CN101132192B - Method, device and system for implementing xDSL multi-module platform mode selection - Google Patents
Method, device and system for implementing xDSL multi-module platform mode selection Download PDFInfo
- Publication number
- CN101132192B CN101132192B CN2006101112847A CN200610111284A CN101132192B CN 101132192 B CN101132192 B CN 101132192B CN 2006101112847 A CN2006101112847 A CN 2006101112847A CN 200610111284 A CN200610111284 A CN 200610111284A CN 101132192 B CN101132192 B CN 101132192B
- Authority
- CN
- China
- Prior art keywords
- pattern
- xdsl transceiver
- mode
- family
- local side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
This invention relates to the digital subscriber line (xDSL) transmission technique, particularly discloses a method for realization of xDSL multimode platform mode selection. The characteristics are the following steps: based on the mode-clan supported by the xDSL transceivers of the local side and subscriber side, selecting the activable mode-clan supported by both transceivers; (B), based on the preset optimization tactics, selecting one mode from the activable mode-clan; (C), proceeding deactivation of the xDSL transceivers of local side and subscriber side, and working under the mode selected in step B. This invention also discloses a system used for realizing xDSL multi-mode platform selection, and multi-mode local side xDSL transceiver, and realizing optimization working mode.
Description
Technical field
The present invention relates to Digital Subscriber Line (Digital Subscriber Line, xDSL) transmission technique field, implementation method, the Apparatus and system of the model selection of particularly a kind of xDSL multi-mode platform.
Background technology
The DSL technology is a kind of twisted pair telephone that passes through, be unshielded twisted pair (Unshielded Twist Pair, UTP) carry out the high speed transmission technology of transfer of data, comprise ADSL (Asymmetric Digital Subscriber Line) (Asymmetrical Digital Subscriber Line, ADSL), Very-high-speed Digital Subscriber Line (Very-high-bit-rate Digital Subscriber Line, VDSL), based on integrated services digital network (Integrated Services Digital Network, ISDN) number of users word line (ISDN Digital Subscriber Line, IDSL) and single-line high speed digital subscriber line (Single-pair High-bit-rate Digital Subscriber Line, SHDSL) etc.; Each DSL technology also has multiple subtype, and for example ASDL also comprises second generation ASDL (ASDL2), the ASDL2 (ASDL2+) of downlink bandwidth expansion etc.
In various digital user line technologies (xDSL), except the DSL of baseband transmission such as IDSL and SHDSL, adopt the DSL of passband transmission to utilize frequency multiplexing technique to make DSL and Plain Old Telephone Service (Plain Old Telephone Service, POTS) coexist as with on a pair of twisted-pair feeder, wherein DSL occupies high band, POTS takies the following baseband portion of 4KHz, POTS signal and DSL signal by separate/integrator (Splitter) separates or merges.The xDSL of passband transmission adopts the Discrete multi-tone modulation, and (Discrete Multi-Tone Modulation, DMT) technology is carried out modulation and demodulation.The system that provides multichannel DSL to insert is called the DSL couple in multiplexer, and (DSL Access Multiplexer, DSLAM), its system's annexation schematic diagram as shown in Figure 1.User side xDSL transceiver 120, comprise user side Transmit-Receive Unit 121 and separate/integrator 122, at up direction, user side Transmit-Receive Unit 121 receives and carries out processing and amplifying from the signal of computer 110 and to the signal of being received, the signal after handling is sent to separation/integrator 122; Separation/integrator 122 will be integrated from the signal of user side Transmit-Receive Unit 121 and the POTS signal of telephone terminal 130; Signal after the integration is received by the separation/integrator in the local side xDSL transceiver 150 151 by the transmission of subscribers feeder 140; Separation/integrator 151 separates the signal that is received, POTS signal wherein is sent to public switched telephone network (Public Switched Telephone Network, PSTN) 160, DSL signal wherein is sent to the local side Transmit-Receive Unit 152 of local side xDSL transceiver 150, local side Transmit-Receive Unit 152 carries out the signal of being received to be sent to switch after the processing and amplifying again, (Network Management System, NMS) 170 pairs of local side Transmit-Receive Units 152 carry out service management to network management system.At the down direction of signal, then signal is according to transmitting with above-mentioned opposite order.
Current xDSL has formed a standard bunch, comprise the various technical standards that different access rates, coverage and target application are provided, and in same standard, also have the appendix (annexes) that is provided with at zones of different application requirements or spectrum requirement, as shown in table 1.
Table 1
Because the fast development of xDSL technology, at present and in the near future, the situation that multiple xDSL modes coexist can occur, therefore local side and user's transceiver all must be supported multiple xDSL pattern, and from the common pattern of supporting of both sides, select a pattern to activate as mode of operation, therefore from multiple xDSL pattern, select optimization model to be called the problem of urgent solution.
In the present existing xDSL model selection scheme, select wherein a kind of often under the situation of two kinds of xDSL modes coexist.For example, G.dmt and G.lite coexistence, because the bandwidth of G.lite is completely contained in the bandwidth of G.dmt, therefore, G.dmt is the preferential pattern of selecting; ADSL and ADSL2 coexistence, though both use common bandwidth, ADSL2 is being better than ADSL aspect speed, robustness, diagnosis or the energy conservation characteristic, therefore, ADSL2 is the preferential pattern of selecting; ADSL2+ and ADSL2 coexistence it is generally acknowledged that ADSL2+ is better than ADSL2 performance when short distance, because it has used high bandwidth, ADSL2+ and ADSL2 are long close apart from performance, and therefore, ADSL2+ is the preferential pattern of selecting.
More than cited existing model selection, mainly be to select among two kinds of patterns, situation is fairly simple, so with some simple judge just can provide final solution.But if enable two or more pattern the time, a kind of comparatively general situation is that a pair of transceiver is supported a pattern family simultaneously, and for example: the enable mode of xDSL over POTS transceiver comprises following pattern:
G.993.2 annex A (descending non-overlapping frequency spectrum)
G.992.5 annex A (descending non-overlapping frequency spectrum)
G.992.3 annex A (descending non-overlapping frequency spectrum)
G.992.3 annex L (wide up non-overlapping frequency spectrum)
In this case, only rely on simple judgement and just can't determine best enable mode.
Summary of the invention
In view of this, the objective of the invention is to, propose the implementation method of a kind of xDSL multi-mode platform model selection, can make under the multi-mode platform xDSL transceiver select optimization model automatically.This method comprises the steps:
A, according to the pattern family of local side and each self-supporting of user side xDSL transceiver, pick out the common pattern family that activates that supports of local side and user side xDSL transceiver, specifically comprise: judge Route Length between local side and the user side xDSL transceiver, according to the result who judges, the available pattern of screening in the common pattern family that supports of both sides; And the up-downgoing signal to noise ratio snr of measuring described circuit, and estimate attainable up-downgoing activation rate according to measured up-downgoing SNR, whether the up-downgoing activation rate that judgement is estimated and the noise margin of SNR correspondence satisfy the requirement of the activation configuration that sets in advance, if then the pattern of this activation configuration correspondence is for activating;
The optimization strategy that B, basis set in advance is selected a pattern from the pattern family that can activate;
C, local side and the deexcitation of user side xDSL transceiver, with the selected pattern of step B as mode of operation.
The common pattern family that supports of described definite local side of steps A and user side xDSL transceiver comprises:
A1, user side xDSL transceiver send the mode of operation list request message CLR that comprises self support mode to local side xDSL transceiver;
The pattern that pattern in the CLR message that A2, local side xDSL transceiver are received and self are supported is got common factor, obtain local side and user side xDSL transceiver common support more than one pattern.
Route Length is between described judgement local side and the user side xDSL transceiver:
Transmit the attenuation of picked up signal by information, the signal attenuation that sets in advance and the contrast relationship table of line length are searched in signal attenuation according to gained, obtain line length.
Described in the common pattern family that supports of both sides the available pattern of screening be: length range is divided into a plurality of intervals, and each length of interval is provided with inapplicable pattern respectively; Judge which length of interval is measured line length belong to, in the pattern family of determined common support, remove inapplicable pattern of described length of interval correspondence.
Described activation configuration comprises minimum and maximum up-downgoing activation rate, target up-downgoing noise margin;
The described requirement of satisfying the activation configuration that sets in advance is: between the minimum up-downgoing activation rate and maximum up-downgoing activation rate of the up-downgoing activation rate of being estimated in activating configuration, the up-downgoing noise margin of being estimated is more than or equal to target up-downgoing noise margin.
Preferably, described optimization strategy comprises at least: the pattern of selecting to realize in all patterns that can activate maximum downstream rate.
Perhaps, described optimization strategy comprises at least: select in all patterns that can activate, realize the pattern of upstream rate and downstream rate sum maximum.
Step B comprises: local side xDSL transceiver is selected a pattern according to the optimization strategy that sets in advance from the pattern family that can activate, and with selected pattern notice user side xDSL transceiver.
Step C is described to be comprised the selected pattern of step B as mode of operation:
C1, local side or user side xDSL transceiver join mode of operation with the determined pattern of step B and select in the model selection information field of message MS, and send MS to opposite end xDSL transceiver;
C2, opposite end xDSL transceiver as the final mode of operation that activates, and return the pattern in the model selection information field of MS to first kind response message ACK (1).
This method further comprises: network management system is created and is activated configuration and optimization strategy configuration, and issues described activation configuration and optimization strategy configuration to local side xDSL transceiver.
Another object of the present invention is to, propose a kind of multimode local side xDSL transceiver, can select optimized mode of operation automatically.
Described multimode local side xDSL transceiver comprises:
The pattern information receiver module is used to receive the pattern family information from the support of user side xDSL transceiver, and the pattern family information of the support that received is sent to mode selection module;
Mode selection module, be used for the pattern family of the user side xDSL transceiver support that received according to the pattern information receiver module and the pattern family of multimode local side xDSL transceiver support and determine the common pattern family that supports of both sides, and from the pattern family of described common support, select a pattern as mode of operation according to the optimization strategy configuration;
Described mode selection module comprises:
The Preliminary screening module is used to measure the line length between multimode local side xDSL transceiver and the user side xDSL transceiver, but and from described enable mode family, remove disabled pattern according to measured result;
Local side signal to noise ratio snr measuring unit is used to receive the measured descending SNR of user side xDSL transceiver and measures up SNR, according to the uplink and downlink activation rate and the uplink and downlink noise margin of described uplink and downlink SNR estimation of line;
Strategy is realized being used for according to SNR measuring unit gained uplink and downlink activation rate and uplink and downlink noise margin the unit, but picks out the unique pattern that meets the optimization strategy configuration from described enable mode family.
Described multimode local side xDSL transceiver further comprises the deexcitation module, is used to make user side xDSL transceiver and the deexcitation of multimode local side xDSL transceiver;
But described mode selection module is further used for picking out enable mode family according to activating configuration from the pattern family of described common support.
The present invention also aims to, propose the system of a kind of xDSL multi-mode platform model selection, can make under the multi-mode platform xDSL transceiver select optimization model automatically.This system comprises multimode local side xDSL transceiver, user side xDSL transceiver and is used for issuing transmitting apparatus under activation configuration and the optimization strategy configured strategy to multimode local side xDSL transceiver;
Described multimode local side xDSL transceiver comprises:
The pattern information receiver module is used to receive the pattern family information from the support of user side xDSL transceiver, and the pattern family information of the support that received is sent to mode selection module;
Mode selection module, be used for the pattern family of the user side xDSL transceiver support that received according to the pattern information receiver module and the pattern family of multimode local side xDSL transceiver support and determine the common pattern family that supports of both sides, but further pick out enable mode family according to activating configuration, but and according to optimization strategy configuration from enable mode family, select a pattern as mode of operation;
The deexcitation module is used to make user side xDSL transceiver and the deexcitation of multimode local side xDSL transceiver;
Described mode selection module comprises:
The Preliminary screening module is used to measure the line length between multimode local side xDSL transceiver and the user side xDSL transceiver, but and from described enable mode family, remove disabled pattern according to measured result;
Local side SNR measuring unit is used to receive the measured descending SNR of user side SNR measuring unit and measures up SNR, according to the uplink and downlink activation rate and the uplink and downlink noise margin of described uplink and downlink SNR estimation of line;
Strategy is realized being used for according to SNR measuring unit gained uplink and downlink activation rate and uplink and downlink noise margin the unit, but picks out the unique pattern that meets the optimization strategy configuration from described enable mode family;
Described user side xDSL transceiver further comprises user side SNR measuring unit, is used to measure descending SNR and measured SNR is sent to local side SNR measuring unit.
Described policy distribution device further comprises the configuration creation module, is used for creating activating disposing and the optimization strategy configuration.
Described policy distribution device is a network management system.
As can be seen from the above technical solutions, by the initialization procedure first time, local side xDSL transceiver obtains relevant technical parameter with user side xDSL transceiver, as up-downgoing SNR, up-downgoing activation rate, from the common pattern family that supports in two ends, select optimized mode of operation according to optimization strategy; Initiatively deexcitation and enter initialization procedure for the second time activates selected optimization model as mode of operation then.Like this, support several modes no matter two ends are simultaneously common, as long as by twice initialization procedure, automatic selection that just can implementation pattern, and guarantee that selected pattern must be optimum.
Description of drawings
Fig. 1 is an xDSL system configuration schematic diagram;
Fig. 2 is the structural representation of system of the present invention;
Fig. 3 is the flow chart of the inventive method.
Embodiment
Model selection process of the present invention is that the initial phase at the xDSL transceiver carries out.For convenience of explanation, at first initial phase is briefly introduced.
Under condition, for the transceiver at circuit two ends can be talked with, must define an identical carrier frequency, when transceiver is operated in this carrier frequency simultaneously, just have the material base of the dialogue of realizing without any priori.On this basis, the xDSL transceiver from start to operate as normal need through shaking hands (Handshake), channel finds (Channel Discovery), training (Training), Multiple Channel Analysis and exchange processes such as (Channel Analysis and Exchange), more than be referred to as initial phase, just can enter normal operating conditions then.Wherein handshake procedure is mainly finished the discovery of transceiver, mode of operation function such as determine; The detection of the characteristic of channel, the detection of noise, the functions such as running parameter of exchange correlation are mainly finished in the channel discovery procedure; The main function of training process is to finish the training of Adaptable Systems such as time-domain equalizer and echo canceller; Multiple Channel Analysis and exchange are mainly finished determining of some circuit bearing capacitys and these parameters of determining are exchanged mutually.More than each process all be that (International Telecommunication Union, ITU) standard agreement of appointment is carried out corresponding operating according to International Telecommunications Union.
For convenience of description, the DSL transceiver that works in the Handshake Protocol state and be positioned at user side is called HSTU-R, the DSL transceiver that works in the Handshake Protocol state and be positioned at local side is called HSTU-C.
Core content of the present invention is:
At first, according to the pattern family of local side and each self-supporting of user side xDSL transceiver, pick out the common pattern family that activates that supports of local side and user side xDSL transceiver;
Then, according to the optimization strategy that sets in advance, from the pattern family that can activate, select a pattern as optimized mode of operation; More than two the step in the initialized first process of the transceiver at two ends, carry out usually;
At last, selected optimization work pattern is enabled in local side and the deexcitation of user side xDSL transceiver, carries out the initialization procedure second time.
The inventive method can realize on the existing DSL network architecture as shown in Figure 1 that system configuration of the present invention mainly comprises and measures transmitting apparatus 2000 down, multimode local side xDSL transceiver 2100 and user side xDSL transceiver 2200 as shown in Figure 2.
Corresponding to each pattern corresponding activation configuration is arranged respectively, described activation configuration is made up of a cover technical parameter, comprises minimum and maximum up-downgoing activation rate, target noise margin; When measured up-downgoing activation rate and noise margin more than or equal to target up-downgoing activation rate and target noise margin in the activation strategy, then the corresponding pattern of this activation configuration is for activating; Optimization strategy is one group of constraints to technical parameter, is used to pick out the pattern that satisfies this constraints;
Multimode local side xDSl transceiver 2100 comprises:
Mode selection module 2110, the pattern family that pattern family that the user side xDSL transceiver 2200 that is used for being received according to pattern information receiver module 2120 is supported and multimode local side xDSL transceiver 2100 are supported determines the common pattern family that supports of both sides; But further from the common pattern family that supports of both sides, pick out enable mode family according to activating configuration, but and according to optimization strategy configuration from enable mode family, select a pattern as mode of operation.Mode selection module 2110 also further comprises:
Local side SNR measuring unit 2112 is used to receive the measured descending SNR of user side SNR measuring unit 2210 and measures up SNR, according to the uplink and downlink activation rate and the uplink and downlink noise margin of described uplink and downlink SNR estimation of line;
Strategy is realized being used for according to SNR measuring unit 3112 gained uplink and downlink activation rates and uplink and downlink noise margin unit 2113, but picks out the unique pattern that meets the optimization strategy configuration from described enable mode family.
Pattern information receiver module 2120 is used to receive the pattern family information from the support of user side xDSL transceiver 2200, and the pattern family information of the support that received is sent to mode selection module 2110;
User side xDSL transceiver 2200 comprises user side SNR measuring unit 2210, is used to measure descending SNR and measured SNR is sent to local side SNR measuring unit 2112.
The realization flow of the inventive method comprises the steps: as shown in Figure 3
Step 301: in initialized handshake phase, the transceiver two ends are mutual by mode of operation list request message (CLR) and mode of operation tabulation (CL), the pattern that intercommunication is supported, and detailed process comprises:
Step 301a:HSTU-R sends its capabilities list in CLR message, i.e. the mode of operation that statement is supported oneself.
The CLR message that step 301b:HSTU-C receives is extracted the mode of operation that HSTU-R supports, and gets common factor with the mode of operation of self supporting, obtains the common mode of operation of supporting of both sides; And, state the pattern that self supports therein to HSTU-R transmission CL message.
Step 302:HSTU-C estimates line length, and according to the result who estimates, in the pattern that both sides all support, screens available pattern.Judge that mode that line length adopted can be: the signalization decay contrast relationship table with line length, transmit the attenuation of picked up signal by information, and then by searching the substantial distance that described contrast relationship table can estimate circuit.
Because the common pattern of supporting of local side and user side is more, it is such and only to enable a kind of pattern, and CLR and CL have just determined that enable mode get off alternately.In order to simplify the quantity of enable mode, need prejudge out Route Length at initial phase, and remove inapplicable pattern according to the length of being judged.Promptly set in advance at least one length separation, according to set length separation length range is divided into a plurality of intervals, and each length of interval is provided with inapplicable pattern respectively; Judge which length of interval is measured line length belong to, and in the pattern of determined common support, remove inapplicable pattern of described length of interval correspondence.For example, with 2.5 kilometers be the line of demarcation, if be higher than 2.5 kilometers, VDSL2 is not just at the row of consideration; If be lower than in 2.5 kilometers, the annex L of ADSL2 is not just at the row of consideration.Also can set more than one length separation in the practical application, concrete numerical value also can be determined according to actual needs.。
Step 303: the SNR of measurement circuitry, and estimate attainable up-downgoing speed according to measurement result.In the channel switch stage, the estimated data at exchange two ends, promptly HSTU-C end notice HSTU-R obtains up activation rate, and HSTU-R notice HSTU-C obtains descending activation rate.
Step 304:HSTU-C at first can select the pattern of an optimum according to activating selection of configuration according to gained up-downgoing activation rate and SNR.
Described activation configuration and optimization strategy configuration are created by network management system; Be issued to xTU-C by network management system, and after once issuing, described policy store in xTU-C, all used this strategy later on, issue new strategy once more up to network management system.
Corresponding to each pattern corresponding activation configuration is arranged respectively, when the pairing noise margin of up-downgoing activation rate, SNR that is estimated satisfied requiring of activation configuration, the pairing pattern of this activation configuration was and can activates.Specifically, described activation configuration is made up of a cover technical parameter, comprises minimum and maximum up-downgoing activation rate, target noise margin etc.; Target noise margin in the noise margin of measured up-downgoing activation rate and SNR correspondence disposes more than or equal to activation, activation rate are between the minimum and maximum activation rate that activates configuration requirement, and then the pattern of this activation configuration correspondence is for activating.
Optimization strategy is one group of constraints to technical parameter, is used to pick out the pattern that satisfies this constraints.Be the example of two optimization strategies below:
Optimization strategy a: in all patterns, realize maximum downstream rate;
Optimization strategy b: in all patterns, realize speed and maximum, the summation of speed here and expression uplink and downlink speed.
According to above any one optimization strategy, from the pattern that can activate, select the pattern of a pattern as optimum.
The judgement main body of optimization strategy is local side HSTU-C.The optimization model that initialization is for the first time decided will pass to far-end by local side, so that shake hands when mutual for the second time activating, no matter when local side still be that far-end is when providing MS, the other end all can provide ACK (1) in response, thereby the optimization model that will determine for the first time is as final enable mode.
Initiatively deexcitation of step 305:HSTU-C reenters initialization procedure for the second time again.Below be two specific embodiments of reciprocal process of shaking hands in the initialization for the second time.
Embodiment one: HSTU-R is because the known preferred pattern, therefore, when it sends MS message, optimum enable mode put into the model selection information field of MS, makes the local side transceiver confirm, selected optimization model be final activation mode of operation.The interaction flow that activates for the second time handshake phase can adopt Signalling exchange flow process as shown in table 2:
Signalling exchange flow process as shown in table 2:
| Process identification | HSTU-R? | HSTU-C? | HSTU-R? | HSTU-R? | HSTU-C? |
| C:A? | CLR→? | CL?→? | ACK(1)? | MS→? | ACK(1)? |
Table 2
Be summarized as follows:
Step 305a:HSTU-R sends mode of operation list request message (CLR)
Step 305b:HSTU-C returns mode of operation tabulation (CL);
Step 305c:HSTU-R sends ACK (1) as replying after receiving CL;
Step 305d:HSTU-R sends mode of operation and selects message (MS);
Step 305f:HSTU-C accepts described optimization model as mode of operation, and returns ACK (1).
Embodiment two: HSTU-C is because the known preferred pattern, therefore, when it sends MS message, optimum enable mode put into the model selection information field of MS, makes remote transceiver confirm, selected optimization model be final activation mode of operation.The interaction flow that activates for the second time handshake phase can adopt Signalling exchange flow process as shown in table 3:
| Process identification | HSTU-R? | HSTU-C? | HSTU-R? | HSTU-R? | HSTU-C? | HSTU-R? | HSTU-C? | HSTU-R? |
| C:A:B? | CLR→? | CL→? | ACK(1)? | MS→? | REQ-MR →? | MR→? | MS→? | ACK(1)? |
[0107] Table 3
Be summarized as follows:
Step 305a ': HSTU-R sends mode of operation list request message (CLR)
Step 305b ': HSTU-C returns mode of operation tabulation (CL);
Step 305c ': HSTU-R sends ACK (1) as replying after receiving CL;
Step 305d ': HSTU-R sends mode of operation and selects message (MS);
Step 305e ': HSTU-C returns REQ-MR;
Step 305f ': HSTU-R sends mode of operation request message (MR);
Step 305g ': HSTU-C adds determined optimization model in the model selection information field of MS, and sends this MS to HSTU-R;
Step 305h ': HSTU-R accepts described optimization model as mode of operation, and returns ACK (1).
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. the implementation method of Digital Subscriber Line xDSL multi-mode platform model selection is characterized in that this method comprises the steps:
A, according to the pattern family of local side and each self-supporting of user side xDSL transceiver, pick out the common pattern family that activates that supports of local side and user side xDSL transceiver, specifically comprise: judge Route Length between local side and the user side xDSL transceiver, according to the result who judges, the available pattern of screening in the common pattern family that supports of both sides; And the up-downgoing signal to noise ratio snr of measuring described circuit, and estimate attainable up-downgoing activation rate according to measured up-downgoing SNR, whether the up-downgoing activation rate that judgement is estimated and the noise margin of SNR correspondence satisfy the requirement of the activation configuration that sets in advance, if then the pattern of this activation configuration correspondence is for activating;
The optimization strategy that B, basis set in advance is selected a pattern from the pattern family that can activate;
C, local side and the deexcitation of user side xDSL transceiver, with the selected pattern of step B as mode of operation.
2. method according to claim 1 is characterized in that, the common pattern family that supports of described definite local side of steps A and user side xDSL transceiver comprises:
A1, user side xDSL transceiver send the mode of operation list request message CLR that comprises self support mode to local side xDSL transceiver;
The pattern that pattern in the CLR message that A2, local side xDSL transceiver are received and self are supported is got common factor, obtain local side and user side xDSL transceiver common support more than one pattern.
3. method according to claim 1 is characterized in that, Route Length is between described judgement local side and the user side xDSL transceiver:
Transmit the attenuation of picked up signal by information, the signal attenuation that sets in advance and the contrast relationship table of line length are searched in signal attenuation according to gained, obtain line length.
4. method according to claim 1 is characterized in that, described in the common pattern family that supports of both sides the available pattern of screening be: length range is divided into a plurality of intervals, and each length of interval is provided with inapplicable pattern respectively; Judge which length of interval is measured line length belong to, in the pattern family of determined common support, remove inapplicable pattern of described length of interval correspondence.
5. method according to claim 1 is characterized in that, described activation configuration comprises minimum and maximum up-downgoing activation rate, target up-downgoing noise margin;
The described requirement of satisfying the activation configuration that sets in advance is: between the minimum up-downgoing activation rate and maximum up-downgoing activation rate of the up-downgoing activation rate of being estimated in activating configuration, the up-downgoing noise margin of being estimated is more than or equal to target up-downgoing noise margin.
6. method according to claim 5 is characterized in that, described optimization strategy comprises at least: the pattern of selecting to realize in all patterns that can activate maximum downstream rate.
7. method according to claim 5 is characterized in that, described optimization strategy comprises at least: select in all patterns that can activate, realize the pattern of upstream rate and downstream rate sum maximum.
8. method according to claim 1 is characterized in that step B comprises: local side xDSL transceiver is selected a pattern according to the optimization strategy that sets in advance from the pattern family that can activate, and with selected pattern notice user side xDSL transceiver.
9. method according to claim 1 is characterized in that, step C is described to be comprised the selected pattern of step B as mode of operation:
C1, local side or user side xDSL transceiver join mode of operation with the determined pattern of step B and select in the model selection information field of message MS, and send MS to opposite end xDSL transceiver;
C2, opposite end xDSL transceiver as the final mode of operation that activates, and return the pattern in the model selection information field of MS to first kind response message ACK (1).
10. according to each described method of claim 1 to 9, it is characterized in that this method further comprises: network management system is created and is activated configuration and optimization strategy configuration, and issues described activation configuration and optimization strategy configuration to local side xDSL transceiver.
11. a multimode local side xDSL transceiver is characterized in that, described multimode local side xDSL transceiver comprises:
The pattern information receiver module is used to receive the pattern family information from the support of user side xDSL transceiver, and the pattern family information of the support that received is sent to mode selection module;
Mode selection module, be used for the pattern family of the user side xDSL transceiver support that received according to the pattern information receiver module and the pattern family of multimode local side xDSL transceiver support and determine the common pattern family that supports of both sides, and from the pattern family of described common support, select a pattern as mode of operation according to the optimization strategy configuration;
Described mode selection module comprises:
The Preliminary screening module is used to measure the line length between multimode local side xDSL transceiver and the user side xDSL transceiver, but and from described enable mode family, remove disabled pattern according to measured result;
Local side signal to noise ratio snr measuring unit is used to receive the measured descending SNR of user side xDSL transceiver and measures up SNR, according to the uplink and downlink activation rate and the uplink and downlink noise margin of described uplink and downlink SNR estimation of line;
Strategy is realized being used for according to SNR measuring unit gained uplink and downlink activation rate and uplink and downlink noise margin the unit, but picks out the unique pattern that meets the optimization strategy configuration from described enable mode family.
12. multimode local side xDSL transceiver according to claim 11 is characterized in that, described multimode local side xDSL transceiver further comprises the deexcitation module, is used to make user side xDSL transceiver and the deexcitation of multimode local side xDSL transceiver;
But described mode selection module is further used for picking out enable mode family according to activating configuration from the pattern family of described common support.
13. a system that realizes the model selection of xDSL multi-mode platform comprises multimode local side xDSL transceiver and user side xDSL transceiver, it is characterized in that this system also comprises:
Be used for issuing transmitting apparatus under activation configuration and the optimization strategy configured strategy to multimode local side xDSL transceiver;
Described multimode local side xDSL transceiver comprises:
The pattern information receiver module is used to receive the pattern family information from the support of user side xDSL transceiver, and the pattern family information of the support that received is sent to mode selection module;
Mode selection module, be used for the pattern family of the user side xDSL transceiver support that received according to the pattern information receiver module and the pattern family of multimode local side xDSL transceiver support and determine the common pattern family that supports of both sides, but further pick out enable mode family according to activating configuration, but and according to optimization strategy configuration from enable mode family, select a pattern as mode of operation;
The deexcitation module is used to make user side xDSL transceiver and the deexcitation of multimode local side xDSL transceiver;
Described mode selection module comprises:
The Preliminary screening module is used to measure the line length between multimode local side xDSL transceiver and the user side xDSL transceiver, but and from described enable mode family, remove disabled pattern according to measured result;
Local side SNR measuring unit is used to receive the measured descending SNR of user side SNR measuring unit and measures up SNR, according to the uplink and downlink activation rate and the uplink and downlink noise margin of described uplink and downlink SNR estimation of line;
Strategy is realized being used for according to SNR measuring unit gained uplink and downlink activation rate and uplink and downlink noise margin the unit, but picks out the unique pattern that meets the optimization strategy configuration from described enable mode family;
Described user side xDSL transceiver further comprises user side SNR measuring unit, is used to measure descending SNR and measured SNR is sent to local side SNR measuring unit.
14. system according to claim 13 is characterized in that, described policy distribution device further comprises:
The configuration creation module is used for creating activating and disposes and the optimization strategy configuration.
15., it is characterized in that described policy distribution device is a network management system according to claim 13 or 14 described systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101112847A CN101132192B (en) | 2006-08-21 | 2006-08-21 | Method, device and system for implementing xDSL multi-module platform mode selection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101112847A CN101132192B (en) | 2006-08-21 | 2006-08-21 | Method, device and system for implementing xDSL multi-module platform mode selection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101132192A CN101132192A (en) | 2008-02-27 |
| CN101132192B true CN101132192B (en) | 2010-12-15 |
Family
ID=39129335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101112847A Expired - Fee Related CN101132192B (en) | 2006-08-21 | 2006-08-21 | Method, device and system for implementing xDSL multi-module platform mode selection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101132192B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2936694B1 (en) * | 2012-12-21 | 2017-07-19 | Telefonaktiebolaget LM Ericsson (publ) | Mitigation of disconnect events in vectoring based dsl systems |
| CN107517144A (en) * | 2016-06-16 | 2017-12-26 | 中兴通讯股份有限公司 | The processing method and processing device of data transfer, data transmission system |
| CN110493478B (en) * | 2019-08-02 | 2021-02-09 | 深圳市普威技术有限公司 | Adaptive transmission mode xDSL equipment and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359224A (en) * | 2000-11-15 | 2002-07-17 | 朗迅科技公司 | Circuit card and method for supporting tranditional telephone business, asymmetric digital user circuit, symmetric digital user circuit service |
| CN1507166A (en) * | 1998-04-01 | 2004-06-23 | ���ܿ���ϵͳ����˾ | Starting of multi-xDSL modulator-demodulator with hidden channel probe |
-
2006
- 2006-08-21 CN CN2006101112847A patent/CN101132192B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507166A (en) * | 1998-04-01 | 2004-06-23 | ���ܿ���ϵͳ����˾ | Starting of multi-xDSL modulator-demodulator with hidden channel probe |
| CN1359224A (en) * | 2000-11-15 | 2002-07-17 | 朗迅科技公司 | Circuit card and method for supporting tranditional telephone business, asymmetric digital user circuit, symmetric digital user circuit service |
Non-Patent Citations (1)
| Title |
|---|
| TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU.Handshake procedures for digital subscriber line (DSL) transceivers.ITU-T G.994.1.2003,128-131. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101132192A (en) | 2008-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11677438B2 (en) | Training optimization of multiple lines in a vectored system using a prepared-to-join group | |
| US7272215B2 (en) | Automatic rapid switching between DSL service and POTS over loaded loops | |
| KR100514057B1 (en) | Apparatus and method for performing full duplex communication using different frequencies | |
| US6522730B1 (en) | DSL communication system with improved bandwidth | |
| US7564797B2 (en) | Method and system for conveying multiple calls on a single telephone line | |
| CN101459498A (en) | Detection method, apparatus and system for dispenser | |
| CN101132192B (en) | Method, device and system for implementing xDSL multi-module platform mode selection | |
| CN1855917B (en) | Method for realizing automatic choosing running mode in xDSL network | |
| CN101997796B (en) | Method, device and system for eliminating aliasing noise in multi-carrier-wave modulating system | |
| WO2009012358A1 (en) | System and method for making far end measurements for dsl diagnostics | |
| CN100557995C (en) | The fast diagnosis method of digital user wire transceiver interoperability problem and device | |
| US7843858B2 (en) | Crosstalk masking for digital subscriber loops | |
| CN102100048A (en) | Method and device for data processing and communication system comprising such device | |
| CN1996773A (en) | Method, device and communication system for avoidance of the near-end false activation of the digital user line | |
| JACOBSEN | Last Mile Copper Access | |
| EP2582110A1 (en) | Method for selecting an XDSL transmission mode and residential gateway using the method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20170821 |