CN103199892B - Eliminate network equipment and the method for interference among transmitting ports - Google Patents
Eliminate network equipment and the method for interference among transmitting ports Download PDFInfo
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- CN103199892B CN103199892B CN201210002002.5A CN201210002002A CN103199892B CN 103199892 B CN103199892 B CN 103199892B CN 201210002002 A CN201210002002 A CN 201210002002A CN 103199892 B CN103199892 B CN 103199892B
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- transmission port
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Abstract
The invention discloses the network equipment for eliminating interference among transmitting ports and method, the network equipment eliminating interference among transmitting ports includes multiple transmission port, several comparators multiple and a control unit.Several comparators the plurality of are respectively coupled to the plurality of transmission port, wherein one first several comparators be used for comparing its one first corresponding transmission port one first several with one second transmission port one second several produce a comparative result.It addition, this control unit is used for producing a control signal to eliminate the interference between transmission port according to this comparative result.
Description
Technical field
The relevant a kind of network equipment of the present invention and correlation technique thereof, a kind of network dress eliminating interference among transmitting ports
Put and correlation technique.
Background technology
It is said that in general, have the network equipments such as the interchanger of multiple transmission port, often can run into and transmit port from other
Interference.For example, in order to reduce cost, the transformer of (multi-port switch) in present multi-port switch
(transformer) often the coil of two or four transmission ports is wound on inside same assembly, due to transformer
Inside coil signal can be caused to interact, therefore adjacent transmission port will interfere with each other and affect signal quality.
Therefore, how to eliminate interference among transmitting ports and become asking of needed badly the solution of one skilled in the art
Topic.
Summary of the invention
An object of the present invention is to provide a kind of network equipment, and it utilizes several (seed) letter between transmission port
Breath eliminates interference among transmitting ports, to solve the problem in prior art.
Embodiments of the invention disclose a kind of network equipment eliminating interference among transmitting ports and include multiple transmission end
Mouth, several comparators multiple and a control unit.Several comparators the plurality of are respectively coupled to the plurality of transmission port, its
In, one first several comparators be used for compare corresponding to one first transmission port one first several be adjacent transmission port
One second several a time gap produce a comparative result.This control unit is coupled to several comparators the plurality of, uses
A control signal is produced to eliminate the interference between transmission port according to this comparative result.
Embodiments of the invention disclose a kind of method eliminating interference among transmitting ports.The method comprises the multiple biographies of offer
Defeated port；Corresponding to Bi compare one first transmission port one first several be adjacent transmission port one second several one
Time gap produces a comparative result；And produce a control signal to eliminate between transmission port according to this comparative result
Interference.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the present invention eliminates an embodiment of the network equipment of interference among transmitting ports.
Fig. 2 is the merit of an example of the transceiver corresponding to a particular channel in the specific transmission port of shown in Fig. 1
Can block diagram.
Fig. 3 is the flow chart that the present invention eliminates an example operation of the method for interference among transmitting ports.
Fig. 4 is the flow chart that the present invention eliminates another example operation of the method for interference among transmitting ports.
Symbol description
100 network equipments
110,120,130,140 several comparators
115,125,135,145 control unit 160 transformer
A, B, C, D transmit port 200 transceiver
210 receive circuit 220 transmits circuit
230 echo canceller 240 near-end crosstalk arresters
250 across port interference eliminator 260 adder
Detailed description of the invention
Some vocabulary is employed to censure specific assembly in the middle of specification and follow-up claim.Affiliated neck
Territory has usually intellectual it is to be appreciated that hardware manufacturer may call same assembly with different nouns.This theory
In the way of bright book and follow-up claim not difference by title is used as distinguishing assembly, but with assembly in function
On difference be used as distinguish criterion." comprising " mentioned in the middle of specification and follow-up claims in the whole text is to be out
Put the term of formula, therefore " comprise but be not limited to " should be construed to.Additionally, " coupling " word comprise at this any directly and indirectly
Electrical connection, therefore, if a first device is coupled to one second device described in literary composition, then representing this first device can be direct
It is electrically connected in this second device, or is indirectly electrically connected to this second device by other device or connection means.
Refer to Fig. 1, Fig. 1 is the signal that the present invention eliminates an embodiment of the network equipment 100 of interference among transmitting ports
Figure.Not affecting under the technology of the present invention disclosure, in the present embodiment, network equipment 100 is with one 4 port interchangers (switch)
As a example by illustrate, but the restrictive condition of this and non-invention.As it is shown in figure 1, network equipment 100 includes (but not limited to)
Multiple transmission port A～D, several comparators 110～140 multiple, more than one control unit 115～145 and a transformer
160.Several comparators 110～140 multiple are respectively coupled to multiple transmission port A～D, and wherein, several comparators each are used for
One first of this transmission port corresponding to Bi compare several be adjacent transmission port one second several a time gap come
Produce a comparative result CR, for example, if several seed A of the transmission port A of correspondence, the number of corresponding transmission port B
Plant several seed D of the transmission port D of seed B, several seed C of corresponding transmission port C and correspondence, then several ratios
Relatively device 110 can compare a time gap of these first several (several seed A) and these second several (several seedB) and produce
A raw comparative result CRA, and several comparators 120 compare these first several (several seed B) and its this second several (several
Seed A and several seed C) time gap produce a comparative result CRB, remaining is by that analogy.
It addition, multiple control units 115～145 are respectively coupled to several comparators 110～140 the plurality of, for foundation
Comparative result CR produces control signal CS to eliminate the interference between transmission port.Note that in each transmission port
Channel has identical several, and several have a cycle period, such as, can select at the beginning of one group of buffer (such as 11)
Initial value is used as several, and the initial value of this group buffer is a length of 2047 and have a periodic virtual noise sequence
(Pseudo-Noise, PN sequence), this virtual noise sequence can every 2047 position circulation primary, say, that several
Cycle period is 2047, it addition, several and data stream will produce a transmission signal, therefore, profit after logical operation
With several there is the characteristic of cycle period, just can be according to this of this first several and its neighboring transmission port second between several
This time gap close, overlap, away from process judge that to be eliminated is the transmission signal or phase oneself being up to
The interference that adjacent transmission port is caused.
Note that above-mentioned network equipment 100 can be an interchanger, but be not limited thereto, also can be other kind
Network equipment.Furthermore, the number of transmission port and channel is only for illustrating the example of the present invention, and the restriction bar of non-invention
Part.Please it is further noted that, network equipment 100 can be applicable to 10M/100MBase-T system, 1GBase-T system or 10Gbase-T system
System, but the invention is not limited in this, it is equally applicable for other network system.These design variation all belong to the model of the present invention
Farmland.
Refer to Fig. 2, Fig. 2 is the transceiver 200 corresponding to a particular channel in the specific transmission port of shown in Fig. 1
The functional block diagram of an example.Transceiver 200 comprises (but being not limited to) and receives circuit 210, transmission circuit 220,
Echo canceller 230, one near-end crosstalk arrester 240, one is across port interference eliminator 250 and an adder 260.Assume this
Specific transmission port is the transmission port A shown in Fig. 1, then echo canceller 230 is used for receiving from this particular channel biography itself
The echo on power transmission road 220, near-end crosstalk arrester 240 is used for receiving the near-end crosstalk of other channel in transmission port A, and
Across port interference eliminator 250 be used for receiving from all channels in other transmission port B, C, D across port near-end crosstalk.
Adder 260 is coupled to receive circuit 210, echo canceller 230, near-end crosstalk arrester 240 and eliminate across port interference
Between device 250, it is used for receiving and echo canceller 230, near-end crosstalk arrester 240 and across port interference eliminator 250 institute
The signal of input, and perform an add operation to produce a process signal to receiving circuit 210.Note that an above-mentioned reception
Circuit 210, one transmits the operating principle of circuit 220, echo canceller 230 and an adder 260 for knowing this personage
Known, just repeated no more at this.It addition, across port interference eliminator 250 and near-end crosstalk arrester 240 be a limited frequency
Rate response filter, but the restrictive condition of this concurrent present invention.
Next give some instances and illustrate how this control unit eliminates between transmission port according to this comparative result
Interference.Referring again to Fig. 1 and Fig. 2, when comparative result CR instruction is when this first several and this second several time
When distance is less than a critical value, represent this first several and this second several soon overlap, now, it is impossible to correct judgement want
Eliminate is to transmit the signal that port A is up on earth, or the impact that next door transmission port B is on transmission port A, therefore, and control
Unit 115 processed will stop updating the parameter of near-end crosstalk arrester 240 and opening across port interference eliminator 250, and
When this first several and this second several this time gap is more than a critical value, represent this first several and this second
Several away from, control unit 115 will reopen the update mechanism of the parameter of near-end crosstalk arrester 240.Noticeable
It is in an alternative embodiment of the invention, when a specific transmission port enters electricity-saving mechanism, then to represent this specific transmission port
(such as transmission port C) will not get transmission signal the most frequently, and therefore control unit 135 will be closed corresponding to this transmission end
Mouthful across port interference eliminator 250, wherein, this electricity-saving mechanism meets what IEEE (IEEE) was formulated
The energy-conservation Ethernet of 802.3az (Energy EfficientEthernet, EEE) standard.
Refer to Fig. 3.Fig. 3 is the flow chart that the present invention eliminates an example operation of the method for interference among transmitting ports, its
Comprise (but being not limited to) below step (if note that and can obtaining the result being substantially the same, then these steps differing
Surely to perform in accordance with the execution order shown in Fig. 3):
Step S300: flow process starts.
Step S310: multiple transmission port is provided.
Step S320: relatively the one first of a specific transmission port of the plurality of transmission several be adjacent transmission port
One second several produce a comparative result.
Step S330: eliminate the interference between transmission port according to this comparative result.
Step S340: flow process terminates.
The each step shown in Fig. 3 of please arranging in pairs or groups and each assembly shown in Fig. 1 can learn how each assembly operates, for succinctly
For the sake of, therefore repeat no more in this.Wherein, step S320 is performed it by several comparators, and step S330 is single by controlling
Unit performs.
Refer to the flow chart of another example operation that Fig. 4, Fig. 4 eliminate the method for interference among transmitting ports, its comprise (but
It being not limited to) (if note that and can obtaining the result being substantially the same, then these steps are not necessarily to abide by below step
Perform according to the execution order shown in Fig. 4):
Step 400: flow process starts.
Step 410: multiple transmission port is provided.
Step 420: one first of the specific transmission port corresponding to comparing several be adjacent the one the of transmission port
Two several time gaps produce a comparative result.
Step 430: when the instruction of this comparative result is when this first several and this second several this time gap is less than one
During critical value, this control unit stops updating the parameter of this near-end crosstalk arrester and unlatching should be across port interference eliminator.
Step 440: when this first several and this second several this time gap more than a critical value time, this control list
Unit reopens the update mechanism of the parameter of this near-end crosstalk arrester.
Step S450: flow process terminates.
The each assembly shown in each step shown in Fig. 4, Fig. 1 and Fig. 2 of please arranging in pairs or groups can learn how each assembly operates, for
For purpose of brevity, therefore repeat no more in this.Wherein, step S420 is performed by several comparators, and step S430, step
S440 is performed by control unit.
The step of above-mentioned each flow process is only the present invention for feasible embodiment, and the restrictive condition of the unrestricted present invention,
And in the case of the spirit of the present invention, those methods can additionally comprise other intermediate steps or can be by several steps
It is merged into one step, to do suitable change.
Embodiment described above is only used for illustrating the technical characteristic of the present invention, is not used for limiting to the category of the present invention.
From the foregoing, it will be observed that the present invention provides a kind of network equipment eliminating interference among transmitting ports and correlation technique thereof.Utilize transmission port
Between several (seed) information control this across port interference eliminator and the running of this near-end crosstalk arrester, can disappear
Except the interference from other transmission port.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modify, all should belong to the covering scope of the present invention.
Claims (13)
1. a network equipment, includes:
Multiple transmission ports；
Several comparators multiple, are respectively coupled to the plurality of transmission port, and wherein, in several comparators the plurality of
One several comparators be used for comparing corresponding to one first transmission port one first several and the one the of one second transmission port
Two several time gap and critical values are to produce a comparative result；And
One control unit, is coupled to described first several comparators, be used for according to described comparative result produce a control signal with
Judge that the parameter being off also being on near-end crosstalk arrester updates, thus eliminate the interference between the plurality of transmission port
Or the near-end crosstalk interference from other channel outside a particular channel of the plurality of transmission port,
Wherein, face less than one when the described first several and the described second several time gap when the instruction of described comparative result
During dividing value, described control unit stops updating the parameter of described near-end crosstalk arrester and opening across port interference eliminator,
And when described first several and described second several described time gap more than a critical value time, described control unit weight
The update mechanism of the new parameter opening described near-end crosstalk arrester.
Network equipment the most according to claim 1, wherein, each transmission port includes:
One across port interference eliminator, is coupled to described control unit, is used for eliminating transmission port according to described comparative result
Between interference；And
At least one near-end crosstalk arrester, is coupled to described control unit, is used for eliminating from institute according to described comparative result
The near-end crosstalk stating other channel outside a particular channel of transmission port is disturbed.
Network equipment the most according to claim 2, wherein, when a transmission port enters electricity-saving mechanism, described control list
Unit closes the described across port interference eliminator of corresponding extremely described transmission port.
Network equipment the most according to claim 3, wherein, it is made that described electricity-saving mechanism meets IEEE
Fixed 802.3az energy-conservation Ethernet standard.
Network equipment the most according to claim 2, wherein, described disappears across port interference eliminator and described near-end crosstalk
Except device is finite frequency response filter.
Network equipment the most according to claim 1, wherein, described first transmission port is phase with described second transmission port
Adjacent transmission port.
Network equipment the most according to claim 1, its be applied to 10M/100MBase-T system, 1GBase-T system or
Person's 10Gbase-T system.
Network equipment the most according to claim 1, it is an interchanger.
9. the method eliminating interference among transmitting ports, includes:
Multiple transmission port is provided；
One second several time gap of the one first of one first transmission port several and one second transmission port is faced with one
Dividing value compares to produce a comparative result；And
A control signal is produced to judge to be off also being on the parameter of near-end crosstalk arrester more according to described comparative result
Newly, thus eliminate the interference between the plurality of transmission port or from outside a particular channel of the plurality of transmission port
The near-end crosstalk interference of other channel,
Wherein, face less than one when the described first several and the described second several time gap when the instruction of described comparative result
During dividing value, stop updating the parameter of described near-end crosstalk arrester and opening across port interference eliminator, and when described the
One several and described second several described time gap more than a critical value time, reopen described near-end crosstalk arrester
The update mechanism of parameter.
Method the most according to claim 9, also includes:
Offer one, across port interference eliminator, eliminates the interference between transmission port according to described control signal；And
At least one near-end crosstalk arrester is provided, according to described control signal eliminate from described transmission port one specific
The near-end crosstalk interference of other channel outside channel.
11. methods according to claim 10, wherein, when a transmission port enters electricity-saving mechanism, close corresponding to institute
State the described across port interference eliminator of transmission port.
12. methods according to claim 9, wherein, described first transmission port is adjacent with described second transmission port
Transmission port.
13. methods according to claim 11, wherein, described electricity-saving mechanism meets IEEE and is formulated
802.3az energy-conservation Ethernet standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002002.5A CN103199892B (en) | 2012-01-05 | 2012-01-05 | Eliminate network equipment and the method for interference among transmitting ports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002002.5A CN103199892B (en) | 2012-01-05 | 2012-01-05 | Eliminate network equipment and the method for interference among transmitting ports |
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| Publication Number | Publication Date |
|---|---|
| CN103199892A CN103199892A (en) | 2013-07-10 |
| CN103199892B true CN103199892B (en) | 2016-09-07 |
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| CN201210002002.5A Active CN103199892B (en) | 2012-01-05 | 2012-01-05 | Eliminate network equipment and the method for interference among transmitting ports |
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| CN101471791A (en) * | 2007-12-28 | 2009-07-01 | 瑞昱半导体股份有限公司 | Network device and method sharing coefficient update processor |
| CN101488780A (en) * | 2008-01-15 | 2009-07-22 | 瑞昱半导体股份有限公司 | Network apparatus for eliminating interference between transmission interfaces and method thereof |
| CN101652933A (en) * | 2006-10-20 | 2010-02-17 | 爱立信股份有限公司 | Arrangements in a digital subscriber line system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9323311B2 (en) * | 2006-06-22 | 2016-04-26 | Broadcom Corporation | Method and system for packet based signaling between A Mac and A PHY to manage energy efficient network devices and/or protocols |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101652933A (en) * | 2006-10-20 | 2010-02-17 | 爱立信股份有限公司 | Arrangements in a digital subscriber line system |
| CN101471791A (en) * | 2007-12-28 | 2009-07-01 | 瑞昱半导体股份有限公司 | Network device and method sharing coefficient update processor |
| CN101488780A (en) * | 2008-01-15 | 2009-07-22 | 瑞昱半导体股份有限公司 | Network apparatus for eliminating interference between transmission interfaces and method thereof |
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| CN103199892A (en) | 2013-07-10 |
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