CN102349260B - Channel expansion method, method and system - Google Patents
Channel expansion method, method and system Download PDFInfo
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- CN102349260B CN102349260B CN201180001556.7A CN201180001556A CN102349260B CN 102349260 B CN102349260 B CN 102349260B CN 201180001556 A CN201180001556 A CN 201180001556A CN 102349260 B CN102349260 B CN 102349260B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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Abstract
The invention discloses a channel expansion method of a multi-wire pair system, including configuring a switch module to receive a channel expansion module switch instruction; judging whether a target channel expansion module satifies the system specification based on the channel expansion module switch instruction and applicable to a channel expansion scheme aggregation under a limiting condition, if yes, an instruction wire configuring module adjusts the generation modes of the common channel and the expansion channel in the system according to the target channel expansion scheme. The invention also discloses an channel expansion device of the multi-wire pair system and the multi-wire pair system. By employment of the scheme provided by the embodiment of the invention, the channel expansion scheme is rapidly switched once receiving the specific business mode switch demand.
Description
Technical field
The present invention relates to data communication field, specifically, relate to a kind of channel expansion methods, devices and systems.
Background technology
XDSL is a kind of in twisted pair telephone (unshielded twisted pair, Unshielded Twist Pair, UTP) Highspeed Data Transmission Technology of transmission, except the DSL of the baseband transmission such as IDSL and SHDSL, the xDSL of passband transmission utilizes frequency multiplexing technique that xDSL and Plain Old Telephone Service (POTS) are coexisted in on a pair of twisted-pair feeder, wherein xDSL occupies high subcarrier, and POTS takies the following baseband portion of 4KHz, and POTS signal separates by separator with xDSL signal.The xDSL of passband transmission adopts Discrete multi-tone modulation (DMT).Provide the system of multichannel xDSL access to be called DSL couple in multiplexer (DSLAM), its system reference figure as shown in Figure 1.
For improve transmission rate adopt traditional DSL technology in conjunction with binding technology (Bonding) can will many one of twisted-pair feeders composition is multi-thread that system is realized to common receiving and transmitting signal, binding in theory the multi-thread of N bar twisted-pair feeder is that single line is to the N of DSL times to power system capacity.Two lines are to registering one's residence in actual applications, enterprise customer, and wireless base station passbacks etc. are multi-thread comparatively general to scene.
For further improving the copper cash level of resources utilization, give full play to the multi-thread bandwidth potential to application scenarios, the channel expansion technology such as industry has proposed again SuperMIMO, Phantom DSL.On this class channel expansion technological essence, be all existing N line to DSL line tower foundation on, additionally produce N-1 extended channel.These extended channels can carry the bandwidth identical with existing normal channel in theory.Therefore, multi-thread (2N-1)/N times of system speed can be promoted to traditional binding system to system of extended channel, in the time that N is very large, its total speed approaches original 2 times especially.
Traditional DSL channel adopts DM (Differential Mode, difference) mode to carry out signal transmission.Channel expansion on this basis is generally divided into CM (Common Mode, common mode) mode or AM (Alternative Mode substitutes) mode:
Pattern 1:CM mode realizes channel expansion, utilizes two separate common-mode signal carrying differential mode information of the first channel and second channel, forms a new differential mode channel based on two common-mode signals; As shown in Figure 2;
Pattern 2:AM mode realizes channel expansion, utilizes two separate difference mode signal carrying differential mode information of the first channel and second channel, forms a new AM channel based on two difference mode signals; As shown in Figure 3.
As above two kind of 2 conventional channel expands to the mode of 3 channels (referred to as 2 expansions 3, lower with), and its extended channel is all to set up based on two DM channels.More massive channel expansion scheme is slightly aobvious complicated, and the first is because extended channel also can be used as the basis of higher one-level extended channel, and it two is that CM and AM mode can independently build large-scale scheme, also can combine common realization.
Above-described is the multi-thread basic condition to technology and relevant DSL technology thereof of extended channel.But, the multi-thread problem that also exists some to solve to the practical application of technology of extended channel.
Summary of the invention
Given this, the invention provides a kind of multi-thread channel expansion method, device and a kind of multi-thread to system to system.
A multi-thread channel expansion method to system, the method for stating comprises:
Configuration handover module receive channel mode of extension switching command; Described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch;
According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if so, command link configuration module is adjusted according to described destination channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel.
A multi-thread channel spreading device to system, described device comprises configuration handover module and line configuring module,
Described configuration handover module receive channel mode of extension switching command, described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch; According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if so, described in instruction, line configuring module is adjusted according to described destination channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel.
Described line configuring module receives after the instruction of described configuration handover module transmission, according to described configuration handover module destination channel expansion scheme, the generate pattern of described intrasystem conventional channel and extended channel is adjusted.
A kind of multi-thread to system, described system comprise many lines to above-mentioned channel spreading device, described channel spreading device receive channel mode of extension switching command, described channel expansion pattern switching command comprises the destination channel mode of extension of needs switching; According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if, according to described configuration handover module destination channel expansion scheme, by wired right connection adjust, realize the adjustment of generate pattern to conventional channel and extended channel.
The scheme of utilizing the embodiment of the present invention to provide, meet configuration handover module and the line configuring module of the expansion scheme of the system specification and certain constraints by setting, in the time receiving concrete business model switching demand, can switch channel expansion scheme rapidly.Not only greatly dwindle circuit and activated business the handoff response time, but also owing to simplifying the complexity of line configuring module, also greatly reduced switching cost.Like this, increasing under rational constraints, original complicated channel automatic expansion system can be realized easily.
Brief description of the drawings
Fig. 1 is xDSL system reference figure;
Fig. 2 is DSL channel common mode extended mode schematic diagram;
Fig. 3 is DSL channel differential mode extended mode schematic diagram
Fig. 4 is a kind of multi-thread channel expansion method flow diagram to system of the embodiment of the present invention;
Fig. 5 is that DSL circuit 2 expands the port connection diagram under 3 patterns;
Fig. 6 is that DSL circuit 4 expands 8 port connection diagrams under 7 channel expansion patterns;
Fig. 7 is a kind of multi-thread channel spreading device structural representation to system of the embodiment of the present invention;
Fig. 8 is that 8 of 16 port systems expand 15 channel expansion schematic diagrames.
Embodiment
The embodiment of the present invention, by a kind of multi-thread channel expansion scheme to system, can be supported multiple different circuit mode of extension simultaneously, and can between multiple different business, realize configuration switching flexibly.
The embodiment of the present invention provides a kind of multi-thread channel expansion method to system, as shown in Figure 4,
Step 402: configuration handover module receive channel mode of extension switching command; Described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch;
Step 404: described configuration handover module is according to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if so, execution step 406;
Step 406: described configuration handover module command link configuration module is adjusted according to described destination channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel.
Further, described method also comprises that described line configuring module receives after the instruction of described configuration handover module transmission, according to described configuration handover module destination channel expansion scheme, the generate pattern of described intrasystem conventional channel and extended channel is adjusted.
Further, before described method starts, set in advance configuration handover module and the line configuring module of supporting certain expansion scheme set, the set of described channel expansion scheme is the channel expansion scheme set under the specification of described system own and application constraint condition restriction.
Further, in the time judging that described destination channel mode of extension is not in the channel expansion scheme set under the specification of described system own and application constraint condition restriction, stop the handover operation of above-mentioned destination channel mode of extension.
First, the multi-thread channel expansion scheme to system is generally subject to multi-thread to the specification of service system own and application constraint condition restriction;
Here the specification of system itself refers to the port number of system and the largest circuit of the required support type of activating business.The system here can refer to DSLAM or similar equipment, and the veneer of DSL business is provided, or the set of part port in DSLAM/ veneer.For the system of N port, it can realize at most the mode of extension that the individual common port of floor (N/2) adds floor (N/2)-1 Extended Capabilities Port, and the highest mode of extension is M=floor (N/2).
Taking 8 port systems shown in figure below as example, at common single line, under pattern, each port connects a pair of twisted-pair feeder.It is 4 expansions 7 that the largest circuit of required support is activated business, multi-threadly can be two group 2 to the business configuration of system and expand 3 business models, and 2 single port business models, as shown in Figure 5; Also can be one group 4 and expand 7 business models, and 1 single port business model, as shown in Figure 6;
Business configuration mode including above-mentioned two kinds of business configuration, has formed that to activate business at the largest circuit of 8 port system specifications and required support be the multi-thread business configuration set to system of 4 expansions 7 jointly.
The constraints of above-mentioned application scenarios refers in all schemes of supporting in theory in system line expansion, for realizing the balance between practical application complexity and business configuration flexibility, obtain expansion scheme set more among a small circle, some rational constraints of introducing.For example, from the angle of practical application request and implementation complexity, the compound mode of business model is carried out to restriction.Be specifically as follows the channel expansion mode of selecting the integral number power that basic channel quantity is 2, or carry out the channel expansion mode of channel distribution according to the parity of system port.
The embodiment of the present invention provides a kind of multi-thread channel spreading device to system, comprises configuration handover module and line configuring module; As shown in Figure 7,
Described configuration handover module receive channel mode of extension switching command, described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch;
Described configuration handover module is according to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if so, described in the instruction of described configuration handover module, line configuring module is adjusted according to described destination channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel.
Described line configuring module receives after the instruction of described configuration handover module transmission, according to described configuration handover module destination channel expansion scheme, the generate pattern of described intrasystem conventional channel and extended channel is adjusted.
Further, described configuration handover module and line configuring module are supported in the channel expansion scheme set under the specification of described system own and application constraint condition restriction.
Further, described configuration handover module, in the time judging that described destination channel mode of extension is not in the channel expansion scheme set under the specification of described system own and application constraint condition restriction, stops the handover operation of described destination channel mode of extension.
Further, described application constraint condition comprises the channel expansion mode of selecting the integral number power that basic channel quantity is 2, or carries out the channel expansion mode of channel distribution according to the parity of system port.
Configuration handover module can be realized by software or hardware, and line configuring module can be passed through hardware circuit, and chip or other modes realize.
Further illustrate below in conjunction with instantiation:
Suppose, described system is 16 ports, the largest circuit of its required support activate business (being the specification of system own) be 8 expansions 15; Application constraint condition is the quantity of basic channel to be defined as to 2 integral number power, and destination channel mode of extension is 1 group 4 and expands 7 business models, and 2 group 2 expanded 3 business models, and 3 single port business models.As shown below
Expand 15 business supports as shown in Figure 8 with 8 under 16 port system constraintss:
Wherein, the quantity of basic channel is 8, and the quantity of extended channel and cascade extended channel thereof is 7, and a remaining channel is fixing to be used as common port.Further, then pass through various downward operation splittings, can realize all following business configuration:
1) 1 group 8 is expanded 15 business models, and 1 single port business model;
2) 2 group 4 is expanded 7 business models, and 2 single port business models;
3) 1 group 4 is expanded 7 business models, and 2 group 2 expanded 3 business models, and 3 single port business models;
4) 1 group 4 is expanded 7 business models, and 1 group 2 expanded 3 business models, and 6 single port business models;
5) 4 group 2 is expanded 3 business models, and 4 single port business models;
6) 3 group 2 is expanded 3 business models, and 7 single port business models;
7) 2 group 2 is expanded 3 business models, and 10 single port business models;
8) 1 group 2 is expanded 3 business models, and 13 single port business models;
9) 16 single port business models;
Configuration handover module receives the channel expansion pattern switching command that network side or user's side send over, described channel expansion pattern switching command comprises that the application constraint condition of channel expansion is 3) expand 7 business models for 1 group 4, with 2 group 2 expand 3 business models, and 3 single port business models; ;
According to described channel expansion pattern switching command, in the channel expansion scheme set that meets the specification of described system own and application constraint condition restriction, finding destination channel mode of extension is exactly the 3rd kind of channel expansion scheme in set; Command link configuration module is adjusted according to the 3rd kind of channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel;
Line configuring module is received after the instruction of configuration handover module transmission, according to the 3rd kind of channel expansion scheme, the generate pattern of described intrasystem conventional channel and extended channel is adjusted; Make it to generate corresponding business model such as opening or closing each the switch on circuit.
It is a kind of multi-thread to system that the embodiment of the present invention also provides, described system comprises above-mentioned channel spreading device and many lines pair, described channel spreading device receive channel mode of extension switching command, described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch; According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if, according to described configuration handover module destination channel expansion scheme, by wired right connection adjust, realize the adjustment of generate pattern to conventional channel and extended channel.
Like this, system is under above-mentioned constraints, and all patterns of activating business can be all that build on basis by 2 expansion 3 business, so will greatly simplify the complexity of line configuring module.In the time receiving concrete business model switching demand, can switch channel expansion scheme rapidly.
Further, shown device comprises crosstalk counteracting module, according to the channel expansion scheme that obtains after switching, by combining technology such as sending/combine reception, complete line between crosstalk signal eliminate.
It should be noted that in order more clearly to describe the present invention, is above all the mode of extension based on CM all about the explanation of this invention.In fact, the present invention can combine from different extended modes (CM, AM, both combinations etc.), but is not limited to concrete extended mode.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential hardware platform by software and realize, and can certainly all implement by hardware.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the present invention or embodiment.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a multi-thread channel expansion method to system, is characterized in that, described method comprises:
Configuration handover module receive channel mode of extension switching command; Described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch;
According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if so, command link configuration module is adjusted according to described destination channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel; The set of described channel expansion scheme is included in N bar DSL line on basis, produce the multiple channel expansion scheme that is not more than N-1 extended channel, wherein every kind of channel expansion scheme has been determined described multi-thread quantity and generate pattern to the conventional channel between many twisted-pair feeders in system and extended channel; If not, stop channel expansion pattern handover operation.
2. method according to claim 1, it is characterized in that, before configuration handover module receive channel mode of extension switching command, set in advance configuration handover module and the line configuring module of supporting certain expansion scheme set, the set of described channel expansion scheme is the channel expansion scheme set under the specification of described system own and application constraint condition restriction.
3. method according to claim 1, it is characterized in that, in the time judging that described destination channel mode of extension is not in the channel expansion scheme set under the specification of described system own and application constraint condition restriction, stop the handover operation of described destination channel mode of extension.
4. method according to claim 1, is characterized in that, described application constraint condition comprises the channel expansion mode of selecting the integral number power that basic channel quantity is 2, or carries out the channel expansion mode of channel distribution according to the parity of system port.
5. according to the method described in any one in claim 1-4, it is characterized in that, described method also comprises that described line configuring module receives after the instruction of described configuration handover module transmission, according to described configuration handover module destination channel expansion scheme, the generate pattern of described intrasystem conventional channel and extended channel is adjusted.
6. a multi-thread channel spreading device to system, is characterized in that, described device comprises configuration handover module and line configuring module,
Described configuration handover module receive channel mode of extension switching command, described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch; According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if so, described in instruction, line configuring module is adjusted according to described destination channel expansion scheme the generate pattern of described intrasystem conventional channel and extended channel; The set of described channel expansion scheme is included in N bar DSL line on basis, produce the multiple channel expansion scheme that is not more than N-1 extended channel, wherein every kind of channel expansion scheme has been determined described multi-thread quantity and generate pattern to the conventional channel between many twisted-pair feeders in system and extended channel; If not, stop channel expansion pattern handover operation;
Described line configuring module receives after the instruction of described configuration handover module transmission, according to described configuration handover module destination channel expansion scheme, the generate pattern of described intrasystem conventional channel and extended channel is adjusted.
7. channel spreading device according to claim 6, is characterized in that, described configuration handover module and line configuring module are supported in the channel expansion scheme set under the specification of described system own and application constraint condition restriction.
8. channel spreading device according to claim 7, it is characterized in that, described configuration handover module, in the time judging that described destination channel mode of extension is not in the channel expansion scheme set under the specification of described system own and application constraint condition restriction, stops the handover operation of described destination channel mode of extension.
9. channel spreading device according to claim 6, is characterized in that, described application constraint condition comprises the channel expansion mode of selecting the integral number power that basic channel quantity is 2, or carries out the channel expansion mode of channel distribution according to the parity of system port.
One kind multi-thread to system, it is characterized in that, described system comprise many lines to claim 6-9 in channel spreading device described in any one, described channel spreading device receive channel mode of extension switching command, described channel expansion pattern switching command comprises the destination channel mode of extension that needs switch; According to described channel expansion pattern switching command, judge that described destination channel mode of extension is whether in the channel expansion scheme set meeting under the specification of described system own and application constraint condition restriction, if, according to described configuration handover module destination channel expansion scheme, by wired right connection adjust, realize the adjustment of generate pattern to conventional channel and extended channel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/077019 WO2012106879A1 (en) | 2011-07-11 | 2011-07-11 | Channel expansion method, device and system |
Publications (2)
| Publication Number | Publication Date |
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| CN102349260A CN102349260A (en) | 2012-02-08 |
| CN102349260B true CN102349260B (en) | 2014-10-08 |
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| CN201180001556.7A Expired - Fee Related CN102349260B (en) | 2011-07-11 | 2011-07-11 | Channel expansion method, method and system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7433365B1 (en) * | 2004-08-31 | 2008-10-07 | Adtran, Inc. | System architecture for linking channel banks of a data communication system |
| CN101472299A (en) * | 2007-12-28 | 2009-07-01 | 华为技术有限公司 | Method, system and device for dynamically determining Off-Channel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075181A1 (en) * | 2009-12-17 | 2011-06-23 | Qualcom Incorporated | Method and apparatus for explict signaling of baton handover in td-scdma systems |
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- 2011-07-11 CN CN201180001556.7A patent/CN102349260B/en not_active Expired - Fee Related
- 2011-07-11 WO PCT/CN2011/077019 patent/WO2012106879A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7433365B1 (en) * | 2004-08-31 | 2008-10-07 | Adtran, Inc. | System architecture for linking channel banks of a data communication system |
| CN101472299A (en) * | 2007-12-28 | 2009-07-01 | 华为技术有限公司 | Method, system and device for dynamically determining Off-Channel |
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| Publication number | Publication date |
|---|---|
| CN102349260A (en) | 2012-02-08 |
| WO2012106879A1 (en) | 2012-08-16 |
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