CN106130674B - A kind of leakage of repeater in-band carrier inhibits test method and device - Google Patents
A kind of leakage of repeater in-band carrier inhibits test method and device Download PDFInfo
- Publication number
- CN106130674B CN106130674B CN201610410967.6A CN201610410967A CN106130674B CN 106130674 B CN106130674 B CN 106130674B CN 201610410967 A CN201610410967 A CN 201610410967A CN 106130674 B CN106130674 B CN 106130674B
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- repeater
- signal
- band carrier
- frequency
- carrier leakage
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/354—Adjacent channel leakage power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/401—Monitoring; Testing of relay systems with selective localization
- H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
Abstract
Inhibition test method is leaked the invention discloses a kind of repeater in-band carrier and device, method include:Signal link is sent to repeater and opens order, to open a signal transmission link of the repeater；Signal output order is sent to signal generator, so that the signal generator generates the carrier signal Si for being input to i-th of channel in the working frequency range of the repeater；The working frequency range for adjusting BREATHABLE BANDWIDTH filter is fa measures Si in fa to several harmonic component points generated to the repeater between fi to fi, and by frequency spectrograph；The working frequency range for adjusting BREATHABLE BANDWIDTH filter is fi measures Si in fi to several harmonic component points generated to the repeater between fb to fb, and by the frequency spectrograph；According to all harmonic component points, obtain corresponding to i-th of channel in-band carrier leakage inhibit ratio and the repeater in-band carrier leakage inhibition ratio.The present invention can effectively improve the accuracy that the in-band carrier leakage measured inhibits ratio.
Description
Technical field
The present invention relates to testing field, more particularly to a kind of repeater in-band carrier leakage inhibits test method and device.
Background technology
The important parameter inhibited than being repeater is leaked with interior in-band carrier.When repeater, one of channel has
When carrier signal inputs, it is possible to several harmonic components are formed on other channels in repeater work band, wherein useful
The ratio between the harmonic component value of carrier wave (channel for having carrier signal to input) and maximum power is called in-band carrier leakage and inhibits ratio.
Due to test in-band carrier leakage inhibit than when, it is spuious that the carrier signal of input can generate some to frequency spectrograph itself
Harmonic component, the spuious harmonic component in this part is not belonging to repeater itself, so as to cause in final calculated band
Carrier leak inhibits the error more larger than with physical presence.
Invention content
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of repeater in-band carrier leakage inhibition test side
Method and device, by test the leakage of repeater in-band carrier inhibit than when the carrier signal of input is inhibited, to eliminate frequency
The spuious harmonic component that spectrometer is generated due to carrier signal improves the accuracy that the in-band carrier leakage measured inhibits ratio.
On the one hand the embodiment of the present invention provides a kind of leakage of repeater in-band carrier and inhibits the test method to include：
Signal link is sent to repeater and opens order, to open a signal transmission link of the repeater；
Signal output order is sent to signal generator, so that signal generator generation is input to the repeater
The carrier signal Si of i-th of channel in working frequency range；Wherein, the frequency of Si is i-th of channel in the signal transmission
The centre frequency fi of link；
The working frequency range for adjusting BREATHABLE BANDWIDTH filter is fa measures Si in fa to right between fi to fi, and by frequency spectrograph
Several harmonic component points that the repeater generates；Wherein, fa is the initial frequency of the working frequency range of the repeater；Its
In, the both ends of the BREATHABLE BANDWIDTH filter are connected to the input terminal of the output end and the frequency spectrograph of the repeater；
Adjust BREATHABLE BANDWIDTH filter working frequency range be fi to fb, and by the frequency spectrograph measure Si fi to fb it
Between to the repeater generate several harmonic component points；Wherein, fb is the termination frequency of the working frequency range of the repeater；
According to Si fa between fi and fi between fb to the repeater generate all harmonic component points, obtain
Inhibit ratio to the in-band carrier leakage corresponding to i-th of channel；
The corresponding in-band carrier leakage of all channels in the working frequency range of the repeater is inhibited into the maximum value in ratio
In-band carrier leakage as the repeater inhibits ratio.
More preferably, it is described according to Si fa between fi and fi between fb to the repeater generate
All harmonic component points obtain the in-band carrier leakage corresponding to i-th of channel and inhibit ratio, specially：
By Si fa between fi and fi between fb to the repeater generate all harmonic component points most
Big value inhibits ratio as the in-band carrier leakage corresponding to i-th of channel.
More preferably, the repeater is GSM digital high-frequency amplification stations；The signal generator is GSM signal generators.
More preferably, the carrier signal that the signal generator generates is 8PSK signals.
More preferably, it is characterized in that, the signal transmission link is uplink or downlink.
On the other hand, the embodiment of the present invention provides a kind of repeater in-band carrier leakage inhibition test device, including：
Link control module opens order, to open one of the repeater for sending signal link to repeater
Signal transmission link；
Carrier signal generation module, for sending signal output order to signal generator, so that the signal generator
Generate the carrier signal Si for being input to i-th of channel in the working frequency range of the repeater；Wherein, the frequency of Si is described the
Centre frequency fi of the i channel in the signal transmission link；
First measurement module, the working frequency range for adjusting BREATHABLE BANDWIDTH filter are that fa is surveyed to fi, and by frequency spectrograph
Si is measured in fa to several harmonic component points generated to the repeater between fi；Wherein, fa is the work of the repeater
The initial frequency of frequency range；Wherein, the both ends of the BREATHABLE BANDWIDTH filter are connected to output end and the institute of the repeater
State the input terminal of frequency spectrograph；
Second measurement module, the working frequency range for adjusting BREATHABLE BANDWIDTH filter are fi to fb, and pass through the frequency spectrum
Instrument measures Si in fi to several harmonic component points generated to the repeater between fb；Wherein, fb is the repeater
The termination frequency of working frequency range；
Inhibit than computing module, for being generated between fi and in fi between fb to the repeater in fa according to Si
All harmonic component points, obtain corresponding to i-th of channel in-band carrier leakage inhibit ratio；
Inhibit than determining module, for letting out the corresponding in-band carrier of all channels in the working frequency range of the repeater
Leakage inhibits the maximum value than in inhibit ratio as the in-band carrier leakage of the repeater.
More preferably, the computing module is specifically used for：By Si fa between fi and in fi to right between fb
The maximum value for all harmonic component points that the repeater generates, as the in-band carrier leakage corresponding to i-th of channel
Inhibit ratio.
More preferably, the repeater is GSM digital high-frequency amplification stations；The signal generator is GSM signal generators.
More preferably, the carrier signal that the signal generator generates is 8PSK signals.
More preferably, the signal transmission link is uplink or downlink
Implement the embodiment of the present invention, has the advantages that：
In-band carrier leakage in repeater provided in an embodiment of the present invention inhibits test method to be filtered by a BREATHABLE BANDWIDTH
The working frequency range of repeater is divided into two frequency ranges and tested by device, and wherein cut-point is the frequency of carrier signal, to have
The carrier signal for inhibiting to effect input, eliminates the spuious harmonic component that frequency spectrograph is generated due to carrier signal, and raising measures
In-band carrier leakage inhibit ratio accuracy.Meanwhile the embodiment of the present invention is also provided in the repeater band for executing the above method
Carrier leak inhibits test device.
Description of the drawings
Fig. 1 is the flow signal that a kind of repeater in-band carrier leakage provided in an embodiment of the present invention inhibits test method
Figure.
Specific implementation mode
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 describes, 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, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
It is the stream that a kind of repeater in-band carrier leakage provided in an embodiment of the present invention inhibits test method referring to Fig. 1
Journey schematic diagram, including：
S101 sends signal link to repeater and opens order, to open a signal transmission link of the repeater；
The signal transmission link can be uplink or downlink, only open one of them every time and close another；
S102 sends signal output order to signal generator so that signal generator generation be input to it is described straight
Put the carrier signal Si of i-th of channel in the working frequency range at station；Wherein, the frequency of Si is i-th of channel in the letter
The centre frequency fi of number transmission link；
S103, the working frequency range for adjusting BREATHABLE BANDWIDTH filter is fa measures Si in fa to fi to fi, and by frequency spectrograph
Between to the repeater generate several harmonic component points；Wherein, fa is the starting frequency of the working frequency range of the repeater
Rate；Wherein, the both ends of the BREATHABLE BANDWIDTH filter be connected to the repeater output end and the frequency spectrograph it is defeated
Enter end；
Bandpass filter refers to that can decline by the frequency component in a certain frequency range but by the frequency component of other ranges
The filter for reducing to extremely low level is opposite with the concept of bandstop filter.Variable band-pass filter refers to centre frequency and bandwidth
Adjustable bandpass filter.
S104, the working frequency range for adjusting BREATHABLE BANDWIDTH filter is fi measures Si in fi to fb, and by the frequency spectrograph
To several harmonic component points generated to the repeater between fb；Wherein, fb is the end of the working frequency range of the repeater
Only frequency；
S105, according to Si in fa between fi and in fi to all harmonic components generated to the repeater between fb
Point obtains the in-band carrier leakage corresponding to i-th of channel and inhibits ratio；
S106 inhibits the corresponding in-band carrier leakage of all channels in the working frequency range of the repeater more most than in
Big value inhibits ratio as the in-band carrier leakage of the repeater.
Wherein, step S105 is specially：Si generates the repeater between fb between fi and in fi in fa
All harmonic component points maximum value, as corresponding to i-th of channel in-band carrier leakage inhibit ratio.
In the present embodiment, the repeater is GSM digital high-frequency amplification stations；The signal generator is GSM signal generators；
The carrier signal that the signal generator generates is 8PSK signals.
Working frequency range, that is, fa~fb of the repeater is fixed, it is assumed that the GSM digital high-frequency amplification stations of cellular band work
For frequency range if it is 885MHz----909MHz, working channel number and corresponding uplink and downlink operating center frequency are as shown in the table：
It is leaked below in the in-band carrier of uplink for the repeater of 885MHz----909MHz with measuring working frequency range
Inhibit to illustrate the course of work of the invention for ratio：
Step 1 opens direct end uplink link, closes downlink.
(channel number is the uplink working channel center frequency corresponding to No. 0 by step 2, control signal generator output 890MHz
Rate) GSM 8PSK carrier signals.
Step 3：The working frequency range initial frequency for adjusting BREATHABLE BANDWIDTH filter is 885MHz (initial frequency of repeater),
Termination frequency is 890MHz (frequency of carrier signal).
Step 4：By frequency spectrograph measure carrier signal between 885MHz to 890MHz to repeater generate several
Harmonic component point.
Step 5：The working frequency range initial frequency for adjusting BREATHABLE BANDWIDTH filter is 890MHz (frequency of carrier signal), eventually
Only frequency is 909MHZ.
Step 6：Tester measures the GSM in variable band-pass filter working frequency range by frequency spectrograph automatic testing software
Digital high-frequency amplification station in-band carrier leakage signal power.
Step 7：Judge whether GSM digital high-frequency amplification station all working channels all test completion, if all channels are not surveyed
It has tried to execute step 2, if all channel tests are complete to then follow the steps 8
Step 8：Tester opens downlink by GSM digital high-frequency amplification station debugging softwares, closes uplink, repeats
Above step tests GSM digital high-frequency amplification station downlink in-band carrier leakage signal power.
Step 9：Inhibit ratio by the way that repeater uplink and downlink in-band carrier signals leakiness is calculated.
On the other hand, the embodiment of the present invention provides a kind of repeater in-band carrier leakage inhibition test device, including：
Link control module opens order, to open one of the repeater for sending signal link to repeater
Signal transmission link；
Carrier signal generation module, for sending signal output order to signal generator, so that the signal generator
Generate the carrier signal Si for being input to i-th of channel in the working frequency range of the repeater；Wherein, the frequency of Si is described the
Centre frequency fi of the i channel in the signal transmission link；
First measurement module, the working frequency range for adjusting BREATHABLE BANDWIDTH filter are that fa is surveyed to fi, and by frequency spectrograph
Si is measured in fa to several harmonic component points generated to the repeater between fi；Wherein, fa is the work of the repeater
The initial frequency of frequency range；Wherein, the both ends of the BREATHABLE BANDWIDTH filter are connected to output end and the institute of the repeater
State the input terminal of frequency spectrograph；
Second measurement module, the working frequency range for adjusting BREATHABLE BANDWIDTH filter are fi to fb, and pass through the frequency spectrum
Instrument measures Si in fi to several harmonic component points generated to the repeater between fb；Wherein, fb is the repeater
The termination frequency of working frequency range；
Inhibit than computing module, for being generated between fi and in fi between fb to the repeater in fa according to Si
All harmonic component points, obtain corresponding to i-th of channel in-band carrier leakage inhibit ratio；
Inhibit than determining module, for letting out the corresponding in-band carrier of all channels in the working frequency range of the repeater
Leakage inhibits the maximum value than in inhibit ratio as the in-band carrier leakage of the repeater.
More preferably, the computing module is specifically used for：By Si fa between fi and in fi to right between fb
The maximum value for all harmonic component points that the repeater generates, as the in-band carrier leakage corresponding to i-th of channel
Inhibit ratio.
More preferably, the repeater is GSM digital high-frequency amplification stations；The signal generator is GSM signal generators.
More preferably, the carrier signal that the signal generator generates is 8PSK signals.
More preferably, the signal transmission link is uplink or downlink
In-band carrier leakage in repeater provided in an embodiment of the present invention inhibits test method to be filtered by a BREATHABLE BANDWIDTH
The working frequency range of repeater is divided into two frequency ranges and tested by device, and wherein cut-point is the frequency of carrier signal, to have
The carrier signal for inhibiting to effect input, eliminates the spuious harmonic component that frequency spectrograph is generated due to carrier signal, and raising measures
In-band carrier leakage inhibit ratio accuracy.Meanwhile the embodiment of the present invention is also provided in the repeater band for executing the above method
Carrier leak inhibits test device.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (RandomAccess
Memory, RAM) etc..
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of repeater in-band carrier leakage inhibits test method, which is characterized in that including：
Signal link is sent to repeater and opens order, to open a signal transmission link of the repeater；
Signal output order is sent to signal generator, so that the signal generator generates the work for being input to the repeater
The carrier signal Si of i-th of channel in frequency range；Wherein, the frequency of Si is i-th of channel in the signal transmission link
Centre frequency fi；
Adjust BREATHABLE BANDWIDTH filter working frequency range be fa to fi, and by frequency spectrograph measure Si fa between fi to described
Several harmonic component points that repeater generates；Wherein, fa is the initial frequency of the working frequency range of the repeater；Wherein, institute
State BREATHABLE BANDWIDTH filter both ends be connected to the repeater output end and the frequency spectrograph input terminal；
The working frequency range for adjusting BREATHABLE BANDWIDTH filter is fi measures Si in fi to right between fb to fb, and by the frequency spectrograph
Several harmonic component points that the repeater generates；Wherein, fb is the termination frequency of the working frequency range of the repeater；
According to Si fa between fi and fi between fb to the repeater generate all harmonic component points, obtain institute
It states the in-band carrier leakage corresponding to i-th of channel and inhibits ratio；
Using the corresponding in-band carrier leakage of all channels in the working frequency range of the repeater inhibit the maximum value in ratio as
The in-band carrier leakage of the repeater inhibits ratio；
It is described according to Si fa between fi and fi between fb to the repeater generate all harmonic component points, obtain
Inhibit ratio to the in-band carrier leakage corresponding to i-th of channel, specially：
By Si fa between fi and fi between fb to the repeater generate all harmonic component points maximum value,
Inhibit ratio as the in-band carrier leakage corresponding to i-th of channel.
2. in-band carrier leakage in repeater as described in claim 1 inhibits test method, which is characterized in that the repeater is
GSM digital high-frequency amplification stations；The signal generator is GSM signal generators.
3. in-band carrier leakage in repeater as described in claim 1 inhibits test method, which is characterized in that the signal occurs
The carrier signal that device generates is 8PSK signals.
4. in-band carrier leakage in repeater as described in any one of claims 1 to 3 inhibits test method, which is characterized in that institute
It is uplink or downlink to state signal transmission link.
5. a kind of repeater in-band carrier leakage inhibits test device, which is characterized in that including：
Link control module opens order, to open a signal of the repeater for sending signal link to repeater
Transmission link；
Carrier signal generation module, for sending signal output order to signal generator, so that the signal generator generates
It is input to the carrier signal Si of i-th of channel in the working frequency range of the repeater；Wherein, the frequency of Si is described i-th
Centre frequency fi of the channel in the signal transmission link；
First measurement module, the working frequency range for adjusting BREATHABLE BANDWIDTH filter are that fa measures Si to fi, and by frequency spectrograph
In fa to several harmonic component points generated to the repeater between fi；Wherein, fa is the working frequency range of the repeater
Initial frequency；Wherein, the both ends of the BREATHABLE BANDWIDTH filter are connected to the output end of the repeater and the frequency
The input terminal of spectrometer；
Second measurement module, the working frequency range for adjusting BREATHABLE BANDWIDTH filter are that fi is surveyed to fb, and by the frequency spectrograph
Si is measured in fi to several harmonic component points generated to the repeater between fb；Wherein, fb is the work of the repeater
The termination frequency of frequency range；
Inhibit, than computing module, to be used for according to Si in fa between fi and in fi to the institute for generating the repeater between fb
There is harmonic component point, obtains the in-band carrier leakage corresponding to i-th of channel and inhibit ratio；
Inhibit than determining module, for pressing down the corresponding in-band carrier leakage of all channels in the working frequency range of the repeater
The maximum value made than in inhibits ratio as the in-band carrier leakage of the repeater；
The computing module is specifically used for：By Si in fa between fi and in fi to the institute generated to the repeater between fb
The maximum value for having harmonic component point inhibits ratio as the in-band carrier leakage corresponding to i-th of channel.
6. in-band carrier leakage in repeater as claimed in claim 5 inhibits test device, which is characterized in that the repeater is
GSM digital high-frequency amplification stations；The signal generator is GSM signal generators.
7. in-band carrier leakage in repeater as claimed in claim 5 inhibits test device, which is characterized in that the signal occurs
The carrier signal that device generates is 8PSK signals.
8. as in-band carrier leakage in claim 5 to 7 any one of them repeater inhibits test device, which is characterized in that institute
It is uplink or downlink to state signal transmission link.
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| CN201610410967.6A CN106130674B (en) | 2016-06-12 | 2016-06-12 | A kind of leakage of repeater in-band carrier inhibits test method and device |
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| CN106130674B true CN106130674B (en) | 2018-08-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114665990B (en) * | 2022-03-10 | 2024-03-22 | 深圳市欣博跃电子有限公司 | Wireless repeater testing method and device, electronic equipment and medium |
| CN115426227A (en) * | 2022-08-05 | 2022-12-02 | 四川天邑康和通信股份有限公司 | Method and system for setting carrier frequency of repeater and repeater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116375A (en) * | 1993-12-29 | 1996-02-07 | 美国电报电话公司 | Quadrature modulator with adaptive suppression of carrier leakage |
| CN2631164Y (en) * | 2003-07-03 | 2004-08-04 | 黄谦 | 3.5G broadband wireless accessing direct-playing station |
| CN1708967A (en) * | 2002-10-25 | 2005-12-14 | Gct半导体公司 | Radio receiver and method for AM suppression and dc-offset removal |
| CN103701420A (en) * | 2013-11-27 | 2014-04-02 | 广州润芯信息技术有限公司 | Transmitter gain distribution method and circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7505427B2 (en) * | 2004-05-07 | 2009-03-17 | Samsung Electronics Co., Ltd. | Apparatus and method for improving signal-to-noise ratio in a multi-carrier CDMA communication system |
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2016
- 2016-06-12 CN CN201610410967.6A patent/CN106130674B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116375A (en) * | 1993-12-29 | 1996-02-07 | 美国电报电话公司 | Quadrature modulator with adaptive suppression of carrier leakage |
| CN1708967A (en) * | 2002-10-25 | 2005-12-14 | Gct半导体公司 | Radio receiver and method for AM suppression and dc-offset removal |
| CN2631164Y (en) * | 2003-07-03 | 2004-08-04 | 黄谦 | 3.5G broadband wireless accessing direct-playing station |
| CN103701420A (en) * | 2013-11-27 | 2014-04-02 | 广州润芯信息技术有限公司 | Transmitter gain distribution method and circuit |
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