CN104396320B - A kind of equipment, the method and device of input signal adjust automatically - Google Patents
A kind of equipment, the method and device of input signal adjust automatically Download PDFInfo
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- CN104396320B CN104396320B CN201380001684.0A CN201380001684A CN104396320B CN 104396320 B CN104396320 B CN 104396320B CN 201380001684 A CN201380001684 A CN 201380001684A CN 104396320 B CN104396320 B CN 104396320B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
Abstract
The invention provides a kind of input signal automatic adjustment equipment, method and device, the equipment includes：At least two attenuators, each attenuator is arranged on a bars input channel, each attenuator is connected with an attenuator control interface, all attenuator control interfaces are connected with a pad value computing chip, at least two paths of signals input port is connected with a combiner, combiner is connected with primary path, pad value computing chip is connected with primary path, pad value computing chip is that each bars input channel calculates an adjustment pad value, each attenuator control interface controls the attenuator on a bars input channel to decay input signal, the power of each bars input channel input signal can individually be adjusted, the input signal being easy to implement for different operators is adjusted flexibly, method of adjustment flexibility ratio is high.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of equipment, the method and device of input signal adjust automatically.
Background technology
At present, indoor distribution signal system receives multiple inputs letter from different base station when accessing multiple operators
Number, after multichannel input signal carries out analog-to-digital conversion by modulus switching device, exported by the limited passage of power dynamic.In order to
Meet the limited requirement of output channel power dynamic, it is necessary to carry out power adjustment to input signal.
The method of traditional adjustment input signal power is as shown in figure 1, by taking three road signal input channels as an example, same frequency range
Three tunnel input signals processing is merged using same veneer, the combining signal after merging treatment is entered by modulus switching device
After row analog-to-digital conversion, exported by the limited passage of power dynamic.Pass through automatic generation amount controller（Automatic
Generation Control, AGC）Or automatic level controller（Automatic Level Control, ALC）To installation
The attenuator on primary path before analog-digital converter（Attenuator）Or programmable gain control amplifier（Digital
Variable Gain Amplifier, DVGA）It is adjusted, adjusts the combining on the primary path after three input signals merge
The power of signal.
The method of the power of above-mentioned adjustment combining signal can only adjust the master that multiple input signals are merged after processing and lead to
Power on road, the power of each input signal can not individually be adjusted, method of adjustment limitation is strong.
The content of the invention
In view of this, it is each the embodiments of the invention provide a kind of equipment, the method and device of input signal adjust automatically
One attenuator is set on bars input channel, and each attenuator is calculated by an attenuator control interface according to pad value
The adjustment attenuator of chip output carries out adjustable attenuation, and the input signal of every bars input channel individually can be adjusted.
First aspect of the embodiment of the present invention provides a kind of input signal automatic adjustment equipment, and the equipment includes：
At least two attenuators, each attenuator are arranged on a bars input channel, and each attenuator declines with one
Subtract device control interface to be connected, all attenuator control interfaces are connected with a pad value computing chip, at least two attenuators
It is connected with a combiner, the combiner is connected with primary path, and pad value computing chip is connected with primary path；
Pad value computing chip, for calculating the adjustment pad value of each bars input channel respectively, respectively to it is every
The attenuator control interface that the attenuator that one bars input channel is set is connected exports the adjustment pad value on the road；
Attenuator control interface, the adjustment pad value generation adjustable attenuation letter for the output of receiving attenuation value computing chip
Number, and the attenuation control signal is exported to coupled attenuator；
The attenuator, the attenuation control signal for receiving attenuation device control interface input to the signal where attenuator
The power of input signal in path is decayed；
Combiner, for the input signal at least two bars input channels to be combined, and by the conjunction after combining
Road signal output is to primary path.
In the first possible implementation of first aspect of the embodiment of the present invention,
The pad value computing chip, the adjustment pad value for calculating each bars input channel include：
The pad value computing chip, for obtaining the combining power of combining signal in primary path, according to combining power with
Default calibration power calculates dynamic attenuation value, decays using dynamic attenuation value as the adjustment of each bars input channel
Value.
With reference to the first possible implementation of first aspect of the embodiment of the present invention, in second of possible implementation
In, the equipment also includes：
Analog-digital converter, the analog-digital converter are arranged on the primary path；
The analog-digital converter is used to the combining signal progress analog-to-digital conversion in primary path obtaining data signal；
The then pad value computing chip, for obtaining the combining power of combining signal in primary path, according to the combining
Power calculates dynamic attenuation value with default calibration power to be included：
The then pad value computing chip, the digital power of the data signal for obtaining analog-digital converter output, according to
The digital power calculates dynamic attenuation value with default calibration power.
, may at the third with reference to second of possible implementation of first aspect of the embodiment of the present invention to first aspect
Implementation in,
The pad value computing chip, it is additionally operable to decline the static decay value of each bars input channel with the dynamic
After depreciation is added, respectively as the adjustment pad value of each bars input channel, the static decay value is used to meet system
Preset signals coverage.
With reference to the third possible implementation of first aspect of the embodiment of the present invention to first aspect, in the 4th kind of possibility
Implementation in, the equipment also includes：
One duplexer, the duplexer are arranged on primary path；
The duplexer is used to connect the combining signal transmitting path and combining signal receiving path on primary path.
Second aspect of the embodiment of the present invention provides a kind of method of input signal adjust automatically, and methods described includes：
The combining power of combining signal in primary path is obtained, the combining signal is defeated by least two bars input channels
Enter signal combining；
The combining power is calculated with the difference of default calibration power as error amount；
Dynamic attenuation value is obtained according to the error amount, using dynamic attenuation value as each bars input channel
Adjust pad value；
The attenuator control interface being connected respectively to the attenuator set with each bars input channel exports the road
Pad value is adjusted, so that each attenuator control interface controls coupled attenuator according to the adjustment pad value pair respectively
Input signal is decayed.
In the first possible implementation of second aspect of the embodiment of the present invention, combining signal in the acquisition primary path
Combining power include：
Obtain the digital power of the data signal that analog-digital converter exports in primary path；
Then calculate the difference of the combining power and default calibration power includes as error amount：
The digital power is calculated with the difference of default calibration power as error amount.
, may at second with reference to the first possible implementation of second aspect of the embodiment of the present invention to second aspect
Implementation in, it is described according to the error amount obtain dynamic attenuation value after also include：
Calculate the static decay value of each bars input channel and the dynamic attenuation value and it is used as each bars
The estimated pad value of input channel；
The adjustment pad value of each bars input channel is obtained according to the estimated pad value of each bars input channel.
The third aspect of the embodiment of the present invention provides a kind of device of input signal adjust automatically, and described device includes：
Power cell is obtained, for obtaining the combining power of combining signal in primary path, the combining signal is by least two
The input signal combining of bars input channel；
Error calculation unit, for calculating the combining power with the difference of default calibration power as error amount；
Decay calculation unit, for obtaining dynamic attenuation value according to the error amount, using dynamic attenuation value as every
The adjustment pad value of one bars input channel；
Adjustable attenuation unit, for the attenuator control being connected respectively to the attenuator set with each bars input channel
Interface processed exports the adjustment pad value on the road, so as to each attenuator control interface control respectively coupled attenuator according to
The adjustment pad value is decayed to input signal.
In the first possible implementation of the third aspect of the embodiment of the present invention, the acquisition power cell includes：
Subelement is obtained, for obtaining the digital power of the data signal that analog-digital converter exports in primary path；
Then the error calculation unit includes：
Computation subunit, for calculating the digital power with the difference of default calibration power as error amount.
It is possible at second with reference to the first possible implementation of the third aspect of the embodiment of the present invention to the third aspect
In implementation, described device also includes：
Decay sum unit, for the static decay value for calculating each bars input channel and the dynamic attenuation value
With the estimated pad value as each bars input channel；Obtained according to the estimated pad value of each bars input channel every
The adjustment pad value of one bars input channel, the static decay value are used to meet systemic presupposition signal cover.
As shown in the above, the embodiment of the present invention has the advantages that：
The embodiments of the invention provide a kind of input signal automatic adjustment equipment, method and device, the equipment includes：Extremely
Few two attenuators, each attenuator are arranged on a bars input channel, and each attenuator connects with an attenuator control
Mouth is connected, and all attenuator control interfaces are connected with a pad value computing chip, at least two paths of signals input port and one
Individual combiner is connected, and combiner is connected with primary path, and pad value computing chip is connected with primary path, pad value computing chip difference
The adjustment pad value of each bars input channel is calculated, each adjustment pad value is exported to the attenuator set with the road
Connected attenuator control interface, each attenuator control interface will decay according to adjustment pad value generation attenuation control signal
Control signal is exported to coupled attenuator, attenuator to be believed according to input of the attenuation control signal to the signal input channel
Number decayed, pad value computing chip is that each bars input channel calculates an adjustment pad value, each attenuator
Control interface controls the attenuator on a bars input channel to decay input signal, and each bars can be inputted
The power of path input signal is individually adjusted, and the input signal being easy to implement for different operators is flexibly adjusted
Whole, method of adjustment flexibility ratio is high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
The method that Fig. 1 prior arts adjust input signal；
Fig. 2 is a kind of structural representation of apparatus embodiments one of input signal adjust automatically of the present invention；
Fig. 3 is a kind of device structure schematic diagram of input signal adjust automatically of the present invention；
Fig. 4 is a kind of flow chart of embodiment of the method two of input signal adjust automatically of the present invention；
Fig. 5 is a kind of flow chart of embodiment of the method three of input signal adjust automatically of the present invention；
Fig. 6 is a kind of flow chart of embodiment of the method four of input signal adjust automatically of the present invention；
Fig. 7 is a kind of structural representation of device embodiment five of input signal adjust automatically of the present invention；
Fig. 8 is a kind of structural representation of device embodiment six of input signal adjust automatically of the present invention；
Fig. 9 is a kind of structural representation of device embodiment six of input signal adjust automatically of the present invention.
Embodiment
In order to provide the implementation individually adjusted to the power of each bars input channel input signal, this hair
Bright embodiment provides a kind of equipment, the method and device of input signal adjust automatically, below in conjunction with Figure of description to this hair
Bright preferred embodiment illustrates, it will be appreciated that and preferred embodiment described herein is merely to illustrate and explain the present invention,
It is not intended to limit the present invention.And in the case where not conflicting, the feature in embodiment and embodiment in the application can be with
It is mutually combined.
Embodiment one
Fig. 2 is a kind of structural representation of apparatus embodiments one of input signal adjust automatically of the present invention, and the equipment includes：
At least two attenuator A1-An, each attenuator A1-An are arranged on a bars input channel L1-Ln, each
Attenuator A1-An is connected with an attenuator control interface B1-Bn, all attenuator control interface B1-Bn and a decay
It is worth computing chip 201 to be connected, at least two attenuator A1-An are connected with a combiner 202, and the combiner 202 leads to main
Road L is connected, and pad value computing chip 201 is connected with primary path L.
As shown in Fig. 2 attenuator A1 is arranged on signal input channel L1, attenuator A1 and attenuator control interface B1 phases
Even, attenuator control interface B1 is connected with pad value computing chip 201；Attenuator A2 is arranged on signal input channel L2, is declined
Subtract device A2 with attenuator control interface B2 to be connected, attenuator control interface B2 is connected with pad value computing chip 201；With such
Push away, attenuator An is arranged on signal input channel Ln, and attenuator An is connected with attenuator control interface Bn, and attenuator control connects
Mouth Bn is connected with pad value computing chip 201, wherein, n is the natural number more than or equal to 2.
All attenuator A1-An are connected with a combiner 202, per the input letter on bars input channel L1-Ln
After number input attenuator A1-An is decayed, export to combiner 202, combiner 202 is by the input of all signal input channels
Signal L1-Ln is combined, and exports combining signal.
Pad value computing chip 201, for calculating the adjustment pad value of each bars input channel respectively, respectively to
The attenuator control interface that the attenuator that each bars input channel is set is connected exports the adjustment pad value on the road.
Pad value computing chip 201 calculates signal input channel L1-ln adjustment pad value, by the n being calculated
Adjustment pad value is respectively outputted to attenuator control interface B1-Bn.The adjustment for the signal input channel L1 being calculated is decayed
Value is output to attenuator control interface B1；The adjustment pad value for the signal input channel L2 being calculated is output to attenuator control
Interface B2 processed；By that analogy, the adjustment pad value for the signal input channel Ln being calculated is output to attenuator control interface
Bn, wherein, n is the natural number more than or equal to 2.
Pad value computing chip 201, obtains the combining signal in primary path L, and combining signal is logical by the input of more bars
Signal of the road L1-Ln input signal after the combining of combiner 202.The power of combining signal is combining power, is preset
Calibration power be set in advance according to the output area of the limited output channel of dynamic.
The adjustment pad value that pad value computing chip 201 calculates each bars input channel respectively has three kinds of possible realities
Apply mode：
The first possible embodiment：
Dynamic attenuation value is calculated according to combining power and default calibration power, using dynamic attenuation value as each
The adjustment pad value of signal input channel.
Now, the adjustment pad value of each bars input channel is all equal, all for according to combining power and calibration power
The adjustment pad value calculated.
Second of possible embodiment, as shown in Figure 3：
The equipment also includes：Analog-digital converter 301, the analog-digital converter 301 are arranged on the primary path；
The analog-digital converter 301 is used to the combining signal progress analog-to-digital conversion in primary path obtaining data signal：
The pad value computing chip 201 is used for the digital power for obtaining the data signal of the output of analog-digital converter 301, root
Dynamic attenuation value is calculated according to the digital power and default calibration power.
Now, the adjustment pad value of each bars input channel is all equal, all for according to digital power and calibration power
The adjustment pad value calculated.
The third possible embodiment：
The pad value computing chip 201, it is additionally operable to move the static decay value of each bars input channel with described
After state pad value is added, respectively as the adjustment pad value of each bars input channel.
Now, the adjustment pad value of each bars input channel is made up of static decay value and dynamic attenuation value, each
The dynamic attenuation value of bars input channel is all identical, and the static decay value of each bars input channel is system initial preset
Value, the static decay value of unlike signal input channel is not necessarily identical, and static decay value is mainly used in meeting that systemic presupposition is believed
Number coverage, makes the input signal of unlike signal input channel business equal or meets preset ratio, then each bars input
The adjustment pad value of path is not necessarily equal.
Attenuator control interface B1-Bn, decay is generated for the adjustment pad value that receiving attenuation value computing chip 201 exports
Control signal, and the attenuation control signal is exported to coupled attenuator A1-An.
The adjustment decay for the signal input channel L1 that attenuator control interface B1 receiving attenuation values computing chip 201 exports
Value, the controllable signal output of generation decay to attenuator A1；Attenuator control interface B2 receiving attenuation values computing chip 201 exports
Signal input channel L2 adjustment pad value, the controllable signal output of generation decay to attenuator A2；By that analogy, attenuator
The adjustment pad value for the signal input channel Ln that control interface Bn receiving attenuation values computing chip 201 exports, generation decay are controllable
Signal output processed to attenuator An, wherein, n is natural number more than or equal to 2.Attenuation control signal is used to control attenuator to letter
Input signal in number input channel is decayed.
The attenuator A1-An, the attenuation control signal for receiving attenuation device control interface B1-Bn is to where attenuator
Signal input channel L1-Ln in the power of input signal decayed.
Attenuator A1 receiving attenuation device control interfaces B1 attenuation control signal is believed the input in signal input channel L1
Number power decayed；Attenuator A2 receiving attenuation device control interfaces B2 attenuation control signal is in signal input channel L2
The power of input signal decayed；By that analogy, attenuator An receiving attenuations device control interface Bn attenuation control signal
The power of input signal in signal input channel Ln is decayed, wherein, n is the natural number more than or equal to 2.
Combiner 202, for the input signal at least two bars input channel L1-Ln to be combined, and it will close
Combining signal output behind road is to primary path.
Optionally, the equipment also includes：
One duplexer, the duplexer are arranged on primary path；
The duplexer is used to connect the combining signal transmitting path and combining signal receiving path on primary path.
As shown in the above, the embodiment of the present invention one has the advantages that：
At least two attenuators, each attenuator are arranged on a bars input channel, and each attenuator declines with one
Subtract device control interface to be connected, all attenuator control interfaces are connected with a pad value computing chip, and at least two paths of signals is defeated
Inbound port is connected with a combiner, and combiner is connected with primary path, and pad value computing chip is connected with primary path, pad value meter
The adjustment pad value that chip calculates each bars input channel respectively is calculated, each adjustment pad value is exported to the road and set
The attenuator control interface that the attenuator put is connected, each attenuator control interface are believed according to adjustment pad value generation adjustable attenuation
Number, attenuation control signal is exported to coupled attenuator, attenuator inputs logical according to attenuation control signal to the signal
The input signal on road is decayed, and pad value computing chip is that each bars input channel calculates an adjustment pad value,
Each attenuator control interface controls the attenuator on a bars input channel to decay input signal, can be to each
The power of bars input channel input signal is individually adjusted, and the input signal being easy to implement for different operators is entered
Row is adjusted flexibly, and method of adjustment flexibility ratio is high.
Embodiment two
Fig. 4 is a kind of flow chart of embodiment of the method two of input signal adjust automatically of the present invention, is calculated applied to pad value
Chip, methods described include：
Step 401：The combining power of combining signal in primary path is obtained, the combining signal is inputted by least two bars
The input signal combining of path.
Combining signal is the combining letter by being obtained after at least input signal combining of two bars input channels in primary path
Number power be combining power.
Step 402：The combining power is calculated with the difference of default calibration power as error amount.
Default calibration power is that the power output scope limited according to the limited output channel of dynamic is preset
's.When combining power is more than calibration power, represent that the combining power on primary path has exceeded the limited output channel of dynamic and permitted
Perhaps power output scope, the power output limitation that limited output channel is exceeded due to combining power will result in output signal matter
Measure degradation, and it is possible to damage input radio frequency passage, it is therefore desirable to which input signal is decayed.When error amount is more than
, it is necessary to decay to input signal when 0.
Step 403：Dynamic attenuation value is obtained according to the error amount, it is defeated using dynamic attenuation value as each bars
Enter the adjustment pad value of path.
Can be according to formula（1）Error amount is converted into dynamic attenuation value：
Wherein, d0For dynamic attenuation value, P is combining power, and Err is error amount.Certainly, it is not limited in the above method to obtain
Dynamic attenuation value is obtained, other methods can also be taken to obtain dynamic attenuation values, dynamic attenuation value is represented that each bars is defeated
Enter the attenuated input signal identical multiple of path.By dynamic attenuation value d0As adjustment pad value d, now, each
The adjustment pad value d of signal input channel is equal.
Explanation is needed exist for, attenuator has certain attenuation range, that is, has maximum attenuation value：
When d is less than 0, adjustment pad value is 0；
When d is more than or equal to 0 and is less than or equal to maximum attenuation value, adjustment pad value is d；
When d is more than maximum adjustment pad value, adjustment pad value is maximum attenuation value.
Step 404：The attenuator control interface being connected respectively to the attenuator set with each bars input channel is defeated
The adjustment pad value on Chu Gai roads, so that each attenuator control interface controls coupled attenuator according to the adjustment respectively
Pad value is decayed to input signal.
To each attenuator control interface output identical adjustment pad value, adjustable attenuation interface is according to adjustment pad value
Attenuation control signal is generated, controls connected pad value to decay the input signal of signal input channel, decay
Multiple is modulated attenuation value.
Embodiment three
Fig. 5 is a kind of flow chart of embodiment of the method three of input signal adjust automatically of the present invention, compared with embodiment two, is obtained
The digital power of data signal in primary path is taken, applied to pad value computing chip, methods described includes：
Step 501：The digital power of data signal in primary path is obtained, the data signal is inputted by least two bars
After the input signal combining of path, by what is obtained after analog-digital converter progress analog-to-digital conversion.
Combining signal in primary path at least is obtained after the input signal combining of two bars input channels, combining signal is through master
After analog-digital converter on path carries out analog-to-digital conversion, data signal is obtained, the power of data signal is digital power.
Step 502：The digital power is calculated with the difference of default calibration power as error amount.
Due to digital power exceed limited output channel power output limitation will result in quality of output signals it is serious under
Drop, and it is possible to damage input radio frequency passage, it is therefore desirable to decay to input signal.When error amount is more than 0, numeral
Power is more than calibration power, it is necessary to decay to input signal.
Step 503：Dynamic attenuation value is obtained according to the error amount, it is defeated using dynamic attenuation value as each bars
Enter the adjustment pad value of path.
Can be according to formula（1）Error amount is converted into dynamic attenuation value：
Wherein, d0For dynamic attenuation value, P is combining power, and Err is error amount.Certainly, it is not limited in the above method to obtain
Dynamic attenuation value is obtained, other methods can also be taken to obtain dynamic attenuation values, dynamic attenuation value is represented that each bars is defeated
Enter the attenuated input signal identical multiple of path.By dynamic attenuation value d0As adjustment pad value d, now, each
The adjustment pad value d of signal input channel is equal.
Explanation is needed exist for, attenuator has certain attenuation range, that is, has maximum attenuation value：
When d is less than 0, adjustment pad value is 0；
When d is more than or equal to 0 and is less than or equal to maximum attenuation value, adjustment pad value is d；
When d is more than maximum adjustment pad value, adjustment pad value is maximum attenuation value.
Step 504：The attenuator control interface being connected respectively to the attenuator set with each bars input channel is defeated
The adjustment pad value on Chu Gai roads, so that each attenuator control interface controls coupled attenuator according to the adjustment respectively
Pad value is decayed to input signal.
To each attenuator control interface output identical adjustment pad value, adjustable attenuation interface is according to adjustment pad value
Attenuation control signal is generated, controls connected pad value to decay the input signal of signal input channel, decay
Multiple is modulated attenuation value.
Example IV
Fig. 6 is a kind of flow chart of embodiment of the method four of input signal adjust automatically of the present invention, real compared with embodiment two
The sum that example four also includes calculating static decay value and dynamic attenuation value is applied, applied to pad value computing chip, methods described includes：
Step 601：The combining power of combining signal in primary path is obtained, the combining signal is inputted by least two bars
The input signal combining of path.
Step 602：The combining power is calculated with the difference of default calibration power as error amount.
Default calibration power is that the power output scope limited according to the limited output channel of dynamic is preset
's.When combining power is more than calibration power, represent that the combining power on primary path has exceeded the limited output channel of dynamic and permitted
Perhaps power output scope, the power output limitation that limited output channel is exceeded due to combining power will result in output signal matter
Measure degradation, and it is possible to damage input radio frequency passage, it is therefore desirable to which input signal is decayed.When error amount is more than
, it is necessary to decay to input signal when 0.
Optionally, step 601 and step 602 can also obtain the digital power of data signal in primary path, described in calculating
The difference of digital power and default calibration power is as error amount.The description of reference implementation example three, is repeated no more here.
Step 603：Dynamic attenuation value is obtained according to the error amount.
Can be according to formula（1）Error amount is converted into dynamic attenuation value：
Wherein, d0 is dynamic attenuation value, and P is combining power, and Err is error amount.
The description of reference implementation example two, is repeated no more here.
Step 604：Calculate the static decay value of each bars input channel and the dynamic attenuation value and as every
The estimated pad value of one bars input channel.
The static decay value dn of each bars input channel covers model when system is initially built according to the signal of system
Enclose and preset, make that the input signal power of each bars input channel is equal or power is proportional.N represents letter
The label of number input channel, such as the static decay value of the first bars input channel is d1, by that analogy.
Now, because the static decay value of each bars input channel is not necessarily equal, then gained estimated pad value
It is not necessarily equal.
Step 605：The tune of each bars input channel is obtained according to the estimated pad value of each bars input channel
Whole pad value.
Attenuator has certain attenuation range, that is, has maximum attenuation value：
When estimated pad value is less than 0, adjustment pad value d is 0；
When estimated pad value is more than or equal to 0 and is less than or equal to maximum attenuation value, adjustment pad value d is estimated decay
Value；
When estimated pad value is more than maximum adjustment pad value, adjustment pad value d is maximum attenuation value.
Then the adjustment pad value d of each bars input channel is also not necessarily identical.
Step 606：The attenuator control interface being connected respectively to the attenuator set with each bars input channel is defeated
The adjustment pad value on Chu Gai roads, so that each attenuator control interface controls coupled attenuator according to the adjustment respectively
Pad value is decayed to input signal.
To each attenuator control interface output identical adjustment pad value, adjustable attenuation interface is according to adjustment pad value
Attenuation control signal is generated, controls connected pad value to decay the input signal of signal input channel, decay
Multiple is modulated attenuation value.
For example, the first bars input channel L1 adjustment pad value, attenuator control are exported to attenuator control interface B1
Interface B1 control attenuator A1 the first bars input channels L1 processed adjustment pad value is decayed to input signal；To decay
Device control interface B2 exports the first bars input channel L2 adjustment pad value, attenuator control interface B2 control attenuators A2
First bars input channel L2 adjustment pad values are decayed to input signal；By that analogy, to attenuator control interface Bn
The first bars input channel Ln adjustment pad value is exported, attenuator control interface Bn controls attenuator the first bars of An is defeated
The adjustment pad value for entering path Ln is decayed to input signal.Wherein, n is the natural number more than or equal to 2.
Embodiment five
Fig. 7 is a kind of structural representation of device embodiment five of input signal adjust automatically of the present invention, is and embodiment two
Corresponding device, applied to pad value computing chip, described device includes：
Power cell 701 is obtained, for obtaining the combining power of combining signal in primary path, the combining signal is by least
The input signal combining of two bars input channels.
Error calculation unit 702, for calculating the combining power with the difference of default calibration power as error amount.
Decay calculation unit 703, for according to the error amount obtain dynamic attenuation value, using dynamic attenuation value as
The adjustment pad value of each bars input channel.
Adjustable attenuation unit 704, for the decay being connected respectively to the attenuator set with each bars input channel
Device control interface exports the adjustment pad value on the road, so that each attenuator control interface controls coupled attenuator respectively
Input signal is decayed according to the adjustment pad value.
Embodiment six
Fig. 8 is a kind of structural representation of device embodiment six of input signal adjust automatically of the present invention, is and embodiment three
Corresponding device, applied to pad value computing chip, described device includes：
Subelement 801 is obtained, for obtaining the digital power of data signal in primary path.
The data signal after at least input signal combining of two bars input channels by analog-digital converter by carrying out
Obtained after analog-to-digital conversion.
Computation subunit 802, for calculating the digital power with the difference of default calibration power as error amount.
Decay calculation unit 703, for according to the error amount obtain dynamic attenuation value, using dynamic attenuation value as
The adjustment pad value of each bars input channel.
Adjustable attenuation unit 704, for the decay being connected respectively to the attenuator set with each bars input channel
Device control interface exports the adjustment pad value on the road, so that each attenuator control interface controls coupled attenuator respectively
Input signal is decayed according to the adjustment pad value.
Embodiment seven
Fig. 9 is a kind of structural representation of device embodiment six of input signal adjust automatically of the present invention, is and example IV
Corresponding device, applied to pad value computing chip, described device includes：
Power cell 701 is obtained, for obtaining the combining power of combining signal in primary path, the combining signal is by least
The input signal combining of two bars input channels.
Error calculation unit 702, for calculating the combining power with the difference of default calibration power as error amount.
Optionally, the acquisition power cell 701 can also be to obtain subelement 801；Then dormitory error calculation unit 702
It can also be computation subunit 802.
Decay calculation unit 703, for obtaining dynamic attenuation value according to the error amount.
Decay sum unit 901, for the static decay value for calculating each bars input channel and the dynamic attenuation
The be worth and estimated pad value as each bars input channel；Obtained according to the estimated pad value of each bars input channel
The adjustment pad value of each bars input channel is obtained, the static decay value is used to meet systemic presupposition signal cover.
Adjustable attenuation unit 704, for the decay being connected respectively to the attenuator set with each bars input channel
Device control interface exports the adjustment pad value on the road, so that each attenuator control interface controls coupled attenuator respectively
Input signal is decayed according to the adjustment pad value.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of input signal automatic adjustment equipment, it is characterised in that the equipment includes：
At least two attenuators, each attenuator are arranged on a bars input channel, each attenuator and an attenuator
Control interface is connected, and all attenuator control interfaces are connected with a pad value computing chip, at least two attenuators and one
Individual combiner is connected, and the combiner is connected with primary path, and pad value computing chip is connected with primary path；
Pad value computing chip, for obtaining the combining power of combining signal on primary path, according to combining power and default mark
Quasi- power calculation dynamic attenuation value, the adjustment pad value using dynamic attenuation value as each bars input channel, respectively
The attenuator control interface being connected to the attenuator set with each bars input channel exports the adjustment pad value on the road；
Attenuator control interface, the adjustment pad value for the output of receiving attenuation value computing chip generate attenuation control signal, and
The attenuation control signal is exported to coupled attenuator；
The attenuator, the attenuation control signal for receiving attenuation device control interface is to the signal input channel where attenuator
In the power of input signal decayed；
Combiner, believe for the input signal at least two bars input channels to be combined, and by the combining after combining
Number output is to primary path.
2. equipment according to claim 1, it is characterised in that the equipment also includes：
Analog-digital converter, the analog-digital converter are arranged on the primary path；
The analog-digital converter is used to the combining signal progress analog-to-digital conversion in primary path obtaining data signal；
The then pad value computing chip, for obtaining the combining power of combining signal in primary path, according to the combining power
Calculating dynamic attenuation value with default calibration power includes：
The then pad value computing chip, the digital power of the data signal for obtaining analog-digital converter output, according to described
Digital power calculates dynamic attenuation value with default calibration power.
3. according to the equipment described in claim 1-2 any one, it is characterised in that
The pad value computing chip, it is additionally operable to the static decay value of each bars input channel and the dynamic attenuation value
After addition, respectively as the adjustment pad value of each bars input channel, the static decay value is used to meet systemic presupposition
Signal cover.
4. according to the equipment described in claim 1-2 any one, it is characterised in that the equipment also includes：
One duplexer, the duplexer are arranged on primary path；
The duplexer is used to connect the combining signal transmitting path and combining signal receiving path on primary path.
A kind of 5. method of input signal adjust automatically, it is characterised in that methods described includes：
The combining power of combining signal in primary path is obtained, the combining signal is believed by the input of at least two bars input channels
Number combining；
The combining power is calculated with the difference of default calibration power as error amount；
Dynamic attenuation value, the adjustment using dynamic attenuation value as each bars input channel are obtained according to the error amount
Pad value；
The attenuator control interface being connected respectively to the attenuator set with each bars input channel exports the adjustment on the road
Pad value, so that each attenuator control interface controls coupled attenuator according to the adjustment pad value to input respectively
Signal is decayed.
6. according to the method for claim 5, it is characterised in that the combining power bag for obtaining combining signal in primary path
Include：
Obtain the digital power of the data signal that analog-digital converter exports in primary path；
Then calculate the difference of the combining power and default calibration power includes as error amount：
The digital power is calculated with the difference of default calibration power as error amount.
7. according to the method described in claim 5-6 any one, it is characterised in that described to obtain dynamic according to the error amount
Also include after pad value：
Calculate the static decay value of each bars input channel and the dynamic attenuation value and inputted as each bars
The estimated pad value of path；
The adjustment pad value of each bars input channel is obtained according to the estimated pad value of each bars input channel.
8. a kind of device of input signal adjust automatically, it is characterised in that described device includes：
Power cell is obtained, for obtaining the combining power of combining signal in primary path, the combining signal is by least two letters
The input signal combining of number input channel；
Error calculation unit, for calculating the combining power with the difference of default calibration power as error amount；
Decay calculation unit, for obtaining dynamic attenuation value according to the error amount, using dynamic attenuation value as each
The adjustment pad value of signal input channel；
Adjustable attenuation unit, the attenuator control for being connected respectively to the attenuator set with each bars input channel connect
Mouth exports the adjustment pad value on the road, so that each attenuator control interface controls coupled attenuator according to described respectively
Adjustment pad value is decayed to input signal.
9. device according to claim 8, it is characterised in that the acquisition power cell includes：
Subelement is obtained, for obtaining the digital power of the data signal that analog-digital converter exports in primary path；
Then the error calculation unit includes：
Computation subunit, for calculating the digital power with the difference of default calibration power as error amount.
10. according to the device described in claim 8-9 any one, it is characterised in that described device also includes：
Decay sum unit, for calculating the static decay value of each bars input channel and the dynamic attenuation value and make
For the estimated pad value of each bars input channel；Each is obtained according to the estimated pad value of each bars input channel
The adjustment pad value of signal input channel, the static decay value are used to meet systemic presupposition signal cover.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/086135 WO2015061961A1 (en) | 2013-10-29 | 2013-10-29 | Device, method and apparatus for automatically adjusting input signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104396320A CN104396320A (en) | 2015-03-04 |
| CN104396320B true CN104396320B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201380001684.0A Active CN104396320B (en) | 2013-10-29 | 2013-10-29 | A kind of equipment, the method and device of input signal adjust automatically |
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| Country | Link |
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| CN (1) | CN104396320B (en) |
| WO (1) | WO2015061961A1 (en) |
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| CN115296733B (en) * | 2022-07-18 | 2024-02-06 | 三维通信股份有限公司 | Uplink combined signal anti-overflow method, device, DAS system and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189751A (en) * | 1996-12-30 | 1998-08-05 | Lc情报通信株式会社 | Test circuit of base station for mobile radio communication system |
| CN1304596A (en) * | 1999-05-10 | 2001-07-18 | Afc技术公司 | Input independent tilt free broadband amplifier with dynamic gain equalisation |
| CN1388651A (en) * | 2001-05-30 | 2003-01-01 | 华为技术有限公司 | Radio power synthesizer |
| CN101686084A (en) * | 2008-09-26 | 2010-03-31 | 富士通株式会社 | Optical signal transmitter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040106382A1 (en) * | 2002-12-03 | 2004-06-03 | Andrew Corporation | Repeater calibration system |
| US20070243826A1 (en) * | 2006-04-13 | 2007-10-18 | Accton Technology Corporation | Testing apparatus and method for a multi-paths simulating system |
| KR101070016B1 (en) * | 2009-08-10 | 2011-10-04 | 한국과학기술원 | Gain controllerable vector modulator |
-
2013
- 2013-10-29 WO PCT/CN2013/086135 patent/WO2015061961A1/en active Application Filing
- 2013-10-29 CN CN201380001684.0A patent/CN104396320B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189751A (en) * | 1996-12-30 | 1998-08-05 | Lc情报通信株式会社 | Test circuit of base station for mobile radio communication system |
| CN1304596A (en) * | 1999-05-10 | 2001-07-18 | Afc技术公司 | Input independent tilt free broadband amplifier with dynamic gain equalisation |
| CN1388651A (en) * | 2001-05-30 | 2003-01-01 | 华为技术有限公司 | Radio power synthesizer |
| CN101686084A (en) * | 2008-09-26 | 2010-03-31 | 富士通株式会社 | Optical signal transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104396320A (en) | 2015-03-04 |
| WO2015061961A1 (en) | 2015-05-07 |
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