CN105848172A - GSM base station amplifier signal coverage adaptation method and device - Google Patents
GSM base station amplifier signal coverage adaptation method and device Download PDFInfo
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- CN105848172A CN105848172A CN201610325630.5A CN201610325630A CN105848172A CN 105848172 A CN105848172 A CN 105848172A CN 201610325630 A CN201610325630 A CN 201610325630A CN 105848172 A CN105848172 A CN 105848172A
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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
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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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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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Abstract
The invention discloses a GSM base station amplifier signal coverage adaptation method and device. A downlink signal adjustment method comprises the steps that according to a pilot signal power value, output power and a downlink gain adjustment value used last time, an initial downlink gain adjustment value is acquired; according to the maximum carrier number, a first downlink gain callback value is acquired; according to an EDGE signal, a second downlink gain callback value is acquired; and according to three values, a target downlink gain adjustment value is calculated. An uplink signal adjustment method comprises the steps that according to a signal coverage balance adaptation parameter and the downlink gain adjustment value used last time, an initial uplink gain adjustment value is acquired; according to the pilot signal power value and a base station downlink output power value, a first uplink gain callback value is acquired; according to the bottom noise value and the bottom noise index requirement of an uplink signal, a second uplink gain callback value is acquired; and according to three values, a target uplink gain adjustment value is calculated. By adjusting uplink and downlink signal gain, uplink and downlink signal coverage balance is realized.
Description
The application is within 27th, to submit Patent Office of the People's Republic of China, Application No. 201310747271.9, invention name at December in 2013
It is referred to as the divisional application of the Chinese patent application of " adaptation method of a kind of GSM base discharge signal covering and device ".
Technical field
The present invention relates to the auxiliary amplifying technique of a kind of GSM base station, the adaptation covered particularly to a kind of GSM base discharge signal
Method and device.
Background technology
At present, global system for mobile communications (Global System For Mobile Communications, GSM) base
Standing to expand signal coverage distance, the form of commonly used GSM base station+peripheral auxiliary equipment (base is put), therefore, up-downgoing is believed
Number actual coverage affected by base place system, and whether the uplink and downlink signals of base place system covers and balances and directly affect
Covering effect of signals to base station.
At present, it is when base place system opens station that the uplink and downlink signals of base place system covers adjustment, is manually come by opening station personnel
It is configured, so the effect at the split station of working experience opening station personnel has large effect.Open station personnel to need equipment is made
It is analyzed by the situation of environment, by the monitoring software in PC (Personal Computer, PC), to equipment
Running parameter is configured.Wherein, the upstream attenuation value of base place system, downstream attenuation values the two parameter directly influences base station
Covering effect of signals.If uplink and downlink signals is uneven, mobile terminal can be caused can to receive downstream signal (on mobile phone
Display signal is normal), but cannot proper communication.
Base place system opens station staff to ensure that equipment reaches optimum Working, it is necessary to carry various detecting instrument
(audiofrequency spectrometer, signal source, attenuator etc.), detects base station and surrounding, obtains the reference information for opening station.Existing
Test platform is built in field, the operation such as including calibration instrument inherent parameters, connection, very inconvenient, if accidentally connecting mistake
By mistake, it is likely that instrument and equipment is caused damage.
Along with the intellectuality of embedded device improves constantly, in order to reduce manual operation cost, eliminate anthropic factor and bring
Error, base place system open station personnel in the urgent need to be provided that automatically melt station flow process base put equipment.And realize in self adaptation
It is exactly the key automatically melting station that downstream signal covers balance.
Summary of the invention
The embodiment of the present invention provides adaptation method and the device of a kind of GSM base place system signal covering, existing in order to reduce
Technology opened the part commissioning work of station personnel and needs the instrument and equipment quantity carried, improving work efficiency.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
First aspect, the adaptation method that a kind of global system for mobile communications GSM base discharge signal covers, including:
Receive GSM signal, therefrom filter out downstream signal, and filter out pilot signal from described downstream signal；
Performance number according to described pilot signal, default output and the last descending gain adjustment value used,
Obtain initial downlink gain adjustment value；
The maximum carrier number of detection, obtains the first descending gain readjustment value according to described maximum carrier number；
Detection enhanced data rates for gsm evolution technology EDGE signal, according to the described descending increasing of EDGE signal acquisition second
Benefit readjustment value；
Return according to described initial downlink gain adjustment value, described first descending gain readjustment value and described second descending gain
Tone pitch, calculates target downlink gain adjustment value；
According to described target downlink gain adjustment value, the transmitting power of described downstream signal is adjusted.
So, just achieve the regulation of the coverage of adaptive downstream signal, decrease the mistake that anthropic factor brings
Difference, reduces manually-operated cost and improves work efficiency simultaneously.
In conjunction with first aspect, in the implementation that the first is possible, receive GSM signal, therefrom filter out downstream signal
After, farther include:
According to the descending gain adjustment value specified, the transmitting power of described downstream signal is adjusted, wherein, described finger
Fixed descending gain adjustment value is descending gain adjustment value initial set value, or, the last descending gain adjustment value used.
In conjunction with first aspect, in the implementation that the second is possible, according to the performance number of described pilot signal, default
Output and the last descending gain adjustment value used, it is thus achieved that initial downlink gain adjustment value, including:
The employing below equation described initial downlink gain adjustment value of acquisition:
The output of the descending gain adjustment value that initial downlink gain adjustment value=last time uses+default
The performance number of-pilot signal
In this way, just can be by calculating initial downlink gain adjustment value.
In conjunction with first aspect, in the implementation that the third is possible, the maximum carrier number of detection, according to described maximum carrier wave
Number obtains the first descending gain readjustment value, including:
According to described maximum carrier number, it is judged that the performance number of described pilot signal accounts for the ratio of the performance number of described downstream signal
Example, and use the below equation described first descending gain readjustment value of calculating:
So, according to the ratio shared in the performance number of downstream signal of the performance number of pilot signal and base station maximum carrier wave
Relation between number, can be calculated the first descending gain readjustment value.
In conjunction with first aspect, in the 4th kind of possible implementation, detect EDGE signal, obtain according to described EDGE signal
Obtain the second descending gain readjustment value, including:
Determine that when having described EDGE signal, described second descending gain readjustment value is 3db；The most described second descending gain
Readjustment value is 0db.
By detection either with or without this mode of EDGE signal, the second descending gain readjustment value is set according to different situations,
The regulation that can make descending gain is more accurate.
In conjunction with first aspect, in the 5th kind of possible implementation, according to described initial downlink gain adjustment value, described
First descending gain readjustment value and described second descending gain readjustment value, calculate target downlink gain adjustment value, including:
The employing below equation described target downlink gain adjustment value of calculating:
Target downlink gain adjustment value=initial downlink gain adjustment value-the first descending gain readjustment value the-the second descending increasing
Benefit readjustment value.
In this way, according to aforementioned calculated two readjustment values, initial downlink gain adjustment value is adjusted
Thus obtain final target downlink gain adjustment value, compare the manual operation opening station personnel in prior art, decrease artificial
Because the error brought, improve accuracy and work efficiency.
Second aspect, the adaptation method that a kind of global system for mobile communications GSM base discharge signal covers, including:
Receive GSM signal, therefrom filter out upward signal, and determine the noise floor value of described upward signal, Yi Jicong
Described GSM signal filters out downstream signal, and filters out pilot signal from described downstream signal；
Balance adaptation parameter and the last descending gain adjustment value used is covered, it is thus achieved that on Chu Shi according to default signal
Row gain adjustment value；
Detection base station down output power value, according to performance number and the described base station down output of described pilot signal
Value, it is thus achieved that the first up gain readjustment value；
Noise floor value according to described upward signal and noise floor index request, it is thus achieved that the second up gain readjustment
Value；
Return according to described initial uplink gain adjustment value, described first up gain readjustment value and described second up gain
Tone pitch, calculates the up gain adjustment value of target；
According to described target up gain adjustment value, the transmitting power of described upward signal is adjusted.
In this way, the coverage of corresponding downstream signal, the coverage of upward signal is carried out self adaptation tune
Joint, it is achieved thereby that the covering balance of uplink and downlink signals.
In conjunction with second aspect, in the implementation that the first is possible, receive GSM signal, therefrom filter out upward signal
After, farther include:
According to the up gain adjustment value specified, the transmitting power of described upward signal is adjusted, wherein, described finger
Fixed up gain adjustment value is up gain adjustment value initial set value, or, the last up gain adjustment value used.
In conjunction with second aspect, in the implementation that the second is possible, cover balance adaptation parameter according to default signal
The descending gain adjustment value used with the last time, it is thus achieved that initial uplink gain adjustment value, including:
Balance adaptation parameter, the described last descending gain adjustment value used and institute is covered according to described default signal
State the mapping relations preset between initial uplink gain adjustment value, it is thus achieved that described initial uplink gain adjustment value.
In this way, it is considered to the last descending gain adjustment value used, select initial uplink gain adjustment value, have
It is beneficial to the covering balance of uplink and downlink signals.
In conjunction with second aspect, in the implementation that the third is possible, detect base station down output power value, according to described
The performance number of pilot signal and described base station down output power value, it is thus achieved that the first up gain readjustment value, including:
The employing below equation described first up gain readjustment value of acquisition:
The performance number of the first up gain readjustment value=base station down output power value-pilot signal.
So, the performance number of pilot signal and the down output power value of base station by detecting calculate,
Obtain the first up gain readjustment value.
In conjunction with second aspect, in the 4th kind of possible implementation, according to the noise floor value of described upward signal and
Noise floor index request, it is thus achieved that the second up gain readjustment value, including:
When determining value of making an uproar at the bottom of described upward signal less than described noise floor index request, described second up gain readjustment
Value is 0db；Otherwise reduce described initial uplink signal gain adjusted value, make the noise floor value of described upward signal be not more than institute
Stating noise floor index request, described second up gain readjustment value is equal to described initial uplink signal gain adjusted value and reduces
Yield value.
So, when value of making an uproar at the bottom of upward signal meets the noise floor index request of base place system, just do not carry out second time
Readjustment, otherwise needs to reduce value of making an uproar at the bottom of upward signal to meet index request, and this call-back manner can make up gain
It is more accurate to regulate.
In conjunction with second aspect, in the 5th kind of possible implementation, according to described initial uplink gain adjustment value, described
First up gain readjustment value and described second up gain readjustment value, calculate the up gain adjustment value of target, including:
The employing below equation calculating up gain adjustment value of described target:
The up gain adjustment value of target=initial uplink gain adjustment value-the first up gain readjustment value the-the second up increasing
Benefit readjustment value.
In this way, according to aforementioned calculated two readjustment values, initial uplink gain adjustment value is adjusted
Thus obtain the up gain adjustment value of final target, compare the manual operation opening station personnel in prior art, decrease artificial
Because the error brought, improve accuracy and work efficiency.
The third aspect, the adaptive device that a kind of global system for mobile communications GSM base discharge signal covers, including:
Receiver module, is used for receiving GSM signal, therefrom filters out downstream signal, and screens from described downstream signal
Go out pilot signal；
Acquisition module, for according under the performance number of described pilot signal, default output and last use
Row gain adjustment value, it is thus achieved that initial downlink gain adjustment value；
First callback module, is used for detecting maximum carrier number, obtains the first descending gain according to described maximum carrier number and returns
Tone pitch；
Second callback module, is used for detecting enhanced data rates for gsm evolution technology EDGE signal, believes according to described EDGE
Number obtain the second descending gain readjustment value；
Computing module, for according to described initial downlink gain adjustment value, described first descending gain readjustment value and described
Second descending gain readjustment value, calculates target downlink gain adjustment value；
Adjusting module, for adjusting the transmitting power of described downstream signal according to described target downlink gain adjustment value
Whole.
So, by the collaborative work of above-mentioned each module, it is achieved that the regulation of the coverage of adaptive downstream signal,
Decrease the error that anthropic factor brings, reduce manually-operated cost and improve work efficiency simultaneously.
In conjunction with the third aspect, in the implementation that the first is possible, described adjusting module is further used for:
GSM signal is received, after therefrom filtering out downstream signal, according to the descending Gain tuning specified at described receiver module
The transmitting power of described downstream signal is adjusted by value, and wherein, the described descending gain adjustment value specified is that descending gain is adjusted
Whole value initial set value, or, the last descending gain adjustment value used.
In conjunction with the third aspect, in the implementation that the second is possible, described acquisition module is according to described pilot signal
Performance number, default output and the last descending gain adjustment value used, it is thus achieved that initial downlink gain adjustment value, bag
Include:
The described acquisition module employing below equation described initial downlink gain adjustment value of acquisition:
The output of the descending gain adjustment value that initial downlink gain adjustment value=last time uses+default
The performance number of-pilot signal
In this way, acquisition module just can be by calculating initial downlink gain adjustment value.
In conjunction with the third aspect, in the implementation that the third is possible, the described first maximum carrier number of callback module detection,
The first descending gain readjustment value is obtained according to described maximum carrier number, including:
Described first callback module is according to described maximum carrier number, it is judged that the performance number of described pilot signal accounts for described descending
The ratio of the performance number of signal, and use the below equation described first descending gain readjustment value of calculating:
So, according to the ratio shared in the performance number of downstream signal of the performance number of pilot signal and base station maximum carrier wave
Relation between number, the first callback module is by can be calculated the first descending gain readjustment value.
In conjunction with the third aspect, in the 4th kind of possible implementation, described second callback module detection EDGE signal, root
According to described EDGE signal acquisition second descending gain readjustment value, including:
Described second callback module determines when having described EDGE signal, described second descending gain readjustment value is set to
3db；Otherwise described second descending gain readjustment value is set to 0db.
By detection either with or without this mode of EDGE signal, it is descending that the second callback module arranges second according to different situations
Gain readjustment value, the regulation that can make descending gain is more accurate.
In conjunction with the third aspect, in the 5th kind of possible implementation, described computing module increases according to described initial downlink
Benefit adjusted value, described first descending gain readjustment value and described second descending gain readjustment value, calculate target downlink gain and adjust
Whole value, including:
The described computing module employing below equation described target downlink gain adjustment value of calculating:
Target downlink gain adjustment value=initial downlink gain adjustment value-the first descending gain readjustment value the-the second descending increasing
Benefit readjustment value.
In this way, computing module according to aforementioned calculated two readjustment values to initial downlink gain adjustment value
It is adjusted thus obtains final target downlink gain adjustment value, compare the manual operation opening station personnel in prior art, subtract
Lack artificial because the error brought, improve accuracy and work efficiency.
Fourth aspect, the adaptive device that a kind of global system for mobile communications GSM base discharge signal covers, including:
Receiver module, is used for receiving GSM signal, therefrom filters out upward signal, and determines the bottom of described upward signal
Noise figure, and from described GSM signal, filter out downstream signal, and filter out pilot signal from described downstream signal；
Acquisition module, for covering balance adaptation parameter and the last descending Gain tuning used according to the signal preset
Value, it is thus achieved that initial uplink gain adjustment value；
First callback module, is used for detecting base station down output power value, according to performance number and the institute of described pilot signal
State base station down output power value, it is thus achieved that the first up gain readjustment value；
Second callback module, for the noise floor value according to described upward signal and noise floor index request, it is thus achieved that
Second up gain readjustment value；
Computing module, for according to described initial uplink gain adjustment value, described first up gain readjustment value and described
Second up gain readjustment value, calculates the up gain adjustment value of target；
Adjusting module, for adjusting the transmitting power of described upward signal according to the up gain adjustment value of described target
Whole.
In this way, the coverage of corresponding downstream signal, above-mentioned modules collaborative work, to upward signal
Coverage carries out Automatic adjusument, it is achieved thereby that the covering balance of uplink and downlink signals.
In conjunction with fourth aspect, in the implementation that the first is possible, described adjusting module is further used for:
GSM signal is received, after therefrom filtering out upward signal, according to the up Gain tuning specified at described receiver module
The transmitting power of described upward signal is adjusted by value, and wherein, the described up gain adjustment value specified is that up gain is adjusted
Whole value initial set value, or, the last up gain adjustment value used.
In conjunction with fourth aspect, in the implementation that the second is possible, described acquisition module covers according to the signal preset
Balance adaptation parameter and the last descending gain adjustment value used, it is thus achieved that initial uplink gain adjustment value, including:
Described acquisition module covers balance adaptation parameter, the described last descending increasing used according to described default signal
The mapping relations preset between benefit adjusted value and described initial uplink gain adjustment value, it is thus achieved that described initial uplink Gain tuning
Value.
In this way, it is considered to the last descending gain adjustment value used, acquisition module selects initial uplink gain
The covering balance of adjusted value, beneficially uplink and downlink signals.
In conjunction with fourth aspect, in the implementation that the third is possible, described first callback module detection base station down is defeated
Go out performance number, according to performance number and the described base station down output power value of described pilot signal, it is thus achieved that the first up gain is returned
Tone pitch, including:
The described first callback module employing below equation described first up gain readjustment value of acquisition:
The performance number of the first up gain readjustment value=base station down output power value-pilot signal.
So, the first callback module is entered by the performance number of pilot signal and the down output power value of base station detected
Row calculates, and i.e. can get the first up gain readjustment value.
In conjunction with fourth aspect, in the 4th kind of possible implementation, described second callback module is according to described up letter
Number noise floor value and noise floor index request, it is thus achieved that the second up gain readjustment value, including:
When described second callback module determines value of making an uproar at the bottom of described upward signal less than described noise floor index request, by institute
State the second up gain readjustment value and be set to 0db；Otherwise, reduce described initial uplink signal gain adjusted value, make described up
The noise floor value of signal is not more than described noise floor index request, described second up gain readjustment value be equal to described at the beginning of
The yield value that beginning upward signal gain adjustment value reduces.
So, when value of making an uproar at the bottom of upward signal meets the noise floor index request of base place system, the second callback module is just
Initial uplink gain adjustment value does not carry out second time adjust back, otherwise, then reduces value of making an uproar at the bottom of upward signal to meet index request,
This call-back manner can make the regulation to up gain more accurate.
In conjunction with fourth aspect, in the 5th kind of possible implementation, described computing module increases according to described initial uplink
Benefit adjusted value, described first up gain readjustment value and described second up gain readjustment value, calculate the up gain of target and adjust
Whole value, including:
The described computing module employing below equation calculating up gain adjustment value of described target:
The up gain adjustment value of target=initial uplink gain adjustment value-the first up gain readjustment value the-the second up increasing
Benefit readjustment value.
In this way, computing module according to aforementioned calculated two readjustment values to initial uplink gain adjustment value
It is adjusted thus obtains the up gain adjustment value of final target, compare the manual operation opening station personnel in prior art, subtract
Lack artificial because the error brought, improve accuracy and work efficiency.
Accompanying drawing explanation
Fig. 1 is the frame diagram of base place system in the embodiment of the present invention；
Fig. 2 is downstream signal Gain tuning flow chart in the embodiment of the present invention；
Fig. 3 is upward signal Gain tuning flow chart in the embodiment of the present invention；
Fig. 4 is descending gain regulator structure chart in the embodiment of the present invention；
Fig. 5 is up gain regulator structure chart in the embodiment of the present invention.
Detailed description of the invention
In order to reduce out the part detection work of station personnel, it is to avoid base is put the impact of equipment working effect by anthropic factor,
And then the accuracy and efficiency of raising work, in the embodiment of the present invention, it is provided that the adaptation side that a kind of GSM base discharge signal covers
Method, in this method, base place system, by the regulation to uplink and downlink signals gain, realizes the tune to uplink and downlink signals coverage
Joint.
Below in conjunction with the accompanying drawings the preferred embodiment of the present invention is described in detail.
Refering to shown in Fig. 1, in the embodiment of the present invention, base place system includes: DT end (donor antenna port, donor
Terminal) duplexer 1, MT end (user antenna port, mobile terminal) duplexer 13, descending gain control chip
2, up gain control chip 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
Unit 6, micro control processing unit 7, LNA unit 12.
Refering to shown in Fig. 2, in the embodiment of the present invention, the idiographic flow that the gain of downstream signal is adjusted by base place system
As follows:
Step 200: base place system receives GSM signal, therefrom filters out downstream signal, and filters out from downstream signal
Pilot signal.
In the embodiment of the present invention, after DT end duplexer 1 is isolated from GSM signal and is selected downstream signal, first according under
The transmitting power of downstream signal is adjusted by the current downlink gain adjustment value of row gain control chip 2, wherein, and current downlink
Gain adjustment value can be the descending gain adjustment value initial set value of system, it is also possible to be that the last descending gain used is adjusted
Whole value, descending gain adjustment value initial set value be exactly base place system system initialization sets when restarting or newly power on silent
Recognizing value, the last descending gain adjustment value used is exactly to make after base place system calculates according to last downstream signal and adjusts back
Target downlink gain adjustment value.It follows that downlink radio frequency down-converter unit 3 will adjust after downstream signal by radiofrequency signal
It is changed into intermediate-freuqncy signal, and is digitized processing to it by downstream digital signal processing unit 4, be sent to microcontroller and process single
Downstream signal after digitized is analyzed processing by unit 7, descending by after digitized of downstream digital signal processing unit 4 simultaneously
Signal is then converted to intermediate-freuqncy signal, transfers to downlink radio frequency upconverting unit 5 from intermediate-freuqncy signal, it to be changed into radiofrequency signal, finally
Above-mentioned downstream signal is amplified through power amplifier unit 6.
Downstream signal, can be by the shadow of internal system various piece each gain of process through whole base place system
Ring, such as DT end duplexer 1, descending gain control chip 2, downlink radio frequency down-converter unit 3, downstream digital processing unit 4, descending
RF up-converter unit 5 and power amplifier unit 6.But except the gain of descending gain control chip 2 is controlled, other parts are all
Fixed gain.Wherein, the gain to downstream signal plays the unit of topmost amplification is power amplifier unit 6.
Step 210: base place system according to the performance number of pilot signal, default output and last use descending
Gain adjustment value, it is thus achieved that initial downlink gain adjustment value.
In the embodiment of the present invention, initial downlink gain adjustment value can use below equation to obtain:
The output of the descending gain adjustment value that initial downlink gain adjustment value=last time uses+default
Formula (1)
The performance number of-pilot signal
Step 220: base place system detection base station maximum carrier number, obtains the first descending 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, it is simply that the performance number of pilot signal is at downstream signal
Ratio value shared in performance number, according to the base station maximum carrier number detected, it can be determined that the performance number going out pilot signal accounts for
The ratio of the performance number of downstream signal, then use below equation can calculate the first descending gain readjustment value:
Step 230: base place system detection enhanced data rates for gsm evolution technology (Enhanced Data Rate for
GSM Evolution, EDGE) signal, according to EDGE signal acquisition second descending gain readjustment value.
In the embodiment of the present invention, when base place system detects EDGE signal, just the second descending gain readjustment value is arranged
For 3db, otherwise, then the second descending gain readjustment value is set to 0db.
Step 240: base place system is according to above-mentioned initial downlink gain adjustment value, the first descending gain readjustment value and second time
Row gain readjustment value, calculates target downlink gain adjustment value.
In the embodiment of the present invention, target downlink gain adjustment value can use below equation to be calculated:
Target downlink gain adjustment value=initial downlink gain adjustment value-the first descending gain readjustment value the-the second descending increasing
Benefit returns value adjusting formula (3)
Step 250: the transmitting power of downstream signal is adjusted by base place system according to target downlink gain adjustment value.
In the embodiment of the present invention, target downlink gain adjustment value can come into force at once, by micro control processing unit 7 to descending increasing
Benefit control chip 2 is implemented to control, and adjusts the transmitting power of downstream signal in real time.
Refering to shown in Fig. 3, in the embodiment of the present invention, the idiographic flow that the gain of upward signal is adjusted by base place system
As follows:
Step 300: base place system receives GSM signal, therefrom filters out upward signal, and determines to make an uproar in the bottom of upward signal
Sound value, and from GSM signal, filter out downstream signal, and from downstream signal, filter out pilot signal.
In the embodiment of the present invention, after MT end duplexer 13 is isolated from GSM signal and selected upward signal, first according to upper
The transmitting power of upward signal is adjusted by the current up gain adjustment value of row gain control chip 8, wherein, the most up
Gain adjustment value can be the up gain adjustment value initial set value of system, it is also possible to be that the last up gain used is adjusted
Whole value, up gain adjustment value initial set value be exactly base place system system initialization sets when restarting or newly power on silent
Recognizing value, the last up gain adjustment value used is exactly to make after base place system calculates according to last upward signal and adjusts back
The up gain adjustment value of target.It follows that upstream radio-frequency down-converter unit 9 will adjust after upward signal by radiofrequency signal
It is changed into intermediate-freuqncy signal, and is digitized processing to it by digital uplink signal processing unit 10, be sent to microcontroller and process
Upward signal after digitized is analyzed processing by unit 7, and digital uplink signal processing unit 10 is again by after digitized simultaneously
Upward 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 upward signal is amplified through LNA unit 12.
Upward signal, can be by the shadow of internal system various piece each gain of process through whole base place system
Ring, such as MT end duplexer 13, up gain control chip 8, upstream radio-frequency down-converter unit 9, upstream digital processing unit 10, on
Row RF up-converter unit 11 and LNA unit 12.But except the gain of up gain control chip 8 is controlled, other portions
Dividing is all fixed gain.Wherein, the gain to upward signal plays the unit of topmost amplification is LNA unit 12.
Step 310: base place system covers balance adaptation parameter and the last descending gain used according to the signal preset
Adjusted value, it is thus achieved that initial uplink gain adjustment value.
In the embodiment of the present invention, signal covers balance adaptation parameter and considers that the use environment of base place system specifically sets
Put, as in community, market, mountain area, Along Railway etc., the signal preset covers balance adaptation parameter the most difference.Upper one
The descending gain adjustment value of secondary use is exactly the target used after base place system calculates according to last downstream signal and adjusts back
Descending gain adjustment value.Consult table 1, cover balance adaptation parameter, the last descending gain tune used according to default signal
The mapping relations preset between whole value and initial uplink gain adjustment value, it is thus achieved that this initial uplink gain adjustment value.
Table 1
| Use scene (scene numbering) | Initial uplink gain adjustment value (dB) |
| Market covers (0) | The last descending gain adjustment value-3 used |
| MPS process (1) | The last descending gain adjustment value-3 used |
| Industrial occupancy covers (2) | The last descending gain adjustment value-2 used |
| Mountain area covers (3) | The last descending gain adjustment value-1 used |
| Highway covers (4) | The last descending gain adjustment value-1 used |
| Railway covers (5) | The last descending gain adjustment value-1 used |
Step 320: the down output power value of base place system detection base station, according to performance number and the above-mentioned base of pilot signal
The down output power value stood, it is thus achieved that the first up gain readjustment value.
In the present embodiment, the first up gain readjustment value can use below equation to obtain:
The performance number formula (4) of the first up gain readjustment value=base station down output power value-pilot signal
Wherein, the first up i.e. base station of gain readjustment value is to the line loss of repeater.
Step 330: base place system is according to the noise floor value of upward signal and noise floor index request, it is thus achieved that on second
Row gain readjustment value.
Specifically, in the embodiment of the present invention, when base place system determines that value of making an uproar at the bottom of upward signal is wanted less than noise floor index
When asking, then the second up gain readjustment value is set to 0db；Otherwise, initial uplink signal gain adjusted value is reduced so that above-mentioned
The noise floor value of upward signal is less than or equal to noise floor index request, the increasing that initial uplink signal gain adjusted value reduces
Benefit value, it is simply that the second up gain readjustment value.
Step 340: base place system is according to initial uplink gain adjustment value, the first up gain readjustment value and the second up increasing
Benefit readjustment value, calculates the up gain adjustment value of target.
In the present embodiment, the up gain adjustment value of target can use below equation to be calculated:
The up gain adjustment value of target=initial uplink gain adjustment value-the first up gain readjustment value the-the second up increasing
Benefit returns value adjusting formula (5)
Step 350: the transmitting power of upward signal is adjusted by base place system according to the up gain adjustment value of above-mentioned target
Whole.
In the embodiment of the present invention, the up gain adjustment value of target can come into force at once, carries out the transmitting power of upward signal
Adjust in real time.
Based on above-described embodiment, refering to shown in Fig. 4, in the embodiment of the present invention, descending gain regulator 40 includes:
Receiver module 400, is used for receiving GSM signal, therefrom filters out downstream signal, and filter out from downstream signal
Pilot signal, is specifically realized by above-mentioned DT end duplexer 1.
Acquisition module 401, descending for use according to the performance number of pilot signal, default output and last time
Gain adjustment value, it is thus achieved that initial downlink gain adjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the embodiment of the present invention, acquisition module 401 use below equation obtain initial downlink gain adjustment value:
The output of the descending gain adjustment value that initial downlink gain adjustment value=last time uses+default
Formula (1)
The performance number of-pilot signal
First callback module 402, is used for detecting base station maximum carrier number, obtains first according to base station maximum carrier number descending
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 is according to base station maximum carrier number, it is judged that the power of pilot signal
Value accounts for the ratio of the performance number of described downstream signal, and uses below equation to calculate the first descending gain readjustment value:
Second callback module 403, is used for detecting EDGE signal, according to EDGE signal acquisition second descending gain readjustment value,
Specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, when the second callback module 403 determines and has EDGE signal, the second descending gain readjustment value is arranged
For 3db, otherwise, the second descending gain readjustment value is set to 0db.
Computing module 404, for according to initial downlink gain adjustment value, the first descending gain readjustment value and the second descending increasing
Benefit 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 use below equation calculate target downlink gain adjustment value:
Target downlink gain adjustment value=initial downlink gain adjustment value-the first descending gain readjustment value the-the second descending increasing
Benefit returns value adjusting formula (3)
Adjusting module 405, for the transmitting power of downstream signal being adjusted according to target downlink gain adjustment value, tool
Body is realized by above-mentioned descending gain control chip 2.
In the embodiment of the present invention, adjusting module 405 is further used for: receive GSM signal at receiver module 400, and therefrom
After filtering out downstream signal, the transmitting power of downstream signal is adjusted by adjusting module 405 according to current downlink gain adjustment value
Whole, wherein, current downlink gain adjustment value is descending gain adjustment value initial set value, or the last descending gain used is adjusted
Whole value.
Refering to shown in Fig. 5, in the embodiment of the present invention, up gain regulator 50 includes:
Receiver module 500, is used for receiving GSM signal, therefrom filters out upward signal, and determines to make an uproar in the bottom of upward signal
Sound value, and from GSM signal, filter out downstream signal, and from downstream signal, filter out pilot signal, specifically by above-mentioned MT
End duplexer 13 realizes.
Acquisition module 501, for covering balance adaptation parameter and the last descending gain used according to the signal preset
Adjusted value, it is thus achieved that initial uplink gain adjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, acquisition module 501 according to default signal cover balance adaptation parameter, last use descending
The mapping relations preset between gain adjustment value and initial uplink gain adjustment value, it is thus achieved that initial uplink gain adjustment value.
First callback module 502, for detecting the down output power value of base station, according to performance number and the base of pilot signal
The down output power value stood, it is thus achieved that the first up gain readjustment value, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, the first callback module 502 use below equation obtain described first up gain readjustment value:
The performance number formula (4) of the first up gain readjustment value=base station down output power value-pilot signal
Second callback module 503, for the noise floor value according to upward signal and noise floor index request, it is thus achieved that the
Two up gain readjustment values, are specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, when the second callback module 503 determines that value of making an uproar at the bottom of upward signal is wanted less than described noise floor index
When asking, the second up gain readjustment value is set to 0db；Otherwise, reduce initial uplink signal gain adjusted value, make upward signal
Noise floor value be not more than noise floor index request, the second up gain readjustment value be equal to above-mentioned initial uplink signal increase
The yield value that benefit adjusted value reduces.
Computing module 504, for according to initial uplink gain adjustment value, the first up gain readjustment value and the second up increasing
Benefit readjustment value, calculates the up gain adjustment value of target, is specifically realized by above-mentioned micro control processing unit 7.
In the present embodiment, computing module 504 use below equation calculate the up gain adjustment value of target:
The up gain adjustment value of target=initial uplink gain adjustment value-the first up gain readjustment value the-the second up increasing
Benefit returns value adjusting formula (5)
Adjusting module 505, for carrying out the transmitting power of upward signal according to the up gain adjustment value of target obtained
Adjust, specifically realized by above-mentioned up gain control chip 8.
In the embodiment of the present invention, adjusting module 505 is further used for: receive GSM signal at receiver module 500, and therefrom
After filtering out upward signal, the transmitting power of upward signal is adjusted by adjusting module 505 according to current up gain adjustment value
Whole, wherein, current up gain adjustment value is up gain adjustment value initial set value, or the last up gain used is adjusted
Whole value.
In sum, technical scheme described in the embodiment of the present invention, the base place system to existing GSM base station are used
Improve, the function that the radiofrequency signal required for user is amplified can not only be provided, and self adaptation uplink and downlink signals can be realized
Balance cover, decrease out the part commissioning work of station personnel simultaneously and need the instrument and equipment quantity carried, decreasing people
The error brought for factor, reduces manually-operated cost, improves work efficiency.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these amendments of the embodiment of the present invention and modification belong to the claims in the present invention
And within the scope of equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. the adaptation method that a global system for mobile communications GSM base discharge signal covers, it is characterised in that including:
Receive GSM signal, therefrom filter out upward signal, and determine the noise floor value of described upward signal, and from described
GSM signal filters out downstream signal, and filters out pilot signal from described downstream signal；
Balance adaptation parameter and the last descending gain adjustment value used is covered, it is thus achieved that initial uplink increases according to default signal
Benefit adjusted value；
Detection base station down output power value, according to performance number and the described base station down output power value of described pilot signal,
Obtain the first up gain readjustment value；
Noise floor value according to described upward signal and noise floor index request, it is thus achieved that the second up gain readjustment value；
According to described initial uplink gain adjustment value, described first up gain readjustment value and described second up gain readjustment
Value, calculates the up gain adjustment value of target；
According to described target up gain adjustment value, the transmitting power of described upward signal is adjusted.
2. the method for claim 1, it is characterised in that receive GSM signal, after therefrom filtering out upward signal, enter
Step includes:
According to the up gain adjustment value specified, the transmitting power of described upward signal is adjusted, wherein, described specifies
Up gain adjustment value is up gain adjustment value initial set value, or, the last up gain adjustment value used.
3. the method for claim 1, it is characterised in that cover balance adaptation parameter and last time according to default signal
The descending gain adjustment value used, it is thus achieved that initial uplink gain adjustment value, including:
According to described default signal cover balance adaptation parameter, the described last descending gain adjustment value used and described at the beginning of
Begin the mapping relations preset between up gain adjustment value, it is thus achieved that described initial uplink gain adjustment value.
4. the method for claim 1, it is characterised in that detection base station down output power value, believes according to described pilot tone
Number performance number and described base station down output power value, it is thus achieved that the first up gain readjustment value, including:
The employing below equation described first up gain readjustment value of acquisition:
The performance number of the first up gain readjustment value=base station down output power value-pilot signal.
5. the method for claim 1, it is characterised in that according to noise floor value and the noise floor of described upward signal
Index request, it is thus achieved that the second up gain readjustment value, including:
When determining value of making an uproar at the bottom of described upward signal less than described noise floor index request, described second up gain readjustment value is
0db；Otherwise reduce described initial uplink gain adjustment value, make the noise floor value of described upward signal be not more than described bottom and make an uproar
Sound index request, described second up gain readjustment value is equal to the yield value that described initial uplink gain adjustment value reduces.
6. the method for claim 1, it is characterised in that according to described initial uplink gain adjustment value, on described first
Row gain readjustment value and described second up gain readjustment value, calculate the up gain adjustment value of target, including:
The employing below equation calculating up gain adjustment value of described target:
The up gain adjustment value of target=initial uplink gain adjustment value-the first up gain readjustment value the-the second up gain is returned
Tone pitch.
7. the adaptive device that a global system for mobile communications GSM base discharge signal covers, it is characterised in that including:
Receiver module, is used for receiving GSM signal, therefrom filters out upward signal, and determines the noise floor of described upward signal
Value, and from described GSM signal, filter out downstream signal, and filter out pilot signal from described downstream signal；
Acquisition module, for covering balance adaptation parameter and the last descending gain adjustment value used according to the signal preset,
Obtain initial uplink gain adjustment value；
First callback module, is used for detecting base station down output power value, according to performance number and the described base of described pilot signal
Stand down output power value, it is thus achieved that the first up gain readjustment value；
Second callback module, for the noise floor value according to described upward signal and noise floor index request, it is thus achieved that second
Up gain readjustment value；
Computing module, for according to described initial uplink gain adjustment value, described first up gain readjustment value and described second
Up gain readjustment value, calculates the up gain adjustment value of target；
Adjusting module, for being adjusted the transmitting power of described upward signal according to the up gain adjustment value of described target.
8. device as claimed in claim 7, it is characterised in that described adjusting module is further used for:
GSM signal is received, after therefrom filtering out upward signal, according to the up gain adjustment value pair specified at described receiver module
The transmitting power of described upward signal is adjusted, and wherein, the described up gain adjustment value specified is up gain adjustment value
Initial set value, or, the last up gain adjustment value used.
9. device as claimed in claim 7, it is characterised in that described acquisition module covers balance adaptation according to the signal preset
Parameter and the last descending gain adjustment value used, it is thus achieved that initial uplink gain adjustment value, including:
Described acquisition module covers balance adaptation parameter according to described default signal, the described last descending gain used is adjusted
The mapping relations preset between whole value and described initial uplink gain adjustment value, it is thus achieved that described initial uplink gain adjustment value.
10. device as claimed in claim 7, it is characterised in that described first callback module detection base station down output
Value, according to performance number and the described base station down output power value of described pilot signal, it is thus achieved that the first up gain readjustment value, bag
Include:
The described first callback module employing below equation described first up gain readjustment value of acquisition:
The performance number of the first up gain readjustment value=base station down output power value-pilot signal.
11. devices as claimed in claim 7, it is characterised in that described second callback module is according to the end of described upward signal
Portion's noise figure and noise floor index request, it is thus achieved that the second up gain readjustment value, including:
When described second callback module determines value of making an uproar at the bottom of described upward signal less than described noise floor index request, by described the
Two up gain readjustment values are set to 0db；Otherwise, reduce described initial uplink gain adjustment value, make the end of described upward signal
Portion's noise figure is not more than described noise floor index request, and described second up gain readjustment value is equal to described initial uplink and increases
The yield value that benefit adjusted value reduces.
12. devices as claimed in claim 7, it is characterised in that described computing module is according to described initial uplink Gain tuning
Value, described first up gain readjustment value and described second up gain readjustment value, calculate the up gain adjustment value of target, bag
Include:
The described computing module employing below equation calculating up gain adjustment value of described target:
The up gain adjustment value of target=initial uplink gain adjustment value-the first up gain readjustment value the-the second up 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 |
| 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 |
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| CN108521657A (en) * | 2018-03-28 | 2018-09-11 | 京信通信系统（中国）有限公司 | Multi-service digital distribution system uplink bottom is made an uproar optimization method, device and system |
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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 |
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| US6763006B1 (en) * | 1999-09-22 | 2004-07-13 | Sola Communications, Inc. | Method and apparatus for controlling uplink transmission power within a satellite communication system |
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| CN103686766A (en) | 2014-03-26 |
| CN105848172B (en) | 2019-07-02 |
| CN103686766B (en) | 2017-03-22 |
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