CN105009472B

CN105009472B - Poewr control method, transceiver, vector quantization controlled entity and system

Info

Publication number: CN105009472B
Application number: CN201380000824.2A
Authority: CN
Inventors: 吕捷; 周斌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2017-12-15
Anticipated expiration: 2033-05-31
Also published as: CN105009472A; WO2014190539A1

Abstract

The invention provides a kind of Poewr control method, transceiver, vector quantization controlled entity and system, it is related to communication technique field.This method is applied in vectored system, and vectored system includes a plurality of circuit, includes multiple subcarriers on every circuit, method includes：The restricted information of the low-power mode subcarrier of corresponding line is obtained, the restricted information of low-power mode subcarrier includes TS LPM or the DTS LPM of corresponding line；FRLPM is calculated according to the restricted information of the low-power mode subcarrier of corresponding line；FRLPM is more than or equal to MRLPM, into low-power mode, selects subcarrier transmission data from the TS LPM of corresponding line according to the restricted information of the low-power mode subcarrier of corresponding line or does not apply the subcarrier in DTS LPM to transmit data.The present invention in transceiver by entering under low-power mode, subcarrier transmission data are selected from the TS LPM of corresponding line or do not apply DTS LPM to transmit data, avoiding LPM circuit packs symbol from closing suddenly causes counteracting error occur, and the stability for avoiding result in All other routes declines.

Description

Poewr control method, transceiver, vector quantization controlled entity and system

Technical field

The present invention relates to communication technical field, more particularly to a kind of Poewr control method, transceiver, vector quantization controlled entity And system.

Background technology

With the rapid development of the communication technology, xDSL（Digital Subscribe Line, digital subscriber line）As A kind of Highspeed Data Transmission Technology, is widely applied.And G.fast（Gigabit DSL）As newest xDSL technologies, by High band is used when it is in data transfer, therefore crosstalk phenomenon is extremely serious.In order to eliminate shadow of the crosstalk to data transfer Ring, vector quantization（Vectoring）Technology is arisen at the historic moment.

In vectored system as shown in Figure 1, when carrying out downlink transfer, each transceiver of sender is as transmission End, each transceiver of recipient is as receiving terminal, and the transmission signal of each transceiver of sender is carrying out IFFT （Inverse Fast Fourier Transform, inverse fast Fourier transform）Needed before conversion by a Canceller （Precoder）Carry out precoding.After precoding and IFFT conversion is carried out to sending signal, it can be sent to.Wherein, under Before row is located at the module for sending data for the Canceller of crosstalk counteracting, so descending Canceller is also referred to as downlink precoding Device, descending counteracting matrix are also referred to as pre-coding matrix.Therefore, descending Canceller is identical with the implication of downlink precoding device, under It is identical with the implication of downlink precoding matrix that row offsets matrix.

In data transmission procedure, in order to realize energy-conservation, there is a kind of DMPS in DSL fields at present（Discontinue Mode For Power Saving, non-continuous mode energy-conservation）Technology.The technology is not when having business datum, by closing such as IFFT DFE（Digital Front End, digital front-end）Processing module and AFE（Analog Front End, AFE(analog front end)）Handle mould Block etc..The digital front-end or AFE(analog front end) of part circuit are closed, is believed equivalent to by the output of the downlink precoding of these circuits Number zero setting, or the input signal zero setting by up Canceller, so as to realize the control purpose of low-power.

In the prior art, the control mode of two kinds of low-power be present.In the first power control mode, partial line is being closed Lu Hou, according to the index of activation circuit, the inverse matrix of the submatrix of activation circuit is calculated, is calculated further according to the inverse matrix corresponding Pre-coding matrix after, according to pre-coding matrix obtain a diagonal matrix, the diagonal matrix got is sent to transceiver, Transceiver is realized according to the diagonal matrix and the power for sending signal is controlled；In second of power control mode, according to sharp The index on hot line road,, will be to submatrix P in order to reduce the amount of calculation inverted after calculating the submatrix for activating circuit_ddInvert Operation carries out approximation, such asWherein D_ddIt is only to include P_ddThe diagonal matrix of diagonal element, B_ddIt is only Include P_ddThe diagonal of off-diagonal element is 0 matrix.Due to D_ddIt is diagonal matrix, so it is to ask diagonal element reciprocal to invert, Amount of calculation very little.Realized afterwards further according to the inverse matrix and the power for sending signal is controlled.

During the present invention is realized, inventor has found that prior art at least has problems with：

Above-mentioned the first power control mode is needed to sub- matrix inversion, because G.fast symbol rate is 48kHz, each Symbol only 21 microseconds, cause the feasibility inverted in the short time not high；Asked although second of power control mode has reduced Inverse amount of calculation, but this kind of mode, in the case where crosstalk is strong, approximate mode causes error larger, causes the stabilization of circuit Property decline.

The content of the invention

In order to solve the problems, such as that prior art is present, the embodiments of the invention provide a kind of Poewr control method, transceiver, Vector quantization controlled entity and system.The technical scheme is as follows：

First aspect, there is provided a kind of Poewr control method, apply in vectored system, the vectored system includes A plurality of circuit, include multiple subcarriers on every circuit, methods described includes：

The restricted information of the low-power mode subcarrier of corresponding line is obtained, low-power mode of the corresponding line carries The low-power mode t easet ofasubcarriers TS-LPM of the restricted information of ripple including corresponding line information or corresponding line it is low Power mode closes t easet ofasubcarriers DTS-LPM information；

Low-power mode full rate is calculated according to the restricted information of the low-power mode subcarrier of the corresponding line FRLPM；

Compare the FRLPM and the low-power mode minimum speed limit MRLPM pre-set size；

If the FRLPM is more than or equal to the MRLPM, into low-power mode, and according to the corresponding line The restricted information of low-power mode subcarrier selects subcarrier transmission data from the TS-LPM of the corresponding line or not applied Subcarrier transmission data in DTS-LPM；

Wherein, the TS-LPM includes the available subcarrier of the corresponding line at low power modes, the DTS- LPM includes the subcarrier that the corresponding line needs to close at low power modes, and the low-power mode is specified On data symbol can shutdown signal or send signal energy saver mode.

With reference in a first aspect, in the first possible implementation of first aspect, the DTS-LPM of the corresponding line Cause the t easet ofasubcarriers that the level of noise of All other routes deteriorates for shutdown signal under the corresponding line low-power mode.

With reference to the first possible implementation of first aspect, in second of possible implementation of first aspect In, shutdown signal causes the level of noise deterioration of All other routes to refer to the corresponding line to the corresponding line at low power modes The normalized pre-coding matrix element modulus value of correspondence be more than pre-determined threshold.

With reference to first aspect, in the third possible implementation of first aspect, the FRLPM is the correspondence Circuit accessible maximum rate at low power modes.

With reference in a first aspect, in the 4th kind of possible implementation of first aspect, if being currently at total power mould Formula, then into before the low-power mode, in addition to：

Notice vector quantization controlled entity VCE is switched to low-power mode by full-power mode, makes the VCE according to described right Answer the restricted information of the low-power mode subcarrier of circuit to update and offset matrix, obtain the first renewal and offset matrix；

The first renewal that the VCE is sent after by the described first renewal counteracting matrix application to Canceller is received to complete Notice, and after the first renewal completion notice is received, into low-power mode.

With reference in a first aspect, in the 5th kind of possible implementation of first aspect, the FRLPM with it is pre- After the low-power mode minimum speed limit MRLPM first set size, in addition to：

If the FRLPM is less than the MRLPM, data are transmitted into full-power mode, and using the TS_FPM, The TS_FPM includes the corresponding line available subcarrier under full-power mode.

With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect In, it is described to enter before full-power mode if being currently at low-power mode, in addition to：

Notice vector quantization controlled entity VCE is switched to full-power mode by low-power mode, makes the VCE according to total power Matrix is offset in pattern t easet ofasubcarriers TS_FPM renewals, is obtained the second renewal and is offset matrix；

The second renewal that the VCE is sent after by the described second renewal counteracting matrix application to Canceller is received to complete Notice, and after the second renewal completion notice is received, into full-power mode, and use TS_FPM transmission numbers Include the corresponding line available subcarrier under full-power mode according to, the TS_FPM.

It is possible with reference to first aspect or the 4th kind of possible implementation of first aspect, the 7th kind in first aspect It is described to enter low-power mode in implementation, including：

The data symbol of subcarrier in the DTS-LPM is sent into signal-off, synchronizing symbol sends signal and opened.

With reference to first aspect, first aspect the first to any of the 7th kind of possible implementation possible reality Existing mode, in the 8th kind of possible implementation of first aspect, methods described also includes：

Judge whether the trigger condition for meeting to update the restricted information of the low-power mode subcarrier of the corresponding line；

If meeting the trigger condition for updating the restricted information of the low-power mode subcarrier of the corresponding line, update The restricted information of the low-power mode subcarrier of the corresponding line, and/or rejudge whether the corresponding line should be entered Enter LPM or FPM.

With reference to the 8th kind of possible implementation of first aspect, in the 9th kind of possible implementation of first aspect In, the trigger condition for judging whether to meet to update the restricted information of the low-power mode subcarrier of the corresponding line, bag Include：Knowing has that new circuit adds, original circuit leaves, the power rating on system neutral road changes or channel matrix has more When new, then the trigger condition for meeting to update the restricted information of the low-power mode subcarrier of the corresponding line is judged.

With reference to the 7th kind of possible implementation of first aspect, in the tenth kind of possible implementation of first aspect In, methods described also includes：

During signal is sent, sent to Canceller and send signal-off or the flag bit of opening for identifier, The Canceller is set to obtain the line set actually closed on the symbol and/or the circuit for sending data according to the flag bit Set, and the signal after precoding is compensated according to the line set and/or the line set of transmission data actually closed.

With reference to first aspect, first aspect the first to any of the tenth kind of possible implementation possible reality Existing mode, it is described to enter after low-power mode in a kind of the tenth possible implementation of first aspect, in addition to：

Monitoring business flow, and when service traffics are more than low-power mode full rate FRLPM, switched by low-power mode To full-power mode.

With reference to first aspect, first aspect the first to any of the tenth kind of possible implementation possible reality Existing mode, in the 12nd kind of possible implementation of first aspect, low-power mode for obtaining corresponding line carries The restricted information of ripple, including：

Receive the TS-LPM or DTS-LPM of the corresponding line that vector quantization controlled entity VCE is sent information, and root According to the restricted information of the low-power mode subcarrier of corresponding line described in the TS-LPM or DTS-LPM acquisition of information.

With reference to the 12nd kind of possible implementation of first aspect, in the 13rd kind of possible realization side of first aspect In formula, the information of the TS-LPM or DTS-LPM for receiving the corresponding line that vector quantization controlled entity VCE is sent it Afterwards, in addition to：

The TS-LPM of the corresponding line or DTS-LPM information is sent to remote transceiver；

The reply that the remote transceiver returns is received, and after being confirmed, with the remote transceiver when specified Between point application the corresponding line TS-LPM or DTS-LPM.

With reference to the 12nd kind of possible implementation of first aspect, in the 14th kind of possible realization side of first aspect In formula, the information of the TS-LPM or DTS-LPM for receiving the corresponding line that vector quantization controlled entity VCE is sent it Afterwards, in addition to：

The TS-LPM or DTS-LPM of the corresponding line of suggestion information are sent to remote transceiver；

Receive information updating of the remote transceiver according to the TS-LPM or DTS-LPM of the corresponding line of suggestion The TS-LPM or DTS-LPM of the renewal that the TS-LPM of the corresponding line is either returned after DTS-LPM information, and carry out true After recognizing, TS-LPM or DTS-LPM using the corresponding line are at the appointed time put with the remote transceiver.

With reference to first aspect, first aspect the first to any of the tenth kind of possible implementation possible reality Existing mode, in the 15th kind of possible implementation of first aspect, low-power mode for obtaining corresponding line carries The restricted information of ripple, including：

Receive the TS-LPM or DTS-LPM of the corresponding line that near-end transceiver is sent information；

According to the low-power mode of corresponding line described in the TS-LPM of the corresponding line or DTS-LPM acquisition of information The restricted information of subcarrier.

With reference to the 15th kind of possible implementation of first aspect, in the 16th kind of possible realization side of first aspect In formula, after the information of the TS-LPM or DTS-LPM for receiving the corresponding line that near-end transceiver is sent, also wrap Include：

Return and reply to the near-end transceiver, and after the near-end transceiver is confirmed, received and dispatched with the near-end Device at the appointed time puts the TS-LPM or DTS-LPM using the corresponding line.

With reference to first aspect, first aspect the first to any of the tenth kind of possible implementation possible reality Existing mode, in the 17th kind of possible implementation of first aspect, low-power mode for obtaining corresponding line carries The restricted information of ripple, including：

Receive the TS-LPM or DTS- of the corresponding line for the near-end transceiver suggestion that near-end transceiver is sent LPM information；

It is corresponding according to the TS-LPM or DTS-LPM of the corresponding line of the near-end transceiver suggestion information updating The TS-LPM or DTS-LPM of circuit, and the corresponding line is obtained according to the TS-LPM or DTS-LPM of the corresponding line of renewal The restricted information of the low-power mode subcarrier on road.

With reference to the 17th kind of possible implementation of first aspect, in the 18th kind of possible realization side of first aspect In formula, the TS-LPM or DTS-LPM of the corresponding line according to the near-end transceiver suggestion information updating pair After the TS-LPM or DTS-LPM that answer circuit, in addition to：

The TS-LPM or DTS-LPM of the corresponding line after renewal information are sent to the near-end transceiver, and in institute State after near-end transceiver confirmed, at the appointed time put with the near-end transceiver using the corresponding line TS-LPM or DTS-LPM。

Second aspect, there is provided a kind of Poewr control method, apply in vectored system, the vectored system includes A plurality of circuit, include multiple subcarriers on every circuit, methods described includes：

Obtain the restricted information of the low-power mode subcarrier of any circuit, the limitation letter of the low-power mode subcarrier The low-power mode of information or corresponding line that breath includes the low-power mode t easet ofasubcarriers TS-LPM of the corresponding line closes Close t easet ofasubcarriers DTS-LPM information；

The restricted information of the low-power mode subcarrier of any circuit is sent to corresponding transceiver, makes the receipts Send out device and low-power mode full rate FRLPM is calculated according to the restricted information of the low-power mode subcarrier of the corresponding line；Than The FRLPM and the low-power mode minimum speed limit MRLPM pre-set size；If the FRLPM is more than or equal to institute MRLPM is stated, then into low-power mode, and according to the restricted information of the low-power mode subcarrier of the corresponding line from described Subcarrier transmission data are selected in the TS-LPM of corresponding line or do not apply the subcarrier in DTS-LPM to transmit data；

Wherein, the TS-LPM includes the available subcarrier of the corresponding line at low power modes, the DTS- LPM includes the subcarrier that the corresponding line needs to close at low power modes, and the low-power mode is to specify number According on symbol can shutdown signal or send signal energy saver mode.

It is described to obtain the low of any circuit in the first possible implementation of second aspect with reference to second aspect The restricted information of power mode subcarrier, including：

For each subcarrier k, the channel matrix H of the subcarrier k is obtained_eq ^k, the H_eq ^kIt is M*M square formation, M To have been added to and will add the circuit of vectored system sum；

According to the H_eq ^kPre-coding matrix P is calculated^k, and obtain the pre-coding matrix P^kIn using d as index son Matrix P^k _dd；

According to the P^k _ddObtain the normalization matrix that diagonal is complete 1

Described in judgementOff diagonal element inModulus value orModulus value whether be more than predetermined threshold value, It is if describedOff diagonal element inModulus value orModulus value be more than the predetermined threshold value, then will described in The low-power mode that subcarrier k adds circuit i or circuit j closes t easet ofasubcarriers DTS_LPM, and by any circuit Restricted information of the DTS-LPM information as the low-power mode subcarrier of any circuit；

Or the TS-LPM of any circuit is obtained according to the DTS_LPM of any circuit, and by any line Restricted information of the TS-LPM on the road information as the low-power mode subcarrier of any circuit.

It is described to add the subcarrier k in second of possible implementation of second aspect with reference to second aspect Circuit i or circuit j DTS_LPM, including：

The subcarrier k is added by the circuit i or line according to the circuit i and circuit j pre-set priority Road j DTS_LPM.

It is described by any circuit in the third possible implementation of second aspect with reference to second aspect The restricted information of low-power mode subcarrier is sent to after corresponding transceiver, in addition to：

Receive the notice that the transceiver is switched to low-power mode by full-power mode；

Matrix is offset according to the information updating of the low-power mode subcarrier of any circuit, obtains the first renewal counteracting Matrix；

Described first renewal is offset into matrix application to Canceller, and it is logical to transceiver transmission the first renewal completion Know, after the transceiver is received the first renewal completion notice, into low-power mode.

It is described by any circuit in the 4th kind of possible implementation of second aspect with reference to second aspect The information of low-power mode subcarrier is sent to after corresponding transceiver, in addition to：

Receive the notice that the transceiver is switched to full-power mode by low-power mode；

Updated according to the full-power mode t easet ofasubcarriers TS-FPM of any circuit and offset matrix, obtain the second renewal Offset matrix；

Described second renewal is offset into matrix application to Canceller, and it is logical to transceiver transmission the second renewal completion Know, make the transceiver receive it is described second renewal completion notice after, into full-power mode, the full-power mode be The power mode of signal must be sent on the data symbol specified.

The third aspect, there is provided a kind of transceiver, apply in vectored system, the vectored system includes a plurality of line Road, include multiple subcarriers on every circuit, the transceiver includes：

Acquisition module, for obtaining the restricted information for the low-power mode subcarrier for determining corresponding line, the corresponding line The restricted information of the low-power mode subcarrier on road includes the low-power mode t easet ofasubcarriers TS-LPM's of the corresponding line The low-power mode of information or corresponding line closes t easet ofasubcarriers DTS-LPM information；

Computing module, the restricted information for the low-power mode subcarrier according to the corresponding line calculate low-power mould Formula full rate FRLPM；

Comparison module, the size for the FRLPM and the low-power mode minimum speed limit MRLPM pre-set；

Control module, for when the FRLPM is more than or equal to the MRLPM, into low-power mode, and according to described The restricted information of the low-power mode subcarrier of corresponding line selects subcarrier to transmit number from the TS-LPM of the corresponding line According to or do not apply subcarrier in DTS-LPM to transmit data；

With reference to the third aspect, in the first possible implementation of the third aspect, if being currently at total power mould Formula, then the transceiver, in addition to：

First notification module, for notifying vector quantization controlled entity VCE to be switched to low-power mode by full-power mode, make The VCE updates according to the restricted information of the low-power mode subcarrier of the corresponding line offsets matrix, obtains the first renewal Offset matrix；

First receiving module, for receiving the VCE after by the described first renewal counteracting matrix application to Canceller The the first renewal completion notice sent；

The control module, for receive it is described first renewal completion notice after, into low-power mode.

With reference to the third aspect, in second of possible implementation of the third aspect, the control module, it is additionally operable to work as When the FRLPM is less than the MRLPM, then into full-power mode, and TS_FPM transmission data, the TS_FPM are used Including the corresponding line available subcarrier under full-power mode.

With reference to second of possible implementation of the third aspect, in the third possible implementation of the third aspect In, if being currently at low-power mode, the transceiver, in addition to：

Second notification module, for notifying the VCE to be switched to full-power mode by low-power mode, make the VCE roots Updated according to full-power mode t easet ofasubcarriers TS_FPM and offset matrix, obtained the second renewal and offset matrix；

Second receiving module, for receiving the VCE after by the described second renewal counteracting matrix application to Canceller The the second renewal completion notice sent；

The control module, for after the second renewal completion notice is received, into full-power mode, and using The TS_FPM transmits data, and the TS_FPM includes the corresponding line available subcarrier under full-power mode.

With reference to the possible implementation of the first of the third aspect or the third aspect, the 4th kind in the third aspect is possible In implementation, the control module, for the data symbol of the subcarrier in the DTS-LPM to be sent into signal-off, together Walk symbol and send signal opening.

With reference to the third aspect, the third aspect the first to any of the 4th kind of possible implementation possible reality Existing mode, in the 5th kind of possible implementation of the third aspect, the transceiver also includes：

Judge module, for the restricted information for judging whether to meet to update the low-power mode subcarrier of the corresponding line Trigger condition；

Update module, the triggering for the restricted information when the low-power mode subcarrier for meeting to update the corresponding line During condition, the restricted information of the low-power mode subcarrier of the corresponding line is updated, and/or rejudges the corresponding line Whether LPM or FPM should be entered.

With reference to the 5th kind of possible implementation of the third aspect, in the 6th kind of possible implementation of the third aspect In, the judge module, for know there is new circuit to add, original circuit leaves, the power rating on system neutral road When change or channel matrix have renewal, then the restricted information for meeting to update the low-power mode subcarrier of the corresponding line is judged Trigger condition.

With reference to the 4th kind of possible implementation of the third aspect, in the 7th kind of possible implementation of the third aspect In, the transceiver also includes：

First sending module, for during signal is sent, being sent to Canceller and sending signal-off for identifier Or the flag bit opened, the Canceller is obtained the line set actually closed on the symbol according to the flag bit And/or the line set of data is sent, and according to the line set actually closed and/or the line set of data is sent to prelisting Signal after code compensates.

With reference to the third aspect, the third aspect the first to any of the 7th kind of possible implementation possible reality Existing mode, in the 8th kind of possible implementation of the third aspect, the transceiver, in addition to：

Monitoring module, for monitoring business flow；

The control module, it is additionally operable to when service traffics are more than low-power mode full rate FRLPM, by low-power mode It is switched to full-power mode.

With reference to the third aspect, the third aspect the first to any of the 7th kind of possible implementation possible reality Existing mode, in the 9th kind of possible implementation of the third aspect, the acquisition module, for receiving the VCE transmissions The TS-LPM or DTS-LPM of the corresponding line information, and according to the TS-LPM or DTS-LPM acquisition of information institute State the restricted information of the low-power mode subcarrier of corresponding line.

With reference to the 9th kind of possible implementation of the third aspect, in the tenth kind of possible implementation of the third aspect In, the transceiver, in addition to：

Second sending module, received for the TS-LPM of the corresponding line or DTS-LPM information to be sent to distal end Send out device；

3rd receiving module, the reply returned for receiving the remote transceiver；

The control module, after being confirmed, at the appointed time put using described right with the remote transceiver Answer the TS-LPM or DTS-LPM of circuit.

With reference to the 9th kind of possible implementation of the third aspect, in a kind of the tenth possible implementation of the third aspect In, the transceiver, in addition to：

3rd sending module, for by the TS-LPM or DTS-LPM of the corresponding line of suggestion information send to Remote transceiver；

4th receiving module, for receive the remote transceiver according to the TS-LPM of the corresponding line of suggestion or The TS-LPM or DTS- for the renewal that the TS-LPM of corresponding line described in DTS-LPM information updating is either returned after DTS-LPM LPM information；

With reference to the third aspect, the third aspect the first to any of the 7th kind of possible implementation possible reality Existing mode, in the 12nd kind of possible implementation of the third aspect, the acquisition module, for receiving near-end transceiver hair The TS-LPM or DTS-LPM of the corresponding line sent information；According to the TS-LPM or DTS-LPM of the corresponding line Acquisition of information described in corresponding line low-power mode subcarrier restricted information.

With reference to the 12nd kind of possible implementation of the third aspect, in the 13rd kind of possible realization side of the third aspect In formula, the transceiver, in addition to：

Module is replied, is replied for being returned to the near-end transceiver；

The control module, for after the near-end transceiver is confirmed, with the near-end transceiver when specified Between point application the corresponding line TS-LPM or DTS-LPM.

With reference to the third aspect, the third aspect the first to any of the 7th kind of possible implementation possible reality Existing mode, in the 14th kind of possible implementation of the third aspect, the acquisition module, for receiving near-end transceiver hair The TS-LPM or DTS-LPM of the corresponding line for the near-end transceiver suggestion sent information；Received according to the near-end Send out the TS-LPM or DTS- of the TS-LPM either DTS-LPM information updating corresponding lines of the corresponding line of device suggestion LPM, and obtain according to the TS-LPM or DTS-LPM of the corresponding line of renewal the low-power mode subcarrier of the corresponding line Restricted information.

With reference to the 14th kind of possible implementation of the third aspect, in the 15th kind of possible realization side of the third aspect In formula, the transceiver, in addition to：

4th sending module, for sending the TS-LPM or DTS- of the corresponding line after renewal to the near-end transceiver LPM information；

Fourth aspect, there is provided a kind of vector quantization controlled entity, apply in vectored system, the vectored system bag A plurality of circuit is included, includes multiple subcarriers on every circuit, the vector quantization controlled entity includes：

Acquisition module, the restricted information of the low-power mode subcarrier for obtaining any circuit, the low-power mode The restricted information of subcarrier includes the low-power mode t easet ofasubcarriers TS-LPM of corresponding line information or corresponding line Low-power mode close t easet ofasubcarriers DTS-LPM information；

First sending module, for the restricted information of the low-power mode subcarrier of any circuit to be sent to correspondingly Transceiver, make the transceiver according to the restricted information of the low-power mode subcarrier of the corresponding line calculate low-power mould Formula full rate FRLPM；Compare the FRLPM and the low-power mode minimum speed limit MRLPM pre-set size；It is if described FRLPM is more than or equal to the MRLPM, then into low-power mode, and according to the low-power mode subcarrier of the corresponding line Restricted information subcarrier transmission data are selected from the TS-LPM of the corresponding line or do not apply subcarrier in DTS-LPM Transmit data；

With reference to fourth aspect, in the first possible implementation of fourth aspect, the acquisition module, including：

First acquisition unit, for for each subcarrier k, obtaining the channel matrix H of the subcarrier k_eq ^k, the H_eq ^k It is M*M square formation, M is the circuit sum that has been added to and will add vectored system；

Second acquisition unit, for according to the H_eq ^kPre-coding matrix P is calculated^k, and obtain the pre-coding matrix P^kIn using d as index submatrix P^k _dd；

3rd acquiring unit, for according to the P^k _ddObtain the normalization matrix that diagonal is complete 1

Judging unit, it is described for judgingOff diagonal element inModulus value orModulus value it is whether big In predetermined threshold value；

Unit is added, for when describedOff diagonal element inModulus value orModulus value be more than it is described During predetermined threshold value, the low-power mode that the subcarrier k is added to circuit i or circuit j closes t easet ofasubcarriers DTS_LPM；

Determining unit, for the low-power mould using the DTS-LPM of any circuit information as any circuit The restricted information of sub-carriers；Or the TS-LPM of any circuit is obtained according to the DTS_LPM of any circuit, and Restricted information using the TS-LPM of any circuit information as the low-power mode subcarrier of any circuit.

With reference to the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect In, the acquisition module, including：

The addition unit, for according to the priority of the circuit i and circuit j pre-set by the subcarrier k Add the DTS_LPM of the circuit i or circuit j.

With reference to fourth aspect, in the third possible implementation of fourth aspect, the vector quantization controlled entity, go back Including：

First receiving module, the notice of low-power mode is switched to for receiving the transceiver by full-power mode；

Square is offset in first update module, the information updating for the low-power mode subcarrier according to any circuit Battle array, obtain the first renewal and offset matrix；

First application module, for the described first renewal to be offset into matrix application to Canceller；

Second sending module, for sending the first renewal completion notice to the transceiver, receive the transceiver After the first renewal completion notice, into low-power mode.

With reference to fourth aspect, in the 4th kind of possible implementation of fourth aspect, the vector quantization controlled entity, go back Including：

Second receiving module, the notice of full-power mode is switched to for receiving the transceiver by low-power mode；

Second update module, offset for being updated according to the full-power mode t easet ofasubcarriers TS-FPM of any circuit Matrix, obtain the second renewal and offset matrix；

Second application module, for the described second renewal to be offset into matrix application to Canceller；

3rd sending module, for sending the second renewal completion notice to the transceiver, receive the transceiver After the second renewal completion notice, into full-power mode, the full-power mode is on the data symbol specified The power mode of signal must be sent.

5th aspect, there is provided a kind of power control system, the system include：Transceiver and vector quantization controlled entity；

Wherein, the transceiver such as appointing in the third aspect to the 15th kind of possible implementation of the third aspect Transceiver described in one possible implementation；

The vector quantization controlled entity such as fourth aspect is into the 4th kind of possible implementation of fourth aspect Vector quantization controlled entity described in any possible implementation.

The beneficial effect of technical scheme provided in an embodiment of the present invention is：

By transceiver in the information or the corresponding line of DTS-LPM information for obtaining the TS-LPM for including corresponding line After the restricted information of low-power mode subcarrier, calculated according to the restricted information of the low-power mode subcarrier of corresponding line FRLPM, and after relatively FRLPM is more than or equal to MRLPM, into low-power mode, according to the low-power mode of corresponding line The restricted information of carrier wave selects subcarrier transmission data from TS-LPM or does not apply the subcarrier in DTS-LPM to transmit data, Cause counteracting error occur so as to avoid LPM circuit packs symbol from closing suddenly, avoid under the stability for causing All other routes Drop.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

Fig. 1 is a kind of vectored system provided in an embodiment of the present invention；

Fig. 2 is a kind of Poewr control method flow chart that the embodiment of the present invention one provides；

Fig. 3 is another Poewr control method flow chart that the embodiment of the present invention one provides；

Fig. 4 is a kind of Poewr control method flow chart that the embodiment of the present invention two provides；

Fig. 5 is a kind of Poewr control method flow chart that the embodiment of the present invention three provides；

Fig. 6 is the structural representation for the first transceiver that the embodiment of the present invention four provides；

Fig. 7 is the structural representation for second of transceiver that the embodiment of the present invention four provides；

Fig. 8 is the structural representation for the third transceiver that the embodiment of the present invention four provides；

Fig. 9 is the structural representation for the 4th kind of transceiver that the embodiment of the present invention four provides；

Figure 10 is the structural representation for the 5th kind of transceiver that the embodiment of the present invention four provides；

Figure 11 is the structural representation for the 6th kind of transceiver that the embodiment of the present invention four provides；

Figure 12 is the structural representation for the 7th kind of transceiver that the embodiment of the present invention four provides；

Figure 13 is the structural representation for the 8th kind of transceiver that the embodiment of the present invention four provides；

Figure 14 is the structural representation for the 9th kind of transceiver that the embodiment of the present invention four provides；

Figure 15 is the structural representation for the tenth kind of transceiver that the embodiment of the present invention four provides；

Figure 16 is the structural representation for the first vector quantization controlled entity that the embodiment of the present invention five provides；

Figure 17 is a kind of structural representation for acquisition module that the embodiment of the present invention five provides；

Figure 18 is the structural representation for second of vector quantization controlled entity that the embodiment of the present invention five provides；

Figure 19 is the structural representation for the third vector quantization controlled entity that the embodiment of the present invention five provides；

Figure 20 is a kind of structural representation for power control system that the embodiment of the present invention six provides.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.

Embodiment one

The embodiments of the invention provide a kind of Poewr control method, this method is applied in vectored system, the vector quantization System includes a plurality of circuit, includes multiple subcarriers on every circuit, and the side of the present embodiment offer is realized with the angle of transceiver Exemplified by method, referring to Fig. 2, the method flow that the present embodiment provides includes：

201：The restricted information of the low-power mode subcarrier of corresponding line is obtained, low-power mode of corresponding line carries The restricted information of ripple includes the TS-LPM of corresponding line（Tone Set for Low Power Mode, low-power mode subcarrier Set）Information or corresponding line DTS-LPM（Disable Tone Set forLow Power Mode, low-power mode Close t easet ofasubcarriers）Information；

202：FRLPM is calculated according to the restricted information of the low-power mode subcarrier of corresponding line（Full Rate for Low Power Mode, low-power mode full rate）；

203：Compare FRLPM and the MRLPM pre-set（Minimum Rate for Low Power Mode, low-power Pattern minimum speed limit）Size；

204：If FRLPM is more than or equal to MRLPM, into low-power mode, and according to the low-power mould of corresponding line The restricted information of sub-carriers selects subcarrier transmission data from the TS-LPM of corresponding line or does not apply son in DTS-LPM Carrier-wave transmission data；

Wherein, TS-LPM includes the available subcarrier of corresponding line at low power modes, and DTS-LPM includes corresponding Circuit needs the subcarrier closed at low power modes, low-power mode be on specified data symbol can shutdown signal or Send the energy saver mode of signal.

With VCE（Vectoring Control Entity, vector quantization controlled entity）Angle realize the present embodiment provide Method exemplified by, referring to Fig. 3, the present embodiment provide method flow include：

301：Obtain the restricted information of the low-power mode subcarrier of any circuit, the limitation letter of low-power mode subcarrier Breath includes the TS-LPM of corresponding line information or the DTS-LPM of corresponding line information；

302：The restricted information of the low-power mode subcarrier of any circuit is sent to corresponding transceiver, makes transceiver FRLPM is calculated according to the restricted information of the low-power mode subcarrier of corresponding line；Compare FRLPM and the MRLPM pre-set Size；If FRLPM is more than or equal to MRLPM, carried into low-power mode, and according to low-power mode of corresponding line The restricted information of ripple selects subcarrier transmission data from the TS-LPM of corresponding line or does not apply the subcarrier in DTS-LPM to pass Transmission of data；

Wherein, TS-LPM includes the available subcarrier of corresponding line at low power modes, and DTS-LPM includes corresponding Circuit needs the subcarrier closed at low power modes, and low-power mode is can shutdown signal or hair in specified data symbols The energy saver mode for the number of delivering letters.

The method that the present embodiment provides, the TS-LPM for including corresponding line information or DTS- are being obtained by transceiver After the restricted information of the low-power mode subcarrier of the corresponding line of LPM information, according to the low-power mode of corresponding line The restricted information of carrier wave calculates FRLPM, and after relatively FRLPM is more than or equal to MRLPM, into low-power mode, according to corresponding The restricted information of the low-power mode subcarrier of circuit selects subcarrier transmission data from TS-LPM or not applied in DTS-LPM Subcarrier transmission data, so as to avoid LPM circuit packs symbol suddenly close cause counteracting error occur, avoiding causes it The stability of his circuit declines.

Embodiment two

The embodiments of the invention provide a kind of Poewr control method, with Fig. 1（a）Shown down direction and Fig. 1（b）It is shown Up direction vectored system in sender and recipient M be present（K ＞ 0）Individual transceiver, and corresponding K（K ＞ 0）It is individual Exemplified by subcarrier, then in kth（K=1~K）On individual subcarrier, downstream signal transmitting procedure can be written as form：

x^'k=P^k.x^k（1）

y^k=Feq^k.(H^k.P^k.x^k+γ^k) （2）

Wherein, P^kIdentify the counteracting matrix of k-th of subcarrier, size M*M；

H^kIdentify channel matrix corresponding to k-th of subcarrier, size M*M；

Feq^kIdentify the FEQ of k-th of subcarrier（Frequency Equalizer, frequency domain equalizer）Matrix, size M* M, and Feq^kFor diagonal matrix；Its effect is that reception signal is reverted into transmission signal, and descending FEQ is in the transceiver of recipient Realize, its theoretical value H^kCornerwise inverse；

x^kIdentifying transmission signal of the M sender's transceiver before by Canceller, size on k-th of subcarrier is M*1；

x^'kIdentifying transmission signal of the M sender's transceiver after by Canceller, size on k-th of subcarrier is M*1；

y^kIdentify the reception signal of M recipient's transceiver on k-th of subcarrier, size M*1；

γ^kIdentify the noise signal of M recipient's transceiver on k-th of subcarrier, size M*1.

In kth（K=1~K）On individual subcarrier, uplink signal transmissions process can be written as form：

y^k=Feq^k.W^k.(H^k.x^k+γ^k) （3）

Wherein, W^kIdentify the counteracting matrix of k-th of subcarrier, size M*M；

H^kIdentify channel matrix corresponding to k-th of uplink sub-carrier, size M*M；

Feq^kIdentify the FEQ of k-th of subcarrier（Frequency Equalizer, frequency domain equalizer）Matrix, size M* M, and Feq^kFor diagonal matrix；Its effect is that reception signal is reverted into transmission signal, and up FEQ is in the transceiver of recipient Realize, the cornerwise inverses of its theoretical value Hk；

Identify the reception signal of M recipient's transceiver on k-th of subcarrier, size M*1；

Identify reception signal of the M recipient's transceiver after by Canceller, size M*1 on k-th of subcarrier；

In addition, the method that the present embodiment provides, when carrying out data transmission, it is symbol, time-division that it, which transmits data and sends unit, Multiplexed frame or superframe.Wherein, the length of each time division multiple frame is 36 symbols, and wherein 35 are data symbol, and each In time division multiple frame, part above sends downstream signal, and part below sends upward signal, and another symbol is up and down The space that row is sent, does not send signal.And 8 time division multiple frames form a superframe, therefore the length of a superframe is 288 Symbol, wherein 280 are data symbol, in 280 data symbols, there are a uplink synchronous symbol and a down-going synchronous symbol Number, remaining 278 symbols are data symbol, for transmitting data.

For up direction, method provided in an embodiment of the present invention can limit the size for offsetting each element of matrix, So as to avoid being cancelled receiving terminal noise device amplification.Therefore, to up performance loss avoid also have obvious effect.

In conjunction with the above, the power control mode provided the present embodiment carries out that explanation is explained in detail.Referring to figure 4, the method flow that the present embodiment provides includes：

401：VCE obtains the restricted information of the low-power mode subcarrier of any circuit, the low-power mode subcarrier Restricted information includes the TS-LPM of corresponding line information or the DTS-LPM of corresponding line information；

For the step, LPM is low-power mode, and low-power mode is can shutdown signal on specified data symbol Or the energy saver mode of signal is sent, specifically it may correspond in the L2 states such as low power state L2.0 in G.fast, L2.1, L2.2 Any state.Compared with low-power mode, full-power mode is the work(that signal must be sent on specified data symbol Rate pattern.In addition, the full-power mode subcarrier that uses is not constrained by the restricted information of low-power mode subcarrier.Due to TS-LPM includes the available subcarrier any circuit at low power modes, and the present embodiment is using DTS-LPM as low-power mode The t easet ofasubcarriers of closing.The DTS-LPM of corresponding line is that shutdown signal causes All other routes under corresponding line low-power mode Level of noise deterioration t easet ofasubcarriers.Wherein, shutdown signal causes All other routes to corresponding line at low power modes The normalized pre-coding matrix element modulus value of correspondence that level of noise deterioration refers to corresponding line is more than pre-determined threshold.

VCE, can be by analyzing each subcarrier when obtaining the restricted information of low-power mode subcarrier of any circuit Pre-coding matrix/counteracting matrix, estimate cause at low power modes All other routes stability decline t easet ofasubcarriers, DTS-LPM is obtained, the restricted information using DTS-LPM information as the low-power mode subcarrier of the circuit, or, according to DTS-LPM and then the TS-LPM for determining any circuit, using TS-LPM information as the low-power mode subcarrier of the circuit Restricted information.

When it is implemented, the step 401 can be achieved by the steps of：

Step 1：For each subcarrier k, acquisition subcarrier k channel matrix H_eq ^k, H_eq ^kIt is M*M square formation, M is Have been added to and will add the circuit sum of vectored system；

For the step, obtaining the mode of subcarrier k channel matrix can realize according to existing acquisition modes, to obtain Exemplified by channel matrix corresponding to k-th of subcarrier, then sender first on the synchronizing symbol of k-th of subcarrier to recipient Send orthogonal pilot frequency sequence, and obtain the error sampled value that recipient returns according to the orthogonal pilot frequency sequence, afterwards, VCE according to The orthogonal pilot frequency sequence and error sampled value can estimate the channel matrix H corresponding to k-th of subcarrier^kOr H_eq ^k.Wherein, H_eq ^kFor normalized channel matrix, its diagonal entry value all 1.

Step 2：According to H_eq ^kPre-coding matrix P is calculated^k, and obtain pre-coding matrix P^kIn using d as index sub- square Battle array P^k _dd；

For the step, according to H_eq ^kPre-coding matrix P is calculated^kWhen, it can be realized by way of matrix inversion, That is pre-coding matrix P^kIt is H_eq ^kInverse matrix.The calculating process can be according to the mode reality of existing acquisition pre-coding matrix Existing, the present embodiment is not especially limited to this.

On P^k _ddAcquisition modes, P^k _ddIt is the pre-coding matrix between low-power mode circuit, is that a size is nd* Nd square formation, when it is implemented, can be by P^kThe submatrix using d as index is taken in matrix, obtains submatrix P^k _dd.Wherein, d For any bar circuit in all circuits in vectored system.

Step 3：According to P^k _ddObtain the normalization matrix that diagonal is complete 1

For the step, according to P^k _ddObtain the normalization matrix that diagonal is complete 1Mode have it is a variety of, for example, right P^k _ddDiagonal normalized is carried out, decomposition obtains a diagonal matrix D^k _ddWith the normalization matrix that a diagonal is complete 1Product P^k _dd=D^k _dd.Thus the normalization matrix that diagonal is complete 1 is obtained

Wherein, D^k _ddIt is a diagonal matrix, is P^k _ddDiagonal matrix.It is the matrix that a diagonal is complete 1, this Inventive embodiments are referred to as normalized pre-coding matrix or normalized counteracting matrix.In the present embodiment, the step is only Obtain diagonal normalization matrixA kind of method, others normalization pre-coding matrixes methods can be used for this reality Example is applied, the present embodiment is not especially limited to this.

Step 4：JudgeOff diagonal element inModulus value orModulus value whether be more than predetermined threshold value；

For the step, the present embodiment is not limited specifically the size of predetermined threshold value, for example, can be 0.2, thenOff diagonal element inModulus value orModulus value whether be more than 0.2, if it is greater, then perform step 5. Otherwise it is assumed that subcarrier k is available subcarrier.

Step 5：IfOff diagonal element inModulus value orModulus value be more than predetermined threshold value, then Subcarrier k is added to circuit i or circuit j DTS_LPM；

For the step, it is only necessary to subcarrier k is added into di, the DTS_LPM of a circuit in dj two lines road, That is, it is only necessary to which by di, signal of the one of circuits of dj in subcarrier k is arranged to 0 can, specifically sets di also It is dj, certain priority can be set, shut-off rule is determined according to priority.A kind of the most frequently used mode is preferentially to be arranged on Add vector（Vector quantization）The DTS_LPM of the circuit of system, rather than have been added to the DTS_ of the circuit of Vector systems LPM.In addition, the set-up mode of priority can also take following Three models：

Activation（showtime）Circuit mode of priority：The priority for having activated circuit is set to add the preferential of circuit higher than new Level.It can ensure that the transmission rate fluctuation for having activated circuit is smaller using this pattern.

Subcarrier alternate mode：Different priority is set on different subcarriers for same circuit.Using symbol as Exemplified by m1 circuit and symbol is m2 circuit, then the priority of m1 circuits can be set above m2 lines in odd subcarriers The priority on road, and the priority of m1 circuits is set below to the priority of m2 circuits in even subcarriers.Using this Pattern can be equalized the performance of all circuits, so as to avoid the performance inconsistency of some circuits excessive.

User's Setting pattern：Operator can be according to the business demand of user, by the use high to data transmission rates demands The priority of circuit corresponding to family is arranged to high.

For the pattern of above-mentioned three kinds setting priority, when carrying out priority setting to each bar circuit, can arbitrarily choose One of which, only need to be the step of the setting circuit priority regardless of whether set the priority of circuit using which kind of above-mentioned pattern Performed during the method that first execution the present embodiment provides, when subsequently performing the method that the present embodiment provides again, without holding again The row step, when and if only if need to adjust the priority of each bar circuit, perform the step of each bar circuit priority is set.

The method application reference number for more according to priority determining shut-off rule is PCT/CN2013/075148 patent document Content, the present embodiment will not be repeated here.

Step 6：Limitation using the DTS-LPM of any circuit information as the low-power mode subcarrier of any circuit Information, or, the TS-LPM of any circuit is obtained according to the DTS_LPM of any circuit, TS-LPM information is any as this The restricted information of the low-power mode subcarrier of circuit.

For the step, due to that can realize whether any subcarrier k is added into corresponding line by above-mentioned steps 1-5 DTS-LPM, thus all subcarriers are realized with the DTS-LPM for whether being added into corresponding line according to above-mentioned steps 1-5, by This can obtain the DTS_LPM of all circuits, low work(that can be directly using the DTS-LPM of any circuit information as any circuit The restricted information of rate pattern subcarrier.In addition to this it is possible to the TS-FPM or initial TS-LPM of every circuit are removed DTS_LPM, the TS-LPM of any circuit is obtained, using TS-LPM information as the low-power mode subcarrier of any circuit Restricted information.

402：The restricted information of the low-power mode subcarrier of any circuit is sent to corresponding transceiver by VCE；

For the step, the restricted information of the low-power mode subcarrier of any circuit is sent to corresponding transmitting-receiving by VCE During device, if the restricted information of the low-power mode subcarrier for any circuit that VCE is got is DTS-LPM information, VCE DTS-LPM information is sent to corresponding transceiver；If the low-power mode subcarrier for any circuit that VCE is got Restricted information is TS-LPM information, then TS-LPM information is sent to corresponding transceiver by VCE.Transceiver corresponding to making is such as Fruit enters low-power mode, does not apply DTS-LPM subcarrier to send data, i.e., on pent subcarrier DTS_LPM, FTU is in data symbol（Data symbol）The signal of upper transmission is 0, for descending, that is, into precoder or Canceller Signal beforeIn formula, signal that symbol u is indicated entry into before precoding/Canceller, subscript di represents the Di bar circuits,Represent that di lines u signals on all subcarriers that DTS-LPM-di is specified are 0.

But in the sync symbol partly specified（Synchronizing symbol）It is not 0 that should keep sending signal, to ensure FEQ Training with channel H can be normally carried out, to cause these pent subcarriers（The subcarrier that data symbol are zeroed out）Will It can be activated again.The present embodiment is not defined to the mode reactivated, for example, PCT/ can be referred to specifically The content of CN2013/075148 patent document, the present embodiment will not be repeated here.

In addition, it is necessary to explanation, said process describe the TS- of down direction so that pre-coding matrix is handled as an example LPM-di（Or DTS-LPM）Application process.In up direction, handling process is the same, and the object of processing is to offset matrix, rather than Pre-coding matrix.

403：Transceiver obtains the restricted information of the low-power mode subcarrier of corresponding line；

For the step, the mode that transceiver obtains the restricted information of the low-power mode subcarrier of corresponding line can have It is a variety of, it is that acquisition modes can be divided into including but not limited to following three kinds of sides by remote transceiver or near-end transceiver according to transceiver Formula：

Mode one：Receive the TS-LPM or DTS-LPM of the corresponding line that VCE is sent information, and according to TS-LPM or The restricted information of the low-power mode subcarrier of person DTS-LPM acquisition of information corresponding line.

Under this kind of mode, transceiver is near-end transceiver, directly can obtain TS-LPM's or DTS-LPM from VCE sides Information.If what is got is DTS-LPM information, TS-FPM or initial TS-LPM are removed into DTS_LPM, so that it may obtain The TS-LPM of any circuit.

Further, because the transceiver is near-end transceiver, in order that remote transceiver can obtain TS-LPM, the receipts Device is sent out after TS-LPM is got, can also include sending the TS-LPM of corresponding line or DTS-LPM information to remote The step of holding transceiver, and in the reply for receiving remote transceiver and returning, and after being confirmed, specified with remote transceiver Time point applies the TS-LPM or DTS-LPM of corresponding line.

Alternatively, the transceiver TS-LPM of the corresponding line of suggestion or DTS-LPM information can also be sent to Remote transceiver；And corresponding line is updated according to the TS-LPM or DTS-LPM of the corresponding line of suggestion receiving remote transceiver The TS-LPM or DTS-LPM of the renewal that the TS-LPM on road is either returned after DTS-LPM information, and after being confirmed, with Remote transceiver at the appointed time puts the TS-LPM or DTS-LPM using corresponding line.

Mode two：Receive the TS-LPM or DTS-LPM of the corresponding line that near-end transceiver is sent information；According to corresponding The restricted information of the low-power mode subcarrier of the TS-LPM or DTS-LPM of circuit acquisition of information corresponding line.

Under this kind of mode, transceiver is remote transceiver, near-end transceiver from VCE sides directly obtain TS-LPM or After DTS-LPM information, the TS-LPM got or DTS-LPM information is sent to distal end by near-end transceiver and received and dispatched Device, the transceiver is set to receive the TS-LPM or DTS-LPM of the corresponding line that near-end transceiver is sent information；According to corresponding line The restricted information of the low-power mode subcarrier of the TS-LPM or DTS-LPM on road acquisition of information corresponding line.

For this kind of mode, if what is got is DTS-LPM information, can be determined according to DTS-LPM information DTS-LPM, TS-FPM or initial TS-LPM are removed into DTS_LPM afterwards, so that it may obtain the TS-LPM of any circuit.

Further, the transceiver proximally transceiver can also return after remote transceiver gets TS-LPM Reply, and after near-end transceiver is confirmed, at the appointed time put with near-end transceiver using corresponding line TS-LPM or Person DTS-LPM.

Mode three：Receive the TS-LPM or DTS- of the corresponding line for the near-end transceiver suggestion that near-end transceiver is sent LPM information；According to the TS-LPM or DTS-LPM of the corresponding line of near-end transceiver suggestion information updating corresponding line TS-LPM or DTS-LPM, and obtain according to the TS-LPM or DTS-LPM of the corresponding line of renewal the low-power of corresponding line The restricted information of pattern subcarrier.

Under this kind of mode, transceiver is similarly remote transceiver, but near-end transceiver from VCE sides obtain TS-LPM or After DTS-LPM information, the TS-LPM got or DTS-LPM information is not directly sent to the transceiver, and It is that the TS-LPM or DTS-LPM of the corresponding line that near-end transceiver is suggested information are sent to the transmitting-receiving by near-end transceiver Device, make the TS-LPM or DTS-LPM of the corresponding line of the near-end transceiver suggestion of reception near-end transceiver transmission information；Root According to near-end transceiver suggestion corresponding line TS-LPM either the TS-LPM of DTS-LPM information updating corresponding line or DTS-LPM, and determine according to the TS-LPM or DTS-LPM of the corresponding line of renewal the low-power mode subcarrier of corresponding line Restricted information.

Further, after the information that the transceiver gets TS-LPM or DTS-LPM from remote transceiver, proximally Transceiver sends the TS-LPM or DTS-LPM of the corresponding line after renewal information, and after near-end transceiver is confirmed, The TS-LPM or DTS-LPM using corresponding line are at the appointed time put with near-end transceiver.

Further, the present embodiment is not to the TS-LPM or the lattice of DTS-LPM information involved by above-mentioned each mode Formula is defined, when it is implemented, including but is not limited to using following any mode：

Mode 1：Sub-carrier indices including closing, as shown in table 1：

Table 1

The subcarrier 1 of closing

The subcarrier 2 of closing

...

The subcarrier n of closing

Mode 2：TS-LPM or DTS-LPM information includes the power gain factors of all subcarriers, if power increases The beneficial factor is 0, represents that the subcarrier is located at DTS-LPM set, it should close.If power gain factors are not 0, the son is represented Carrier wave is located at TS-LPM set, can normally send data, as shown in table 2：

Table 2

For this kind of mode, if sending all subcarrier informations, subcarrier number is not needed in information.

If only transmitting portion subcarrier information, corresponding subcarrier sequence should be also included before each power gain factors Number.

Mode 3：TS-LPM or DTS-LPM information includes power gain factors and bit carrying number, as shown in table 3：

Table 3

If sending all subcarrier informations, subcarrier number is not needed in information.

It should also include if only transmitting portion subcarrier information, before each power gain factors and bit carrying number corresponding Subcarrier sequence number.

So far, after transceiver obtains the restricted information of the low-power mode subcarrier of corresponding line, can enter accordingly One step determines the TS-LPM or DTS-LPM of corresponding line, then, can be from TS- after transceiver judges to enter low-power mode Subcarrier transmission data are selected in LPM or do not apply the subcarrier in DTS-LPM to transmit data.Because DTS-LPM is corresponding line Shutdown signal causes the t easet ofasubcarriers that the level of noise of All other routes deteriorates under the low-power mode of road, thus does not apply DTS- Subcarrier transmission data in LPM or the selection subcarrier transmission data from TS-LPM, can reduce the interference to All other routes, keep away The stability for exempting from All other routes declines.

Further, triggering transceiver can specifically see below into low-power mode or into the mode of full-power mode Step.

404：Transceiver calculates FRLPM according to the restricted information of the low-power mode subcarrier of corresponding line；

For the step, FRLPM is corresponding line accessible maximum rate at low power modes.The present embodiment is not right The mode that transceiver calculates FRLPM according to the restricted information of the low-power mode subcarrier of corresponding line is defined, including but It is not limited to：

According to the TS-LPM of corresponding line according to formulaCalculate FRLPM；

Specifically, because the restricted information of the low-power mode subcarrier of corresponding line is possible to directly include corresponding line The TS-LPM on road information, therefore, the TS-LPM of corresponding line can be directly determined according to TS-LPM information.It is if in addition, right DTS-LPM of the restricted information including corresponding line of the low-power mode subcarrier of circuit information is answered, then according to DTS-LPM's Information can release TS-LPM information, so that it is determined that the TS-LPM of corresponding line, and be calculated according to above-mentioned formula FRLPM。

Wherein, f_sIt is symbol rate, n is the downlink or uplink data symbols number in each superframe,It is a symbol Number carrying total bit number, Bi_kIt is the bit number of k-th of subcarrier carrying, overhead is expense speed.N is a superframe What can at most be sent is descending（Or up and down）Symbol（Symbol）Number, because under low-power mode, FTU can be closed on demand Signal, so the actual symbolic number that sends can be less than n, specific number can determine according to service traffics, so FRLPM is the pattern The maximum rate that can reach.

405：Transceiver compares FRLPM and the MRLPM pre-set size；If FRLPM is more than or equal to MRLPM, Step 406 is performed, if FRLPM is less than MRLPM, performs step 407；

For the step, due to the TS-LPM subcarriers included and not all subcarrier, thus follow-up transceiver is using When TS-LPM transmits data, the subcarrier used tails off, so performance can have an impact, may not reach the performance of target.For Judge whether performance can reach target, it is necessary to set a MRLPM, this speed is referred to as TRDM (Target Rate For Dicontinous Mode non-continuous modes targeted rate).Set MRLPM operation can be realized by VCE, afterwards again by VCE sends it to transceiver.For example, transceiver is issued to by Q interfaces, in addition, can also be stored to MIB （Management Information Base, management information block）.When transceiver is subsequently using TS-LPM transmission data, most Multipotency reaches MRLPM, then into LPM patterns, otherwise, uses FPM.Therefore, in order to which which kind of pattern clear and definite follow-up transceiver uses Data are transmitted, transceiver needs the size for the MRLPM for comparing FRLPM and pre-setting, if FRLPM is more than or equal to MRLPM, Step 406 is performed, if FRLPM is less than MRLPM, performs step 407.

406：Into low-power mode, according to the restricted information of the low-power mode subcarrier of corresponding line from corresponding line TS-LPM in select subcarrier transmission data or do not apply subcarrier in DTS-LPM to transmit data, flow terminates；

For the step, because FRLPM is more than or equal to MRLPM, then in order to economize on resources, transceiver can enter low-power mould Formula.Into before low-power mode, if transceiver is in low-power mode, low-power mode is remained in i.e. Can, if transceiver is in full-power mode before low-power mode is entered, when transceiver switches to LPM by FPM, made T easet ofasubcarriers change, and channel matrix H changes, and P is also required to change therewith.Therefore, transceiver carries out power During the switching of pattern, VCE is also required to coordinate the switching for carrying out offsetting matrix, to update pre-coding matrix or offset matrix.

Therefore, the step when it is implemented, the present embodiment provide method also comprise the following steps：

Step 1：VCE is according to being not turned off subcarrier（TS-FPM）Calculate pre-coding matrix P or offset matrix W, and by its It is applied to precoder or Canceller.Because pre-coding matrix P or counteracting matrix W are updated, according to renewal after VCE Pre-coding matrix P offsets matrix acquisition TS-LPM (or DTS-LPM), and TS-LPM (or DTS-LPM) is handed down into FTU.

Step 2：Because transceiver is in full-power mode before low-power mode is entered, thus make when transceiver is initial With TS-FPM training parameters, now need in all data symbol（Data symbol）Send data.

Step 3：After having trained parameter, transceiver calculates FRLPM according to TS-LPM (or DTS-LPM).If judge FRLPM is less than MRLPM, then rests on FPM states.Otherwise, it is necessary to be switched to LPM states, the process for being switched to LPM states is shown in 4- 6 steps.

Step 4：FTU uses TS-LPM on data symbol.（Namely the signal of non-TS-LPM subcarriers is set to 0, The signal of zero setting is the signal into before precoder）.But now data, need to be in all data without discontinuous transmission Symbol is sent.

Step 5：FTU notifies VCE to be switched to low-power mode by full-power mode, and VCE is according to the low-power of corresponding line The restricted information renewal pre-coding matrix of pattern subcarrier offsets matrix, and is applied to precoder or Canceller.

For the step, the present embodiment not to VCE according to the restricted information of the low-power mode subcarrier of corresponding line more The method of new pre-coding matrix or counteracting matrix is defined.For example, specifically refer to Application No. PCT/CN2013/075148 Patent document content, the present embodiment will not be repeated here.

Step 6：After VCE has updated pre-coding matrix or offset matrix, notice transceiver renewal is completed, and is sent out to transceiver Send the first renewal completion notice.Now pattern switching terminates, and transceiver can enter LPM states, and data are transmitted using TS-LPM, can With in any data symbol shutdown signal with power saving.

Follow-up phase, all switchings from FPM to LPM can use above-mentioned steps 4-6.

After entering LPM according to above-mentioned flow, the circuit of LPM patterns can close in any data symbol to be sent how The ratio closed and closed, can be according to data traffic（traffic）It is determined that.

Further, after due to closing portion subcarriers, performance has declined, therefore, the method that the present embodiment provides is also Mode including signal compensation, specific compensation way can have a variety of, and the present embodiment is not especially limited to this, including but unlimited In:During signal is sent, sent to Canceller and send signal-off or the flag bit of opening for identifier, make counteracting Device obtains the line set of the line set actually closed with sending data on symbol according to flag bit, and according to actually closing Line set compensates with sending the line set of data to the signal after precoding.

Precoding/Canceller obtains the set d of actual shut-down circuit on the symbol according to flag bit（Pay attention to, this is real The line set that border is closed, is not LPM line sets）With the line set a for sending data.Another implementation method is to receive Hair device does not send mark, and the circuit of closing is not to precoding/any signal of Canceller transmission, and so, precoding/Canceller can be with Judge that FTU is opening or closing according to whether transceiver link has signal, to obtain the set d of shut-down circuit and send number According to line set a.After obtaining d and a, the signal after precoding can be compensated with existing method.Specific compensation method It can be realized by equation below：

Further, it is also possible to application reference number is the content of 201210302733.1 patent document, concrete principle and realization Method, the present invention are not described in detail.

It should be noted that, it is necessary to which state switching can be 1 in Vector systems in the above-mentioned flow of the step Circuit or multiple circuits.If a plurality of circuit is required for switching state, in above-mentioned FTU and VCE interaction In, each FTU interacts with VCE respectively.Circuit except needing switching state, the state of All other routes can be kept not Become, VCE updates coefficient also according to original state.

In addition, when circuit enters LPM patterns, the maximum rate that can reach is FRLPM.Namely will be all transmissible Transmission rate when data symbol is all opened is FRLPM.In order to not had an impact to business processing, the method for the present embodiment offer After circuit enters LPM patterns, in addition to：Monitoring business flow, and when service traffics are more than low-power mode full rate FRLPM When, full-power mode is switched to by low-power mode.

Service traffics can also set service traffics monitoring module by being realized inside transceiver outside transceiver, Transceiver according to the module monitors to service traffics are realized and from LPM states are switched to FPM states, specific handoff procedure refers to this Step 1 in step 406 is to step 6, and here is omitted.

Alternatively, can be with except triggering transceiver from addition to LPM states are switched to FPM states by monitoring business flow By the data in transceiver monitoring caching, when the data of caching reach certain amount, transceiver can also be equally triggered from LPM State is switched to FPM states.It is, of course, also possible to there is other triggering modes, the present embodiment is not especially limited to this.

407：Into full-power mode, and using TS-FPM transmission data, wherein, TS_FPM includes corresponding line in full work( Available subcarrier under rate pattern.

For the step, because FRLPM is less than MRLPM, then in order to ensure data transmission performance, transceiver can enter full work( Rate pattern.Into before full-power mode, if transceiver is in full-power mode, full-power mode is remained in If transceiver is in low-power mode before full-power mode is entered, when transceiver switches to FPM by LPM, institute The t easet ofasubcarriers used change, and channel matrix H changes, and P is also required to change therewith.Therefore, transceiver carries out work( During the switching of rate pattern, VCE is also required to coordinate the switching for carrying out offsetting matrix, to update pre-coding matrix or offset matrix.

Step 1：VCE is according to subcarrier complete or collected works（TS-FPM）Calculate pre-coding matrix P or offset matrix W, but will not It is applied to precoder or Canceller.Then TS-LPM (or DTS-LPM) is obtained according to P/W, and by TS-LPM (or DTS-LPM) It is handed down to FTU.

Step 2：VCE calculates pre-coding matrix P according to TS-LPM t easet ofasubcarriers or offsets matrix W, and handle corresponds to TS- LPM pre-coding matrix P or counteracting matrix W is applied to precoder or Canceller.

Wherein, the present embodiment is not defined to calculating pre-coding matrix or offsetting the method for matrix, for example, can specifically join The content of Application No. PCT/CN2013/075148 patent document is examined, the present embodiment will not be repeated here.

Step 3：Because transceiver is in low-power mode before full-power mode is entered, thus use when FTU is initial TS-LPM subcarrier collection training parameters, and calculate the maximum rate FRLPM under parameter current.

Step 4：After having trained parameter, FTU is according to present rate FRLPM, if judging that FRLPM is more than or equal to MRLPM, Then rest on LPM states.Otherwise, it is necessary to be switched to FPM states, the process for being switched to FPM states is shown in 5-8 steps.

Step 5：FTU notices VCE is switched to FPM by LPM.

Step 6：VCE corresponding to TS-FPM update pre-coding matrix or offset matrix, and be applied to precoder or Canceller.

For the step, not to VCE, the TS-FPM corresponding to updates pre-coding matrix or offsets matrix the present embodiment Method is defined.For example, specifically refer to the content of Application No. PCT/CN2013/075148 patent document, this implementation Example will not be repeated here.

Step 7：After VCE has updated pre-coding matrix or offset matrix, notice transceiver renewal is completed, and is sent out to transceiver Send the second renewal completion notice.Now pattern switching terminates, and transceiver can enter FPM states, and data are transmitted using TS-FPM, with Ensure data transmission performance.

Step 8：FTU uses TS-FPM t easet ofasubcarriers（Pent DTS-LPM subcarriers before namely reactivating Set）, to obtain higher rate.Subsequently, FTU need to send data on all data symbol, not allow close symbol.

Follow-up all switchings from LPM to FPM can use above-mentioned steps 5-8.

In the above-mentioned flow of the step, it is necessary to state switching can be 1 circuit in Vector systems or Multiple circuits.If a plurality of circuit is required for switching state, in above-mentioned FTU and VCE interaction, each FTU points Do not interacted with VCE.Circuit except needing switching state, the state of All other routes can keep constant, VCE also according to Original state updates coefficient.

It should be noted that the method that the present embodiment provides is determining the low-power mode of corresponding line according to above-mentioned flow After the restricted information of subcarrier, further, the method that the present embodiment provides also includes the low-power mould to the corresponding line The step of restricted information of sub-carriers is updated, detailed process are as follows：

Judge whether the trigger condition for meeting the restricted information of the low-power mode subcarrier of renewal corresponding line；

If meeting the trigger condition of the restricted information of the low-power mode subcarrier of renewal corresponding line, renewal is corresponding The restricted information of the low-power mode subcarrier of circuit, and/or rejudge whether corresponding line should enter LPM or FPM.

Specifically, the restricted information of the low-power mode subcarrier of corresponding line is updated, and/or rejudges corresponding line Whether should into LPM or FPM mode refer to the present embodiment offer above-mentioned steps 401 to step 407 phase inside the Pass Hold, the present embodiment is not especially limited to this.

Further, the triggering bar for meeting the restricted information of the low-power mode subcarrier of renewal corresponding line is judged whether Part, include but is not limited to：When knowing there is that new circuit adds, original circuit leaves, the power rating on system neutral road becomes When change or channel matrix have renewal, then the triggering for meeting the restricted information of the low-power mode subcarrier of renewal corresponding line is judged Condition.

The method that the present embodiment provides, the TS-LPM for including corresponding line information or DTS- are being obtained by transceiver After the restricted information of the low-power mode subcarrier of the corresponding line of LPM information, according to the low-power mode of corresponding line The restricted information of carrier wave calculates FRLPM, and after relatively FRLPM is more than or equal to MRLPM, into low-power mode, according to corresponding The restricted information of the low-power mode subcarrier of circuit selects subcarrier transmission data from TS-LPM or not applied in DTS-LPM Subcarrier transmission data, so as to avoid LPM circuit packs symbol suddenly close cause counteracting error occur, avoiding causes it The stability of his circuit declines.In addition, by after relatively FRLPM and the MRLPM size pre-set, according to comparative result LPM states could be entered, can be according to targeted rate automatic adaptation on demand, to meet difference so that scheme is very flexible Application scenarios.

Embodiment three

A kind of Poewr control method is present embodiments provided, the structural representation with reference to shown in Fig. 1, and refer to above-mentioned implementation The content of example one and embodiment two, referring to Fig. 5, the method flow that the present embodiment provides is specific as follows：

501：Transceiver obtains the restricted information of the low-power mode subcarrier of corresponding line, the low-power mode subcarrier Restricted information including corresponding line TS-LPM information or corresponding line DTS-LPM information；

For the step, the present embodiment does not obtain the restricted information of the low-power mode subcarrier of corresponding line to transceiver Mode be defined.For example, refer to the mode in above-described embodiment two described by step 403.Wherein, above-described embodiment two The mode of the restricted information of the low-power mode subcarrier of VCE acquisition corresponding lines involved by middle step 403 refers to above-mentioned The associated description of step 401 and step 402 in embodiment two, is no longer repeated one by one herein.

502：Transceiver calculates FRLPM according to the restricted information of the low-power mode subcarrier of corresponding line；

Specifically, the present embodiment equally not to transceiver in the step according to the low-power mode subcarrier of corresponding line The mode that restricted information calculates FRLPM is defined.For example, the correlation for specifically referring to step 404 in above-described embodiment two is retouched State, here is omitted.

503：Transceiver compares FRLPM and the MRLPM pre-set size；If FRLPM is more than or equal to MRLPM, Step 504 is performed, if FRLPM is less than MRLPM, performs step 505；

Specifically, the present embodiment does not compare transceiver in the step FRLPM and the MRLPM pre-set size equally Mode be defined.For example, specifically referring to the associated description of step 405 in above-described embodiment two, here is omitted.

504：Into low-power mode, according to the restricted information of the low-power mode subcarrier of corresponding line from corresponding line TS-LPM in select subcarrier transmission data or do not apply subcarrier in DTS-LPM to transmit data, flow terminates；

Specifically, the present embodiment does not enter low-power mode to transceiver in the step, according to the low-power of corresponding line The restricted information of pattern subcarrier selects subcarrier transmission data from the TS-LPM of corresponding line or not applied in DTS-LPM The mode of subcarrier transmission data is defined.For example, the associated description of step 406 in above-described embodiment two is referred to, herein No longer repeat one by one.

505：Into full-power mode, and using TS-FPM transmission data, wherein, TS_FPM includes corresponding line in full work( Available subcarrier under rate pattern.

For the step, the present embodiment does not enter full-power mode to transceiver in the step, and is transmitted using TS-FPM The mode of data is defined.For example, referring to the associated description of step 407 in above-described embodiment two, no longer go to live in the household of one's in-laws on getting married one by one herein State.

Example IV

The embodiments of the invention provide a kind of transceiver, for performing above-described embodiment one or embodiment two or embodiment three Function in the method for offer performed by transceiver, the transceiver are applied in vectored system, and vectored system includes a plurality of Circuit, include multiple subcarriers on every circuit.Referring to Fig. 6, the transceiver includes：

Acquisition module 601, the restricted information of the low-power mode subcarrier for obtaining corresponding line, corresponding line it is low The restricted information of power mode subcarrier includes the TS-LPM of corresponding line information or the DTS-LPM of corresponding line information；

Computing module 602, the restricted information for the low-power mode subcarrier according to corresponding line calculate low-power mould Formula full rate FRLPM；

Comparison module 603, for the size for the low-power mode target full rate MRLPM for comparing FRLPM and pre-setting；

Control module 604, for when FRLPM is more than or equal to MRLPM, into low-power mode, and according to corresponding line The restricted information of low-power mode subcarrier select subcarrier transmission data or not apply from the TS-LPM of corresponding line Subcarrier transmission data in DTS-LPM；

Further, if being currently at full-power mode, referring to Fig. 7, the transceiver, in addition to：

First notification module 605, for notifying VCE to be switched to low-power mode by full-power mode, make VCE according to corresponding Matrix is offset in the restricted information renewal of the low-power mode subcarrier of circuit, is obtained the first renewal and is offset matrix；

First receiving module 606, first renewal is being offset into matrix application to sending after Canceller for receiving VCE First renewal completion notice；

Control module 604, for after the first renewal completion notice is received, into low-power mode.

Alternatively, control module 604, it is additionally operable to when FRLPM is less than the MRLPM, then into full-power mode, and make Data are transmitted with TS_FPM, TS_FPM includes corresponding line the available subcarrier under full-power mode.

Alternatively, if being currently at low-power mode, referring to Fig. 8, the transceiver, in addition to：

Second notification module 607, for notifying VCE to be switched to full-power mode by low-power mode, make VCE according to full work( Matrix is offset in rate pattern t easet ofasubcarriers TS_FPM renewals, is obtained the second renewal and is offset matrix；

Second receiving module 608, second renewal is being offset into matrix application to sending after Canceller for receiving VCE Second renewal completion notice；

Control module 604, for after the second renewal completion notice is received, into full-power mode, and using TS_ FPM transmits data, and TS_FPM includes corresponding line the available subcarrier under full-power mode.

Specifically, control module 604, it is synchronous for the data symbol of the subcarrier in DTS-LPM to be sent into signal-off Symbol sends signal and opened.

Referring to Fig. 9, the transceiver also includes：

Judge module 609, the restricted information of the low-power mode subcarrier for judging whether to meet renewal corresponding line Trigger condition；

Update module 610, the triggering for the restricted information when the low-power mode subcarrier for meeting renewal corresponding line During condition, the restricted information of the low-power mode subcarrier of corresponding line is updated, and/or rejudges corresponding line and whether should Into LPM or FPM.

Specifically, judge module 609, for know there is new circuit to add, original circuit leaves, the work(on system neutral road When rate state changes or channel matrix has renewal, then the limit for meeting the low-power mode subcarrier of renewal corresponding line is judged The trigger condition of information processed.

Referring to Figure 10, the transceiver also includes：

First sending module 611, for during signal is sent, being sent to Canceller and sending signal pass for identifier The flag bit for closing or opening, Canceller is obtained the line set actually closed on symbol according to flag bit and/or send number According to line set, and according to the line set actually closed and/or send the line set of data to the signal after precoding Compensate.

Further, referring to Figure 11, the transceiver, in addition to：

Monitoring module 612, for monitoring business flow；

Control module 604, it is additionally operable to, when service traffics are more than FRLPM, full-power mode is switched to by low-power mode.

Further, acquisition module 601, the TS-LPM or DTS-LPM of the corresponding line for receiving VCE transmissions letter Breath, and the restricted information of the low-power mode subcarrier according to TS-LPM or DTS-LPM acquisition of information corresponding line.

Referring to Figure 12, transceiver, in addition to：

Second sending module 613, received and dispatched for the TS-LPM of corresponding line or DTS-LPM information to be sent to distal end Device；

3rd receiving module 614, for receiving the reply of remote transceiver return；

Control module 604, after being confirmed, at the appointed time put with remote transceiver using corresponding line TS-LPM or DTS-LPM.

Referring to Figure 13, transceiver, in addition to：

3rd sending module 615, for the TS-LPM of the corresponding line of suggestion or DTS-LPM information to be sent to remote Hold transceiver；

4th receiving module 616, for receiving TS-LPM or DTS- of the remote transceiver according to the corresponding line of suggestion The TS-LPM or DTS-LPM of the renewal that the TS-LPM of LPM information updating corresponding line is either returned after DTS-LPM letter Breath；

Alternatively, acquisition module 601, the TS-LPM or DTS- of the corresponding line for receiving the transmission of near-end transceiver LPM information；According to the low-power mode subcarrier of the TS-LPM of corresponding line or DTS-LPM acquisition of information corresponding line Restricted information.

Referring to Figure 14, transceiver, in addition to：

Module 617 is replied, returns and replys for proximally transceiver；

Control module 604, for after near-end transceiver is confirmed, application pair at the appointed time to be put with near-end transceiver Answer the TS-LPM or DTS-LPM of circuit.

Alternatively, acquisition module 601, the corresponding line of the near-end transceiver suggestion for receiving the transmission of near-end transceiver TS-LPM or DTS-LPM information；According to the TS-LPM or DTS-LPM of the corresponding line of near-end transceiver suggestion information Update the TS-LPM or DTS-LPM of corresponding line, and TS-LPM or the DTS-LPM acquisition pair of the corresponding line according to renewal Answer the restricted information of the low-power mode subcarrier of circuit.

Referring to Figure 15, transceiver, in addition to：

4th sending module 618, the TS-LPM or DTS- of the corresponding line after renewal are sent for proximally transceiver LPM information；

The transceiver that the present embodiment provides, by obtaining the TS-LPM for including corresponding line information or DTS-LPM After the restricted information of the low-power mode subcarrier of the corresponding line of information, according to the low-power mode subcarrier of corresponding line Restricted information calculates FRLPM, and after relatively FRLPM is more than or equal to MRLPM, into low-power mode, according to corresponding line The restricted information of low-power mode subcarrier selects subcarrier transmission data from TS-LPM or does not apply the son in DTS-LPM to carry Ripple transmits data, causes counteracting error occur so as to avoid LPM circuit packs symbol from closing suddenly, avoiding causes All other routes Stability decline.In addition, by after relatively FRLPM and the MRLPM pre-set size, can just be entered according to comparative result Enter LPM states, can be according to targeted rate automatic adaptation on demand, to meet different applications so that scheme is very flexible Scene.

Embodiment five

A kind of vector quantization controlled entity is present embodiments provided, the entity application is in vectored system, vectored system Including a plurality of circuit, multiple subcarriers are included on every circuit.Referring to Figure 16, the vector quantization controlled entity includes：

Acquisition module 1601, the restricted information of the low-power mode subcarrier for obtaining any circuit, low-power mode The restricted information of subcarrier includes the TS-LPM of corresponding line information or the DTS-LPM of corresponding line information；

First sending module 1602, for the restricted information of the low-power mode subcarrier of any circuit to be sent to correspondingly Transceiver, make transceiver according to the restricted information of the low-power mode subcarrier of corresponding line calculate FRLPM；Compare FRLPM With the MRLPM pre-set size；If FRLPM is more than or equal to MRLPM, into low-power mode, and according to corresponding line The restricted information of the low-power mode subcarrier on road selects subcarrier transmission data from the TS-LPM of corresponding line or not applied Subcarrier transmission data in DTS-LPM；

Further, referring to Figure 17, acquisition module 1601, including：

First acquisition unit 16011, for for each subcarrier k, acquisition subcarrier k channel matrix H_eq ^k, H_eq ^kIt is One M*M square formation, M are the circuit sum that has been added to and will add vectored system；

Second acquisition unit 16012, for according to H_eq ^kPre-coding matrix P is calculated^k, and obtain pre-coding matrix P^kIn Submatrix P using d as index^k _dd；

3rd acquiring unit 16013, for according to P^k _ddObtain the normalization matrix that diagonal is complete 1

Judging unit 16014, for judgingOff diagonal element inModulus value orModulus value whether More than predetermined threshold value；

Unit 16015 is added, for working asOff diagonal element inModulus value orModulus value be more than it is pre- During gating limit value, the low-power mode that subcarrier k is added to circuit i or circuit j closes t easet ofasubcarriers DTS_LPM；

Determining unit 16016, for low-power mode using the DTS-LPM of any circuit information as any circuit The restricted information of carrier wave；Or the TS-LPM of any circuit is obtained according to the DTS_LPM of any circuit, and by any circuit Restricted information of the TS-LPM information as the low-power mode subcarrier of any circuit.

Further, unit 16015 is added, for the priority according to the circuit i that pre-sets and circuit j by subcarrier K adds circuit i or circuit j DTS_LPM.

Further, referring to Figure 18, vector quantization controlled entity, in addition to：

First receives mould 1603, and the notice of low-power mode is switched to for receiving transceiver by full-power mode；

Square is offset in first update module 1604, the information updating for the low-power mode subcarrier according to any circuit Battle array, obtain the first renewal and offset matrix；

First application module 1605, for the first renewal to be offset into matrix application to Canceller；

Second sending module 1606, for sending the first renewal completion notice to transceiver, transceiver is set to receive first After updating completion notice, into low-power mode.

Further, referring to Figure 19, vector quantization controlled entity, in addition to：

Second receives mould 1607, and the notice of full-power mode is switched to for receiving transceiver by low-power mode；

Second update module 1608, offset for being updated according to the full-power mode t easet ofasubcarriers TS-FPM of any circuit Matrix, obtain the second renewal and offset matrix；

Second application module 1609, for the second renewal to be offset into matrix application to Canceller；

3rd sending module 1610, for sending the second renewal completion notice to transceiver, transceiver is set to receive second After updating completion notice, into full-power mode, full-power mode is the work(that signal must be sent on specified data symbol Rate pattern.

The vector quantization controlled entity that the present embodiment provides, the limitation of the low-power mode subcarrier by obtaining any circuit Information, and corresponding transceiver is sent it to, transceiver is believed according to the limitation of the low-power mode subcarrier of corresponding line Breath calculates FRLPM, and is more than or equal to MRLPM in relatively FRLPM, can be according to the low of corresponding line into after low-power mode The restricted information of power mode subcarrier selects subcarrier transmission data from TS-LPM or does not apply DTS-LPM to transmit data, Avoiding LPM circuit packs symbol from closing suddenly causes counteracting error occur, and avoiding causes the stability of All other routes to decline.Separately Outside, by the MRLPM pre-set, FRLPM is calculated according to TS-LPM by the transceiver, and in relatively FRLPM and in advance After the MRLPM of setting size, LPM states could be entered according to comparative result, so that scheme is very flexible, can basis Targeted rate automatic adaptation on demand, to meet different application scenarios.

Embodiment six

A kind of power control system is present embodiments provided, referring to Figure 20, system includes：Transceiver 2001 and vector quantization control Entity 2002 processed；

Wherein, the transceiver that such as above-mentioned example IV provides of transceiver 2001, the content of above-described embodiment four is referred to；The receipts It can be one or more to send out device 2001, and the present embodiment is not defined to the quantity of transceiver 2001.

The vector quantization controlled entity that such as above-mentioned embodiment five provides of vector quantization controlled entity 2002, refers to above-described embodiment five Content.

The system that the present embodiment provides, the TS-LPM for including corresponding line information or DTS- are being obtained by transceiver After the restricted information of the low-power mode subcarrier of the corresponding line of LPM information, according to the low-power mode of corresponding line The restricted information of carrier wave calculates FRLPM, and after relatively FRLPM is more than or equal to MRLPM, into low-power mode, according to corresponding The restricted information of the low-power mode subcarrier of circuit selects subcarrier transmission data from TS-LPM or not applied in DTS-LPM Subcarrier transmission data, so as to avoid LPM circuit packs symbol suddenly close cause counteracting error occur, avoiding causes it The stability of his circuit declines.In addition, by after relatively FRLPM and the MRLPM size pre-set, according to comparative result LPM states could be entered, can be according to targeted rate automatic adaptation on demand, to meet difference so that scheme is very flexible Application scenarios.

It should be noted that：The transceiver and vector controlled entity that above-described embodiment provides are when carrying out Power Control, only With the division progress of above-mentioned each functional module for example, in practical application, can as needed and by above-mentioned function distribution by Different functional modules is completed, i.e., the internal structure of equipment is divided into different functional modules, described above complete to complete Portion or partial function.In addition, transceiver, vector controlled entity, power control system and power control that above-described embodiment provides Embodiment of the method processed belongs to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.

The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.Ordinary skill people Member is appreciated that to realize that all or part of step of above-described embodiment can be completed by hardware, can also referred to by program The related hardware of order is completed, and described program can be stored in a kind of computer-readable recording medium, storage mentioned above Medium can be read-only storage, disk or CD etc..

The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims

1. a kind of Poewr control method, is applied in vectored system, the vectored system includes a plurality of circuit, every circuit It is upper to include multiple subcarriers, it is characterised in that methods described includes：

The restricted information of the low-power mode subcarrier of corresponding line is obtained, the low-power mode subcarrier of the corresponding line Restricted information includes the low-power mode t easet ofasubcarriers TS-LPM information or the low-power of corresponding line of the corresponding line Pattern closes t easet ofasubcarriers DTS-LPM information；

Low-power mode full rate FRLPM is calculated according to the restricted information of the low-power mode subcarrier of the corresponding line；

If the FRLPM is more than or equal to the MRLPM, into low-power mode, and according to the low work(of the corresponding line The restricted information of rate pattern subcarrier selects subcarrier transmission data from the TS-LPM of the corresponding line or does not apply DTS- Subcarrier transmission data in LPM；

Wherein, the TS-LPM includes the available subcarrier of the corresponding line at low power modes, in the DTS-LPM The subcarrier for needing to close at low power modes including the corresponding line, the low-power mode are in specified data symbols On number can shutdown signal or send signal energy saver mode.

2. according to the method for claim 1, it is characterised in that the DTS-LPM of the corresponding line is the corresponding line Shutdown signal causes the t easet ofasubcarriers that the level of noise of All other routes deteriorates under low-power mode.

3. according to the method for claim 2, it is characterised in that the corresponding line at low power modes lead by shutdown signal The level of noise deterioration of All other routes is caused to refer to the normalized pre-coding matrix element modulus value of correspondence of the corresponding line more than pre- Gating limits.

4. according to the method for claim 1, it is characterised in that the FRLPM is the corresponding line in low-power mode Under accessible maximum rate.

5. according to the method for claim 1, it is characterised in that if being currently at full-power mode, into described low Before power mode, in addition to：

Notice vector quantization controlled entity VCE is switched to low-power mode by full-power mode, makes the VCE according to the corresponding line Matrix is offset in the restricted information renewal of the low-power mode subcarrier on road, is obtained the first renewal and is offset matrix；

The first renewal that the VCE is sent after by the described first renewal counteracting matrix application to Canceller is received to complete to lead to Know, and after the first renewal completion notice is received, into low-power mode.

6. according to the method for claim 1, it is characterised in that the FRLPM and the low-power pre-set After pattern minimum speed limit MRLPM size, in addition to：

If the FRLPM is less than the MRLPM, into full-power mode, and TS_FPM transmission data, the TS_ are used FPM includes the corresponding line available subcarrier under full-power mode.

7. according to the method for claim 6, it is characterised in that described to enter entirely if being currently at low-power mode Before power mode, in addition to：

Notice vector quantization controlled entity VCE is switched to full-power mode by low-power mode, makes the VCE according to full-power mode Matrix is offset in t easet ofasubcarriers TS_FPM renewals, is obtained the second renewal and is offset matrix；

The second renewal that the VCE is sent after by the described second renewal counteracting matrix application to Canceller is received to complete to lead to Know, and after the second renewal completion notice is received, into full-power mode.

8. method according to claim 1 or 5, it is characterised in that it is described to enter low-power mode, including：

9. the method according to any claim in claim 1 to 7, it is characterised in that methods described also includes：

If meeting the trigger condition for updating the restricted information of the low-power mode subcarrier of the corresponding line, described in renewal The restricted information of the low-power mode subcarrier of corresponding line, and/or rejudge the corresponding line whether should enter it is low Power mode LPM or full-power mode FPM.

10. according to the method for claim 9, it is characterised in that described to judge whether to meet to update the corresponding line The trigger condition of the restricted information of low-power mode subcarrier, including know there is new circuit to add, original circuit leaves, system When the power rating of middle circuit changes or channel matrix has renewal, then judge to meet the low-power for updating the corresponding line The trigger condition of the restricted information of pattern subcarrier.

11. according to the method for claim 10, it is characterised in that it is described to enter after low-power mode, in addition to：

Monitoring business flow, and when service traffics are more than low-power mode full rate FRLPM, be switched to entirely by low-power mode Power mode.

12. according to the method for claim 10, it is characterised in that the low-power mode subcarrier for obtaining corresponding line Restricted information, including：

The TS-LPM or DTS-LPM of the corresponding line that vector quantization controlled entity VCE is sent information are received, and according to institute State the restricted information of the low-power mode subcarrier of corresponding line described in TS-LPM or DTS-LPM acquisition of information.

13. according to the method for claim 10, it is characterised in that the low-power mode subcarrier for obtaining corresponding line Restricted information, including：

Carried according to the low-power mode of corresponding line described in the TS-LPM of the corresponding line or DTS-LPM acquisition of information The restricted information of ripple.

14. according to the method for claim 10, it is characterised in that the low-power mode subcarrier for obtaining corresponding line Restricted information, including：

Receive the TS-LPM's or DTS-LPM of the corresponding line for the near-end transceiver suggestion that near-end transceiver is sent Information；

According to the TS-LPM or DTS-LPM of the corresponding line of the near-end transceiver suggestion information updating corresponding line TS-LPM or DTS-LPM, and the corresponding line is obtained according to the TS-LPM or DTS-LPM of the corresponding line of renewal The restricted information of low-power mode subcarrier.

15. a kind of transceiver, is applied in vectored system, the vectored system includes a plurality of circuit, is wrapped on every circuit Include multiple subcarriers, it is characterised in that the transceiver includes：

Acquisition module, the restricted information of the low-power mode subcarrier for obtaining corresponding line, the low work(of the corresponding line The restricted information of rate pattern subcarrier includes the low-power mode t easet ofasubcarriers TS-LPM of corresponding line information or right The low-power mode of circuit is answered to close t easet ofasubcarriers DTS-LPM information；

Computing module, it is complete that the restricted information for the low-power mode subcarrier according to the corresponding line calculates low-power mode Speed FRLPM；

Control module, for when the FRLPM is more than or equal to the MRLPM, into low-power mode, and according to the correspondence The restricted information of the low-power mode subcarrier of circuit selected from the TS-LPM of the corresponding line subcarrier transmission data or The subcarrier in DTS-LPM is not applied to transmit data；

16. transceiver according to claim 15, it is characterised in that the transceiver also includes the first notification module and the One receiving module, if being currently at full-power mode,

17. transceiver according to claim 15, it is characterised in that the control module, be additionally operable to when the FRLPM is small When the MRLPM, then into full-power mode, and using TS_FPM transmission data, the TS_FPM includes the corresponding line Available subcarrier of the road under full-power mode.

18. transceiver according to claim 15, it is characterised in that the transceiver, in addition to the second notification module and Second receiving module；If being currently at low-power mode,

Second notification module, for notifying VCE to be switched to full-power mode by low-power mode, make the VCE according to complete Matrix is offset in power mode t easet ofasubcarriers TS_FPM renewals, is obtained the second renewal and is offset matrix；

The control module, for receive it is described second renewal completion notice after, into full-power mode, and described in use TS_FPM transmits data, and the TS_FPM includes the corresponding line available subcarrier under full-power mode.

19. the transceiver according to claim 15 or 16, it is characterised in that the control module, for by the DTS- The data symbol of subcarrier in LPM sends signal-off, and synchronizing symbol sends signal and opened.

20. according to the transceiver described in claim 15 to 18 any claim, it is characterised in that the transceiver also wraps Include：

Judge module, the restricted information of the low-power mode subcarrier for judging whether to meet the renewal corresponding line touch Clockwork spring part；

Update module, the trigger condition for the restricted information when the low-power mode subcarrier for meeting to update the corresponding line When, the restricted information of the low-power mode subcarrier of the corresponding line is updated, and/or whether rejudge the corresponding line LPM or FPM should be entered.

21. transceiver according to claim 20, it is characterised in that the judge module, have new circuit for knowing Add, when original circuit leaves, the power rating on system neutral road changes or channel matrix has renewal, then judge to meet more The trigger condition of the restricted information of the low-power mode subcarrier of the new corresponding line.

22. transceiver according to claim 21, it is characterised in that the transceiver, in addition to：

Monitoring module, for monitoring business flow；

The control module, it is additionally operable to, when service traffics are more than low-power mode full rate FRLPM, by low-power mode be switched To full-power mode.

23. transceiver according to claim 21, it is characterised in that the acquisition module, for receiving the VCE or near The TS-LPM or DTS-LPM of the corresponding line of transceiver transmission information are held, and according to the TS-LPM or DTS- The restricted information of the low-power mode subcarrier of corresponding line described in LPM acquisition of information.

24. transceiver according to claim 21, it is characterised in that the acquisition module, for receiving near-end transceiver The TS-LPM or DTS-LPM of the corresponding line of the near-end transceiver suggestion sent information；According to the near-end The TS-LPM or DTS- of the TS-LPM of the corresponding line of transceiver suggestion either DTS-LPM information updating corresponding lines LPM, and obtain according to the TS-LPM or DTS-LPM of the corresponding line of renewal the low-power mode subcarrier of the corresponding line Restricted information.

25. a kind of vector quantization controlled entity, is applied in vectored system, the vectored system includes a plurality of circuit, every Include multiple subcarriers on circuit, it is characterised in that the vector quantization controlled entity includes：

Acquisition module, the restricted information of the low-power mode subcarrier for obtaining any circuit, low-power mode carry The low-power mode t easet ofasubcarriers TS-LPM of the restricted information of ripple including corresponding line information or corresponding line it is low Power mode closes t easet ofasubcarriers DTS-LPM information；

First sending module, for the restricted information of the low-power mode subcarrier of any circuit to be sent into corresponding receipts Device is sent out, makes the transceiver complete according to the restricted information of the low-power mode subcarrier of corresponding line calculating low-power mode Speed FRLPM；Compare the FRLPM and the low-power mode minimum speed limit MRLPM pre-set size；It is if described FRLPM is more than or equal to the MRLPM, then into low-power mode, and according to the low-power mode subcarrier of the corresponding line Restricted information subcarrier transmission data are selected from the TS-LPM of the corresponding line or do not apply subcarrier in DTS-LPM Transmit data；

Wherein, the TS-LPM includes the available subcarrier of the corresponding line at low power modes, in the DTS-LPM The subcarrier for needing to close at low power modes including the corresponding line, the low-power mode are in specified data symbols On can shutdown signal or send signal energy saver mode.

26. vector quantization controlled entity according to claim 25, it is characterised in that the acquisition module, including：

First acquisition unit, for for each subcarrier k, obtaining the channel matrix H of the subcarrier k_eq ^k, the H_eq ^kIt is one Individual M*M square formation, M are the circuit sum that has been added to and will add vectored system；

Second acquisition unit, for according to the H_eq ^kPre-coding matrix P is calculated^k, and obtain the pre-coding matrix P^kIn Submatrix P using d as index^k _dd；

Judging unit, it is described for judgingOff diagonal element inModulus value orModulus value whether be more than it is pre- Gating limit value；

Unit is added, for when describedOff diagonal element inModulus value orModulus value be more than it is described default During threshold value, the low-power mode that the subcarrier k is added to circuit i or circuit j closes t easet ofasubcarriers DTS_LPM；

Determining unit, for low-power mode using the DTS-LPM of any circuit information as any circuit The restricted information of carrier wave；Or the TS-LPM of any circuit is obtained according to the DTS_LPM of any circuit, and by institute State restricted information of the TS-LPM of any circuit information as the low-power mode subcarrier of any circuit.

27. vector quantization controlled entity according to claim 26, it is characterised in that the addition unit, for according to pre- The circuit i and circuit j that first set priority add the subcarrier k DTS_LPM of the circuit i or circuit j.

28. vector quantization controlled entity according to claim 25, it is characterised in that the vector quantization controlled entity, also wrap Include：

First update module, the information updating for the low-power mode subcarrier according to any circuit are offset matrix, obtained Matrix is offset to the first renewal；

Second sending module, for sending the first renewal completion notice to the transceiver, receive the transceiver described After first renewal completion notice, into low-power mode.

29. vector quantization controlled entity according to claim 25, it is characterised in that the vector quantization controlled entity, also wrap Include：

Second update module, square is offset for being updated according to the full-power mode t easet ofasubcarriers TS-FPM of any circuit Battle array, obtain the second renewal and offset matrix；

3rd sending module, for sending the second renewal completion notice to the transceiver, receive the transceiver described After second renewal completion notice, into full-power mode, the full-power mode is necessary on the data symbol specified Send the power mode of signal.

30. a kind of power control system, it is characterised in that the system includes：Transceiver and vector quantization controlled entity；

Wherein, transceiver of the transceiver as described in any claim in the claim 15 to 18；

Vector quantization controlled entity of the vector quantization controlled entity as described in any claim in the claim 25 to 29.