CN110138392A - Transmission power control method and device - Google Patents
Transmission power control method and device Download PDFInfo
- Publication number
- CN110138392A CN110138392A CN201810132061.1A CN201810132061A CN110138392A CN 110138392 A CN110138392 A CN 110138392A CN 201810132061 A CN201810132061 A CN 201810132061A CN 110138392 A CN110138392 A CN 110138392A
- Authority
- CN
- China
- Prior art keywords
- power
- transmission power
- antennal interface
- value
- expectation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transmitters (AREA)
Abstract
The present invention provides a kind of transmission power control method and device, which comprises the transmission power for obtaining transmitting signal obtains the expectation transmission power of antennal interface according to the target gain value of the transmission power of the transmitting signal and transmission channel；The reception power for obtaining feedback signal obtains the actual emission power of the antennal interface according to the yield value of the reception power and feedback channel of the feedback signal；According to the expectation transmission power and actual emission power of the antennal interface, correction gain value is obtained；According to the correction gain value, gain compensation is carried out to the transmitting signal.Transmission power control method and device provided by the invention can be improved the precision of antennal interface transmission power compared with open-loop power control method in the prior art.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of transmission power control method and devices.
Background technique
In a communications system, in the transmission channel of wireless module, baseband signal is after numerical portion is handled, into mould
Quasi- link is modulated, and is output to antennal interface after then amplifying by radio frequency.In general, the analog link of transmission channel needs to protect
A stable gain is held, the power and anticipating power that antennal interface could be made to export are equal.But form transmission channel
Device can be due to the variation of the factors such as temperature and frequency, so that the gain of analog link generates certain fluctuation.In order to guarantee to send out
Channel is penetrated in the Stability and veracity of the transmission power of antennal interface, need in analog channel due to temperature and frequency etc. because
Change in gain caused by the variation of element compensates, and here it is transmission power control technologies.
In the prior art, the transmission power control method generallyd use is open loop power control, specifically, in transmission channel
Analog link, a temperature frequency is made in the analog link yield value under test record different temperatures and frequency respectively first
Gain table.When executing transmission power control, execute according to the following steps: the expectation for obtaining transmitting signal in antennal interface emits
Power power_expected obtains the digital power power_digital of transmitting signal, according to current temperature and frequency,
It searches temperature frequency table and obtains the yield value gain_fix of transmission channel；By three above information, calculates and need modified gain
Value is gain_correct=power_digital+gain_fix-power_expected, then will need modified gain
Value gain_correct, which is configured in analog link, carries out gain compensation.
It is a certain range of temperature and frequency corresponding one in above-mentioned transmission power control method, in temperature frequency gain table
A yield value, so the yield value obtained according to Current Temperatures and frequency search can have error, especially when transmission power ratio
When larger, error can be more obvious, causes the precision of the transmission power of antennal interface low.
Summary of the invention
The present invention provides a kind of transmission power control method and device, uses open loop power control in the prior art for solving
There is error in the transmission power that method obtains, improve the precision of antennal interface transmission power.
In a first aspect, transmission power control method provided by the invention, comprising:
The transmission power for obtaining transmitting signal, according to the target gain of the transmission power of the transmitting signal and transmission channel
Value, obtains the expectation transmission power of antennal interface；
Obtain feedback signal reception power, according to the feedback signal reception power and feedback channel yield value,
Obtain the actual emission power of the antennal interface；
According to the expectation transmission power and actual emission power of the antennal interface, correction gain value is obtained；
According to the correction gain value, gain compensation is carried out to the transmitting signal.
Optionally, the yield value of the reception power and feedback channel according to the feedback signal, obtains the antenna
Before the actual emission power of interface, further includes:
According to preset temperature frequency gain table and current temperature and frequency, the gain of the feedback channel is obtained
Value.
Optionally, the target gain value according to the transmission power for emitting signal and transmission channel, obtains antenna
Before the expectation transmission power of interface, further includes:
Emit full power according to the expectation of the transmitting full power and the antennal interface of the transmitting signal, obtains the hair
Penetrate the target gain value in channel.
Optionally, the expectation transmission power and actual emission power according to the antennal interface, obtains modified gain
Value, comprising:
Whether the difference of the expectation transmission power and actual emission power that judge the antennal interface is greater than preset threshold value,
If so, obtaining correction gain value according to the expectation transmission power and actual emission power of the antennal interface.
Optionally, before the transmission power for obtaining transmitting signal, further includes:
The transmitting signal is filtered.
Optionally, before the reception power for obtaining feedback signal, further includes:
The feedback signal is filtered.
Second aspect, emission power control device provided by the invention, comprising: obtain module and correction module；
The acquisition module, for obtaining the transmission power of transmitting signal；Obtain the reception power of feedback signal；
The correction module, for obtaining according to the transmission power of the transmitting signal and the target gain value of transmission channel
To the expectation transmission power of antennal interface；According to the yield value of the reception power and feedback channel of the feedback signal, institute is obtained
State the actual emission power of antennal interface；According to the expectation transmission power and actual emission power of the antennal interface, repaired
Postiive gain value；According to the correction gain value, gain compensation is carried out to the transmitting signal.
Optionally, the correction module is also used to according to preset temperature frequency gain table and current temperature and frequency
Rate obtains the yield value of the feedback channel.
Optionally, the correction module is also used to transmitting full power and the antennal interface according to the transmitting signal
Expectation emit full power, obtain the target gain value of the transmission channel.
Optionally, the correction module, specifically for judging the expectation transmission power and actual transmission of the antennal interface
Whether the difference of power is greater than preset threshold value, if so, according to the expectation transmission power and actual transmission of the antennal interface
Power obtains correction gain value.
Optionally, the acquisition module is also used to be filtered the transmitting signal.
Optionally, the acquisition module is also used to be filtered the feedback signal.
Transmission power control method and device provided by the invention, which comprises obtain the transmitting function of transmitting signal
Rate obtains the expectation transmitting function of antennal interface according to the target gain value of the transmission power of the transmitting signal and transmission channel
Rate；The reception power for obtaining feedback signal obtains institute according to the yield value of the reception power and feedback channel of the feedback signal
State the actual emission power of antennal interface；According to the expectation transmission power and actual emission power of the antennal interface, repaired
Postiive gain value；According to the correction gain value, gain compensation is carried out to the transmitting signal.Transmission power control provided by the invention
Method processed increases a feedback channel on the basis of open loop power control of the prior art for transmission channel, based on the feedback signal
Reception power and the yield value of feedback channel obtain the actual emission power of antennal interface, then according to the expectation of antennal interface
Transmission power and actual emission power obtain modified gain, and carry out gain compensation to transmitting signal according to the modified gain, from
And improve the precision of antennal interface transmission power.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of emissive power control system in the prior art；
Fig. 2 is the structural schematic diagram of emissive power control system provided by the invention；
Fig. 3 is the flow chart of transmission power control embodiment of the method one provided by the invention；
Fig. 4 is the flow chart of transmission power control embodiment of the method two provided by the invention；
Fig. 5 is the structural schematic diagram of emission power control device embodiment provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein for example can be to remove
Sequence other than those of illustrating or describe herein is implemented.In addition, term " includes " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, production
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for this
A little process, methods, the other step or units of product or equipment inherently.
As previously mentioned, in the prior art, the transmission power control method generallyd use is open loop power control, specifically, Fig. 1 is
The structural schematic diagram of emissive power control system in the prior art, as shown in Figure 1, the transmission channel of emissive power control system
In, including sequentially connected base band, digital analog converter (Digital to Analog Converter, DAC), frequency mixer
(Mixer, MIX), analog gain controller (Automatic Gain Control, AGC), power amplifier (Power
Amplifier, PA) and filter (Surface Acoustic Wave, SAW), that is to say, that transmitting signal is logical by transmitting
After the processing in road, obtained radiofrequency signal is launched by antennal interface.When executing transmission power control, according to following step
It is rapid to execute: to obtain transmitting signal in the expectation transmission power power_expected of antennal interface, obtain the number of transmitting signal
Power power_digital searches temperature frequency table and obtains the yield value of transmission channel according to current temperature and frequency
gain_fix；By three above information, calculates and need modified yield value for gain_correct=power_digital+
Then gain_fix-power_expected will need modified yield value gain_correct to be configured in analog link AGC
Carry out gain compensation.
However, being a certain range of temperature and frequency in temperature frequency gain table in above-mentioned transmission power control method
A corresponding yield value especially works as transmitting so the yield value obtained according to Current Temperatures and frequency search can have error
When power is bigger, error can be more obvious, causes the precision of the transmission power of antennal interface low.
Transmission power control method and device provided by the invention can solve above-mentioned open loop power control in the prior art
There is error in obtained transmission power, to improve the precision of antennal interface transmission power.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 2 is the structural schematic diagram of emissive power control system provided by the invention, as shown in Fig. 2, transmission power control
It include transmission channel and feedback channel in system, wherein include sequentially connected base band, DAC, MIX, AGC, PA in transmission channel
And SAW, it include sequentially connected filter SAW, MIX, ADC and base band in feedback channel.In transmission channel, baseband signal is by hair
After penetrating the processing in channel, obtained radiofrequency signal is launched by antennal interface；Meanwhile by radio frequency at antennal interface
Signal is coupled and obtains feedback signal after being decayed, base of the feedback signal after the processing of feedback channel, after being restored
Band signal.
The inventive principle of transmission power control method and device provided by the invention is as follows: as shown in Fig. 2, the present invention is scheming
On the basis of emissive power control system shown in 1, a feedback channel is increased, and to radiofrequency signal at antennal interface
It is coupled and obtains feedback signal after being decayed, feedback signal is sent into feedback channel.When executing transmission power control, root
Calculate the actual emission power of antennal interface in real time according to the reception power of feedback signal and the yield value of feedback channel, then basis
The expectation transmission power and actual emission power of antennal interface obtain modified gain, and according to the modified gain to transmitting signal
Carry out gain compensation.It will be appreciated by those skilled in the art that, transmission power control method and device provided by the invention belongs to
Closed-loop power control, since certain decaying has been carried out in feedback signal before entering feedback channel, i.e. feedback signal and transmitting is believed
Number smaller compared to power, also, the quantity of the analog device in feedback channel is less relative to transmission channel, so feedback channel
In the gain fluctuation that generates with the variation of temperature and frequency it is smaller, that is to say, that by searching for temperature frequency gain table, obtain
The yield value of feedback channel accuracy with higher.Therefore, and existing using transmission power control method provided by the invention
Technology is compared, and the precision of antennal interface transmission power can be improved.
Fig. 3 is the flow chart of transmission power control embodiment of the method one provided by the invention, as shown in figure 3, the present embodiment
Transmission power control method, can be used in emissive power control system as shown in Figure 2, the method for the present embodiment includes:
S11: obtaining the transmission power of transmitting signal, according to the target of the transmission power of the transmitting signal and transmission channel
Yield value obtains the expectation transmission power of antennal interface.
Specifically, as shown in Fig. 2, obtaining the transmission power of transmitting signal, the step in the inlet DAC of transmission channel
In transmitting signal refer to by base band export baseband signal, that is to say, that obtain the digital power of baseband signal.
It will be appreciated by those skilled in the art that, the transmission power obtained in the step is that digital power (i.e. believe by numeric field
Number power), be defined relative to the average power signal size of full scale peak power, indicated using logarithm, unit is
DbFS, also, the subsequent digital power being related to should all be understood in this way, and be repeated no more hereinafter.
Wherein, the target gain value of transmission channel refers to the yield value of the analog link of transmission channel, can be logical according to transmitting
The specific features in road are obtained, and there are many acquisition methods, and one of optional embodiment can be found in embodiment two
It specifically describes.
Optionally, in situation known to the target gain value of transmission channel, the transmitting according to the transmitting signal
The target gain value of power and transmission channel obtains the expectation transmission power of antennal interface, comprising:
The transmission power of the transmitting signal is added with the target gain value of transmission channel, obtains the expectation of antennal interface
Transmission power.
Wherein, the expectation transmission power of the antennal interface refers to the expectation transmitting function of the radiofrequency signal at antennal interface
Rate.
S12: obtaining the reception power of feedback signal, according to the gain of the reception power and feedback channel of the feedback signal
Value, obtains the actual emission power of the antennal interface.
Specifically, as shown in Fig. 2, obtaining the reception power of feedback signal, the step in the exit ADC of feedback channel
In feedback signal refer to by ADC export digital signal, that is to say, that obtain by the ADC digital signal exported digital function
Rate.
Wherein, the yield value of the feedback channel can change with the variation of temperature and frequency, one of optional real
It applies in mode, embodiment can be can be found according to the yield value of current temperature and frequency acquisition feedback channel, specific implementation process
Two specific descriptions.
Optionally, in situation known to the yield value of feedback channel, the reception power according to the feedback signal
With the yield value of feedback channel, the actual emission power of the antennal interface is obtained, comprising:
The reception power of the feedback signal is added with the yield value of feedback channel, obtains the actual transmission of antennal interface
Power.
Wherein, the actual emission power of the antennal interface refers to the actual transmission function of the radiofrequency signal at antennal interface
Rate.
S13: according to the expectation transmission power and actual emission power of the antennal interface, correction gain value is obtained.
Specifically, the expectation transmission power of the antennal interface to be subtracted to the difference of actual emission power, repaired as described
Postiive gain value.
S14: according to the correction gain value, gain compensation is carried out to the transmitting signal.
Specifically, the current gain value configured in transmission channel AGC is added the correction gain value, target gain is obtained
Value, then the target gain value is configured in transmission channel AGC, to realize the gain compensation to transmitting signal.
It should be understood that above-mentioned S11 to S14 during realizing transmission power control, is that circulation executes.Also,
S11 and S12 has no specific sequencing, can first carry out S11 and execute S12 again, can also first carry out S12 and execute S11 again, also
It can be executed so that S11 is synchronous with S12.
Transmission power control method provided in this embodiment, by the basis of the open loop power control of the prior art, for hair
It penetrates channel and increases a feedback channel, the yield value of reception power and feedback channel based on the feedback signal obtains antennal interface
Actual emission power obtains modified gain then according to the expectation transmission power and actual emission power of antennal interface, and according to
The modified gain carries out gain compensation to transmitting signal, to improve the precision of antennal interface transmission power.
Optionally, before first time executes S14, further includes: configure the current gain configured in transmission channel AGC to
Negative maximum value, for example, before first time executes power control, will match in transmission channel AGC if the 20db of the maximum value of AGC
The current gain value set is configured to -20db, to prevent the transmitting excessive PA burnt out in transmission channel of signal power.
Optionally, before the transmission power for obtaining transmitting signal, further includes:
The transmitting signal is filtered.
Optionally, before the reception power for obtaining feedback signal, further includes:
The feedback signal is filtered.
Wherein, the filtering processing includes: to filter out the band signal that do not support and cut to the band signal of support
Wave processing, so that it is more accurate according to the digital power that filtered transmitting signal and feedback signal obtain, and then can be improved
The precision of antenna opening transmission power.
Fig. 4 is the flow chart of transmission power control embodiment of the method two provided by the invention, the transmission power of the present embodiment
Control method, on the basis of the above embodiments, with the process of a specific example detailed description transmission power control.
Firstly the need of explanation, before executing power control, the preset temperature frequency that needs to complete first increases
Beneficial table.The specific method is as follows: for the analog link in feedback channel, testing and record different temperatures and/or different frequencies respectively
The corresponding yield value of analog link under rate obtains the preset temperature frequency gain table.
As shown in figure 4, the method for the present embodiment includes:
S21: full power is emitted according to the expectation of the transmitting full power and the antennal interface of the transmitting signal, obtains institute
State the target gain value of transmission channel.
In system as shown in Figure 2, it is assumed that the digital full power of known transmitting signal is -12dbfs, also, known antenna
The expectation transmitting full power of interface is 30dbm, then the target gain value of the transmission channel got be 30dbm- (-
12dbfs)=42db.
S22: according to preset temperature frequency gain table and current temperature and frequency, the increasing of the feedback channel is obtained
Benefit value.
Assuming that the Current Temperatures of system link are 70 degree, emission signal frequency 2010MHz.
At above-mentioned temperature and frequency, by tabling look-up to preset temperature frequency gain table, it is logical to obtain the feedback
The yield value in road is -50.3db.
S23: obtaining the transmission power of transmitting signal, according to the target of the transmission power of the transmitting signal and transmission channel
Yield value obtains the expectation transmission power of antennal interface.
Corresponding with the S11 in embodiment one shown in Fig. 3, details are not described herein again.
Assuming that the transmission power of the transmitting signal detected is -24dbfs in the inlet DAC of transmission channel, then, root
According to transmitting signal transmission power -24dbfs and transmission channel target gain value 42db, the available antennal interface
It is expected that transmission power is -24dbfs+42db=18dbm.
S24: obtaining the reception power of feedback signal, according to the gain of the reception power and feedback channel of the feedback signal
Value, obtains the actual emission power of the antennal interface.
Corresponding with the S12 of embodiment one kind shown in Fig. 3, details are not described herein again.
Assuming that the reception power of the feedback signal detected is -43dbfs in the exit ADC of feedback channel, then, root
According to the yield value -50.3db of the reception power -43dbfs and feedback channel of feedback signal, the reality of the available antennal interface
Border transmission power is -43dbfs- (- 50.3db)=7.3dbm.
It should be noted that before the reception power for obtaining feedback signal, need to the radiofrequency signal of antennal interface into
Row coupling, obtains feedback signal.Such as: as shown in Fig. 2, can connect between the outlet of transmission channel and the entrance of feedback channel
A coupler is connect, the coupler is used to receive radiofrequency signal from the exit of transmission channel, and the radiofrequency signal is sent
Enter in feedback channel.
S25: it is preset whether the difference of the expectation transmission power and actual emission power that judge the antennal interface is greater than
Threshold value.
It should be understood that there are gain errors to be inevitable in transmission channel due to the characteristic of analog circuit, institute
A threshold value can be arranged for the expectation transmission power of the antennal interface and the difference of actual emission power, for example, described
Threshold value is positioned at the numerical value for being greater than -0.2db and being less than within the scope of 0.2db.Specifically, the expectation when the antennal interface emits function
When rate and the difference of actual emission power are less than or equal to the threshold value, then power control process terminates；If the difference is greater than institute
Threshold value is stated, then continues to execute S26 and realizes close-loop power control process, until the error is less than or equal to the threshold value.
It should be noted that the specific value of the threshold value can be configured according to the actual situation, the present invention does not make to have
Body limits, and above are only illustration.
S26: if so, according to the expectation transmission power and actual emission power of the antennal interface, correction gain value is obtained.
Specifically, antenna obtained in expectation the transmission power 18dbm and S24 of the antennal interface according to obtained in S23 connects
The actual emission power 7.3dbm of mouth, available correction gain value are 18dbm-7.3dbm=10.7db.
S27: according to the correction gain value, gain compensation is carried out to the transmitting signal.
By comparing the expectation transmission power and actual emission power of antennal interface in S25, the reality of antennal interface is found
Border transmission power and the small 10.7db of it is expected transmission power, that is to say, that need modified yield value for 10.7db.Therefore, exist
Increase the correction gain value on the basis of transmission channel AGC current gain, obtains the target gain value of AGC, it is assumed that AGC currently increases
Benefit value is -20db, then revised AGC target gain value is -20db+10.7db=-9.3db, therefore, will in transmission channel
The yield value of AGC is configured to -9.3db, to realize the gain compensation to transmitting signal.
Transmission power control method provided in this embodiment, it is logical to emit on the basis of the open loop power control of the prior art
Road increases a feedback channel, and the yield value of reception power and feedback channel based on the feedback signal obtains the reality of antennal interface
Transmission power obtains modified gain then according to the expectation transmission power and actual emission power of antennal interface, and is repaired according to this
Postiive gain carries out gain compensation to transmitting signal, to improve the precision of antennal interface transmission power.
Fig. 5 is the structural schematic diagram of emission power control device embodiment provided by the invention, as shown in figure 5, this implementation
The emission power control device that example provides, including obtain module 501 and correction module 502；
Module 501 is obtained, for obtaining the transmission power of transmitting signal；Obtain the reception power of feedback signal；
Correction module 502, for obtaining according to the transmission power of the transmitting signal and the target gain value of transmission channel
The expectation transmission power of antennal interface；According to the yield value of the reception power and feedback channel of the feedback signal, obtain described
The actual emission power of antennal interface；According to the expectation transmission power and actual emission power of the antennal interface, corrected
Yield value；According to the correction gain value, gain compensation is carried out to the transmitting signal.
Optionally, correction module 502 are also used to according to preset temperature frequency gain table and current temperature and frequency
Rate obtains the yield value of the feedback channel.
Optionally, correction module 502 are also used to transmitting full power and the antennal interface according to the transmitting signal
It is expected that emitting full power, the target gain value of the transmission channel is obtained.
Optionally, correction module 502, specifically for judging the expectation transmission power and actual transmission function of the antennal interface
Whether the difference of rate is greater than preset threshold value, if so, according to the expectation transmission power and actual transmission function of the antennal interface
Rate obtains correction gain value.
Optionally, module 501 is obtained, is also used to be filtered the transmitting signal.
Optionally, module 501 is obtained, is also used to be filtered the feedback signal.
Emission power control device provided in this embodiment can be used for executing the technical side of any of the above-described embodiment of the method
Case, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of transmission power control method characterized by comprising
Obtain transmitting signal transmission power, according to it is described transmitting signal transmission power and transmission channel target gain value,
Obtain the expectation transmission power of antennal interface；
The reception power for obtaining feedback signal is obtained according to the yield value of the reception power and feedback channel of the feedback signal
The actual emission power of the antennal interface；
According to the expectation transmission power and actual emission power of the antennal interface, correction gain value is obtained；
According to the correction gain value, gain compensation is carried out to the transmitting signal.
2. the method according to claim 1, wherein the reception power and feedback according to the feedback signal
The yield value in channel, before obtaining the actual emission power of the antennal interface, further includes:
According to preset temperature frequency gain table and current temperature and frequency, the yield value of the feedback channel is obtained.
3. according to the method described in claim 2, it is characterized in that, the transmission power and transmitting according to the transmitting signal
The target gain value in channel, before obtaining the expectation transmission power of antennal interface, further includes:
Emit full power according to the expectation of the transmitting full power and the antennal interface of the transmitting signal, it is logical to obtain the transmitting
The target gain value in road.
4. according to the method described in claim 3, it is characterized in that, the expectation transmission power according to the antennal interface and
Actual emission power obtains correction gain value, comprising:
Whether the difference of the expectation transmission power and actual emission power that judge the antennal interface is greater than preset threshold value, if
It is, then according to the expectation transmission power and actual emission power of the antennal interface, to obtain correction gain value.
5. the method according to claim 1, wherein also being wrapped before the transmission power for obtaining transmitting signal
It includes:
The transmitting signal is filtered.
6. according to the method described in claim 5, it is characterized in that, also being wrapped before the reception power for obtaining feedback signal
It includes:
The feedback signal is filtered.
7. a kind of emission power control device characterized by comprising obtain module and correction module；
The acquisition module, for obtaining the transmission power of transmitting signal；Obtain the reception power of feedback signal；
The correction module, for obtaining day according to the transmission power of the transmitting signal and the target gain value of transmission channel
The expectation transmission power of line interface；According to the yield value of the reception power and feedback channel of the feedback signal, the day is obtained
The actual emission power of line interface；According to the expectation transmission power and actual emission power of the antennal interface, obtains amendment and increase
Benefit value；According to the correction gain value, gain compensation is carried out to the transmitting signal.
8. device according to claim 7, which is characterized in that
The correction module is also used to according to preset temperature frequency gain table and current temperature and frequency, described in acquisition
The yield value of feedback channel.
9. device according to claim 8, which is characterized in that
The correction module is also used to full according to the transmitting full power of the transmitting signal and the expectation transmitting of the antennal interface
Power obtains the target gain value of the transmission channel.
10. device according to claim 9, which is characterized in that
The correction module, specifically for judging that expectation transmission power and the difference of actual emission power of the antennal interface be
It is no to be greater than preset threshold value, if so, being corrected according to the expectation transmission power and actual emission power of the antennal interface
Yield value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132061.1A CN110138392A (en) | 2018-02-09 | 2018-02-09 | Transmission power control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132061.1A CN110138392A (en) | 2018-02-09 | 2018-02-09 | Transmission power control method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110138392A true CN110138392A (en) | 2019-08-16 |
Family
ID=67567526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810132061.1A Pending CN110138392A (en) | 2018-02-09 | 2018-02-09 | Transmission power control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110138392A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068194A1 (en) * | 2019-10-11 | 2021-04-15 | 深圳信息职业技术学院 | Training method and apparatus for antenna signal processing model, and antenna and storage medium |
| CN114679774A (en) * | 2022-04-02 | 2022-06-28 | 上海星思半导体有限责任公司 | Method, device and system for adjusting transmission parameters |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06232665A (en) * | 1993-02-01 | 1994-08-19 | Hitachi Ltd | Transmission output control system |
| CN1925348A (en) * | 2006-10-10 | 2007-03-07 | 华为技术有限公司 | Standing-wave ratio detecting method and device |
| CN106817756A (en) * | 2015-11-30 | 2017-06-09 | 展讯通信（上海）有限公司 | A kind of control method and device of data feedback channel power |
| CN206349988U (en) * | 2016-12-28 | 2017-07-21 | 都邑科技（北京）有限公司 | A kind of transmitting chain of utilization DPD feedback control gains |
-
2018
- 2018-02-09 CN CN201810132061.1A patent/CN110138392A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06232665A (en) * | 1993-02-01 | 1994-08-19 | Hitachi Ltd | Transmission output control system |
| CN1925348A (en) * | 2006-10-10 | 2007-03-07 | 华为技术有限公司 | Standing-wave ratio detecting method and device |
| CN106817756A (en) * | 2015-11-30 | 2017-06-09 | 展讯通信（上海）有限公司 | A kind of control method and device of data feedback channel power |
| CN206349988U (en) * | 2016-12-28 | 2017-07-21 | 都邑科技（北京）有限公司 | A kind of transmitting chain of utilization DPD feedback control gains |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068194A1 (en) * | 2019-10-11 | 2021-04-15 | 深圳信息职业技术学院 | Training method and apparatus for antenna signal processing model, and antenna and storage medium |
| CN114223270A (en) * | 2019-10-11 | 2022-03-22 | 深圳信息职业技术学院 | Training method and device for antenna signal processing model, antenna and storage medium |
| CN114223270B (en) * | 2019-10-11 | 2023-03-24 | 深圳信息职业技术学院 | Training method and device for antenna signal processing model, antenna and storage medium |
| CN114679774A (en) * | 2022-04-02 | 2022-06-28 | 上海星思半导体有限责任公司 | Method, device and system for adjusting transmission parameters |
| CN114679774B (en) * | 2022-04-02 | 2023-04-04 | 上海星思半导体有限责任公司 | Method, device and system for adjusting transmission parameters |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101945417B (en) | Method and device for computing gains of multiple receiving links/transmitting links | |
| CN103997352B (en) | Active antenna relevant device, system and transmitting-receiving calibration steps | |
| CN102195567B (en) | Power amplifier linearization feedback methods and systems | |
| CN106464392B (en) | RF transceiver front-end module with the improved linearity | |
| US20160285485A1 (en) | Method and apparatus for multiband predistortion using time-shared adaptation loop | |
| EP1675256B1 (en) | Radio transmitter, transmission power adjustment method and recording medium storing program for implementing method | |
| CN106922014B (en) | Production calibration initial table generation method and system and mobile terminal | |
| CN110138392A (en) | Transmission power control method and device | |
| CN104038299B (en) | Frequency-sweeping apparatus and signal processing method | |
| CN107968682A (en) | Erbium-doped fiber amplifier control system | |
| CN115765768A (en) | High-power pulse-waveform-adjustable navigation tube transmitter | |
| CN102324991A (en) | Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band | |
| EP2847864B1 (en) | Apparatus and method for matching antenna impedance in wireless communication system | |
| CN103002552B (en) | Acquisition methods, automatic power control method and the device of automated power control code table | |
| US8000665B2 (en) | Systems and methods for adjusting headroom of a power amplifier | |
| CN210469240U (en) | High-stability forward automatic gain control circuit | |
| US20170085279A1 (en) | Transmission circuit, high-frequency front-end circuit, transmission signal control method, and high-frequency front-end transmission/reception control method | |
| CN109150240B (en) | Digital predistortion on-line training method for wireless frequency hopping communication system | |
| CN114039619B (en) | Zero intermediate frequency radio frequency front-end circuit, system, radio frequency unit protection method and medium | |
| CN101969298B (en) | High-power travelling wave tube amplifier for broadband | |
| WO2022001373A1 (en) | Method for reporting and controlling power, and terminal, base station and communication system | |
| CN101119150A (en) | Method for implementing intelligent automatic level control and intelligent gain control | |
| CN210053409U (en) | Configurable digital power corrector for broadband communication radio station | |
| CN102217262B (en) | Method for transmitting radio frequency signals and base station device | |
| CN106899383A (en) | Communication equipment and communication means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |