CN107920038A - Balanced device adjusting method and device - Google Patents
Balanced device adjusting method and device Download PDFInfo
- Publication number
- CN107920038A CN107920038A CN201711053223.4A CN201711053223A CN107920038A CN 107920038 A CN107920038 A CN 107920038A CN 201711053223 A CN201711053223 A CN 201711053223A CN 107920038 A CN107920038 A CN 107920038A
- Authority
- CN
- China
- Prior art keywords
- data
- output data
- exclusive
- error rate
- result
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a kind of balanced device adjusting method and device.Wherein, this method includes：Receive the output data that balanced device to the data by transmission export after channel compensation；Judge whether the error rate of output data is more than or equal to error rate threshold；In the case where the judgment result is yes, the channel compensation coefficient that channel compensation is carried out to balanced device is adjusted, until the error rate of the output data of balanced device is less than error rate threshold.The present invention solve due to for improve existing equalizer channel compensate precision and caused by implementation complexity technical problem.
Description
Technical field
The present invention relates to signal communication field, in particular to a kind of balanced device adjusting method and device.
Background technology
Correlation technique is in high-speed serial data communication, due to being influenced by fading channel and Kelvin effect etc., receiving terminal number
According to serious intersymbol interference can be subject to.At Serial data receiving end by equalizer compensation fading channel, including continuous
Linearly balanced device, decision feedback equalizer, preferable compensation result can be completely counterbalanced by the decay of channel.But due to difference
The uncertainty and compensating equalization device of fading channel amplitude can be mended by deviation of technique etc., compensation there are undercompensation or excessively
Repay, receiving terminal both can be caused to recover data allowance and reduced.Existing compensation model includes but not limited to：1st, send after the power is turned on
End and the agreement compensation adjustment of receiving terminal；2nd, data high frequency, the proportionate relationship of low frequency component adaptively connect after being compensated by detection
Continuous linearly balanced device；3rd, the decision feedback equalizer based on least square method.But it is logical that above compensation model is required to auxiliary
The frequency spectrum detection circuit in road or complexity, implementation is complicated, and cannot reach the effect precisely compensated.
For it is above-mentioned the problem of, not yet propose effective solution at present.
The content of the invention
An embodiment of the present invention provides a kind of balanced device adjusting method and device, at least to solve due to existing equal to improve
Weighing apparatus channel compensation precision and caused by implementation complexity technical problem.
One side according to embodiments of the present invention, there is provided a kind of balanced device adjusting method, including：Receive described equal
The output data that weighing apparatus to the data by transmission export after channel compensation；Judge the error rate of the output data
Whether error rate threshold is more than or equal to；In the case where the judgment result is yes, the channel of channel compensation is carried out to the balanced device
Penalty coefficient is adjusted, until the error rate of the output data of the balanced device is less than the error rate threshold.
Optionally, before whether the error rate for judging the output data is more than or equal to the error rate threshold,
Further include：The output data is sent to XOR gate, obtains the exclusive or result of the output data；According to the exclusive or result
Determine the error rate of the output data.
Optionally, the output data is sent to XOR gate, obtaining the exclusive or result of the output data includes：
The output data is sampled, obtains sampled data；Exclusive or processing is carried out to the sampled data using the XOR gate,
The exclusive or of the sampled data is obtained as a result, wherein, the exclusive or result of the sampled data of acquisition is the output data
The exclusive or result.
Optionally, the output data is sampled, obtaining sampled data includes：By using auxiliary sampling clock
First comparator carries out the output data sampling and obtains the first sampled data；By using the second ratio of center sampling clock
Sampling is carried out to the output data compared with device and obtains the second sampled data, wherein, the auxiliary sampling clock is adopted with the center
Sample clock is poor there are predetermined phase；Exclusive or processing is carried out to the sampled data using the XOR gate, obtains the hits
According to exclusive or result include：By under the first comparator first sampled data and the auxiliary sampling clock
First reference data, obtains the first comparative result；By second comparator, second sampled data and it is described in
The second reference data under heart sampling clock, obtains the second comparative result；Using the XOR gate to first comparative result
Exclusive or processing is carried out with second comparative result, obtains the exclusive or result of the sampled data.
Optionally, the channel compensation coefficient that channel compensation is carried out to the balanced device is adjusted, until the balanced device
The error rate of output data include less than the error rate threshold：The channel compensation coefficient of the balanced device is adjusted
Afterwards, judge whether parameter threshold is reached to the parameter value of the corresponding eye pattern of output data after data progress channel compensation；
In the case where judging result is no, increases auxiliary sampling clock and predetermined phase existing for center sampling clock is poor, until right
The parameter value of the corresponding eye pattern of output data after the data progress channel compensation reaches predetermined threshold, determines the balanced device
The error rate of output data be less than the error rate threshold.
Another aspect according to embodiments of the present invention, additionally provides a kind of balanced device regulating device, including：Receiving module,
The output data for the data by transmission export after channel compensation for receiving the balanced device；Judge mould
Whether block, the error rate for judging the output data are more than or equal to error rate threshold；Module is adjusted, in judging result
In the case of being, the channel compensation coefficient that channel compensation is carried out to the balanced device is adjusted, until the balanced device
The error rate of output data is less than the error rate threshold.
Optionally, which further includes：XOR gate module, for sending the output data to XOR gate, obtains institute
State the exclusive or result of output data；Determining module, for determining the mistake of the output data according to the exclusive or result
Rate.
Optionally, the XOR gate module includes：Sampling unit, for being sampled to the output data, is adopted
Sample data；Exclusive or processing unit, for carrying out exclusive or processing to the sampled data using the XOR gate, obtains the sampling
The exclusive or of data is as a result, wherein, the exclusive or result of the sampled data of acquisition is the exclusive or result of the output data.
Optionally, the sampling unit includes：First sampling subelement, for by using the first of auxiliary sampling clock
Comparator carries out the output data sampling and obtains the first sampled data；Second sampling subelement, for by using center
Second comparator of sampling clock carries out the output data sampling and obtains the second sampled data, wherein, the auxiliary sampling
Clock and the center sampling clock are poor there are predetermined phase；The exclusive or processing unit includes：First comparing subunit, is used for
By the first reference data under the first comparator first sampled data and the auxiliary sampling clock, obtain
First comparative result；Second comparing subunit, for passing through second comparator, second sampled data and described
The second reference data under center sampling clock, obtains the second comparative result；Subelement is obtained, for using the XOR gate pair
First comparative result and second comparative result carry out exclusive or processing, obtain the exclusive or result of the sampled data.
Optionally, the adjustment module includes：Judging unit, for being adjusted to the channel compensation coefficient of the balanced device
After whole, judge whether parameter threshold is reached to the parameter value of the corresponding eye pattern of output data after data progress channel compensation
Value；Determination unit, it is pre- existing for increase auxiliary sampling clock and center sampling clock in the case of being no in judging result
Phase bit is poor, until the parameter value that the data are carried out with the corresponding eye pattern of output data after channel compensation reaches parameter threshold
Value, determines that the error rate of the output data of the balanced device is less than the error rate threshold.
Another aspect according to embodiments of the present invention, there is provided a kind of communication equipment, the communication equipment are applied to above-mentioned
Balanced device adjusting method described in one.
In embodiments of the present invention, by the way of automatic adjusument, by receiving balanced device to passing through transmission
Data carry out the output data that exports after channel compensation；Judge whether the error rate of output data is more than or equal to error rate threshold
Value；In the case where the judgment result is yes, the channel compensation coefficient that channel compensation is carried out to balanced device is adjusted, until balanced
The error rate of the output data of device is less than the error rate threshold, has achieveed the purpose that automatic adjusument equalizer compensation coefficient,
It is achieved thereby that technique effect that is simple in structure and compensating accurately progress channel compensation, and then solve due to existing to improve
Equalizer channel compensate precision and caused by implementation complexity technical problem.
Brief description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of balanced device adjusting method according to embodiments of the present invention；
Fig. 2 is eye pattern closure according to embodiments of the present invention, opens schematic diagram；
Fig. 3 is the auxiliary sampling clock implementation method schematic diagram of balanced device adjusting method according to embodiments of the present invention；
Fig. 4 is that the data sampling of balanced device adjusting method according to embodiments of the present invention realizes the principle signal of logic judgment
Figure；
Fig. 5 is the judgement flow principle schematic of balanced device adjusting method according to embodiments of the present invention；
Fig. 6 is the structure diagram of balanced device regulating device according to embodiments of the present invention；
Fig. 7 is the optimization structure diagram of balanced device regulating device according to embodiments of the present invention；
Fig. 8 is the structure diagram of balanced device regulating device XOR gate module 72 according to embodiments of the present invention；
Fig. 9 is at the sampling unit 82 and exclusive or of balanced device regulating device XOR gate module 72 according to embodiments of the present invention
Manage the structure diagram of unit 84；
Figure 10 is the structure diagram of balanced device regulating device adjustment module 66 according to embodiments of the present invention；
Figure 11 is that the equalizer adaptation built according to embodiments of the present invention adjusts the optimization system knot of channel compensation system
Composition.
Embodiment
In order to make those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Attached drawing, is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work, should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to the embodiment of the present invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
According to embodiments of the present invention, there is provided the embodiment of the method that a kind of balanced device is adjusted is, it is necessary to illustrate, in attached drawing
Flow the step of illustrating can be performed in the computer system of such as a group of computer-executable instructions, although also,
Show logical order in flow charts, but in some cases, can with different from order herein perform it is shown or
The step of description.
Fig. 1 is the flow chart of balanced device adjusting method according to embodiments of the present invention, as shown in Figure 1, this method is included such as
Lower step：
Step S102, receives the output number that balanced device to the data by transmission export after channel compensation
According to；
Step S104, judges whether the error rate of output data is more than or equal to error rate threshold；
Step S106, in the case where the judgment result is yes, to balanced device carry out channel compensation channel compensation coefficient into
Row adjustment, until the error rate of the output data of balanced device is less than error rate threshold.
In embodiments of the present invention, by the way of automatic adjusument, by receiving balanced device to passing through transmission
Data carry out the output data that exports after channel compensation, judging situation of the error rate more than error rate threshold of output data
Under, equalizer channel penalty coefficient is adjusted until the error rate of balanced device output data is less than the error rate threshold,
Achieve the purpose that automatic adjusument equalizer compensation coefficient, it is achieved thereby that it is simple in structure and compensate accurately carry out channel compensation
Technique effect, and then solve due to for improve existing equalizer channel compensate precision and caused by implementation it is complicated
Technical problem.Meanwhile the embodiment of the present invention can adjust acquisition Accurate equalization device adjustment factor running an adaptive equalization
Adaptive equalization adjustment module is closed afterwards, so as to save power consumption., wherein it is desired to explanation, above-mentioned error rate can include
It is a variety of, for example, the error rate can include but is not limited to the bit error rate, bit error rate etc..
It is well known that high-speed serial data reaches receiving terminal by channel, since channel is to the high frequency attenuation of signal, receive
As a result the data at end can cause eyes closed in the eye pattern of reception end data or tend to close there are serious intersymbol interference,
Receiving terminal can compensate for the decay of channel by balanced device, but its penalty coefficient cannot be obtained accurately, and such receiving terminal recovers
Clock carries out data sampling and has very high error rate.Pass through above-mentioned steps, it is possible to achieve by increasing adaptive equalization tune
Section process is realized carries out automatic adjusument to the penalty coefficient of balanced device, reaches accurate compensation fading channel.Wherein balanced device
Implementation includes a variety of, can be continuous time linear equalizer, decision feedback equalizer, numeric field wave filter etc., and
These equalizer types are applied in combination.
Preferably, before whether the error rate for judging output data is more than or equal to error rate threshold, further include：Will output
Data sending obtains the exclusive or result of output data to XOR gate；The error rate of output data is determined according to exclusive or result.
First with balanced device to being compensated by the input data of fading channel in the embodiment of the present invention, due to channel
Uncertainty and channel it is affected by environment, balanced device cannot precisely compensate for channel, cannot accurately be mended in balanced device
When repaying channel, receiving terminal carries out input data sampling recovery and has error code.Fig. 2 is that eye pattern according to embodiments of the present invention closes
Close, open schematic diagram, as shown in Fig. 2 201, uncompensated input data eye pattern closure, is easy to cause sample error.Using root
The XOR logic result exported according to XOR gate carries out determining whether error code, and even output is 0, and error code does not occur in expression；It is if defeated
Go out for 1, represent equalizer compensation deficiency, it is necessary to increase the compensation rate in balanced device.At this moment automatic adjusument balanced device system is passed through
Number, opens until balanced device output eye pattern and terminates self adaptive control enough.
Preferably, output data is sent to XOR gate, obtaining the exclusive or result of output data includes：To output data into
Row sampling, obtains sampled data；Using XOR gate to sampled data carry out exclusive or processing, obtain the exclusive or of sampled data as a result,
Wherein, the exclusive or result of the sampled data of acquisition is the exclusive or result of output data.
It should be noted that carrying out logic judgment using XOR gate to realize, obtained first by the way of data sampling
Logic judgment input data.It is huge in data volume involved in data transmission procedure, how to transmitting procedure carry out effective monitoring and
Adjust, one simply and effectively method be exactly to reduce the sizes of data using sampling, that is, take the subset of a large data sets,
Carry out representative calculating.Obtained using the mode of sampling for regulating calculation data, there is inaccurate phenomenon in the case of small probability,
But its result similitude is extraordinary in the case of maximum probability.
Preferably, output data is sampled, obtaining sampled data includes：By using the first of auxiliary sampling clock
Comparator carries out output data sampling and obtains the first sampled data；By using the second comparator of center sampling clock to defeated
Go out data and carry out sampling the second sampled data of acquisition, wherein, auxiliary sampling clock is poor there are predetermined phase with center sampling clock；
Exclusive or processing is carried out to sampled data using XOR gate, obtaining the exclusive or result of sampled data includes：Pass through first comparator ratio
Compared with the first reference data under the first sampled data and auxiliary sampling clock, the first comparative result is obtained；Pass through the second comparator
Compare the second reference data under the second sampled data and center sampling clock, obtain the second comparative result；Using XOR gate pair
First comparative result and the second comparative result carry out exclusive or processing, obtain the exclusive or result of sampled data.
Auxiliary sampling clock is set in adaptive adjustment module, and Fig. 3 is that balanced device according to embodiments of the present invention is adjusted
The auxiliary sampling clock implementation method schematic diagram of method, as shown in figure 3, when the auxiliary sampling clock is sampled relative to data center
Clock has a certain amount of phase offset.It should be noted that the specific implementation of auxiliary clock have it is a variety of, can be delay lock phase
Ring, phase interpolator, simple delay logic gate etc., herein can optional one.Meanwhile using two comparators, respectively to auxiliary
Data and data and reference number after the compensation after reference data and center sampling clock sampling after compensation after sampling clock sampling
According to being compared.Starting timing, the phase very little of the off-center sampling clock of auxiliary clock, if after balanced device
Data compensate well, and the data of auxiliary clock sampling are consistent with the data of center sampling clock, are patrolled carrying out exclusive or
Collect before judging, the output phase of two comparison procedures is same, therefore is 0 by exclusive or logic gate output, and error code does not occur in expression, this is missed
Code is defined as auxiliary sampling clock and the data of center sampling clock sampling are inconsistent.
Preferably, the channel compensation coefficient of balanced device progress channel compensation is adjusted, until the output data of balanced device
Error rate include less than error rate threshold：After being adjusted the channel compensation coefficient of balanced device, judge to carry out letter to data
Whether the parameter value of the corresponding eye pattern of output data after road compensation reaches parameter threshold；In the case where judging result is no,
Increase auxiliary sampling clock and predetermined phase existing for center sampling clock is poor, until data are carried out with the output after channel compensation
The parameter value of the corresponding eye pattern of data reaches parameter threshold, determines that the error rate of the output data of balanced device is less than error rate threshold
Value.Wherein, the parameter value of eye pattern can include a variety of, for example, the parameter value of eye pattern can open amplitude (i.e. level for eye pattern
Open width, vertically open height etc.), dither amplitude of eye pattern etc., in a preferred embodiment of the invention, with the parameter value of eye pattern
For the amplitude of opening of eye pattern, parameter threshold for amplitude threshold for example, after being adjusted to the channel compensation coefficient of balanced device,
Judge to open whether amplitude reaches amplitude threshold to the corresponding eye pattern of output data after data progress channel compensation；Judging
As a result in the case of no, increase auxiliary sampling clock and predetermined phase existing for center sampling clock are poor, up to data into
The amplitude of opening of the corresponding eye pattern of output data after row channel compensation reaches amplitude threshold, determines the output data of balanced device
Error rate is less than error rate threshold.
Fig. 4 is that the data sampling of balanced device adjusting method according to embodiments of the present invention realizes the principle signal of logic judgment
Figure, as shown in figure 4, gradually, the phase of auxiliary clock off center sampling clock is increased, at this moment if what balanced device exported
Eye pattern does not open enough, and the data that auxiliary clock and center sampling clock sampling arrive will be inconsistent, two comparison procedures it is defeated
Go out difference, be 1 by XOR logic output, represent equalizer compensation deficiency, it is necessary to increase the compensation rate in balanced device.At this moment lead to
Cross adaptive equalization adjustment module and adjust equalizer coefficients, opened until balanced device exports eye pattern, auxiliary clock and center sampling
Clock sampling is consistent.Continue the phase deviation of increase auxiliary clock, repeat above procedure, opened until eyes and terminate school enough
Just, Fig. 5 is the judgement flow principle schematic of balanced device adjusting method according to embodiments of the present invention, its flow is as shown in Figure 5.
Another aspect according to embodiments of the present invention, additionally provides a kind of channel compensation device, Fig. 6 is according to this hair
The structure diagram of the balanced device regulating device of bright embodiment, as shown in fig. 6, the balanced device regulating device includes：Receiving module 62,
Judgment module 64, adjusts module 66.The balanced device regulating device is described in detail below.
Receiving module 62, it is defeated to being exported after the data progress channel compensation by transmission for receiving balanced device
Go out data；
Judgment module 64, is connected to above-mentioned receiving module 62, and whether the error rate for judging output data is more than or equal to
Error rate threshold；
Adjust module 66, be connected to above-mentioned judgment module 64, in the case where the judgment result is yes, to balanced device into
The channel compensation coefficient of row channel compensation is adjusted, until the error rate of the output data of balanced device is less than the error rate threshold
Value.
Fig. 7 is the optimization structure diagram of balanced device regulating device according to embodiments of the present invention, as shown in fig. 7, the equilibrium
Device regulating device removes module described in Fig. 6, further includes：XOR gate module 72, determining module 74.The balanced device is adjusted below and is optimized
Device illustrates.
XOR gate module 72, is connected to above-mentioned receiving module 62, for obtaining the exclusive or result of output data；
Determining module 74, is connected between above-mentioned XOR gate module 72 and judgment module 62, for true according to exclusive or result
Determine the error rate of output data.
Fig. 8 is the structure diagram of balanced device regulating device XOR gate module 72 according to embodiments of the present invention, such as Fig. 8 institutes
Show, which includes：Sampling unit 82 and exclusive or processing unit 84, below say the XOR gate module 72
It is bright.
Sampling unit 82, for being sampled to output data, obtains sampled data；
Exclusive or processing unit 84, is connected to above-mentioned sampling unit 82, for carrying out exclusive or to sampled data using XOR gate
Processing, obtains the exclusive or of sampled data as a result, wherein, the exclusive or result of the sampled data of acquisition is the exclusive or knot of output data
Fruit.
Fig. 9 is at the sampling unit 82 and exclusive or of balanced device regulating device XOR gate module 72 according to embodiments of the present invention
Manage the structure diagram of unit 84.As shown in figure 9, the sampling unit 82 includes：First sampling sampling of subelement 90 and second is single
Member 92；The exclusive or processing unit 84 includes the first comparing subunit 94, the second comparing subunit 96 and obtains subelement 98, below
The sampling unit 82 and exclusive or processing unit 84 are illustrated.
First sampling subelement 90, for being adopted by using the first comparator of auxiliary sampling clock to output data
Sample obtains the first sampled data；
Second sampling subelement 92, for being adopted by using the second comparator of center sampling clock to output data
Sample obtains the second sampled data, wherein, auxiliary sampling clock is poor there are predetermined phase with center sampling clock；
First comparing subunit 94, for being compared by first comparator under the first sampled data and auxiliary sampling clock
First reference data, obtains the first comparative result；
Second comparing subunit 96, for being compared by the second comparator under the second sampled data and center sampling clock
Second reference data, obtains the second comparative result；
Subelement 98 is obtained, is connected to above-mentioned first comparing subunit, 94 and second comparing subunit 96, for using different
OR gate carries out exclusive or processing to the first comparative result and the second comparative result, obtains the exclusive or result of sampled data.
Figure 10 is the structure diagram of balanced device regulating device adjustment module 66 according to embodiments of the present invention, such as Figure 10 institutes
Show, which includes：Judging unit 102, determination unit 104, below illustrate the adjustment module 66.
Judging unit 102, after being adjusted the channel compensation coefficient of balanced device, judges to carry out channel benefit to data
Whether the parameter value of the corresponding eye pattern of output data after repaying reaches parameter threshold；
Determination unit 104, is connected to above-mentioned judging unit 102, in the case of being no in judging result, increase auxiliary
Sampling clock and predetermined phase existing for center sampling clock are poor, until the output data carried out to data after channel compensation corresponds to
The parameter value of eye pattern reach parameter threshold, determine that the error rate of the output data of balanced device is less than error rate threshold.
In embodiments of the present invention, a kind of communication equipment is additionally provided, which is applied to described in any of the above-described
Balanced device adjusting method.
Figure 11 is that the equalizer adaptation built according to embodiments of the present invention adjusts the optimization system knot of channel compensation system
Composition, as shown in figure 11, the channel compensation system include：Balanced device 100, adaptive equalization adjustment module 200.Wherein, it is adaptive
Compensation adjustment module 200 is answered to include：(function is the same as the above-mentioned first sampling 90 and first sub- list of comparison of subelement for first comparator 201
Member 94), the second comparator 202 (function is with the above-mentioned second 92 and second comparing subunit 96 of sampling subelement), XOR gate 203
(function is with above-mentioned acquisition subelement 98 and determining module 74), (function is the same as above-mentioned judgment module for spurious error rate detection unit 204
62).The optimization system for adjusting channel compensation system to the equalizer adaptation below illustrates.
Balanced device 100, compensates for docking received compensation data fading channel, and according to the adaptive equalizer of acquisition
Coefficient, adjusts compensation performance, until obtaining without error code channel compensation；
Adaptive equalization adjustment module 200, is connected to balanced device 100, is sampled and is handled for the data after compensation,
With equalizer compensation coefficient described in automatic adjusument.Wherein：First comparator 201, is connected to balanced device 100, for comparing
One sampled data and the first reference data；Second comparator 202, is connected to balanced device 100, for compare the second sampled data and
Second reference data；XOR gate 203, is connected to 201 and second comparator 202 of first comparator, for being sampled to described first
Data compare logic judgment compared with output compares output with second sampled data；Spurious error rate detection unit 204, even
It is connected between XOR gate 203 and balanced device 100, in the case of being in XOR gate judging result, according to detection frequency spectrum feelings
Condition, adjusts the equalizer compensation coefficient.
For the embodiment of the present invention by increasing adaptive equalization adjustment module 200, it includes two comparators, an exclusive or
Door, a spurious error rate computing unit, adjusts equalizer gain, such as continuous time linear equalization by the adaptive adjustment module
Device, decision feedback equalizer etc. are to optimize eye pattern, easy to error free sampling.Specifically, comparator 201, comparator 202 are just defeated
Enter end with the output of balanced device 100 to be connected, negative input end is connected with reference voltage, and the output of two comparators is connected to XOR gate
Logical operation is realized in 203 inputs, and the output of XOR gate 203 is connected to spurious error rate detection unit 204.
By above-described embodiment and preferred embodiment, high-speed serial data reaches receiving terminal by channel, due to channel
To the high frequency attenuation of signal, as a result the data of receiving terminal can cause the eye pattern for receiving end data there are serious intersymbol interference
Middle eyes closed tends to close, and receiving terminal can compensate for the decay of channel by balanced device 100, but its penalty coefficient cannot
Accurate to obtain, such receiving terminal recovered clock carries out data sampling and has very high error rate.The embodiment of the present invention passes through certainly
Adaptive compensation adjustment module obtains balanced device adjustment factor.Its realization principle is as follows：Adaptive equalization adjustment module is obtained first
In auxiliary sampling clock, which has a certain amount of phase offset, is starting
Timing, the phase very little of the off-center sampling clock of auxiliary clock, if the data after balanced device are mended well
Repay, the data of auxiliary clock sampling are consistent with the data of center sampling clock, and the output phase of two comparators is same, is patrolled by exclusive or
It is 0 to collect door output, and error code does not occur in expression, and the error code of this side is defined as auxiliary sampling clock and center sampling clock sampling
Data are inconsistent.The phase of auxiliary clock off center sampling clock is increased, at this moment if the eye pattern of balanced device output does not have
Open enough, the data that auxiliary clock and center sampling clock sampling arrive will be inconsistent, and the output of two comparators is different, and process is different
Or logic output is 1, equalizer compensation deficiency is represented, it is necessary to increase the compensation rate in balanced device.At this moment adaptive equalization is passed through
Adjustment module adjusts equalizer coefficients, and until balanced device output eye pattern is opened, auxiliary clock is consistent with center sampling clock sampling.
Continue the phase deviation of increase auxiliary clock, repeat above procedure, opened until eyes and terminate to correct enough.
Using the embodiment of the present invention, the channel compensation system can with automatic adjusument compensation circuit parameter by process deviation,
And then the purpose of adaptive equalization fading channel, while automatic adjusument can also be closed after single compensation is adjusted
Module is to save power consumption.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can pass through others
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to contribute in other words to correlation technique or all or part of the technical solution can be in the form of software products
Embody, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) performs all or part of each embodiment method of the present invention
Step.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (11)
- A kind of 1. balanced device adjusting method, it is characterised in that including：Receive the output data that the balanced device to the data by transmission export after channel compensation；Judge whether the error rate of the output data is more than or equal to error rate threshold；In the case where the judgment result is yes, the channel compensation coefficient that channel compensation is carried out to the balanced device is adjusted, directly Error rate to the output data of the balanced device is less than the error rate threshold.
- It is 2. according to the method described in claim 1, it is characterized in that, whether big in the error rate for judging the output data Before equal to the error rate threshold, further include：The output data is sent to XOR gate, obtains the exclusive or result of the output data；The error rate of the output data is determined according to the exclusive or result.
- 3. according to the method described in claim 2, it is characterized in that, the output data is sent to XOR gate, described in acquisition The exclusive or result of output data includes：The output data is sampled, obtains sampled data；Exclusive or processing is carried out to the sampled data using the XOR gate, obtains the exclusive or of the sampled data as a result, wherein, The exclusive or result of the sampled data obtained is the exclusive or result of the output data.
- 4. according to the method described in claim 3, it is characterized in that,The output data is sampled, obtaining sampled data includes：By using the first comparator of auxiliary sampling clock Sampling is carried out to the output data and obtains the first sampled data；By using the second comparator of center sampling clock to described Output data carries out sampling and obtains the second sampled data, wherein, the auxiliary sampling clock exists with the center sampling clock Predetermined phase is poor；Exclusive or processing is carried out to the sampled data using the XOR gate, obtaining the exclusive or result of the sampled data includes： By the first reference data under the first comparator first sampled data and the auxiliary sampling clock, obtain First comparative result；Pass through second under second comparator, second sampled data and the center sampling clock Reference data, obtains the second comparative result；Using the XOR gate to first comparative result and second comparative result Exclusive or processing is carried out, obtains the exclusive or result of the sampled data.
- 5. according to the method described in claim 1, it is characterized in that, the channel compensation system of channel compensation is carried out to the balanced device Number is adjusted, until the error rate of the output data of the balanced device includes less than the error rate threshold：After being adjusted the channel compensation coefficient of the balanced device, judge to carry out the data output number after channel compensation Whether reach parameter threshold according to the parameter value of corresponding eye pattern；In the case where judging result is no, increases auxiliary sampling clock and predetermined phase existing for center sampling clock is poor, directly The parameter value of the corresponding eye pattern of output data to after to data progress channel compensation reaches parameter threshold, determines described equal The error rate of the output data of weighing apparatus is less than the error rate threshold.
- A kind of 6. balanced device regulating device, it is characterised in that including：Receiving module, the output for the data by transmission export after channel compensation for receiving the balanced device Data；Whether judgment module, the error rate for judging the output data are more than or equal to error rate threshold；Module is adjusted, in the case where the judgment result is yes, the channel compensation system of channel compensation being carried out to the balanced device Number is adjusted, until the error rate of the output data of the balanced device is less than the error rate threshold.
- 7. device according to claim 6, it is characterised in that further include：XOR gate module, for obtaining the exclusive or result of the output data；Determining module, for determining the error rate of the output data according to the exclusive or result.
- 8. device according to claim 7, it is characterised in that the XOR gate module includes：Sampling unit, for being sampled to the output data, obtains sampled data；Exclusive or processing unit, for carrying out exclusive or processing to the sampled data using the XOR gate, obtains the hits According to exclusive or as a result, wherein, the exclusive or result of the sampled data of acquisition is the exclusive or result of the output data.
- 9. device according to claim 8, it is characterised in thatThe sampling unit includes：First sampling subelement, for the first comparator by using auxiliary sampling clock to institute State output data and carry out sampling the first sampled data of acquisition；Second sampling subelement, for by using center sampling clock Second comparator carries out the output data sampling and obtains the second sampled data, wherein,The auxiliary sampling clock and the center sampling clock are poor there are predetermined phase；The exclusive or processing unit includes：First comparing subunit, for being adopted by the first comparator more described first The first reference data under sample data and the auxiliary sampling clock, obtains the first comparative result；Second comparing subunit, is used for By the second reference data under second comparator, second sampled data and the center sampling clock, obtain Second comparative result；Subelement is obtained, for comparing knot to first comparative result and described second using the XOR gate Fruit carries out exclusive or processing, obtains the exclusive or result of the sampled data.
- 10. device according to claim 6, it is characterised in that the adjustment module includes：Judging unit, after being adjusted the channel compensation coefficient of the balanced device, judges to carry out channel to the data Whether the parameter value of the corresponding eye pattern of output data after compensation reaches parameter threshold；Determination unit, in the case of being no in judging result, existing for increase auxiliary sampling clock and center sampling clock Predetermined phase is poor, until the parameter value that the data are carried out with the corresponding eye pattern of output data after channel compensation reaches parameter threshold Value, determines that the error rate of the output data of the balanced device is less than the error rate threshold.
- 11. a kind of communication equipment, it is characterised in that the communication equipment is applied to equal any one of claim 1 to 5 Weighing apparatus adjusting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053223.4A CN107920038A (en) | 2017-10-31 | 2017-10-31 | Balanced device adjusting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053223.4A CN107920038A (en) | 2017-10-31 | 2017-10-31 | Balanced device adjusting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107920038A true CN107920038A (en) | 2018-04-17 |
Family
ID=61895904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711053223.4A Pending CN107920038A (en) | 2017-10-31 | 2017-10-31 | Balanced device adjusting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107920038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809719A (en) * | 2018-06-12 | 2018-11-13 | 迈普通信技术股份有限公司 | Ten thousand mbit ethernet interface inter-link methods, communication equipment and storage medium |
| CN114513393A (en) * | 2020-11-17 | 2022-05-17 | 深圳市中兴微电子技术有限公司 | Correction method of analog equalizer, control chip, receiver and storage medium |
| CN114765463A (en) * | 2020-12-30 | 2022-07-19 | 晶晨半导体(上海)股份有限公司 | Receiver and data transmission system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1500326A (en) * | 2002-01-30 | 2004-05-26 | 印芬龙科技股份有限公司 | Method for contrlling sampling phase |
| CN101692660A (en) * | 2009-09-07 | 2010-04-07 | 中兴通讯股份有限公司 | Automatic equalization device and method |
| CN102098248A (en) * | 2010-12-24 | 2011-06-15 | 合肥昊特信息科技有限公司 | High-speed transceiver with adaptive equalization capacity |
| US8791735B1 (en) * | 2013-04-03 | 2014-07-29 | Fujitsu Limited | Receiving circuit and control method of receiving circuit |
| CN104378321A (en) * | 2014-11-26 | 2015-02-25 | 英特格灵芯片(天津)有限公司 | Method and circuit for integrating adaptive equalization parameter adjusting and transmission performance testing |
-
2017
- 2017-10-31 CN CN201711053223.4A patent/CN107920038A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1500326A (en) * | 2002-01-30 | 2004-05-26 | 印芬龙科技股份有限公司 | Method for contrlling sampling phase |
| CN101692660A (en) * | 2009-09-07 | 2010-04-07 | 中兴通讯股份有限公司 | Automatic equalization device and method |
| CN102098248A (en) * | 2010-12-24 | 2011-06-15 | 合肥昊特信息科技有限公司 | High-speed transceiver with adaptive equalization capacity |
| US8791735B1 (en) * | 2013-04-03 | 2014-07-29 | Fujitsu Limited | Receiving circuit and control method of receiving circuit |
| CN104378321A (en) * | 2014-11-26 | 2015-02-25 | 英特格灵芯片(天津)有限公司 | Method and circuit for integrating adaptive equalization parameter adjusting and transmission performance testing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809719A (en) * | 2018-06-12 | 2018-11-13 | 迈普通信技术股份有限公司 | Ten thousand mbit ethernet interface inter-link methods, communication equipment and storage medium |
| CN108809719B (en) * | 2018-06-12 | 2021-05-18 | 迈普通信技术股份有限公司 | Gigabit Ethernet interface interconnection method, communication device and storage medium |
| CN114513393A (en) * | 2020-11-17 | 2022-05-17 | 深圳市中兴微电子技术有限公司 | Correction method of analog equalizer, control chip, receiver and storage medium |
| WO2022105468A1 (en) * | 2020-11-17 | 2022-05-27 | 中兴通讯股份有限公司 | Method for correcting analog equalizer, and control chip, receiver and storage medium |
| CN114765463A (en) * | 2020-12-30 | 2022-07-19 | 晶晨半导体(上海)股份有限公司 | Receiver and data transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11665028B2 (en) | Methods and circuits for adaptive equalization | |
| CN104378321B (en) | Adaptive equalization parameter adjustment, the integrated approach and circuit of transmission performance test | |
| EP2779550B1 (en) | Digital equalizer adaptation using on-die instrument | |
| CA2114214C (en) | Apparatus and method for controlling transmitted power of a modem | |
| CN107920038A (en) | Balanced device adjusting method and device | |
| US20100097087A1 (en) | Eye mapping built-in self test (bist) method and apparatus | |
| KR20060131883A (en) | System and method for automatically calibrating two-tap and multi-tap equalization for a communications link | |
| EP2451129A2 (en) | Tracking data eye operating margin for steady state adaptation | |
| US20200021468A1 (en) | Equalizer adjusting device, equalizer adjusting method, receiver, and signal transmitting and receiving system | |
| CN204206212U (en) | The circuit of adaptive equalization parameter adjustment, transmission performance test | |
| US20030165208A1 (en) | Non-linear decision feedback phase locked loop filter | |
| CN106411797A (en) | Adaptive equalization method and apparatus of receiver | |
| US7492816B1 (en) | Adaptive equalization methods and apparatus | |
| US7653127B2 (en) | Bit-edge zero forcing equalizer | |
| CN107241160A (en) | The method and apparatus for determining parameter | |
| JP2023545548A (en) | Analog equalizer correction method, control chip, receiver and storage medium | |
| CN108696466A (en) | The blind equalization detector of underwater sound communication regulatable view window mouth length | |
| CN107995135A (en) | Channel attenuation compensation system, method, circuit, storage medium and processor | |
| CN106302281A (en) | The adaptive equilibrium method of receiver and device | |
| US20040044713A1 (en) | Adaptive filter coefficient determination | |
| US20180191530A1 (en) | Backchannel transmission adaptation | |
| CN111224911A (en) | Blind equalization-based deep learning assisting method and system | |
| US11792053B2 (en) | Method of realization of adaptive equalization and adaptive equalizer | |
| US20130301696A1 (en) | Equalization of transmissions | |
| US7903727B2 (en) | Channel memory length selection method and apparatus for wireless communication systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180417 |