CN107786276B - A kind of damage compensation method and device of pluggable ACO module - Google Patents

A kind of damage compensation method and device of pluggable ACO module Download PDF

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Publication number
CN107786276B
CN107786276B CN201610753845.7A CN201610753845A CN107786276B CN 107786276 B CN107786276 B CN 107786276B CN 201610753845 A CN201610753845 A CN 201610753845A CN 107786276 B CN107786276 B CN 107786276B
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aco
module
damage
connector
line card
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CN107786276A (en
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曹攀
杨宏
马永东
熊伟
吴双元
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HAISIGUANG ELECTRONICS Co Ltd
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HAISIGUANG ELECTRONICS Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/615—Arrangements affecting the optical part of the receiver

Abstract

The invention discloses the damage compensation methods and device of a kind of pluggable ACO module.In present invention method, first slot of the first ACO module and the first line card is established before plug connection, the first damage measurement parameter is preserved in the register of first ACO module, the second damage measurement parameter is preserved in the register of first line card, i.e. the first ACO module and First Line are stuck in front of this plug is established with regard to having carried out the calibration of impairment parameter in advance, generated damage can be merged processing and be estimated by the first damage measurement parameter and the second damage measurement parameter when transmission telecommunications number between first ACO module and the first line card, the estimation of damage can be completed to be damaged calibration in advance by the first ACO module and First Line card, the application scenarios for needing often to plug suitable for ACO module, damage caused by multi-pin connector is compensated, improve the transporting of electric signal Energy.

Description

A kind of damage compensation method and device of pluggable ACO module
Technical field
The present invention relates to technical field of photo communication, more particularly to a kind of pluggable simulation coherent light (full name in English: Analog Coherent optics, English abbreviation: ACO) module damage compensation method and device.
Background technique
With the development of optical communication industry, the data capacity of optical network system carrying increases year by year, it is therefore desirable to more Optical transceiver module, for operator, the increase of number of modules can occupy more racks and increase more power consumptions, because This realizes the miniaturization of optical transceiver module and low-power consumption is very necessary.The relevant optical module in existing line side is generally larger Optical module, single line card can only place 1 to 2 optical modules, and power consumption is higher.
Fig. 1 describes digital coherent light (full name in English: Digital Coherent Optics, English letter in the prior art Claim: DCO) optical module transmission characteristic, micro control unit (full name in English: Microcontroller Unit, English abbreviation: MCU) It is the control unit of optical module, the data transmission procedure of DCO optical module are as follows: optical module will be from framing (English name: Framer) The multi-channel service data that chip issues pass through parallel series and staticizer (full name in English: SERializer- DESerializer, English abbreviation: SERDES) via the interface of 168 pins (English name: PIN) connector it is transferred to ODSP The receiving end of chip, SERDES can pass through clock and data recovery (full name in English: Clock Data Recovery, English letter Claiming: CDR) operation recovery goes out business datum, and ODSP chip passes through digital-to-analogue conversion (full name in English: Digital to Analog again Conversion, English abbreviation: DAC) by the business datum recovered issue, electric signal amplified by radio frequency amplifier after through toning Device processed is modulated onto area of light, then is exported by transmitting terminal (full name in English: Transmitter, English abbreviation: the Tx) interface of optical fiber Optical signal, to realize the transmission of business datum.
The DRP data reception process of DOC optical module are as follows: optical signal passes through receiving end (full name in English: Receiver, English letter Claiming: Rx) interface enters optical module, pass through integrated coherent receiver (full name in English: Integrated Coherent Receiver, English abbreviation: ICR) and local oscillator light source be converted into electric signal, electric signal after the processing of ODSP chip, Then electric signal is issued from SERDES, enters Framer chip via 168PIN connector, the CDR module in Framer chip can To realize the recovery of clock and data service, to realize the reception of signal.
Under both scenes of the data transmission and reception of above-mentioned DOC optical module, signal impairment caused by connector can be with Effective compensation is carried out by CDR module, therefore apparent performance cost will not be introduced.Line side coherent light in actual use simultaneously Module will not be replaced after being fixed on line card, therefore by caused by measuring compensated these damages later inside the optical module in advance Performance cost.
As line side is concerned with urgent need of the optical module to small size and low-power consumption, this requires pass through lifting process water Size that is flat, reducing photoelectric device using new material and new design scheme and the power consumption for reducing device, to realize single line More optical modules can be placed and be supported to card.In order to allow single line card to place more optical modules, the pluggable (English of C-shaped Literary full name: C Form-factor Pluggable, English abbreviation: CFP), volume only accounts for the CFP2 of CFP half, volume only accounts for The forms such as the CFP4 of CFP a quarter become the fresh target of the relevant optical module in line side, these optical modules require smaller size With lower power consumption, while require to meet optical interconnection forum (full name in English: Optical Internetworking Forum, English abbreviation: OIF) or multi-source agreement (full name in English: Multi Source Agreement, English abbreviation: MSA) standard regulation Form-factor and power consumption.Light Digital Signal Processing (the full name in English: Optical in optical module simultaneously because line side is concerned with Digital Signal Processing, English abbreviation: ODSP) power consumption it is larger, therefore be born by the high ODSP of power consumption from The solution being transferred in optical module on single line card, to propose the component form of CFPx-ACO, that is, simulation phase Dry optical module.The mainstream module that current stage is researching and developing includes: CFP2-ACO module, and the goal in research of next stage includes: CFP4-ACO module and CFP8-ACO module.
Next the transmission characteristic that ACO is introduced in optical module is illustrated.As shown in Fig. 2, for using CFPx- The application scenarios of ACO module.Fig. 2 describes the scene of CFPx-ACO module in actual use, it can be seen that uses CFPx- The maximum difference of ACO module and DCO optical module is that ODSP is located on line card not inside optical module.Meet MSA and OIF Defined ACO module can be placed in the different slot positions of different line cards.Under scene shown in Fig. 2, CFPx-ACO module Signal transmission process are as follows:
ODSP is by the analog signal of multichannel (such as can be the single-ended signal on 4 tunnels, or be the differential signal on 8 tunnels) high speed (usually more than 30 gigabit bauds (English name: Gbaud)) is sent to ACO module corresponding with it by CFPx connector, After ACO module amplifies the multi-channel electric signal received, then area of light is transferred to by electrooptic modulator, believed light by Tx interface Number launch.
The process of CFPx-ACO module reception signal are as follows: optical signal enters receiver by Rx interface, after being handled by ICR It obtains multi-channel electric signal (the usually single-ended signal on 4 tunnels, or the differential signal for 8 tunnels), electric signal passes through the CFPx in Fig. 2 Connector enters ODSP chip, and then ODSP chip recovers corresponding data by Digital Signal Processing, to realize The receive process of signal.
By foregoing description it is found that DCO optical module is mainly by the hair for realizing signal after the measurement in advance for sending end signal The damage of sending end and receiving end compensates, this process occurs inside optical module.Optical module and outside pass through multi-pin connector (such as Interface 168PIN) carries out the communication of digital signal, this signal baud rate is relatively low (usually 10Gbaud or so), and Receiving end has CDR module to can be used for restoring data, therefore the damage that connector introduces does not influence whole system substantially.
But when using CFPx-ACO module, system can be had the following problems: 1) mould of high speed (such as 30Gbaud) Quasi- signal passes through CFPx connector, can introduce damage, and can be used for compensating these damages without CDR module；2) due to actually making It is pluggable with middle CFPx-ACO module, therefore different optical module and different line card slot positions are arranged in pairs or groups when can introduce Damage also have a greater change, therefore can not in ODSP compensation system damage.
Summary of the invention
The embodiment of the invention provides the damage compensation methods and device of a kind of pluggable ACO module, for multi-pipe pin Damage caused by connector compensates, and improves the transmission performance of electric signal.
In order to solve the above technical problems, the embodiment of the present invention the following technical schemes are provided:
In a first aspect, in the damage compensation method of pluggable ACO module provided in an embodiment of the present invention, the first ACO module Before establishing plug connection with the first slot of the first line card, the first damage has been preserved in the register of the first ACO module Measurement parameter has preserved the second damage measurement parameter, i.e. the first ACO module and the first line card in the register of the first line card It is passed before this plug is established with regard to having carried out the calibration of impairment parameter in advance, therefore between the first ACO module and the first line card The damage generated when power transmission signal can by first damage measurement parameter and second damage measurement parameter merge handle into Row estimation, the total impairment value of connector for needing to compensate when the damage assessment result of generation can be used for calculating electric signal transmission should The total impairment value of connector is the effective foundation for carrying out signal impairment compensation, to be carried out by the first ACO module and First Line card Damage calibration in advance can complete the estimation of damage, therefore not need to use CDR module as DCO module, be suitable for ACO The application scenarios that module needs often to plug compensate damage caused by multi-pin connector, improve the transmission of electric signal Performance.
With reference to first aspect, in the first possible implementation of the first aspect, the second multi-pin connector connects There is the corresponding 2nd ODSP chip of the second line card, it is right when the first ACO module is inserted on corresponding second slot of the second line card Electric signal is carried out by being connected with the second multi-pin connector of the 2nd ODSP chip when first ACO module is inserted on the second slot Generated connector impairment value measures to obtain the first damage measurement parameter when transmission, damages measurement parameter for first It stores into the register of the first ACO module.In an embodiment of the present invention, the second line card is inserted by the first ACO module On-the-spot test then available first damage measurement parameter was carried out when upper, so as to which the first damage measurement parameter to be saved in In the register of first ACO module, thus after the first ACO module is pulled out from the second line card, the deposit of the first ACO module Still the first damage measurement parameter obtained by test calibration is preserved in device.
The possible implementation of with reference to first aspect the first, in second of possible implementation of first aspect In, when the first ACO module is inserted on corresponding second slot of the second line card, to the 2nd ODSP chip by being connected with first Generated connector impairment value measures to obtain when the second multi-pin connector progress electric signal transmission of ACO module Third damages measurement parameter, by third damage measurement parameter storage into the register of the second line card.In embodiments of the present invention, Then on-the-spot test is carried out when being inserted on the second line card by the first ACO module can also obtain third damage measurement parameter, So as to which third damage measurement parameter to be saved in the register of the second line card, so that the first ACO module is from the second line card On pull out after, the third obtained by test calibration is still preserved in the register of second line card and damages measurement parameter, To which third damage can also be got when being inserted into other ACO modules on second line card by the register of the second line card Measurement parameter, therefore can be adapted for the estimation when plugging ACO module on the second line card to connector damage.
With reference to first aspect, in a third possible implementation of the first aspect, the first ACO module is inserted into Before on corresponding first slot of one line card, the 2nd ACO module is inserted on corresponding first slot of the first line card；To first Generated connector when ODSP chip carries out electric signal transmission by being connected with the first multi-pin connector of the 2nd ACO module Impairment value measures to obtain the second damage measurement parameter, by the deposit of the second damage measurement parameter storage to the first line card In device.In embodiments of the present invention, on-the-spot test is carried out when being inserted on the first line card by the 2nd ACO module then can be with The second damage measurement parameter is obtained, so as to which the second damage measurement parameter is saved in the register of the first line card, thus After 2nd ACO module is pulled out from the first line card, still preserves in the register of first line card and obtained by test calibration The the second damage measurement parameter arrived, thus when being inserted into other ACO modules (such as the first ACO module) on first line card The second damage measurement parameter can be got by the register of the first line card, therefore can be adapted for plugging on the first line card To the estimation of connector damage when ACO module.
The third possible implementation with reference to first aspect, in the 4th kind of possible implementation of first aspect In, when the 2nd ACO module is inserted on corresponding first slot of the first line card, the 2nd ACO module is inserted on the first slot When carrying out electric signal transmission by being connected with the first multi-pin connector of the first ODSP chip generated connector damage Value measures to obtain the 4th damage measurement parameter, by the deposit of the 4th damage measurement parameter storage to the 2nd ACO module In device.In embodiments of the present invention, then on-the-spot test is carried out when being inserted on the first line card by the 2nd ACO module can obtain To the 4th damage measurement parameter, so as to which the 4th damage measurement parameter is saved in the register of the 2nd ACO module, thus After 2nd ACO module is pulled out from the first line card, is still preserved in the register of the 2nd ACO module and pass through test calibration The 4th obtained damage measurement parameter, so that the 2nd ACO module can also be by the 2nd ACO mould when being inserted into other line cards The register of block gets the 4th damage measurement parameter, therefore can be adapted for when the 2nd ACO module is inserted into other line cards pair The estimation of connector damage.
With reference to first aspect or first aspect the first may second may or the third may or the 4th kind can The implementation of energy, in the fifth possible implementation of the first aspect, connector impairment value includes in following information It is at least one: the propagation time delay of electric signal, forward direction transmission coefficient S21 filtering characteristic, electric signal amplitude fading.It is wherein electric The propagation time delay of signal is properly termed as " Skew caused by connector ", when passing through multitube between ACO module and ODSP chip Foot connector can generate the damage of Skew, S21 filtering characteristic because of multi-pin connector when carrying out electric signal transmission, can also generate The amplitude fading of electric signal, therefore the compensation calculation of damage measurement can be carried out according to method provided in an embodiment of the present invention, from And determine the connector for needing to compensate when carrying out electric signal transmission by multi-pin connector between ACO module and ODSP chip Total impairment value, it is different for the concrete type of connector impairment value in the embodiment of the present invention, need to be attached device damage compensation Also not identical.
The 5th kind of possible implementation with reference to first aspect, in the 6th kind of possible implementation of first aspect In, it is obtained according to damage assessment result and is carried out between the first ODSP chip and the first ACO module by the first multi-pin connector After the total impairment value of connector for needing to compensate when electric signal transmission, when the first ODSP chip and the first ACO module pass through first It includes the propagation time delay and forward direction of electric signal that the connector total impairment value compensated is needed when pin connector transmission telecommunications number When transmission coefficient S21 filtering characteristic, the first ODSP chip and the first ACO module are passed through into the first pin connector transmission telecommunications number When need the total impairment value of connector that compensates to be sent to the first ODSP chip, by the first ODSP chip compensation electric signal transmission when Between delay and S21 filtering characteristic；When the first ODSP chip and the first ACO module pass through the first pin connector transmission telecommunications number When the total impairment value of the connector for needing to compensate includes the amplitude fading of electric signal, according to the first ODSP chip and the first ACO module It is put by the radio frequency for needing the total impairment value of the connector compensated to adjust the first ACO module when the first pin connector transmission telecommunications number Big device gain and trans-impedance amplifier TIA gain.
In embodiments of the present invention, different for the concrete type of connector impairment value, the compensation way for needing to take It is different.Specifically, getting propagation time delay and the S21 filter for needing the total impairment value of connector compensated to include electric signal When wave property, Skew and S21 filtering characteristic can be compensated by the first ODSP chip, it is total to get the connector for needing to compensate When impairment value includes the amplitude fading of electric signal, it can be mended by the gain of radio frequency amplifier and TIA in the first ACO module Repay the amplitude fading of electric signal, specific compensation rate can be determined with connected applications scene.
Second aspect, the embodiment of the present invention also provide a kind of damage compensation device of pluggable ACO module, comprising: plug Controller, parameter reader and damage compensation estimator, wherein swap controller, for the first ACO module to be inserted into first On corresponding first slot of line card, the first ACO module is that the is inserted into after pulling out from corresponding second slot of the second line card On one slot, when the first ACO module is inserted on the first slot, the first ACO module and corresponding first multi-pipe pin of the first line card Connector is connected, and the first multi-pin connector is connected with the corresponding first smooth Digital Signal Processing ODSP chip of the first line card, When the first ACO module is inserted on the second slot, the first ACO module the second multi-pin connector corresponding with the second line card is connected It connects；Parameter reader, for getting the first damage measurement parameter from the register of the first ACO module, wherein the first damage Measurement parameter is when the first ACO module is inserted on the second slot, by carrying out electric signal transmission to the second multi-pin connector When generated connector impairment value measure after obtained damage measurement parameter；Parameter reader is also used to from First Line Got in the register of card corresponding to the first slot second damage measurement parameter, wherein second damage measurement parameter be Generated connector impairment value measures when first ODSP chip is by the first multi-pin connector progress electric signal transmission The damage measurement parameter obtained afterwards；Compensation estimator is damaged, for the first damage measurement parameter and the second damage measurement parameter Processing is merged to obtain damage assessment as a result, obtaining the first ODSP chip and the first ACO mould according to damage assessment result The total impairment value of connector for needing to compensate when carrying out electric signal transmission by the first multi-pin connector between block.
In embodiments of the present invention, the first slot of the first ACO module and the first line card is established before plug connection, and first The first damage measurement parameter has been preserved in the register of ACO module, has preserved second in the register of the first line card Measurement parameter is damaged, i.e. the first ACO module and First Line is stuck in front of this plug is established with regard to having carried out impairment parameter in advance Calibration, therefore the damage generated when transmission telecommunications number between the first ACO module and the first line card can be measured by the first damage Parameter and the second damage measurement parameter merge processing and are estimated, the damage assessment result of generation can be used for calculating telecommunications Need connector total impairment value for compensating when number transmission, the total impairment value of the connector be carry out signal impairment compensation it is effective according to According to therefore being not required to so that the estimation of damage can be completed by being damaged calibration in advance by the first ACO module and First Line card CDR module is used as DCO module, suitable for the application scenarios that ACO module needs often to plug, to multi-pin connector Caused damage compensates, and improves the transmission performance of electric signal.
In the second aspect of the present invention, the comprising modules of the damage compensation device of pluggable ACO module can also be performed The step of described in aforementioned first aspect and various possible implementations, be detailed in it is aforementioned to first aspect and it is various can Explanation in the implementation of energy.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those skilled in the art, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of a scenario that DCO optical module and line card are used cooperatively in the prior art；
Fig. 2 is the application scenarios schematic diagram in optical module in the prior art using CFPx-ACO module；
Fig. 3-a is the application that the first ACO module provided in an embodiment of the present invention is inserted into that the second line card carries out test calibration Schematic diagram of a scenario；
Fig. 3-b is that the first ACO module provided in an embodiment of the present invention is inserted into the progress actual signal transmission of First Line card Application scenarios schematic diagram；
Fig. 4 is a kind of process blocks signal of damage compensation method of pluggable ACO module provided in an embodiment of the present invention Figure；
Fig. 5 is the S21 curve synoptic diagram of the transmitting terminal provided in an embodiment of the present invention for having connectorless；
Fig. 6 is the error rate of system schematic diagram of transmitting terminal Skew provided in an embodiment of the present invention and S21 difference；
Fig. 7 is the cable clip structure schematic diagram provided in an embodiment of the present invention inserted with ACO module；
Fig. 8 is line card CPU provided in an embodiment of the present invention by the originator and receipts of CFP2-ACO module and line card CFP2 slot The Skew at end is overlapped to obtain the Skew schematic diagram of ODSP compensation；
Fig. 9-a is the amplitude-frequency for the S21 that line card CPU provided in an embodiment of the present invention arrives CFP2-ACO module and CFP2 slot The compensating parameter that response is overlapped generation respectively is issued to the performance cost signal introduced in ODSP for compensating originator S21 Figure；
Fig. 9-b is the phase frequency for the S21 that line card CPU provided in an embodiment of the present invention arrives CFP2-ACO module and CFP2 slot The compensating parameter that response is overlapped generation respectively is issued to the performance cost signal introduced in ODSP for compensating originator S21 Figure；
Figure 10 is the performance comparison schematic diagram of accurate compensation provided in an embodiment of the present invention and blind compensation；
Figure 11-a is that a kind of composed structure of the damage compensation device of pluggable ACO module provided in an embodiment of the present invention is shown It is intended to；
Figure 11-b is the composed structure of the damage compensation device of the pluggable ACO module of another kind provided in an embodiment of the present invention Schematic diagram；
Figure 11-c is the composed structure of the damage compensation device of the pluggable ACO module of another kind provided in an embodiment of the present invention Schematic diagram；
Figure 11-d is the composed structure of the damage compensation device of the pluggable ACO module of another kind provided in an embodiment of the present invention Schematic diagram.
Specific embodiment
The embodiment of the invention provides the damage compensation methods and device of a kind of pluggable ACO module, for multi-pipe pin Damage caused by connector compensates, and improves the transmission performance of electric signal.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below Embodiment be only a part of the embodiment of the present invention, and not all embodiments.Based on the embodiments of the present invention, this field Technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing Similar object, without being used to describe a particular order or precedence order.It should be understood that the term used in this way is in appropriate feelings It can be interchanged under condition, this is only to describe the used differentiation in description to the object of same alike result in the embodiment of the present invention Mode.In addition, term " includes " and " having " and their any deformation, it is intended that cover it is non-exclusive include, so as to A series of process, method, system, product or equipment comprising units are not necessarily limited to those units, but may include unclear Other units that ground is listed or intrinsic for these process, methods, product or equipment.
It is described in detail separately below.One embodiment of the damage compensation method of the pluggable ACO module of the present invention, can Applied to the application scenarios for using CFPx-ACO module to realize in optical module shown in Fig. 2, with CFPx- in the embodiment of the present invention For ACO module is specially the first ACO module, the first ACO module is inserted into the first line card under pluggable application scenarios The connector damage of upper generation measures estimation.It please refers to shown in Fig. 3-a and Fig. 3-b, Fig. 3-a provides for the embodiment of the present invention The first ACO module be inserted into the application scenarios schematic diagram that the second line card carries out test calibration, Fig. 3-b mentions for the embodiment of the present invention The first ACO module supplied is inserted into the application scenarios schematic diagram that First Line card carries out actual signal transmission.It please refers to shown in Fig. 4, The damage compensation method of pluggable ACO module provided by one embodiment of the present invention may include:
401, the first ACO module is inserted on corresponding first slot of the first line card.
Wherein, the first ACO module is inserted on the first slot after pulling out from corresponding second slot of the second line card, When the first ACO module is inserted on the first slot, corresponding first multi-pin connector of the first the first line card of ACO module is connected It connects, the first multi-pin connector is connected with the corresponding first ODSP chip of the first line card, when the first ACO module is inserted in the second slot When upper, corresponding second multi-pin connector of the first the second line card of ACO module is connected.
In embodiments of the present invention, first as shown in Fig. 3-a, the second multi-pin connector is provided on the second line card, the Two ODSP chips are connected by the second multi-pin connector and the first ACO module, are additionally provided with MCU in the first ACO module.This The first line card can be inserted after pulling out from the second line card in one ACO module, and as shown in Fig. 3-b, the is provided on the first line card One multi-pin connector, the first ODSP chip are connected by the first multi-pin connector and the first ACO module, the first ACO module On be additionally provided with MCU.It should be noted that the second line card passes through the second multi-pin connector and first in the embodiment of the present invention ACO module is connected, which can be line card standard component, which is also possible to adopt when test connector damage Public line card, multiple ACO modules can be inserted into the enterprising trip link actuator damage measure of the second line card.
402, the first damage measurement parameter is got from the register of the first ACO module.
Wherein, the first damage measurement parameter is to be connected when the first ACO module is inserted on the second slot by the second multi-pipe pin When connecing device and carrying out electric signal transmission, damage measurement parameter that the connector impairment value of generation obtains after measuring.
In embodiments of the present invention, the first ACO module is first inserted into the second slot of the second line card, then pulls out from the second line card After falling, the first ACO module is just inserted into the first slot of the first line card, is stored in the register of the first ACO module First damage measurement parameter, which is when the first ACO module is inserted on the second slot, more than second When pin connector carries out electric signal transmission, the damage measurement parameter that the connector impairment value of generation obtains after measuring should First damage measurement parameter is stored in the register of the first ACO module, when to be inserted into the first line card corresponding for the first ACO module After on first slot, the central processing unit (full name in English: Central Processing Unit, English letter of the first line card Claim: CPU) measurement parameter can be damaged to first by the register read of the first ACO module.Wherein, the first damage measurement ginseng Number can be saved in the register of the first ACO module by preconfigured mode, can also be inserted by the first ACO module It carries out on-the-spot test when on the second line card to be then saved in the register of the first ACO module, herein without limitation.
In some embodiments of the invention, the second multi-pin connector is connected with the corresponding 2nd ODSP core of the second line card Piece, method provided in an embodiment of the present invention is in addition to that can also include the following steps: before executing abovementioned steps
A1, when the first ACO module is inserted on corresponding second slot of the second line card, is inserted in the first ACO module It is generated when carrying out electric signal transmission by being connected with the second multi-pin connector of the 2nd ODSP chip when on two slots to connect It connects device impairment value to measure to obtain the first damage measurement parameter, by the first damage measurement parameter storage to the first ACO mould In the register of block.
Wherein, in some embodiments of the invention, scene is carried out when being inserted on the second line card by the first ACO module Then test available first damages measurement parameter, so as to which the first damage measurement parameter is saved in the first ACO module Register in, to still be protected in the register of the first ACO module after the first ACO module is pulled out from the second line card There is the first damage measurement parameter obtained by test calibration.
In some embodiments of the invention, the first ACO module is inserted into the first line card corresponding first and inserted by step 401 Before on slot, method provided in an embodiment of the present invention is in addition to that can also include the following steps: before executing abovementioned steps
B1, the 2nd ACO module is inserted on corresponding first slot of the first line card；
B2, electric signal biography is carried out by being connected with the first multi-pin connector of the 2nd ACO module to the first ODSP chip Generated connector impairment value measures to obtain the second damage measurement parameter when defeated, and the second damage measurement parameter is deposited It stores up into the register of the first line card.
Wherein, in some embodiments of the invention, scene is carried out when being inserted on the first line card by the 2nd ACO module Then test can also obtain the second damage measurement parameter, so as to which the second damage measurement parameter is saved in the first line card In register, to still be preserved after the 2nd ACO module is pulled out from the first line card, in the register of first line card logical The second damage measurement parameter that test calibration obtains is crossed, to be inserted into other ACO modules (such as first on first line card ACO module) when the second damage measurement parameter can also be got by the register of the first line card, therefore can be adapted for Estimation when plugging ACO module on one line card to connector damage.
In some embodiments of the invention, under the aforementioned realization scene for executing step B1 to B2, the embodiment of the present invention The method of offer is in addition to that can also include the following steps: before executing abovementioned steps
B3, when the 2nd ACO module is inserted on corresponding first slot of the first line card, is inserted in the 2nd ACO module It is generated when carrying out electric signal transmission by being connected with the first multi-pin connector of the first ODSP chip when on one slot to connect It connects device impairment value to measure to obtain the 4th damage measurement parameter, by the 4th damage measurement parameter storage to the 2nd ACO mould In the register of block.
Wherein, in some embodiments of the invention, scene is carried out when being inserted on the first line card by the 2nd ACO module Then test the available 4th damages measurement parameter, so as to which the 4th damage measurement parameter is saved in the 2nd ACO module Register in, to still be protected in the register of the 2nd ACO module after the 2nd ACO module is pulled out from the first line card There is the 4th damage measurement parameter obtained by test calibration, thus when the 2nd ACO module is inserted into other line cards The 4th damage measurement parameter can be got by the register of the 2nd ACO module, therefore be can be adapted for the 2nd ACO module and inserted To the estimation of connector damage when entering to other line cards.
In some embodiments of the invention, the second multi-pin connector is connected with the corresponding 2nd ODSP core of the second line card Piece, under the aforementioned realization scene for executing step A1, method provided in an embodiment of the present invention is in addition to going back before executing abovementioned steps It may include steps of:
A2, when the first ACO module is inserted on corresponding second slot of the second line card, company is passed through to the 2nd ODSP chip Generated connector impairment value measures when being connected to the second multi-pin connector progress electric signal transmission of the first ACO module To obtain third damage measurement parameter, by third damage measurement parameter storage into the register of the second line card.
Wherein, in some embodiments of the invention, scene is carried out when being inserted on the second line card by the first ACO module Then test can also obtain third damage measurement parameter, so as to which third damage measurement parameter is saved in the second line card In register, to still be preserved after the first ACO module is pulled out from the second line card, in the register of second line card logical The third damage measurement parameter that test calibration obtains is crossed, thus can also be with when being inserted into other ACO modules on second line card Third is got by the register of the second line card and damages measurement parameter, therefore can be adapted for plugging ACO on the second line card To the estimation of connector damage when module.
403, it is got from the register of the first line card and damages measurement parameter corresponding to the second of the first slot.
Wherein, the second damage measurement parameter is to carry out electric signal biography by the first multi-pin connector in the first ODSP chip When defeated, damage measurement parameter that the connector impairment value of generation obtains after measuring.
It in embodiments of the present invention, can also be inserted with others on the first line card before being inserted into the first ACO module ACO module, for ease of description, be defined as the 2nd ACO module, then what the 2nd ACO module was first inserted into the first line card first inserts Slot, then after the 2nd ACO module is pulled out from the first line card, the first ACO module is just inserted into the first slot of the first line card, So the second damage is stored in the register of first line card when on the first slot of the first line card inserted with the 2nd ACO module Hurt measurement parameter, which is to carry out electric signal biography by the first multi-pin connector in the first ODSP chip When defeated, the damage measurement parameter that the connector impairment value of generation obtains after measuring, the second damage measurement parameter is stored in In the register of first line card, after the first ACO module is inserted on corresponding first slot of the first line card, the first line card CPU can damage measurement parameter to second by the register read of the first line card.Wherein, the second damage measurement parameter can lead to The register that preconfigured mode is saved in the first line card is crossed, can also be inserted on the first line card by the 2nd ACO module Then Shi Jinhang on-the-spot test is saved in the register of the first line card, herein without limitation.
It should be noted that can first carry out step 402 after step 401 execution executes step 403 again, it can also be first It executes step 403 and executes step 402 again, or be performed simultaneously step 402 and step 403, it is herein without limitation, shown in Fig. 4 It is described in detail for first carrying out step 402 and executing step 403 again in embodiment.
In the embodiment of the present invention, the first line card and the first ACO module respectively have the register for storage, then One line card and the first ACO module are established before plug connection, and the first line card and the first ACO module have been stored with respective respectively Measurement parameter is damaged, therefore can be posted respectively by respective after the first line card and the first ACO module establish plug connection Storage gets the first damage measurement parameter and the second damage measurement parameter.
404, processing is merged to obtain damage assessment to the first damage measurement parameter and the second damage measurement parameter As a result, according to damage assessment result obtain between the first ODSP chip and the first ACO module by the first multi-pin connector into The total impairment value of connector for needing to compensate when horizontal electrical signal transmits.
In embodiments of the present invention, the number by being stored in the register of the first ACO module and the register of the first line card According to that can extract the first damage measurement parameter and the second damage measurement parameter respectively, the two damage measurement parameters can pass through CPU in first ACO module reads register to get, and merges respectively further according to the concrete type of damage measurement parameter Processing, so as to obtain damage assessment as a result, obtaining the first ODSP by way of calculating further according to the damage assessment result The connector compensated is needed always to damage when carrying out electric signal transmission by the first multi-pin connector between chip and the first ACO module Wound value, the total impairment value of the connector be according to damage assessment result it is calculated when the first ODSP chip and the first ACO module it Between need the impairment value that compensates when carrying out electric signal transmission by the first multi-pin connector.
In some embodiments of the invention, connector impairment value can specifically include at least one of following information: The propagation time delay of electric signal, forward direction transmission coefficient S21 filtering characteristic, electric signal amplitude fading.The wherein biography of electric signal Defeated time delay is properly termed as " Skew caused by connector ", when passing through multi-pin connector between ACO module and ODSP chip The damage that Skew, S21 filtering characteristic can be generated when carrying out electric signal transmission because of multi-pin connector, can also generate electric signal Amplitude fading, therefore the compensation calculation of damage measurement can be carried out according to method provided in an embodiment of the present invention, so that it is determined that The connector compensated is needed always to damage when carrying out electric signal transmission by multi-pin connector between ACO module and ODSP chip It is worth, it is different for the concrete type of connector impairment value in the embodiment of the present invention, it needs to be attached device damage and compensates also not phase Together, the illustration being detailed in subsequent embodiment.Under practical application scene, connector impairment value can also be according to concrete scene To determine type of impairment that needs measure.
Further, in some embodiments of the invention, step 404 obtains the first ODSP core according to damage assessment result The connector compensated is needed always to damage when carrying out electric signal transmission by the first multi-pin connector between piece and the first ACO module After value, method provided in an embodiment of the present invention is in addition to that can also include the following steps: before executing abovementioned steps
C1, it needs to compensate when the first ODSP chip and the first ACO module pass through the first pin connector transmission telecommunications number Connector total impairment value when including the propagation time delay and positive transmission coefficient S21 filtering characteristic of electric signal, by first The total impairment value hair of the connector that ODSP chip and the first ACO module need to compensate when passing through the first pin connector transmission telecommunications number The first ODSP chip is given, by the propagation time delay and S21 filtering characteristic of the first ODSP chip compensation electric signal；
C2, it needs to compensate when the first ODSP chip and the first ACO module pass through the first pin connector transmission telecommunications number Connector total impairment value when including the amplitude fading of electric signal, pass through first according to the first ODSP chip and the first ACO module The total impairment value of the connector for needing to compensate when pin connector transmission telecommunications number adjusts the radio-frequency amplifier gain of the first ACO module With trans-impedance amplifier (full name in English: Transient impendence amplifier, English abbreviation: TIA) gain.
Wherein, in some embodiments of the invention, step C1 and step C2 describes how to be attached device impairment value Compensation, the compensation way that in the embodiment of the present invention needs take also not phase different for the concrete type of connector impairment value With.Specifically, getting the propagation time delay for needing the total impairment value of connector compensated to include electric signal by step 404 When with S21 filtering characteristic, Skew and S21 filtering characteristic can be compensated by the first ODSP chip, be got by step 404 When the total impairment value of the connector for needing to compensate includes the amplitude fading of electric signal, it can be put by the radio frequency in the first ACO module The gain of big device and TIA compensates the amplitude fading of electric signal, and specific compensation rate can be determined with connected applications scene.
By previous embodiment to illustration of the invention it is found that the first slot of the first ACO module and the first line card It establishes before plug connection, the first damage measurement parameter has been preserved in the register of the first ACO module, the first line card is posted The second damage measurement parameter is preserved in storage, i.e. the first ACO module and First Line is stuck in front of this plug is established just The calibration of impairment parameter has been carried out in advance, therefore generated damage when transmission telecommunications number between the first ACO module and the first line card Wound can be merged processing and be estimated by the first damage measurement parameter and the second damage measurement parameter, and the damage of generation is estimated The total impairment value of connector that meter result needs to compensate when can be used for calculating electric signal transmission, the total impairment value of the connector are to carry out Effective foundation of signal impairment compensation, so that being damaged calibration in advance by the first ACO module and First Line card can be complete It at the estimation of damage, therefore does not need to use CDR module as DCO module, be answered suitable for what ACO module needed often to plug With scene, damage caused by multi-pin connector is compensated, the transmission performance of electric signal is improved.
In order to facilitate a better understanding and implementation of the above scheme of the embodiment of the present invention, corresponding application scenarios of illustrating below come It is specifically described.In the embodiment of the present invention by ACO module 1, ACO module 2 and line card 1, line card 2 test calibration for into Row explanation, ACO module 1 are demarcated to obtain this ACO module to multi-pipe pin company by the standard component demarcated for ACO module parameter The compensating parameter one for connecing device, is stored in the register of ACO module 1, and ACO module 2 passes through the standard demarcated for ACO module parameter Part is demarcated to obtain this ACO module to the compensating parameter two of multi-pin connector, is stored in the register of ACO module 2, line card 1 xth slot by the standard component demarcated for line card ODSP chip parameter demarcated to obtain this multi-pin connector to pair The compensating parameter three for answering ODSP chip module, is stored in the register of line card 1, and the y slot of line card 2 is by being used for line card ODSP The standard component of chip parameter calibration is demarcated to obtain this multi-pin connector to the compensating parameter four of correspondence ODSP chip module, It is stored in the register of line card 2.
When the xth slot that ACO module 1 is inserted into line card 1, line card 1 reads the compensating parameter one and storage of ACO module 1 Compensating parameter three, by Combined Treatment and calculate compensating parameter one and three, obtain need for compensate combine after system first Total compensating parameter goes compensation skew and frequency to ring according to the corresponding ODSP chip parameter of the xth slot of this parameter de-regulation line card 1 It answers, while being gone to control the electric radio frequency amplifier (driver) of ACO module 1 and across a group amplifier (TIA) according to this total compensating parameter Gain go compensation electric signal decaying.
When the y slot that ACO module 1 is inserted into line card 2, line card 2 reads the compensating parameter one and storage of ACO module 1 Compensating parameter four, by Combined Treatment and calculate compensating parameter one and four, obtain need for compensate combine after system second Total compensating parameter goes compensation skew and frequency to ring according to the corresponding ODSP chip parameter of y slot of this parameter de-regulation line card 2 It answers, while being gone to control the electric radio frequency amplifier (driver) of ACO module 1 and across a group amplifier (TIA) according to this total compensating parameter Gain go compensation electric signal decaying.
When the xth slot that ACO module 2 is inserted into line card 1, line card 1 reads the compensating parameter two and storage of ACO module 2 Compensating parameter three by Combined Treatment and calculates compensating parameter two and three, obtains the third that needs are used to compensate system after combination Total compensating parameter goes compensation skew and frequency to ring according to this corresponding ODSP chip parameter of 1 xth slot of parameter de-regulation line card It answers, while being gone to control the electric radio frequency amplifier (driver) of ACO module 2 and across a group amplifier (TIA) according to this total compensating parameter Gain go compensation electric signal decaying.
When the y slot that ACO module 2 is inserted into line card 2, line card reads the compensating parameter two of ACO module 2 and the benefit of storage Repay parameter four, by Combined Treatment and calculate compensating parameter two and four, obtain need for compensate combination after system the 4th always Compensating parameter goes compensation skew and frequency to ring according to the corresponding ODSP chip parameter of y slot of this parameter de-regulation line card 2 It answers, while being gone to control the electric radio frequency amplifier (driver) of ACO module 2 and across a group amplifier (TIA) according to this total compensating parameter Gain go compensation electric signal decaying.
The performance cost of this compensation scheme provided through the embodiment of the present invention, system plug can be minimum.ACO module and The slot of line card is calibrated with standard component, mutually when plug, the correspondence slot of line card read module parameter coordination itself calibration Characteristic obtain total damage compensating parameter, go to compensate by this parameter.
As shown in figure 5, Fig. 5 is the S21 curve synoptic diagram of the transmitting terminal provided in an embodiment of the present invention for having connectorless, figure 5 give the S21 curve of actual test started using the optical module of different photoelectric devices and connector scheme, it can be seen that Whether S21 curve using multi-pin connector can have biggish difference with the transmitting terminal of optical module.As shown in fig. 6, being this hair The error rate of system schematic diagram for transmitting terminal Skew and the S21 difference that bright embodiment provides.Fig. 6 gives when the light containing connector When the originator of module uses 200G-16QAM pattern, accurate Skew and S21 compensation is carried out, according to the connector that has in Fig. 6 The parameter of S21 curve goes to compensate, and obtained performance is the performance that originator compensates entirely, while testing and Skew and use is added in originator The bit error performance that the S21 of connectorless goes compensation to start.When Skew is from when increasing to 3ps for 1 picosecond (picosecond ps) It can be seen that bit error performance is gradually deteriorated, while it can be seen that S21 compensation inaccuracy can also introduce biggish performance cost, Fig. 6 In originator do not mend generated S21 curve when connector S21 refers to transmitting terminal without using connector.
The embodiment of the present invention proposes a kind of damage compensation scheme of pluggable ACO module, and detailed process is to may include Following steps:
It 1, (is respectively 8 when differential signal by the originator of ACO module to connector (CFPx connector public affairs mouth) and each 4 tunnel of receiving end Road) Skew, S21 filter curve and amplitude fading tested and demarcated, and will damage measurement parameter be stored in CFPx-ACO mould In the readable calibration register of block, OIF standard has reserved corresponding register, and line card and module respectively have posting for storage Storage.
2, each 4 tunnel of originator and receiving end (being respectively 8 tunnels when differential signal) of line card end (mother's CFPx mouth) to ODSP chip Skew, S21 filter curve and amplitude fading carry out test calibration, and will damage in the register of measurement parameter deposit line card, from And the register of the accessible line card of CPU.
3, after in the correspondence slot position of ACO module insertion line card, line card CPU passes through each in read module register first A calibrating parameters；
4, line card CPU joins Skew, S21 filter curve and the measurement of amplitude fading equivalent damage of respective modules and corresponding slot Number merges processing, and the parameter compensated then will be needed to be handed down to ODSP chip to compensate Skew and filtering characteristic.Pass through tune The gain of radio frequency amplifier (Driver) is saved to compensate the decaying of originator electric signal, compensates receiving end by adjusting the gain of TIA Decaying.
By this scheme, Skew, S21 and amplitude fading of system can be compensated preferably, therefore can be with maximum limit Degree reduces performance cost caused by the various damages of CFPx connector.
As shown in fig. 7, being the cable clip structure schematic diagram provided in an embodiment of the present invention inserted with ACO module, line card A packet Include: CPU, ODSP chip, CFP2 connector, MCU, Framer chip, ACO module, Framer chip and ODSP chip pass through more Pin connector (such as 168PIN) connection, ACO module is inserted into the CFP2 slot on line card A, and CPU does leading, and MCU can connect The order for receiving CPU goes to control the device in ACO module.Fig. 7 is the verification platform of embodiment test, and the present invention carries out ACO mould The embodiment of block damage compensation is as follows:
The transmission flow of signal are as follows: ODSP chip passes through the business datum for receiving the 200G bits per second of Framer chip, The differential signal on 8 tunnels of simulation is transferred to by the CFP2 connector of 104PIN by DAC after being carried out DSP processing CFP2-ACO module, this electric signal are used to drive the radio frequency amplifier of electricity, and amplified electric signal obtains light through electrooptic modulator The dual-polarization 16QAM signal on road is issued from Tx optical port.MCU control unit, laser, radio frequency amplification are specifically included that in ACO module Device (Driver), electrooptic modulator and integrated coherent receiver (containing TIA).
The reception process of signal are as follows: optical signal enters CFP2-ACO module by the port Rx, by photoelectric conversion and amplification 8 obtained road electric signals enter ODSP chip by CFP2 connector.Electric signal is then passed through the signal processing of receiving end, thus extensive Complex signal simultaneously is completed to receive, and the signal after reception passes through SERDES again and passes Framer chip back.
As shown in figure 8, being line card CPU provided in an embodiment of the present invention by the hair of CFP2-ACO module and line card CFP2 slot The Skew of end and receiving end is overlapped to obtain the schematic diagram that ODSP chip needs to compensate Skew.Because being modulated using dual-polarization (Dual Polarization) format, there are two orthogonal polarization states of X and Y, each orthogonal polarization is filled out needs and is added In-phase (road I signal is in the same direction) and quadrature (road Q orthogonal signalling), thus need in total four road electric signal XI, XQ, YI,YQ.In Fig. 8, the Skew of the originator and receiving end of CFP2-ACO module and line card CFP2 slot is overlapped by line card CPU, CPU The parameter obtained after superposition, which is handed down to ODSP chip, realizes compensation effect.
Fig. 9-a is the amplitude-frequency for the S21 that line card CPU provided in an embodiment of the present invention arrives CFP2-ACO module and CFP2 slot The compensating parameter that response is overlapped generation respectively is issued in ODSP chip to be shown for compensating the performance cost that originator S21 is introduced It is intended to, Fig. 9-b is the phase frequency response for the S21 that line card CPU provided in an embodiment of the present invention arrives CFP2-ACO module and CFP2 slot The compensating parameter that generation should be overlapped respectively is issued to the performance cost signal introduced in ODS chip P for compensating originator S21 Figure.According to the description of front, the performance damage of CFPx-ACO module by signal is mainly introduced at CFP2 connector, and in reality Connector is equal to ODSP chip and connector to Skew, filtering damage and amplitude fading between CFP2-ACO module in test process It can carry out respective calibration, Fig. 8 gives the process of CFP2-ACO module Skew and line card Skew superposition, will be total after superposition Skew makees with reference to the compensation rate for obtaining needing to issue, and compensation rate, which is issued in ODSP chip, can compensate originator and the Skew of receiving end draws The performance cost risen, Fig. 9-a and Fig. 9-b give S21 curve and the line card CFP2 connector S21 phase frequency response of CFP2-ACO module It answers, amplitude-frequency response and the schematic diagram for being superimposed post-compensation parameter, total S21 will be calculated is issued in ODSP chip and carry out S21 The compensation of damage.
It is not 0 at 0 frequency when the S21 of calibration uses absolute value, is negative value, the range value that frequency is 0 is become 0. For example frequency is 0Hz, the corresponding -3/-5/-8dB of the frequency of 10GHz, 20GHz.Become 0/-2/-5dB after normalization, moreover it is possible to according to S21 obtains both ends CFP2 interface and causes amplitude fading, and the 0Hz in previous example is -3dB, has also reacted declining for signal in fact Subtract, the energy of -3dB representation signal reduces half.Because of dB=10*log (P1/P2), when p1=0.5*p2, as a result Become -3dB.CPU obtains the total amount that amplitude fading can be calculated after these information.CPU is adjusted according to attenuation by MCU The amplitude fading that the gain of Driver and TIA goes to compensation junction to introduce.
Figure 10 is the performance comparison schematic diagram of accurate compensation provided in an embodiment of the present invention and blind compensation, is accurately compensated and blind In the performance comparison of compensation, blind compensation is that the property of compensation line card 2 and line card 1 is gone with the combined optimized parameter of line card 1 and module 1 Can, therefore have performance cost.@194.1THz in Figure 10 indicates the frequency of the corresponding optical wavelength of 194.1THz, corresponding wave A length of 1544.525nm.
It demonstrates in the aforementioned embodiment and compensates the property regulation of system to optimal, corresponding error performance is figure The curve accurately compensated in 10.In the case where being changed without module and compensating parameter, in the embodiment of the present invention more by same module It changes on another line card (and the line card of front is same batch), it is different by the design and use device of each producer, often A module and line card require to demarcate, to could accurately compensate.Corresponding characteristic curve of error code is as shown in compensation blind in Figure 10. It can be seen that biggish performance cost is had if not proposing a plan to compensate according to the embodiment of the present invention, especially to Gao Bo The high-order pattern of special rate, when S21 and Skew difference is larger, actual performance boost may be bigger.
In the embodiment of the present invention, the parameter of the calibration of line card to CFPx interface and CFPx-ACO is carried out at joint superposition Reason, using obtained parameter as the damage for referring to compensation system performance.Line card can place ACO module, pass through the standard of CFPx Interface and ACO module are interconnected, while ODSP chip and control unit (CPU) has been placed above, and ODSP chip is main here For starting and the signal processing of receiving end, communication etc. device between of the CPU to control each device.ACO module is not wrap Containing the optical module that ODSP is concerned with, it is made of originator, receiving end and control unit.Originator specifically includes that originator laser, electric amplifier And electrooptic modulator.Receiving end specifically includes that local oscillator laser, optical mixer unit, photodetector and TIA etc..Control unit is main For communicating and the power supply etc. of each device.CFPx interface is the interface for meeting MSA relevant regulations, and one end is ACO module, in addition Side is line card interface, and each pin meets MSA relevant regulations, therefore meets between the line card and module of defined different manufacturers It can flexibly be arranged in pairs or groups.
Technical solution provided by the invention can reduce Skew when different CFPx-ACO modules and different line card slot positions are arranged in pairs or groups, S21 and decaying equivalent damage difference caused by penalty in system performance, can be promoted under the premise of not changing system framework line card and CFPx-ACO module forms the transmission performance of system, and does not need additional hardware resource.Line card is arrived in the embodiment of the present invention The parameter of CFPx interface and Skew, S21 of CFPx-ACO module filtering and each self-calibration that decays is as input, the CPU meter of line card Calculation module Skew, S21 filtering and decaying total with the line card ports of its collocation, the result of calculating is damaged as reference Performance cost caused by the difference of disparate modules and the collocation of different line cards can be effectively reduced by this technology in compensation.This hair The compensation scheme that bright embodiment provides can dynamically be adjusted according to the various combination of module and line card, to realize damage Dynamic compensation.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because According to the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules is not necessarily of the invention It is necessary.
For the above scheme convenient for the better implementation embodiment of the present invention, phase for implementing the above scheme is also provided below Close device.
It please refers to shown in Figure 11-a, a kind of damage compensation device of pluggable ACO module provided in an embodiment of the present invention 1100, it may include: swap controller 1101, parameter reader 1102 and damage compensation estimator 1103, wherein
Swap controller 1101, for the first ACO module to be inserted into corresponding first slot of the first line card, described One ACO module is inserted on first slot after pulling out from corresponding second slot of the second line card, when described first When ACO module is inserted on first slot, corresponding first multi-pin connector of the first line card described in the first ACO module is connected It connecing, first multi-pin connector is connected with the corresponding first smooth Digital Signal Processing ODSP chip of first line card, when When the first ACO module is inserted on second slot, corresponding second multi-pipe pin of the second line card described in the first ACO module connects Device is connect to be connected；
Parameter reader 1102, for getting the first damage measurement parameter from the register of the first ACO module, Wherein, the first damage measurement parameter is to pass through described second when the first ACO module is inserted on second slot When multi-pin connector carries out electric signal transmission, damage measurement parameter that the connector impairment value of generation obtains after measuring；
The parameter reader 1102 is also used to get from the register of first line card corresponding to described first Second damage measurement parameter of slot, wherein the second damage measurement parameter be pass through in the first ODSP chip it is described When first multi-pin connector carries out electric signal transmission, the damage that the connector impairment value of generation obtains after measuring measures ginseng Number；
Damage compensation estimator 1103, for it is described first damage measurement parameter and it is described second damage measurement parameter into Row merging treatment is to obtain damage assessment as a result, obtaining the first ODSP chip and described according to the damage assessment result The connector compensated is needed always to damage when carrying out electric signal transmission by first multi-pin connector between the first ACO module Value.
In some embodiments of the invention, it please refers to shown in Figure 11-b, the second multi-pin connector connection is State the corresponding 2nd ODSP chip of the second line card, described device 1100 further include: the first damage measuring appliance 1104, wherein
The first damage measuring appliance 1104, for being inserted into corresponding second slot of the second line card when the first ACO module When upper, by being connected with described the of the 2nd ODSP chip when being inserted on second slot to the first ACO module Generated connector impairment value measures to obtain the first damage survey when two multi-pin connectors progress electric signal transmission Parameter is measured, by the first damage measurement parameter storage into the register of the first ACO module.
In some embodiments of the invention, the first damage measuring appliance 1104 is also used to be inserted into when the first ACO module When on to corresponding second slot of the second line card, to the 2nd ODSP chip by being connected with the institute of the first ACO module Generated connector impairment value when the second multi-pin connector carries out electric signal transmission is stated to measure to obtain third damage Hurt measurement parameter, by third damage measurement parameter storage into the register of second line card.
In some embodiments of the invention, it please refers to shown in Figure 11-c, described device 1100 further include: the second damage is surveyed Measuring device 1105, wherein
The swap controller 1101 is also used to for the first ACO module being inserted on corresponding first slot of the first line card Before, the 2nd ACO module is inserted on corresponding first slot of the first line card；
It is described second damage measuring appliance 1105, for the first ODSP chip by being connected with the 2nd ACO mould Generated connector impairment value measures to obtain second when the first multi-pin connector progress electric signal transmission of block Measurement parameter is damaged, by the second damage measurement parameter storage into the register of first line card.
In some embodiments of the invention, the second damage measuring appliance 1105 is also used to be inserted into when the 2nd ACO module When on to corresponding first slot of the first line card, by being connected with when being inserted on first slot to the 2nd ACO module First multi-pin connector of the first ODSP chip carry out when electric signal transmission generated connector impairment value into Row measurement is to obtain the 4th damage measurement parameter, by the 4th damage measurement parameter storage to the 2nd ACO module In register.
In some embodiments of the invention, the connector impairment value includes at least one of following information: telecommunications Number propagation time delay, forward direction transmission coefficient S21 filtering characteristic, electric signal amplitude fading.
In some embodiments of the invention, it please refers to shown in Figure 11-d, described device 1100 further include: damage compensator 1106, the first ODSP chip and described first are obtained according to the damage assessment result for the damage compensation estimator Needed when carrying out electric signal transmission by first multi-pin connector between ACO module the total impairment value of connector that compensates it Afterwards, it is needed when the first ODSP chip and the first ACO module pass through the first pin connector transmission telecommunications number When the total impairment value of the connector of compensation includes the propagation time delay and positive transmission coefficient S21 filtering characteristic of electric signal, by institute The first ODSP chip and the first ACO module are stated by the company that needs to compensate when the first pin connector transmission telecommunications number It connects the total impairment value of device and is sent to the first ODSP chip, by the propagation time delay of the first ODSP chip compensation electric signal With S21 filtering characteristic；When the first ODSP chip and the first ACO module are by first pin connector transmission electricity When the total impairment value of connector that needs compensate when signal includes the amplitude fading of electric signal, according to the first ODSP chip and institute It states the first ACO module and adjusts institute by the total impairment value of the connector for needing to compensate when the first pin connector transmission telecommunications number State the radio-frequency amplifier gain and trans-impedance amplifier TIA gain of the first ACO module.
By previous embodiment to illustration of the invention it is found that the first slot of the first ACO module and the first line card It establishes before plug connection, the first damage measurement parameter has been preserved in the register of the first ACO module, the first line card is posted The second damage measurement parameter is preserved in storage, i.e. the first ACO module and First Line is stuck in front of this plug is established just The calibration of impairment parameter has been carried out in advance, therefore generated damage when transmission telecommunications number between the first ACO module and the first line card Wound can be merged processing and be estimated by the first damage measurement parameter and the second damage measurement parameter, and the damage of generation is estimated The total impairment value of connector that meter result needs to compensate when can be used for calculating electric signal transmission, the total impairment value of the connector are to carry out Effective foundation of signal impairment compensation, so that being damaged calibration in advance by the first ACO module and First Line card can be complete It at the estimation of damage, therefore does not need to use CDR module as DCO module, be answered suitable for what ACO module needed often to plug With scene, damage caused by multi-pin connector is compensated, the transmission performance of electric signal is improved.
It should be noted that the contents such as information exchange, implementation procedure between each module/unit of above-mentioned apparatus, due to Embodiment of the present invention method is based on same design, and bring technical effect is identical as embodiment of the present invention method, particular content Reference can be made to the narration in embodiment of the method shown in the present invention is aforementioned, details are not described herein again.
In addition it should be noted that, the apparatus embodiments described above are merely exemplary, wherein described as separation The unit of part description may or may not be physically separated, component shown as a unit can be or It can not be physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to reality Border needs to select some or all of the modules therein to achieve the purpose of the solution of this embodiment.In addition, provided by the invention In Installation practice attached drawing, the connection relationship between module indicates there is communication connection between them, specifically can be implemented as one Item or a plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, it can It understands and implements.
In conclusion the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to upper Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to upper Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (14)

1. a kind of damage compensation method of pluggable simulation coherent light ACO module characterized by comprising
First ACO module is inserted on corresponding first slot of the first line card, the first ACO module is from the second line card pair It is inserted on first slot after being pulled out on the second slot answered, when the first ACO module is inserted in first slot When upper, the first ACO module the first multi-pin connector corresponding with first line card is connected, first multi-pipe pin Connector is connected with the corresponding first smooth Digital Signal Processing ODSP chip of first line card, when the first ACO module is inserted When on second slot, the first ACO module the second multi-pin connector corresponding with second line card is connected；
The first damage measurement parameter is got from the register of the first ACO module, wherein the first damage measurement ginseng Number is when the first ACO module is inserted on second slot, by carrying out telecommunications to second multi-pin connector The damage measurement parameter that generated connector impairment value obtains after measuring when number transmission；
It is got from the register of first line card and damages measurement parameter corresponding to the second of first slot, wherein The second damage measurement parameter is to carry out electric signal biography by first multi-pin connector in the first ODSP chip The damage measurement parameter that generated connector impairment value obtains after measuring when defeated；
Processing is merged to obtain damage assessment to the first damage measurement parameter and the second damage measurement parameter As a result, being obtained between the first ODSP chip and the first ACO module according to the damage assessment result by described the The total impairment value of connector for needing to compensate when one multi-pin connector carries out electric signal transmission.
2. the method according to claim 1, wherein second multi-pin connector is connected with second line Block corresponding 2nd ODSP chip, the method also includes:
When the first ACO module is inserted on corresponding second slot of the second line card, described is inserted in the first ACO module Electric signal transmission when institute is carried out by being connected with second multi-pin connector of the 2nd ODSP chip when on two slots The connector impairment value of generation measures to obtain the first damage measurement parameter, by the first damage measurement parameter storage Into the register of the first ACO module.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
When the first ACO module is inserted on corresponding second slot of the second line card, connection is passed through to the 2nd ODSP chip Have second multi-pin connector of the first ACO module carry out when electric signal transmission generated connector impairment value into Row measurement is to obtain third damage measurement parameter, by the deposit of third damage measurement parameter storage to second line card In device.
4. the method according to claim 1, wherein described be inserted into the first line card correspondence for the first ACO module The first slot on before, the method also includes:
2nd ACO module is inserted on corresponding first slot of the first line card；
Electric signal biography is carried out by being connected with the first multi-pin connector of the 2nd ACO module to the first ODSP chip Generated connector impairment value measures to obtain the second damage measurement parameter when defeated, by the second damage measurement ginseng Number storage is into the register of first line card.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
When the 2nd ACO module is inserted on corresponding first slot of the first line card, described is inserted in the 2nd ACO module Electric signal transmission when institute is carried out by being connected with first multi-pin connector of the first ODSP chip when on one slot The connector impairment value of generation measures to obtain the 4th damage measurement parameter, by the 4th damage measurement parameter storage Into the register of the 2nd ACO module.
6. the method according to any one of claims 1 to 5, which is characterized in that the connector impairment value includes as follows At least one of information: the propagation time delay of electric signal, forward direction transmission coefficient S21 filtering characteristic, electric signal amplitude decline Subtract.
7. according to the method described in claim 6, it is characterized in that, described obtain described first according to the damage assessment result It needs to compensate when carrying out electric signal transmission by first multi-pin connector between ODSP chip and the first ACO module The total impairment value of connector after, the method also includes:
It is needed when the first ODSP chip and the first ACO module pass through the first multi-pin connector transmission telecommunications number It, will when the total impairment value of the connector to be compensated includes the propagation time delay and positive transmission coefficient S21 filtering characteristic of electric signal The first ODSP chip and the first ACO module need to compensate when passing through the first multi-pin connector transmission telecommunications number The total impairment value of connector be sent to the first ODSP chip, by the transmission time of the first ODSP chip compensation electric signal Delay and S21 filtering characteristic；
It is needed when the first ODSP chip and the first ACO module pass through the first multi-pin connector transmission telecommunications number When the total impairment value of the connector to be compensated includes the amplitude fading of electric signal, according to the first ODSP chip and described first ACO module needs the total impairment value of the connector that compensates to adjust described the when passing through the first multi-pin connector transmission telecommunications number The radio-frequency amplifier gain and trans-impedance amplifier TIA gain of one ACO module.
8. a kind of damage compensation device of pluggable simulation coherent light ACO module characterized by comprising
Swap controller, for the first ACO module to be inserted into corresponding first slot of the first line card, the first ACO mould Block is inserted on first slot after pulling out from corresponding second slot of the second line card, when the first ACO module When being inserted on first slot, the first ACO module the first multi-pin connector corresponding with first line card is connected It connecing, first multi-pin connector is connected with the corresponding first smooth Digital Signal Processing ODSP chip of first line card, when When the first ACO module is inserted on second slot, the first ACO module and second line card corresponding more than second Pin connector is connected；
Parameter reader, for getting the first damage measurement parameter from the register of the first ACO module, wherein institute Stating the first damage measurement parameter is when the first ACO module is inserted on second slot, by second multitube The damage measurement parameter that foot connector obtains after generated connector impairment value measures when carrying out electric signal transmission；
The parameter reader is also used to get corresponding to first slot from the register of first line card Two damage measurement parameters, wherein the second damage measurement parameter is to pass through first multitube in the first ODSP chip The damage measurement parameter that foot connector obtains after generated connector impairment value measures when carrying out electric signal transmission；
Compensation estimator is damaged, for merging place to the first damage measurement parameter and the second damage measurement parameter Reason is to obtain damage assessment as a result, obtaining the first ODSP chip and the first ACO according to the damage assessment result The total impairment value of connector for needing to compensate when carrying out electric signal transmission by first multi-pin connector between module.
9. device according to claim 8, which is characterized in that second multi-pin connector is connected with second line Block corresponding 2nd ODSP chip, described device further include: the first damage measuring appliance, wherein
The first damage measuring appliance, for when the first ACO module is inserted on corresponding second slot of the second line card, to institute It states and is connected when the first ACO module is inserted on second slot by being connected with second multi-pipe pin of the 2nd ODSP chip It connects generated connector impairment value when device carries out electric signal transmission to measure to obtain the first damage measurement parameter, by institute The storage of the first damage measurement parameter is stated into the register of the first ACO module.
10. device according to claim 9, which is characterized in that
The first damage measuring appliance, is also used to when the first ACO module is inserted on corresponding second slot of the second line card, right The 2nd ODSP chip carries out electric signal transmission by being connected with second multi-pin connector of the first ACO module When generated connector impairment value measure to obtain third damage measurement parameter, the third is damaged into measurement parameter In the register for storing second line card.
11. device according to claim 8, which is characterized in that described device further include: the second damage measuring appliance, wherein
The swap controller, before being also used to for the first ACO module being inserted on corresponding first slot of the first line card, by Two ACO modules are inserted on corresponding first slot of the first line card；
It is described second damage measuring appliance, for the first ODSP chip by being connected with the first of the 2nd ACO module Generated connector impairment value measures to obtain the second damage measurement when multi-pin connector progress electric signal transmission Parameter, by the second damage measurement parameter storage into the register of first line card.
12. device according to claim 11, which is characterized in that the second damage measuring appliance is also used to as the 2nd ACO When module is inserted on corresponding first slot of the first line card, lead to when being inserted on first slot to the 2nd ACO module Cross generated connector when first multi-pin connector progress electric signal transmission for being connected with the first ODSP chip Impairment value measures to obtain the 4th damage measurement parameter, by the 4th damage measurement parameter storage to described second In the register of ACO module.
13. the device according to any one of claim 8 to 12, which is characterized in that the connector impairment value includes such as At least one of lower information: the amplitude of the propagation time delay of electric signal, forward direction transmission coefficient S21 filtering characteristic, electric signal Decaying.
14. device according to claim 13, which is characterized in that described device further include: damage compensator, for described Damage compensation estimator is obtained according to the damage assessment result and is passed through between the first ODSP chip and the first ACO module It crosses after the total impairment value of connector for needing to compensate when first multi-pin connector carries out electric signal transmission, when described first The connector that ODSP chip and the first ACO module need to compensate when passing through the first multi-pin connector transmission telecommunications number When total impairment value includes the propagation time delay and positive transmission coefficient S21 filtering characteristic of electric signal, by the first ODSP core Piece and the first ACO module need the connector compensated always to damage when passing through the first multi-pin connector transmission telecommunications number Value is sent to the first ODSP chip, is filtered by the propagation time delay and S21 of the first ODSP chip compensation electric signal Characteristic；When the first ODSP chip and the first ACO module pass through the first multi-pin connector transmission telecommunications number When the total impairment value of the connector for needing to compensate includes the amplitude fading of electric signal, according to the first ODSP chip and described first ACO module needs the total impairment value of the connector that compensates to adjust described the when passing through the first multi-pin connector transmission telecommunications number The radio-frequency amplifier gain and trans-impedance amplifier TIA gain of one ACO module.
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CN102307142A (en) * 2011-08-19 2012-01-04 中兴通讯股份有限公司 Back plate system
WO2012095043A2 (en) * 2012-02-21 2012-07-19 华为技术有限公司 Method and device for compensating for time path

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