CN101453336B - Method, apparatus and system for lowering power consumption of digital subscriber line - Google Patents
Method, apparatus and system for lowering power consumption of digital subscriber line Download PDFInfo
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- CN101453336B CN101453336B CN2007100775185A CN200710077518A CN101453336B CN 101453336 B CN101453336 B CN 101453336B CN 2007100775185 A CN2007100775185 A CN 2007100775185A CN 200710077518 A CN200710077518 A CN 200710077518A CN 101453336 B CN101453336 B CN 101453336B
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Abstract
The embodiment of the invention provides a method for reducing power consumption of a digital user line, which is applied to the field of digital user line. A line driver is driven to be alternately operated in a low power consumption state and a normal state, and a digital signal processor DSP detects information transmitted by the line and controls the line driver to change the operating state according to the detected information, so that the method can reduce the power consumption of the digital user line and save energy consumption. The embodiment of the invention also provides a device and a system for reducing the power consumption of the digital user line.
Description
Technical field
The present invention relates to the Digital Subscriber Line field, particularly a kind of methods, devices and systems that reduce power consumption of digital subscriber line.
Background technology
Digital Subscriber Line (Digital Subscriber Line; DSL) technology is a kind of twisted pair telephone that passes through; Be that (Unshielded Twist Pair UTP) carries out the high speed transmission technology of transfer of data to UTP, comprises ADSL (Asymmetrical Digital Subscriber Line; ADSL); VDSL (Very-high-bit-rate Digital Subscriber Line, VDSL), based on integrated services digital network (Integrated Services Digital Network, (the ISDN Digital Subscriber Line of number of users word line ISDN); IDSL) and single-line high speed digital subscriber line (Single-pair High-bit-rate Digital Subscriber Line, SHDSL) etc.
Signal processing apparatus as shown in Figure 1; Comprise digital signal processor (Digital SignalProcessor, DSP) module, line driver Line driver module, AFE(analog front end) (Analogy FrontEnd, AFE) module, line amplifier (Amplifier; AMP) module, hybrid circuit Hybrid module etc.; This signal processing apparatus can be used for the signal processing of DSL, in the DSL field, just comprises this signal processing apparatus in the xDSL nest plate.Wherein, The DSP module is carried out digital processing to the uplink and downlink signals that transmits in the DSL circuit, and the AFE module is carried out digital-to-analogue conversion and analog-to-digital conversion to uplink and downlink signals, and Line driver module realizes the analog-driven of downstream signal; The AMP module realizes the simulation amplification of upward signal; The Hybrid module is carried out the conversion of two or four lines and four two wires, eliminates echo, reduces noise.This signal processing apparatus power consumption is very big, and therefore energy-conservation work has just been put on schedule in the DSL circuit.
Present energy-conservation demand provides energy-saving design in gradually strictness by original only demand, becomes the power consumption limitations index that provides concrete.Therefore, the enforcement of energy conservation standard is trend of the times.
In the prior art, be to reduce its power consumption through the driving power of closing each chip in the xDSL nest plate---mainly be to close DSP and line driver, because these two power consumption are big.After the driving power of DSP module was closed, if the xDSL nest plate is returned to normal condition, the DSP module need reinitialize; So just wasted great amount of time; And each DSP module management not only circuit, also can affect All other routes after closing like this.Simultaneously, owing to can not be checked through when the far-end activation request signal is arranged, the time that causes the xDSL nest plate when to reinitialize can not be confirmed.
Summary of the invention
In view of this, embodiments of the invention provide a kind of method of the DSL of reduction power consumption, and this method can be saved the energy consumption of DSL circuit.
A kind of method that reduces the digital user wire DSL power consumption comprises:
Control circuit driver Line Driver alternation is in low power consumpting state and normal state;
In said line driver is operated in a period of time of said normal state; The information that the digital signal processor DSP detection line sends; Activate solicited message if detect far-end; Then control said line driver and be operated in normal state always, after detecting circuit deexcitation information again, said digital signal processor DSP is controlled said line driver alternation in low power consumpting state and normal state.。
The embodiment of the invention also provides a kind of device, and this device comprises that this device comprises line driver module, digital signal processor module,
Said line driver module, alternation is in low power consumpting state and normal state;
Said digital signal processor module is used for the information that detection line sends, and changes operating state according to detected information Control line driver module; Said digital signal processor module comprises receiver module; Detection module and control module, the information that said receiver module receiving lines sends, said detection module links to each other with receiver module; Be used in said line driver is operated in a period of time of said normal state; Detect said information, activate solicited message if detect far-end, then said control module is controlled said line driver and is operated in normal state always; After detecting circuit deexcitation information again, said control module is controlled said line driver alternation in low power consumpting state and normal state.
The embodiment of the invention also provides a kind of system that reduces the digital user wire DSL power consumption, comprises digital signal processor, line driver, and main controller, said line driver alternation is in low power consumpting state and normal state; Said digital signal processor is used in said line driver is operated in a period of time of said normal state, and the information that detection line sends sends to said main controller with detected information; Said main controller is used for changing operating state according to the said line driver of said detected information Control; Activate solicited message if detect far-end, then said main controller is controlled said line driver and is operated in normal state always, and after detecting circuit deexcitation information again, said main controller is controlled said line driver alternation in low power consumpting state and normal state.
Can find out that from such scheme the embodiment of the invention makes the line driver alternation in low power consumpting state and normal state; The information that the digital signal processor DSP detection line sends changes operating state according to detected information Control line driver.Through this scheme, can reduce DSL circuit
Description of drawings
Fig. 1 is the sketch map of signal processing apparatus in the prior art;
Fig. 2 is the sketch map that is connected of the xDSL nest plate that provides of the embodiment of the invention one and main controller;
Fig. 3 is the method flow diagram of the reduction DSL power consumption that provides of the embodiment of the invention one;
Fig. 4 is the schematic representation of apparatus that the embodiment of the invention three provides;
Fig. 5 is the circuit diagram that the embodiment of the invention six provides.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is made further detailed description below.
The embodiment of the invention provides a kind of method that reduces Digital Subscriber Line: the line driver alternation is in low power consumpting state and normal state; The information that detection line sends changes the operating state of said line driver according to detected information.
In the present invention, the information of circuit transmission comprises: far-end activates solicited message, circuit deexcitation information; Circuit deexcitation information includes but not limited to information such as circuit outage, subscriber arrearage, deexcitation order.
Embodiment one
Pin as shown in Figure 2, as to have energy consumption to control on the Line Driver, main controller have a pin and this energy consumption control pin to link to each other.For example, the pin of energy consumption control can be a Power Down pin on the Line Driver.Main controller can be controlled the driving power of Line Driver through high-low level.
Below in conjunction with Fig. 3, introduce the method for a kind of DSL of reduction power consumption that one embodiment of the invention provides:
S301: the pin of main controller through linking to each other with Line Driver, the alternation of control circuit driver is in low power consumpting state and normal state.
Wherein, being operated in low power consumpting state and normal state can realize through the driving power of reduction and recovery Line Driver.Reduce the power of Line Driver, then Line Driver is operated in low power consumpting state, can save energy consumption, and low power consumpting state also can be called battery saving mode; Recover the power of Line Driver, then Line Driver is operated in normal state, and normal state also can be called full-power mode.
The line driver alternation is in low power consumpting state and normal state, and promptly line driver a period of time is operated in low power consumpting state, and another section time service is in normal state, and two kinds of operating states are alternately carried out.Wherein, being operated in low power consumpting state can be periodically alternately with the time that is operated in normal state, also can be acyclic replacing.
Below periodically alternately to illustrate, for example: reduce the driving power 8s of Line Driver, recover its driving power 2s then, the duty ratio of promptly controlling Line Driver driving power is 20%.Wherein, the time of the driving power of reduction and recovery Line Driver is not must 8s and 2s.More excellent is; The time of reducing Line Driver driving power is controlled within the 10s; The time of reducing Line Driver driving power with (reduce Line Driver driving power time+time of recovery Line Driver driving power) ratio can but be not limited to less than 80%, be more excellent method less than 80%.
Because it is big that Line Driver drives power consumption, thereby, can reach the purpose of saving electric energy through reducing its power.Save the how much relevant of electric energy with the duty ratio of control Line Driver driving power.The time of reducing driving power is long more, just power saving more.
S302: the DSP of nest plate detects the information from circuit in Line Driver is operated in a period of time of normal state.If DSP detects far-end and activates solicited message, execution in step S303 then, otherwise, execution in step S301.
Wherein, in a period of time of reducing Line Driver driving power, DSP can't detect far-end and activate solicited message.Because each time of reducing Line Driver driving power, it is relatively shorter being compared to the initialized whole time of XDSL nest plate circuit (for example: the initialized time of nest plate is 30 seconds usually, and the time that industry can be born be 90s).So in the time of reducing Line Driver driving power, DSP can't detect far-end, and to activate solicited message be very little to the influence of link performance.
S303:DSP will report this far-end to activate solicited message to main controller, and the mode that reports includes but not limited to that the DSP status register shows, or interrupt mode.The pin that main controller passes through to link to each other with Line Driver recovers the driving power of Line Driver, makes it be operated in normal state, and the XDSL nest plate begins initialization then.
S304: after initialization finished, the DSL circuit normally activated.During the normal activation of DSL circuit, Line Driver is operated in normal state always, makes the process of line activation to continue.
S305: when DSP detects circuit deexcitation information, DSP will report this circuit deexcitation information to main controller, and main controller begins regularly to reduce and recover the driving power of Line Driver then.
In the present embodiment, the interval that the driving power of Line Driver is lowered can be arrived in the scope of total power (full power) 0, promptly also can the driving power of Line Driver be reduced to 0.
In the present embodiment, Line Driver also can self have controlled function, according to the solicited message that main controller reports, controls the different working state that self is operated in, for example: be operated in normal state, or alternation is at low energy consumption state and operating conditions.
Wherein, if DSP activates solicited message with the far-end that the mode of sending information is received to the main controller report, DSP can be left intact to the far-end activation solicited message of receiving so, directly issues main controller; After also can handling, again far-end is activated solicited message and issue main controller.
Embodiment two
The method of a kind of DSL of reduction power consumption that another embodiment of the present invention provides:
S401: make the line driver alternation in low power consumpting state and normal state.
S402:DSP activates solicited message to the far-end from far-end and detects in Line Driver is operated in a period of time of normal state.If DSP detects far-end and activates solicited message, execution in step S403 then, otherwise execution in step S401.
S403:DSP is operated in normal state through the pin control Line Driver that links to each other with Line Driver.
After perhaps DSP receives that far-end activates solicited message, send other a information and indicate LineDriver to draw oneself up to be operated in normal state.
Be that main controller among the embodiment one can be integrated among the DSP.The XDSL nest plate begins initialization then.
S404: after initialization finished, the DSL circuit normally activated.During the normal activation of DSL circuit, Line Driver is operated in normal state always, makes the process of line activation to continue.
S405: after DSP detected circuit deexcitation information, includes but not limited to outage, arrearage or deexcitation order, DSP controlled Line Driver alternation in low power consumpting state and normal state through the pin that links to each other with Line Driver.
The line driver alternation is in low power consumpting state and normal state, and promptly line driver a period of time is operated in low power consumpting state, and another section time service is in normal state, and two kinds of operating states are alternately carried out.Wherein, being operated in low power consumpting state can be periodically alternately with the time that is operated in normal state, also can be acyclic replacing.
Embodiment three
As shown in Figure 4, the embodiment of the invention also provides a kind of device, and this device comprises line driver module, digital signal processor module.
Said line driver module, alternation is in low power consumpting state and normal state.
Said digital signal processor module is used for the information that detection line sends, and changes operating state according to detected information Control line driver module.
Said digital signal processor module comprises receiver module; Detection module and control module; The information that said receiver module receiving lines sends, said detection module links to each other with receiver module, and said information is detected; Activate solicited message if detect far-end, then said control module makes said line driver module be operated in normal state; If detect circuit deexcitation information, then said control module makes the alternation of said line driver module in low power consumpting state and normal state.
Embodiment four
The embodiment of the invention also provides a kind of system that reduces the digital user wire DSL power consumption, comprises the device that top embodiment three is provided.
Embodiment five
The embodiment of the invention also provides a kind of system that reduces the digital user wire DSL power consumption, comprises digital signal processor, line driver, main controller.
Said line driver alternation is in low power consumpting state and normal state; Said digital signal processor is used for the information that detection line sends, and detected information is sent to said main controller; Said main controller is used for changing operating state according to the said line driver of said detected information Control.Said digital signal processor comprises first receiver module and first detection module, and said main controller comprises second receiver module and second control module.
The information that the said first receiver module receiving lines sends; First detection module links to each other with said first receiver module; Be used for said information is detected,, then said activation solicited message sent to said second receiver module if detect the activation solicited message of far-end; Second control module is used for the said activation solicited message according to the reception of second receiver module, controls said line driver and is operated in normal state; If detect circuit deexcitation information; Then said circuit deexcitation information is sent to said second receiver module; Second control module is used for the said circuit deexcitation information according to the reception of second receiver module, controls said line driver alternation in low power consumpting state and normal state.
Wherein, said main controller and said digital signal processor can integrate.
Embodiment six
As shown in Figure 5, the embodiment of the invention also provides a kind of method that reduces the digital user wire DSL power consumption.Port E and G link driver Line Driver, F connects main controller.The electronic switch position of this figure is the state that circuit has just powered on, and can make the signal amplifier line impedance of receive direction mate like this.The power down pin of main controller control circuit driver makes line driver be in low power consumpting state.Because signal amplifier line impedance coupling, though line driver is in low power consumpting state, line amplifier still can normally receive remote signaling.
When DSP detects far-end activation solicited message, need that this far-end is activated solicited message and report main controller.Switch in the main controller control chart 5 breaks off b and c, B and C, and a and b connection, A and B is connected.Line driver just is operated in normal state like this.
After DSP detects circuit deexcitation information, need to give main controller with circuit deexcitation information reporting.Switch in the main controller control chart 5 breaks off a and b disconnection, A and B, and c and b connection, C and B is connected.The power down of control circuit driver makes line driver get into low power consumpting state simultaneously.
Certainly, if main controller and DSP integrate, port F can directly meet DSP so, carries out control corresponding by DSP according to the line information of receiving.
The line information of receiving comprises: far-end requesting activation message and circuit deexcitation information.
Through the scheme that present embodiment provided, when DSP detected far-end activation solicited message, the control circuit drive operation was in normal state; When DSP detected circuit deexcitation information, the control circuit drive operation was at low power consumpting state.And when line driver is operated in low energy consumption state, does not influence line amplifier yet and receive remote signaling.Reduce the power consumption of DSL circuit, reached the purpose of energy efficient.
In sum, more than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method that reduces the digital user wire DSL power consumption is characterized in that, comprising:
Control circuit driver Line Driver alternation is in low power consumpting state and normal state;
In said line driver is operated in a period of time of said normal state, the information that the digital signal processor DSP detection line sends,
Activate solicited message if detect far-end; Then control said line driver and be operated in normal state always; After detecting circuit deexcitation information again, said digital signal processor DSP is controlled said line driver alternation in low power consumpting state and normal state.
2. the method for claim 1 is characterized in that, the information that said digital signal processor DSP detection line sends changes operating state according to detected information Control line driver and specifically comprises:
The information that said digital signal processor DSP detection line sends sends to main controller with detected information, and said main controller changes operating state according to the said line driver of detected information Control.
3. the method for claim 1; It is characterized in that; If the said far-end that detects activates solicited message, then control said line driver and be operated in normal state and specifically comprise: activate solicited message if detect far-end, then report said activation solicited message to main controller; Said main controller recovers the driving power of said line driver, and said line driver is operated in normal state;
If the said circuit deexcitation information that detects; Then controlling said line driver alternation specifically comprises at low power consumpting state and normal state: if detect circuit deexcitation information; Then report said circuit deexcitation information to main controller, said main controller is controlled said line driver alternation in low power consumpting state and normal state.
4. the method for claim 1 is characterized in that, when said line driver was operated in normal state, digital signal processor detected far-end and activates solicited message.
5. the method for claim 1 is characterized in that, said the line driver alternation is specifically comprised at low power consumpting state and normal state: make line driver periodically be operated in low power consumpting state and normal state.
6. a digital signal processing device is characterized in that, this device comprises line driver module, digital signal processor module,
Said line driver module, alternation is in low power consumpting state and normal state;
Said digital signal processor module is used for the information that detection line sends, and changes operating state according to detected information Control line driver module;
Said digital signal processor module comprises receiver module; Detection module and control module, the information that said receiver module receiving lines sends, said detection module links to each other with receiver module; Be used in said line driver is operated in a period of time of said normal state; Detect said information, activate solicited message if detect far-end, then said control module is controlled said line driver and is operated in normal state always; After detecting circuit deexcitation information again, said control module is controlled said line driver alternation in low power consumpting state and normal state.
7. digital signal processing device as claimed in claim 6 is characterized in that, said alternation specifically comprises at low power consumpting state and normal state: periodically be operated in low power consumpting state and normal state.
8. a system that reduces the digital user wire DSL power consumption is characterized in that, comprises digital signal processor, line driver, and main controller,
Said line driver alternation is in low power consumpting state and normal state; Said digital signal processor is used in said line driver is operated in a period of time of said normal state, and the information that detection line sends sends to said main controller with detected information; Said main controller is used for changing operating state according to the said line driver of said detected information Control;
Activate solicited message if detect far-end, then said main controller is controlled said line driver and is operated in normal state always, and after detecting circuit deexcitation information again, said main controller is controlled said line driver alternation in low power consumpting state and normal state.
9. system as claimed in claim 8 is characterized in that said digital signal processor comprises first receiver module and first detection module, and said main controller comprises second receiver module and second control module,
The information that the said first receiver module receiving lines sends; First detection module links to each other with first receiver module; Be used to detect the information that said circuit sends, activate solicited message, then said activation solicited message is sent to said second receiver module if detect far-end; Second control module is controlled said line driver and is operated in normal state according to the said activation solicited message that second receiver module receives; If detect circuit deexcitation information; Then said circuit deexcitation information is sent to said second receiver module; Second control module is controlled said line driver alternation in low power consumpting state and normal state according to the said circuit deexcitation information that second receiver module receives.
10. like claim 8 or 9 described systems, it is characterized in that said main controller and said digital signal processor integrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100775185A CN101453336B (en) | 2007-11-28 | 2007-11-28 | Method, apparatus and system for lowering power consumption of digital subscriber line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100775185A CN101453336B (en) | 2007-11-28 | 2007-11-28 | Method, apparatus and system for lowering power consumption of digital subscriber line |
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| CN101453336A CN101453336A (en) | 2009-06-10 |
| CN101453336B true CN101453336B (en) | 2012-04-25 |
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| CN2007100775185A Active CN101453336B (en) | 2007-11-28 | 2007-11-28 | Method, apparatus and system for lowering power consumption of digital subscriber line |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011130902A1 (en) * | 2010-04-19 | 2011-10-27 | 华为技术有限公司 | Method and device for improving output efficiency of line driver power |
| CN102957812B (en) * | 2011-08-19 | 2015-06-03 | 华为技术有限公司 | Method, device and system for reducing energy consumption of xDSL (x digital subscriber line) subscriber board |
| CN105009472B (en) * | 2013-05-31 | 2017-12-15 | 华为技术有限公司 | Poewr control method, transceiver, vector quantization controlled entity and system |
| EP3039851B1 (en) * | 2013-08-29 | 2020-02-19 | Lantiq Beteiligungs-GmbH & Co.KG | Power saving in communication systems |
| CN110601721A (en) * | 2019-10-23 | 2019-12-20 | 四川灵通电讯有限公司 | Dynamic management device for power consumption of digital subscriber line and application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423890A (en) * | 2001-02-13 | 2003-06-11 | 因芬尼昂技术股份公司 | System and method for establishing an XDSL data transfer link |
| CN1816029A (en) * | 2005-02-06 | 2006-08-09 | 华为技术有限公司 | Method for reducing ADSL line transmitting power |
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2007
- 2007-11-28 CN CN2007100775185A patent/CN101453336B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423890A (en) * | 2001-02-13 | 2003-06-11 | 因芬尼昂技术股份公司 | System and method for establishing an XDSL data transfer link |
| CN1816029A (en) * | 2005-02-06 | 2006-08-09 | 华为技术有限公司 | Method for reducing ADSL line transmitting power |
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