CN101621323A - Method for optimizing flatness index of repeater - Google Patents
Method for optimizing flatness index of repeater Download PDFInfo
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- CN101621323A CN101621323A CN200910063394A CN200910063394A CN101621323A CN 101621323 A CN101621323 A CN 101621323A CN 200910063394 A CN200910063394 A CN 200910063394A CN 200910063394 A CN200910063394 A CN 200910063394A CN 101621323 A CN101621323 A CN 101621323A
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- repeater
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Abstract
The invention relates to a method for optimizing the flatness index of a repeater, which comprises the following steps: a. controlling a signal source to output carrier signals with different frequencies which are then input into the repeater, and simultaneously controlling a monitoring unit of the repeater to set corresponding working frequency points for two frequency selectors by a monitoring platform; b. detecting input carrier signal power and output carrier signal power by a power detection module 1 and a power detection module 2, transporting the input carrier signal power and the output carrier signal power to the monitoring unit, and calculating the repeater gains with different frequencies of each physical channel by the monitoring unit; and c. acquiring the corresponding relationship of the repeater gain and the frequency of each physical channel by the monitoring unit, differencing the repeater gain and required gain and compensating a difference value through the attenuation units of the two frequency selectors, thereby optimizing the flatness index of the repeater. By the method, an ATT unit in each physical channel of the frequency selectors is used for gain compensation processing, and thereby the flatness of the repeater can be extremely excellent, and a network coverage effect can be effectively ensured.
Description
Technical field
The present invention relates to a kind of method of optimizing flatness index of repeater.
Background technology
The wireless discharging-directly station cost is low, need not trunk and optical fiber, need not machine room, need not to stay the people on duty, and volume is little, in light weight, easy for installation, and the degree of protection height uses in the adverse circumstances in the open air.The wireless frequency selecting repeater interference free performance is better than WiMAX repeater, has obtained extensive application in outdoor signal covers.
Wireless discharging-directly station forward direction or reverse link cascaded RF module are many, system gain is big, for isolation and the outer interference signal of inhibition zone that guarantees system, integrated devices such as dielectric filter, intermediate frequency filtering, rf filtering in the module, these filtering device fluctuations are bigger, after cascading up, the flatness of wireless discharging-directly station machine system often exceeds index request.
The wireless discharging-directly station flatness is poor, and promptly the signal amplification factor difference to different frequent points is big, and the signal amplification factor of some frequency is big, and the signal amplification factor of some frequency is little, can just bring influence to the network coverage like this.
Summary of the invention
Purpose of the present invention is in order to overcome problem and the shortcoming that above-mentioned prior art exists, a kind of method of optimizing flatness index of repeater is provided, and the inventive method solves the harmful effect that common wireless discharging-directly station exceeds standard and brings to the network coverage because of flatness index effectively in real network is used.
The technical solution used in the present invention:
The repeater comprises: downlink radio frequency link, up radio frequency link, monitor supervision platform, signal source, monitoring unit, downlink radio frequency chain route power detection module one, alms giver's duplexer, LNA, frequency-selector, power amplifier, repeating transmission duplexer, power detection module two and the radio frequency connecting line that is connected each several part are formed, and power detection module 1 links to each other with alms giver's duplexer, LNA, frequency-selector, power amplifier, repeating transmission duplexer, power detection module two successively by the radio frequency connecting line; Up radio frequency link is by power detection module two, retransmit duplexer, LNA, frequency-selector, power amplifier, alms giver's duplexer, power detection module one is formed with the radio frequency connecting line that is connected each several part, power detection module two by the radio frequency connecting line successively with retransmit duplexer, LNA, frequency-selector, power amplifier, alms giver's duplexer, power detection module one links to each other, monitor supervision platform and signal source, monitoring unit links to each other, signal source links to each other with power detection module one, monitoring unit respectively with the power detection module one of downlink radio frequency link, LNA, frequency-selector, power amplifier, power detection module two links to each other, monitoring unit respectively with the power detection module two of up radio frequency link, LNA, frequency-selector, power amplifier, power detection module one links to each other.
A kind of method of optimizing flatness index of repeater, carry out according to the following steps:
The carrier signal of a, monitor supervision platform control signal source output different frequency is input to the repeater, controls the monitoring unit of repeater simultaneously and corresponding working frequency points is set for two frequency-selectors of upper and lower radio frequency link;
B, power detection module one and two pairs of input carrier signal power of power detection module and outgoing carrier signal power detect, and flow to monitoring unit, and monitoring unit calculates each physical channel in the gain of the repeater of different frequency;
C, monitoring unit obtain the repeater gain of each physical channel and the corresponding relation of frequency, the repeater gain is asked poor with requiring gain, difference compensates processing by the attenuation units (ATT) of two frequency-selectors of upper and lower radio frequency link, makes flatness index of repeater good.
The method of aforesaid optimization flatness is characterized in that: by Synchronization Control outside source output frequency with the frequency-selector frequency is set, and then detect by input signal detection and output signal and to obtain the gain of each physical channel at different frequency point.
The method of aforesaid optimization flatness, it is characterized in that: utilize the repeater gain of each physical channel that said method obtains and the corresponding relation of frequency, ask poor with requiring gain, difference compensates automatically by the ATT unit of each physical channel, makes that the complete machine flatness index is good.
The present invention compares advantage, characteristics or the good effect that is had with prior art:
Conventional wireless frequency selecting repeater does not carry out above-mentioned processing, and flatness index often exceeds standard, and coverage effect is bad in real network is used.
The present invention is guaranteeing the repeater in network application, and the frequency of judgement frequency-selector work carries out gain compensation by the ATT unit in each physical channel of frequency-selector and handles, and makes the repeater flatness very good, has effectively guaranteed the coverage effect of network.
Description of drawings
Fig. 1 is the schematic diagram of embodiments of the invention.
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing:
As shown in Figure 1, drawings and Examples of the present invention are that example is introduced this method with the gsm wireless frequency selecting repeater.This method is applicable to any type frequency selecting repeater.
Fig. 1 is the implementation of the extra small flatness wireless frequency selecting repeater of GSM.
As shown in Figure 1, downlink radio frequency chain route power detection module 1, alms giver's duplexer 2, LNA 3, frequency-selector 4, power amplifier 5, retransmit duplexer 6, power detection module 27 and be connected the radio frequency connecting line composition of each several part; Up radio frequency link is by power detection module 27, retransmits duplexer 6, LNA 8, frequency-selector 9, power amplifier 10, alms giver's duplexer 2, power detection module 1 and is connected the radio frequency connecting line composition of each several part.
Idiographic flow is as follows:
By above operation, monitoring unit 14 obtains the gain of each physical channel of uplink and downlink link at different frequency point, ask poor with the gain that requires again, difference is by two frequency-selectors (4 of uplink and downlink, 10) the ATT unit of each physical channel carries out the gain compensation processing in, so that the complete machine flatness index is good.
Claims (1)
1, a kind of method of optimizing flatness index of repeater, carry out according to the following steps:
The carrier signal of a, monitor supervision platform control signal source output different frequency is input to the repeater, controls the monitoring unit of repeater simultaneously and corresponding working frequency points is set for two frequency-selectors of upper and lower radio frequency link;
B, power detection module one and two pairs of input carrier signal power of power detection module and outgoing carrier signal power detect, and flow to monitoring unit, and monitoring unit calculates each physical channel in the gain of the repeater of different frequency;
C, monitoring unit obtain the repeater gain of each physical channel and the corresponding relation of frequency, the repeater gain is asked poor with requiring gain, difference compensates processing by the attenuation units (ATT) of two frequency-selectors of upper and lower radio frequency link, makes flatness index of repeater optimization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910063394A CN101621323A (en) | 2009-07-31 | 2009-07-31 | Method for optimizing flatness index of repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910063394A CN101621323A (en) | 2009-07-31 | 2009-07-31 | Method for optimizing flatness index of repeater |
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| CN101621323A true CN101621323A (en) | 2010-01-06 |
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| CN200910063394A Pending CN101621323A (en) | 2009-07-31 | 2009-07-31 | Method for optimizing flatness index of repeater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917220A (en) * | 2010-08-20 | 2010-12-15 | 武汉虹信通信技术有限责任公司 | Repeater for eliminating near-far effect |
| WO2011131155A2 (en) * | 2011-06-09 | 2011-10-27 | 华为技术有限公司 | Method and device for compensating power according to frequency |
| CN102904628A (en) * | 2012-10-11 | 2013-01-30 | 三维通信股份有限公司 | Consistency compensation method for gains of digital frequency-selecting repeater |
| CN103716096A (en) * | 2012-09-29 | 2014-04-09 | 京信通信系统（中国）有限公司 | Repeater station carrier fluctuation calibration method and device |
| WO2016177161A1 (en) * | 2015-07-10 | 2016-11-10 | 中兴通讯股份有限公司 | Downlink carrier flatness compensation method and device |
| CN106936504A (en) * | 2016-12-27 | 2017-07-07 | 南京泰通科技股份有限公司 | 450MHZ repeaters Ethernet single fiber optical transmitter and receiver with light loss automatic gain compensation |
-
2009
- 2009-07-31 CN CN200910063394A patent/CN101621323A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917220A (en) * | 2010-08-20 | 2010-12-15 | 武汉虹信通信技术有限责任公司 | Repeater for eliminating near-far effect |
| CN101917220B (en) * | 2010-08-20 | 2013-03-20 | 武汉虹信通信技术有限责任公司 | Repeater for eliminating near-far effect |
| WO2011131155A2 (en) * | 2011-06-09 | 2011-10-27 | 华为技术有限公司 | Method and device for compensating power according to frequency |
| WO2011131155A3 (en) * | 2011-06-09 | 2012-05-03 | 华为技术有限公司 | Method and device for compensating power according to frequency |
| CN103716096A (en) * | 2012-09-29 | 2014-04-09 | 京信通信系统（中国）有限公司 | Repeater station carrier fluctuation calibration method and device |
| CN103716096B (en) * | 2012-09-29 | 2016-06-15 | 京信通信系统（中国）有限公司 | Repeater carrier wave fluctuation calibration steps and device |
| CN102904628A (en) * | 2012-10-11 | 2013-01-30 | 三维通信股份有限公司 | Consistency compensation method for gains of digital frequency-selecting repeater |
| WO2016177161A1 (en) * | 2015-07-10 | 2016-11-10 | 中兴通讯股份有限公司 | Downlink carrier flatness compensation method and device |
| CN106936504A (en) * | 2016-12-27 | 2017-07-07 | 南京泰通科技股份有限公司 | 450MHZ repeaters Ethernet single fiber optical transmitter and receiver with light loss automatic gain compensation |
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Application publication date: 20100106 |