WO2014161279A1

WO2014161279A1 - Inner-loop power control method and system for terminal

Info

Publication number: WO2014161279A1
Application number: PCT/CN2013/084129
Authority: WO
Inventors: 牛慧
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-07-17
Filing date: 2013-09-24
Publication date: 2014-10-09
Also published as: CN104301978A

Abstract

Disclosed are an inner-loop power control method and system for a terminal. The method comprises: after calibrating at room temperature, a terminal collecting test data at each gain grade at different temperatures in sequence; according to the test data, determining a power compensation value of each power control abnormal point at different gain grades at different temperatures; and using the power compensation value to conduct corresponding compensation on the power of the power control abnormal point. The system comprises a collection unit, a processing unit and a compensation unit. By way of collecting test data of a terminal at each grade at different temperatures, and calculating and saving a power compensation value of a power control abnormal point needing to conduct power adjustment, when in use, the present invention compensates the terminal according to the power compensation value corresponding to a specific temperature and gain grade, thereby effectively ensuring the consistency of the inner-loop power control of the terminal.

Description

Method and system for terminal inner loop power control

The present invention relates to the field of communications technologies, and in particular, to a method and system for controlling inner loop power of a terminal. Background technique

In the current third-generation mobile communication technology, Wideband Code Division Multiple Access (WCDMA) technology uses wideband spread spectrum, all signals share the same spectrum, and the signal energy of each mobile terminal is allocated in the entire frequency band. And this becomes broadband noise for other mobile terminals. Therefore, while improving the quality of user service by improving the transmission power of the terminal, it may cause serious interference that affects the performance of other users. And because there are non-ideal correlation characteristics between the spreading codes of each terminal, the transmission power will directly affect the total capacity of the system. Therefore, it is necessary to effectively perform power control to ensure that the transmission power is minimized, the system interference is reduced, and the system capacity is increased under the premise of the quality of service required by the user.

In WCDMA power control technology, inner loop power control is one of the most demanding power control techniques. For the terminal itself, the current performance affecting the terminal power control performance is mainly the linear performance of the PA (Power Amplifier). The factors affecting the linear performance of PA are mainly as follows. First, when the PA is in the multi-gain mode, the output power near the PA gain switching point tends to exceed the linear range. Second, the gain of the PA is significantly affected by the temperature variation. Since the terminal works in a different temperature environment and the PA itself generates heat during operation, the influence of temperature factors is difficult to avoid. And precisely because of the sensitivity of the PA to temperature, the inner loop power control is also sensitive to temperature. Therefore, the power deviation caused by the PA gain switching and the operating temperature change will affect the power control, which in turn affects the user's service quality.

In the prior art, the power control error of the inner loop of the terminal introduced by factors such as device performance is improved, The calculation of the test and the adjustment amount are all done manually, and the manual control is affected by the considered factors, and the consistency of the inner loop power control of the terminal is not high. Summary of the invention

In view of the above analysis, the present invention is directed to a method and system for controlling the power of a terminal inner loop to ensure that the terminal has good consistency of inner loop power control.

The object of the present invention is mainly achieved by the following technical solutions:

A method for power control of a terminal inner loop, the method comprising:

After the terminal is calibrated at normal temperature, the test data of each gain level at different temperatures of the terminal is sequentially collected;

Determining a power compensation value of each power control abnormal point at different temperatures and different gain levels according to the test data, and performing corresponding compensation on the power of the power control abnormal point by using the power compensation value.

Preferably, the step of determining, according to the test data, the power compensation values of the respective power control abnormal points at different temperatures and different gain levels comprises:

Determining, according to the test data, temperature and gain levels corresponding to respective power control abnormal points at different temperatures and different gain levels, and determining to use the temperature compensation or power gain switching point to compensate power of the power control abnormal point and specific power compensation Value

Applying the obtained power compensation value to compensate power corresponding to the abnormal power control abnormal point of the terminal;

After the compensation, the power control abnormal point is re-tested and compensated until the measured power compensation value of the power control abnormal point is less than a preset power compensation threshold, and all the power compensation values are accumulated to obtain the The power compensation value of the power control abnormal point.

Preferably, the step of determining the power of the power control abnormal point using the temperature compensation or power gain switching point comprises:

When the power control abnormal point is reduced from the maximum transmission power by a prescribed step by one step to a minimum Appearing during the transmission of power, and occurs during the process of increasing the maximum transmission power from the minimum transmission power to the maximum power one by one, then using the temperature to compensate the power control abnormal point power, otherwise using the power gain switching point to compensate the said Power control the power of the abnormal point.

Preferably, the method further includes: testing a plurality of the terminals to obtain an average value of power compensation values of each power control abnormal point of the plurality of terminals at different temperatures and different gain levels as a final point of the corresponding power control abnormal point Power compensation value.

Preferably, the power compensation value is a difference between a relative power value of the power control abnormal point and a preset relative power value threshold.

Preferably, the power control abnormal point is a power point whose step length exceeds a prescribed step size.

Preferably, when the terminal requires power control of multiple channels to meet the requirements, the reference channel of the terminal is tested and adjusted to obtain a power compensation value less than a preset power threshold, and the other channel powers are correspondingly performed. Frequency compensation

The steps of performing frequency compensation on other channel powers include:

Collecting power values of different gain levels in other channels, comparing the collected power values with the power values of the reference channels of the corresponding gain levels, and obtaining the difference of the relative powers as the frequency compensation value for frequency compensation, and re-testing after compensation. The adjustment is continued according to the difference of the tested relative powers until the measured relative power difference is less than the preset power difference threshold.

The present invention also provides a system for controlling the power of a terminal inner loop, the system comprising: an acquisition unit configured to sequentially collect test data of respective gain levels at different temperatures of the terminal after the terminal is calibrated at a normal temperature;

The processing unit is configured to determine, according to the test data, a power compensation value of each power control abnormal point at different temperature and different gain levels;

The compensation unit is configured to compensate the power of the power control abnormal point according to the power compensation value obtained by the processing unit.

Preferably, the processing unit is configured to determine different temperatures and not according to the test data And the temperature and gain level corresponding to each power control abnormal point in the gain level, and determining to use the temperature compensation or the power gain switching point to compensate the power of the power control abnormal point and the specific power compensation value, and the obtained power compensation is applied. The value compensates the power corresponding to the corresponding power control abnormal point of the terminal, and after the compensation, retests and compensates the power control abnormal point until the measured power compensation value of the power control abnormal point is less than the preset The power compensation threshold value is obtained by accumulating all the power compensation values to obtain the power compensation value of the power control abnormal point.

Preferably, the processing unit is configured to determine, according to the test data, a temperature and a gain level corresponding to each power control abnormal point at different temperatures and different gain levels, and determine to compensate the power by using a temperature compensation or a power gain switching point. Controlling the power of the abnormal point and the specific power compensation value, applying the obtained power compensation value to compensate the power corresponding to the abnormal power control abnormal point of the terminal, and after the compensation, retesting the power control abnormal point and Compensating until the measured power compensation value of the power control abnormal point is less than a preset power compensation threshold, and accumulating all the power compensation values to obtain a power compensation value of the power control abnormal point, wherein determining the use temperature Compensating or power gain switching point compensating for power of the power control abnormal point includes: when the power control abnormal point appears in a process of decreasing from a maximum transmission power by a prescribed step size to a minimum transmission power, and transmitting from a minimum Power is increased one by one to the maximum power in a specified step In the process, the power is used to compensate the power control abnormal point power, otherwise the power gain switching point is used to compensate the power control abnormal point power.

Preferably, the processing unit is further configured to test a plurality of the terminals to obtain an average value of power compensation values of each power control abnormal point of the plurality of terminals at different temperatures and different gain levels as corresponding power control The final power compensation value of the abnormal point.

Preferably, the power control abnormal point is a power point whose step length exceeds a prescribed step size. Preferably, the processing unit is further configured to: when the terminal requires power control of multiple channels to meet the requirements, test and adjust the reference channel of the terminal to obtain a power compensation value smaller than a preset power threshold. After that, the other channel powers are compensated accordingly, wherein the frequency compensation corresponding to the other channel powers includes: collecting power values of different gain levels in other channels, and collecting the power values and the power values of the reference channels of the corresponding gain levels. Compare, obtain the difference of the relative power as the frequency compensation value for frequency compensation, re-test after compensation, continue to adjust according to the difference of the relative power of the test, until the measured relative power difference is less than the preset power difference threshold value.

The beneficial effects of the present invention are as follows:

The invention calculates and saves the power compensation value of the power control abnormal point that needs to be power adjusted by collecting test data of each gain level at different temperatures of the terminal, and when used, according to the specific power compensation value corresponding to the temperature, channel and gain level The terminal is compensated to ensure that the terminal has good consistency of inner loop power control.

Other features and advantages of the invention will be set forth in part in the description in the description. The objectives and other advantages of the invention will be realized and attained by the <RTI DRAWINGS

1 is a flowchart of a method for controlling inner loop power of a terminal according to Embodiment 1 of the present invention; FIG. 2 is a schematic diagram of correspondence between temperature and gain levels according to Embodiments 1 and 2 of the present invention; FIG. 3 is a schematic diagram of a terminal according to Embodiment 2 of the present invention; FIG. 4 is a schematic diagram of a corresponding relationship between a channel and a gain level according to Embodiment 2 of the present invention; FIG. 5 is a flowchart of a method for frequency compensation of a terminal inner loop power control according to Embodiment 2 of the present invention; 6 is a flowchart of another frequency compensation method for terminal inner loop power control according to Embodiment 2 of the present invention; FIG. 7 is a schematic diagram of a terminal inner loop power control system according to Embodiment 3 of the present invention. detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings in which FIG. For the sake of clarity and simplicity, detailed descriptions of known functions and structures in the devices described herein will be omitted when they may obscure the subject matter of the present invention.

Example 1

The embodiment of the invention provides a method for controlling the power of the inner loop of the terminal. Referring to FIG. 1, the method:

5101. After the terminal performs calibration at a normal temperature, sequentially collect test data of each gain level of the terminal at different temperatures;

The test data collected is a power value of each gain level at different temperatures of the terminal.

The corresponding relationship between the test data of each gain level and the corresponding temperature compensation value X _iN at each temperature point in the embodiment of the present invention is specifically as shown in FIG. 2 .

5102. Determine, according to the test data, a power compensation value of each power control abnormal point at different temperatures and different gain levels;

This step specifically includes:

After the compensation, the power control abnormal point is re-tested and compensated until the measured power compensation value of the power control abnormal point is less than a preset power compensation threshold, and all the power compensation values are accumulated to obtain the The power compensation value of the power control abnormal point. That is, the embodiment of the present invention repeatedly tests and compensates the power of the abnormal point of the power control, and finally makes the power compensation value of the measured power control abnormal point smaller than the preset power compensation threshold, and then accumulates all the power compensation values. The power compensation value X _{iN of} the power control abnormal point is obtained.

The determining, in the embodiment of the present invention, the step of using the temperature compensation or the power gain switching point to compensate the power of the power control abnormal point includes:

When the power control abnormal point occurs during the process of decreasing the maximum transmission power one by one to the minimum transmission power by a prescribed step size, and occurs during the process of increasing the maximum transmission power from the minimum transmission power to the maximum power one by one, then The power is used to compensate for the power control abnormal point power, otherwise the power gain switching point is used to compensate for the power control abnormal point power.

S103. Perform, by using the power compensation value, the power of the power control abnormal point to be compensated accordingly;

The embodiment of the present invention further tests the plurality of the terminals to obtain an average value of power compensation values of each power control abnormal point of the plurality of terminals at different temperatures and different gain levels as a final point of the corresponding power control abnormal point. The power compensation value, thereby more accurately determining the power compensation value of each power control abnormal point.

The power compensation value in the embodiment of the present invention is a difference between a relative power value of the power control abnormal point and a preset relative power value threshold.

The power control abnormal point in the embodiment of the present invention is a power point whose step length exceeds a predetermined step.

In the embodiment of the present invention, the power compensation value of the power control abnormal point that needs to be power adjusted is calculated and saved by collecting test data of each gain level at different temperatures of the terminal. When used, the power compensation value corresponding to the specific temperature and gain level is used. The terminal is compensated to ensure that the terminal has good consistency of inner loop power control.

Example 2

An embodiment of the present invention provides a method for controlling inner loop power of a terminal. Referring to FIG. 3, the method is provided. Temperature compensation, including:

5301, the test begins;

5302. Set the RF parameters and configure other parameters, and set the temperature point information to be tested. For example, set N test temperature points, respectively T\, T ₂ Τ _Ν ;

Corresponding list of gain control (AGC, Automatic Generation Control) values;

After the calibration, the terminal establishes a connection with the wireless communication tester, and firstly causes the terminal to enter the maximum power state first at the beginning of the automatic test, because discussing the low temperature is not significant to the terminal working state, so in this embodiment, the terminal is Starting from normal temperature, it is described as an example of long-term work or a gradual high temperature due to an increase in ambient temperature.

5304. Collect test data of each gain level at different temperatures of the terminal in sequence; in the embodiment of the present invention, test data of each gain level at a temperature point set in step S302, temperature point, gain level, and corresponding temperature are collected. The correspondence between the compensation values X _iN is specifically as shown in FIG. 2 .

5305. Determine, according to the test data, whether power adjustment is needed, and if yes, proceed to the next step, otherwise, enter S3010;

5306, determining whether temperature compensation is required, if yes, proceed to S307, otherwise, proceed to S308;

The embodiment of the present invention determines that the step of using the temperature compensation or the power gain switching point to compensate the power of the power control abnormal point includes:

When the power control abnormal point occurs during the process of decreasing the maximum transmission power one by one to the minimum transmission power by a prescribed step size, and occurs during the process of increasing the maximum transmission power from the minimum transmission power to the maximum power one by one, then The power is compensated for the power control abnormal point, otherwise the power gain switching point is compensated for the power of the power control abnormal point.

The power compensation value in the embodiment of the present invention is a relative power of the power control abnormal point. The difference between the value and the preset relative power value threshold.

5307, performing temperature compensation, and then entering S309;

5308, performing power gain switching point compensation, and then entering S309;

5309, after the power compensation value is written, enter S303;

After the compensation, the power control abnormal point is re-tested and compensated, and the power compensation value of the power control abnormal point is less than the preset power compensation threshold, and all power compensation is performed. The value is accumulated to obtain the power compensation value of the power control abnormal point; that is, the power of the abnormal point of the measured power control abnormal point is determined by the embodiment of the present invention, and the power compensation value of the measured power control abnormal point is less than the preset power. The compensation threshold value is added, and then all the power compensation values are accumulated to obtain the power compensation value X _{iN of} the power control abnormal point.

S3010, output power compensation final result;

In the embodiment of the present invention, by testing a plurality of the terminals, obtaining an average value of power compensation values of each power control abnormal point at different temperatures and different gain levels is saved as a final power compensation value of the power control abnormal point, thereby The power compensation value of each power control abnormal point is determined more accurately.

The present invention is described in detail in the following specific example:

Step 1, parameter configuration, set RF parameters and other parameters such as meters, and set the temperature point information to be tested. For example, setting N test temperature points, respectively, is a corresponding list of T ₂ Τ _Ν ; values;

Step 3: After the calibration, the terminal establishes a connection with the wireless communication tester;

In step 4, the program automatically enables the temperature monitoring unit. The temperature monitoring unit can use the thermistor inside the radio frequency chip or the terminal itself to obtain the temperature information, because the temperature compensation is done on the terminal. The compensation of the transmission link, so how to obtain the temperature information is not important. The unit monitors the actual temperature when the terminal is working. When the terminal temperature reaches the set temperature, such as τ\, the program issues an internal loop power test command to the meter, after which the temperature monitoring unit suspends operation.

Step 5: The inner loop power test starts, the data acquisition unit starts collecting test data, and stores the collected data into the database. After the test and the data acquisition are completed, the terminal returns to the maximum power state, and sends a request to the temperature monitor. unit.

Step 6. Repeat steps 4 and 5 until all the test information corresponding to the set temperature is collected. The program jumps out of the loop and enters the data processing unit.

Step 7, in the data processing unit, the collected data is analyzed to determine whether there is a power point whose step length exceeds a predetermined step; if there is no such power point, the output power compensation result is the original value, and the program ends. .

Step 8: If it is determined that there is a power point whose step size exceeds the specified step size, it is considered that there is a problem in the inner loop power control, and the transmit power needs to be adjusted, and the program further determines that the maximum transmit power is reduced from the maximum transmit power to the minimum step by step. This power point that occurs during the transmission of power occurs during the process of increasing the maximum transmission power from the specified transmission step to the maximum power. Is there a point in both processes that exceeds the specified step size at the same power point? nearby. This is to determine whether temperature compensation is required.

Step 9. If there are two points in the process that exceed the specified step size at the same power point, because the temperature compensation is compensation for the entire gain level, enter the temperature compensation program; otherwise, enter the power amplifier (PA, Power Amplifier) The gain switching point compensation procedure is because the PA gain switching point compensation is used to compensate for the occurrence of power control deviation in only one of the above processes due to factors such as the nonlinearity of the PA itself.

Step 10, after the calculated compensation value is written into the memory, the power is turned off to restart the terminal;

In step 11, the above steps 2 to 10 are repeated until the program judges that there is no problem in the inner loop power control, and the transmission power does not need to be adjusted. The obtained optimal power compensation value is output, and the program ends. When the terminal requires power control of multiple channels to meet the requirements, the reference channel of the terminal is tested and adjusted to obtain a power compensation value less than a preset power threshold, and then the gain levels of the other channels are sequentially collected. Test the data and perform power compensation. FIG. 5 is a flowchart of a frequency compensation method for terminal inner loop power control. As shown in FIG. 5, it includes:

S501, setting radio frequency parameters and configuring other parameters, and setting information of channels to be tested; for example, setting N test frequency points, respectively, F ₂ F _N ; a corresponding list of gain control (AGC, Automatic Generation Control) values;

S503. Collect test data of each test frequency point in sequence;

The corresponding relationship between the test data, the temperature point, the gain level, and the corresponding temperature compensation value X _iN of each gain level in each channel in the embodiment of the present invention is specifically shown in FIG. 4 .

S504: Determine, according to the test data, a frequency compensation value of each power control abnormal point under different channels and different gain levels, and save the value;

The step includes: collecting power values of different gain levels in other channels, comparing the collected power values with the power values of the reference channels of the corresponding gain levels, and obtaining a difference between the relative powers as a frequency compensation value for frequency compensation and compensation. After retesting, the adjustment is continued according to the difference of the relative power of the test until the measured relative power difference is less than the preset power difference threshold.

S505. In use, the terminal is compensated according to the specific gain level and the frequency compensation value corresponding to the channel.

The frequency compensation is specifically shown in Figure 6. After the reference channel power control meets the requirements, this method can be used to test other channels with power control requirements, and then the adjustment amount is calculated according to the test result, and the corresponding frequency compensation term is written. When the terminal works, after switching to the current channel, the chip automatically calls the compensation value under the corresponding channel to compensate the terminal transmit power according to the frequency compensation term. Thereby ensuring the power control of the terminal on different channels. The implementation process of the frequency compensation is similar to the implementation of the above temperature compensation, and the description will not be repeated here. Example 3

A terminal inner loop power control system, see Figure 7, the system includes:

The collecting unit is configured to sequentially collect test data of each gain level at different temperatures of the terminal after the terminal is calibrated at normal temperature;

The power compensation value is a difference between a relative power value of the power control abnormal point and a preset relative power value threshold.

The power control abnormal point is a power point whose step length exceeds a prescribed step size.

In the embodiment of the present invention, the acquisition unit, the processing unit, and the compensation unit can all be implemented by a processor, a microprocessor, an FPGA, a DSP, or the like.

Embodiment 1

The processing unit is configured to determine, according to the test data, a temperature and a gain level corresponding to each power control abnormal point at different temperatures and different gain levels, and determine to use the temperature compensation or the power gain switching point to compensate the power of the power control abnormal point And the specific power compensation value, applying the obtained power compensation value to compensate the power corresponding to the abnormal power control abnormal point of the terminal, and after the compensation, retesting and compensating the power control abnormal point until the measurement is performed. The power compensation value of the power control abnormal point is less than a preset power compensation threshold, and all power compensation values are accumulated to obtain a power compensation value of the power control abnormal point.

Embodiment 2

The processing unit is configured to determine, according to the test data, a temperature and a gain level corresponding to each power control abnormal point at different temperatures and different gain levels, and determine to use the temperature compensation or the power gain switching point to compensate the power of the power control abnormal point And specific power compensation values, Applying the obtained power compensation value to compensate the power corresponding to the corresponding power control abnormal point of the terminal, and after the compensation, retesting and compensating the power control abnormal point until the measured power control abnormal point The power compensation value is less than the preset power compensation threshold, and all the power compensation values are accumulated to obtain a power compensation value of the power control abnormal point, wherein determining to use the temperature compensation or the power gain switching point to compensate the power control abnormality The power of the point includes: when the power control abnormal point occurs in the process of decreasing from the maximum transmission power one by one to the minimum transmission power, and increasing from the minimum transmission power by a prescribed step by step to the maximum power In the process, the power is used to compensate the power control abnormal point power, otherwise the power gain switching point is used to compensate the power control abnormal point power.

Embodiment 3

The processing unit is further configured to test a plurality of the terminals to obtain an average value of power compensation values of each power control abnormal point of the plurality of terminals at different temperatures and different gain levels as a corresponding power control abnormal point. The final power compensation value.

Embodiment 4

The processing unit is further configured to: when the terminal requires power control of multiple channels to meet the requirements, test and adjust the reference channel of the terminal to obtain a power compensation value less than a preset power threshold, and then use other channels. The power is compensated accordingly, wherein the frequency compensation corresponding to the other channel powers includes: collecting power values of different gain levels in other channels, and comparing the collected power values with the power values of the reference channels of the corresponding gain levels to obtain relative The difference of the power is used as the frequency compensation value for frequency compensation. After the compensation, the test is re-tested, and the difference between the relative powers of the test is continued until the measured relative power difference is less than the preset power difference threshold.

In summary, the present invention provides a method and system for power control of a terminal inner loop. The present invention calculates and saves power of an abnormal power control point that requires power adjustment by collecting test data of various gain levels at different temperatures of the terminal. Compensation value, when used, according to the specific temperature, The power compensation value corresponding to the channel and the gain level compensates the terminal, thereby ensuring that the terminal has good consistency of inner loop power control.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Industrial applicability

Claims

claims

1. A method for terminal inner-loop power control, including:

After the terminal is calibrated at normal temperature, test data of each gain level at different temperatures of the terminal are collected in sequence;

The power compensation value of each power control abnormal point under different temperatures and different gain levels is determined based on the test data, and the power of the power control abnormal point is compensated accordingly using the power compensation value.

2. The method according to claim 1, wherein the step of determining the power compensation value of each power control abnormal point at different temperatures and different gain levels based on the test data includes: determining different temperatures and gain levels based on the test data. The temperature and gain level corresponding to each power control abnormal point under different gain levels, and determine the use of temperature compensation or power gain switching point to compensate the power of the power control abnormal point and the specific power compensation value;

Apply the obtained power compensation value to compensate the power corresponding to the corresponding power control abnormal point of the terminal;

After compensation, the power control abnormal point is retested and compensated until the measured power compensation value of the power control abnormal point is less than the preset power compensation threshold value, and all power compensation values are accumulated to obtain the Power compensation value for power control abnormal point.

3. The method according to claim 2, wherein the step of determining to use temperature compensation or power gain switching point to compensate the power of the power control abnormal point includes:

When the power control abnormal point occurs in the process of decreasing from the maximum transmit power to the minimum transmit power in a prescribed step, and in the process of increasing from the minimum transmit power to the maximum power in a prescribed step, then The temperature is used to compensate the power at the power control abnormal point, otherwise the power gain switching point is used to compensate the power at the power control abnormal point.

4. The method according to claim 1, further comprising: testing multiple terminals to obtain power control of multiple terminals under different temperatures and different gain levels. The average value of the power compensation values of the abnormal points is used as the final power compensation value of the corresponding power control abnormal point.

5. The method according to any one of claims 1 to 4, characterized in that the power compensation value is the difference between the relative power value of the power control abnormal point and a preset relative power value threshold.

6. The method according to any one of claims 1 to 4, characterized in that the power control abnormal point is a power point whose step length exceeds a prescribed step length.

7. The method according to any one of claims 1 to 4, characterized in that, when the power control of multiple channels required by the terminal meets the requirements, the reference channel of the terminal is tested and adjusted to obtain the power. After the compensation value is less than the preset power threshold, frequency compensation will be performed on other channel powers accordingly;

Among them, the steps to perform frequency compensation accordingly for other channel powers include:

Collect the power values of different gain levels in other channels, compare the collected power values with the power values of the reference channels of the corresponding gain levels, and obtain the relative power difference as the frequency compensation value for frequency compensation. After compensation, retest. Continue to adjust according to the measured relative power difference until the measured relative power difference is less than the preset power difference threshold.

8. A terminal inner-loop power control system, including:

The collection unit is configured to sequentially collect the test data of each gain level of the terminal at different temperatures after the terminal is calibrated at normal temperature;

A processing unit configured to determine the power compensation value of each power control abnormal point at different temperatures and different gain levels based on the test data;

A compensation unit configured to correspondingly compensate the power of the power control abnormal point according to the power compensation value obtained by the processing unit.

9. The system according to claim 8, characterized in that,

The processing unit is configured to determine different temperatures, different gains, etc. based on the test data. The temperature and gain level corresponding to each power control abnormal point under the stage are determined, and the power and specific power compensation value of using temperature compensation or power gain switching point to compensate the power control abnormal point are determined, and the obtained power compensation value is applied to The power corresponding to the corresponding power control abnormal point of the terminal is compensated. After compensation, the power control abnormal point is retested and compensated until the measured power compensation value of the power control abnormal point is less than the preset power. Compensation threshold value: Accumulate all power compensation values to obtain the power compensation value of the power control abnormal point.

10. The system according to claim 9, characterized in that,

The processing unit is configured to determine the temperature and gain level corresponding to each power control abnormal point under different temperatures and different gain levels based on the test data, and determine to use temperature compensation or power gain switching point to compensate the power control abnormal point. The power and the specific power compensation value are used to compensate the power corresponding to the corresponding power control abnormal point of the terminal using the obtained power compensation value. After compensation, the power control abnormal point is retested and compensated until The measured power compensation value of the power control abnormal point is less than the preset power compensation threshold value, and all power compensation values are accumulated to obtain the power compensation value of the power control abnormal point, where it is determined to use temperature compensation or power The power of the gain switching point to compensate for the power control abnormal point includes: when the power control abnormal point appears in the process of decreasing from the maximum transmit power to the minimum transmit power in a prescribed step, and when the power control abnormal point decreases from the minimum transmit power in a prescribed step If the step size gradually increases to the maximum power, the temperature is used to compensate the power at the power control abnormal point; otherwise, the power gain switching point is used to compensate the power at the power control abnormal point.

11. The system according to claim 8, characterized in that,

The processing unit is further configured to test a plurality of the terminals and obtain an average of the power compensation values of each power control abnormal point of the plurality of terminals under different temperatures and different gain levels as the corresponding power control abnormal point. Final power compensation value.

12. The system according to any one of claims 8 to 11, characterized in that the power compensation value is the relative power value of the power control abnormal point and a preset relative power value threshold. difference.

13. The system according to any one of claims 8 to 11, characterized in that the power control abnormal point is a power point whose step length exceeds a prescribed step length.

14. The system according to any one of claims 8 to 11, characterized in that the processing unit is further configured to: when the power control of multiple channels required by the terminal meets the requirements, After the reference channel is tested and adjusted and the power compensation value is less than the preset power threshold value, the power of other channels is compensated accordingly. The corresponding frequency compensation of the power of other channels includes: collecting the power of different gain levels in other channels. value, compare the collected power value with the power value of the reference channel of the corresponding gain level, and obtain the relative power difference as the frequency compensation value for frequency compensation. After compensation, retest, and continue to adjust according to the tested relative power difference. , until the measured relative power difference is less than the preset power difference threshold.