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Power management method, system and equipment

A management method and technology for managing equipment, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve problems such as bit error rate increase, crosstalk transient sudden change, transmission power increase, etc.

Inactive Publication Date: 2011-04-27
李海强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In view of this, the embodiment of the present invention provides a power management method to solve the sudden increase of the transmission power of the line, which causes the transient mutation of the crosstalk of the disturbed line in the bundle, the increase of the bit error rate, and finally leads to the loss of the line. line problem

Method used

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  • Power management method, system and equipment

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Embodiment 1

[0030] The embodiment of the present invention provides a method for power management, which can solve the problem of increased crosstalk to adjacent lines when the line transitions from the L2 state to the L0 state. As shown in Figure 3:

[0031] S301: When the data transmission rate on the line decreases, the line transitions from the L0 state to the L2 state, thereby realizing power management; the line that has realized the above power management is now ready to increase the transmission power, that is, the line is ready to be controlled by The L0 state transitions to the L2 state. Before it transitions from the L2 state to the L0 state, the office transceiver unit first sends a state transition request from the L2 state to the L0 state to the SMC.

[0032] S302: The SMC sends an instruction to actively lower the rate to the disturbed lines in the bundle according to the disturbed lines in the bundle that it will affect. The disturbed line in the bundle quickly lowers th...

Embodiment 2

[0038] The difference between the solutions of the second embodiment and the first embodiment is only that the methods for obtaining the down-regulation target rate are different. The specific method is: the central office of each disturbed line in each bundle collects bitmaps for a long time, and establishes a rate influence value model.

[0039] The specific method for establishing the model is: when the line transitions from the L2 state to the L0 state each time, the central office collects the bit map of the disturbed line in the bundle, estimates the impact on the accommodated bits of each subcarrier, and then calculates the disturbed line in the bundle. The rate impact value of the disturbing line. In this way, the down-regulation target rate of the disturbed line can be obtained by subtracting the calculated rate impact value from the current rate of the disturbed line in the bundle.

[0040] Wherein, the collected bit map is collected separately in the L0 state and t...

Embodiment 3

[0043] The difference between the solutions of Embodiment 3 and Embodiments 1 and 2 is also that the methods for obtaining the down-regulation target rate are different.

[0044] The crosstalk effect of the new interfering line on the disturbed line varies with different lines (such as the length of the line, the number of surrounding interfering lines, etc.), and greatly depends on the number of existing interfering sources. For the same line, the received crosstalk is different when there is one interference source and when there are multiple interference sources. When there is one interference source, the crosstalk received by the line is greater than when there are multiple interference sources.

[0045] When a line returns from the L2 state to the L0 state, the SMC knows how many lines are active. Based on this information, the SMC can estimate the amount of Signal to Noise Ratio (SNR) reduction brought by the new interference source to determine the amount of reduction ...

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Abstract

The inventive embodiment relates to digital subscriber line technique and discloses a power management method, which comprises receiving a request for increasing transmission power from a first circuit; determining which in-bundle circuit will be interfered when the transmission power of the first circuit is increased; sending a command of velocity down regulation to the in-bundle interfered circuit; and notifying the first circuit to increase the transmission power after the down regulation of velocity in the in-bundle interfered circuit is completed. The power management method, provided in the inventive embodiment, can solve the problems that the sudden increase in transmission power of the circuit may cause the sudden change in crosstalk transient state of the in-bundle interfered circuit and the rise of code error rate, resulting in the line disconnection. The inventive embodiment also provides a device and a system for power management.

Description

technical field [0001] The present invention relates to digital subscriber line technology, in particular to a power management method, system and equipment. Background technique [0002] Digital Subscriber Line (Digital Subscriber Line, DSL) technology is a high-speed transmission technology for data transmission through telephone twisted pair, namely Unshielded Twist Pair (UTP), including Asymmetrical Digital Subscriber Line (Asymmetrical Digital Subscriber Line) Subscriber Line (ADSL), Very-high-bit-rate Digital Subscriber Line (VDSL), ISDN Digital Subscriber Line (IDSL) based on Integrated Services Digital Network (ISDN) ) and Single-pair High-bit-rate Digital Subscriber Line (Single-pair High-bit-rate Digital Subscriber Line, SHDSL), etc. [0003] In various digital subscriber line technologies (XDSL), in addition to DSL with baseband transmission such as IDSL and SHDSL, DSL with passband transmission uses frequency division multiplexing technology to enable DSL to coe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/28
Inventor 张新军周军方李明冯儒洲
Owner 李海强
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