CN105848172B - A kind of adaptation method and device of the covering of GSM base discharge signal - Google Patents
A kind of adaptation method and device of the covering of GSM base discharge signal Download PDFInfo
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- CN105848172B CN105848172B CN201610325630.5A CN201610325630A CN105848172B CN 105848172 B CN105848172 B CN 105848172B CN 201610325630 A CN201610325630 A CN 201610325630A CN 105848172 B CN105848172 B CN 105848172B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The invention discloses the adaptation method and device of a kind of covering of GSM base discharge signal, the wherein methods of adjustment of downlink signal are as follows: obtains initial downlink gain adjustment value according to pilot signal power value, output power and the last downlink gain adjustment value used；The first downlink gain readjustment value is obtained according to maximum carrier number；The second downlink gain readjustment value is obtained according to EDGE signal；Target downlink gain adjustment value is calculated according to above three value.The method of adjustment of uplink signal are as follows: balance adaptation parameter is covered according to signal and the last downlink gain adjustment value used obtains initial uplink gain adjustment value；According to pilot signal power value and base station down output power value, the first uplink gain readjustment value is obtained；According to the noise floor value and noise floor index request of uplink signal, the second uplink gain readjustment value is obtained；Target uplink gain adjustment value is calculated according to above three value.By the adjusting to uplink and downlink signals gain, uplink and downlink signals covering balance is realized.
Description
The application be in submission on December 27th, 2013 Patent Office of the People's Republic of China, application No. is 201310747271.9, invention names
The referred to as divisional application of the Chinese patent application of " a kind of adaptation method and device of the covering of GSM base discharge signal ".
Technical field
The present invention relates to a kind of auxiliary amplifying technique of base station GSM, in particular to a kind of adaptation of GSM base discharge signal covering
Method and device.
Background technique
Currently, global system for mobile communications (Global System For Mobile Communications, GSM) base
It stands to expand signal coverage distance, generallys use the base station GSM+peripheral auxiliary equipment (base is put) form, therefore, uplink and downlink letter
Number practical coverage area influenced by base place system, and whether the covering of the uplink and downlink signals of base place system balances and directly affects
To the covering effect of signals of base station.
Currently, the uplink and downlink signals covering adjustment of base place system is when base place system opens station, You Kaizhan personnel come manually
It is configured, so the effect at the split station of the working experience for opening station personnel has large effect.Station personnel are opened to need to make equipment
It is analyzed with the case where environment, by the monitoring software on PC (Personal Computer, PC), to equipment
Running parameter is configured.Wherein, the upstream attenuation value of base place system, the two parameters of downstream attenuation values directly influence base station
Covering effect of signals.If uplink and downlink signals are uneven, will cause mobile terminal can receive downlink signal (on such as mobile phone
Show that signal is normal), it but can not normal communication.
Base place system opens station staff to guarantee that equipment reaches optimum Working, it is necessary to carry various detecting instruments
(frequency spectrograph, signal source, attenuator etc.), detects base station and ambient enviroment, obtains the reference information for opening station.Existing
Test platform, including calibration instrument inherent parameters are built in field, and the operation such as connection is very inconvenient, if connection is wrong accidentally
Accidentally, it is likely that instrument and equipment is damaged.
As the intelligence of embedded device is continuously improved, in order to reduce artificial running cost, eliminates human factor and bring
Error, base place system open station personnel there is an urgent need to can provide automatically melt station process base put equipment.And it realizes on adaptive
Downlink signal covering balance is exactly the key for melting station automatically.
Summary of the invention
The embodiment of the present invention provides the adaptation method and device of a kind of GSM base place system signal covering, existing to reduce
The instrument and equipment quantity that the work of part commissioning and needs that station personnel are opened in technology carry, improves working efficiency.
Specific technical solution provided in an embodiment of the present invention is as follows:
In a first aspect, a kind of adaptation method of global system for mobile communications GSM base discharge signal covering, comprising:
GSM signal is received, is screened out from it downlink signal, and filter out pilot signal from the downlink signal；
According to the performance number of the pilot signal, preset output power and the last downlink gain adjustment value used,
Obtain initial downlink gain adjustment value；
Maximum carrier number is detected, the first downlink gain readjustment value is obtained according to the maximum carrier number；
Enhanced data rates for gsm evolution technology EDGE signal is detected, the second downlink is obtained according to the EDGE signal and is increased
Beneficial readjustment value；
It is returned according to the initial downlink gain adjustment value, the first downlink gain readjustment value and the second downlink gain
Tone pitch calculates target downlink gain adjustment value；
The transmission power of the downlink signal is adjusted according to the target downlink gain adjustment value.
In this way, just realizing the adjusting of the coverage area of adaptive downlink signal, reduce human factor bring mistake
Difference reduces manually-operated cost while improving work efficiency.
With reference to first aspect, in the first possible implementation, GSM signal is received, downlink signal is screened out from it
Afterwards, further comprise:
The transmission power of the downlink signal is adjusted according to specified downlink gain adjustment value, wherein the finger
Fixed downlink gain adjustment value is downlink gain adjustment value initial set value, alternatively, the last downlink gain adjustment value used.
With reference to first aspect, in the second possible implementation, according to the performance number of the pilot signal, preset
Output power and the last downlink gain adjustment value used, obtain initial downlink gain adjustment value, comprising:
The initial downlink gain adjustment value is obtained using following formula:
The downlink gain adjustment value that initial downlink gain adjustment value=last time uses+preset output power
The performance number of pilot signal
It in this way, can be by the way that initial downlink gain adjustment value be calculated.
With reference to first aspect, in the third possible implementation, maximum carrier number is detected, according to the maximum carrier wave
Number obtains the first downlink gain readjustment value, comprising:
According to the maximum carrier number, judge that the performance number of the pilot signal accounts for the ratio of the performance number of the downlink signal
Example, and it is calculated using the following equation the first downlink gain readjustment value:
In this way, according to the performance number of pilot signal ratio shared in the performance number of downlink signal and base station maximum carrier wave
Relationship between number can be calculated the first downlink gain readjustment value.
With reference to first aspect, in the fourth possible implementation, EDGE signal is detected, is obtained according to the EDGE signal
Obtain the second downlink gain readjustment value, comprising:
Determine that the second downlink gain readjustment value is 3db when having the EDGE signal；Otherwise the second downlink gain
Readjustment value is 0db.
By detection either with or without this mode of EDGE signal, the second downlink gain readjustment value is arranged according to different situations,
The adjusting of downlink gain can be made more accurate.
With reference to first aspect, in a fifth possible implementation, according to the initial downlink gain adjustment value, described
First downlink gain readjustment value and the second downlink gain readjustment value, calculate target downlink gain adjustment value, comprising:
It is calculated using the following equation the target downlink gain adjustment value:
Target downlink gain adjustment value=initial downlink gain adjustment value the-the first downlink gain readjustment the-the second downlink of value increases
Beneficial readjustment value.
In this way, initial downlink gain adjustment value is adjusted according to aforementioned two be calculated readjustment value
To obtaining final target downlink gain adjustment value, compared with the prior art in open the manual operation of station personnel, reduce artificial
Because bring error, improves accuracy and working efficiency.
Second aspect, a kind of adaptation method of global system for mobile communications GSM base discharge signal covering, comprising:
GSM signal is received, is screened out from it uplink signal, and determine the noise floor value of the uplink signal, Yi Jicong
Downlink signal is filtered out in the GSM signal, and filters out pilot signal from the downlink signal；
Balance adaptation parameter and the last downlink gain adjustment value used are covered according to preset signal, is obtained on initial
Row gain adjustment value；
Base station down output power value is detected, according to the performance number of the pilot signal and the base station down output power
Value obtains the first uplink gain readjustment value；
According to the noise floor value and noise floor index request of the uplink signal, the second uplink gain readjustment is obtained
Value；
It is returned according to the initial uplink gain adjustment value, the first uplink gain readjustment value and the second uplink gain
Tone pitch calculates target uplink gain adjustment value；
The transmission power of the uplink signal is adjusted according to the target uplink gain adjustment value.
In this way, the coverage area of corresponding downlink signal, adaptively adjusts the coverage area of uplink signal
Section, to realize the covering balance of uplink and downlink signals.
In conjunction with second aspect, in the first possible implementation, GSM signal is received, uplink signal is screened out from it
Afterwards, further comprise:
The transmission power of the uplink signal is adjusted according to specified uplink gain adjustment value, wherein the finger
Fixed uplink gain adjustment value is uplink gain adjustment value initial set value, alternatively, the last uplink gain adjustment value used.
In conjunction with second aspect, in the second possible implementation, balance adaptation parameter is covered according to preset signal
The downlink gain adjustment value used with the last time obtains initial uplink gain adjustment value, comprising:
The downlink gain adjustment value used according to the preset signal covering balance adaptation parameter, the last time and institute
Preset mapping relations between initial uplink gain adjustment value are stated, the initial uplink gain adjustment value is obtained.
In this way, consider the last downlink gain adjustment value used, select initial uplink gain adjustment value, have
It is balanced conducive to the covering of uplink and downlink signals.
In conjunction with second aspect, in the third possible implementation, base station down output power value is detected, according to described
The performance number of pilot signal and the base station down output power value obtain the first uplink gain readjustment value, comprising:
The first uplink gain readjustment value is obtained using following formula:
First uplink gain readjustment value=base station down output power value-pilot signal performance number.
In this way, being calculated by the performance number of pilot signal and the down output power value of base station detected
Obtain the first uplink gain readjustment value.
In conjunction with second aspect, in the fourth possible implementation, according to the noise floor value of the uplink signal and
Noise floor index request obtains the second uplink gain readjustment value, comprising:
When determining that value is made an uproar lower than the noise floor index request in the uplink signal bottom, the second uplink gain readjustment
Value is 0db；Otherwise the initial uplink signal gain adjusted value is reduced, makes the noise floor value of the uplink signal no more than institute
Noise floor index request is stated, the second uplink gain readjustment value, which is equal to the initial uplink signal gain adjusted value, to be reduced
Yield value.
In this way, when uplink signal bottom make an uproar value meet the noise floor index request of base place system when, just without second
Readjustment, otherwise needs to reduce uplink signal bottom and makes an uproar value to meet index request, this call-back manner can make to uplink gain
It is more accurate to adjust.
In conjunction with second aspect, in a fifth possible implementation, according to the initial uplink gain adjustment value, described
First uplink gain readjustment value and the second uplink gain readjustment value, calculate target uplink gain adjustment value, comprising:
It is calculated using the following equation the target uplink gain adjustment value:
Target uplink gain adjustment value=initial uplink gain adjustment value the-the first uplink gain readjustment the-the second uplink of value increases
Beneficial readjustment value.
In this way, initial uplink gain adjustment value is adjusted according to aforementioned two be calculated readjustment value
To obtaining final target uplink gain adjustment value, compared with the prior art in open the manual operation of station personnel, reduce artificial
Because bring error, improves accuracy and working efficiency.
The third aspect, a kind of adaptive device of global system for mobile communications GSM base discharge signal covering, comprising:
Receiving module is screened out from it downlink signal, and screen from the downlink signal for receiving GSM signal
Pilot signal out；
Module is obtained, for using down according to the performance number of the pilot signal, preset output power and last time
Row gain adjustment value obtains initial downlink gain adjustment value；
First callback module obtains the first downlink gain according to the maximum carrier number and returns for detecting maximum carrier number
Tone pitch；
Second callback module is believed for detecting enhanced data rates for gsm evolution technology EDGE signal according to the EDGE
Number obtain the second downlink gain readjustment value；
Computing module, for according to the initial downlink gain adjustment value, the first downlink gain readjustment value and described
Second downlink gain readjustment value, calculates target downlink gain adjustment value；
Module is adjusted, for adjusting according to the target downlink gain adjustment value to the transmission power of the downlink signal
It is whole.
In this way, the adjusting of the coverage area of adaptive downlink signal is realized by the collaborative work of above-mentioned each module,
Reduce human factor bring error, reduce manually-operated cost while improving work efficiency.
In conjunction with the third aspect, in the first possible implementation, the adjustment module is further used for:
GSM signal is received in the receiving module, after being screened out from it downlink signal, according to specified downlink gain adjustment
Value is adjusted the transmission power of the downlink signal, wherein the specified downlink gain adjustment value is downlink gain tune
Whole value initial set value, alternatively, the last downlink gain adjustment value used.
In conjunction with the third aspect, in the second possible implementation, the acquisition module is according to the pilot signal
Performance number, preset output power and the last downlink gain adjustment value used, obtain initial downlink gain adjustment value, packet
It includes:
The acquisition module obtains the initial downlink gain adjustment value using following formula:
The downlink gain adjustment value that initial downlink gain adjustment value=last time uses+preset output power
The performance number of pilot signal
In this way, obtaining module can be by being calculated initial downlink gain adjustment value.
In conjunction with the third aspect, in the third possible implementation, first callback module detects maximum carrier number,
The first downlink gain readjustment value is obtained according to the maximum carrier number, comprising:
First callback module judges that the performance number of the pilot signal accounts for the downlink according to the maximum carrier number
The ratio of the performance number of signal, and it is calculated using the following equation the first downlink gain readjustment value:
In this way, according to the performance number of pilot signal ratio shared in the performance number of downlink signal and base station maximum carrier wave
Relationship between number, the first callback module is by can be calculated the first downlink gain readjustment value.
In conjunction with the third aspect, in the fourth possible implementation, second callback module detects EDGE signal, root
The second downlink gain readjustment value is obtained according to the EDGE signal, comprising:
Second callback module determines when having the EDGE signal, sets the second downlink gain readjustment value to
3db；Otherwise 0db is set by the second downlink gain readjustment value.
By detection either with or without this mode of EDGE signal, the second downlink is arranged according to different situations in the second callback module
Gain readjustment value, can make the adjusting of downlink gain more accurate.
In conjunction with the third aspect, in a fifth possible implementation, the computing module increases according to the initial downlink
Beneficial adjusted value, the first downlink gain readjustment value and the second downlink gain readjustment value, calculate target downlink gain tune
Whole value, comprising:
The computing module is calculated using the following equation the target downlink gain adjustment value:
Target downlink gain adjustment value=initial downlink gain adjustment value the-the first downlink gain readjustment the-the second downlink of value increases
Beneficial readjustment value.
In this way, computing module is according to aforementioned two be calculated readjustment value to initial downlink gain adjustment value
Be adjusted to obtaining final target downlink gain adjustment value, compared with the prior art in open the manual operation of station personnel, subtract
Lack artificially because of bring error, has improved accuracy and working efficiency.
Fourth aspect, a kind of adaptive device of global system for mobile communications GSM base discharge signal covering, comprising:
Receiving module is screened out from it uplink signal, and determine the bottom of the uplink signal for receiving GSM signal
Noise figure, and downlink signal is filtered out from the GSM signal, and filter out pilot signal from the downlink signal；
Module is obtained, for covering balance adaptation parameter and the last downlink gain adjustment used according to preset signal
Value obtains initial uplink gain adjustment value；
First callback module, for detecting base station down output power value, according to the performance number of the pilot signal and institute
Base station down output power value is stated, the first uplink gain readjustment value is obtained；
Second callback module is obtained for the noise floor value and noise floor index request according to the uplink signal
Second uplink gain readjustment value；
Computing module, for according to the initial uplink gain adjustment value, the first uplink gain readjustment value and described
Second uplink gain readjustment value, calculates target uplink gain adjustment value；
Module is adjusted, for adjusting according to the target uplink gain adjustment value to the transmission power of the uplink signal
It is whole.
In this way, the coverage area of corresponding downlink signal, above-mentioned modules cooperate, to uplink signal
Coverage area carries out automatic adjusument, to realize the covering balance of uplink and downlink signals.
In conjunction with fourth aspect, in the first possible implementation, the adjustment module is further used for:
GSM signal is received in the receiving module, after being screened out from it uplink signal, according to specified uplink gain adjustment
Value is adjusted the transmission power of the uplink signal, wherein the specified uplink gain adjustment value is uplink gain tune
Whole value initial set value, alternatively, the last uplink gain adjustment value used.
In conjunction with fourth aspect, in the second possible implementation, the acquisition module is covered according to preset signal
Balance adaptation parameter and the last downlink gain adjustment value used, obtain initial uplink gain adjustment value, comprising:
The module that obtains increases according to the downlink that the preset signal covering balance adaptation parameter, the last time use
Preset mapping relations between beneficial adjusted value and the initial uplink gain adjustment value obtain the initial uplink gain adjustment
Value.
In this way, consider the last downlink gain adjustment value used, obtain module and select initial uplink gain
Adjusted value is conducive to the covering balance of uplink and downlink signals.
In conjunction with fourth aspect, in the third possible implementation, the first callback module detection base station down is defeated
Performance number out obtains the first uplink gain and returns according to the performance number of the pilot signal and the base station down output power value
Tone pitch, comprising:
First callback module obtains the first uplink gain readjustment value using following formula:
First uplink gain readjustment value=base station down output power value-pilot signal performance number.
In this way, the first callback module pass through the down output power value of the performance number of pilot signal and base station that detect into
Row calculates, and the first uplink gain readjustment value can be obtained.
In conjunction with fourth aspect, in the fourth possible implementation, second callback module is believed according to the uplink
Number noise floor value and noise floor index request, obtain the second uplink gain readjustment value, comprising:
When second callback module determines that value is made an uproar lower than the noise floor index request in the uplink signal bottom, by institute
It states the second uplink gain readjustment value and is set as 0db；Otherwise, the initial uplink signal gain adjusted value is reduced, the uplink is made
The noise floor value of signal is not more than the noise floor index request, and the second uplink gain readjustment value is equal to described first
The yield value that beginning uplink signal gain adjustment value reduces.
In this way, when uplink signal bottom make an uproar value meet the noise floor index request of base place system when, the second callback module is just
Second is not carried out to initial uplink gain adjustment value to adjust back, otherwise, then reduce uplink signal bottom and make an uproar value to meet index request,
This call-back manner can make the adjusting to uplink gain more accurate.
In conjunction with fourth aspect, in a fifth possible implementation, the computing module increases according to the initial uplink
Beneficial adjusted value, the first uplink gain readjustment value and the second uplink gain readjustment value, calculate target uplink gain tune
Whole value, comprising:
The computing module is calculated using the following equation the target uplink gain adjustment value:
Target uplink gain adjustment value=initial uplink gain adjustment value the-the first uplink gain readjustment the-the second uplink of value increases
Beneficial readjustment value.
In this way, computing module is according to aforementioned two be calculated readjustment value to initial uplink gain adjustment value
Be adjusted to obtaining final target uplink gain adjustment value, compared with the prior art in open the manual operation of station personnel, subtract
Lack artificially because of bring error, has improved accuracy and working efficiency.
Detailed description of the invention
Fig. 1 is the frame diagram of base place system in the embodiment of the present invention；
Fig. 2 is downlink signal gain adjustment flow chart in the embodiment of the present invention；
Fig. 3 is uplink signal gain adjustment flow chart in the embodiment of the present invention；
Fig. 4 is downlink gain regulator structure chart in the embodiment of the present invention；
Fig. 5 is uplink gain regulator structure chart in the embodiment of the present invention.
Specific embodiment
Work is detected in order to reduce out the part of station personnel, human factor is avoided to put the influence of equipment working effect to base,
And then the accuracy and efficiency of work is improved, in the embodiment of the present invention, provide a kind of adaptation side of GSM base discharge signal covering
Method, in this method, base place system is by the adjusting to uplink and downlink signals gain, to realize the tune to uplink and downlink signals coverage area
Section.
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.
As shown in fig.1, base place system includes: the end DT (donor antenna port, donor in the embodiment of the present invention
Terminal) duplexer 1, the end MT (user antenna port, mobile terminal) duplexer 13, downlink gain control coremaking piece
2, uplink gain control coremaking piece 8, downlink radio frequency down-converter unit 3, upstream radio-frequency down-converter unit 9, downstream digital signal processing
Unit 4, digital uplink signal processing unit 10, downlink radio frequency upconverting unit 5, upstream radio-frequency upconverting unit 11, power amplifier list
Member 6, micro control processing unit 7, low noise unit 12.
As shown in fig.2, in the embodiment of the present invention, detailed process that base place system is adjusted the gain of downlink signal
It is as follows:
Step 200: base place system receives GSM signal, is screened out from it downlink signal, and filter out from downlink signal
Pilot signal.
In the embodiment of the present invention, the end DT duplexer 1 is after downlink signal is selected in isolation in GSM signal, first under
The current downlink gain adjustment value of row gain control coremaking piece 2 is adjusted the transmission power of downlink signal, wherein current downlink
Gain adjustment value can be the downlink gain adjustment value initial set value of system, be also possible to the last downlink gain tune used
Whole value, downlink gain adjustment value initial set value be exactly set in system initialization when base place system is restarted or newly powered on it is silent
Recognize value, the downlink gain adjustment value that the last time uses, which is exactly base place system, to be calculated according to last downlink signal and make after adjusting back
Target downlink gain adjustment value.Next, downlink radio frequency down-converter unit 3 is by downlink signal adjusted by radiofrequency signal
It is changed into intermediate-freuqncy signal, and digitized processing is carried out to it by downstream digital signal processing unit 4, it is single is sent to microcontroller processing
Downlink signal after 7 pairs of digitlizations of member is analyzed and processed, while downstream digital signal processing unit 4 is by the downlink after digitlization
Signal is then converted to intermediate-freuqncy signal, transfers to downlink radio frequency upconverting unit 5 that it is changed into radiofrequency signal from intermediate-freuqncy signal, finally
Above-mentioned downlink signal is amplified by power amplifier unit 6.
When downlink signal passes through entire base place system, will receive by the respective gain of internal system various pieces shadow
It rings, such as the end DT duplexer 1, downlink gain control coremaking piece 2, downlink radio frequency down-converter unit 3, downstream digital processing unit 4, downlink
RF up-converter unit 5 and power amplifier unit 6.But except downlink gain control coremaking piece 2 gain be it is controllable, other parts are all
Fixed gain.Wherein, playing the unit of most important amplification to the gain of downlink signal is power amplifier unit 6.
Step 210: base place system is according to the performance number of pilot signal, preset output power and the last downlink used
Gain adjustment value obtains initial downlink gain adjustment value.
In the embodiment of the present invention, following formula acquisition is can be used in initial downlink gain adjustment value:
The downlink gain adjustment value that initial downlink gain adjustment value=last time uses+preset output power-pilot tone letter
Number performance number formula (1)
Step 220: base place system detects base station maximum carrier number, obtains the first downlink gain according to base station maximum carrier number
Readjustment value.
In the embodiment of the present invention, the inverse of base station maximum carrier number, exactly the performance number of pilot signal is in downlink signal
Shared ratio value in performance number, according to the base station maximum carrier number detected, it can be determined that the performance number for going out pilot signal accounts for
The ratio of the performance number of downlink signal, then the first downlink gain readjustment value can be calculated using following formula:
Step 230: base place system detects enhanced data rates for gsm evolution technology (Enhanced Data Rate for
GSM Evolution, EDGE) signal, the second downlink gain readjustment value is obtained according to EDGE signal.
In the embodiment of the present invention, when base place system detects EDGE signal, just the second downlink gain readjustment value is arranged
0db then otherwise is set by the second downlink gain readjustment value for 3db.
Step 240: base place system is according under above-mentioned initial downlink gain adjustment value, the first downlink gain readjustment value and second
Row gain readjustment value, calculates target downlink gain adjustment value.
In the embodiment of the present invention, target downlink gain adjustment value can be used following formula and be calculated:
Target downlink gain adjustment value=initial downlink gain adjustment value the-the first downlink gain readjustment the-the second downlink of value increases
Benefit goes back to value adjusting formula (3)
Step 250: base place system is adjusted according to transmission power of the target downlink gain adjustment value to downlink signal.
In the embodiment of the present invention, target downlink gain adjustment value can come into force at once, be increased by micro control processing unit 7 to downlink
Benefit control chip 2 implements control, is adjusted in real time to the transmission power of downlink signal.
As shown in fig.3, in the embodiment of the present invention, detailed process that base place system is adjusted the gain of uplink signal
It is as follows:
Step 300: base place system receives GSM signal, is screened out from it uplink signal, and determines that the bottom of uplink signal is made an uproar
Sound value, and downlink signal is filtered out from GSM signal, and pilot signal is filtered out from downlink signal.
In the embodiment of the present invention, the end MT duplexer 13 is after uplink signal is selected in isolation in GSM signal, first according to upper
The current uplink gain adjustment value of row gain control coremaking piece 8 is adjusted the transmission power of uplink signal, wherein current uplink
Gain adjustment value can be the uplink gain adjustment value initial set value of system, be also possible to the last uplink gain tune used
Whole value, uplink gain adjustment value initial set value be exactly set in system initialization when base place system is restarted or newly powered on it is silent
Recognize value, the uplink gain adjustment value that the last time uses, which is exactly base place system, to be calculated according to last uplink signal and make after adjusting back
Target uplink gain adjustment value.Next, upstream radio-frequency down-converter unit 9 is by uplink signal adjusted by radiofrequency signal
It is changed into intermediate-freuqncy signal, and digitized processing is carried out to it by digital uplink signal processing unit 10, is sent to microcontroller processing
After uplink signal after 7 pairs of unit digitlizations is analyzed and processed, while digital uplink signal processing unit 10 will digitize again
Uplink signal be converted into intermediate-freuqncy signal, transfer to upstream radio-frequency upconverting unit 11 by its from intermediate-freuqncy signal be changed into radio frequency letter
Number, last above-mentioned uplink signal is amplified by low noise unit 12.
When uplink signal passes through entire base place system, will receive by the respective gain of internal system various pieces shadow
It rings, such as the end MT duplexer 13, uplink gain control coremaking piece 8, upstream radio-frequency down-converter unit 9, upstream digital processing unit 10, on
Row RF up-converter unit 11 and low noise unit 12.But except the gain of uplink gain control coremaking piece 8 is controllable, other portions
Dividing all is fixed gain.Wherein, playing the unit of most important amplification to the gain of uplink signal is low noise unit 12.
Step 310: base place system covers balance adaptation parameter and the last downlink gain used according to preset signal
Adjusted value obtains initial uplink gain adjustment value.
In the embodiment of the present invention, signal covering balance adaptation parameter considers that the use environment of base place system is specifically set
It sets, as in cell, market, mountain area, Along Railway etc., preset signal covering balance adaptation parameter difference.Upper one
The target that the secondary downlink gain adjustment value used, which is exactly base place system, to be calculated according to last downlink signal and use after adjusting back
Downlink gain adjustment value.Consult table 1 covers balance adaptation parameter, the last downlink gain tune used according to preset signal
Preset mapping relations between whole value and initial uplink gain adjustment value, obtain the initial uplink gain adjustment value.
Table 1
| Usage scenario (scene number) | Initial uplink gain adjustment value (dB) |
| Market covers (0) | The downlink gain adjustment value -3 that last time uses |
| MPS process (1) | The downlink gain adjustment value -3 that last time uses |
| Industrial area covers (2) | The downlink gain adjustment value -2 that last time uses |
| Mountain area covers (3) | The downlink gain adjustment value -1 that last time uses |
| Highway covers (4) | The downlink gain adjustment value -1 that last time uses |
| Railway covers (5) | The downlink gain adjustment value -1 that last time uses |
Step 320: base place system detects the down output power value of base station, according to the performance number of pilot signal and above-mentioned base
The down output power value stood obtains the first uplink gain readjustment value.
In the present embodiment, following formula acquisition is can be used in the first uplink gain readjustment value:
First uplink gain readjustment value=base station down output power value-pilot signal performance number formula (4)
Wherein, the first uplink gain readjustment value, that is, base station to repeater line loss.
Step 330: base place system obtains on second according to the noise floor value and noise floor index request of uplink signal
Row gain readjustment value.
Specifically, in the embodiment of the present invention, when base place system determines that uplink signal bottom value of making an uproar is wanted lower than noise floor index
When asking, then 0db is set by the second uplink gain readjustment value；Otherwise, initial uplink signal gain adjusted value is reduced, so that above-mentioned
The noise floor value of uplink signal is less than or equal to noise floor index request, the increasing that initial uplink signal gain adjusted value reduces
Benefit value, is exactly the second uplink gain readjustment value.
Step 340: base place system increases according to initial uplink gain adjustment value, the first uplink gain readjustment value and the second uplink
Beneficial readjustment value calculates target uplink gain adjustment value.
In the present embodiment, target uplink gain adjustment value can be used following formula and be calculated:
Target uplink gain adjustment value=initial uplink gain adjustment value the-the first uplink gain readjustment the-the second uplink of value increases
Benefit goes back to value adjusting formula (5)
Step 350: base place system adjusts the transmission power of uplink signal according to above-mentioned target uplink gain adjustment value
It is whole.
In the embodiment of the present invention, target uplink gain adjustment value can come into force at once, carry out to the transmission power of uplink signal
Adjustment in real time.
Based on the above embodiment, as shown in fig.4, in the embodiment of the present invention, downlink gain regulator 40 includes:
Receiving module 400 is screened out from it downlink signal, and filter out from downlink signal for receiving GSM signal
Pilot signal is specifically realized by the above-mentioned end DT duplexer 1.
Module 401 is obtained, for according to the performance number of pilot signal, preset output power and the last downlink used
Gain adjustment value obtains initial downlink gain adjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the embodiment of the present invention, module 401 is obtained using following formula and obtains initial downlink gain adjustment value:
The downlink gain adjustment value that initial downlink gain adjustment value=last time uses+preset output power-pilot tone letter
Number performance number formula (1)
First callback module 402 obtains the first downlink according to base station maximum carrier number for detecting base station maximum carrier number
Gain readjustment value is specifically realized by above-mentioned micro control processing unit 7.
In the embodiment of the present invention, the first callback module 402 judges the power of pilot signal according to base station maximum carrier number
Value accounts for the ratio of the performance number of the downlink signal, and is calculated using the following equation the first downlink gain readjustment value:
Second callback module 403 obtains the second downlink gain readjustment value according to EDGE signal for detecting EDGE signal,
Specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, when the second callback module 403, which determines, EDGE signal, the second downlink gain readjustment value is arranged
0db otherwise is set by the second downlink gain readjustment value for 3db.
Computing module 404, for being increased according to initial downlink gain adjustment value, the first downlink gain readjustment value and the second downlink
Beneficial readjustment value, calculates target downlink gain adjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, computing module 404 is calculated using the following equation target downlink gain adjustment value:
Target downlink gain adjustment value=initial downlink gain adjustment value the-the first downlink gain readjustment the-the second downlink of value increases
Benefit goes back to value adjusting formula (3)
Module 405 is adjusted, for being adjusted according to transmission power of the target downlink gain adjustment value to downlink signal, is had
Body is realized by above-mentioned downlink gain control coremaking piece 2.
In the embodiment of the present invention, adjustment module 405 is further used for: receiving GSM signal in receiving module 400, and therefrom
After filtering out downlink signal, adjustment module 405 is adjusted according to transmission power of the current downlink gain adjustment value to downlink signal
It is whole, wherein current downlink gain adjustment value is downlink gain adjustment value initial set value, or the last downlink gain tune used
Whole value.
As shown in fig.5, in the embodiment of the present invention, uplink gain regulator 50 includes:
Receiving module 500 is screened out from it uplink signal, and determine that the bottom of uplink signal is made an uproar for receiving GSM signal
Sound value, and downlink signal is filtered out from GSM signal, and pilot signal is filtered out from downlink signal, specifically by above-mentioned MT
Duplexer 13 is held to realize.
Module 501 is obtained, for covering balance adaptation parameter and the last downlink gain used according to preset signal
Adjusted value obtains initial uplink gain adjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, module 501 is obtained according to preset signal and covers balance adaptation parameter, the last downlink used
Preset mapping relations between gain adjustment value and initial uplink gain adjustment value obtain initial uplink gain adjustment value.
First callback module 502, for detecting the down output power value of base station, according to the performance number and base of pilot signal
The down output power value stood obtains the first uplink gain readjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, the first callback module 502 obtains the first uplink gain readjustment value using following formula:
First uplink gain readjustment value=base station down output power value-pilot signal performance number formula (4)
Second callback module 503 obtains for the noise floor value and noise floor index request according to uplink signal
Two uplink gain readjustment values, are specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, when the second callback module 503 determine uplink signal bottom make an uproar value be lower than the noise floor index want
When asking, 0db is set by the second uplink gain readjustment value；Otherwise, initial uplink signal gain adjusted value is reduced, uplink signal is made
Noise floor value be not more than noise floor index request, the second uplink gain readjustment value is equal to above-mentioned initial uplink signal and increases
The yield value that beneficial adjusted value reduces.
Computing module 504, for being increased according to initial uplink gain adjustment value, the first uplink gain readjustment value and the second uplink
Beneficial readjustment value calculates target uplink gain adjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, computing module 504 is calculated using the following equation target uplink gain adjustment value:
Target uplink gain adjustment value=initial uplink gain adjustment value the-the first uplink gain readjustment the-the second uplink of value increases
Benefit goes back to value adjusting formula (5)
Module 505 is adjusted, for carrying out according to transmission power of the obtained target uplink gain adjustment value to uplink signal
Adjustment, is specifically realized by above-mentioned uplink gain control coremaking piece 8.
In the embodiment of the present invention, adjustment module 505 is further used for: receiving GSM signal in receiving module 500, and therefrom
After filtering out uplink signal, adjustment module 505 adjusts the transmission power of uplink signal according to current uplink gain adjustment value
It is whole, wherein current uplink gain adjustment value is uplink gain adjustment value initial set value, or the last uplink gain tune used
Whole value.
In conclusion using technical solution documented in the embodiment of the present invention, to the base place system of the existing base station GSM
It improves, the function of the amplification of radiofrequency signal required for user can not only be provided, and be able to achieve adaptive uplink and downlink signals
Balance covering, while reducing out the part commissioning work of station personnel and needing the instrument and equipment quantity that carries, reduce people
For factor bring error, manually-operated cost is reduced, is improved work efficiency.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of adaptation method of global system for mobile communications GSM base discharge signal covering characterized by comprising
GSM signal is received, is screened out from it uplink signal, and determines the noise floor value of the uplink signal, and from described
Downlink signal is filtered out in GSM signal, and filters out pilot signal from the downlink signal；
Balance adaptation parameter and the last downlink gain adjustment value used are covered according to preset signal, initial uplink is obtained and increases
Beneficial adjusted value；
Base station down output power value is detected, according to the performance number of the pilot signal and the base station down output power value,
Obtain the first uplink gain readjustment value；
According to the noise floor value and noise floor index request of the uplink signal, the second uplink gain readjustment value is obtained；
It is adjusted back according to the initial uplink gain adjustment value, the first uplink gain readjustment value and the second uplink gain
Value, calculates target uplink gain adjustment value；
The transmission power of the uplink signal is adjusted according to the target uplink gain adjustment value.
2. the method as described in claim 1, which is characterized in that GSM signal is received, after being screened out from it uplink signal, into one
Step includes:
The transmission power of the uplink signal is adjusted according to specified uplink gain adjustment value, wherein described specified
Uplink gain adjustment value is uplink gain adjustment value initial set value, alternatively, the last uplink gain adjustment value used.
3. the method as described in claim 1, which is characterized in that cover balance adaptation parameter and last time according to preset signal
The downlink gain adjustment value used obtains initial uplink gain adjustment value, comprising:
The downlink gain adjustment value that is used according to the preset signal covering balance adaptation parameter, the last time and it is described just
Preset mapping relations between beginning uplink gain adjustment value obtain the initial uplink gain adjustment value.
4. the method as described in claim 1, which is characterized in that detection base station down output power value is believed according to the pilot tone
Number performance number and the base station down output power value, obtain the first uplink gain readjustment value, comprising:
The first uplink gain readjustment value is obtained using following formula:
First uplink gain readjustment value=base station down output power value-pilot signal performance number.
5. the method as described in claim 1, which is characterized in that according to the noise floor value and noise floor of the uplink signal
Index request obtains the second uplink gain readjustment value, comprising:
When determining that value is made an uproar lower than the noise floor index request in the uplink signal bottom, the second uplink gain readjustment value is
0db；Otherwise the initial uplink gain adjustment value is reduced, the noise floor value of the uplink signal is made to make an uproar no more than the bottom
Sound index request, the second uplink gain readjustment value are equal to the yield value that the initial uplink gain adjustment value reduces.
6. the method as described in claim 1, which is characterized in that according on the initial uplink gain adjustment value, described first
Row gain readjustment value and the second uplink gain readjustment value, calculate target uplink gain adjustment value, comprising:
It is calculated using the following equation the target uplink gain adjustment value:
Target uplink gain adjustment value=initial uplink gain adjustment value the-the first uplink gain readjustment value the-the second uplink gain is returned
Tone pitch.
7. a kind of adaptive device of global system for mobile communications GSM base discharge signal covering characterized by comprising
Receiving module is screened out from it uplink signal, and determine the noise floor of the uplink signal for receiving GSM signal
Value, and downlink signal is filtered out from the GSM signal, and filter out pilot signal from the downlink signal；
Module is obtained, for covering balance adaptation parameter and the last downlink gain adjustment value used according to preset signal,
Obtain initial uplink gain adjustment value；
First callback module, for detecting base station down output power value, according to the performance number of the pilot signal and the base
It stands down output power value, obtains the first uplink gain readjustment value；
Second callback module obtains second for the noise floor value and noise floor index request according to the uplink signal
Uplink gain readjustment value；
Computing module, for according to the initial uplink gain adjustment value, the first uplink gain readjustment value and described second
Uplink gain readjustment value, calculates target uplink gain adjustment value；
Module is adjusted, for being adjusted according to the target uplink gain adjustment value to the transmission power of the uplink signal.
8. device as claimed in claim 7, which is characterized in that the adjustment module is further used for:
GSM signal is received in the receiving module, after being screened out from it uplink signal, according to specified uplink gain adjustment value pair
The transmission power of the uplink signal is adjusted, wherein the specified uplink gain adjustment value is uplink gain adjustment value
Initial set value, alternatively, the last uplink gain adjustment value used.
9. device as claimed in claim 7, which is characterized in that the acquisition module covers balance adaptation according to preset signal
Parameter and the last downlink gain adjustment value used, obtain initial uplink gain adjustment value, comprising:
The downlink gain tune for obtaining module and being used according to the preset signal covering balance adaptation parameter, the last time
Preset mapping relations between whole value and the initial uplink gain adjustment value, obtain the initial uplink gain adjustment value.
10. device as claimed in claim 7, which is characterized in that first callback module detects base station down output power
Value obtains the first uplink gain readjustment value, packet according to the performance number of the pilot signal and the base station down output power value
It includes:
First callback module obtains the first uplink gain readjustment value using following formula:
First uplink gain readjustment value=base station down output power value-pilot signal performance number.
11. device as claimed in claim 7, which is characterized in that second callback module is according to the bottom of the uplink signal
Portion's noise figure and noise floor index request obtain the second uplink gain readjustment value, comprising:
When second callback module determines that value is made an uproar lower than the noise floor index request in the uplink signal bottom, by described the
Two uplink gain readjustment values are set as 0db；Otherwise, the initial uplink gain adjustment value is reduced, the bottom of the uplink signal is made
Portion's noise figure is not more than the noise floor index request, and the second uplink gain readjustment value is equal to the initial uplink and increases
The yield value that beneficial adjusted value reduces.
12. device as claimed in claim 7, which is characterized in that the computing module is according to the initial uplink gain adjustment
Value, the first uplink gain readjustment value and the second uplink gain readjustment value, calculate target uplink gain adjustment value, wrap
It includes:
The computing module is calculated using the following equation the target uplink gain adjustment value:
Target uplink gain adjustment value=initial uplink gain adjustment value the-the first uplink gain readjustment value the-the second uplink gain is returned
Tone pitch.
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| CN201610325630.5A CN105848172B (en) | 2013-12-27 | 2013-12-27 | A kind of adaptation method and device of the covering of GSM base discharge signal |
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| CN201310747271.9A CN103686766B (en) | 2013-12-27 | 2013-12-27 | Adapting method and device for GSM (Global System for Mobile Communications) base station amplifier signal coverage |
| CN201610325630.5A CN105848172B (en) | 2013-12-27 | 2013-12-27 | A kind of adaptation method and device of the covering of GSM base discharge signal |
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| CN201610325630.5A Expired - Fee Related CN105848172B (en) | 2013-12-27 | 2013-12-27 | A kind of adaptation method and device of the covering of GSM base discharge signal |
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| CN104320211B (en) * | 2014-10-13 | 2017-01-18 | 大唐移动通信设备有限公司 | IOT (Interference Over Thermal) data output method and device |
| CN108521657B (en) * | 2018-03-28 | 2021-05-28 | 京信通信系统（中国）有限公司 | Uplink background noise optimization method, device and system for multi-service digital distribution system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2356527A (en) * | 1999-11-17 | 2001-05-23 | Vodafone Ltd | Power control in a CDMA network |
| US6763006B1 (en) * | 1999-09-22 | 2004-07-13 | Sola Communications, Inc. | Method and apparatus for controlling uplink transmission power within a satellite communication system |
| CN101316125A (en) * | 2007-05-31 | 2008-12-03 | 华为技术有限公司 | Emission power regulation method and system |
| CN201307855Y (en) * | 2008-09-19 | 2009-09-09 | 成都福兰特电子技术有限公司 | Base station signal tower top optimizing system |
| CN102263595A (en) * | 2011-08-29 | 2011-11-30 | 网拓(上海)通信技术有限公司 | Multi-network fiber access system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754344B (en) * | 2008-12-19 | 2011-11-09 | 中国移动通信集团设计院有限公司 | Uplink covering capacity control method of time division synchronization code division multiple access (TD-SCDMA) system and user equipment |
| CN101873603B (en) * | 2009-04-22 | 2013-03-20 | 电信科学技术研究院 | Method and system for adjusting base station coverage |
-
2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763006B1 (en) * | 1999-09-22 | 2004-07-13 | Sola Communications, Inc. | Method and apparatus for controlling uplink transmission power within a satellite communication system |
| GB2356527A (en) * | 1999-11-17 | 2001-05-23 | Vodafone Ltd | Power control in a CDMA network |
| CN101316125A (en) * | 2007-05-31 | 2008-12-03 | 华为技术有限公司 | Emission power regulation method and system |
| CN201307855Y (en) * | 2008-09-19 | 2009-09-09 | 成都福兰特电子技术有限公司 | Base station signal tower top optimizing system |
| CN102263595A (en) * | 2011-08-29 | 2011-11-30 | 网拓(上海)通信技术有限公司 | Multi-network fiber access system |
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| CN103686766B (en) | 2017-03-22 |
| CN103686766A (en) | 2014-03-26 |
| CN105848172A (en) | 2016-08-10 |
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