adjustment value of the channel to be measured, comprising:
further adjusting the gain scaling adjustment value according to a preset first step;
or the like, or, alternatively,
and selecting a first adjustment value corresponding to the first difference value according to the first difference value of the output power value and a preset output power value in the power range, and adjusting the gain scaling adjustment value according to the first adjustment value.
In one embodiment, the method further includes:
acquiring a feedback power value acquired by a feedback power acquisition unit in equipment to be tested; the feedback power value is obtained according to the coupling forward power of the feedback channel of the equipment to be tested;
and adjusting the feedback gain calibration adjustment value of the equipment to be tested according to the feedback power value until a second difference value between the feedback power value and the output power value is within a preset difference value range.
In one embodiment, the feedback gain scaling adjustment value is used to adjust a second attenuation value of an analog attenuator in the feedback path; adjusting a feedback gain calibration adjustment value of the device to be tested, comprising:
adjusting the feedback gain calibration adjustment value according to a preset second step;
or the like, or, alternatively,
and selecting a corresponding second adjustment amount according to the second difference, and adjusting the feedback gain scaling adjustment value according to the second adjustment amount.
A gain scaling apparatus, said apparatus comprising:
the control module is used for controlling a frequency source in the equipment to be tested to output a first point frequency signal with preset power according to the working frequency band of a channel to be tested in the equipment to be tested;
the detection module is used for detecting the output power value of the second dot frequency signal through the power detection equipment; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected;
and the adjusting module is used for adjusting the gain calibration adjusting value of the channel to be measured according to the output power value until the output power value is within the preset power range.
A computer device comprising a memory storing a computer program and a processor implementing the steps of the gain scaling method when executing the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the gain scaling method.
According to the gain calibration method, the gain calibration device, the computer equipment and the storage medium, the calibration equipment controls the frequency source in the equipment to be tested to output the first dot frequency signal with preset power according to the working frequency band of the channel to be tested in the equipment to be tested; then, detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected; and finally, adjusting the gain scaling adjustment value of the channel according to the output power until the output power value is within a preset power range. Because the calibration equipment controls the frequency source in the equipment to be tested to output the first point frequency signal, the external connection of other equipment is not needed to provide a test signal when the equipment to be tested is calibrated, the introduced error of a calibration system is reduced, and the calibration accuracy is improved.
Drawings
FIG. 1 is a diagram of an exemplary gain scaling method;
FIG. 2 is a flow diagram illustrating a method for gain scaling according to one embodiment;
FIG. 3 is a flow chart illustrating a gain scaling method in accordance with another embodiment;
FIG. 4 is a schematic diagram of a targeting system in one embodiment;
FIG. 5 is a flow chart illustrating a gain scaling method in accordance with another embodiment;
FIG. 5A is a block diagram illustrating the structure of a device under test in one embodiment;
FIG. 6 is a block diagram of a gain scaling apparatus in one embodiment;
FIG. 7 is a block diagram of a gain scaling apparatus in another embodiment;
FIG. 8 is a block diagram of a gain scaling apparatus in another embodiment;
FIG. 9 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The gain scaling method provided by the application can be applied to the application environment shown in fig. 1. The calibration device 100 is connected to the device to be tested 200 and the power detection device 300, the calibration device 100 may be, but is not limited to, various personal computers, notebook computers, tablet computers, and the like, and the device to be tested 200 may be a Remote Radio Unit (RRU Unit for short) in a wireless communication base station, a Radio Unit in a macro base station and a micro base station, or a Radio Unit in other communication systems, which is not limited herein. The power detection device 300 may be, but is not limited to, a power meter, a spectrometer, and the like.
In one embodiment, as shown in fig. 2, a gain scaling method is provided, which is described by taking the method as an example applied to the scaling apparatus in fig. 1, and includes:
s101, controlling a frequency source inside the device to be tested to output a first dot frequency signal with preset power according to the working frequency range of a channel to be tested in the device to be tested.
The device 200 to be tested may be a Remote radio unit (RRU unit for short) in a wireless communication base station, a radio unit in a macro base station and a micro base station, or a radio unit in other communication systems, which is not limited herein.
The channel in the device to be tested can comprise an up-conversion channel, a down-conversion channel, a radio frequency amplification channel and also can be a low-noise amplification channel; the rf channel may be a radio frequency channel, or may be a microwave channel, which is not limited herein.
The device to be tested can comprise one channel to be tested and also can comprise a plurality of channels to be tested; the channels to be tested may support the same communication system, and may also support different systems, which is not limited herein.
The frequency source refers to a basic signal source in the device to be tested, and the frequency source may be a fixed point frequency source or a synthesized frequency source, which is not limited herein. The fixed frequency point source can be a source which consists of a crystal oscillator and a frequency multiplier and is used for outputting a fixed frequency point signal; the frequency synthesis source can realize frequency synthesis by a frequency multiplier, a frequency divider, a frequency mixer and a microwave switch and output a signal with adjustable frequency; or a frequency synthesizer based on the phase-locked loop technology; the type of frequency source is not limited herein.
Specifically, the calibration device may determine the frequency of the first frequency point signal according to the working frequency band of the channel to be measured, may determine the first frequency point frequency according to the center frequency point of the working frequency band, and may also determine the first frequency point frequency according to other frequency points in the working frequency band, which is not limited herein.
For example, the calibration device may store a corresponding relationship between the channel to be measured and the frequency of the point frequency, and when the calibration device calibrates the channel to be measured, the corresponding first frequency point of the point frequency may be selected in the corresponding relationship according to the identifier or the working frequency band of the channel to be measured. For example, the working frequency band of the channel to be measured may be 2300MHz to 2400MHz, and in the correspondence, the frequency point corresponding to the frequency band may be 2350MHz or 2310 MHz.
The preset power can be determined according to the output capacity of the frequency source, or according to the gain range of the device to be tested, and then the attenuator in the frequency source circuit is adjusted, so that the frequency source outputs a fixed power value.
After determining the frequency and the output power of the first dot frequency signal, the calibration device may send an enable signal to the device to be tested, control an enable pin of the frequency source device, so that the frequency source outputs the first dot frequency signal, and may also switch a control switch of the frequency source through the control signal, which is not limited herein.
S102, detecting through power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected.
The power detection device may be a spectrometer, a power meter, or a device customized in a calibration system for detecting power, and the type of the power detection device is not limited herein.
The second dot frequency signal is obtained by converting the first dot frequency signal by the channel to be measured, and the conversion may be amplification or frequency conversion, which is not limited herein. For example, the channel to be detected comprises an up-conversion channel and an amplification channel, and after the frequency source outputs the first dot frequency signal, the signal is converted to the second dot frequency point and amplified to obtain the second dot frequency signal; if the channel to be measured only amplifies the signal, the frequency of the first dot frequency signal is the same as that of the second dot frequency signal.
Specifically, the scaling device may acquire the output power value after the power detection device detects the detection result of the second dot frequency signal by connecting with the power detection device.
The detection result may be an output power value of the second dot frequency signal obtained after the power detection device is calibrated, so that the calibration device can directly read the output power value; in addition, the detection result may be a power value of the output power of the second dot frequency signal after passing through the attenuator, and the scaling device calculates the output power value according to the attenuation amounts of the attenuator and the connection cable after reading the power value; the manner of obtaining the output power value is not limited herein.
Specifically, the scaling device may read the output power value once, or may read the output power value multiple times within a preset time duration, and then obtain an average value of the output power values.
S103, adjusting the gain scaling adjustment value of the channel to be measured according to the output power value until the output power value is within a preset power range.
The calibration device may determine a power range of the output power value corresponding to the channel to be measured according to a calibration target of the channel to be measured, for example, the calibration target of the channel to be measured is that a gain is 48dB to 58dB, and when the power of the first dot frequency signal is-50 dBm, the power range may be set to-2 dBm to 2 dBm.
The scaling device can adjust the gain scaling adjustment value of the channel to be measured, so that the output power value is in a preset power range. Specifically, the scaling device may adjust the gain scaling adjustment value by modifying the attenuation of the digital domain, and may also adjust the attenuation of an attenuator in the analog domain, such as a radio frequency attenuator or an intermediate frequency attenuator, which is not limited herein.
Optionally, the gain scaling adjustment value is used to adjust a first attenuation value of an analog attenuator in the channel to be measured; when the calibration equipment adjusts the gain calibration adjustment value of the channel to be measured, the gain calibration adjustment value can be further adjusted according to the preset first step; or, a first adjustment amount corresponding to the first difference value may be selected according to the first difference value between the output power value and a preset output power value in the power range, and the gain scaling adjustment value may be adjusted according to the first adjustment amount.
Further, the calibration device may write the value of the gain calibration adjustment value into the device to be tested after performing the adjustment once; or after the calibration is finished, writing the value of the gain calibration adjustment value into the device to be tested.
According to the gain calibration method, the calibration equipment controls the frequency source in the equipment to be tested to output a first point frequency signal with preset power according to the working frequency band of the channel to be tested in the equipment to be tested; then, detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected; and finally, adjusting the gain scaling adjustment value of the channel to be measured according to the output power until the output power value is within a preset power range. Because the calibration equipment controls the frequency source in the equipment to be tested to output the first point frequency signal, the external connection of other equipment is not needed to provide a test signal when the equipment to be tested is calibrated, the introduced error of a calibration system is reduced, and the calibration accuracy is improved.
Fig. 3 is a schematic flowchart of a gain scaling method in an embodiment, where the embodiment relates to a manner of outputting a first dot frequency signal by a computer device, and on the basis of the embodiment, as shown in fig. 3, the step S101 includes:
s201, after the calibration instruction corresponding to the channel to be tested is obtained, the channel to be tested is controlled to be opened.
The scaling device may determine when to scale the channel under test based on the scaling instructions. The calibration instruction may include an identifier of the channel to be measured, or may also include information such as a working frequency band of the channel to be measured, which is not limited herein.
The calibration instruction may be an instruction input by a user, for example, the user inputs the calibration instruction by clicking a control or inputting a code through an interface of the calibration control software.
Optionally, the scaling instruction may be determined by a timing scaling signal, for example, when the timing scaling signal is at a high level, the characterization may start scaling the channel to be measured; when the channel to be measured comprises a plurality of channels to be measured, the timing calibration signal can enable the calibration equipment to sequentially calibrate the plurality of channels to be measured; for example, the scaling device may determine the number of channels of the corresponding channel to be measured by the scaling signal, and for example, may scale the second channel by reading the channel 010 by the scaling signal.
After determining the channel to be tested, the calibration equipment can control the channel to be tested to be opened; specifically, the power enable signal of the channel to be tested may be controlled, or the control enable signal of the channel to be tested may be controlled, for example, to control the power switch corresponding to the channel to be tested to be turned on, or to control the device in the channel to be tested to be in a working state.
S202, controlling a frequency source to output a first dot frequency signal with preset power corresponding to the working frequency range of the channel to be tested.
After the channel to be tested is started, the calibration equipment can control the frequency source to output a first dot frequency signal with preset power corresponding to the working frequency band of the channel to be tested.
According to the gain calibration mode, the calibration equipment can control the opening of the channel to be measured through the calibration instruction, so that manual operation can be further reduced in the calibration process, and the calibration efficiency is improved.
In one embodiment, the device under test may include a plurality of channels under test, and the scaling device may read the output power value of the second dot frequency signal when the timing scaling signal indicates to scale the channels under test; the second dot frequency signal enters the power detection equipment through the multi-channel coupling attenuator; the input end of the multi-channel coupling attenuator is respectively connected with a plurality of channels to be tested.
As shown in fig. 4, in the drawing, 4 channels of the device to be tested are connected to 4 input ports of the multi-channel coupling attenuator through cables, an output port of the multi-channel coupling attenuator is connected to the power detection device, and the scaling device is connected to the device to be tested and the power detection device, respectively. When the timing scaling signal indicates to scale the first channel, the scaling device may obtain the output power value of the first channel through the power detection device, and then complete scaling of the first channel.
According to the gain calibration method, under the control of the timing calibration signal, the calibration equipment can directly read the output power value in the calibration time slot corresponding to the current channel to be measured, so that the channel to be measured corresponds to the output power value, and the calibration result error is avoided; furthermore, since the second dot frequency signal enters the power detection device through the multi-channel coupling attenuator, the calibration can be completed without switching between the power detection device and the channel to be detected, the calibration efficiency is improved, and the large calibration error caused by multiple connection is avoided.
Fig. 5 is a schematic flow chart of a gain scaling method in another embodiment, which relates to a way for a scaling device to perform feedback gain scaling, and based on the above embodiment, as shown in fig. 5, the method further includes:
s301, obtaining a feedback power value obtained by a feedback power acquisition unit in the equipment to be tested; the feedback power value is obtained according to the coupling forward power of the feedback channel of the device to be tested.
When the device to be tested comprises the forward channel and the feedback channel, the calibration equipment can also finish the calibration of the feedback channel after finishing the calibration of the forward channel.
The feedback channel may couple the output power of the forward channel through the coupler, amplify or attenuate the coupled signal, and detect the output power of the feedback channel through the feedback power acquisition unit, for example, convert the signal of the feedback channel into an analog signal through the power detection chip, and the device to be tested may calculate the feedback power value through the voltage value of the analog signal and send the feedback power value to the calibration device.
The feedback channel may be used for detecting output power of a device to be detected, and may also be used for providing an input reference for the digital predistortion unit, which is not limited herein.
S302, the feedback gain scaling adjustment value of the device to be tested is adjusted according to the feedback power value until a second difference value between the feedback power value and the output power value is within a preset difference value range.
After obtaining the feedback power value, the scaling device may adjust the feedback gain scaling adjustment value in the feedback channel according to the feedback power value until a second difference between the feedback power value and the output power value is within a preset difference range. The second difference is the gain value of the feedback channel.
Specifically, the feedback gain scaling adjustment value is used to adjust a second attenuation value of the analog attenuator in the feedback channel; when the calibration equipment adjusts the feedback gain calibration adjustment value of the equipment to be measured, the feedback gain calibration adjustment value can be further adjusted according to a preset second step; or selecting a corresponding second adjustment quantity according to the second difference value, and adjusting the feedback gain scaling adjustment value according to the second adjustment quantity.
As shown in fig. 5A, the device to be tested includes a forward channel and a feedback channel, where the forward channel is connected to the frequency source, amplifies the first dot frequency signal, and inputs the amplified first dot frequency signal to the power detection device; after the feedback channel couples the signals through the coupler, the signals are amplified, and then the feedback power value is obtained through the feedback power acquisition unit. The scaling device can adjust a first attenuation value of the analog attenuator in the forward channel to finish gain scaling of the forward channel; in addition, the second attenuation value of the analog attenuator in the feedback channel can be adjusted to complete the gain scaling of the feedback channel.
According to the gain calibration method, the calibration equipment completes the gain calibration of the forward channel and the gain calibration of the feedback channel of the equipment to be tested through one-time connection, and the calibration efficiency can be improved; furthermore, the scaling device scales the gain of the feedback channel, so that the digital predistortion unit can adjust the linearity of the power amplifier according to the feedback signal with proper power, which is beneficial to improving the linearity and efficiency of the power amplifier, and further reduces the energy consumption of the device in use.
It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 6, there is provided a gain scaling apparatus comprising: a control module 10, a detection module 20 and a first adjustment module 30, wherein:
the control module 10 is configured to control a frequency source inside the device to be tested to output a first dot frequency signal with preset power according to a working frequency band of a channel to be tested in the device to be tested;
the detection module 20 is configured to obtain an output power value of the second dot frequency signal through detection of a power detection device; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected;
the first adjusting module 30 is configured to adjust the gain scaling adjustment value of the channel to be measured according to the output power value until the output power value is within a preset power range.
The gain scaling device provided by the embodiment of the application can realize the method embodiment, the realization principle and the technical effect are similar, and the details are not repeated herein.
In one embodiment, as shown in fig. 7, on the basis of the above embodiment, the control module 10 includes:
the control unit 101 is configured to control the channel to be tested to be opened after the calibration instruction corresponding to the channel to be tested is obtained;
the output unit 102 is configured to control the frequency source to output a first dot frequency signal with a preset power corresponding to the working frequency band of the channel to be detected.
In an embodiment, on the basis of the above-described embodiment, the scaling instruction is determined by a timing scaling signal.
In an embodiment, on the basis of the above embodiment, the detection module 20 is specifically configured to: when the timing scaling signal indicates that the channel to be measured is scaled, reading the output power value of the second dot frequency signal; the second dot frequency signal enters the power detection equipment through the multi-channel coupling attenuator; the input end of the multi-channel coupling attenuator is respectively connected with a plurality of channels to be tested.
In one embodiment, on the basis of the above embodiment, the gain scaling adjustment value is used for adjusting a first attenuation value of the analog attenuator in the channel to be measured; the first adjusting module 30 is specifically configured to: further adjusting the gain scaling adjustment value according to a preset first step; or, according to a first difference between the output power value and a preset output power value in the power range, selecting a first adjustment value corresponding to the first difference, and adjusting the gain scaling adjustment value according to the first adjustment value.
In an embodiment, as shown in fig. 8, on the basis of the above embodiment, the apparatus further includes:
the obtaining module 40 is configured to obtain a feedback power value obtained by a feedback power collecting unit in the device to be tested; the feedback power value is obtained according to the coupling forward power of the feedback channel of the equipment to be tested;
the second adjusting module 50 is configured to adjust the feedback gain scaling adjustment value of the device to be tested according to the feedback power value until a second difference between the feedback power value and the output power value is within a preset difference range.
In an embodiment, the feedback gain scaling adjustment value is used to adjust a second attenuation value of the analog attenuator in the feedback channel, and on the basis of the above embodiment, the second adjusting module 50 is specifically configured to: adjusting the feedback gain calibration adjustment value according to a preset second step; or selecting a corresponding second adjustment quantity according to the second difference value, and adjusting the feedback gain scaling adjustment value according to the second adjustment quantity.
The gain scaling device provided by the embodiment of the application can realize the method embodiment, the realization principle and the technical effect are similar, and the details are not repeated herein.
For the specific definition of the gain scaling means, reference may be made to the above definition of the gain scaling method, which is not described herein again. The various modules in the gain scaling apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used to store gain scaling data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a gain scaling method.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
controlling a frequency source inside the device to be tested to output a first dot frequency signal with preset power according to the working frequency range of a channel to be tested in the device to be tested;
detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected;
and adjusting the gain scaling adjustment value of the channel to be measured according to the output power value until the output power value is within a preset power range.
In one embodiment, the processor, when executing the computer program, further performs the steps of: after a calibration instruction corresponding to a channel to be tested is obtained, controlling the channel to be tested to be opened; and controlling the frequency source to output a first dot frequency signal with preset power corresponding to the working frequency band of the channel to be tested.
In one embodiment, the scaling instruction is determined by a timing scaling signal.
In one embodiment, the processor, when executing the computer program, further performs the steps of: when the timing scaling signal indicates that the channel to be measured is scaled, reading the output power value of the second dot frequency signal; the second dot frequency signal enters the power detection equipment through the multi-channel coupling attenuator; the input end of the multi-channel coupling attenuator is respectively connected with a plurality of channels to be tested.
In one embodiment, the gain scaling adjustment value is used to adjust a first attenuation value of an analog attenuator in the channel under test; the processor, when executing the computer program, further performs the steps of: further adjusting the gain scaling adjustment value according to a preset first step; or, according to a first difference between the output power value and a preset output power value in the power range, selecting a first adjustment value corresponding to the first difference, and adjusting the gain scaling adjustment value according to the first adjustment value.
In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring a feedback power value acquired by a feedback power acquisition unit in equipment to be tested; the feedback power value is obtained according to the coupling forward power of the feedback channel of the equipment to be tested; and adjusting the feedback gain calibration adjustment value of the equipment to be tested according to the feedback power value until a second difference value between the feedback power value and the output power value is within a preset difference value range.
In one embodiment, the feedback gain scaling adjustment value is used to adjust a second attenuation value of an analog attenuator in the feedback path; the processor, when executing the computer program, further performs the steps of: adjusting the feedback gain calibration adjustment value according to a preset second step; or selecting a corresponding second adjustment quantity according to the second difference value, and adjusting the feedback gain scaling adjustment value according to the second adjustment quantity.
The implementation principle and technical effect of the computer device provided in this embodiment are similar to those of the method embodiments described above, and are not described herein again.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
controlling a frequency source inside the device to be tested to output a first dot frequency signal with preset power according to the working frequency range of a channel to be tested in the device to be tested;
detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the first dot frequency signal is converted by the channel to be detected;
and adjusting the gain scaling adjustment value of the channel to be measured according to the output power value until the output power value is within a preset power range.
In one embodiment, the computer program when executed by the processor further performs the steps of: after a calibration instruction corresponding to a channel to be tested is obtained, controlling the channel to be tested to be opened; and controlling the frequency source to output a first dot frequency signal with preset power corresponding to the working frequency band of the channel to be tested.
In one embodiment, the scaling instruction is determined by a timing scaling signal.
In one embodiment, the computer program when executed by the processor further performs the steps of: when the timing scaling signal indicates that the channel to be measured is scaled, reading the output power value of the second dot frequency signal; the second dot frequency signal enters the power detection equipment through the multi-channel coupling attenuator; the input end of the multi-channel coupling attenuator is respectively connected with a plurality of channels to be tested.
In one embodiment, the gain scaling adjustment value is used to adjust a first attenuation value of an analog attenuator in the channel under test; the computer program when executed by the processor further realizes the steps of: further adjusting the gain scaling adjustment value according to a preset first step; or, according to a first difference between the output power value and a preset output power value in the power range, selecting a first adjustment value corresponding to the first difference, and adjusting the gain scaling adjustment value according to the first adjustment value.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring a feedback power value acquired by a feedback power acquisition unit in equipment to be tested; the feedback power value is obtained according to the coupling forward power of the feedback channel of the equipment to be tested; and adjusting the feedback gain calibration adjustment value of the equipment to be tested according to the feedback power value until a second difference value between the feedback power value and the output power value is within a preset difference value range.
In one embodiment, the feedback gain scaling adjustment value is used to adjust a second attenuation value of an analog attenuator in the feedback path; the computer program when executed by the processor further realizes the steps of: adjusting the feedback gain calibration adjustment value according to a preset second step; or selecting a corresponding second adjustment quantity according to the second difference value, and adjusting the feedback gain scaling adjustment value according to the second adjustment quantity.
The implementation principle and technical effect of the computer-readable storage medium provided by this embodiment are similar to those of the above-described method embodiment, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), and direct bus dynamic RAM (DRDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of gain scaling, the method comprising:
controlling a frequency source inside the equipment to be tested to output a first point frequency signal with preset power according to the working frequency range of a channel to be tested in the equipment to be tested;
detecting by power detection equipment to obtain an output power value of the second dot frequency signal; the second dot frequency signal is obtained after the channel to be detected converts the first dot frequency signal;
and adjusting the gain scaling adjustment value of the channel to be measured according to the output power value until the output power value is within a preset power range.
2. The method for gain scaling according to claim 1, wherein the controlling a frequency source inside a device under test to output a first dot frequency signal with a preset power according to an operating frequency band of a channel under test in the device under test comprises:
after a calibration instruction corresponding to the channel to be tested is obtained, controlling the channel to be tested to be opened;
and controlling the frequency source to output a first dot frequency signal with preset power corresponding to the working frequency band of the channel to be tested.
3. The gain scaling method of claim 2, wherein the scaling instruction is determined by a timing scaling signal.
4. The gain scaling method according to claim 3, wherein the detecting the output power value of the second dot frequency signal by the power detecting device comprises:
when the timing scaling signal indicates that the channel to be measured is scaled, reading an output power value of the second dot frequency signal; the second dot frequency signal enters the power detection equipment through a multi-channel coupling attenuator; and the input end of the multi-channel coupling attenuator is respectively connected with the plurality of channels to be tested.
5. The gain calibration method according to claim 1, wherein the gain calibration adjustment value is used to adjust a first attenuation value of an analog attenuator in the channel under test; the adjusting the gain calibration adjustment value of the channel to be measured includes:
further adjusting the gain scaling adjustment value according to a preset first step;
or the like, or, alternatively,
and selecting a first adjustment value corresponding to the first difference value according to the first difference value between the output power value and a preset output power value in the power range, and adjusting the gain scaling adjustment value according to the first adjustment value.
6. The method for gain scaling according to any of claims 1-5, wherein the method further comprises:
acquiring a feedback power value acquired by a feedback power acquisition unit in the equipment to be tested; the feedback power value is obtained according to the coupling forward power of the feedback channel of the equipment to be tested;
and adjusting the feedback gain scaling adjustment value of the equipment to be tested according to the feedback power value until a second difference value between the feedback power value and the output power value is within a preset difference value range.
7. The gain scaling method of claim 6, wherein the feedback gain scaling adjustment value is used to adjust a second attenuation value of an analog attenuator in the feedback path; the adjusting the feedback gain calibration adjustment value of the device to be tested includes:
adjusting the feedback gain scaling adjustment value according to a preset second step;
or the like, or, alternatively,
and selecting a corresponding second adjustment quantity according to the second difference value, and adjusting the feedback gain scaling adjustment value according to the second adjustment quantity.
8. A gain scaling apparatus, characterized in that the apparatus comprises:
the control module is used for controlling a frequency source in the equipment to be tested to output a first point frequency signal with preset power according to the working frequency band of a channel to be tested in the equipment to be tested;
the detection module is used for detecting the output power value of the second dot frequency signal through the power detection equipment; the second dot frequency signal is obtained after the channel to be detected converts the first dot frequency signal;
and the adjusting module is used for adjusting the gain scaling adjusting value of the channel to be measured according to the output power value until the output power value is within a preset power range.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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