CN102324991A - Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band - Google Patents
Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band Download PDFInfo
- Publication number
- CN102324991A CN102324991A CN201110234513A CN201110234513A CN102324991A CN 102324991 A CN102324991 A CN 102324991A CN 201110234513 A CN201110234513 A CN 201110234513A CN 201110234513 A CN201110234513 A CN 201110234513A CN 102324991 A CN102324991 A CN 102324991A
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- calibration
- portable terminal
- parameter
- signal line
- line loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for calibrating a mobile terminal to transmit power in global system for mobile communication (GSM) frequency band; a calibration system sets a benchmark signal path and benchmark radio frequency signal line loss of a corresponding working frequency band, and the radio frequency parameters of the mobile terminal; the mobile terminal continuously outputs a series of different power signals; a base station emulator of the calibration system reads and stores the corresponding parameters of all power signals; the corresponding radio frequency signal line loss of the next signal path of the corresponding working frequency band is set; the calibration system sets the radio frequency parameters of the mobile terminal; the mobile terminal continuously outputs a series of different power signals; and the base station emulator reads and stores the corresponding parameters of all the power signals. The invention can set different target power to different signal paths, and improves the calibration accuracy and provides convenience for the debugging of a cell phone antenna by setting the corresponding radio frequency signal line loss, and is an extremely great progress of the prior art.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method of calibrating portable terminal emission GSM frequency band power.
Background technology
The frequency range that present portable terminal is supported is more and more, and develops towards small and exquisite frivolous direction, can bring bigger challenge for the design of antenna for mobile phone.Meanwhile, in order to promote user experience, increase network capacity and efficient, operator and user require also increasingly high to the antenna performance of portable terminal.Under the pincer attack of the requirement aspect above-mentioned two, the Antenna Design more and more difficult of portable terminal.
The passive S11 figure of a typical antenna, as shown in Figure 1, can be obvious draw in the identical frequency range, the performance of different channels antenna is different.With the GSM850 frequency range is example, and low channel CH128 dominant frequency is 824.2MHz, and high channel CH251 dominant frequency is 848.8MHz.If conducted power all is made as the same, (Over The Air: (Total Radiated Power: there total radiant power) must have height to have to be low for the TRP air download) for OTA.In order to guarantee that all channels all reach standard, the TRP of the reasonable channel of antenna performance (as among Fig. 1 being the CH251 channel) will inevitably be than higher.This SAR for CH251 (Specific Absorption Rate: absorption rate) and HAC (Hearing Aids Compatibility: the compatibility immunity to interference of the electromagnetic compatibility of hearing aids) very the difficulty.
Existing solution is requirement antenna adjustment antenna model and antenna match, comes to even up by force the TRP of different channels.The difficulty of this way meeting enhance antenna debugging.And on some mobile-terminal platforms,, this type of function is not provided like high-pass platform.That is to say that the target power of the different channels of similar frequency bands must be made as equal values, caused its calibration efficiency lower, the accuracy of calibration is relatively poor.
As shown in Figure 2; It is typical calibration frame in the prior art; Portable terminal links to each other through serial ports or USB with computer; Computer also links to each other with base station emulator (typical case has CMU200 or Agilent8960 etc.) through gpib interface simultaneously, and controls base station emulator and read the signal that base station emulator records through this interface; Its typical calibration of power flow process is substantially as follows:
The calibration system command terminal gets into calibration mode;
The calibration system command terminal gets into certain working frequency range, like the GSM850 channel;
Calibration system order base station emulator (typical case has CMU200 or Agilent8960 etc.) gets into test pattern;
Fixing rf signal line loss (loss of different operating frequency range is different) is set;
Some platform (like high-pass platform); The radio frequency parameter that calibration system is provided with portable terminal (comprises calibration channel; Emission path power contorl parameters); Command terminal is a series of different capacity signals of output continuously, and the control base station emulator reads Control Parameter, power output data, the phase data of this a series of signal and stores this cover parameter;
Radio frequency parameter and instruction that other platform (like the MTK platform), calibration system are provided with portable terminal transmit the signal power of launching through the base station emulator reading terminals then; If the scope that this power and desired value error are not being set; Revise the radio frequency parameter at terminal and emission once more so, and readout power again; Repeating these steps equates perhaps to differ in the allowed band at default until terminal transmit power and target power; Store this cover radio frequency parameter then;
Calibration system order portable terminal and base station emulator enter into another working frequency range;
Repeat aforesaid operations;
When the calibration of all working frequency range of portable terminal support finishes, store all calibration gained radio frequency parameters in mobile terminal memory, withdraw from calibration then.
Can find out that from above step the radio frequency line loss that the different channels on the same working frequency range uses is the same, has reduced the accuracy of its calibration, can't accurately calibrate the radio frequency parameter of different channels on the same frequency range.
This shows that prior art needs further improvement and develops.
Summary of the invention
The present invention provides a kind of method of calibrating portable terminal emission GSM frequency band power for solving above-mentioned defective of the prior art; Solution can't accurately calibrate different channels on the same frequency range radio frequency parameter, the different channels technical problem of target power separately can not be set; To improve calibration accuracy, make things convenient for the debugging of antenna for mobile phone.
For solving the problems of the technologies described above, the present invention program comprises:
A kind of method of calibrating portable terminal emission GSM frequency band power, it may further comprise the steps:
A, portable terminal get into corresponding working frequency range; Calibration system is provided with the reference channel and the reference RF signal line loss of said corresponding working frequency range; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said portable terminal is a series of different capacity signals of output continuously, and the base station emulator of said calibration system reads and store the corresponding parameter of each power signal;
B, the corresponding radiofrequency signal line loss of said next channel of corresponding working frequency range is set according to said reference RF signal line loss;
C, said calibration system are ordered said next channel of said base station emulator test; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said portable terminal is a series of different capacity signals of output continuously, and said base station emulator reads and store the corresponding parameter of each power signal.
Described calibration steps; Wherein, Said step B comprises that also said corresponding radiofrequency signal line loss is reference signal line loss and radiofrequency signal line loss offset sum, the target power that said radiofrequency signal line loss offset is a reference channel and the target power of said next channel poor.
Described calibration steps wherein, comprises also before the said steps A that portable terminal inserts calibration system, and said portable terminal is a calibration mode.
Described calibration steps; Wherein, Said calibration steps also comprises repeating said steps B and said step C, obtains the corresponding parameter of said corresponding each channel of working frequency range, and said base station emulator stores the corresponding parameter of said corresponding each channel of working frequency range in the said portable terminal into.
Described calibration steps, wherein, radio frequency parameter is calibration channel and emission path energy Control Parameter.
Described calibration steps, wherein, the corresponding parameter among the said step C is Control Parameter, power output parameter and the phase parameter of corresponding power signal.
Described calibration steps, wherein, said calibration steps comprises that also said calibration system orders said base station emulator to calibrate another working frequency range of said portable terminal, repeating said steps A is to said step C.
Described calibration steps, wherein, after said calibration steps comprised that also said calibration system finishes said portable terminal all working frequency range calibration, said calibration system withdrawed from calibration.
The invention provides a kind of method of calibrating portable terminal emission GSM frequency band power; Can different target powers be set to different channels; Through corresponding radiofrequency signal line loss is set, and then realized the different channels of same working channel is accurately calibrated respectively, improved the accuracy of calibration; Having made things convenient for the debugging of antenna for mobile phone, is the very big progress of prior art.
Description of drawings
Fig. 1 is the passive S11 figure of mobile terminal antenna in the prior art.
Fig. 2 is the structure diagram of typical calibration frame in the prior art.
Fig. 3 is the general flow chart of calibration steps among the present invention.
Embodiment
The invention provides a kind of method of calibrating portable terminal emission GSM frequency band power, clearer, clear and definite in order to make the object of the invention, technical scheme and advantage, below will combine accompanying drawing and embodiment, to further explain of the present invention.
The invention provides a kind of method of calibrating portable terminal emission GSM frequency band power, each channel of same working frequency range is provided with corresponding radiofrequency signal line loss, thereby has realized the different channels of same working channel is accurately calibrated respectively.As shown in Figure 3, it mainly may further comprise the steps:
Step 101: portable terminal gets into corresponding working frequency range; Calibration system is provided with the reference channel and the reference RF signal line loss of said corresponding working frequency range; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said portable terminal is a series of different capacity signals of output continuously, and the base station emulator of said calibration system reads and store the corresponding parameter of each power signal;
Step 102: the corresponding radiofrequency signal line loss that said next channel of corresponding working frequency range is set according to said reference RF signal line loss;
Step 103: said calibration system is ordered said next channel of said base station emulator test; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said portable terminal is a series of different capacity signals of output continuously, and said base station emulator reads and store the corresponding parameter of each power signal.
In order further to improve performance of the present invention; Said step 102 comprises that also said corresponding radiofrequency signal line loss is reference signal line loss and radiofrequency signal line loss offset sum, the target power that said radiofrequency signal line loss offset is a reference channel and the target power of said next channel poor.
Further, comprising also before the said step 101 that portable terminal inserts calibration system, said portable terminal is a calibration mode.
Further; Said calibration steps also comprises repeating said steps 102 and said step 103; Obtain the corresponding parameter of said corresponding each channel of working frequency range, said base station emulator stores the corresponding parameter of said corresponding each channel of working frequency range in the said portable terminal into.
Further, radio frequency parameter is calibration channel and emission path energy Control Parameter.
Further, the corresponding parameter in the said step 103 is Control Parameter, power output parameter and the phase parameter of corresponding power signal.
Further, said calibration steps comprises that also said calibration system orders the said base station emulator to calibrate another working frequency range of said portable terminal, and repeating said steps 101 is to said step 103.
Further, after said calibration steps comprised that also said calibration system finishes said portable terminal all working frequency range calibration, said calibration system withdrawed from calibration.
For description the present invention further, existing to use GSM frequency range calibration system to be example, elaborate.
If first value of the NV_GSM_POWER_LEVELS_I of GSM850 is set as 3200, the target power of the maximum power of GSM850 (power grade 5) is exactly 32dBm so, if be made as 3250 so maximum power be exactly 32.5dBm by that analogy.
Suppose that low channel (CH128) target power
that we require the GSM850 channel is 32dBm; High channel (CH251) target power
is 33dBm; Be reference channel wherein with low channel (CH128); Its radiofrequency signal line loss is reference RF signal line loss
; The target power difference of two channels is a radiofrequency signal line loss offset; I.e.
is specific to being exactly 32-33=-1 in this example.Implementation procedure is following so:
A, calibration system order portable terminal get into calibration mode
B, said calibration system order said portable terminal to get into certain working frequency range, and this example is the GSM850 frequency range;
C, said calibration system order base station emulator (the exemplary base station simulator has CMU200 or Agilent8960 etc.) get into test pattern;
D, said calibration system set reference RF signal line loss
, general normal value 0.5dB here;
E, low channel (CH128) is calibrated; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said radio frequency parameter comprises calibration channel and emission path energy Control Parameter; Said calibration system instructs said portable terminal to export a series of different capacity signals continuously simultaneously, and the control base station emulator reads Control Parameter, power output data, the phase data of this a series of signal and stores this cover parameter;
F, said calibration system are provided with the corresponding radiofrequency signal line loss
of said high channel (CH251), here
=0.5dB+ (1)=-0.5dB.
J, high channel (CH251) is calibrated; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said radio frequency parameter comprises calibration channel and emission path energy Control Parameter; Said calibration system instructs said portable terminal to export a series of different capacity signals continuously simultaneously, and the control base station emulator reads Control Parameter, power output data, the phase data of this a series of signal and stores this cover parameter;
All radio frequency parameters that h, said calibration system will be calibrated are stored in the memory of said portable terminal, and then said calibration system withdraws from calibration, promptly accomplishes the calibration to the GSM850 frequency range.
Can know that from above-mentioned algorithm key is said step f, if do not reset the radiofrequency signal line loss, but continue to use normal line loss, high channel (CH251) calibration finishing back target power must be 32dBm so.
And among the present invention in high channel (CH251) calibration process, in order to let base station emulator read the power of 32dBm, the terminal need increase transmitting power.Because base station emulator records performance number
to what calibration system was reported,
promptly arrives the actual power of base station emulator prevention at radio-frequency port here.
lacked 1dB than actual value (0.5dB) now; In order to obtain identical
,
must increase 1dB.
will increase, and the power that sends of said portable terminal also just must increase 1dB.
Can know that from above-mentioned analysis the present invention can accomplish the function that GSM similar frequency bands different channels is made as different target power very easily, improve the accuracy of calibration, make things convenient for the debugging of antenna for mobile phone.
Should be understood that; Above-mentioned description to preferred embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, and those of ordinary skill in the art is under enlightenment of the present invention; Do not breaking away under the scope situation that claim of the present invention protects; Can also make various deformation such as replacement, simple combination, these all fall within protection scope of the present invention, and the scope of asking for protection of the present invention should be as the criterion with accompanying claims.
Claims (8)
1. calibrate the method that portable terminal is launched the GSM frequency band power for one kind, it may further comprise the steps:
A, portable terminal get into corresponding working frequency range; Calibration system is provided with the reference channel and the reference RF signal line loss of said corresponding working frequency range; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said portable terminal is a series of different capacity signals of output continuously, and the base station emulator of said calibration system reads and store the corresponding parameter of each power signal;
B, the corresponding radiofrequency signal line loss of said next channel of corresponding working frequency range is set according to said reference RF signal line loss;
C, said calibration system are ordered said next channel of said base station emulator test; Said calibration system is provided with the radio frequency parameter of said portable terminal; Said portable terminal is a series of different capacity signals of output continuously, and said base station emulator reads and store the corresponding parameter of each power signal.
2. calibration steps according to claim 1; It is characterized in that; Said step B comprises that also said corresponding radiofrequency signal line loss is reference signal line loss and radiofrequency signal line loss offset sum, the target power that said radiofrequency signal line loss offset is a reference channel and the target power of said next channel poor.
3. calibration steps according to claim 1 is characterized in that, comprises also before the said steps A that portable terminal inserts calibration system, and said portable terminal is a calibration mode.
4. calibration steps according to claim 1; It is characterized in that; Said calibration steps also comprises repeating said steps B and said step C; Obtain the corresponding parameter of said corresponding each channel of working frequency range, said base station emulator stores the corresponding parameter of said corresponding each channel of working frequency range in the said portable terminal into.
5. calibration steps according to claim 1 is characterized in that, radio frequency parameter is calibration channel and emission path energy Control Parameter.
6. calibration steps according to claim 1 is characterized in that, the corresponding parameter among the said step C is Control Parameter, power output parameter and the phase parameter of corresponding power signal.
7. calibration steps according to claim 4 is characterized in that, said calibration steps comprises that also said calibration system orders said base station emulator to calibrate another working frequency range of said portable terminal, and repeating said steps A is to said step C.
8. calibration steps according to claim 7 is characterized in that, after said calibration steps comprised that also said calibration system finishes said portable terminal all working frequency range calibration, said calibration system withdrawed from calibration.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110234513 CN102324991B (en) | 2011-08-16 | 2011-08-16 | Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band |
| PCT/CN2012/079752 WO2013023539A1 (en) | 2011-08-16 | 2012-08-07 | Method for calibrating transmission gsm frequency band power of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110234513 CN102324991B (en) | 2011-08-16 | 2011-08-16 | Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102324991A true CN102324991A (en) | 2012-01-18 |
| CN102324991B CN102324991B (en) | 2013-11-06 |
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| CN 201110234513 Expired - Fee Related CN102324991B (en) | 2011-08-16 | 2011-08-16 | Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band |
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| CN (1) | CN102324991B (en) |
| WO (1) | WO2013023539A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023539A1 (en) * | 2011-08-16 | 2013-02-21 | 惠州Tcl移动通信有限公司 | Method for calibrating transmission gsm frequency band power of mobile terminal |
| CN103533156A (en) * | 2013-07-29 | 2014-01-22 | 共青城赛龙通信技术有限责任公司 | Power forced sending method and system of high pass platform mobile phone |
| CN105357379A (en) * | 2015-10-27 | 2016-02-24 | 上海斐讯数据通信技术有限公司 | Method and system for making intelligent terminal still be effective after being restarted under specific mode |
| CN108494602A (en) * | 2018-04-08 | 2018-09-04 | 上海鸿洛通信电子有限公司 | Method of adjustment, device and the intelligent terminal of OTA parameters |
| WO2019052480A1 (en) * | 2017-09-12 | 2019-03-21 | Mediatek Inc. | Utilization of srs for rpd calibration in wireless communications |
| CN111257672A (en) * | 2020-02-11 | 2020-06-09 | 深圳市广和通无线股份有限公司 | Line loss point inspection method and device, computer equipment and storage medium |
| CN114172593A (en) * | 2021-11-04 | 2022-03-11 | 杭州涂鸦信息技术有限公司 | Power calibration method, calibration equipment and calibration system of wireless module |
Families Citing this family (1)
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| CN113114284B (en) * | 2021-04-12 | 2023-01-06 | 维沃移动通信有限公司 | Control method and control device of radio frequency circuit and electronic equipment |
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- 2011-08-16 CN CN 201110234513 patent/CN102324991B/en not_active Expired - Fee Related
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| US20070047634A1 (en) * | 2005-08-23 | 2007-03-01 | Samsung Electronics Co., Ltd. | Method and apparatus for self-calibration in a mobile transceiver |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023539A1 (en) * | 2011-08-16 | 2013-02-21 | 惠州Tcl移动通信有限公司 | Method for calibrating transmission gsm frequency band power of mobile terminal |
| CN103533156A (en) * | 2013-07-29 | 2014-01-22 | 共青城赛龙通信技术有限责任公司 | Power forced sending method and system of high pass platform mobile phone |
| CN105357379A (en) * | 2015-10-27 | 2016-02-24 | 上海斐讯数据通信技术有限公司 | Method and system for making intelligent terminal still be effective after being restarted under specific mode |
| WO2019052480A1 (en) * | 2017-09-12 | 2019-03-21 | Mediatek Inc. | Utilization of srs for rpd calibration in wireless communications |
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| CN111257672A (en) * | 2020-02-11 | 2020-06-09 | 深圳市广和通无线股份有限公司 | Line loss point inspection method and device, computer equipment and storage medium |
| CN114172593A (en) * | 2021-11-04 | 2022-03-11 | 杭州涂鸦信息技术有限公司 | Power calibration method, calibration equipment and calibration system of wireless module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102324991B (en) | 2013-11-06 |
| WO2013023539A1 (en) | 2013-02-21 |
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