CN103458447A - Base station gain temperature compensation, calibration and verification methods and compensation device - Google Patents
Base station gain temperature compensation, calibration and verification methods and compensation device Download PDFInfo
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- CN103458447A CN103458447A CN2012101791256A CN201210179125A CN103458447A CN 103458447 A CN103458447 A CN 103458447A CN 2012101791256 A CN2012101791256 A CN 2012101791256A CN 201210179125 A CN201210179125 A CN 201210179125A CN 103458447 A CN103458447 A CN 103458447A
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Abstract
The invention discloses base station gain temperature compensation, calibration and verification methods and a compensation device. The base station gain temperature compensation method can solve the problem that by the adoption of an existing method, the gain temperature characteristic of each area of a multi-transition multi-receiving base station cannot be accurately compensated. The base station gain temperature compensation method comprises the following steps that based on the current working temperatures of different areas of the base station, each gain temperature compensation table corresponding to one area is called, and each initial gain temperature compensation value corresponding to one area is obtained; based on the fiducial temperature of each area of the base station corresponding to a current frequency point, each gain temperature compensation table corresponding to one area is called, and each fiducial gain temperature compensation value corresponding to one area is obtained; the difference value of the initial gain temperature compensation value of each area and the fiducial gain temperature compensation value of each area of the base station is calculated and serves as the gain temperature compensation value of each area; the gain temperature compensation values of all the areas of the base station are added, so that the gain temperature compensation value of the whole base station is obtained; the gain temperature compensation value of the whole base station is used for gain temperature characteristic compensation of the base station.
Description
Technical field
The present invention relates to moving communicating field, be specifically related to a kind of base station Temperature compensation for gain, calibration and verification method and compensation arrangement.
Background technology
The gain meeting of base station radio-frequency device changes along with the change of temperature, in the situation that circuit structure is identical, temperature change is larger, and the variation of gain is just larger.After change in gain, for base station down, can cause the power output precise decreasing, affect overlay area; Up for base station, can cause the power detection precise decreasing, affects the speed of user uplink data business.Therefore, in order to make base station up-downgoing gain control in certain limit, the temperature characteristic compensation that need to be gained, so that base station is while working under different temperatures, it is constant that each channel gain keeps substantially.Before carrying out the gain temperature characteristic compensation of base station, also need the accuracy that guarantees to gain at normal temperatures in base station, this is calibrated to realize by each stylobate is stood in to production line.
Calibration is exactly in the production process of base station, and base station each passage power under different frequency of test under normal temperature, obtain one group of calibration value, and write in the memory of base station, for call later.When variation of ambient temperature, the gain characteristic of base station also changes, and can make the calibration chart in base station no longer applicable.Restriction due to condition, we can't stand under all ambient temperatures and carry out frequency calibration each stylobate again, therefore in order to guarantee the accuracy of frequency calibration value, need in addition the base station temperature characteristic compensation that gained, offset while obtaining being applicable to different temperatures together with the frequency calibration table, guarantee the constant of gain.
Existing technique for temperature compensation is to change ascending power reading and the descending gain of base station by the variation of certain some temperature in base stations detected, reaches gain and the balance of power reading under different temperatures.And the gain while usining normal temperature changes the descending gain of base station or the size of ascending power reading as basis.The problem of bringing be can't accurate response MIMO base station in the gain temperature characterisitic of zones of different, and all using the normal temperature gain and also can't obtain real temperature compensation value as benchmark.Simultaneously, due to the production cost reason, can not carry out high low-temperature test to each stylobate station, be generally, after obtaining the temperature gain characteristic by the sample base station, to be applied in the base station of all same types.In the process of long-term production, due to device batch property difference, can make base station gain temperature characterisitic and change, cause the inaccurate situation of base station temperature-compensating.
For above problem, effective solution is not yet proposed at present.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of gain temperature verification method of base station, the problem that can't find that to solve conventional method the radio-frequency devices gain temperature characterisitic in each module of base station changes.
For solving the problems of the technologies described above, the invention provides a kind of gain temperature verification method of base station, comprising:
Obtain the first gain variations in temperature relation of the sample base station in high and low temperature environment;
Obtain the second gain variations in temperature relation of each base station in the high temperature ageing environment;
Whether the difference that judges gain and the sample base station gain in high and low temperature environment of each base station in the high temperature ageing environment under synthermal condition is in preset range, and if so, the gain temperature characterisitic of this base station does not change; If not, the gain temperature characterisitic of this base station changes.
Another technical problem that the present invention will solve is to provide a kind of gain temperature correction method of base station, comprising:
Obtain each the self-corresponding gain variations in temperature relation of sample base station zones of different in high and low temperature environment;
Obtain the gain variations in temperature relation of each base station in the high temperature ageing environment;
The base station of difference in preset range of gain and the sample base station gain in high and low temperature environment of screening in the high temperature ageing environment, i.e. the base station that screening gain temperature characterisitic does not change, calibrated.
Another technical problem that the present invention will solve is to provide a kind of Temperature compensation for gain method of base station, can't accurately compensate the problem of each zone gain temperature characterisitic of MIMO base station to solve conventional method.
For solving the problems of the technologies described above, the invention provides a kind of Temperature compensation for gain method of base station, comprising:
Call Temperature compensation for gain table corresponding to each zone according to base station zones of different current operating temperature, obtain respectively initial gain temperature compensation value corresponding to each zone;
According to current frequency, corresponding each regional fiducial temperature of base station is called Temperature compensation for gain table corresponding to each zone, obtains respectively benchmark Temperature compensation for gain value corresponding to each zone;
The difference of each regional initial gain temperature compensation value of calculation base station and this regional benchmark Temperature compensation for gain value, regional Temperature compensation for gain value as each;
Each regional Temperature compensation for gain value addition of base station is obtained to the Temperature compensation for gain value of whole base station, by the Temperature compensation for gain value of this base station to the base station temperature characteristic compensation that gained.
For solving the problems of the technologies described above, the present invention also provides a kind of device of realizing the base station Temperature compensation for gain, comprise, initial gain temperature compensation value acquisition module, benchmark Temperature compensation for gain value acquisition module, Temperature compensation for gain value computing module and compensating module, wherein:
Described initial gain temperature compensation value acquisition module, for call Temperature compensation for gain table corresponding to each zone according to base station zones of different current operating temperature, obtain respectively initial gain temperature compensation value corresponding to each zone;
Described benchmark Temperature compensation for gain value acquisition module, call Temperature compensation for gain table corresponding to each zone for each regional fiducial temperature of the base station corresponding according to current frequency, obtains respectively benchmark Temperature compensation for gain value corresponding to each zone;
Described Temperature compensation for gain value computing module, for the difference of each regional initial gain temperature compensation value of calculation base station and this regional benchmark Temperature compensation for gain value, regional Temperature compensation for gain value as each;
Described compensating module, for each regional Temperature compensation for gain value addition of base station being obtained to the Temperature compensation for gain value of whole base station, by the Temperature compensation for gain value of this base station to the base station temperature characteristic compensation that gained.
Example of the present invention has proposed the temperature compensation collecting method of base station, without the temperature compensation means that increases hardware, utilize the subregion temperature compensation data that gather in advance, carry out the subregion Temperature compensation for gain for the base station characteristics, base stations detected Temperature compensation for gain checking measure in the high temperature ageing environment also is provided simultaneously, improve the temperature-compensating precision of base station, avoided causing compensate.Better effects if of the present invention is used in the MIMO base station.
The accompanying drawing explanation
Fig. 1 is embodiment 1 flow chart;
Fig. 2 is the descending temperature compensation data acquisition of complete machine schematic diagram;
Fig. 3 is the flow chart of checking Temperature compensation for gain characteristic;
Fig. 4 is embodiment 2 flow charts;
The veneer that Fig. 5 is the MIMO base station and power amplifier corresponding relation figure;
Fig. 6 is the up temperature compensation data acquisition of complete machine schematic diagram;
Fig. 7 is the descending temperature compensation data acquisition of veneer schematic diagram;
Fig. 8 is the up temperature compensation data acquisition of veneer schematic diagram;
Fig. 9 obtains flow chart for gain temperature characteristic compensation value;
Figure 10 is embodiment 3 flow charts;
Figure 11 is gain temperature characteristic compensation flow chart;
Figure 12 is the apparatus structure schematic diagram.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
The present embodiment is introduced a kind of base station gain temperature characterisitic verification method, the problem changed with the radio-frequency devices gain temperature characterisitic that can't find in the solution conventional art in each module of base station.Temperature compensation value is generally the data of utilizing a few sample base station the to obtain offset datas as all base stations of same type.But along with continuing of producing carries out, in base station, the variation of radio-frequency devices batch can cause the change of base station entire gain temperature characterisitic, in order to find in time this variation and to be tackled, the present embodiment utilizes the high temperature ageing environment of base station, gather base station module up and down power detected value, obtain base station normal temperature to the temperature characterisitic in the high temperature scope, the normal temperature of the high low temperature image data in contrast base station is to the high temperature scope, if larger change occurs, change has occurred in the gain temperature characterisitic that the base station that this is a collection of is described, needs resampling to obtain new offset data; If do not change, continue to use former temperature compensation data.As shown in Figure 1, comprise step 110-130:
At first, build complete machine and adopt the ring of numbers border: as shown in Figure 2, computer, sample base station are connected respectively with power meter, and its Computer connects sample base station network interface, power meter connects sample base station transceiver interface, and the sample base station is placed in high and low temperature environment (high-low temperature chamber);
Then, the sample base station starts transmitting power, and high-low temperature chamber starts to carry out temperature cycles, and every one section Preset Time (the first Preset Time), obtaining that computer (base station control software) in computer reads is the detection power P of sample base station
1, the base station detection power P that records of power meter
2, and the temperature value T of sample inside of base station veneer
b;
For example, after circulation (24 hours) after a while, obtain different T
bthe P that temperature value is corresponding
1and P
2, calculate different T
bthe P that temperature value is corresponding
1-P
2, this P
1-P
2mean that the descending power sense channel gain of this sample base station, with the fluctuation of temperature (only take sense channel describe for example), hereinafter to be referred as base station gain or complete machine gain, uses P herein
1deduct P
2to consider that the actual power of base station self emission is also in fluctuation, and P
1-P
2this part fluctuation can be balanced out.The first gain variations in temperature relation of base station comprises different temperatures value T
band to the base station gain (P at should temperature
1-P
2).
Consider same hardware circuit design, the Temperature compensation for gain characteristic is more or less the same, and therefore individual base stations is carried out the collection of high low temperature gain, and the gain temperature characterisitic of acquisition can be applied in the base station of same type, and collected base station is the sample base station.Each base station of mentioning in subsequent step is the base station identical with this sample BTS hardware circuit structure.
In the high temperature ageing environment of producing, unrealistic for each stylobate station access instrument, therefore only connect load, after power is sent in base station, at normal temperature to the high temperature process, (the second Preset Time) gathers and records that make an uproar in each base station Current Temperatures and the up end corresponding to this temperature and the descending power detected value at set intervals, the second gain variations in temperature relation comprises that make an uproar in temperature and the up end corresponding to this temperature and the descending power detected value, the second gain variations in temperature relation of each base station is kept in the memory of base station separately.
The base station do not changed for the gain temperature characterisitic, proceed subsequent step, as calibration.The base station changed for the gain temperature characterisitic, need to return step 110, and in high and low temperature environment, resampling obtains the new gain variations in temperature relation in base station.If, through repeatedly judgement, the change in gain of base station is not still in preset range, this base station is defective base station.
Lower mask body is introduced step 130, how to judge that the difference of the gain of base station in the high temperature ageing environment under synthermal condition and gain in high and low temperature environment is whether in preset range:
As shown in Figure 3, the change in gain of obtaining in sample base station high and low temperature environment under the complete machine change in gain situation obtained in the high temperature ageing process of every stylobate station and synthermal condition is contrasted, up-downgoing contrasts respectively (at the bottom of up employing, make an uproar and contrasted), for example, if find that gain difference surpasses predetermined threshold value (0.5dB), think that change has occurred the gain temperature characterisitic of this collection of base station, need to resample and carry out the collection of temperature compensation data; If do not change, proceed subsequent operation.Particularly, the change in gain of different temperatures is contrasted respectively, as long as there is a change in gain at temperature to surpass threshold value, just thinks that variation has occurred the gain temperature characterisitic.
Embodiment 2
The present embodiment is introduced a kind of gain temperature correction method of base station, as shown in Figure 4, comprises step 210-230:
Take the MIMO base station as example, the TRX(of MIMO base station transmitting-receiving letter veneer) and a plurality of PA(power amplifier), as shown in Figure 5, near each regional temperature different (PA, temperature contrast is larger), corresponding gain temperature characterisitic also has difference.For example, for two two receipts of 2T2R() base station, a TRX(or two are arranged) and two PA(count PA1, PA2), when PA1 closes, when PA2 opens, the temperature in these two zones differs larger, the device gain temperature characterisitic in zone also has larger difference.Under the illustrating of step 210 seen.
Step 230: the base station of difference in preset range of gain and the sample base station gain in high and low temperature environment of screening in the high temperature ageing environment, i.e. the base station that screening gain temperature characterisitic does not change, calibrated.
Concrete screening operation is with reference to embodiment 1 step 130;
Calibration operation comprises: when normal temperature is calibrated each frequency, record respectively the temperature value of current single board and power amplifier, the fiducial temperature as calibration, write in the calibration chart of base station.The frequency calibration sheet format adopted is as shown in table 1.
Table 1 gain frequency calibration chart form example
| Frequency | The frequency calibration value | The veneer | Power amplifier | 1 temperature | …… | Power amplifier n temperature |
| … | … | … | … | … | … | |
| … | … | … | … | … | … |
Same hardware circuit design, the Temperature compensation for gain characteristic is identical, and gain variations in temperature relation that can the collecting sample base station is as temperature compensation data, and temperature-compensating as a whole.And the fluctuation gained due to the device benchmark in every stylobate station, overall gain is different, therefore need to be calibrated at production line.
Veneer and the power amplifier of base station of below take specifically introduced step 210 as example, how in high and low temperature environment, to obtain veneer and the power amplifier gain variations in temperature relation of base station.
At first, according to Fig. 2,6,7,8 shown devices, under high and low temperature environment, gather the temperature compensation data of complete machine and veneer.The tolerance degree difference of different base stations to temperature, take macro base station as example, and the temperature range of its high and low temperature environment is-40 ℃ ~ 50 ℃.Fig. 2 is the device connection diagram that gathers the descending change in gain of complete machine, and Fig. 6 is the device connection diagram that gathers the up change in gain of complete machine.Fig. 7 is the device connection diagram that gathers the descending change in gain of veneer, and Fig. 8 is the device connection diagram that gathers the up change in gain of veneer.Data after gathering are processed, can be obtained the change in gain corresponding to each temperature spot of veneer, be i.e. veneer gain variations in temperature relation, and the change in gain corresponding to each temperature spot of complete machine, i.e. complete machine gain variations in temperature relation.
Then, deduct the gain data of uniform temp point in veneer with the gain data of each temperature spot of complete machine, obtain the gain variations in temperature relation of power amplifier.The change in gain of considering complete machine equals the change in gain that veneer adds power amplifier, and the change in gain of power amplifier is inconvenient to gather, and the method for therefore utilizing the complete machine gain to deduct the veneer gain obtains the change in gain of power amplifier.Finally obtain two kinds of Temperature compensation for gain tables of veneer and power amplifier.
Fig. 9 has described descending Temperature compensation for gain list acquirement method, uply also uses identical method.The offset acquisition methods of each passage is consistent, and the base station down power detection passage of take is example, and it is as follows that concrete offset obtains flow process:
Step 2, the sample base station transmitting power, high-low temperature chamber starts to carry out temperature cycles, at set intervals, obtains the detection power P of the sample base station that computer reads
1, the base station detection power P that records of power meter
2, and the temperature value T of inside of base station veneer
b, the temperature value T of power amplifier in the same time
p;
Step 3, the circulation (for example 24 hours) through after a while, obtain different T
bthe P that temperature value is corresponding
1and P
2, calculate the fluctuation P of the descending power sense channel gain of this sample base station with temperature
1-P
2;
Step 4, complete machine is taken apart, build veneer and adopt the ring of numbers border, because veneer power is less, for guaranteeing the accuracy of reading, change power meter into frequency spectrograph, as shown in Figure 7, computer, veneer and frequency spectrograph are connected respectively, its Computer connecting single board network interface, frequency spectrograph connecting single board transmitting-receiving interface, be placed on veneer in high and low temperature environment;
Step 5, carry out temperature cycles, and (the 3rd Preset Time) obtains the veneer power detection value P that computer reads at set intervals
3, the veneer power detection value P that frequency spectrograph records
4, and the temperature value T of veneer
b;
Step 6, utilize P
3-P
4obtain the undulating value (veneer gain) of the power of veneer detection with temperature, the temperature value T of the veneer of this undulating value and correspondence
bfor the gain variations in temperature relation in veneer zone, can be recorded as the Temperature compensation for gain table of veneer;
Step 7, utilize the P obtained in step 3
1-P
2(complete machine gain) deducts corresponding identical veneer temperature T
bthe time P
3-P
4(veneer gain), obtain the undulating value of the gain of power amplifier with temperature, the temperature value T of the power amplifier of this undulating value and correspondence
p(this T
pfor veneer temperature T corresponding to above-mentioned undulating value
bpower amplifier temperature value in the same time) be the gain variations in temperature relation in power amplifier zone, be recorded as the Temperature compensation for gain table of power amplifier, the overall temperature compensation value as base station together in conjunction with the Temperature compensation for gain table of veneer.
When base station has a plurality of power amplifier, adopt said method to obtain respectively gain variations in temperature relation corresponding to different power amplifiers zone, in step 1, need power meter is connected to the transmitting-receiving interface that power amplifier to be measured is corresponding, measure the temperature that this power amplifier is corresponding when step 2.
By the gain temperature variation in each zone, independent collection base station, use respectively the temperature compensation value in zone separately in the time of compensation, just can compensate respectively temperature characterisitic difference separately.
Embodiment 3
The present embodiment is introduced a kind of Temperature compensation for gain method of base station, as shown in figure 10, comprises step 310-340:
Step 340, obtain each regional Temperature compensation for gain value addition of base station the Temperature compensation for gain value of whole base station, by the Temperature compensation for gain value of this base station to the base station temperature characteristic compensation that gained.
Below take base station single-board and power amplifier as example describes said process in detail, as shown in figure 11, comprise the following steps:
Step 2, (for example 8s) detects the temperature value of veneer and power amplifier module to be compensated at set intervals, counts CurTrxTemp(current single board temperature) and the current power amplifier temperature of CurPaTemp();
If a plurality of power amplifier modules to be compensated are arranged, detect respectively the temperature of the plurality of power amplifier module.
Step 3 is searched respectively the current Temperature compensation for gain value of Temperature compensation for gain value CurTrxGain(veneer that each Current Temperatures is corresponding in veneer Temperature compensation for gain table and power amplifier Temperature compensation for gain table) and the current Temperature compensation for gain value of CurPaGain(power amplifier);
If a plurality of power amplifier modules to be compensated are arranged, search the current Temperature compensation for gain value of power amplifier separately according to the power amplifier Temperature compensation for gain table of each power amplifier respectively.
Step 4 is searched corresponding veneer fiducial temperature CalTrxTemp and power amplifier fiducial temperature CalPaTemp in the gain frequency calibration chart according to current frequency;
Step 5, utilize the fiducial temperature of veneer and power amplifier to obtain respectively benchmark Temperature compensation for gain value CalTrxGain(veneer benchmark Temperature compensation for gain value corresponding to fiducial temperature separately in veneer Temperature compensation for gain table and power amplifier Temperature compensation for gain table) and CalPaGain(power amplifier benchmark Temperature compensation for gain value);
Step 6, calculate respectively the Temperature compensation for gain value of veneer and power amplifier, the Temperature compensation for gain value A=CurTrxGain-CalTrxGain of veneer, the Temperature compensation for gain value B=CurPaGain-CalPaGain of power amplifier, the Temperature compensation for gain value of base station integral body is A+B;
If a plurality of power amplifier modules to be compensated are arranged, calculate respectively the Temperature compensation for gain value of each power amplifier.
Step 7, carry out temperature gain compensation with the Temperature compensation for gain value A+B of base station to base station.
If a plurality of power amplifier modules to be compensated are arranged, use respectively Temperature compensation for gain value and the corresponding base station of the veneer Temperature compensation for gain value addition post-compensation passage of power amplifier module separately.
In order to improve the accuracy of base station temperature-compensating, the present invention, when the normal temperature calibration is carried out in base station, records respectively the calibration temperature of veneer and power amplifier in base station, and writes in calibration chart, as the fiducial temperature of base station calibration.When Temperature compensation for gain is carried out in base station, get respectively the temperature value in base station single-board and each power amplifier zone and the difference of fiducial temperature and compensate, can solve the error that different base station calibration temperature difference is brought.
Embodiment 4
The present embodiment introduction realizes the device of Temperature compensation for gain, as shown in figure 12, comprises, and initial gain temperature compensation value acquisition module, benchmark Temperature compensation for gain value acquisition module, Temperature compensation for gain value computing module and compensating module, wherein:
This initial gain temperature compensation value acquisition module, for call Temperature compensation for gain table corresponding to each zone according to base station zones of different current operating temperature, obtain respectively initial gain temperature compensation value corresponding to each zone;
This benchmark Temperature compensation for gain value acquisition module, call Temperature compensation for gain table corresponding to each zone for each regional fiducial temperature of the base station corresponding according to current frequency, obtains respectively benchmark Temperature compensation for gain value corresponding to each zone;
This Temperature compensation for gain value computing module, for the difference of each regional initial gain temperature compensation value of calculation base station and this regional benchmark Temperature compensation for gain value, regional Temperature compensation for gain value as each;
This compensating module, for each regional Temperature compensation for gain value addition of base station being obtained to the Temperature compensation for gain value of whole base station, by the Temperature compensation for gain value of this base station to the base station temperature characteristic compensation that gained.
The base station zones of different comprises veneer zone and power amplifier zone.
Preserve each each self-corresponding gain variations in temperature relation of zone in the Temperature compensation for gain table of described each zone correspondence.Concrete acquisition methods is referring to previous embodiment.
One of ordinary skill in the art will appreciate that all or part of step in said method can come the instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
If for example there is a plurality of variations in temperature zone base station, can adopt said method to obtain each regional Temperature compensation for gain table, and calibration chart, and compensate, be not limited to veneer and power amplifier.
Claims (22)
1. the gain temperature verification method of a base station comprises:
Obtain the first gain variations in temperature relation of the sample base station in high and low temperature environment;
Obtain the second gain variations in temperature relation of each base station in the high temperature ageing environment;
Whether the difference that judges gain and the sample base station gain in high and low temperature environment of each base station in the high temperature ageing environment under synthermal condition is in preset range, and if so, the gain temperature characterisitic of this base station does not change; If not, the gain temperature characterisitic of this base station changes.
2. the method for claim 1 is characterized in that:
Described the first gain variations in temperature relation of obtaining the sample base station in high and low temperature environment comprises:
The sample base station is placed in to high and low temperature environment and carries out temperature cycles, every the first Preset Time, base station the second detection power that the power meter that obtain base station the first detection power that the computer that connects sample base station network interface reads, connects sample base station transceiver interface records, and the temperature value of sample inside of base station veneer, the difference that the base station gain is this base station first detection power and base station the second detection power, described the first gain variations in temperature relation comprises temperature value and the base station gain corresponding to each temperature value of sample inside of base station veneer.
3. method as claimed in claim 1 or 2 is characterized in that:
For macro base station, described high and low temperature environment refers to the environment of-40 ℃ ~ 50 ℃.
4. method as claimed in claim 1 or 2 is characterized in that:
Described the second gain variations in temperature relation of obtaining each base station in the high temperature ageing environment comprises:
Base station is placed in to the high temperature ageing environment, at normal temperature to the high temperature process, every the second Preset Time, gathering and record the up end corresponding to each base station Current Temperatures and this temperature makes an uproar and the descending power detected value, and the second gain variations in temperature relation of each base station comprises that make an uproar in temperature and the up end corresponding to this temperature and the descending power detected value.
5. the method for claim 1 is characterized in that:
Whether the difference that judges gain and the sample base station gain in high and low temperature environment of each base station in the high temperature ageing environment under synthermal condition in preset range, comprising:
For up-downgoing gain judgement respectively, during uniform temp, whether the difference of the base station of each base station in high temperature ageing environment gain gain of the base station in high and low temperature environment with the sample base station is in preset range, as long as a difference at temperature is arranged not in preset range, think that the gain temperature characterisitic of this base station changes;
Described each base station is identical with the hardware circuit of sample base station.
6. the gain temperature correction method of a base station comprises:
Obtain each the self-corresponding gain variations in temperature relation of sample base station zones of different in high and low temperature environment;
Obtain the gain variations in temperature relation of each base station in the high temperature ageing environment;
The base station of difference in preset range of gain and the sample base station gain in high and low temperature environment of screening in the high temperature ageing environment, i.e. the base station that screening gain temperature characterisitic does not change, calibrated.
7. method as claimed in claim 6 is characterized in that:
The base station zones of different comprises veneer zone and power amplifier zone, and the gain data that described power amplifier zone is base station at this temperature at the gain data of certain temperature deducts the gain data of veneer at this temperature.
8. method as claimed in claim 7 is characterized in that:
Described each self-corresponding gain variations in temperature relation of sample base station zones of different of obtaining in high and low temperature environment comprises:
The sample base station is placed in to high and low temperature environment and carries out temperature cycles, every the first Preset Time, base station the second detection power that the power meter that obtain base station the first detection power that the computer that connects sample base station network interface reads, connects sample base station transceiver interface records, and the temperature value of sample inside of base station veneer, the temperature value of power amplifier, the difference that the base station gain is this base station first detection power and base station the second detection power;
Veneer in the sample base station is placed in to high and low temperature environment and carries out temperature cycles, every the 3rd Preset Time, obtain the temperature value of veneer, veneer the first detection power that the computer of connecting single board network interface reads, veneer the second detection power that the frequency spectrograph of connecting single board transmitting-receiving interface records, the difference that the veneer gain is this veneer first detection power and veneer the second detection power;
The gain variations in temperature relation in described veneer zone comprises veneer temperature value and veneer gain corresponding to each temperature value; The power amplifier zone is the difference that at this temperature, gain in base station and veneer gains in the gain of certain temperature, and the gain variations in temperature relation in described power amplifier zone comprises power amplifier temperature value and power amplifier gain corresponding to each temperature value.
9. as claim 6 or 7 or 8 described methods, it is characterized in that:
For macro base station, described high and low temperature environment refers to the environment of-40 ℃ ~ 50 ℃.
10. method as claimed in claim 6 is characterized in that:
The described gain variations in temperature relation of obtaining each base station in the high temperature ageing environment comprises:
Base station is placed in to the high temperature ageing environment, at normal temperature to the high temperature process, every the second Preset Time, gathering and record the up end corresponding to each base station Current Temperatures and this temperature makes an uproar and the descending power detected value, and the gain variations in temperature relation of each base station comprises that make an uproar in temperature and the up end corresponding to this temperature and the descending power detected value.
11. method as claimed in claim 6 is characterized in that:
The base station of difference in preset range of gain and the sample base station gain in high and low temperature environment of described screening in the high temperature ageing environment comprises:
For up-downgoing gain judgement respectively, during uniform temp, whether the difference of the base station of each base station in high temperature ageing environment gain gain of the base station in high and low temperature environment with the sample base station is in preset range, as long as the difference of a chronotherm calculation is arranged not in preset range, thinks that the gain temperature characterisitic of this base station changes;
Described each base station is identical with the hardware circuit of sample base station.
12. method as claimed in claim 6 is characterized in that:
The described calibration comprises: when normal temperature is calibrated each frequency, record the temperature value of base station zones of different, the fiducial temperature regional as each using this temperature value.
13. the Temperature compensation for gain method of a base station comprises:
Call Temperature compensation for gain table corresponding to each zone according to base station zones of different current operating temperature, obtain respectively initial gain temperature compensation value corresponding to each zone;
According to current frequency, corresponding each regional fiducial temperature of base station is called Temperature compensation for gain table corresponding to each zone, obtains respectively benchmark Temperature compensation for gain value corresponding to each zone;
The difference of each regional initial gain temperature compensation value of calculation base station and this regional benchmark Temperature compensation for gain value, regional Temperature compensation for gain value as each;
Each regional Temperature compensation for gain value addition of base station is obtained to the Temperature compensation for gain value of whole base station, by the Temperature compensation for gain value of this base station to the base station temperature characteristic compensation that gained.
14. method as claimed in claim 13 is characterized in that:
The base station zones of different comprises veneer zone and power amplifier zone.
15. method as claimed in claim 14 is characterized in that:
Preserve each each self-corresponding gain variations in temperature relation of zone in the Temperature compensation for gain table of described each zone correspondence.
16. method as claimed in claim 15 is characterized in that:
Described each each self-corresponding gain variations in temperature relation of zone obtains in the following ways, comprising:
The sample base station is placed in to high and low temperature environment and carries out temperature cycles, every the first Preset Time, base station the second detection power that the power meter that obtain base station the first detection power that the computer that connects sample base station network interface reads, connects sample base station transceiver interface records, and the temperature value of sample inside of base station veneer, the temperature value of power amplifier, the difference that the base station gain is this base station first detection power and base station the second detection power;
Veneer in the sample base station is placed in to high and low temperature environment and carries out temperature cycles, every the 3rd Preset Time, obtain the temperature value of veneer, veneer the first detection power that the computer of connecting single board network interface reads, veneer the second detection power that the frequency spectrograph of connecting single board transmitting-receiving interface records, the difference that the veneer gain is this veneer first detection power and veneer the second detection power;
The gain variations in temperature relation in described veneer zone comprises veneer temperature value and veneer gain corresponding to each temperature value; The power amplifier zone is the difference that at this temperature, gain in base station and veneer gains in the gain of certain temperature, and the gain variations in temperature relation in described power amplifier zone comprises power amplifier temperature value and power amplifier gain corresponding to each temperature value.
17., as claim 13 or 14 or 15 or 16 described methods, it is characterized in that:
Each regional fiducial temperature of described base station is each the regional temperature value of base station recorded when normal temperature calibration frequency, the base station that described each base station does not change for the gain temperature characterisitic, i.e. the base station of difference in preset range of the gain in the high temperature ageing environment and the sample base station gain in high and low temperature environment.
18. method as claimed in claim 17 is characterized in that:
The determination methods whether the gain temperature characterisitic changes comprises:
For up-downgoing gain judgement respectively, during uniform temp, whether the difference of the base station of each base station in high temperature ageing environment gain gain of the base station in high and low temperature environment with the sample base station is in preset range, as long as the difference of a chronotherm calculation is arranged not in preset range, thinks that the gain temperature characterisitic of this base station changes;
Described each base station is identical with the hardware circuit of sample base station.
19. method as claimed in claim 13 is characterized in that:
Described Temperature compensation for gain method is periodically carried out.
20. a device of realizing Temperature compensation for gain, comprise, initial gain temperature compensation value acquisition module, benchmark Temperature compensation for gain value acquisition module, Temperature compensation for gain value computing module and compensating module, wherein:
Described initial gain temperature compensation value acquisition module, for call Temperature compensation for gain table corresponding to each zone according to base station zones of different current operating temperature, obtain respectively initial gain temperature compensation value corresponding to each zone;
Described benchmark Temperature compensation for gain value acquisition module, call Temperature compensation for gain table corresponding to each zone for each regional fiducial temperature of the base station corresponding according to current frequency, obtains respectively benchmark Temperature compensation for gain value corresponding to each zone;
Described Temperature compensation for gain value computing module, for the difference of each regional initial gain temperature compensation value of calculation base station and this regional benchmark Temperature compensation for gain value, regional Temperature compensation for gain value as each;
Described compensating module, for each regional Temperature compensation for gain value addition of base station being obtained to the Temperature compensation for gain value of whole base station, by the Temperature compensation for gain value of this base station to the base station temperature characteristic compensation that gained.
21. device as claimed in claim 20 is characterized in that:
The base station zones of different comprises veneer zone and power amplifier zone.
22. device as claimed in claim 21 is characterized in that:
Preserve each each self-corresponding gain variations in temperature relation of zone in the Temperature compensation for gain table of described each zone correspondence.
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| CN201210179125.6A CN103458447B (en) | 2012-06-01 | 2012-06-01 | A kind of base station Temperature compensation for gain, calibration and verification method and compensation device |
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| CN104901751A (en) * | 2015-05-07 | 2015-09-09 | 深圳市鼎阳科技有限公司 | Temperature compensation method and device for radio frequency equipment |
| CN107426743A (en) * | 2016-05-23 | 2017-12-01 | 中兴通讯股份有限公司 | A kind of base station calibration method, apparatus, base station and communication system |
| CN112867042A (en) * | 2020-12-31 | 2021-05-28 | 京信网络系统股份有限公司 | Gain control method, device, base station and storage medium |
| CN114499710A (en) * | 2022-04-02 | 2022-05-13 | 成都爱瑞无线科技有限公司 | Background noise change measuring method, background noise change measuring device, background noise change measuring system, electronic device, and storage medium |
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| CN104901751A (en) * | 2015-05-07 | 2015-09-09 | 深圳市鼎阳科技有限公司 | Temperature compensation method and device for radio frequency equipment |
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| CN112867042B (en) * | 2020-12-31 | 2023-05-16 | 京信网络系统股份有限公司 | Gain control method, device, base station and storage medium |
| CN114499710A (en) * | 2022-04-02 | 2022-05-13 | 成都爱瑞无线科技有限公司 | Background noise change measuring method, background noise change measuring device, background noise change measuring system, electronic device, and storage medium |
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| CN103458447B (en) | 2018-05-25 |
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