CN107426743B - Base station calibration method, device, base station and communication system - Google Patents
Base station calibration method, device, base station and communication system Download PDFInfo
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Abstract
The invention discloses a base station calibration method, a base station calibration device, a base station and a communication system, wherein the method comprises the following steps: acquiring a system difference value between a current system and a standard system; calling a standard calibration table of a standard system; and determining a calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrating the base station by using the calibration parameter of the current system. By implementing the method and the device, when the base station works, calibration parameters of the current system can be determined according to the system difference value and the standard calibration table by acquiring the system difference value of the current system and the standard system, the base station only needs to calibrate the working system serving as the standard system to obtain the calibration table of the corresponding system, and based on the system difference value between different systems determined when the base station leaves a factory and the standard calibration table, calibration of all systems can be realized, so that the problem that the existing base station needs to calibrate all systems respectively to obtain the calibration tables of the corresponding systems is solved.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a base station calibration method, a base station calibration device, a base station and a communication system.
Background
With the development of Mobile communication technology, multi-mode radio remote stations such as GSM (Global System for Mobile Communications), umts (Universal Mobile telecommunications Association), CDMA (Code Division Multiple Access), FDD LTE ((Long Term Evolution technology for Frequency Division duplex) and the like have become a trend, and the same radio remote station can work in a single mode, such as GSM single mode and TDD LTE single mode, and can also work in a mixed mode, such as GSM/FDD LTE mixed mode.
For such a multi-system base station, in the prior art, calibration tables of different systems are generated by traversing the multiple systems, so that calibration of the multiple systems at different power levels is realized on the same hardware; and when the base station works, calling the corresponding calibration table to compensate according to the actual working system.
In the process of performing the present invention, the inventor of the present invention finds that, while the prior art meets the requirements of the 3GPP protocol, the radio frequency power index meets the requirements of system design, and all systems need to be calibrated respectively to obtain calibration tables of corresponding systems, which results in that: the production calibration cost is high, one calibration flow is added when each system is added, and the system increase is inversely proportional to the calibration efficiency; the method has no expansibility, and when a new formula is required, the new formula needs to be recalibrated.
In view of the foregoing problems, a need exists in the art to provide a method for calibrating a base station, so as to solve a problem that an existing base station needs to calibrate all systems respectively to obtain calibration tables of corresponding systems.
Disclosure of Invention
The embodiment of the invention provides a base station calibration method, a base station calibration device, a base station and a communication system, and at least one embodiment of the invention is used for solving the problem that the existing base station needs to calibrate all systems respectively to obtain calibration tables of corresponding systems.
In one aspect, a base station calibration method is provided, including: acquiring a system difference value between a current system and a standard system; calling a standard calibration table of a standard system; and determining a calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrating the base station by using the calibration parameter of the current system.
In another aspect, a base station calibration apparatus is provided, including: the acquisition module is used for acquiring a system difference value between a current system and a standard system; the calling module is used for calling a standard calibration table of a standard system; and the calibration module is used for determining the calibration parameters of the current system according to the system difference values and the standard calibration table and calibrating the base station by using the calibration parameters of the current system.
In another aspect, a base station calibration apparatus is provided, including: the processing module is used for acquiring a system difference value between a current system and a standard system, calling a standard calibration table of the standard system, and determining a calibration parameter of the current system according to the system difference value and the standard calibration table; and the communication module is used for calibrating by using the calibration parameters of the current system.
In another aspect, a base station is provided, including: a processor, a radio frequency device and a memory; the memory is used for storing application programs corresponding to at least two radio frequency systems; the processor is used for reading the application program corresponding to the current system from the memory and controlling the radio frequency device to work in the current system; the memory is used for storing a standard calibration table of a standard system; the processor is used for acquiring the system difference value between the current system and the standard system, calling the standard calibration table of the standard system, determining the calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrating the radio frequency device by using the calibration parameter of the current system.
In another aspect, a communication system is provided, including: at least one embodiment of the present invention provides a base station.
In another aspect, a computer storage medium is provided, in which computer executable instructions are stored, and the computer executable instructions are used for executing the foregoing base station calibration method.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a base station, which can determine a calibration parameter of a current system according to a system difference value and a standard calibration table by acquiring the system difference value of the current system and the standard system when the base station works, so that the base station only needs to calibrate a working system serving as the standard system to obtain the calibration table of a corresponding system, and uses the calibration table as the standard calibration table, and based on the system difference value between different systems determined when the base station leaves a factory and the standard calibration table, calibration of all systems can be realized, and the problem that the existing base station needs to calibrate all systems respectively to obtain the calibration tables of the corresponding systems is solved.
Drawings
Fig. 1 is a flowchart of a base station calibration method according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a base station calibration apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base station calibration apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base station according to a fourth embodiment of the present invention;
FIG. 5 is a schematic diagram of a remote radio base station gain calibration;
fig. 6 is a flowchart of a base station calibration method according to a fifth embodiment of the present invention;
fig. 7 is a flowchart of another base station calibration method according to a fifth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention will now be further explained by means of embodiments in conjunction with the accompanying drawings.
The first embodiment:
fig. 1 is a flowchart of a base station calibration method according to a first embodiment of the present invention, and as can be seen from fig. 1, in this embodiment, the base station calibration method according to the present invention includes the following steps:
s1: acquiring a system difference value between a current system and a standard system;
in all embodiments of the present invention, the standard mode refers to any one of multiple working modes that the existing base station has, such as GSM/UMTA/CDMA/FDD LTE, and the standard mode refers to any one of multiple modes, and in practical application, the standard mode can be selected according to the need, such as selecting a commonly used GSM mode; the non-standard system refers to any one of all other systems except the standard system in the multiple systems; the current mode refers to the mode in which the base station works currently.
The gain frequency characteristic refers to a characteristic that the gain of a radio frequency device of the base station changes along with the frequency change, and aiming at the characteristic, gain frequency compensation is needed to be carried out, so that the uplink and downlink gains of the base station are within a set range, and production calibration can complete the function aiming at each base station. Aiming at a multi-system base station, under the same hardware architecture, the same radio remote base station can work under a single mode and a mixed molding mode through modes of radio frequency device differential configuration, software differential configuration processing and the like. In practical application, the radio frequency device of the same base station does not change, and then the gain frequency characteristic of the radio frequency device does not change, so that the system difference values related to all the embodiments of the present invention are introduced by software differentiation configuration processing of different systems, and therefore, the system difference values between different systems do not change along with the change of working parameters such as the working temperature and the working frequency of the radio frequency device, which is the basis for implementing the present invention. For example, in an embodiment of the present invention, when the system 1 and the system 2 have the same working parameter, such as 30 ℃ and 1825MHZ, the difference between the gain compensation parameters is used as the system difference value between the system 1 and the system 2, and the system difference value is the same when the other working parameter, such as 40 ℃ and 1800MHZ, is the same, so that the gain compensation parameter of the system 2 can be calculated according to the gain compensation parameter and the system difference value of the system 1 when the working parameter is 40 ℃ and 1800 MHZ.
S2: calling a standard calibration table of a standard system;
for example, if the standard format in step S1 is GSM, the standard calibration table refers to a calibration table with the base station operating format being GSM, and generally includes a temperature calibration table and a frequency calibration table.
S3: determining a calibration parameter of the current system according to the system difference value and a standard calibration table, and calibrating the base station by using the calibration parameter of the current system; how to calculate is already described in step S1 for simplicity, and is not described in detail.
It is anticipated that step S1 and step S2 shown in fig. 1 do not have a sequential order, and may be executed in parallel, or one step may be arbitrarily selected to be executed first.
The embodiment of the invention provides a base station calibration method, which can determine calibration parameters of a current system according to a system difference value and a standard calibration table by acquiring the system difference value of the current system and the standard system when working, so that a base station only needs to calibrate a working system serving as the standard system to obtain the calibration table of a corresponding system, the calibration table is used as the standard calibration table, and calibration of all systems can be realized based on the system difference value between different systems determined when the base station leaves a factory and the standard calibration table, and the problem that the existing base station needs to calibrate all systems respectively to obtain the calibration tables of the corresponding systems is solved.
In order to provide a specific obtaining method for step S1 in the embodiment shown in fig. 1, in some embodiments, the obtaining of the system difference value between the current system and the standard system in the embodiment includes: and obtaining a current calibration correlation value of the current system and a standard calibration correlation value of the standard system, and calculating a system difference value between the current system and the standard system according to the current calibration correlation value and the standard calibration correlation value. In the embodiment, the system difference value is calculated in real time, so that the calculation result is more accurate.
In order to provide a specific obtaining method for step S1 in the embodiment shown in fig. 1, in some embodiments, the obtaining of the system difference value between the current system and the standard system in the embodiment includes: calling a system difference value table, wherein the system difference value table comprises at least one system difference value of a non-standard system and a standard system; and searching a non-standard system corresponding to the current system, and taking the system difference value corresponding to the searched non-standard system as the system difference value between the current system and the standard system. In the embodiment, the system difference values of all the non-standard systems and the standard systems are calculated in advance and stored, so that the calibration can be performed quickly when the systems are switched subsequently.
Bearing in mind the above embodiment, in some embodiments, the method of the above embodiment further comprises: acquiring all systems supported by a base station, selecting one system as a standard system, and using other systems as non-standard systems; under the same working parameters, acquiring calibration correlation values of all systems; and calculating the standard difference value of the non-standard system and the standard system according to the calibration correlation value of the non-standard system and the calibration correlation value of the standard system.
In some embodiments, the calibration related values in all the embodiments include instrument measurement power and software reported power, and the calculating the system difference value includes: when the same working parameters are called, the instrument measurement power PantM and the software report power IfTsM of a non-standard system or a current system, the instrument measurement power PantB and the software report power IfTsB of a standard system, and a system difference value is calculated by using a formula system difference value delta (PantM-IfTsM) - (PantB-IfTsB).
In some embodiments, the determining the calibration parameter of the current format according to the format difference value and the standard calibration table in the embodiment shown in fig. 1 includes: and acquiring working parameters of the mechanism under the current system, matching calibration parameters in a standard calibration table according to the working parameters, and summing and calculating the matched calibration parameters and the system difference values to obtain the calibration parameters of the current system.
Second embodiment:
fig. 2 is a schematic structural diagram of a base station calibration apparatus according to a second embodiment of the present invention, and as can be seen from fig. 2, in this embodiment, the base station calibration apparatus according to the present invention includes:
an obtaining module 21, configured to obtain a system difference value between a current system and a standard system;
the calling module 22 is used for calling a standard calibration table of a standard system;
and the calibration module 23 is configured to determine a calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrate the base station by using the calibration parameter of the current system.
In some embodiments, the obtaining module 21 in the embodiments is configured to obtain a current calibration correlation value of a current system and a standard calibration correlation value of a standard system, and calculate a system difference value between the current system and the standard system according to the current calibration correlation value and the standard calibration correlation value.
In some embodiments, the obtaining module 21 in the above embodiments is configured to call a system difference value table, where the system difference value table includes at least one system difference value between a non-standard system and a standard system; and searching a non-standard system corresponding to the current system, and taking the system difference value corresponding to the searched non-standard system as the system difference value between the current system and the standard system.
In some embodiments, the obtaining module 21 in the above embodiments is further configured to obtain all systems supported by the base station, select one system as a standard system, and use other systems as non-standard systems; under the same working parameters, acquiring calibration correlation values of all systems; and calculating the standard difference value of the non-standard system and the standard system according to the calibration correlation value of the non-standard system and the calibration correlation value of the standard system.
In some embodiments, the obtaining module 21 in the embodiments is configured to, when the same operating parameter is called, calculate a system difference value using a formula system difference value Δ ═ between (pantom-IfTssiM) - (pantob-IfTssiB), where the nonstandard system or current system instrument measurement power pantom and the software report power IfTssiM, and the standard system instrument measurement power pantotb and the software report power IfTssiB.
In some embodiments, the calibration module 23 in the above embodiments is configured to obtain a working parameter of the mechanism in the current system, match the calibration parameter in the standard calibration table according to the working parameter, and sum the matched calibration parameter and the system difference value to obtain the calibration parameter of the current system.
In order to implement the solution of the embodiment shown in fig. 2, an embodiment of the present invention provides a base station, which includes a processor, and the processor is configured to implement the functions of all the functional modules in fig. 2.
The third embodiment:
fig. 3 is a schematic structural diagram of a base station calibration apparatus according to a third embodiment of the present invention, and as can be seen from fig. 3, in this embodiment, the base station calibration apparatus according to the present invention includes:
the processing module 31 is configured to obtain a system difference value between a current system and a standard system, call a standard calibration table of the standard system, and determine a calibration parameter of the current system according to the system difference value and the standard calibration table;
and the communication module 32 is used for calibrating by using the calibration parameters of the current system.
In some embodiments, the processing module 31 in the embodiments is configured to obtain a current calibration correlation value of a current system and a standard calibration correlation value of a standard system, and calculate a system difference value between the current system and the standard system according to the current calibration correlation value and the standard calibration correlation value.
In some embodiments, the processing module 31 in the above embodiments is configured to call a system difference value table, where the system difference value table includes at least one system difference value between a non-standard system and a standard system; and searching a non-standard system corresponding to the current system, and taking the system difference value corresponding to the searched non-standard system as the system difference value between the current system and the standard system.
In some embodiments, the processing module 31 in the above embodiments is further configured to obtain all systems supported by the base station, select one system as a standard system, and use other systems as non-standard systems; under the same working parameters, acquiring calibration correlation values of all systems; and calculating the standard difference value of the non-standard system and the standard system according to the calibration correlation value of the non-standard system and the calibration correlation value of the standard system.
In some embodiments, the processing module 31 in the above embodiments is configured to invoke the non-standard-system or current-system instrument measurement power pantotm and the software report power IfTssiM, and the standard-system instrument measurement power pantotb and the software report power IfTssiB when the same operating parameter is used, and calculate the system difference value using the formula system difference value Δ ═ pantom-IfTssiM) - (pantob-IfTssiB.
In some embodiments, the processing module 31 in the embodiments is configured to obtain a working parameter of the mechanism in the current system, match the calibration parameter in the standard calibration table according to the working parameter, and sum the matched calibration parameter and the system difference value to obtain the calibration parameter of the current system.
In practical applications, all functions of the processing module in the embodiment shown in fig. 3 may be implemented by the CPU of the base station, and the functions of the communication module may be implemented by the radio frequency device of the base station.
The fourth embodiment:
fig. 4 is a schematic structural diagram of a base station according to a fourth embodiment of the present invention, and it can be seen from the fourth embodiment that the base station according to the present invention includes: a processor 41, a radio frequency device 42, and a memory 43; the memory 43 is used for storing application programs corresponding to at least two radio frequency systems; the processor 41 is configured to read an application program corresponding to the current system from the memory, and control the radio frequency device 42 to operate in the current system; the memory 43 is used for storing a standard calibration table of a standard system; the processor 41 is configured to obtain a system difference value between the current system and the standard system, call a standard calibration table of the standard system, determine a calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrate the radio frequency device 42 using the calibration parameter of the current system.
In some embodiments, the memory 43 in the above embodiments is configured to store a current calibration related value of a current system and a standard calibration related value of a standard system, and the processor 41 is configured to obtain the current calibration related value of the current system and the standard calibration related value of the standard system, and calculate a system difference value between the current system and the standard system according to the current calibration related value and the standard calibration related value.
In some embodiments, the memory 43 in the above embodiments is configured to store a system difference value table, where the system difference value table includes at least one system difference value between a non-standard system and a standard system; the processor 41 is configured to call the system difference value table, search for a non-standard system corresponding to the current system, and use the system difference value corresponding to the searched non-standard system as the system difference value between the current system and the standard system.
In some embodiments, the processor 41 in the foregoing embodiments is configured to acquire all systems supported by the base station, select one system as the standard system, and use other systems as non-standard systems; under the same working parameters, acquiring calibration correlation values of all systems; and calculating the system difference value of the non-standard system and the standard system according to the calibration correlation value of the non-standard system and the calibration correlation value of the standard system, and storing the system difference value in the system difference value table in the memory.
In some embodiments, the processor 41 in the above embodiments is configured to call the non-standard-system or current-system instrument measurement power pantotm and the software report power IfTssiM, and the standard-system instrument measurement power pantotb and the software report power IfTssiB when the same operating parameter is used, and calculate the system difference value using the formula system difference value Δ ═ pantom-IfTssiM) - (pantob-IfTssiB.
In some embodiments, the processor 41 in the above embodiments is configured to obtain a working parameter of a mechanism in a current system, match a calibration parameter in the standard calibration table according to the working parameter, and sum and calculate the matched calibration parameter and the system difference value to obtain the calibration parameter of the current system.
Accordingly, the present invention provides, in some embodiments, a communication system comprising: at least one embodiment of the present invention provides a base station.
Accordingly, the present invention provides, in some embodiments, a computer storage medium having stored thereon computer-executable instructions for performing the foregoing base station calibration method.
Fifth embodiment:
the present invention will now be further explained with reference to specific application scenarios.
The technical problem to be solved by the embodiment is as follows: and the calibration target of the multi-standard base station is achieved through the production calibration of a single standard. The embodiment adopts the following technical scheme:
1. selecting one system as a production calibration system, and recording the production calibration system in a calibration table header, for example, selecting a UMTS system;
2. selecting the calibration power of the digital signal in the standard, for example, selecting-19 dbfs;
3. carrying out single-standard calibration;
4. in practical application, gain calibration value conversion is performed: firstly, identifying a current working system, then comparing with the system of a calibration table, if the systems are the same, using a calibration value in the calibration table, and if the systems are different, performing gain calibration value conversion according to the following steps:
1) inquiring digital total power backspacing quantities corresponding to different systems, such as-19 dbfs, through software;
2) querying rated power corresponding to different systems, such as 80W, through software;
3) inquiring digital-to-analog conversion gains corresponding to different systems, such as 10dB, through software;
4) inquiring corresponding radio frequency attenuation values of different systems, such as-6 dB through software;
5) calculating delta values of system differences through a formula, and compensating the delta values into a radio frequency link to achieve the aim of base station calibration;
by adopting the method of the embodiment, the improvement of the calibration technology is achieved, the production calibration flow is unified, the production efficiency is improved, and the labor cost and the time cost are saved.
Specifically, taking the transmit link power calibration as an example, a specific calculation method is given, and this analysis method is also applicable to other link calibrations, and the present invention is described in detail with reference to fig. 5, 6, and 7.
Scene 1: as shown in fig. 6, the base station calibration method provided in this embodiment includes the following steps:
s61: and selecting a standard mode and obtaining a standard calibration table.
Selecting a UMTS system as a standard system, determining a calibration method, and calculating the gain calibration of a transmitting link by adopting a formula 1.
Equation 1: and TxGain (dB) Pant (dBm) -IfTssi (dBm), wherein Pant is an instrument measurement power value, and IfTssi is a software reported power value.
The base station is configured firstly, so that the base station works in a calibration mode, and the gain of the transmitting link is adjusted through gain compensation, so that the output power of the transmitting link is in a stable range at different frequency points and different temperatures, and the radio frequency performance requirement is met. Then, a temperature calibration table and a frequency compensation calibration table are generated by traversing the temperature and frequency sampling points by using the calibration method of formula 1. The method comprises the following specific steps:
firstly, temperature calibration is carried out, and the flow is as follows: selecting a certain frequency point supported by a radio remote base station, such as 1825 MHZ; and calculating gain values of power input and output at different temperatures by taking 0.5 ℃ as stepping through the change of the environmental temperature to generate a standard temperature calibration table.
Secondly, frequency calibration is carried out, and the process is as follows: selecting the working temperature of a certain radio remote base station, for example, 40 ℃; and calculating gain values of power input and output at different frequency points by replacing the frequency points and taking 200KHZ as stepping to generate a standard frequency calibration table.
S63: and determining a current system, and calculating a system difference value between the current system and the standard system.
And determining the current system, judging whether the current system is a standard system, if so, executing a standard calibration table for calibration, and if not, calculating the system difference value between the current system and the standard system.
Calculating the system difference value between the current system and the standard system comprises the following steps:
step 1, identifying gain change points:
referring to the schematic diagram of the gain calibration of the remote radio base station shown in fig. 5, the meaning is as follows:
a) IfTssi: combined with the total digital power of the carrier, iftssi (dbm) (10 × lg [ (I ^2+ Q ^2)/x0] + x1), records x0 and x1, where x0 is the total digital power back-off, for example-19 dbfs. x1 is rated power, and is determined by the whole machine;
b) txdigtalgain (db): gain at the IQ output of the DAC at the IfTsi detection point;
c) txdacgain (db): the DAC digital-to-analog gain is the same in configuration, and the DacMain is the same in configuration;
d) txattvalue (db): the attenuation amount of Datt of a transmitting path in calibration;
and 2, identifying the TxGain and the corresponding setting value under the calibration system by combining the formula 1:
a)IfTssi(dBm)(cal)＝(10*lg[(I^2+Q^2)/x0]+x1)(cal)；
b)Pant(dBm)(cal)＝10*lg(I^2+Q^2)+DigitalGain(cal)+DacGain(cal)+TxDattAttValue(cal)；
c)TxGAin(cal)＝IfTssi(dBm)(cal)-Pant(dBm)(cal)＝{(10*lg[1/x0]+x1)(cal)}-{DigitalGain(cal)+DacGain(cal)+TxDattAttValue(cal)}；
and 3, identifying Txgain (new) and a corresponding set value under the current system by combining the formula 1:
a)IfTssi(dBm)(new)＝(10*lg[(I^2+Q^2)/x0]+x1)(new)；
b)Pant(dBm)(new)＝10*lg(I^2+Q^2)+DigitalGain(new)+DacGain(new)+TxDattAttValue(new)；
c)TxGain(new)＝IfTssi(dBm)(new)-Pant(dBm)(new)＝{(10*lg(1/x0)+x1(new))}-{DigitalGain(new)+DacGain(new)+TxDattAttValue(new)}；
step 4, combining the formula 2, calculating a system difference value delta between the current system and the standard system;
equation 2:
Δ＝TxGain(new)-TxGain(cal)
＝{DigitalGain-DigitalGain(new)}+{DacGain-DacGain(new)}+{Datt-TxDattAttValue(new)}+{(10*lg(1/x0)+x1)(new)-(10*lg[1/x0]+x1)(cal)}；
wherein digitalgain (new), dacgain (new), txdat value (new), 10 × lg (1/x0) + x1 (new) are known values, and the variables are fixed values after the system design is completed.
S65: determining the working parameters of the current system, calling a standard calibration table, and calculating the gain calibration value of the current system;
searching a corresponding gain calibration value TxGain (B) in a standard calibration table according to working parameters of the current system, such as temperature and frequency, and calculating the gain calibration value TxGain (M) of the current system by using a formula 3;
equation 3: txgain (m) ═ txgain (b) + Δ;
s67: calibrating a transmitting link according to the gain calibration value of the current system;
the calibration involved in this step is a common calibration process, and is not described again.
Scene 2: as shown in fig. 7, the base station calibration method provided in this embodiment includes the following steps:
s71: and selecting a standard mode and obtaining a standard calibration table.
Selecting a UMTS system as a standard system, determining a calibration method, and calculating the gain calibration of a transmitting link by adopting a formula 1.
Equation 1: and TxGain (dB) Pant (dBm) -IfTssi (dBm), wherein Pant is an instrument measurement power value, and IfTssi is a software reported power value.
The base station is configured firstly, so that the base station works in a calibration mode, and the gain of the transmitting link is adjusted through gain compensation, so that the output power of the transmitting link is in a stable range at different frequency points and different temperatures, and the radio frequency performance requirement is met. Then, a temperature calibration table and a frequency compensation calibration table are generated by traversing the temperature and frequency sampling points by using the calibration method of formula 1. The method comprises the following specific steps:
firstly, temperature calibration is carried out, and the flow is as follows: selecting a certain frequency point supported by a radio remote base station, such as 1825 MHZ; and calculating gain values of power input and output at different temperatures by taking 0.5 ℃ as stepping through the change of the environmental temperature to generate a standard temperature calibration table.
Secondly, frequency calibration is carried out, and the process is as follows: selecting the working temperature of a certain radio remote base station, for example, 40 ℃; and calculating gain values of power input and output at different frequency points by replacing the frequency points and taking 200KHZ as stepping to generate a standard frequency calibration table.
S73: and calculating the system difference values of all the non-standard systems and the standard systems to form a system difference value table.
In this step, for all non-standard systems, the system difference value from the standard system needs to be calculated, and the calculation process, such as the content of step S63 in the embodiment shown in fig. 6, is not repeated; forming a table of difference values, in some embodiments, the table of difference values is shown in table 1 below:
TABLE 1
S75: and determining the current system, and searching the system difference value between the current system and the standard system.
Determining a current system, judging whether the current system is a standard system, if so, directly calling a standard calibration table for calibration, and if not, searching a system difference value between the current system and the standard system in the table 1.
S77: determining the working parameters of the current system, calling a standard calibration table, and calculating the gain calibration value of the current system;
searching a corresponding gain calibration value TxGain (B) in a standard calibration table according to working parameters of the current system, such as temperature and frequency, and calculating the gain calibration value TxGain (M) of the current system by using a formula 3;
s79: calibrating a transmitting link according to the gain calibration value of the current system;
the calibration involved in this step is a common calibration process, and is not described again.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In summary, through the implementation of the present invention, at least one embodiment has the following beneficial effects:
when the base station works, the calibration parameters of the current system can be determined according to the system difference value and the standard calibration table by acquiring the system difference value of the current system and the standard system, so that the base station only needs to calibrate the working system serving as the standard system to acquire the calibration table of the corresponding system, the calibration table is used as the standard calibration table, and the calibration of all systems can be realized based on the system difference value between different systems determined when the base station leaves a factory and the standard calibration table, thereby solving the problem that the existing base station needs to calibrate all systems respectively to acquire the calibration tables of the corresponding systems.
The above embodiments are only examples of the present invention, and are not intended to limit the present invention in any way, and any simple modification, equivalent change, combination or modification made by the technical essence of the present invention to the above embodiments still fall within the protection scope of the technical solution of the present invention.
Claims (14)
1. A base station calibration method, comprising:
obtaining a system difference value of the current system and any standard system in the same working parameter, wherein the working parameter at least comprises: frequency and temperature;
calling a standard calibration table of the standard system;
and determining a calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrating the corresponding working parameter of the base station by using the calibration parameter of the current system.
2. The base station calibration method according to claim 1, wherein said obtaining a standard format difference value between a current format and a standard format comprises: the method comprises the steps of obtaining a current calibration correlation value of a current system and a standard calibration correlation value of a standard system, and calculating a system difference value between the current system and the standard system according to the current calibration correlation value and the standard calibration correlation value.
3. The base station calibration method according to claim 1, wherein said obtaining a standard format difference value between a current format and a standard format comprises: calling a system difference value table, wherein the system difference value table comprises at least one system difference value of a non-standard system and a standard system; and searching a non-standard system corresponding to the current system, and taking the system difference value corresponding to the searched non-standard system as the system difference value between the current system and the standard system.
4. The base station calibration method of claim 3, further comprising: acquiring all systems supported by the base station, selecting one system as the standard system, and using other systems as non-standard systems; under the same working parameters, acquiring calibration correlation values of all systems; and calculating the standard difference value of the non-standard system and the standard system according to the calibration correlation value of the non-standard system and the calibration correlation value of the standard system.
5. The base station calibration method according to claim 2 or 4, wherein the calibration related values include instrument measurement power and software reported power, and the calculating the system difference value includes: when the same working parameters are called, the instrument measurement power PantM and the software report power IfTsM of a non-standard system or a current system, and the instrument measurement power PantB and the software report power IfTsB of a standard system are used, and the system difference value is calculated by using a formula system difference value delta (PantM-IfTsM) - (PantB-IfTsB).
6. The base station calibration method according to any one of claims 1 to 4, wherein the determining the calibration parameter of the current standard according to the standard difference value and the standard calibration table comprises: and acquiring working parameters of a mechanism under the current system, matching calibration parameters in the standard calibration table according to the working parameters, and summing and calculating the matched calibration parameters and the system difference values to obtain the calibration parameters of the current system.
7. A base station calibration apparatus comprising:
an obtaining module, configured to obtain a system difference value between a current system and any standard system at a same working parameter, where the working parameter at least includes: frequency and temperature;
the calling module is used for calling a standard calibration table of the standard system;
and the calibration module is used for determining the calibration parameters of the current system according to the system difference values and the standard calibration table and calibrating the corresponding working parameters of the base station by using the calibration parameters of the current system.
8. A base station calibration apparatus comprising:
a processing module, configured to obtain a system difference value between a current system and any standard system at the same working parameter, where the working parameter at least includes: frequency and temperature, calling a standard calibration table of the standard system, and determining calibration parameters of the current system according to the system difference value and the standard calibration table;
and the communication module is used for calibrating the corresponding working parameters by using the calibration parameters of the current system.
9. A base station, comprising: a processor, a radio frequency device and a memory; the memory is used for storing application programs corresponding to at least two radio frequency systems; the processor is used for reading an application program corresponding to the current system from the memory and controlling the radio frequency device to work in the current system; wherein the content of the first and second substances,
the memory is used for storing a standard calibration table of a standard system;
the processor is configured to obtain a system difference value between a current system and any standard system at the same working parameter, where the working parameter at least includes: and frequency and temperature, calling a standard calibration table of the standard system, determining a calibration parameter of the current system according to the system difference value and the standard calibration table, and calibrating the corresponding working parameter of the radio frequency device by using the calibration parameter of the current system.
10. The base station of claim 9, wherein the memory is configured to store a current calibration correlation value of a current standard and a standard calibration correlation value of a standard, and the processor is configured to obtain the current calibration correlation value of the current standard and the standard calibration correlation value of the standard, and calculate a standard difference value between the current standard and the standard according to the current calibration correlation value and the standard calibration correlation value.
11. The base station of claim 9, wherein the memory is configured to store a system difference value table, the system difference value table comprising at least one system difference value between a non-standard system and a standard system; the processor is configured to call the system difference value table, search for a non-standard system corresponding to the current system, and use the searched system difference value corresponding to the non-standard system as the system difference value between the current system and the standard system.
12. The base station of claim 11, wherein the processor is configured to obtain all standards supported by the base station, select one standard as the standard, and use other standards as non-standard standards; under the same working parameters, acquiring calibration correlation values of all systems; and calculating the system difference value of the non-standard system and the standard system according to the calibration correlation value of the non-standard system and the calibration correlation value of the standard system, and storing the system difference value in the system difference value table in the memory.
13. The base station according to any of claims 9 to 12, wherein the processor is configured to obtain a working parameter of a mechanism in a current system, match a calibration parameter in the standard calibration table according to the working parameter, and sum the matched calibration parameter and the system difference value to obtain the calibration parameter of the current system.
14. A communication system, comprising: at least one base station according to any one of claims 9 to 13.
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| US8320903B2 (en) * | 2005-09-07 | 2012-11-27 | Samsung Electronics Co., Ltd. | Method and system for calibrating multiple types of base stations in a wireless network |
| EP2002577B1 (en) * | 2006-04-06 | 2013-03-13 | Wavecom | Method of initialising an electronic radio communication module, method of compressing and decompressing calibration parameters, corresponding computer programme product and storage means |
| WO2010099202A2 (en) * | 2009-02-24 | 2010-09-02 | Eamonn Gormley | Dynamic temperature calibration of a frequency reference |
| CN101808396B (en) * | 2010-03-24 | 2014-04-16 | 华为技术有限公司 | Power sharing method and base station |
| CN201830460U (en) * | 2010-09-03 | 2011-05-11 | 中国移动通信集团公司 | Base station calibrating device and base station |
| CN103458447B (en) * | 2012-06-01 | 2018-05-25 | 中兴通讯股份有限公司 | A kind of base station Temperature compensation for gain, calibration and verification method and compensation device |
| CN104753615B (en) * | 2013-12-25 | 2018-03-23 | 联芯科技有限公司 | The RF calibration method of multimode multi-frequency scheme |
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