WO2015061961A1 - 一种输入信号自动调整的设备、方法及装置 - Google Patents

一种输入信号自动调整的设备、方法及装置 Download PDF

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Publication number
WO2015061961A1
WO2015061961A1 PCT/CN2013/086135 CN2013086135W WO2015061961A1 WO 2015061961 A1 WO2015061961 A1 WO 2015061961A1 CN 2013086135 W CN2013086135 W CN 2013086135W WO 2015061961 A1 WO2015061961 A1 WO 2015061961A1
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Prior art keywords
attenuation value
signal
attenuator
path
attenuation
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PCT/CN2013/086135
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English (en)
French (fr)
Inventor
赵虎
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/086135 priority Critical patent/WO2015061961A1/zh
Priority to CN201380001684.0A priority patent/CN104396320B/zh
Publication of WO2015061961A1 publication Critical patent/WO2015061961A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/52TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/42TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an apparatus, method, and apparatus for automatically adjusting an input signal.
  • an indoor distributed signal system receives multiple input signals from different base stations when accessing multiple operators, and multiple input signals are subjected to analog-to-digital conversion by an analog-to-digital conversion device, and are output through a power-limited channel. .
  • power adjustment of the input signal is required.
  • FIG. 1 The traditional method of adjusting the input signal power is shown in FIG. 1 .
  • the three input signals in the same frequency band are combined by the same single board, and the combined combined signal passes through the analog-to-digital conversion device. After the analog-to-digital conversion, the power is dynamically limited by the channel output.
  • An Attenuator or a CNC variable gain amplifier on the main path before the A/D converter is installed by an Automatic Generation Control (AGC) or Automatic Level Control (ALC) Digital Variable Gain Amplifier (DVGA) Adjusts to adjust the power of the combined signal on the main path after combining the three input signals.
  • AGC Automatic Generation Control
  • ALC Automatic Level Control
  • DVGA Digital Variable Gain Amplifier
  • the above method for adjusting the power of the combined signal can only adjust the power of the main path after combining the input signals, and cannot separately adjust the power of each input signal, and the adjustment method has strong limitations.
  • an embodiment of the present invention provides an apparatus, method, and apparatus for automatically adjusting an input signal.
  • Each of the signal input paths is provided with an attenuator, and each attenuator is controlled by an attenuator control interface according to the attenuation value.
  • the adjustment attenuator performs attenuation control to individually adjust the input signal of each signal input path.
  • a first aspect of the embodiments of the present invention provides an input signal automatic adjustment device, where the device package Includes:
  • At least two attenuators each attenuator being disposed on a signal input path, each attenuator being coupled to an attenuator control interface, all attenuator control interfaces being coupled to an attenuation value calculation chip, at least two attenuators and a combiner is connected, the combiner is connected to the main path, and the attenuation value calculation chip is connected to the main path;
  • the attenuation value calculation chip is configured to separately calculate an adjusted attenuation value of each signal input path, and respectively output an adjusted attenuation value of the path to an attenuator control interface connected to the attenuator set by each signal input path;
  • An attenuator control interface configured to receive an attenuation attenuation value of the attenuation value calculation chip to generate an attenuation control signal, and output the attenuation control signal to an attenuator connected thereto;
  • the attenuator the attenuation control signal for receiving the attenuator control interface attenuates the power of the input signal in the signal input path where the attenuator is located;
  • the combiner is configured to combine the input signals in the at least two signal input paths, and output the combined combined signals to the main path.
  • the attenuation value calculation chip is configured to calculate an adjustment attenuation value of each signal input path, including:
  • the attenuation value calculation chip is configured to acquire the combined power of the combined signal in the main path, calculate the dynamic attenuation value according to the combined power and the preset standard power, and use the dynamic attenuation value as the adjusted attenuation of each signal input path respectively. value.
  • the device further includes:
  • An analog to digital converter the analog to digital converter is disposed on the main path;
  • the analog-to-digital converter is configured to perform analog-to-digital conversion of the combined signal in the main path to obtain a digital signal
  • the attenuation value calculation chip is configured to acquire a combined power of the combined signal in the primary path, and calculate a dynamic attenuation value according to the combined power and the preset standard power, including:
  • the attenuation value calculation chip is configured to obtain digital power of the digital signal output by the analog-to-digital converter, and calculate a dynamic attenuation value according to the digital power and a preset standard power.
  • the attenuation value calculation chip is further configured to add a static attenuation value of each signal input path and the dynamic attenuation value as an adjusted attenuation value of each signal input path, and the static attenuation value is used to satisfy The system presets the signal coverage.
  • the device further includes:
  • duplexer being disposed on the main path
  • the duplexer is used to connect the combined signal transmission path and the combined signal receiving path on the main path.
  • a second aspect of the embodiments of the present invention provides a method for automatically adjusting an input signal, where the method includes:
  • the acquiring the combined power of the combined signal in the primary path includes:
  • Calculating the difference between the combined power and the preset standard power as the error value includes: calculating a difference between the digital power and a preset standard power as an error value.
  • the method further includes: calculating each signal The sum of the static attenuation value of the input path and the dynamic attenuation value as the expected attenuation value of each signal input path; The adjusted attenuation value of each signal input path is obtained according to the expected attenuation value of each signal input path.
  • a third aspect of the embodiments of the present invention provides an apparatus for automatically adjusting an input signal, where the apparatus includes:
  • Obtaining a power unit configured to acquire a combined power of a combined signal in the main path, where the combined signal is combined by an input signal of at least two signal input paths;
  • An error calculation unit configured to calculate a difference between the combined power and a preset standard power as an error value
  • An attenuation calculation unit configured to obtain a dynamic attenuation value according to the error value, and use the dynamic attenuation value as an adjusted attenuation value of each signal input path;
  • An attenuation control unit configured to respectively output an adjusted attenuation value of the path to an attenuator control interface connected to an attenuator provided for each signal input path, so that each attenuator control interface is further controlled by an attenuator connected thereto
  • the adjusted attenuation value attenuates the input signal.
  • the acquiring power unit includes:
  • the error calculation unit comprises:
  • a calculation subunit is configured to calculate a difference between the digital power and a preset standard power as an error value.
  • the apparatus further includes:
  • a summation unit for calculating a sum of a static attenuation value of each signal input path and the dynamic attenuation value as an expected attenuation value of each signal input path; obtaining each signal according to an expected attenuation value of each signal input path The adjusted attenuation value of the input path, which is used to satisfy the system preset signal coverage.
  • Embodiments of the present invention provide an apparatus, method and apparatus for automatically adjusting an input signal, the apparatus comprising: at least two attenuators, each attenuator being disposed on a signal input path, each The attenuators are connected to an attenuator control interface, and all of the attenuator control interfaces are connected to an attenuation value calculation chip.
  • At least two signal input ports are connected to one combiner, and the combiner is connected to the main path, and the attenuation value calculation chip Connected to the main path, the attenuation value calculation chip calculates the adjusted attenuation value of each signal input path, and outputs each adjusted attenuation value to the attenuator control interface connected to the attenuator set in the path, and each attenuator control interface is The attenuation value is adjusted to generate an attenuation control signal, and the attenuation control signal is output to an attenuator connected thereto, and the attenuator attenuates the input signal of the signal input path according to the attenuation control signal, and the attenuation value calculation chip calculates one for each signal input path.
  • each attenuator control interface controls the attenuator on one signal input path to attenuate the input signal, and the power of each signal input channel input signal can be separately adjusted to facilitate input signals for different operators.
  • Figure 1 shows a prior art method of adjusting an input signal
  • FIG. 2 is a schematic structural diagram of an apparatus for automatically adjusting an input signal according to the present invention
  • FIG. 3 is a schematic structural diagram of an apparatus for automatically adjusting an input signal according to the present invention
  • FIG. 4 is a flow chart of a second embodiment of an automatic input signal adjustment method according to the present invention
  • FIG. 5 is a flow chart of a third embodiment of an automatic input signal adjustment method according to the present invention
  • Embodiment 4 is a flowchart of a fifth embodiment of an apparatus for automatically adjusting an input signal according to the present invention
  • FIG. 8 is a schematic structural view of a sixth embodiment of an apparatus for automatically adjusting an input signal according to the present invention
  • an embodiment of the present invention provides an apparatus, method, and apparatus for automatically adjusting an input signal, and a preferred embodiment of the present invention is described below with reference to the accompanying drawings. It is to be understood that the preferred embodiments described herein are intended to illustrate and explain the invention, And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
  • Embodiment 1 of an apparatus for automatically adjusting an input signal according to the present invention, where the device includes:
  • At least two attenuators, Al-An, each attenuator Al-An is placed in a signal input path
  • each attenuator Al-An is connected to an attenuator control interface Bl-Bn, and all of the attenuator control interfaces Bl-Bn are connected to an attenuation value calculation chip 201, at least two attenuators Al-An and A combiner 202 is connected, the combiner 202 is connected to the main path L, and the attenuation value calculation chip 201 is connected to the main path L.
  • the attenuator A1 is disposed on the signal input path L1, the attenuator A1 is connected to the attenuator control interface B1, the attenuator control interface B1 is connected to the attenuation value calculation chip 201, and the attenuator A2 is disposed in the signal input path L2.
  • the attenuator A2 is connected to the attenuator control interface B2, and the attenuator control interface B2 is connected to the attenuation value calculation chip 201; and so on, the attenuator An is disposed on the signal input path Ln, the attenuator An and the attenuator control interface Bn Connected, the attenuator control interface Bn is connected to the attenuation value calculation chip 201, where n is a natural number greater than or equal to 2.
  • All of the attenuators Al-An are connected to a combiner 202.
  • the input signal input signal A1-An on each of the signal input paths L1-Ln is attenuated and output to the combiner 202.
  • the combiner 202 will be all The input signals L1-Ln of the signal input channel are combined to output a combined signal.
  • the attenuation value calculation chip 201 is configured to separately calculate the adjusted attenuation value of each signal input path, and output the adjusted attenuation value of the path to the attenuator control interface connected to the attenuator set in each of the signal input paths.
  • the attenuation value calculation chip 201 calculates the adjusted attenuation value of the signal input path L1-ln, and outputs the calculated n adjusted attenuation values to the attenuator control interfaces B1-Bn, respectively. Will be calculated
  • the adjusted attenuation value of the signal input channel LI is output to the attenuator control interface B1; the calculated attenuation value of the calculated signal input channel L2 is output to the attenuator control interface B2; and so on, the calculated signal is input to the channel Ln
  • the adjusted attenuation value is output to the attenuator control interface Bn, where n is a natural number greater than or equal to 2.
  • the attenuation value calculation chip 201 acquires the combined signal in the main path L, and the combined signal is a signal after the input signals of the plurality of signal input paths L1-Ln are combined by the combiner 202.
  • the power of the combined signal is the combined power, and the preset standard power is preset according to the output range of the dynamically limited output channel.
  • Attenuation value calculation chip 201 for calculating the adjusted attenuation value of each signal input path:
  • the dynamic attenuation value is calculated according to the combined power and the preset standard power, and the dynamic attenuation value is used as the adjusted attenuation value of each signal input path.
  • the adjusted attenuation values of each signal input path are equal, which are the adjusted attenuation values calculated according to the combined power and standard power.
  • the device further includes: an analog to digital converter 301, the analog to digital converter 301 is disposed on the main path;
  • the analog-to-digital converter 301 is configured to perform analog-to-digital conversion of the combined signal in the main path to obtain a digital signal:
  • the attenuation value calculation chip 201 is configured to obtain digital power of the digital signal output by the analog-to-digital converter 301, and calculate a dynamic attenuation value according to the digital power and a preset standard power.
  • the adjusted attenuation values of each signal input path are equal, which are the adjusted attenuation values calculated according to the digital power and the standard power.
  • the attenuation value calculation chip 201 is further configured to add the static attenuation value of each signal input path to the dynamic attenuation value as the adjusted attenuation value of each signal input path.
  • the adjusted attenuation value of each signal input path is composed of a static attenuation value and a dynamic attenuation value, and the dynamic attenuation values of each signal input path are the same, and each signal input path is
  • the static attenuation value is the initial preset value of the system.
  • the static attenuation values of different signal input paths are not necessarily the same.
  • the static attenuation value is mainly used to meet the preset signal coverage of the system, so that the input signals of different signal input channels are equal or satisfy the pre-preparation. If the ratio is set, the adjusted attenuation values of each signal input path are not necessarily equal.
  • the attenuator control interface Bl-Bn is configured to receive the adjusted attenuation value outputted by the attenuation value calculation chip 201 to generate an attenuation control signal, and output the attenuation control signal to the attenuator Al-An connected thereto.
  • the attenuator control interface B1 receives the adjusted attenuation value of the signal input path L1 outputted by the attenuation value calculation chip 201, and generates an attenuation control signal output to the attenuator A1.
  • the attenuator control interface B2 receives the signal input path L2 output by the attenuation value calculation chip 201.
  • the attenuation control signal is used to control the attenuator to attenuate the input signal in the signal input path.
  • the attenuation control signal for receiving the attenuator control interface Bl-Bn attenuates the power of the input signal in the signal input path L1-Ln where the attenuator is located.
  • the attenuator A1 receives the attenuation control signal of the attenuator control interface B1 to attenuate the power of the input signal in the signal input path L1; the attenuator A2 receives the attenuation control signal of the attenuator control interface B2 to the input signal in the signal input path L2 The power is attenuated; and so on, the attenuation control signal of the attenuator An receiving attenuator control interface Bn attenuates the power of the input signal in the signal input path Ln, where n is a natural number greater than or equal to 2.
  • the combiner 202 is configured to combine the input signals in the at least two signal input paths L1-Ln, and output the combined combined signals to the main path.
  • the device further includes:
  • duplexer being disposed on the main path
  • the duplexer is used to connect the combined signal transmission path and the combined signal receiving path on the main path.
  • each attenuator is disposed on a signal input path, each attenuation
  • the device is connected to an attenuator control interface, and all of the attenuator control interfaces are connected to an attenuation value calculation chip, at least two signal input ports are connected to one combiner, the combiner is connected to the main path, and the attenuation value is calculated by the chip and the main The paths are connected, and the attenuation value calculation chip separately calculates the adjusted attenuation value of each signal input path, and outputs each adjusted attenuation value to the attenuator control interface connected to the attenuator set in the path, and each attenuator control interface is adjusted according to the attenuation.
  • the value generates an attenuation control signal, and outputs the attenuation control signal to an attenuator connected thereto.
  • the attenuator attenuates the input signal of the signal input path according to the attenuation control signal, and the attenuation value calculation chip calculates an adjustment attenuation for each signal input path.
  • each attenuator control interface controls the attenuator on one signal input path to attenuate the input signal, and the power of each input signal input signal can be separately adjusted to facilitate flexible input signals for different operators. Adjustment, adjustment method Living is high.
  • FIG. 4 is a flowchart of Embodiment 2 of a method for automatically adjusting an input signal according to the present invention, which is applied to an attenuation value calculation chip, and the method includes:
  • Step 401 Acquire a combined power of the combined signal in the main path, and the combined signal is combined by an input signal of at least two signal input paths.
  • the combined signal in the main path is obtained by combining the input signals of at least two signal input paths, and the power of the combined signal is the combined power.
  • Step 402 Calculate a difference between the combined power and a preset standard power as an error value.
  • the preset standard power is preset based on the power output range limited by the dynamically limited output channel. When the combined power is greater than the standard power, it means that the combined power on the main path exceeds the power output range allowed by the dynamic limited output channel.
  • the output signal quality is caused by the combined power output limit of the limited output channel. It is severely degraded and may damage the input RF channel, so the input signal needs to be attenuated. When the error value is greater than 0, the input signal needs to be attenuated.
  • Step 403 Obtain a dynamic attenuation value according to the error value, and use the dynamic attenuation value as the adjusted attenuation value of each signal input path.
  • the attenuator has a certain attenuation range, that is, the maximum attenuation value: When d is less than 0, the attenuation value is adjusted to 0;
  • Step 404 Output the adjusted attenuation value of the path to the attenuator control interface connected to the attenuator set in each signal input path, so that each attenuator control interface respectively controls the attenuator connected thereto according to the adjusted attenuation value.
  • the input signal is attenuated.
  • the same adjusted attenuation value is output to each attenuator control interface, and the attenuation control interface generates an attenuation control signal according to the adjusted attenuation value, and controls the attenuation value connected thereto to attenuate the input signal of the signal input path, and the multiple of the attenuation is the modulation attenuation value.
  • Embodiment 3 is the same adjusted attenuation value output to each attenuator control interface, and the attenuation control interface generates an attenuation control signal according to the adjusted attenuation value, and controls the attenuation value connected thereto to attenuate the input signal of the signal input path, and the multiple of the attenuation is the modulation attenuation value.
  • FIG. 5 is a flowchart of Embodiment 3 of a method for automatically adjusting an input signal according to the present invention. Compared with Embodiment 2, acquiring digital power of a digital signal in a primary path is applied to an attenuation value calculation chip, and the method includes:
  • Step 501 Obtain digital power of the digital signal in the main path, and the digital signal is obtained by combining the input signals of at least two signal input paths and performing analog-to-digital conversion by an analog-to-digital converter.
  • the input signals of at least two signal input paths are combined to obtain a combined signal in the main path, and the combined signal is analog-digital converted by an analog-to-digital converter on the main path to obtain a digital signal, and the power of the digital signal is digital power.
  • Step 502 Calculate a difference between the digital power and a preset standard power as an error value.
  • Step 503 Obtain a dynamic attenuation value according to the error value, and use the dynamic attenuation value as the adjusted attenuation value of each signal input path.
  • the error value can be converted to a dynamic attenuation value according to equation (1):
  • the attenuator has a certain attenuation range, that is, the maximum attenuation value: When d is less than 0, the attenuation value is adjusted to 0;
  • Step 504 Output the adjusted attenuation value of the path to the attenuator control interface connected to the attenuator set in each signal input path, so that each attenuator control interface respectively controls the attenuator connected thereto according to the adjusted attenuation value pair.
  • the input signal is attenuated.
  • the same adjusted attenuation value is output to each attenuator control interface, and the attenuation control interface generates an attenuation control signal according to the adjusted attenuation value, and controls the attenuation value connected thereto to attenuate the input signal of the signal input path, and the multiple of the attenuation is the modulation attenuation value.
  • FIG. 6 is a flowchart of Embodiment 4 of a method for automatically adjusting an input signal according to the present invention.
  • Embodiment 4 further includes calculating a sum of a static attenuation value and a dynamic attenuation value, and applying to the attenuation value calculation chip.
  • the methods include:
  • Step 601 Acquire a combined power of the combined signal in the main path, and the combined signal is combined by an input signal of at least two signal input paths.
  • Step 602 Calculate a difference between the combined power and a preset standard power as an error value.
  • the preset standard power is preset based on the power output range limited by the dynamically limited output channel. When the combined power is greater than the standard power, it means that the combined power on the main path exceeds the power output range allowed by the dynamic limited output channel.
  • the output signal quality is caused by the combined power output limit of the limited output channel. It is severely degraded and may damage the input RF channel, so the input signal needs to be attenuated. When the error value is greater than 0, the input signal needs to be attenuated.
  • step 601 and step 602 may also obtain digital power of the digital signal in the primary path, and calculate a difference between the digital power and the preset standard power as an error value.
  • step 601 and step 602 may also obtain digital power of the digital signal in the primary path, and calculate a difference between the digital power and the preset standard power as an error value.
  • Step 603 Obtain a dynamic attenuation value according to the error value.
  • the error value can be converted to a dynamic attenuation value according to equation (1):
  • Step 604 Calculate the sum of the static attenuation value of each signal input path and the dynamic attenuation value as the expected attenuation value of each signal input path.
  • the static attenuation value d n of each signal input path is preset according to the signal coverage of the system when the system is initially set up, so that the input signal power of each signal input path is equal or the power is proportional.
  • n represents the label of the signal input path, such as the static attenuation value of the first signal input path and so on.
  • Step 605 Obtain an adjusted attenuation value of each signal input path according to an expected attenuation value of each signal input path.
  • the attenuator has a certain attenuation range, that is, the maximum attenuation value:
  • the adjustment attenuation value d is the predicted attenuation value;
  • the adjusted attenuation value d of each signal input path is not necessarily the same.
  • Step 606 Output the adjusted attenuation value of the path to the attenuator control interface connected to the attenuator set in each signal input path, so that each attenuator control interface respectively controls the attenuator connected thereto according to the adjusted attenuation value.
  • the input signal is attenuated.
  • the same adjusted attenuation value is output to each attenuator control interface, and the attenuation control interface generates an attenuation control signal according to the adjusted attenuation value, and controls the attenuation value connected thereto to attenuate the input signal of the signal input path, and the multiple of the attenuation is the modulation attenuation value.
  • the attenuator control interface B1 outputs an adjusted attenuation value of the first signal input path L1, and the attenuator control interface B1 controls the adjusted attenuation value of the first signal input path L1 of the attenuator A1 to attenuate the input signal;
  • the control interface B2 outputs the adjusted attenuation value of the first signal input path L2, the attenuator control interface B2 controls the attenuator A2, the first signal input path L2 adjusts the attenuation value to attenuate the input signal; and so on, the attenuator control interface Bn outputs the adjusted attenuation value of the first signal input path Ln, and the attenuator control interface Bn controls the attenuator An to adjust the attenuation value of the first signal input path Ln to attenuate the input signal.
  • n is a natural number greater than or equal to 2.
  • FIG. 7 is a schematic structural diagram of Embodiment 5 of an apparatus for automatically adjusting an input signal according to the present invention.
  • the apparatus corresponding to Embodiment 2 is applied to an attenuation value calculation chip, and the apparatus includes:
  • the acquisition power unit 701 is configured to acquire the combined power of the combined signal in the main path, and the combined signal is combined by the input signals of the at least two signal input paths.
  • the error calculation unit 702 is configured to calculate a difference between the combined power and a preset standard power as an error value.
  • the attenuation calculation unit 703 is configured to obtain a dynamic attenuation value according to the error value, and use the dynamic attenuation value as the adjusted attenuation value of each signal input path.
  • the attenuation control unit 704 is configured to output an adjusted attenuation value of the path to the attenuator control interface connected to the attenuator provided in each of the signal input paths, so that each attenuator control interface respectively controls the attenuator connected thereto according to the Adjust the attenuation value to attenuate the input signal.
  • FIG. 8 is a schematic structural diagram of a sixth embodiment of an apparatus for automatically adjusting an input signal according to the present invention.
  • the apparatus corresponding to the third embodiment is applied to an attenuation value calculation chip, and the apparatus includes:
  • the obtaining subunit 801 is configured to obtain digital power of the digital signal in the main path.
  • the digital signal is obtained by combining the input signals of at least two signal input paths and performing analog-to-digital conversion through an analog-to-digital converter.
  • the calculating subunit 802 is configured to calculate a difference between the digital power and a preset standard power as an error value.
  • the attenuation calculation unit 703 is configured to obtain a dynamic attenuation value according to the error value, and use the dynamic attenuation value as the adjusted attenuation value of each signal input path.
  • the attenuation control unit 704 is configured to output an adjusted attenuation value of the path to the attenuator control interface connected to the attenuator provided in each of the signal input paths, so that each attenuator control interface respectively controls the attenuator connected thereto according to the Adjust the attenuation value to attenuate the input signal.
  • Example 7
  • FIG. 9 is a schematic structural diagram of Embodiment 6 of an apparatus for automatically adjusting an input signal according to the present invention.
  • the apparatus corresponding to Embodiment 4 is applied to an attenuation value calculation chip, and the apparatus includes:
  • the acquisition power unit 701 is configured to acquire the combined power of the combined signal in the main path, and the combined signal is combined by the input signals of the at least two signal input paths.
  • the error calculation unit 702 is configured to calculate a difference between the combined power and a preset standard power as an error value.
  • the acquiring power unit 701 may also be the obtaining subunit 801; and the dormitory error calculating unit 702 may also be the calculating subunit 802.
  • the attenuation calculation unit 703 is configured to obtain a dynamic attenuation value according to the error value.
  • the attenuation summation unit 901 is configured to calculate a sum of a static attenuation value of each signal input path and the dynamic attenuation value as an expected attenuation value of each signal input path; each piece is obtained according to an expected attenuation value of each signal input path
  • the adjusted attenuation value of the signal input path, and the static attenuation value is used to satisfy the system preset signal coverage.
  • the attenuation control unit 704 is configured to output an adjusted attenuation value of the path to the attenuator control interface connected to the attenuator provided in each of the signal input paths, so that each attenuator control interface respectively controls the attenuator connected thereto according to the Adjust the attenuation value to attenuate the input signal.

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Abstract

本发明提供了一种输入信号自动调整设备、方法及装置,所述设备包括:至少两个衰减器,每个衰减器设置在一条信号输入通路上,每个衰减器与一个衰减器控制接口相连,所有的衰减器控制接口与一个衰减值计算芯片相连,至少两路信号输入端口与一个合路器相连,合路器与主通路相连,衰减值计算芯片与主通路相连,衰减值计算芯片为每一条信号输入通路计算出一个调整衰减值,每个衰减器控制接口控制一条信号输入通路上的衰减器对输入信号进行衰减,可以对每一条信号输入通路输入信号的功率进行单独调整,便于实现针对不同的运营商的输入信号进行灵活调整,调整方法灵活度高。

Description

一种输入信号自动调整的设备、 方法及装置 技术领域 本发明涉及通信技术领域, 尤其涉及一种输入信号自动调整的设备、 方法及装置。
背景技术 目前, 室内分布信号系统在接入多个运营商时, 接收来自不同基站的 多个输入信号, 多路输入信号通过模数转换器件进行模数转换后, 通过功 率动态受限的通道输出。 为了满足输出通道功率动态受限的要求, 需要对 输入信号进行功率调整。
传统的调整输入信号功率的方法如图 1所示, 以三路信号输入通道为 例, 同一频段的三路输入信号采用同一单板进行合并处理, 合并处理后的 合路信号通过模数转换器件进行模数转换后, 通过功率动态受限的通道输 出。 通过自动发电量控制器( Automatic Generation Control, AGC )或者自 动电平控制器( Automatic Level Control , ALC )对安装模数转换器之前的 主通路上的衰减器 (Attenuator ) 或数控可变增益放大器 (Digital Variable Gain Amplifier, DVGA ) 进行调整, 调整三个输入信号合并后的主通路上 的合路信号的功率。
上述调整合路信号的功率的方法只能调整多个输入信号进行合并处理 后的主通路上功率, 并不能对每个输入信号的功率进行单独调整, 调整方 法局限性强。
发明内容
有鉴于此, 本发明实施例提供了一种输入信号自动调整的设备、 方法 及装置, 每一条信号输入通路上设置一个衰减器, 每一个衰减器由一个衰 减器控制接口根据衰减值计算芯片输出的调整衰减器进行衰减控制, 可对 每条信号输入通路的输入信号进行单独调整。
本发明实施例第一方面提供了一种输入信号自动调整设备, 所述设备包 括:
至少两个衰减器, 每个衰减器设置在一条信号输入通路上, 每个衰减 器与一个衰减器控制接口相连, 所有的衰减器控制接口与一个衰减值计算 芯片相连, 至少两个衰减器与一个合路器相连, 所述合路器与主通路相连, 衰减值计算芯片与主通路相连;
衰减值计算芯片, 用于分别计算每一条信号输入通路的调整衰减值, 分别向与每一条信号输入通路设置的衰减器相连的衰减器控制接口输出该 路的调整衰减值;
衰减器控制接口, 用于接收衰减值计算芯片输出的调整衰减值生成衰 减控制信号, 并将所述衰减控制信号输出至与其相连的衰减器;
所述衰减器, 用于接收衰减器控制接口的衰减控制信号对衰减器所在 的信号输入通路中的输入信号的功率进行衰减;
合路器, 用于将至少两条信号输入通路中的输入信号进行合路, 并将 合路后的合路信号输出至主通路。
本发明实施例第一方面的第一种可能的实现方式中,
所述衰减值计算芯片, 用于计算每一条信号输入通路的调整衰减值包 括:
所述衰减值计算芯片, 用于获取主通路中合路信号的合路功率, 根据 合路功率与预设的标准功率计算动态衰减值, 将动态衰减值分别作为每一 条信号输入通路的调整衰减值。
结合本发明实施例第一方面的第一种可能的实现方式,在第二种可能的实 现方式中, 所述设备还包括:
模数转换器, 所述模数转换器设置于所述主通路上;
所述模数转换器用于将主通路中的合路信号进行模数转换得到数字信 号;
则所述衰减值计算芯片, 用于获取主通路中合路信号的合路功率, 根 据所述合路功率与预设的标准功率计算动态衰减值包括:
则所述衰减值计算芯片, 用于获取模数转换器输出的数字信号的数字 功率, 根据所述数字功率与预设的标准功率计算动态衰减值。 结合本发明实施例第一方面至第一方面的第二种可能的实现方式,在第三 种可能的实现方式中,
所述衰减值计算芯片, 还用于将每一条信号输入通路的静态衰减值与 所述动态衰减值相加后, 分别作为每一条信号输入通路的调整衰减值, 所 述静态衰减值用于满足系统预设信号覆盖范围。
结合本发明实施例第一方面至第一方面的第三种可能的实现方式,在第四 种可能的实现方式中, 所述设备还包括:
一个双工器, 所述双工器设置于主通路上;
所述双工器用于连接主通路上的合路信号发射通路和合路信号接收通 路。
本发明实施例第二方面提供了一种输入信号自动调整的方法, 所述方法 包括:
获取主通路中合路信号的合路功率, 所述合路信号由至少两条信号输 入通路的输入信号合路;
计算所述合路功率与预设的标准功率的差作为误差值;
根据所述误差值获得动态衰减值, 将动态衰减值分别作为每一条信号 输入通路的调整衰减值;
分别向与每一条信号输入通路设置的衰减器相连的衰减器控制接口输 出该路的调整衰减值, 以便每个衰减器控制接口分别控制与其相连的衰减 器按照所述调整衰减值对输入信号进行衰减。
本发明实施例第二方面的第一种可能的实现方式中, 所述获取主通路中 合路信号的合路功率包括:
获取主通路中模数转换器输出的数字信号的数字功率;
则计算所述合路功率与预设的标准功率的差作为误差值包括: 计算所述数字功率与预设的标准功率的差作为误差值。
结合本发明实施例第二方面至第二方面的第一种可能的实现方式, 在 第二种可能的实现方式中,所述根据所述误差值获得动态衰减值后还包括: 计算每一条信号输入通路的静态衰减值与所述动态衰减值的和作为每 一条信号输入通路的预计衰减值; 根据每一条信号输入通路的预计衰减值获得每一条信号输入通路的调 整衰减值。
本发明实施例第三方面提供了一种输入信号自动调整的装置, 所述装 置包括:
获取功率单元, 用于获取主通路中合路信号的合路功率, 所述合路信 号由至少两条信号输入通路的输入信号合路;
误差计算单元, 用于计算所述合路功率与预设的标准功率的差作为误 差值;
衰减计算单元, 用于根据所述误差值获得动态衰减值, 将动态衰减值 分别作为每一条信号输入通路的调整衰减值;
衰减控制单元, 用于分别向与每一条信号输入通路设置的衰减器相连 的衰减器控制接口输出该路的调整衰减值, 以便每个衰减器控制接口分另 'J 控制与其相连的衰减器按照所述调整衰减值对输入信号进行衰减。
本发明实施例第三方面的第一种可能的实现方式中, 所述获取功率单 元包括:
获取子单元, 用于获取主通路中模数转换器输出的数字信号的数字功 率;
则所述误差计算单元包括:
计算子单元, 用于计算所述数字功率与预设的标准功率的差作为误差 值。
结合本发明实施例第三方面至第三方面第一种可能的实现方式, 在第 二种可能的实现方式中, 所述装置还包括:
衰减求和单元, 用于计算每一条信号输入通路的静态衰减值与所述动 态衰减值的和作为每一条信号输入通路的预计衰减值; 根据每一条信号输 入通路的预计衰减值获得每一条信号输入通路的调整衰减值, 所述静态衰 减值用于满足系统预设信号覆盖范围。
由上述内容可知, 本发明实施例有如下有益效果:
本发明实施例提供了一种输入信号自动调整设备、 方法及装置, 所述 设备包括: 至少两个衰减器, 每个衰减器设置在一条信号输入通路上, 每 个衰减器与一个衰减器控制接口相连, 所有的衰减器控制接口与一个衰减 值计算芯片相连, 至少两路信号输入端口与一个合路器相连, 合路器与主 通路相连, 衰减值计算芯片与主通路相连, 衰减值计算芯片分别计算每一 条信号输入通路的调整衰减值, 将每一个调整衰减值输出至与该路设置的 衰减器相连的衰减器控制接口, 每个衰减器控制接口根据调整衰减值生成 衰减控制信号, 将衰减控制信号输出至与其相连的衰减器, 衰减器根据衰 减控制信号对该信号输入通路的输入信号进行衰减, 衰减值计算芯片为每 一条信号输入通路计算出一个调整衰减值, 每个衰减器控制接口控制一条 信号输入通路上的衰减器对输入信号进行衰减, 可以对每一条信号输入通 路输入信号的功率进行单独调整, 便于实现针对不同的运营商的输入信号 进行灵活调整, 调整方法灵活度高。 附图说明
实施例或现有技术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1 现有技术调整输入信号的方法;
图 2为本发明一种输入信号自动调整的设备实施例一结构示意图; 图 3为本发明一种输入信号自动调整的设备结构示意图;
图 4为本发明一种输入信号自动调整的方法实施例二流程图; 图 5为本发明一种输入信号自动调整的方法实施例三流程图; 图 6为本发明一种输入信号自动调整的方法实施例四流程图; 图 7为本发明一种输入信号自动调整的装置实施例五结构示意图; 图 8为本发明一种输入信号自动调整的装置实施例六结构示意图; 图 9为本发明一种输入信号自动调整的装置实施例六结构示意图。 具体实施方式 为了给出对每一条信号输入通路输入信号的功率进行单独调整 的实现方案, 本发明实施例提供了一种输入信号自动调整的设备、 方法及 装置, 以下结合说明书附图对本发明的优选实施例进行说明, 应当理解, 此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。 并且在不沖突的情况下, 本申请中的实施例及实施例中的特征可以相互组 合。
实施例一
图 2为本发明一种输入信号自动调整的设备实施例一结构示意图, 所 述设备包括:
至少两个衰减器 Al-An, 每个衰减器 Al-An设置在一条信号输入通路
Ll-Ln上, 每个衰减器 Al-An与一个衰减器控制接口 Bl-Bn相连, 所有的 衰减器控制接口 Bl-Bn与一个衰减值计算芯片 201相连, 至少两个衰减器 Al-An与一个合路器 202相连, 所述合路器 202与主通路 L相连, 衰减值 计算芯片 201与主通路 L相连。
如图 2所示, 衰减器 A1设置在信号输入通路 L1上, 衰减器 A1与衰 减器控制接口 B1相连, 衰减器控制接口 B1与衰减值计算芯片 201相连; 衰减器 A2设置在信号输入通路 L2上, 衰减器 A2与衰减器控制接口 B2 相连, 衰减器控制接口 B2与衰减值计算芯片 201相连; 以此类推, 衰减器 An设置在信号输入通路 Ln上, 衰减器 An与衰减器控制接口 Bn相连, 衰 减器控制接口 Bn与衰减值计算芯片 201相连, 其中, n为大于等于 2的自 然数。
所有的衰减器 Al-An与一个合路器 202相连,每条信号输入通路 Ll-Ln 上的输入信号输入衰减器 Al-An进行衰减后, 输出至合路器 202, 合路器 202将所有信号输入通道的输入信号 Ll-Ln进行合路, 输出合路信号。
衰减值计算芯片 201 , 用于分别计算每一条信号输入通路的调整衰减 值, 分别向与每一条信号输入通路设置的衰减器相连的衰减器控制接口输 出该路的调整衰减值。
衰减值计算芯片 201计算信号输入通路 Ll-ln的调整衰减值, 将所计 算得到的 n个调整衰减值分别输出到衰减器控制接口 Bl-Bn。 将计算得到 的信号输入通道 LI的调整衰减值输出到衰减器控制接口 B1 ; 将计算得到 的信号输入通道 L2的调整衰减值输出到衰减器控制接口 B2; 以此类推, 将计算得到的信号输入通道 Ln的调整衰减值输出到衰减器控制接口 Bn, 其中, n为大于等于 2的自然数。
衰减值计算芯片 201 , 获取主通路 L 中的合路信号, 合路信号是由多 条信号输入通路 Ll-Ln的输入信号经过合路器 202合路以后的信号。 合路 信号的功率即为合路功率, 预设的标准功率是根据动态受限的输出通道的 输出范围预先设定的。
衰减值计算芯片 201分别计算每一条信号输入通路的调整衰减值有三 种可能的实施方式:
第一种可能的实施方式:
根据合路功率与预设的标准功率计算动态衰减值, 将动态衰减值分别 作为每一条信号输入通路的调整衰减值。
此时, 每一条信号输入通路的调整衰减值都相等, 都为根据合路功率 与标准功率计算出来的调整衰减值。
第二种可能的实施方式, 如图 3所示:
所述设备还包括: 模数转换器 301 , 所述模数转换器 301 设置于所述 主通路上;
所述模数转换器 301用于将主通路中的合路信号进行模数转换得到数 字信号:
所述衰减值计算芯片 201用于获取模数转换器 301输出的数字信号的 数字功率, 根据所述数字功率与预设的标准功率计算动态衰减值。
此时, 每一条信号输入通路的调整衰减值都相等, 都为根据数字功率 与标准功率计算出来的调整衰减值。
第三种可能的实施方式:
所述衰减值计算芯片 201 , 还用于将每一条信号输入通路的静态衰减 值与所述动态衰减值相加后,分别作为每一条信号输入通路的调整衰减值。
此时, 每一条信号输入通路的调整衰减值由静态衰减值和动态衰减值 组成, 每一条信号输入通路的动态衰减值都相同, 每一条信号输入通路的 静态衰减值为系统初始预设的值, 不同信号输入通路的静态衰减值不一定 相同, 静态衰减值主要用于满足系统预设信号覆盖范围, 使不同信号输入 通路商的输入信号相等或满足预设比例, 则每一条信号输入通路的调整衰 减值不一定相等。
衰减器控制接口 Bl-Bn, 用于接收衰减值计算芯片 201输出的调整衰 减值生成衰减控制信号, 并将所述衰减控制信号输出至与其相连的衰减器 Al-An。
衰减器控制接口 B1接收衰减值计算芯片 201输出的信号输入通路 L1 的调整衰减值, 生成衰减可控制信号输出至衰减器 A1 ; 衰减器控制接口 B2接收衰减值计算芯片 201输出的信号输入通路 L2的调整衰减值, 生成 衰减可控制信号输出至衰减器 A2; 以此类推, 衰减器控制接口 Bn接收衰 减值计算芯片 201输出的信号输入通路 Ln的调整衰减值,生成衰减可控制 信号输出至衰减器 An, 其中, n为大于等于 2的自然数。 衰减控制信号用 于控制衰减器对信号输入通路中的输入信号进行衰减。
所述衰减器 Al-An, 用于接收衰减器控制接口 Bl-Bn的衰减控制信号 对衰减器所在的信号输入通路 L 1 -Ln中的输入信号的功率进行衰减。
衰减器 A1接收衰减器控制接口 B1的衰减控制信号对信号输入通路 L1 中的输入信号的功率进行衰减; 衰减器 A2接收衰减器控制接口 B2的衰减 控制信号对信号输入通路 L2中的输入信号的功率进行衰减; 以此类推, 衰 减器 An接收衰减器控制接口 Bn的衰减控制信号对信号输入通路 Ln中的 输入信号的功率进行衰减, 其中, n为大于等于 2的自然数。
合路器 202, 用于将至少两条信号输入通路 Ll-Ln 中的输入信号进行 合路, 并将合路后的合路信号输出至主通路。
可选的, 所述设备还包括:
一个双工器, 所述双工器设置于主通路上;
所述双工器用于连接主通路上的合路信号发射通路和合路信号接收通 路。
由上述内容可知, 本发明实施例一具有以下有益效果:
至少两个衰减器, 每个衰减器设置在一条信号输入通路上, 每个衰减 器与一个衰减器控制接口相连, 所有的衰减器控制接口与一个衰减值计算 芯片相连, 至少两路信号输入端口与一个合路器相连, 合路器与主通路相 连, 衰减值计算芯片与主通路相连, 衰减值计算芯片分别计算每一条信号 输入通路的调整衰减值, 将每一个调整衰减值输出至与该路设置的衰减器 相连的衰减器控制接口, 每个衰减器控制接口根据调整衰减值生成衰减控 制信号, 将衰减控制信号输出至与其相连的衰减器, 衰减器根据衰减控制 信号对该信号输入通路的输入信号进行衰减, 衰减值计算芯片为每一条信 号输入通路计算出一个调整衰减值, 每个衰减器控制接口控制一条信号输 入通路上的衰减器对输入信号进行衰减, 可以对每一条信号输入通路输入 信号的功率进行单独调整, 便于实现针对不同的运营商的输入信号进行灵 活调整, 调整方法灵活度高。 实施例二
图 4为本发明一种输入信号自动调整的方法实施例二流程图, 应用于 衰减值计算芯片, 所述方法包括:
步骤 401 : 获取主通路中合路信号的合路功率, 所述合路信号由至少 两条信号输入通路的输入信号合路。
主通路中合路信号是由至少两条信号输入通路的输入信号合路后得到 的, 合路信号的功率为合路功率。
步骤 402: 计算所述合路功率与预设的标准功率的差作为误差值。 预设的标准功率是根据动态受限的输出通道所限制的功率输出范围所 预先设定的。 当合路功率大于标准功率时, 表示主通路上的合路功率超过 了动态受限输出通道所允许的功率输出范围, 由于合路功率超出受限输出 通道的功率输出限制就会造成输出信号质量严重下降, 并且有可能损坏输 入射频通道, 因此需要对输入信号进行衰减。 当误差值大于 0时, 需要对 输入信号进行衰减。
步骤 403 : 根据所述误差值获得动态衰减值, 将动态衰减值分别作为 每一条信号输入通路的调整衰减值。
可以按照公式 ( 1 ) 将误差值转换成动态衰减值: j0 = ioig^- ( l )
Err
其中, d。为动态衰减值, P为合路功率, Err为误差值。 当然, 并不 仅限于上述方法获得动态衰减值,还可以采取其他的方法获得动态衰减值, 使动态衰减值表示每一条信号输入通路的输入信号衰减相同的倍数即可。 将动态衰减值 d。作为调整衰减值 d, 此时, 每一条信号输入通路的调整衰 减值 d相等。
这里需要说明的是, 衰减器有一定的衰减范围, 即有最大衰减值: 当 d小于 0时, 调整衰减值为 0;
当 d大于等于 0并且小于等于最大衰减值时, 调整衰减值为 d;
当 d大于最大调整衰减值时, 调整衰减值为最大衰减值。
步骤 404: 分别向与每一条信号输入通路设置的衰减器相连的衰减器 控制接口输出该路的调整衰减值, 以便每个衰减器控制接口分别控制与其 相连的衰减器按照所述调整衰减值对输入信号进行衰减。
向每一个衰减器控制接口输出相同的调整衰减值, 衰减控制接口根据 调整衰减值生成衰减控制信号, 控制与其连接的衰减值对信号输入通路的 输入信号进行衰减, 衰减的倍数为调制衰减值。 实施例三
图 5为本发明一种输入信号自动调整的方法实施例三流程图, 与实施 例二相比, 获取主通路中数字信号的数字功率, 应用于衰减值计算芯片, 所述方法包括:
步骤 501 : 获取主通路中数字信号的数字功率, 所述数字信号由至少 两条信号输入通路的输入信号合路后, 由模数转换器进行模数转换后得到 的。
至少两条信号输入通路的输入信号合路后得到主通路中合路信号, 合 路信号经主通路上的模数转换器进行模数转换后, 得到数字信号, 数字信 号的功率为数字功率。
步骤 502: 计算所述数字功率与预设的标准功率的差作为误差值。
由于数字功率超出受限输出通道的功率输出限制就会造成输出信号质 量严重下降, 并且有可能损坏输入射频通道, 因此需要对输入信号进行衰 减。 当误差值大于 0时, 数字功率大于标准功率, 需要对输入信号进行衰 减。
步骤 503: 根据所述误差值获得动态衰减值, 将动态衰减值分别作为 每一条信号输入通路的调整衰减值。
可以按照公式 ( 1 ) 将误差值转换成动态衰减值:
j0 = ioig^- ( 1 )
Err
其中, d。为动态衰减值, P为合路功率, Err为误差值。 当然, 并不 仅限于上述方法获得动态衰减值,还可以采取其他的方法获得动态衰减值, 使动态衰减值表示每一条信号输入通路的输入信号衰减相同的倍数即可。 将动态衰减值 d。作为调整衰减值 d, 此时, 每一条信号输入通路的调整衰 减值 d相等。
这里需要说明的是, 衰减器有一定的衰减范围, 即有最大衰减值: 当 d小于 0时, 调整衰减值为 0;
当 d大于等于 0并且小于等于最大衰减值时, 调整衰减值为 d;
当 d大于最大调整衰减值时, 调整衰减值为最大衰减值。
步骤 504: 分别向与每一条信号输入通路设置的衰减器相连的衰减器 控制接口输出该路的调整衰减值, 以便每个衰减器控制接口分别控制与其 相连的衰减器按照所述调整衰减值对输入信号进行衰减。
向每一个衰减器控制接口输出相同的调整衰减值, 衰减控制接口根据 调整衰减值生成衰减控制信号, 控制与其连接的衰减值对信号输入通路的 输入信号进行衰减, 衰减的倍数为调制衰减值。 实施例四
图 6为本发明一种输入信号自动调整的方法实施例四流程图, 与实施 例二相比, 实施例四还包括计算静态衰减值和动态衰减值的和, 应用于衰 减值计算芯片, 所述方法包括:
步骤 601 : 获取主通路中合路信号的合路功率, 所述合路信号由至少 两条信号输入通路的输入信号合路。 步骤 602: 计算所述合路功率与预设的标准功率的差作为误差值。 预设的标准功率是根据动态受限的输出通道所限制的功率输出范围所 预先设定的。 当合路功率大于标准功率时, 表示主通路上的合路功率超过 了动态受限输出通道所允许的功率输出范围, 由于合路功率超出受限输出 通道的功率输出限制就会造成输出信号质量严重下降, 并且有可能损坏输 入射频通道, 因此需要对输入信号进行衰减。 当误差值大于 0时, 需要对 输入信号进行衰减。
可选的, 步骤 601和步骤 602还可以获取主通路中数字信号的数字功 率, 计算所述数字功率与预设的标准功率的差作为误差值。 参考实施例三 的描述, 这里不再赘述。
步骤 603: 根据所述误差值获得动态衰减值。
可以按照公式 (1 ) 将误差值转换成动态衰减值:
d0 = 101g 率, Err为误差值。
Figure imgf000014_0001
步骤 604: 计算每一条信号输入通路的静态衰减值与所述动态衰减值 的和作为每一条信号输入通路的预计衰减值。
每一条信号输入通路的静态衰减值 dn在系统初始搭建时根据系统的信 号覆盖范围已经预先设定, 使每一条信号输入通路的输入信号功率相等或 功率成一定比例。 n 表示信号输入通路的标号, 例如第一条信号输入通路 的静态衰减值为 以此类推。
此时, 由于每一条信号输入通路的静态衰减值不一定相等, 则所得的 预计衰减值不一定相等。
步骤 605: 根据每一条信号输入通路的预计衰减值获得每一条信号输 入通路的调整衰减值。
衰减器有一定的衰减范围, 即有最大衰减值:
当预计衰减值小于 0时, 调整衰减值 d为 0;
当预计衰减值大于等于 0并且小于等于最大衰减值时, 调整衰减值 d 为预计衰减值; 当预计衰减值大于最大调整衰减值时, 调整衰减值 d为最大衰减值。 则每一条信号输入通路的调整衰减值 d也不一定相同。
步骤 606: 分别向与每一条信号输入通路设置的衰减器相连的衰减器 控制接口输出该路的调整衰减值, 以便每个衰减器控制接口分别控制与其 相连的衰减器按照所述调整衰减值对输入信号进行衰减。
向每一个衰减器控制接口输出相同的调整衰减值, 衰减控制接口根据 调整衰减值生成衰减控制信号, 控制与其连接的衰减值对信号输入通路的 输入信号进行衰减, 衰减的倍数为调制衰减值。
例如, 向衰减器控制接口 B1输出第一条信号输入通路 L1的调整衰减 值, 衰减器控制接口 B1控制衰减器 A1第一条信号输入通路 L1的调整衰 减值对输入信号进行衰减;向衰减器控制接口 B2输出第一条信号输入通路 L2的调整衰减值,衰减器控制接口 B2控制衰减器 A2第一条信号输入通路 L2调整衰减值对输入信号进行衰减; 以此类推, 向衰减器控制接口 Bn输 出第一条信号输入通路 Ln的调整衰减值, 衰减器控制接口 Bn控制衰减器 An 第一条信号输入通路 Ln 的调整衰减值对输入信号进行衰减。 其中, n 为大于等于 2的自然数。 实施例五
图 7为本发明一种输入信号自动调整的装置实施例五结构示意图, 是 与实施例二所对应的装置, 应用于衰减值计算芯片, 所述装置包括:
获取功率单元 701 , 用于获取主通路中合路信号的合路功率, 所述合 路信号由至少两条信号输入通路的输入信号合路。
误差计算单元 702, 用于计算所述合路功率与预设的标准功率的差作 为误差值。
衰减计算单元 703 , 用于根据所述误差值获得动态衰减值, 将动态衰 减值分别作为每一条信号输入通路的调整衰减值。
衰减控制单元 704, 用于分别向与每一条信号输入通路设置的衰减器 相连的衰减器控制接口输出该路的调整衰减值, 以便每个衰减器控制接口 分别控制与其相连的衰减器按照所述调整衰减值对输入信号进行衰减。 实施例六
图 8为本发明一种输入信号自动调整的装置实施例六结构示意图, 是 与实施例三所对应的装置, 应用于衰减值计算芯片, 所述装置包括:
获取子单元 801 , 用于获取主通路中数字信号的数字功率。
所述数字信号由至少两条信号输入通路的输入信号合路后经过模数转 换器进行模数转换后得到的。
计算子单元 802 , 用于计算所述数字功率与预设的标准功率的差作为 误差值。
衰减计算单元 703 , 用于根据所述误差值获得动态衰减值, 将动态衰 减值分别作为每一条信号输入通路的调整衰减值。
衰减控制单元 704 , 用于分别向与每一条信号输入通路设置的衰减器 相连的衰减器控制接口输出该路的调整衰减值, 以便每个衰减器控制接口 分别控制与其相连的衰减器按照所述调整衰减值对输入信号进行衰减。 实施例七
图 9为本发明一种输入信号自动调整的装置实施例六结构示意图, 是 与实施例四所对应的装置, 应用于衰减值计算芯片, 所述装置包括:
获取功率单元 701 , 用于获取主通路中合路信号的合路功率, 所述合 路信号由至少两条信号输入通路的输入信号合路。
误差计算单元 702 , 用于计算所述合路功率与预设的标准功率的差作 为误差值。
可选的, 所述获取功率单元 701 还可以为获取子单元 801 ; 则宿舍误 差计算单元 702还可以是计算子单元 802。
衰减计算单元 703 , 用于根据所述误差值获得动态衰减值。
衰减求和单元 901 , 用于计算每一条信号输入通路的静态衰减值与所 述动态衰减值的和作为每一条信号输入通路的预计衰减值; 根据每一条信 号输入通路的预计衰减值获得每一条信号输入通路的调整衰减值, 所述静 态衰减值用于满足系统预设信号覆盖范围。 衰减控制单元 704 , 用于分别向与每一条信号输入通路设置的衰减器 相连的衰减器控制接口输出该路的调整衰减值, 以便每个衰减器控制接口 分别控制与其相连的衰减器按照所述调整衰减值对输入信号进行衰减。 本发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权 利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在 内。

Claims

权 利 要 求
1、 一种输入信号自动调整设备, 其特征在于, 所述设备包括: 至少两个衰减器, 每个衰减器设置在一条信号输入通路上, 每个衰减 器与一个衰减器控制接口相连, 所有的衰减器控制接口与一个衰减值计算 芯片相连, 至少两个衰减器与一个合路器相连, 所述合路器与主通路相连, 衰减值计算芯片与主通路相连;
衰减值计算芯片, 用于分别计算每一条信号输入通路的调整衰减值, 分别向与每一条信号输入通路设置的衰减器相连的衰减器控制接口输出该 路的调整衰减值;
衰减器控制接口, 用于接收衰减值计算芯片输出的调整衰减值生成衰 减控制信号, 并将所述衰减控制信号输出至与其相连的衰减器;
所述衰减器, 用于接收衰减器控制接口的衰减控制信号对衰减器所在 的信号输入通路中的输入信号的功率进行衰减;
合路器, 用于将至少两条信号输入通路中的输入信号进行合路, 并将 合路后的合路信号输出至主通路。
2、 根据权利要求 1所述的设备, 其特征在于,
所述衰减值计算芯片, 用于计算每一条信号输入通路的调整衰减值包 括:
所述衰减值计算芯片, 用于获取主通路中合路信号的合路功率, 根据 合路功率与预设的标准功率计算动态衰减值, 将动态衰减值分别作为每一 条信号输入通路的调整衰减值。
3、 根据权利要求 2所述的设备, 其特征在于, 所述设备还包括: 模数转换器, 所述模数转换器设置于所述主通路上;
所述模数转换器用于将主通路中的合路信号进行模数转换得到数字信 号;
则所述衰减值计算芯片, 用于获取主通路中合路信号的合路功率, 根 据所述合路功率与预设的标准功率计算动态衰减值包括:
则所述衰减值计算芯片, 用于获取模数转换器输出的数字信号的数字 功率, 根据所述数字功率与预设的标准功率计算动态衰减值。 更正页 (细则第 91条)
4、 根据权利要求 1 -3任意一项所述的设备, 其特征在于, 所述衰减值计算芯片, 还用于将每一条信号输入通路的静态衰减值与 所述动态衰减值相加后, 分别作为每一条信号输入通路的调整衰减值, 所 述静态衰减值用于满足系统预设信号覆盖范围。
5、 根据权利要求 1-4任意一项所述的设备, 其特征在于, 所述设备还 包括:
一个双工器, 所述双工器设置于主通路上;
所述双工器用于连接主通路上的合路信号发射通路和合路信号接收通 路。
6、 一种输入信号自动调整的方法, 其特征在于, 所述方法包括: 获取主通路中合路信号的合路功率, 所述合路信号由至少两条信号输 入通路的输入信号合路;
计算所述合路功率与预设的标准功率的差作为误差值;
根据所述误差值获得动态衰减值, 将动态衰减值分别作为每一条信号 输入通路的调整衰减值;
分别向与每一条信号输入通路设置的衰减器相连的衰减器控制接口输 出该路的调整衰减值, 以便每个衰减器控制接口分别控制与其相连的衰减 器按照所述调整衰减值对输入信号进行衰减。
7、 根据权利要求 6所述的方法, 其特征在于, 所述获取主通路中合路 信号的合路功率包括:
荻取主通路中模数转换器输出的数字信号的数字功率;
则计算所述合路功率与预设的标准功率的差作为误差值包括: 计算所述数字功率与预设的标准功率的差作为误差值。
8、 根据权利要求 6-7任意一项所述的方法, 其特征在于, 所述根据所 述误差值获得动态衰减值后还包括:
计算每一条信号输入通路的静态衰减值与所述动态衰减值的和作为每 一条信号输入通路的预计衰减值;
根据每一条信号输入通路的预计衰减值获得每一条信号输入通路的调 整衰减值。
更正页 (细则第 91条)
9、 一种输入信号自动调整的装置, 其特征在于, 所述装置包括: 获取功率单元, 用于获取主通路中合路信号的合路功率, 所述合路信 号由至少两条信号输入通路的输入信号合路;
误差计算单元, 用于计算所述合路功率与预设的标准功率的差作为误 差值;
衰减计算单元, 用于根据所述误差值获得动态衰减值, 将动态衰减值 分别作为每一条信号输入通路的调整衰减值;
衰减控制单元, 用于分别向与每一条信号输入通路设置的衰减器相连 的衰减器控制接口输出该路的调整衰减值, 以便每个衰减器控制接口分别 控制与其相连的衰减器按照所述调整衰减值对输入信号进行衰减。
10、 根据权利要求 9所述的装置, 其特征在于, 所述获取功率单元包 括:
获取子单元, 用于获取主通路中模数转换器输出的数字信号的数字功 率;
则所述误差计算单元包括:
计算子单元, 用于计算所述数字功率与预设的标准功率的差作为误差 值。
1 1、 根据权利要求 9- 10任意一项所述的装置, 其特征在于, 所述装置 还包括:
衰减求和单元, 用于计算每一条信号输入通路的静态衰减值与所述动 态衰减值的和作为每一条信号输入通路的预计衰减值; 根据每一条信号输 入通路的预计衰减值获得每一条信号输入通路的调整衰减值, 所述静态衰 减值用于满足系统预设信号覆盖范围。
更正页 (细则第 91条)
PCT/CN2013/086135 2013-10-29 2013-10-29 一种输入信号自动调整的设备、方法及装置 WO2015061961A1 (zh)

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