CN108966336A - A kind of power control realization method and system of multi-standard - Google Patents
A kind of power control realization method and system of multi-standard Download PDFInfo
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- CN108966336A CN108966336A CN201810717447.9A CN201810717447A CN108966336A CN 108966336 A CN108966336 A CN 108966336A CN 201810717447 A CN201810717447 A CN 201810717447A CN 108966336 A CN108966336 A CN 108966336A
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- Prior art keywords
- power
- module
- power control
- attenuation
- digital pad
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
-
- 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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a kind of power control realization method and system of multi-standard, method includes the following steps: FPGA is sent into after digital pad, analog frequency mixing module, A/D converter in (1), radiofrequency signal, the power control algorithm inside the FPGA includes: power statistic module and attenuation logic control module；(2), power statistic module carries out power statistic to the data that A/D converter is brought, and calculates its mean power；(3), average power content is compared by attenuation logic control module with the power threshold performance number of setting, and dynamic adjusts the attenuation amplitude of digital pad.The present invention is based on power control algorithm is realized in FPGA, it can be in the case where the investment of low cost, realize the power control of more high dynamic, and when controlling the signal of different systems, the deterioration degree of the linear indexes such as the EVM of radiofrequency signal is effectively alleviated, and the higher range of linearity control of radiofrequency signal is maintained.
Description
Technical field
The present invention relates to mobile communication technology field, in particular to the power control implementation method of a kind of multi-standard and it is
System.
Background technique
With the Large scale construction of mobile network and the quickening of technology innovation, in order to reduce equipment investment and operation at
This, the optical fiber distribution system of multi-standard fusion increasingly becomes operator's focus of attention.In order to ensure each standard output signal
Power in the range of the transmission power of permission, prevent since signal is excessive, and interference is generated to other signals source, need pair
The input signal of each standard has certain clipping control.
ALC (Automatic level control auto level control) is particularly important one in optical fiber distribution system
Ring, the function that ALC technology is realized are exactly on the one hand to control output level to guarantee that power discharging device will not work in over-power condition
Under, output power is on the other hand controlled in covering allowed band, can either meet the coverage distance requirement when network planning, again
Too strong output signal will not be generated to interfere adjacent base station.
Previous power control is directed to single standard mostly, and the power control to multi-standard is simultaneously immature, and the present invention focuses on
Solve the power control in the case of multi-standard.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of power control realization method and system of multi-standard.
To achieve the above object, the specific technical solution of the present invention is as follows: a kind of power control implementation method of multi-standard,
The following steps are included:
(1), equipment receives radiofrequency signal, is sent into after digital pad, analog frequency mixing module, A/D converter
Power control inside FPGA (Field-Programmable Gate Array- field programmable gate array), the FPGA is calculated
Method includes: power statistic module and attenuation logic control module；
(2), power statistic module carries out power statistic to the data that A/D converter is brought, and within the unit time, calculates
Its mean power out；
(3), average power content is compared by attenuation logic control module with the power threshold performance number of setting, and dynamic is adjusted
The attenuation amplitude of whole digital pad.
Preferably, the radiofrequency signal in the step (1) is selected from GSM, CDMA, WCDMA, TD-SCDMA, TD-LTE, FDD-
One of LTE, NB-IoT.
Preferably, its mean power is calculated in the step (2) the specific method is as follows:
It within the unit time, adds up to the power of sampled point, when using divider by cumulative obtained value and unit
Between carry out divide operations, calculated mean power is compared with set threshold value, if it is greater than threshold value, then this function
Rate will be regarded as reactance capacity, be given up；Otherwise performance number is latched.
Preferably, dynamically the specific method is as follows for the attenuation amplitude of adjustment digital pad in the step (3):
If the actual power threshold performance number for being greater than setting, is increased by the attenuation amplitude of digital pad, instead
It, is reduced by the attenuation amplitude of digital pad.
The present invention also provides the systems of the above method, comprising: digital pad, analog frequency mixing module, A/D converter,
FPGA；The system receives radiofrequency signal, is sent into FPGA after digital pad, analog frequency mixing module, A/D converter, institute
Stating the power control algorithm inside FPGA includes: power statistic module and attenuation logic control module；The power statistic module
Power statistic is carried out to the data that A/D converter is brought and calculates its mean power within the unit time；The decaying is patrolled
It collects control module to be compared average power content with the power threshold performance number of setting, dynamic adjusts the decaying of digital pad
Amplitude.
Preferably, the radiofrequency signal is selected from GSM, CDMA, WCDMA, TD-SCDMA, TD-LTE, FDD-LTE, NB-IoT
One of.
Preferably, described to calculate its mean power the specific method is as follows:
It within the unit time, adds up to the power of sampled point, when using divider by cumulative obtained value and unit
Between carry out divide operations, calculated mean power is compared with set threshold value, if it is greater than threshold value, then this function
Rate will be regarded as reactance capacity, be given up；Otherwise performance number is latched.
Preferably, the specific method is as follows for the attenuation amplitude of the dynamic adjustment digital pad:
If the actual power threshold performance number for being greater than setting, is increased by the attenuation amplitude of digital pad, instead
It, is reduced by the attenuation amplitude of digital pad.
Using technical solution of the present invention, have the advantages that
The present invention realizes the function of multi-standard optical fiber distribution system power control, based on the realization power control in FPGA
Algorithm processed can realize the power control of more high dynamic, and in control different systems in the case where the investment of low cost
When signal, the deterioration degree of the linear indexes such as EVM (Error VectorMagnitude, error vector magnitude) of radiofrequency signal
Effectively alleviated, maintains the higher range of linearity control of radiofrequency signal.
Detailed description of the invention
Fig. 1 is systematic schematic diagram of the invention；
Fig. 2 is the power control algorithm flow chart in the present invention inside FPGA.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Referring to figs. 1 to shown in Fig. 2, the power control that the present invention provides a kind of multi-standard realizes system, comprising: digital attenuation
Device 101, analog frequency mixing module 102, A/D converter 103, FPGA 104；The system receives radiofrequency signal, by digital pad
101, FPGA 104 is sent into after analog frequency mixing module 102, A/D converter 103, the power control inside the FPGA 104 is calculated
Method includes: power statistic module and attenuation logic control module；What the power statistic module brought A/D converter 103
Data carry out power statistic and calculate its mean power within the unit time；The attenuation logic control module is by mean power
Value is compared with the power threshold performance number of setting, and dynamic adjusts the attenuation amplitude of digital pad 101.
Wherein, the radiofrequency signal is in GSM, CDMA, WCDMA, TD-SCDMA, TD-LTE, FDD-LTE, NB-IoT
One of.
It is described to calculate its mean power the specific method is as follows:
It within the unit time, adds up to the power of sampled point, when using divider by cumulative obtained value and unit
Between carry out divide operations, calculated mean power is compared with set threshold value, if it is greater than threshold value, then this function
Rate will be regarded as reactance capacity, be given up；Otherwise performance number is latched.
The specific method is as follows for the attenuation amplitude of the dynamic adjustment digital pad:
If the actual power threshold performance number for being greater than setting, is increased by the attenuation amplitude of digital pad, instead
It, is reduced by the attenuation amplitude of digital pad.
The present invention also provides a kind of power control implementation methods of multi-standard, comprising the following steps:
(1), equipment receive radiofrequency signal, by digital pad 101, analog frequency mixing module 102, A/D converter 103 it
It is sent into FPGA 104 afterwards, the power control algorithm inside the FPGA 104 includes: power statistic module and attenuation logic control
Module；
Wherein, the radiofrequency signal in the step (1) is selected from GSM, CDMA, WCDMA, TD-SCDMA, TD-LTE, FDD-
One of LTE, NB-IoT.
(2), power statistic module carries out power statistic to the data that A/D converter is brought, and within the unit time, calculates
Its mean power out；
Calculating its mean power in the step (2), the specific method is as follows:
It within the unit time, adds up to the power of sampled point, when using divider by cumulative obtained value and unit
Between carry out divide operations, calculated mean power is compared with set threshold value, if it is greater than threshold value, then this function
Rate will be regarded as reactance capacity, be given up；Otherwise performance number is latched.
(3), average power content is compared by attenuation logic control module with the power threshold performance number of setting, and dynamic is adjusted
The attenuation amplitude of whole digital pad 101.
The specific method is as follows for the attenuation amplitude of dynamic adjustment digital pad in the step (3):
If the actual power threshold performance number for being greater than setting, is increased by the attenuation amplitude of digital pad, instead
It, is reduced by the attenuation amplitude of digital pad.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (8)
1. a kind of power control implementation method of multi-standard, which comprises the following steps:
(1), equipment receives radiofrequency signal, is sent into FPGA after digital pad, analog frequency mixing module, A/D converter, institute
Stating the power control algorithm inside FPGA includes: power statistic module and attenuation logic control module；
(2), power statistic module carries out power statistic to the data that A/D converter is brought and calculates it within the unit time
Mean power；
(3), average power content is compared by attenuation logic control module with the power threshold performance number of setting, and dynamic adjusts number
The attenuation amplitude of word attenuator.
2. the power control implementation method of multi-standard according to claim 1, which is characterized in that in the step (1)
Radiofrequency signal is selected from one of GSM, CDMA, WCDMA, TD-SCDMA, TD-LTE, FDD-LTE, NB-IoT.
3. the power control implementation method of multi-standard according to claim 1, which is characterized in that the step (2) is fallen into a trap
Calculating its mean power, the specific method is as follows:
Within the unit time, add up to the power of sampled point, the value that cumulative will be obtained using divider and unit time into
Calculated mean power is compared by row divide operations with set threshold value, if it is greater than threshold value, then this power will
It is considered as reactance capacity, is given up；Otherwise performance number is latched.
4. the power control implementation method of multi-standard according to claim 1, which is characterized in that moved in the step (3)
The specific method is as follows for the attenuation amplitude of state adjustment digital pad:
If the actual power threshold performance number for being greater than setting, is increased by the attenuation amplitude of digital pad, conversely, just
Reduce the attenuation amplitude of digital pad.
5. the system of the power control implementation method of multi-standard according to claim 1 characterized by comprising number
Attenuator, analog frequency mixing module, A/D converter, FPGA；The system receives radiofrequency signal, by digital pad, analog frequency mixing
It is sent into FPGA after module, A/D converter, the power control algorithm inside the FPGA includes: power statistic module and decaying
Logic control module；The power statistic module carries out power statistic to the data that A/D converter is brought, in the unit time
It is interior, calculate its mean power；The attenuation logic control module by average power content and the power threshold performance number of setting into
Row compares, and dynamic adjusts the attenuation amplitude of digital pad.
6. the power control of multi-standard according to claim 4 realizes system, which is characterized in that the radiofrequency signal is selected from
One of GSM, CDMA, WCDMA, TD-SCDMA, TD-LTE, FDD-LTE, NB-IoT.
7. the power control of multi-standard according to claim 4 realizes system, which is characterized in that described to calculate it average
The specific method is as follows for power:
Within the unit time, add up to the power of sampled point, the value that cumulative will be obtained using divider and unit time into
Calculated mean power is compared by row divide operations with set threshold value, if it is greater than threshold value, then this power will
It is considered as reactance capacity, is given up；Otherwise performance number is latched.
8. the power control of multi-standard according to claim 4 realizes system, which is characterized in that the dynamic adjustment number
The specific method is as follows for the attenuation amplitude of attenuator:
If the actual power threshold performance number for being greater than setting, is increased by the attenuation amplitude of digital pad, conversely, just
Reduce the attenuation amplitude of digital pad.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810717447.9A CN108966336A (en) | 2018-07-03 | 2018-07-03 | A kind of power control realization method and system of multi-standard |
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| CN201810717447.9A CN108966336A (en) | 2018-07-03 | 2018-07-03 | A kind of power control realization method and system of multi-standard |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859028A (en) * | 2006-01-11 | 2006-11-08 | 华为技术有限公司 | Method for open loop power control of terminal |
| CN101489295A (en) * | 2009-02-20 | 2009-07-22 | 北京北方烽火科技有限公司 | Power controlling method for OFDM system base station receiver |
| CN101969687A (en) * | 2010-10-26 | 2011-02-09 | 三维通信股份有限公司 | Method for implementing digital GSM time slot ALC |
| CN103812811A (en) * | 2012-11-07 | 2014-05-21 | 京信通信系统（中国）有限公司 | Automatic control apparatus and method of digital signal peak power |
-
2018
- 2018-07-03 CN CN201810717447.9A patent/CN108966336A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859028A (en) * | 2006-01-11 | 2006-11-08 | 华为技术有限公司 | Method for open loop power control of terminal |
| CN101489295A (en) * | 2009-02-20 | 2009-07-22 | 北京北方烽火科技有限公司 | Power controlling method for OFDM system base station receiver |
| CN101969687A (en) * | 2010-10-26 | 2011-02-09 | 三维通信股份有限公司 | Method for implementing digital GSM time slot ALC |
| CN103812811A (en) * | 2012-11-07 | 2014-05-21 | 京信通信系统（中国）有限公司 | Automatic control apparatus and method of digital signal peak power |
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Application publication date: 20181207 |