CN108028715B

CN108028715B - A kind of port match method and device

Info

Publication number: CN108028715B
Application number: CN201580083064.5A
Authority: CN
Inventors: 周谞; 邓宁; 王娟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-09-21
Filing date: 2015-09-21
Publication date: 2019-05-21
Anticipated expiration: 2035-09-21
Also published as: CN108028715A; WO2017049444A1; CN110224781A; CN110224781B

Abstract

The present invention provides a kind of port match method and device.This method comprises: headend HEE sends the first pilot parameters, the first sweep parameter to n tail end equipment TEE respectively and starts scan command；First pilot parameters include the first pilot carrier frequency, and corresponding first pilot carrier frequency of each TEE is different；First sweep parameter includes the first scanning stepping and the first scanning range；N is positive integer；HEE receives the first scanning optical signal that m TEE is sent respectively with the first sweep parameter in the n TEE；Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the information of the first pilot carrier frequency of each TEE；M is the positive integer less than or equal to n；HEE determines whether that the transmission optical wavelength of the first TEE is matched with target wavelength channel according to the first scanning optical signal；When there are a TEE, is sent to the first TEE and stop scan command.

Description

A kind of port match method and device

Technical field

The present invention relates to technical field of photo communication more particularly to a kind of port match method and devices.

Background technique

With increasing rapidly for Metropolitan Area Network (MAN) flow, by wavelength-division multiplex (English: Wavelength division Multiplexing, referred to as: WDM) technology introduce metropolitan area optical network demand it is gradually strong.Different from the wavelength-division multiplex of point-to-point System, metro WDM system network structure, networking cost and in terms of suffer from unique requirement.In city The transceiver of one end of domain wavelength-division multiplex system, variant wavelength concentrates in central office, referred to as head end (English: Head End, Referred to as: HE).And the other end of metro WDM system exist in a distributed manner each tail end (English: Tail end, referred to as: TE) at node.The wave up and down of each wavelength signals is completed by various wavelength division multiplex devices in tail end.

Since the tail end of metropolitan area optical network is distributed in different geographical locations, and each tail end equipment (English: TE Equipment, referred to as: TEE) it is assigned to different wavelength progress information transmission.If TEE is fixed using traditional wavelength Optical transceiver module, it will improve installation, O&M and the stock cost of operator.Therefore for cost and consideration easy to maintain, It is a kind of normalization, the decolorizable optical module of plug and play that operator, which needs TEE,.In numerous decolorizable wavelength-division transmission plans In, Wavelength tunable laser becomes one of main selection with its excellent performance.Meanwhile swashing to reduce tunable wave length The cost of light device can remove wavelength locking device and relevant control circuit in each Wavelength tunable laser.So not The hardware cost that Wavelength tunable laser can only be reduced, can also reduce adjusting, calibration and test in production process at This, meets the needs of inexpensive metro WDM system.

When the tail end port in the TEE access metro area Wavelength Division optical-fiber network with wavelength tuning ability, how to realize and insert It uses, TEE will automatically send optical wavelength and be matched on the corresponding wavelength channel in tail end port, becomes one and to be studied asks Topic.

A kind of port automatic Matching scheme that the prior art provides includes: that TEE detects whether to receive optical signal.When When being not received by optical signal, TEE keeps halted state, and persistently detects whether to receive optical signal.When receiving optical signal Afterwards, counter i 1, TEE is set to start to carry out length scanning.TEE will send wavelength first and be set to a series of light wave long-channels The first light wave long-channel in (number of wavelengths depending on wdm system), and identity information is sent using new pilot channel, simultaneously Command information is received from receiving in optical signal.

Headend (English: HE Equipment, referred to as: HEE) new access is detected first on spectroanalysis instrument (OSA) TEE optical signal wavelength information.When there are multiple new access wavelength, HEE can send " new access TEE stopping to all TEE Send optical signal and wait " order.New access TEE all at this time can stop sending optical signal, and wait a random time.When When only one new access wavelength, HEE continues to read identity information from new pilot channel.Successfully reading new access TEE Identity information after, HEE tables look-up, and distributes a pilot carrier frequency for the TEE of the new access and send and use the pilot tones The information of rate gives the new access TEE.When identity information is oneself in the information that TEE is received, then added in sending signal The pilot carrier frequency received, meanwhile, TEE sends confirmation message using the pilot carrier frequency.HEE reads pilot frequency information, checks whether There is confirmation message.After finding that confirmation message receives, then matching process terminates.Otherwise, HEE, which is persistently sent, uses the pilot carrier frequency Information give the new access TEE, and read pilot frequency information.

When identity information is not oneself in the information that TEE is received, then beyond after certain time interval, counter is automatic Add 1, and be set as the second light wave long-channel for wavelength is sent, continue above-mentioned scanning step, until receiving correct identity letter Breath.

The program is when multiple new access wavelength occur, and after all TEE wait a random time, continues to send scanning light Signal.However need to continue to wait there are still the risk of conflict between the TEE sent after waiting, so circulation causes Port match failure or successful match but match time it is too long.

Summary of the invention

The embodiment of the present invention provides a kind of port match method and device, to solve port existing in the prior art The technical problem that complexion easily fails or match time is too long.

First aspect present invention provides a kind of port match method, comprising:

Headend HEE sends the first pilot parameters, the first sweep parameter and beginning to n tail end equipment TEE respectively Scan command；First pilot parameters include the first pilot carrier frequency, the mutual not phase of corresponding first pilot carrier frequency of each TEE Together；First sweep parameter includes the first scanning stepping and the first scanning range；N is positive integer；

The HEE receives the first scanning light letter that m TEE is sent respectively with first sweep parameter in the n TEE Number；Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the first pilot carrier frequency of each TEE Information；M is the positive integer less than or equal to n；

The HEE determines whether the transmission optical wavelength and target wavelength of the first TEE according to the first scanning optical signal Channel matching；

When there are a TEE, the first TEE of Xiang Suoshu, which is sent, stops scan command.

With reference to first aspect, in the first possible implementation of the first aspect, the HEE is swept according to described first It retouches optical signal and determines whether that the transmission optical wavelength of the first TEE is matched with target wavelength channel, comprising:

The HEE handles first scanning signal, obtains the first electric signal；

The HEE determines range value of first electric signal at the first pilot carrier frequency corresponding with each TEE It whether is more than preset threshold；Wherein, when there is range value to be more than the preset threshold, indicate that there are the transmission light waves of the first TEE Length is matched with target wavelength channel, and range value is described more than the corresponding TEE of the first pilot carrier frequency at the preset value First TEE.

With reference to first aspect or the first possible implementation of first aspect, second in first aspect are possible In implementation, when there are a TEE, before sending stopping scan command to the first TEE, the method is also Include:

The HEE sends the second sweep parameter to the first TEE, wherein second sweep parameter is swept including second Retouch stepping and the second scanning range；The second scanning stepping is less than the first scanning stepping and/or the second scanning model It encloses and is less than first scanning range；

The HEE receives the second scanning optical signal that the first TEE is sent with second sweep parameter；

When the HEE determines that the first TEE is scanned in second scanning range, the second scanning optical signal pair Amplitude of the second electric signal answered at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

The possible implementation of second with reference to first aspect, in the third possible implementation of first aspect In, when the HEE determines that the first TEE is scanned in second scanning range, the second scanning optical signal is corresponding Amplitude of second electric signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value, comprising:

When the HEE determines that the first TEE completes single pass in second scanning range, second scanning Amplitude maxima of corresponding second electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE；

When the HEE determines that the first TEE carries out second of scanning in second scanning range, described second is swept It retouches amplitude of corresponding second electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE and reaches the maximum Value.

The third possible implementation of the possible implementation of second with reference to first aspect or first aspect, In 4th kind of possible implementation of first aspect, the method also includes:

The HEE will carry out obtaining third electricity after photoelectric conversion by the second scanning optical signal of wavelength calibration tool Signal；

The HEE obtains amplitude of second electric signal at corresponding first pilot carrier frequency of the first TEE and reaches The third electric signal and second electric signal when maximum value；

The HEE determines wavelength offset information according to the third electric signal and second electric signal；

The wavelength offset information is sent to the first TEE by the HEE, so that the first TEE can be according to institute It states wavelength offset information and adjusts the current wavelength.

The possible implementation of second with reference to first aspect is into the 4th kind of possible implementation of first aspect Any one, in the fifth possible implementation of the first aspect, the method also includes:

The HEE obtains the corresponding second scanning light letter of second electric signal when amplitude reaches the maximum value Number optical power；

The HEE determines intended recipient optical power；Wherein, the intended recipient optical power is greater than business datum normal transmission Receiving sensitivity and the sum of transmission link equivalent power cost, the minimum transmitting optical power less than the first TEE and maximum The difference of uplink loss, the HEE received optical power detection error；

The HEE determines power adjustment message according to the difference of the optical power and the intended recipient optical power；

The power adjustment message is sent to the first TEE by the HEE, so that the first TEE is according to the function Rate adjustment information adjusts transmitting optical power.

With reference to first aspect or the 5th kind of second of possible implementation of first aspect to first aspect possible Any one in implementation, in the sixth possible implementation of the first aspect, the headend HEE is to n Tail end equipment TEE sends the first pilot parameters, the first sweep parameter respectively and starts scan command, comprising:

The HEE sends the first pilot parameters, the first scanning ginseng to the n TEE by control information channel CIC respectively Number and beginning scan command.

The 6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect In, the first pilot parameters, the first sweep parameter are sent to the n TEE by control information channel CIC respectively in the HEE And before starting scan command, the method also includes:

The HEE carries out amplitude tune to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth System generates the CIC.

With reference to first aspect or the 7th kind of second of possible implementation of first aspect to first aspect possible Any one in implementation, in the 8th kind of possible implementation of first aspect, the method also includes:

The HEE sends the transmitting optical power of the HEE or the transmitting optical power model of the HEE to the n TEE respectively It encloses；So that the n TEE can determine itself based on the transmitting optical power of the HEE or the transmitting optical power range of the HEE Initial transmitting optical power.

With reference to first aspect, in the 9th kind of possible implementation of first aspect, when there are a TEE, Before sending stopping scan command to the first TEE, the method also includes:

The HEE determines that when the first TEE is scanned in first scanning range, described first scans light Amplitude of corresponding first electric signal of signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

The 9th kind of possible implementation with reference to first aspect, in the tenth kind of possible implementation of first aspect In, the HEE is determined when the first TEE is scanned in first scanning range, the first scanning optical signal Amplitude of corresponding first electric signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value, comprising:

The HEE determines that after the first TEE completes single pass in first scanning range, described first sweeps Retouch Amplitude maxima of corresponding first electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE；

When the HEE determines that the first TEE carries out second of scanning in first scanning range, described first is swept It retouches amplitude of corresponding first electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE and reaches the maximum Value.

Tenth kind of possible implementation of the 9th kind of possible implementation or first aspect with reference to first aspect, In a kind of possible implementation of the tenth of first aspect, the method also includes:

The HEE will carry out obtaining the 4th electricity after photoelectric conversion by the first scanning optical signal of wavelength calibration tool Signal；

The HEE obtains amplitude of first electric signal at corresponding first pilot carrier frequency of the first TEE and reaches The 4th electric signal and first electric signal when maximum value；

The HEE determines wavelength offset information according to the 4th electric signal and first electric signal；

The 9th kind of possible implementation with reference to first aspect to first aspect a kind of the tenth possible implementation In any one, in the 12nd kind of possible implementation of first aspect, the method also includes:

The HEE obtains the corresponding first scanning light letter of first electric signal when amplitude reaches the maximum value Number optical power；

With reference to first aspect, in the 13rd kind of possible implementation of first aspect, when m is less than n, described It is described before the first scanning optical signal that HEE is received m TEE in the n TEE and sent respectively with first sweep parameter Method further include:

The HEE sends target wavelength to the n TEE respectively；Wherein, the target wavelength is that each TEE is finally wanted The wavelength being tuned to, the corresponding target wavelength of described each TEE are different；

The HEE receives that the n-m TEE that n-m TEE is sent respectively is respective to report optical signal, described to report light Signal corresponds to respective first pilot carrier frequency, described that optical signal is reported to be used to indicate the n-m TEE with wavelength locking function Energy；

The HEE reports optical signal to send scanning to the n-m TEE according to and ceases and desist order.

The 13rd kind of possible implementation with reference to first aspect, in the 14th kind of possible realization side of first aspect In formula, the method also includes:

The HEE will obtain first after reporting optical signal to carry out photoelectric conversion described in wavelength calibration tool and report electricity Signal；

The HEE will obtain second after reported optical signal progress photoelectric conversion and report electric signal；

The HEE reports electric signal and described second that electric signal is reported to determine wavelength offset information according to described first；

The wavelength offset information is sent respectively to corresponding TEE by the HEE, so that the n-m TEE being capable of basis The corresponding wavelength offset information adjusts the target wavelength.

14th kind of possible realization side of the 13rd kind of possible implementation or first aspect with reference to first aspect Any one in formula, in the 15th kind of possible implementation of first aspect, the method also includes:

The optical power of optical signal is reported described in the HEE acquisition；

The HEE determines intended recipient optical power；Wherein, the intended recipient optical power is greater than business datum normal transmission The sum of receiving sensitivity and transmission link equivalent power cost, be less than corresponding minimum transmitting optical power in the n-m TEE And the difference of maximum uplink loss, the HEE received optical power detection error；

The power adjustment message is sent respectively to the n-m TEE by the HEE so that the n-m TEE according to Corresponding power adjustment message adjusts transmitting optical power.

The 13rd kind of possible implementation with reference to first aspect is to the 15th kind of possible realization side of first aspect Any one in formula, in the 16th kind of possible implementation of first aspect, first pilot parameters further include One pilot modulated depth, the method also includes:

The HEE sends the second pilot parameters respectively to the n-m TEE and regular traffic sends order；Wherein, described Second pilot parameters include the second pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

With reference to first aspect or the first possible implementation of first aspect to first aspect the 12nd kind of possibility Implementation in any one, in the 17th kind of possible implementation of first aspect, first pilot parameters It further include the first pilot modulated depth, the method also includes:

The HEE sends the second pilot parameters to the first TEE and regular traffic sends order；Wherein, described second Pilot parameters include the second pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

With reference to first aspect or the first possible implementation of first aspect to first aspect the 17th kind of possibility Implementation in any one, in the 18th kind of possible implementation of first aspect, the method also includes:

The HEE receives the transmission request of the transmission of the 2nd TEE in the n TEE；Transmission request for request from Report information channel RMC reports information；

The HEE sends confirmation message to the 2nd TEE, to indicate the 2nd TEE by notifying on the RMC Breath.

Second aspect of the present invention provides a kind of port match method, comprising:

Tail end equipment TEE receives the first pilot parameters, the first sweep parameter that headend HEE is sent；Wherein, it first leads Frequency parameter includes the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

The TEE is when receiving the beginning scan command that the HEE is sent, and the TEE is without wavelength locking When the TEE of function, start to send the first scanning optical signal to institute according to first pilot carrier frequency and first sweep parameter State HEE；

The TEE stops length scanning when receiving the stopping scan command that the HEE is sent, and keeps current wavelength It is constant.

In conjunction with second aspect, in the first possible implementation of the second aspect, the method also includes:

The TEE is starting to send scanning optical signal to institute according to first pilot carrier frequency and first sweep parameter While stating HEE, persistently detect whether to receive the second sweep parameter that the HEE is sent；Wherein, second sweep parameter Including the second scanning stepping and the second scanning range；

The TEE is in second sweep parameter and the first sweep parameter difference, according to first pilot tones Rate and second sweep parameter start to send the second scanning optical signal to the HEE.

In conjunction with second aspect, in a second possible implementation of the second aspect, when the TEE is to lock with wavelength When determining the TEE of function, the method also includes:

The TEE receives the target wavelength that the HEE is sent；

The transmission wavelength of itself is tuned to the target wavelength by the TEE；

The TEE is when receiving the beginning scan command that the HEE is sent, according to first pilot carrier frequency to described HEE transmission reports optical signal；Wherein, described that optical signal is reported to be used to indicate the TEE as the TEE with wavelength locking function；

The TEE stops reporting optical signal described in transmission when receiving the stopping scan command that the HEE is sent, and Keep current wavelength constant.

Second in conjunction with the possible implementation of the first of second aspect or second aspect or second aspect is possible Implementation, in the third possible implementation of the second aspect, the method also includes:

The TEE is after receiving the wavelength offset information or power adjustment message that the HEE is sent, according to the wavelength Deviation information adjusts the current wavelength, or the transmitting optical power of the TEE is adjusted according to the power adjustment message.

The third in conjunction with the possible implementation of the first of second aspect or second aspect to second aspect is possible Any one in implementation is receiving what the HEE was sent in the fourth possible implementation of the second aspect Before starting scan command, the method also includes:

The TEE receives the initial power adjustment information that the HEE is sent；

The TEE determines the initial transmitting optical power of the TEE according to the initial power adjustment information.

In conjunction with the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation of second aspect In, the initial power adjustment information is the transmitting optical power of the HEE, and the TEE is according to the initial power adjustment information Determine the initial transmitting optical power of the TEE, comprising:

The TEE determines link load according to the received optical power of the transmitting optical power and the TEE；

The TEE determines that the initial transmitting optical power reaches the HEE's for the scanning optical signal not less than the TEE Minimum optical power, the link load and power headroom the sum of three value.

In conjunction with the 4th kind of possible implementation of second aspect, in the 6th kind of possible implementation of second aspect In, the initial power adjustment information is the transmitting optical power range of the HEE, and the TEE is adjusted according to the initial power Information determines the initial transmitting optical power of the TEE, comprising:

The TEE determines that any transmitting optical power within the scope of the transmitting optical power of the HEE is the initial transmission light Power.

The 6th kind in conjunction with the possible implementation of the first of second aspect or second aspect to second aspect is possible Any one in implementation, in the 7th kind of possible implementation of second aspect, the method also includes:

The TEE sends transmission request to the HEE；The transmission request is for requesting from report information channel RMC It notifies breath；

The TEE is reported after receiving the confirmation message that the HEE is sent, through the RMC to HEE transmission Information.

The 6th kind in conjunction with the possible implementation of the first of second aspect or second aspect to second aspect is possible Any one in implementation, in the 8th kind of possible implementation of second aspect, the method also includes:

The TEE reports information to HEE transmission by report information channel RMC.

In conjunction with the 7th kind of possible implementation of second aspect or the 8th kind of possible implementation of second aspect, In 9th kind of possible implementation of second aspect, the method also includes:

The TEE carries out amplitude tune to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth System generates the RMC.

The 9th kind in conjunction with the possible implementation of the first of second aspect or second aspect to second aspect is possible Any one in implementation, in the tenth kind of possible implementation of second aspect, first pilot parameters are also wrapped The first pilot modulated depth is included, after the stopping length scanning, the method also includes:

After the TEE receives the second pilot parameters that the HEE is sent and regular traffic sends order, start to send Regular traffic optical signal simultaneously persistently generates corresponding pilot signal according to second pilot parameters；Wherein, the second pilot tone ginseng Number includes the second pilot modulated depth, and the second pilot modulated depth is less than the first pilot modulated depth.

The tenth kind in conjunction with the possible implementation of the first of second aspect or second aspect to second aspect is possible Any one in implementation, in a kind of the tenth possible implementation of second aspect, in the TEE receiving Before the beginning scan command for stating HEE transmission, the method also includes:

The TEE carries out parameter configuration to the TEE according to first pilot parameters, first sweep parameter；

When the TEE receives the shutdown command that the HEE is sent, stop Parameter Configuration process and by configuration before It resets.

In conjunction with a kind of the tenth possibility of the possible implementation of the first of second aspect or second aspect to second aspect Implementation in any one, in the 12nd kind of possible implementation of second aspect, the method also includes:

During the stopping length scanning, when the TEE receives the aberrant commands that the HEE is sent, institute TEE is stated to stop sending the first scanning optical signal and receiving the new tuning information and NEW BEGINNING that the HEE is sent sweeping Order is retouched, and sends new scanning optical signal to the HEE according to the new tuning information；The tuning information includes pilot tone Parameter and sweep parameter；The aberrant commands include target wavelength, pilot parameters, Power initializations order and start scanning life Any one in order or any combination.

Third aspect present invention provides a kind of headend HEE, comprising:

Optical transmitter, for sending the first pilot parameters, the first sweep parameter respectively to n tail end equipment TEE and opening Beginning scan command；First pilot parameters include the first pilot carrier frequency, the mutual not phase of corresponding first pilot carrier frequency of each TEE Together；First sweep parameter includes the first scanning stepping and the first scanning range；N is positive integer；

Wavelength locking unit, the sent respectively with first sweep parameter for receiving m TEE in the n TEE One scanning optical signal；Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the of each TEE The information of one pilot carrier frequency；M is the positive integer less than or equal to n；And the is determined whether according to the first scanning optical signal The transmission optical wavelength of one TEE is matched with target wavelength channel；

Controller stops for when there are a TEE, controlling the optical transmitter and sending to the first TEE Scan command.

In conjunction with the third aspect, in the first possible implementation of the third aspect, the wavelength locking unit includes First electrooptical device and processing circuit,

First electrooptical device obtains the first electric signal for handling first scanning signal；

The processing circuit is for determining first electric signal at the first pilot carrier frequency corresponding with each TEE Range value whether be more than preset threshold；Wherein, when there is range value to be more than the preset threshold, indicate that there are the first TEE's It sends optical wavelength to match with target wavelength channel, and range value is corresponding more than the first pilot carrier frequency at the preset value TEE is the first TEE.

In conjunction with the first possible implementation of the third aspect, in second of possible implementation of the third aspect In,

Described control unit is also used to: when there are a TEE, controlling the optical transmitter to described first TEE is sent before stopping scan command, is controlled the optical transmitter to the first TEE and is sent the second sweep parameter, wherein institute Stating the second sweep parameter includes the second scanning stepping and the second scanning range；The second scanning stepping is less than first scanning Stepping and/or second scanning range are less than first scanning range；

First electrooptical device is also used to receive second that the first TEE is sent with second sweep parameter Scan optical signal；

When the processing circuit is also used to determine that the first TEE is scanned in second scanning range, described second Amplitude of corresponding second electric signal of scanning optical signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

In conjunction with second of possible implementation of the third aspect, in the third possible implementation of the third aspect In, the processing circuit is used for:

When determining that the first TEE completes single pass in second scanning range, through first photoelectric conversion Device carries out the second electric signal that photoelectric conversion obtains to the second scanning optical signal and leads in the first TEE corresponding first Amplitude maxima at frequent rate；And when determining that the first TEE carries out second of scanning in second scanning range, warp First electrooptical device carries out obtained the second electric signal of photoelectric conversion described the to the second scanning optical signal Amplitude at corresponding first pilot carrier frequency of one TEE reaches the maximum value.

In conjunction with second of possible implementation of the third aspect or the third possible implementation of the third aspect, In 4th kind of possible implementation of the third aspect, the wavelength locking unit further includes that wavelength calibration tool and the second photoelectricity turn Parallel operation part,

Second electrooptical device by the second scanning optical signal of wavelength calibration tool for that will carry out Third electric signal is obtained after photoelectric conversion；

The processing circuit is also used to: obtaining second electric signal in corresponding first pilot carrier frequency of the first TEE The amplitude at place reaches the third electric signal and second electric signal when maximum value；According to the third electric signal and Second electric signal determines wavelength offset information；

The controller is also used to: the optical transmitter, which controlled, by the wavelength offset information is sent to the first TEE, So that the first TEE can adjust the current wavelength according to the wavelength offset information.

In conjunction with the third aspect second of possible implementation into the 4th kind of possible implementation of the third aspect Any one, in the 5th kind of possible implementation of the third aspect, the processing circuit is also used to: acquisition amplitude reaches The optical power of the corresponding second scanning optical signal of second electric signal when maximum value；Determine intended recipient light function Rate；Wherein, the intended recipient optical power is greater than the receiving sensitivity and transmission link equivalent power of business datum normal transmission The sum of cost, the minimum transmitting optical power less than the first TEE and maximum uplink loss, the HEE received optical power The difference of detection error；Power adjustment message is determined according to the difference of the optical power and the intended recipient optical power；

The controller is also used to: the optical transmitter, which controlled, by the power adjustment message is sent to the first TEE, So that the first TEE adjusts transmitting optical power according to the power adjustment message.

The 5th kind in conjunction with the possible implementation of the first of the third aspect or the third aspect to the third aspect is possible Any one in implementation, in the 6th kind of possible implementation of the third aspect, light described in the controller is sent Device sends the first pilot parameters, the first sweep parameter to the n TEE respectively and starts to sweep by controlling information channel CIC Retouch order.

In conjunction with the 6th kind of possible implementation of the third aspect, in the 7th kind of possible implementation of the third aspect In, the HEE further includes modulating driver, for using the signal an of low frequency, low modulation depth to business datum optical signal Intensity carry out amplitude modulation and generate the CIC.

The 7th kind in conjunction with the possible implementation of the first of the third aspect or the third aspect to the third aspect is possible Any one in implementation, in the 8th kind of possible implementation of the third aspect, the controller is also used to: control The optical transmitter sends the transmitting optical power of the HEE or the transmitting optical power range of the HEE to the n TEE respectively； So that the n TEE can determine itself based on the transmitting optical power of the HEE or the transmitting optical power range of the HEE Initial transmitting optical power.

In conjunction with the third aspect, in the 9th kind of possible implementation of the third aspect, the wavelength locking unit is also wrapped The first electrooptical device and processing circuit are included,

The processing circuit is for determining when the first TEE is scanned in first scanning range, through institute It states the first electrooptical device and obtained the first electric signal of photoelectric conversion is carried out described first to the first scanning optical signal Amplitude at corresponding first pilot carrier frequency of TEE reaches maximum value.

In conjunction with the 9th kind of possible implementation of the third aspect, in the tenth kind of possible implementation of the third aspect In, the processing circuit is used for: being determined after the first TEE completes single pass in first scanning range, through institute It states the first electrooptical device and obtained the first electric signal of photoelectric conversion is carried out described first to the first scanning optical signal Amplitude maxima at corresponding first pilot carrier frequency of TEE；Determine that the first TEE carries out in first scanning range When rescan, the first electricity that photoelectric conversion obtains is carried out to the first scanning optical signal through first electrooptical device Amplitude of the signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value.

In conjunction with the 9th kind of possible implementation of the third aspect or the tenth kind of possible implementation of the third aspect, In a kind of possible implementation of the tenth of the third aspect, the wavelength locking unit further includes wavelength calibration tool and the second photoelectricity Switching device,

Second electrooptical device by the first scanning optical signal of wavelength calibration tool for that will carry out The 4th electric signal is obtained after photoelectric conversion；

The processing unit is also used to: obtaining first electric signal in corresponding first pilot carrier frequency of the first TEE The amplitude at place reaches the 4th electric signal and first electric signal when maximum value；According to the 4th electric signal and First electric signal determines wavelength offset information；

In conjunction with the tenth kind of possible implementation of the third aspect or a kind of the tenth possible implementation of the third aspect, In the 12nd kind of possible implementation of the third aspect, the processing circuit is also used to: acquisition amplitude reaches the maximum The optical power of the corresponding first scanning optical signal of first electric signal when value；Determine intended recipient optical power；Wherein, The intended recipient optical power be greater than business datum normal transmission receiving sensitivity and the sum of transmission link equivalent power cost, Minimum transmitting optical power less than the first TEE and maximum uplink loss, the HEE received optical power detection error it Difference；Power adjustment message is determined according to the difference of the optical power and the intended recipient optical power；

The controller is also used to；It controls the optical transmitter and the power adjustment message is sent to the first TEE, So that the first TEE adjusts transmitting optical power according to the power adjustment message.

In conjunction with the third aspect, in the 13rd kind of possible implementation of the third aspect, when m is less than n, the control Device is also used to: being controlled the optical transmitter to the n TEE and is sent target wavelength respectively；Wherein, the target wavelength is each The TEE wavelength to be finally tuned to, the corresponding target wavelength of described each TEE are different；

The wavelength locking unit is used to receive that the n-m TEE that n-m TEE is sent respectively to be respective that light is reported to believe Number, it is described that optical signal is reported to correspond to respective first pilot carrier frequency, it is described that optical signal is reported to be used to indicate the n-m TEE tool There is wavelength locking function；

The controller is also used to that optical signal is reported to control the optical transmitter according to and sends to the n-m TEE Scanning is ceased and desisted order.

In conjunction with the 12nd kind of possible implementation of the third aspect or the 13rd kind of possible realization side of the third aspect Any one in formula, in the 14th kind of possible implementation of the third aspect, the wavelength locking unit includes wavelength Tool, the first electrooptical device, the second electrooptical device and processing circuit are calibrated,

Second electrooptical device by the described of wavelength calibration tool for that will report optical signal to carry out photoelectricity First, which is obtained, after conversion reports electric signal；

First electrooptical device is used to that second will to be obtained after reported optical signal progress photoelectric conversion to report electricity Signal；

The processing circuit is used to report electric signal and described second that electric signal is reported to determine that wavelength is inclined according to described first Poor information；

The controller is also used to: control the optical transmitter wavelength offset information is sent respectively to it is corresponding TEE, so that the n-m TEE can adjust the target wavelength according to the corresponding wavelength offset information.

In conjunction with the 13rd kind of possible implementation of the third aspect or the 14th kind of possible realization side of the third aspect Formula, in the 15th kind of possible implementation of the third aspect, the wavelength locking unit is also used to: light is reported described in acquisition The optical power of signal；Determine intended recipient optical power；Wherein, the intended recipient optical power is greater than business datum normal transmission The sum of receiving sensitivity and transmission link equivalent power cost, be less than in the n-m TEE corresponding minimum transmitting optical power and Maximum uplink loss, the HEE received optical power detection error difference；According to the optical power and the intended recipient light The difference of power determines power adjustment message；

The controller is also used to: being controlled the optical transmitter for the power adjustment message and is sent respectively to the n-m A TEE, so that the n-m TEE adjusts transmitting optical power according to corresponding power adjustment message.

In conjunction with the third aspect the 13rd kind of possible implementation to the 15th kind of possible realization side of the third aspect Any one in formula, in the 16th kind of possible implementation of the third aspect, first pilot parameters further include One pilot modulated depth, the controller are also used to: being controlled the optical transceiver and are sent second respectively to the n-m TEE and lead Frequency parameter and regular traffic send order；Wherein, second pilot parameters include the second pilot tone depth；Second pilot tone is deep Degree is less than the first pilot modulated depth.

In conjunction with the 12nd kind of possibility of the possible implementation of the first of the third aspect or the third aspect to the third aspect Implementation in any one, in the 17th kind of possible implementation of the third aspect, first pilot parameters Further include the first pilot modulated depth, the controller is also used to: controlling the optical transceiver to the first TEE and send second Pilot parameters and regular traffic send order；Wherein, second pilot parameters include the second pilot tone depth；Second pilot tone Depth is less than the first pilot modulated depth.

In conjunction with the 17th kind of possibility of the possible implementation of the first of the third aspect or the third aspect to the third aspect Implementation in any one, in the 18th kind of possible implementation of the third aspect, the HEE further includes that light connects Device is received, for receiving the transmission request of the transmission of the 2nd TEE in the n TEE；The transmission request is believed for requesting from report Breath channel RMC reports information；

The controller is also used to: being controlled the optical transmitter to the 2nd TEE and is sent confirmation message, described in instruction 2nd TEE reports information by the RMC.

Fourth aspect present invention provides a kind of tail end equipment TEE, comprising:

Optical receiver, for receiving the first pilot parameters, the first sweep parameter of headend HEE transmission；Wherein, first Pilot parameters include the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

Optical transmitter, for when receiving the beginning scan command that the HEE is sent, and the TEE is without wave When the TEE of long lock function, started to send the first scanning light letter according to first pilot carrier frequency and first sweep parameter Number give the HEE；

Controller, for controlling the optical transceiver standing wave when receiving the stopping scan command that the HEE is sent Long scan keeps current wavelength constant.

In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, the controller is also used to: in institute While optical transmitter transmission scanning optical signal is stated to the HEE, persistently detect whether to receive institute by the optical receiver State the second sweep parameter of HEE transmission；Wherein, second sweep parameter includes the second scanning stepping and the second scanning range； In second sweep parameter and the first sweep parameter difference, according to first pilot carrier frequency and second scanning Optical transmitter described in state modulator sends the second scanning optical signal to the HEE.

In conjunction with fourth aspect, in the second possible implementation of the fourth aspect, when the TEE is to lock with wavelength When determining the TEE of function, the optical receiver is also used to: receiving the target wavelength that the HEE is sent；

The transmission wavelength of the optical transmitter is tuned to the target for controlling the optical transmitter by the controller Wavelength；

The controller is also used to: when receiving the beginning scan command that the HEE is sent, according to first pilot tone Frequency reports optical signal to HEE transmission by the optical transmitter；It is wherein, described that report optical signal to be used to indicate described TEE is the TEE with wavelength locking function；When receiving the stopping scan command that the HEE is sent, controls the light and send Device stops reporting optical signal described in transmission, and keeps current wavelength constant.

Second in conjunction with the possible implementation of the first of fourth aspect or fourth aspect or fourth aspect is possible Implementation, in the third possible implementation of the fourth aspect, the controller are also used to: receiving the HEE After the wavelength offset information or power adjustment message of transmission, the current wavelength or root are adjusted according to the wavelength offset information The transmitting optical power of the optical transmitter is adjusted according to the power adjustment message.

The third in conjunction with the possible implementation of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in implementation, in the fourth possible implementation of the fourth aspect, the optical receiver is also used to: Before receiving the beginning scan command that the HEE is sent, the initial power adjustment information that the HEE is sent is received；

The controller is also used to: the initial transmission light of the optical transmitter is determined according to the initial power adjustment information Power.

In conjunction with the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect In, the initial power adjustment information is the transmitting optical power of the HEE, and the controller is used for, according to the transmission light function The received optical power of rate and the TEE determine link load；Determine that the initial transmitting optical power is sweeping not less than the TEE Retouch optical signal reach the minimum optical power of the HEE, the link load and power headroom the sum of three value.

In conjunction with the 4th kind of possible implementation of fourth aspect, in the 6th kind of possible implementation of fourth aspect In, the initial power adjustment information is the transmitting optical power range of the HEE, and the controller is used for: the TEE determines institute Stating any transmitting optical power within the scope of the transmitting optical power of HEE is the initial transmitting optical power.

The 6th kind in conjunction with the possible implementation of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in implementation, in the 7th kind of possible implementation of fourth aspect, the controller is also used to: being passed through The optical transmitter sends transmission request to the HEE；The transmission request is notified from report information channel RMC for requesting Breath；And after receiving the confirmation message that the HEE is sent, information is reported to HEE transmission by the RMC.

The 7th kind in conjunction with the possible implementation of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in implementation, in the 8th kind of possible implementation of fourth aspect, the controller is also used to: being passed through Report information channel RMC reports information to HEE transmission.

In conjunction with the 7th kind of possible implementation of fourth aspect or the 8th kind of possible implementation of fourth aspect, In 9th kind of possible implementation of fourth aspect, the TEE further includes modulating driver, for using a low frequency, low The signal of modulation depth carries out amplitude modulation to the intensity of business datum optical signal and generates the RMC.

The 9th kind in conjunction with the possible implementation of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in implementation, in the tenth kind of possible implementation of fourth aspect, first pilot parameters are also wrapped The first pilot modulated depth is included, the controller is also used to: when the second pilot parameters and normal industry for receiving the HEE transmission After business sends order, controls the optical transmitter and start to send regular traffic optical signal and continue according to second pilot parameters Generate corresponding pilot signal；Wherein, second pilot parameters include the second pilot modulated depth, and second pilot modulated is deep Degree is less than the first pilot modulated depth.

The tenth kind in conjunction with the possible implementation of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in implementation, in a kind of the tenth possible implementation of fourth aspect, the controller is also used to root Parameter configuration is carried out to the optical transmitter according to first pilot parameters, first sweep parameter；And work as the light-receiving When device receives the shutdown command that the HEE is sent, stops Parameter Configuration process and reset configuration before.

In conjunction with a kind of the tenth possibility of the possible implementation of the first of fourth aspect or fourth aspect to fourth aspect Implementation in any one, in the 12nd kind of possible implementation of fourth aspect, the optical receiver is also used In: during the stopping length scanning, when receiving the aberrant commands that the HEE is sent, the controller control The optical transmitter stops sending the first scanning optical signal, and controls the optical receiver and receive the new of the HEE transmission Tuning information and NEW BEGINNING scan command；The optical transmitter is also used to: being sent according to the new tuning information new Scanning optical signal give the HEE；The tuning information includes pilot parameters and sweep parameter；The aberrant commands include target Any one in wavelength, pilot parameters, Power initializations order and beginning scan command or any combination.

The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages:

In embodiments of the present invention, HEE can distribute mutually different first pilot carrier frequency, multiple TEE for each TEE The first scanning optical signal can be sent simultaneously based on the first pilot carrier frequency of itself to HEE, and HEE can be based on each TEE's First pilot carrier frequency is judged whether to match with target wavelength channel to multiple TEE simultaneously.Therefore, in the embodiment of the present invention Method can support the parallel channel of multiple TEE to match, and successful match rate is high, and matching speed is fast.

Detailed description of the invention

Fig. 1 is a kind of structure chart of WDM optical-fiber network provided in an embodiment of the present invention；

Fig. 2 is a kind of flow chart of the port match method of the side HEE provided in an embodiment of the present invention；

Fig. 3 is a kind of flow chart of the port match method of the side TEE provided in an embodiment of the present invention；

Fig. 4 is the flow chart of the port match method of the another kind side TEE provided in an embodiment of the present invention；

Fig. 5 is a kind of possible implementation process of the port match of the side HEE provided in an embodiment of the present invention；

Fig. 6 is a kind of possible implementation process of the port match of the side TEE provided in an embodiment of the present invention；

Fig. 7 is a kind of working condition relational graph of HEE provided in an embodiment of the present invention；

Fig. 8 is a kind of working condition relational graph of TEE provided in an embodiment of the present invention；

Fig. 9 is a kind of functional block diagram of port match device provided in an embodiment of the present invention；

Figure 10 is the functional block diagram of another port match device provided in an embodiment of the present invention；

Figure 11 is a kind of structure chart of wavelength locking unit provided in an embodiment of the present invention；

Figure 12 is a kind of structural block diagram of TEE provided in an embodiment of the present invention.

Specific embodiment

In order to solve the above technical problems, the main thought of the technical solution of the embodiment of the present invention is as follows:

HEE can distribute mutually different first pilot carrier frequency for each TEE, and multiple TEE can be based on itself the One pilot carrier frequency sends the first scanning optical signal to HEE simultaneously, and HEE can the first pilot carrier frequency based on each TEE simultaneously Multiple TEE are judged whether to match with target wavelength channel.Therefore, the method in the embodiment of the present invention can be supported multiple The parallel channel of TEE matches, and successful match rate is high, and matching speed is fast.

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.

In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist Three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or".

It please refers to shown in Fig. 1, is a kind of structural schematic diagram of WDM optical-fiber network provided in an embodiment of the present invention.The optical-fiber network Including HEE, transmission link, TEE and power splitter.HEE include n modulating driver (English: Modulation Driver, Referred to as: MD), the optical transceiver of n different wave length, optical multiplexer (English: Optical Multiplexer, abbreviation: OM), light Demultiplexer (English: Optical Demultiplexer, referred to as: OD), controller and wavelength locking unit (English: Wavelength locking unit, referred to as: WLU).Wherein, n is positive integer.

Wherein, the output end of n MD is connect with n optical transceiver correspondingly respectively.Specifically, each optical transceiver It may include optical transmitter and optical receiver that be physically mutually indepedent or integrating.The output end and light of MD is received and dispatched The optical transmitter of device connects.The first input end of MD is for receiving business datum optical signal.The second input terminal and controller of MD Connection.

N optical transceiver is corresponded with n head end port, and n optical transceiver is connect with OM/OD.OD is used for will Uplink wavelength-division multiplex signals are demultiplexed, and are transferred to corresponding optical transceiver respectively.What OM was used to export n optical transceiver The road n optical signal carries out wavelength-division multiplex, forms downlink wavelength-division multiplex signals.

The quantity of TEE is n, and each TEE is corresponded with a tail end port respectively.In other words, n TEE is a with n respectively Optical transceiver corresponds, so HEE can be communicated with n TEE respectively by n optical transceiver.

In practice, controller and WLU are also possible to integrate may be physically individual.Control Device and n MD are also possible to integrate may be physically mutually independent.

Power splitter can be a part of HEE, a part being also possible on transmission link.Two output ends of power splitter It is connect respectively with WLU, OM/OD.The one end connecting with OM/OD is two-way communication, and the one end being connect with WLU be it is unidirectional, By power splitter to WLU.

Transmission link can be the multiple network topological structures such as annular, chain, tree-like.

It is a kind of flow chart of port match method provided in an embodiment of the present invention referring next to shown in Fig. 2.At this In embodiment, method shown in Fig. 2 is applied to HEE as shown in Figure 1.As shown in Fig. 2, this method comprises:

Step 11:HEE sends the first pilot parameters, the first sweep parameter to n TEE respectively and starts scan command； First pilot parameters include the first pilot carrier frequency, and corresponding first pilot carrier frequency of each TEE is different；First sweep parameter Including the first scanning stepping and the first scanning range；

Step 12:HEE receives the first scanning optical signal that m TEE is sent respectively with the first sweep parameter in n TEE；Its In, the first scanning optical signal that each TEE is sent in m TEE includes the information of the first pilot carrier frequency of each TEE；M be less than Or the positive integer equal to n；

Step 13:HEE determines whether that the transmission optical wavelength of the first TEE and target wavelength are logical according to the first scanning optical signal Road matching；

Step 14: when there are a TEE, being sent to the first TEE and stop scan command.

Optionally, before step 12, such as in a step 11, HEE also sends target wavelength to n TEE respectively；Its In, target wavelength is each TEE wavelength to be finally tuned to, and the corresponding target wavelength of each TEE is different.

Specifically, working as the HEE before step 12 also sends target wavelength to each TEE, then whether having wave according to TEE The process flow of long locking ability, the side TEE is not quite similar.For not having wavelength locking ability or with wavelength locking ability It for TEE, please refers to shown in Fig. 3, is the flow chart of the port match method of the side TEE provided in an embodiment of the present invention.When in step When before rapid 12 without sending target wavelength, in spite of having the function of wavelength locking, the process flow of the side TEE is also the same as Fig. 3 institute Show.

As shown in figure 3, this method comprises:

Step 21:TEE receives the first pilot parameters, the first sweep parameter that HEE is sent；Wherein, the first pilot parameters packet Include the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

Step 22: when receiving the beginning scan command that the HEE is sent, being scanned according to the first pilot carrier frequency and first Parameter starts to send the first scanning optical signal to HEE；

Step 23:TEE stops length scanning when receiving the stopping scan command that the HEE is sent, and prewave is worked as in holding Length is constant.

And for the TEE with wavelength locking function, processing method as shown in Figure 4, this method can also be used Include:

Step 31:TEE receives target wavelength, the first pilot parameters, the first sweep parameter that HEE is sent；Wherein, it first leads Frequency parameter includes the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

The transmission wavelength of itself is tuned to the target wavelength by step 32:TEE；

Step 33:TEE is when receiving the beginning scan command of HEE transmission, according to the first pilot carrier frequency in HEE transmission Report optical signal；Wherein, reporting optical signal to be used to indicate TEE is the TEE with wavelength locking function；

Step 34:TEE stops transmission and reports optical signal when receiving the stopping scan command of HEE transmission, and keeps working as Preceding wavelength is constant.

In practice, n TEE may be all without wavelength locking function, may be all with wavelength locking function Can, may partially have the function of wavelength locking.TEE with wavelength locking function can execute method as shown in Figure 4.

Below with reference to the matched implementation process of Fig. 2, Fig. 3 and Fig. 4 the present invention is described in detail embodiment middle port.

Firstly, in a step 11, HEE, which can be, successively to be sent the first pilot parameters, the first sweep parameter and starts to scan Order.Optionally, the first pilot parameters can also include the first pilot modulated depth.Optionally, HEE also sends target wavelength, The corresponding target wavelength of each TEE is not identical.

Specifically, HEE sends above-mentioned tuning information by control information channel (CIC).

CIC specifically can be HEE using a low frequency, low modulation depth signal to the intensity of business datum optical signal into Line amplitude modulation generates.Optionally, low frequency can refer to that frequency is less than the frequency of 50MHz, and modulation depth can be with less than 50% It is considered low modulation depth.

Optionally, which can be but be not limited to: non-return to zero code signal, sine wave signal.

In practice, each MD can be controlled by control unit as shown in Figure 1 and generates the CIC, and will The corresponding tuning information of each TEE is carried on CIC, and is sent to by optical transceiver corresponding with each TEE corresponding TEE。

For example, the target wavelength of TEE1 is λ 1, and corresponding first pilot carrier frequency is f1.The target wavelength of TEE2 is λ 2, corresponding first pilot carrier frequency is f2.The corresponding sweep parameter of different TEE can be identical.

It is corresponding after HEE has sent various tuner parameters through the above way, the side TEE i.e. execute step 21 or Step 31.It should be noted that if HEE is the various tuning informations sent by the CIC of foregoing description, in the side TEE, It can use filter and filter out data service signal, so that it may obtain tuning information.

It should be noted that after step 21, before the initiation command that TEE receives HEE transmission, TEE is according to the One pilot parameters, the first sweep parameter carry out parameter configuration to the TEE.Specifically, the scanning for example to the optical transmitter of TEE Parameter is configured according to the first sweep parameter.In configuration process, when TEE receives the shutdown command of HEE transmission, stop Parameter Configuration process simultaneously resets configuration before.Step 21 can be come back to again.

In the side TEE, according to method shown in Fig. 3, after step 21, it is carried out step 22, i.e., according to the first pilot tones Rate and the first sweep parameter start to send the first scanning optical signal to HEE.

Each parameter that the optical transmitter of itself is adjusted according to the first pilot parameters, the first sweep parameter is specifically included, then The first scanning optical signal is sent to HEE.Start length scanning.

Generally, TEE can be scanned first since the minimum wavelength in the first scanning range, then gradually according to first Stepping is scanned to increase.

Wherein, the first scanning optical signal includes the information of the first pilot carrier frequency of corresponding TEE, first pilot carrier frequency Information is by HEE for distinguishing each TEE.

Corresponding after the side TEE sends the first scanning optical signal in step 22, in the side HEE, HEE executes step 12, Receive the first scanning optical signal that m TEE is sent respectively with the first sweep parameter in n TEE.M TEE is without wavelength The TEE of lock function also may include the TEE with wavelength locking function.

It should be noted that reception in step 12, can be and received by optical receiver, it is also possible to by such as WLU shown in Fig. 1 is received.That is the first scanning optical signal of uplink is directly entered WLU by power splitter.

Next, HEE executes step 13, the transmission optical wavelength of the first TEE is determined whether according to the first scanning optical signal It is matched with target wavelength channel.Specifically, HEE handles the first scanning optical signal that each TEE is sent, obtain and each Corresponding first electric signal of TEE；HEE determines range value of first electric signal at the first pilot carrier frequency corresponding with each TEE It whether is more than preset threshold；Wherein, when there is range value to be more than the preset threshold, indicate that there are the transmission light waves of the first TEE Length is matched with target wavelength channel, and range value is institute more than the corresponding TEE of the first pilot carrier frequency at the preset threshold State the first TEE.

Because of the effect of wavelength division multiplex device channel isolation, if sending optical wavelength and target wavelength channel mismatch When, loss can be generated to the power for sending optical signal.And the power of amplitude and optical signal is linear, so if amplitude is big In preset threshold, then meaning that power is greater than power threshold, that is, indicate that sending optical wavelength is targeted by target wavelength channel.If Amplitude is less than preset threshold, then meaning that power is less than power threshold, that is, indicates that sending optical wavelength is not aligned with target wavelength Channel.

Wherein, preset threshold can be preset.Preset threshold can be the threshold value of amplitude, be also possible to amplitude with The ratio of electric spectral noise, i.e., specific signal-to-noise ratio.The value range of preset threshold is, for example, between 5-30dB.

For example, the first scanning optical signal is carried out photoelectric conversion by HEE, forms the first electric signal.And by first Electric signal carries out Fourier transformation and obtains the frequency spectrum of signal, and then can learn at corresponding first pilot carrier frequency of each TEE Amplitude whether be more than preset threshold.

In practice, the transmission optical wavelength and target of the first TEE can also be determined whether there is otherwise Wavelength channel matching, the present invention are not especially limited.

Optionally, step 13 can be executed by WLU as shown in figure 1.

Wherein, the quantity of the first TEE may be one, it is also possible to multiple.

For there are when a TEE, HEE executes step 14, i.e., sends to the first TEE and stop scan command.The stopping is swept It retouches order and can be and sent by aforementioned CIC.

It is corresponding, in the side TEE, executes step 23 and stop wavelength that is, when receiving the stopping scan command of HEE transmission Scanning keeps current wavelength constant.It should be noted that wavelength is not carried out according still further to scanning stepping when stopping length scanning Variation, that is, it is constant to be maintained at current wavelength, but can continue to send the first scanning optical signal with current wavelength.

So far, the port match success of the first TEE, current wavelength is target wavelength.

For other TEE of not successful match, then step 12 and step 13 are continued to execute, until successful match.

It should be noted that stopped length scanning in step 23, keep current wavelength constant, in this process, When TEE receives the aberrant commands of HEE transmission, TEE stops sending the first scanning optical signal, and comes back to step 21 and step Rapid 22, in other words, TEE receives the new tuning information and NEW BEGINNING scan command that HEE is sent, and believes according to new tuning Breath sends new scanning optical signal to HEE.Wherein, tuning information includes pilot parameters, sweep parameter, further can also include Target wavelength, the transmission power of HEE and Power initializations order etc..

Wherein, aberrant commands include that abnormal target wavelength, pilot parameters, Power initializations order start in scan command Any one or any combination.

It can be seen from above description in embodiments of the present invention, HEE can be mutually different for each TEE distribution one First pilot carrier frequency, multiple TEE can send the first scanning optical signal to HEE simultaneously based on the first pilot carrier frequency of itself, and HEE can the first pilot carrier frequency based on each TEE simultaneously multiple TEE are judged whether to match with target wavelength channel. Therefore, the method in the embodiment of the present invention can support the parallel channel of multiple TEE to match, and successful match rate is high, and match Speed is fast.

As an example it is assumed that the number of wavelengths of system is that the scanning stepping of 80, wavelength channel interval 50GHz, first is 12.5GHz, the first scanning range will cover 80 wavelength.System maximum transmission distance is 80km, and transmitting various tuning informations is 64bit, the transmission rate of tuning information are 100kb/s, and equipment processing delay is 0.1ms.

If matched according to the method in the embodiment of the present invention, T=80 × 2 × 10 of each step sweep time⁵)/(3 ×10⁸/1.5)+(64×2)/(100×10³)+0.1=2.28ms.And the port match time of single TEE is up to 10 × 80 × 2.28ms=1.824s.And the port match speed of system finishing is 1.824s × 80=145.92s.It can be seen that this hair The matching speed of matching process in bright embodiment is far longer than of the matching process of the prior art described in background technique With speed.

According to method shown in Fig. 4, in the side TEE, after step 31, step 32 is executed, i.e., by the transmission wavelength of itself It is tuned to target wavelength.Because TEE has the function of wavelength locking, TEE can directly carry out the adjustment of wavelength.Optionally, The parameter of the optical transmitter of itself is adjusted also according to the first pilot parameters.

Next, executing step 33 when TEE receives beginning scan command, i.e., sent out according to the first pilot carrier frequency to HEE Serve report optical signal；Wherein, reporting optical signal to be used to indicate TEE is the TEE with wavelength locking function.Because HEE does not know simultaneously Knowing which TEE has the function of wavelength locking, so needing TEE transmission that optical signal is reported to be indicated.So for HEE, It will receive that the n-m TEE that n-m TEE is sent respectively is respective to report optical signal, it is described to report optical signal corresponding respective The first pilot carrier frequency.In the present embodiment, m is less than n.Then HEE is after receiving and reporting optical signal, according to reporting optical signal Corresponding first pilot carrier frequency, you can learn which TEE has the function of wavelength locking.Then HEE controls light corresponding with the TEE Transceiver is sent to the TEE with wavelength locking function for scan command is stopped.

Corresponding, TEE receives the stopping scan command, and stops reporting optical signal described in transmission, and keep current wavelength It is constant.That is, the TEE successful match.

Further, because carrying out port match by preceding method, although the transmission optical wavelength of the first TEE is targeted by target Wavelength channel, but the power loss for sending optical signal, institute may be easy to cause there is no the center of alignment target wavelength channel With in order to enable the transmission optical wavelength alignment target wavelength channel of the first TEE center, step 13 judging result be exist When one TEE, and before step 14, this method further include: HEE determination is swept in the first scanning range in the first TEE When retouching, amplitude of corresponding first electric signal of the first scanning optical signal at corresponding first pilot carrier frequency of the first TEE reaches most Big value.In other words, when amplitude reaches maximum value, step 14 is just executed, is sent to the first TEE and stops scan command.

Specifically, HEE is determined when the first TEE completes single pass in the first scanning range, the first scanning optical signal Amplitude maxima of corresponding first electric signal at corresponding first pilot carrier frequency of the first TEE；HEE determines the first TEE When carrying out second in one scanning range and scanning, corresponding first electric signal of the first scanning optical signal is in the first TEE corresponding the Amplitude at one pilot carrier frequency reaches the maximum value.

It for example, is exactly the first TEE when scan for the first time, HEE persistently records the first TEE is sent first and sweeps Amplitude of corresponding first electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE is retouched, amplitude maximum is finally selected Value.Certainly, this Amplitude maxima is necessarily greater than preset threshold.

Then, the first TEE starts to carry out second of scanning, and sweep parameter is identical, and the scanning optical signal of transmission is first Optical signal is scanned, HEE persistently monitors corresponding first electric signal of the first scanning signal in corresponding first pilot carrier frequency of the first TEE The amplitude at place just sends to the first TEE until reaching maximum value again and stops scan command.Corresponding to the side TEE, TEE is performed both by Step 22.

Amplitude reaches maximum value, indicates that the current wavelength of the first TEE is targeted by the center in target wavelength channel, it is possible to Indicate port match success.

In practice, it is also possible to when first time, scanning was not completed, Amplitude maxima has just been found, so being not required to It until scanning for the first time to complete that second of scanning can be started.

It can make the alternatively possible realization side at the center of the transmission optical wavelength alignment target wavelength channel of the first TEE Formula are as follows: the judging result of step 13 be there are when a TEE, and before step 14, this method further include: HEE is to first TEE sends the second sweep parameter, wherein the second sweep parameter includes the second scanning stepping and the second scanning range；Second scanning Stepping is less than the first scanning stepping and/or the second scanning range less than the first scanning range；HEE receives the first TEE and sweeps with second Retouch the second scanning optical signal of parameter transmission；When HEE determines that the first TEE is scanned in the second scanning range, the second scanning light letter Number amplitude of corresponding second electric signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

Specifically, when HEE determines that the first TEE is scanned in the second scanning range, the second scanning optical signal corresponding second Amplitude of the electric signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value, comprising: HEE determines the first TEE second When completing single pass in scanning range, corresponding second electric signal of the second scanning optical signal is led in the first TEE corresponding first Amplitude maxima at frequent rate；When the HEE determines that the first TEE carries out second of scanning in the second scanning range, second Amplitude of corresponding second electric signal of scanning optical signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value.

In practice, when can also determine that the first TEE is scanned in the second scanning range otherwise, second Amplitude of corresponding second electric signal of scanning optical signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value, such as By being compared with previous range value, when range value changes from small to big, then becomes smaller by greatly, i.e., it is believed that having found Amplitude maxima, it is possible to not have to carry out subsequent scanning, and directly start second of scanning, until reaching amplitude maximum Value.

It is corresponding, in the side TEE, while executing step 22, persistently detect whether the second scanning for receiving HEE transmission Parameter；First TEE is in the second sweep parameter and the first sweep parameter difference, according to the first pilot carrier frequency and the second sweep parameter Start to send the second scanning optical signal to HEE.

In the present embodiment, by the principle of the transmission optical wavelength alignment target wavelength channel of the first TEE and process with it is aforementioned Embodiment is similar, so details are not described herein.And in the present embodiment, because being had been completed rough by step 13 Matching, it is possible to not need to be scanned on a large scale, scanning stepping can be turned down.Therefore, HEE is under the first TEE The second sweep parameter is sent out, the second sweep parameter is less than the first sweep parameter, it is possible to improve the speed of port match.

For example, continue by taking previous example as an example, it is assumed that second scanning stepping be 5GHz, scanning range 100GHz, That is two wavelength channel intervals.In this case, the port match time of single TEE be up to 4 × 80 × 2.28+20 × 2.28=0.775s.It can be seen that the method in the present embodiment can be further improved port match speed.

Optionally, this method further include: HEE determines wavelength offset information or power adjustment message, and wavelength offset is believed Breath or power adjustment message are sent to the first TEE.Corresponding, the first TEE receives the wavelength offset information or power tune that HEE is sent Whole information, and current wavelength is adjusted according to wavelength offset information, or the transmitting optical power of TEE is adjusted according to power adjustment message. Method in through this embodiment can reach fine match.

In practice, HEE determines wavelength offset information or power adjustment message, and there are many modes, below will in detail into Row description.

Specifically, determining wavelength offset information comprising steps of HEE for the method for step 11 shown in Fig. 2 to step 14 It will carry out obtaining the 5th electric signal after photoelectric conversion by the first scanning optical signal of wavelength calibration tool；HEE is scanned first Optical signal carries out obtaining the first electric signal after photoelectric conversion；HEE obtains the first electric signal in corresponding first pilot tone of the first TEE The 5th electric signal and the first electric signal when amplitude at frequency is more than preset threshold；HEE is according to the 5th electric signal and the first electricity Signal determines wavelength offset information.

Wherein, wavelength calibration tool is the optical device with known filtering characteristic, the power attenuation at different wave length Amount is different.

Power attenuation amount L at target wavelength is set.It scans optical signal and passes through optical splitter, be divided into two parts, A part can generate a specific attenuation L1 after having by wavelength calibration, and another part is that have without wavelength calibration , so not decaying.Two paths of signals subtracts each other the value that can be obtained by L1.When L1 is equal with L, illustrate that scanning optical signal is in At target wavelength.When L1 and L are unequal, illustrate that the wavelength for scanning optical signal has deviation.Wavelength calibration tool working principle be Content well-known to those skilled in the art, so being no longer described in detail.

Because of amplitude and the linear corresponding relationship of power, in the present embodiment, obtained after wavelength calibration tool Amplitude of the 5th electric signal at corresponding first pilot carrier frequency of the first TEE and first without having by wavelength calibration Amplitude of the electric signal at corresponding first pilot carrier frequency of the first TEE just has difference, it is possible to obtain Magnitude Difference.Then According to the conversion formula of amplitude and wavelength, you can learn that wavelength offset value.

Specifically, determining wavelength offset information comprising steps of HEE for the embodiment of the TEE with wavelength locking function By by the optical signal progress photoelectric conversion that reports of wavelength calibration tool, obtaining first reports electric signal later；HEE is by reported light Signal carries out photoelectric conversion, and obtaining second reports electric signal later；HEE reports electric signal and second to report electric signal according to first Determine wavelength offset information；Wavelength offset information is sent respectively to corresponding TEE by HEE, so that n-m TEE can be according to right The wavelength offset information adjustment target wavelength answered.

Specific determination process in the present embodiment is similar with the process in above-described embodiment, and only the optical signal of foundation is not Together.

Specifically, determining wavelength offset information comprising steps of HEE will for the method for using the second sweep parameter It carries out obtaining third electric signal after photoelectric conversion by the second scanning optical signal of wavelength calibration tool；HEE obtains second Third electric signal and the second electricity when amplitude of the electric signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value Signal；HEE determines wavelength offset information according to third electric signal and the second electric signal.

Specific determination process in the present embodiment is similar with the process in above-described embodiment, only the scanning optical signal of foundation It is different.

Specifically, determining wavelength offset information for the method for using identical sweep parameter to carry out twice sweep Comprising steps of HEE carries out the first scanning optical signal having by wavelength calibration to obtain the 4th electric signal after photoelectric conversion； HEE obtains the 4th electricity when amplitude of first electric signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value Signal and the first electric signal；HEE determines wavelength offset information according to the 4th electric signal and the first electric signal.

Specifically, the method for determining power adjustment message includes: HEE for the method for using the second sweep parameter The second electric signal corresponding second when acquisition amplitude reaches the maximum value scans the optical power of optical signal；HEE determines target Received optical power；Wherein, intended recipient optical power is equivalent greater than the receiving sensitivity of business datum normal transmission and transmission link The sum of Power penalty, the minimum transmitting optical power less than the first TEE and maximum uplink loss, HEE received optical power detect The difference of error；HEE determines power adjustment message according to the difference of optical power and intended recipient optical power.

Specifically, because amplitude and the linear corresponding relationship of transmitting optical power, reach most as long as calculating amplitude Amplitude when big value can calculate light power.Amplitude is equal to conversion coefficient, the first pilot modulated depth and the second scanning light The product of optical power three when signal reaches WLU.Conversion coefficient is preset value.Before above-mentioned amplitude calculation method is equally applicable to Each place for needing to calculate amplitude is stated, as long as but the second scanning signal is replaced with the optical scanning signal under corresponding scene i.e. It can.

Certainly, in practice, it is also possible to scan by the photoreceiver second of the corresponding optical transceiver of the first TEE The optical power of optical signal, and then power adjustment message is calculated according to intended recipient optical power.

Optionally, power adjustment is the difference of optical power and intended recipient optical power.

Specifically, determining power adjustment message for the method for using identical sweep parameter to carry out twice sweep Comprising steps of HEE obtains the corresponding first scanning optical signal of first electric signal when amplitude reaches the maximum value Optical power；HEE determines intended recipient optical power；Wherein, intended recipient optical power is greater than the reception of business datum normal transmission The sum of sensitivity and transmission link equivalent power cost, the minimum transmitting optical power less than the first TEE and maximum uplink are damaged Consumption, the difference of the HEE received optical power detection error；The HEE is according to the optical power and the intended recipient optical power Difference determines power adjustment message.

Specific determination process in the present embodiment is similar with the process in above-described embodiment, and only the optical signal of foundation is not Together, so details are not described herein.

Specifically, determining power adjustment message comprising steps of HEE for the embodiment of the TEE with wavelength locking function Obtain the optical power for reporting optical signal；HEE determines intended recipient optical power；Wherein, intended recipient optical power is greater than business datum The sum of the receiving sensitivity of normal transmission and transmission link equivalent power cost are less than corresponding minimum hair in the n-m TEE Optical power and maximum uplink is sent to be lost, the difference of the HEE received optical power detection error；HEE according to the optical power and The difference of the intended recipient optical power determines power adjustment message；The power adjustment message is sent respectively to by the HEE The n-m TEE, so that the n-m TEE adjusts transmitting optical power according to corresponding power adjustment message.

Further, after step 14, this method further include: HEE sends the second pilot parameters and normal industry to the first TEE Business sends order；Wherein, the second pilot parameters include the second pilot tone depth；Second pilot tone depth is less than the first pilot modulated depth Degree, to reduce influence of the pilot tone to regular traffic optical signal.

It is corresponding, in the side TEE, after step 23, this method further include: when TEE receives the second pilot tone of HEE transmission After parameter and regular traffic send order, starts to send regular traffic optical signal and persistently be generated according to second pilot parameters Corresponding pilot signal.

Optionally, before sending beginning scan command, this method further include: HEE sends the hair of HEE to n TEE respectively Send optical power or the transmitting optical power range of HEE；So that n TEE is capable of the transmission light of transmitting optical power or HEE based on HEE Power bracket determines the initial transmitting optical power of itself.Further alternative, HEE also sends Power initializations order to n TEE, TEE just start according to the transmitting optical power of HEE or the transmission light function of HEE when receiving transmission Power initializations order Rate range determines the initial transmitting optical power of itself.

For ease of description, the transmitting optical power range of the transmitting optical power of HEE or HEE can be referred to as initial power tune Whole information.In practice, initial power adjustment information can also be other information, as long as TEE is enabled to be based on the letter Breath determines the initial transmitting optical power of itself.

It is corresponding, in the side TEE, before the beginning scan command for receiving HEE transmission, this method further include: TEE is received The initial power adjustment information for the HEE that HEE is sent；TEE determines that the first of the TEE originates according to the initial power adjustment information Send optical power.

When initial power adjustment message be HEE transmitting optical power when, TEE according to the transmitting optical power and itself Received optical power determines the initial transmitting optical power of the TEE.

Specifically, TEE estimates link load according to the transmitting optical power received, wherein link load is the transmission The difference of the received optical power of optical power and TEE.The initial transmitting optical power of TEE is that the scanning optical signal not less than: TEE reaches Minimum optical power, link load and the value for the sum of the three of power headroom reserved because of detection error of HEE.Wherein, The minimum optical power that the scanning optical signal of TEE reaches HEE is a preset value.

When initial power adjustment message is the transmitting optical power range of the HEE, TEE determines the transmission light of the HEE Any transmitting optical power in power bracket is the initial transmitting optical power.

The implementation process of port match in embodiment in order to better illustrate the present invention refer again to shown in Fig. 5, be The possible implementation flow chart in the side HEE one.Specifically, this method comprises:

Step 101:HEE sends the first pilot parameters, the first sweep parameter to n TEE respectively and starts scan command； First pilot parameters include the first pilot carrier frequency, and corresponding first pilot carrier frequency of each TEE is different；First sweep parameter Including the first scanning stepping and the first scanning range；

Step 102:HEE receives the first scanning optical signal that m TEE is sent respectively with the first sweep parameter in n TEE； Wherein, the first scanning optical signal that each TEE is sent in m TEE includes the information of the first pilot carrier frequency of each TEE；m For the positive integer less than or equal to n；

Step 103:HEE determines whether the transmission optical wavelength and target wavelength of the first TEE according to the first scanning optical signal Channel matching；When there are a TEE, step 104 is executed, when a TEE is not present, returns to step 101；

Step 104:HEE sends the second sweep parameter to the first TEE, wherein the second sweep parameter includes the second scanning step Into with the second scanning range；

Step 105:HEE receives the second scanning optical signal that the first TEE is sent with the second sweep parameter；

After step 106:HEE determines that the first TEE completes single pass in the second scanning range, the second scanning optical signal pair Amplitude maxima of the second electric signal answered at corresponding first pilot carrier frequency of the first TEE；

Step 107:HEE receives the second scanning sent when the first TEE starts to scan for second in the second scanning range Optical signal；

Step 108:HEE judges corresponding second electric signal of the second scanning optical signal in corresponding first pilot tone of the first TEE Whether the amplitude at frequency reaches the maximum value；When the judgment result is yes, step 109 is executed, when the judgment result is no, Continue to execute step 108；

Step 109:HEE sends scanning to the first TEE and ceases and desist order；Wherein, amplitude reaches the first TEE's of maximum value characterization Current wavelength is tuned near target wavelength；

Step 110:HEE calculates wavelength offset information and power adjustment message；

Step 111:HEE sends wavelength deviation information and power adjustment message to the first TEE；

Step 112:HEE judges whether the transmission optical wavelength of the first TEE and transmitting optical power have adjusted completion, works as adjustment When completion, executes step 113 and return to step 110 when not adjusting completion；

Step 113:HEE sends the second pilot parameters to the first TEE and regular traffic sends order.

It refer again to shown in Fig. 6, be a possible implementation flow chart of the side TEE.Specifically, this method comprises:

Step 201:TEE receives the first pilot parameters, the first sweep parameter that HEE is sent；Wherein, the first pilot parameters packet Include the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

Step 202:TEE judges whether to receive beginning scan command；If so, then follow the steps 203, otherwise, just after It is continuous to execute step 202；

Step 203:TEE starts to send the first scanning optical signal to HEE according to the first pilot carrier frequency and the first sweep parameter； And it persistently detects whether to receive the second sweep parameter；Wherein, the second sweep parameter includes that the second scanning stepping and second is swept Retouch range；

Step 204:TEE judges whether the second sweep parameter is identical as the first sweep parameter；When the judgment result is no, it holds Row step 205 continues to execute step 203 when the judgment result is yes；

Step 205: starting to send the second scanning optical signal to HEE according to the first pilot carrier frequency and the second sweep parameter；

Step 206:TEE judges whether to receive stopping scan command；When the judgment result is no, step is continued to execute 206, when the judgment result is yes, execute step 207；

Step 207: stopping length scanning, keep current wavelength constant；

Step 208: receiving the wavelength offset information or power adjustment message that HEE is sent and adjusted according to wavelength offset information Current wavelength, or the transmitting optical power according to power adjustment message adjustment TEE；

Step 209:TEE judges whether that the second pilot parameters for receiving HEE transmission and regular traffic send order；When sentencing When disconnected result is no, step 209 is continued to execute；When the judgment result is yes, start to send regular traffic optical signal and according to institute It states the second pilot parameters and persistently generates corresponding pilot signal.

In the workflow of aforementioned HEE, it can be defined as four typical working conditions, respectively state S0, S1, S2 and S3.It please refers to shown in Fig. 7, the transfer relationship between each state.Each working condition can be defined as follows:

S0:HEE init state.Cycle through tuning information needed for carrying out port Auto-matching for TEE, including mesh It marks wavelength, pilot parameters, HEE transmitting optical power, Power initializations, sweep parameter and starts scan command；On HEE is persistently detected Pilot signal of the traveling optical signal with the presence or absence of the corresponding pilot carrier frequency of each TEE (subsequent to be known as target frequency)；

S1:HEE is in pre-locked state.After HEE detects optical signal and finds the pilot signal of target frequency, then into Enter S1 state, the Amplitude maxima that HEE is persistently detected and is recorded at target pilot frequency under this state；

S2:HEE is in wavelength locking state.When HEE has found Amplitude maxima, then into S2 state, and sends and stop Only scan command sends new pilot modulated depth, wavelength offset information and power adjustment message to TEE；

S3:HEE is in normal operating condition.It is wanted when HEE detects that wavelength of optical signal transmitted by TEE and power are all satisfied After asking, then enter S3 state, sends business datum and normally send order, HEE completing port Auto-matching process.

For abnormal conditions, HEE corresponding operating is as follows:

When HEE is in S1, S2 or S3 state, disappear or if receiving optical signal within a certain period of time in target frequency The pilot signal at place disappears, then HEE returns to S0 state from each state.

In the workflow of aforementioned TEE, it can be defined as five typical working conditions, respectively state S0, S1, S2 and S3.It please refers to shown in Fig. 8, the transfer relationship between each state.Each working condition can be defined as follows:

S0:TEE just starts, Transmitter Turn-Off, in transmission preparation state.Under this state, TEE persistently receives tuning letter Breath, including target wavelength, pilot parameters, HEE transmitting optical power, Power initializations, sweep parameter, and configured according to tuning information Transmitter parameter.Prepare when TEE receives all tuning informations and completes to send, and after receiving and starting scan command, into S1 State.

S1:TEE is in length scanning state, and TEE carries out length scanning according to sweep parameter under this state.When TEE is received To after stopping scan command, into S2 state.

S2:TEE is in scanning halted state, and under this state, TEE is near target wavelength, the wave received by CIC Long deviation information and power adjustment message, to carry out the intense adjustment of wavelength and power.It is sent when TEE receives regular traffic After order, into S3 state.

S3:TEE is in normal and sends state, and TEE stills remain in uplink signal the pilot tone for carrying respective objects frequency Signal, and continue to receive CIC information, adjust related transmission parameter.

S4:TEE is in uplink information transmission state, when TEE is in S2 or S3 state and needs to transmit information to HEE, Transmission request is sent to HEE first, after obtaining the confirmation message of HEE, TEE enters S4 state, logical by uplink report information Road (RMC) reports information to HEE transmission.

For abnormal conditions, TEE corresponding operating is as follows:

When TEE is in S1, S2, S3 or S4 state, if receiving shutdown command, receiving optical signal disappearance or a timing Interior to be properly received CIC information, then TEE will return to S0 state from each state.

What the state transfer of TEE was mainly triggered by the different command for receiving HEE, therefore when TEE is in some state Under when receiving unexpected exception CIC information, the corresponding operating of TEE is as follows:

When TEE is in S0 state, stop scanning, wavelength offset information, power adjustment message or transmission if received When the exception CIC command information such as business order, TEE should keep S0 state constant.

Optionally, when TEE is in S0 state, during configuring transmitter parameter, and start to sweep receiving Before retouching order, if receiving shutdown command, stop parameter configuration, and configuration before is reset.

When TEE is in S1 state, if it is initial to receive target wavelength, pilot parameters, HEE transmitting optical power, power When the exception CIC command informations such as change, sweep parameter and beginning scan command, the reason is that TEE, which sends wavelength, does not scan target also Wavelength channel, HEE does not detect the pilot tone of target frequency, therefore HEE is still in S0 state and continues to send above-mentioned tuning letter Breath.Therefore, TEE should remain at S1 state and continue length scanning.

When TEE is in S1 state, if it is abnormal to receive wavelength offset, power adjustment message or transmission business order etc. When CIC command information, there are HEE and TEE process to mismatch risk, and Ying Jiang TEE resets and returns to S0 state.

When TEE is in S2 or S3 state, if receiving target wavelength, pilot parameters, HEE transmitting optical power, power When the exception CIC command informations such as initialization command, sweep parameter, beginning scan command, TEE state can be reset and return to S0 State, or by uplink RMC reporting conditions, enable HEE state and TEE state synchronized.

The producing method of above-mentioned uplink RMC is similar with downlink CIC, for the signal of a low frequency, low modulation depth to upper The intensity that row sends optical signal carries out amplitude modulation and generates.Wherein, the low frequency, low modulation depth signal can be independent Sine wave signal, independent non-return to zero code signal, the superposition of multiple sine wave signals or sine wave signal and non-return to zero code signal Superposition.

RMC may be present in during port match, also be present in regular traffic data transmission procedure.

When TEE carries out information transmission to HEE by RMC, it may cause the TEE and send optical signal at target frequency Amplitude changes, therefore TEE is needed to send transmission request to HEE first, obtained before carrying out information transmission by RMC After the transmission of HEE allows confirmation, TEE just begins through RMC and uploads data, to exclude system risk caused by HEE is malfunctioned.

Certainly, in practice, TEE directly can also report information to HEE transmission by RMC.

It is reported in information in TEE to what HEE was transmitted, the exception reporting information of related status information, TEE including TEE, net Network Operation Administration and Maintenance (English: Operation Administration and Maintenance, referred to as: OAM) information. The related status information of TEE includes TEE state machine state, transmitting optical power, received optical power, operation wavelength (frequency) and partially Difference, downlink CIC channel status, laser temperature, laser operating parameters, optical module essential information etc..The exception reporting of TEE is believed Breath includes that downlink CIC information loses, receives abnormal CIC information command, power adjustment are abnormal, power adjustment precision is abnormal etc. Situation.OAM Information includes: 1, network element relevant information (such as site information, facility information, port information, single board information)； 2, service related information (such as type of service, service rate)；3, warning to early warning (including equipment state warning, business it is related Warning, optical power are related to frequency, laser etc.)；4, TEE upgrade information and software, OAM channel requirements etc..

As seen from the above description, the embodiment of the invention provides a kind of port automatic matching methods, when with Wavelength tunable When the TEE of humorous ability accesses network, by the method for the invention can automatically will transmission optical wavelength be tuned to target wavelength channel.Benefit Each TEE pilot signal sent is analyzed and processed with WLU, by the difference of pilot carrier frequency, is distinguished from the upper of different TEE Traveling optical signal.The length scanning stop position of TEE is determined by the Amplitude maxima at target pilot, it can be achieved that multiple TEE are same When access network, realize network port Auto-matching.

Further, detection of the HEE based on pilot signal can be improved by control scanning stepping and scanning range parameter Port Auto-matching speed, while guaranteeing that TEE scanning standing wave is long in WLU normal range of operation, guarantee that port success is real It is existing Wavelength matched.

Based on the same inventive concept, the embodiment of the present invention also provides a kind of port match device, for realizing side shown in Fig. 2 Method.As shown in figure 9, the port match device includes: transmission unit 301, for n TEE send respectively the first pilot parameters, First sweep parameter and beginning scan command；First pilot parameters include the first pilot carrier frequency, each TEE is corresponding First pilot carrier frequency is different；First sweep parameter includes the first scanning stepping and the first scanning range；N is positive whole Number；Receiving unit 302, for receiving the first scanning that m TEE is sent respectively with first sweep parameter in the n TEE Optical signal；Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the first pilot tone of each TEE The information of frequency；M is the positive integer less than or equal to n；Processing unit 303, for being determined according to the first scanning optical signal Whether there is the transmission optical wavelength of the first TEE to match with target wavelength channel；Transmission unit 301 is also used to when there are described first When TEE, the first TEE of Xiang Suoshu, which is sent, stops scan command.

Optionally, processing unit 303 is also used to: being handled first scanning signal, is obtained the first electric signal；Institute State whether range value of first electric signal at the first pilot carrier frequency corresponding with each TEE is more than preset threshold；Wherein, When there is range value to be more than the preset threshold, indicate that there are the transmission optical wavelength of the first TEE to match with target wavelength channel, and And range value is the first TEE more than the corresponding TEE of the first pilot carrier frequency at the preset value.

Optionally, transmission unit 301 is also used to: the first TEE of Xiang Suoshu sends the second sweep parameter, wherein described second Sweep parameter includes the second scanning stepping and the second scanning range；The second scanning stepping is less than the first scanning stepping, And/or second scanning range is less than first scanning range；

Receiving unit 302 is also used to: receiving the second scanning light letter that the first TEE is sent with second sweep parameter Number；

Processing unit 303 is also used to: when determining that the first TEE is scanned in second scanning range, described second Amplitude of corresponding second electric signal of scanning optical signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

Optionally, the processing unit is also used to: determining that the first TEE is completed once in second scanning range When scanning, described second scans corresponding second electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE Amplitude maxima；When determining that the first TEE carries out second of scanning in second scanning range, the second scanning light Amplitude of corresponding second electric signal of signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value.

Optionally, processing unit 303 is also used to: will carry out photoelectricity by the second scanning optical signal of wavelength calibration tool Third electric signal is obtained after conversion；Second electric signal is obtained at corresponding first pilot carrier frequency of the first TEE Amplitude reaches the third electric signal and second electric signal when maximum value；According to the third electric signal and described Second electric signal determines wavelength offset information；

Transmission unit 301 is also used to: the wavelength offset information being sent to the first TEE, so that the first TEE The current wavelength can be adjusted according to the wavelength offset information.

Optionally, processing unit 303 is also used to: second electric signal when acquisition amplitude reaches the maximum value corresponds to It is described second scanning optical signal optical power；Determine intended recipient optical power；Wherein, the intended recipient optical power is greater than industry The sum of receiving sensitivity and transmission link equivalent power cost of data normal transmission of being engaged in, the minimum less than the first TEE are sent out Optical power and maximum uplink is sent to be lost, the difference of the HEE received optical power detection error；According to the optical power and described The difference of intended recipient optical power determines power adjustment message；

Transmission unit 301 is also used to: the power adjustment message being sent to the first TEE, so that the first TEE Transmitting optical power is adjusted according to the power adjustment message.

Optionally, transmission unit 301 is also used to: sending first respectively to the n TEE by control information channel CIC Pilot parameters, the first sweep parameter and beginning scan command.

Optionally, processing unit 303 is also used to: the signal using a low frequency, low modulation depth believes business datum light Number intensity carry out amplitude modulation and generate the CIC.

Optionally, transmission unit 301 is also used to: Xiang Suoshu n TEE sends transmitting optical power or the institute of the HEE respectively State the transmitting optical power range of HEE；So that the n TEE is capable of the hair of transmitting optical power or the HEE based on the HEE The initial transmitting optical power for sending reference optical power to determine itself.

Optionally, processing unit 303 is also used to: determination is swept in first scanning range in the first TEE When retouching, described first scans width of corresponding first electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE Degree reaches maximum value.

Optionally, processing unit 303 is used for: determination is completed once in the first TEE in first scanning range After scanning, described first scans corresponding first electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE Amplitude maxima；When determining that the first TEE carries out second of scanning in first scanning range, the first scanning light Amplitude of corresponding first electric signal of signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value.

Optionally, processing unit 303 is also used to: will carry out photoelectricity by the first scanning optical signal of wavelength calibration tool The 4th electric signal is obtained after conversion；First electric signal is obtained at corresponding first pilot carrier frequency of the first TEE Amplitude reaches the 4th electric signal and first electric signal when maximum value；According to the 4th electric signal and described First electric signal determines wavelength offset information；

Optionally, processing unit 303 is also used to: first electric signal when acquisition amplitude reaches the maximum value corresponds to It is described first scanning optical signal optical power；Determine intended recipient optical power；Wherein, the intended recipient optical power is greater than industry The sum of receiving sensitivity and transmission link equivalent power cost of data normal transmission of being engaged in, the minimum less than the first TEE are sent out Optical power and maximum uplink is sent to be lost, the difference of the HEE received optical power detection error；According to the optical power and described The difference of intended recipient optical power determines power adjustment message；

Optionally, when m is less than n, transmission unit 301 is also used to: Xiang Suoshu n TEE sends target wavelength respectively；Its In, the target wavelength is each TEE wavelength to be finally tuned to, the mutual not phase of the corresponding target wavelength of described each TEE Together；

Receiving unit 302 is also used to: the n-m TEE that n-m TEE of reception is sent respectively is respective to report optical signal, It is described that optical signal is reported to correspond to respective first pilot carrier frequency, it is described that optical signal is reported to be used to indicate the n-m TEE with wave Long lock function；

Transmission unit 301 is also used to: reporting optical signal to cease and desist order to n-m TEE transmission scanning according to described.

Optionally, processing unit 303 is also used to: will be by reporting optical signal to carry out photoelectric conversion described in wavelength calibration tool First is obtained later reports electric signal；Reported optical signal is carried out photoelectric conversion, and obtaining second reports electric signal later；According to Described first reports electric signal and described second that electric signal is reported to determine wavelength offset information；

Transmission unit 301 is also used to: the wavelength offset information being sent respectively to corresponding TEE, so that the n-m TEE can adjust the target wavelength according to the corresponding wavelength offset information.

Optionally, processing unit 303 is also used to: the optical power of optical signal is reported described in acquisition；Determine intended recipient light function Rate；Wherein, the intended recipient optical power is greater than the receiving sensitivity and transmission link equivalent power of business datum normal transmission The sum of cost is less than corresponding minimum transmitting optical power and maximum uplink loss, HEE reception in the n-m TEE The difference of optical power detection error；Power adjustment message is determined according to the difference of the optical power and the intended recipient optical power；

Transmission unit 301 is also used to: the power adjustment message being sent respectively to the n-m TEE, so that the n- M TEE adjusts transmitting optical power according to corresponding power adjustment message.

Optionally, first pilot parameters further include the first pilot modulated depth, and transmission unit 301 is also used to: to institute It states n-m TEE and sends the second pilot parameters and regular traffic transmission order respectively；Wherein, second pilot parameters include the Two pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

Optionally, first pilot parameters further include the first pilot modulated depth, and transmission unit 301 is also used to: to institute It states the first TEE and sends the second pilot parameters and regular traffic transmission order；Wherein, second pilot parameters include the second pilot tone Depth；The second pilot tone depth is less than the first pilot modulated depth.

Optionally, receiving unit 302 is also used to: receiving the transmission request that the 2nd TEE in the n TEE is sent；It is described Transmission request reports information from report information channel RMC for requesting；

Transmission unit 301 is also used to: the 2nd TEE of Xiang Suoshu sends confirmation message, to indicate that it is described that the 2nd TEE passes through RMC reports information.

Various change mode in port match method and specific example in aforementioned embodiment shown in Fig. 2 is equally applicable In the port match device of the present embodiment, by the aforementioned detailed description to port matching process, those skilled in the art can be with It is apparent from the implementation method of the present embodiment middle port coalignment, so this will not be detailed here in order to illustrate the succinct of book.

Based on the same inventive concept, the embodiment of the present invention also provides a kind of port match device, for realizing Fig. 3 and Fig. 4 Shown method.As shown in Figure 10, which includes: receiving unit 401, for receiving headend HEE transmission First pilot parameters, the first sweep parameter；Wherein, the first pilot parameters include the first pilot carrier frequency；First sweep parameter Including the first scanning stepping and the first scanning range；Transmission unit 402, for starting to scan receive that the HEE sends When order, and when the TEE is TEE without wavelength locking function, swept according to first pilot carrier frequency and described first It retouches parameter and starts to send the first scanning optical signal to the HEE；Processing unit 403, for receiving stopping for the HEE transmission Only when scan command, stop length scanning, keeps current wavelength constant.

Optionally, receiving unit 401 is also used to: in transmission unit 402 according to first pilot carrier frequency and described first While sweep parameter starts to send scanning optical signal to the HEE, persistently detect whether to receive the HEE is sent second Sweep parameter；Wherein, second sweep parameter includes the second scanning stepping and the second scanning range；

Transmission unit 402 is also used to: in second sweep parameter and the first sweep parameter difference, according to described First pilot carrier frequency and second sweep parameter start to send the second scanning optical signal to the HEE.

Optionally, when the TEE is the TEE with wavelength locking function, receiving unit 401 is also used to receive described The target wavelength that HEE is sent；

Processing unit 403 is also used to: the transmission wavelength of optical transmitter is tuned to the target wavelength；

Transmission unit 402 is also used to: when receiving the beginning scan command that the HEE is sent, being led according to described first Frequent rate reports optical signal to HEE transmission；Wherein, described that optical signal is reported to be used to indicate the TEE to lock with wavelength Determine the TEE of function；

Processing unit 403 is also used to: when receiving the stopping scan command that the HEE is sent, stopping sending on described Optical signal is reported, and keeps current wavelength constant.

Optionally, processing unit 403 is also used to: in the wavelength offset information or power adjustment for receiving the HEE transmission After information, the current wavelength is adjusted according to the wavelength offset information, or the TEE is adjusted according to the power adjustment message Transmitting optical power.

Optionally, receiving unit 401 is also used to: receiving the initial power adjustment information that the HEE is sent；

Processing unit 403 is also used to: the initial transmission light of transmission unit 402 is determined according to the initial power adjustment information Power.

Optionally, the initial power adjustment information is the transmitting optical power of the HEE, and processing unit 403 is used for: according to The received optical power of the transmitting optical power and the TEE determine link load；Determine that the initial transmitting optical power is not small In the scanning optical signal of the TEE reach the minimum optical power of the HEE, the link load and power headroom three it The value of sum.

Optionally, the initial power adjustment information is the transmitting optical power range of the HEE, and processing unit 403 is used for: Determine that any transmitting optical power within the scope of the transmitting optical power of the HEE is the initial transmitting optical power.

Optionally, transmission unit 402 is also used to: Xiang Suoshu HEE sends transmission request；Transmission request for request from Report information channel RMC reports information；And after the confirmation message that receiving unit 401 receives that the HEE is sent, pass through institute It states RMC and reports information to HEE transmission.

Optionally, transmission unit 402 is also used to: reporting information to HEE transmission by report information channel RMC.

Optionally, processing unit 403 is also used to: the signal using a low frequency, low modulation depth believes business datum light Number intensity carry out amplitude modulation and generate the RMC.

Optionally, first pilot parameters further include the first pilot modulated depth, and transmission unit 402 is also used to: when connecing After receiving the second pilot parameters and the regular traffic transmission order that unit 401 receives the HEE transmission, start to send regular traffic Optical signal simultaneously persistently generates corresponding pilot signal according to second pilot parameters；Wherein, second pilot parameters include the Two pilot modulated depth, the second pilot modulated depth are less than the first pilot modulated depth.

Optionally, before the beginning scan command that receiving unit 401 receives HEE transmission, processing unit 403 is also used to Parameter configuration is carried out to the TEE according to first pilot parameters, first sweep parameter；When receiving unit 401 receives To HEE send shutdown command when, processing unit 403 stop Parameter Configuration process simultaneously by before configuration reset.

Optionally, during stopping length scanning, when receiving unit 401 receives the aberrant commands of HEE transmission, hair Send unit 402 stop send it is described first scanning optical signal, receiving unit 401 receive HEE send new tuning information and New scanning initiation command, transmission unit 402 send new scanning optical signal to HEE according to new tuning information；Wherein, it tunes Information includes pilot parameters and sweep parameter；The aberrant commands include target wavelength, pilot parameters, Power initializations order with And start any one in scan command or any combination.

Various change mode in port match method and specific example in earlier figures 3 and embodiment shown in Fig. 4 is same Sample is suitable for the port match device of the present embodiment, passes through the aforementioned detailed description to port matching process, those skilled in the art Member is clear that the implementation method of the present embodiment middle port coalignment, so in order to illustrate the succinct of book, herein not It is described in detail again.

Based on the same inventive concept, the embodiment of the present invention also provides a kind of HEE, for realizing method shown in Fig. 2.Such as Fig. 1 With shown in Figure 11, which includes: optical transmitter, for sending the first pilot parameters respectively to n tail end equipment TEE, first sweeping It retouches parameter and starts scan command；First pilot parameters include the first pilot carrier frequency, each TEE corresponding first is led Frequent rate is different；First sweep parameter includes the first scanning stepping and the first scanning range；N is positive integer；Wavelength Lock cell (WLU), for receiving the first scanning that m TEE is sent respectively with first sweep parameter in the n TEE Optical signal；Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the first pilot tone of each TEE The information of frequency；M is the positive integer less than or equal to n；And determine whether the first TEE's according to the first scanning optical signal Optical wavelength is sent to match with target wavelength channel；Controller, for when there are a TEE, controlling the optical transmitter It is sent to the first TEE and stops scan command.

Optionally, the quantity of optical transmitter can be one, while the signal of multiple wavelength being supported to send.

Optionally, the quantity of optical transmitter with n, can support respectively the signal transmission an of wavelength, one by one with n TEE It is corresponding.

Optionally, optical transmitter and optical receiver be may be physically mutually independent, both is also possible to be integrated in Together, optical transceiver is formed.

Wherein, controller is connect with wavelength locking unit and optical transmitter.

Optionally, HEE further includes MD, then controller is connect by MD with optical transmitter.

Optionally, HEE further includes OM/OD, purposes foregoing description Fig. 1 when, by the agency of mistake, so herein no longer It repeats.

Optionally, HEE further includes power splitter, for uplink wavelength-division multiplex signals to be divided into two-way, enters light all the way and receives and dispatches Device is introduced into OM/OD, enters back into optical transceiver.Another way is directly entered wavelength-division lock cell.

Optionally, as shown in figure 11, wavelength locking unit includes the first electrooptical device and processing circuit.First photoelectricity Switching device is, for example, photodiode.Wherein, the first scanning optical signal can be exported directly from power splitter shown in Fig. 1 to the One electrooptical device, can also be as shown in figure 11, and the first scanning optical signal is exported via optical splitter to the first photoelectric conversion Device.Therefore, wavelength locking unit can also include optical splitter.

Processing circuit is used to determine width of first electric signal at the first pilot carrier frequency corresponding with each TEE Whether angle value is more than preset threshold；Wherein, when there is range value to be more than the preset threshold, indicate that there are the transmissions of the first TEE Optical wavelength is matched with target wavelength channel, and range value is more than the corresponding TEE of the first pilot carrier frequency at the preset value First TEE.

Optionally, control unit is also used to: when there are a TEE, being sent in control optical transmitter to the first TEE Before stopping scan command, control optical transmitter sends the second sweep parameter to the first TEE, wherein the second sweep parameter includes Second scanning stepping and the second scanning range；The second scanning stepping is less than the first scanning stepping and/or described second Scanning range is less than first scanning range；

First electrooptical device is also used to receive the second scanning that the first TEE is sent with second sweep parameter Optical signal；

When processing circuit is also used to determine that the first TEE is scanned in second scanning range, second scanning Amplitude of corresponding second electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

Optionally, processing circuit is used for: determining that the first TEE completes single pass in second scanning range When, obtained the second electric signal of photoelectric conversion is carried out in institute to the second scanning optical signal through first electrooptical device State the Amplitude maxima at corresponding first pilot carrier frequency of the first TEE；And determine the first TEE in second scanning range When interior second of scanning of progress, photoelectric conversion is carried out to the second scanning optical signal through first electrooptical device and is obtained Amplitude of second electric signal at corresponding first pilot carrier frequency of the first TEE reach the maximum value.

Optionally, as shown in figure 11, wavelength locking unit further include wavelength calibration tool and the second electrooptical device, first The output end of the output end of electrooptical device and the second electrooptical device is connected to the input terminal of processing circuit.Processing electricity The output end on road is connected to control unit.Wavelength calibration tool for example, etalon wavelength calibration tool.Second electrooptical device example For example photodiode.

Second electrooptical device will be for that will carry out photoelectricity by the second scanning optical signal of wavelength calibration tool Third electric signal is obtained after conversion；

Processing circuit is also used to: obtaining second electric signal at corresponding first pilot carrier frequency of the first TEE Amplitude reaches the third electric signal and second electric signal when maximum value；According to the third electric signal and described Second electric signal determines wavelength offset information；

Controller is also used to: the optical transmitter, which controlled, by the wavelength offset information is sent to the first TEE, so that First TEE can adjust the current wavelength according to the wavelength offset information.

Optionally, processing circuit is also used to: second electric signal when acquisition amplitude reaches the maximum value is corresponding The optical power of the second scanning optical signal；Determine intended recipient optical power；Wherein, the intended recipient optical power is greater than business The sum of receiving sensitivity and transmission link equivalent power cost of data normal transmission, the minimum less than the first TEE are sent The difference of optical power and maximum uplink loss, the HEE received optical power detection error；According to the optical power and the mesh The difference of mark received optical power determines power adjustment message；

Controller is also used to: the optical transmitter, which controlled, by the power adjustment message is sent to the first TEE, so that First TEE adjusts transmitting optical power according to the power adjustment message.

Optionally, optical transmitter described in the controller is sent by controlling information channel CIC to the n TEE respectively First pilot parameters, the first sweep parameter and beginning scan command.

Optionally, the HEE further includes modulating driver (MD), for using the signal an of low frequency, low modulation depth Amplitude modulation is carried out to the intensity of business datum optical signal and generates the CIC.

Optionally, the controller is also used to: being controlled the optical transmitter to the n TEE and is sent the HEE's respectively The transmitting optical power range of transmitting optical power or the HEE；So that the n TEE can be based on the transmitting optical power of the HEE Or the transmitting optical power range of the HEE determines the initial transmitting optical power of itself.

Optionally, as shown in figure 11, wavelength locking unit further includes the first electrooptical device and processing circuit,

Optionally, the processing circuit is used for: determination is completed once in the first TEE in first scanning range After scanning, the first electric signal that photoelectric conversion obtains is carried out to the first scanning optical signal through first electrooptical device Amplitude maxima at corresponding first pilot carrier frequency of the first TEE；Determine the first TEE in the first scanning model When enclosing interior second of scanning of progress, photoelectric conversion is carried out to the first scanning optical signal through first electrooptical device and is obtained To amplitude of first electric signal at corresponding first pilot carrier frequency of the first TEE reach the maximum value.

Optionally, as shown in figure 11, the wavelength locking unit further include wavelength calibration tool and the second electrooptical device,

Optionally, the processing circuit is also used to: acquisition amplitude reaches first electric signal pair when the maximum value The optical power for the first scanning optical signal answered；Determine intended recipient optical power；Wherein, the intended recipient optical power is greater than The sum of receiving sensitivity and transmission link equivalent power cost of business datum normal transmission, less than the minimum of the first TEE The difference of transmitting optical power and maximum uplink loss, the HEE received optical power detection error；According to the optical power and institute The difference for stating intended recipient optical power determines power adjustment message；

Optionally, when m is less than n, the controller is also used to: being controlled the optical transmitter and is sent out respectively to the n TEE Send target wavelength；Wherein, the target wavelength is each TEE wavelength to be finally tuned to, the corresponding mesh of described each TEE It is different to mark wavelength；

Optionally, as shown in figure 11, the wavelength locking unit includes wavelength calibration tool, the first electrooptical device, Two electrooptical devices and processing circuit,

Optionally, the wavelength locking unit is also used to: the optical power of optical signal is reported described in acquisition；Determine intended recipient Optical power；Wherein, the intended recipient optical power is equivalent greater than the receiving sensitivity of business datum normal transmission and transmission link The sum of Power penalty is less than corresponding minimum transmitting optical power and maximum uplink loss, the HEE in the n-m TEE The difference of received optical power detection error；Determine that power adjustment is believed according to the difference of the optical power and the intended recipient optical power Breath；

Optionally, first pilot parameters further include the first pilot modulated depth, and the controller is also used to: control institute It states optical transceiver and sends the second pilot parameters and regular traffic transmission order respectively to the n-m TEE；Wherein, described second Pilot parameters include the second pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

Optionally, first pilot parameters further include the first pilot modulated depth, and the controller is also used to: control institute It states optical transceiver and sends the second pilot parameters and regular traffic transmission order to the first TEE；Wherein, the second pilot tone ginseng Number includes the second pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

Optionally, the HEE further includes optical receiver, for receiving the transmission of the transmission of the 2nd TEE in the n TEE Request；The transmission request reports information from report information channel RMC for requesting；

Various change mode in port match method and specific example in aforementioned embodiment shown in Fig. 2 is equally applicable In the HEE of the present embodiment, by the aforementioned detailed description to port matching process, those skilled in the art are clear that The implementation method of HEE in the present embodiment, so this will not be detailed here in order to illustrate the succinct of book.

Based on the same inventive concept, the embodiment of the present invention also provides a kind of TEE, for realizing method shown in Fig. 3 and Fig. 4. As shown in figure 12, which includes: controller 501, optical receiver 502, optical transmitter 503, memory 504.Controller 501 has Body can be central processing unit, application-specific integrated circuit (English: Application Specific Integrated Circuit, referred to as: ASIC), it can be one or more integrated circuits executed for controlling program, can be use site The hardware circuit of programmable gate array (English: Field Programmable Gate Array, abbreviation: FPGA) exploitation.Storage The quantity of device 504 can be one or more.Memory 504 may include read-only memory (English: Read Only Memory, referred to as: ROM), random access memory (English: Random Access Memory, referred to as: RAM) and disk storage Device.Optical receiver 502 and optical transmitter 503 physically can be mutually indepedent, or integrate.

Specifically, optical receiver 502, for receiving the first pilot parameters, the first scanning ginseng of headend HEE transmission Number；Wherein, the first pilot parameters include the first pilot carrier frequency；First sweep parameter includes that the first scanning stepping and first is swept Retouch range；Optical transmitter 503, for when receiving the beginning scan command that the HEE is sent, and the TEE be without When the TEE of wavelength locking function, started to send the first scanning light according to first pilot carrier frequency and first sweep parameter Signal gives the HEE；Controller 501 is received for when receiving the stopping scan command that the HEE is sent, controlling the light It sends out device and stops length scanning, keep current wavelength constant.

Optionally, controller 501 is also used to: while optical transmitter 503 sends scanning optical signal to the HEE, being led to Optical receiver 502 is crossed persistently to detect whether to receive the second sweep parameter that the HEE is sent；Wherein, the second scanning ginseng Number includes the second scanning stepping and the second scanning range；In second sweep parameter and the first sweep parameter difference, The second scanning optical signal is sent to described according to first pilot carrier frequency and second sweep parameter control optical transmitter 503 HEE。

Optionally, when the TEE is the TEE with wavelength locking function, optical receiver 502 is also used to: described in reception The target wavelength that HEE is sent；

The transmission wavelength of optical transmitter 503 is tuned to the target wave for controlling optical transmitter 503 by controller 501 It is long；

Controller 501 is also used to: when receiving the beginning scan command that the HEE is sent, according to first pilot tone Frequency reports optical signal to HEE transmission by optical transmitter 503；Wherein, described that optical signal is reported to be used to indicate the TEE For the TEE with wavelength locking function；When receiving the stopping scan command that the HEE is sent, control optical transmitter 503 stops Optical signal is reported described in only sending, and keeps current wavelength constant.

Optionally, controller 501 is also used to: receiving the wavelength offset information or power adjustment letter that the HEE is sent After breath, the current wavelength is adjusted according to the wavelength offset information, or optical transmitter is adjusted according to the power adjustment message 503 transmitting optical power.

Optionally, optical receiver 502 is also used to: before receiving the beginning scan command that the HEE is sent, receiving institute State the initial power adjustment information of HEE transmission；

Controller 501 is also used to: the initial transmission light function of optical transmitter 503 is determined according to the initial power adjustment information Rate.

Optionally, the initial power adjustment information is the transmitting optical power of the HEE, and controller 501 is used for, according to institute The received optical power for stating transmitting optical power and the TEE determines link load；Determine the initial transmitting optical power be not less than The scanning optical signal of the TEE reaches the sum of minimum optical power, the link load and three of power headroom of the HEE Value.

Optionally, the initial power adjustment information is the transmitting optical power range of the HEE, and controller 501 is used for: institute It states TEE and determines that any transmitting optical power within the scope of the transmitting optical power of the HEE is the initial transmitting optical power.

Optionally, controller 501 is also used to: sending transmission request to the HEE by optical transmitter 503；The transmission Request reports information from report information channel RMC for requesting；And after receiving the confirmation message that the HEE is sent, lead to It crosses the RMC and reports information to HEE transmission.

Optionally, controller 501 is also used to: reporting information to HEE transmission by report information channel RMC.

Optionally, the TEE further includes modulating driver, for using the signal an of low frequency, low modulation depth to industry The intensity of business data optical signal carries out amplitude modulation and generates the RMC.

Optionally, first pilot parameters further include the first pilot modulated depth, and controller 501 is also used to: working as reception After sending order to the HEE the second pilot parameters sent and regular traffic, control optical transmitter 503 starts to send normal industry Business optical signal simultaneously persistently generates corresponding pilot signal according to second pilot parameters；Wherein, second pilot parameters include Second pilot modulated depth, the second pilot modulated depth are less than the first pilot modulated depth.

Optionally, controller 501 is also used to according to first pilot parameters, first sweep parameter to optical transmitter 503 carry out parameter configuration；And when optical receiver 502 receives the shutdown command that the HEE is sent, stop Parameter Configuration process And configuration before is reset.

Optionally, optical receiver 502 is also used to: during the stopping length scanning, being sent out when receiving the HEE When the aberrant commands sent, controller 501, which controls optical transmitter 503, to be stopped sending the first scanning optical signal, and is controlled light and connect It receives device 502 and receives new tuning information and NEW BEGINNING scan command that the HEE is sent；Optical transmitter 503 is also used to: being pressed New scanning optical signal is sent to the HEE according to the new tuning information；The tuning information includes pilot parameters and scanning Parameter.

Various change mode in port match method and specific example in earlier figures 3 and embodiment shown in Fig. 4 is same Sample is suitable for the TEE of the present embodiment, and by the aforementioned detailed description to port matching process, those skilled in the art can understand The implementation method for knowing TEE in the present embodiment, so this will not be detailed here in order to illustrate the succinct of book.

The one or more technical solutions provided in application embodiment, have at least the following technical effects or advantages:

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of port match method characterized by comprising

Headend HEE sends the first pilot parameters, the first sweep parameter to n tail end equipment TEE respectively and starts to scan Order；First pilot parameters include the first pilot carrier frequency, and corresponding first pilot carrier frequency of each TEE is different；Institute Stating the first sweep parameter includes the first scanning stepping and the first scanning range；N is positive integer；

The HEE receives the first scanning optical signal that m TEE is sent respectively with first sweep parameter in the n TEE； Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the letter of the first pilot carrier frequency of each TEE Breath；M is the positive integer less than or equal to n；

The HEE determines whether transmission optical wavelength and the target wavelength channel of the first TEE according to the first scanning optical signal Matching；

2. the method as described in claim 1, which is characterized in that the HEE determines whether according to the first scanning optical signal There is the transmission optical wavelength of the first TEE to match with target wavelength channel, comprising:

The HEE handles first scanning signal, obtains the first electric signal；

Whether the HEE determines range value of first electric signal at the first pilot carrier frequency corresponding with each TEE More than preset threshold；Wherein, when have range value be more than the preset threshold when, indicate exist the transmission optical wavelength of the first TEE and The matching of target wavelength channel, and it is described first that range value, which is more than the corresponding TEE of the first pilot carrier frequency at the preset value, TEE。

3. method according to claim 1 or 2, which is characterized in that when there are a TEE, to the first TEE It sends before stopping scan command, the method also includes:

The HEE sends the second sweep parameter to the first TEE, wherein second sweep parameter includes the second scanning step Into with the second scanning range；The second scanning stepping is less than the first scanning stepping and/or second scanning range is small In first scanning range；

When the HEE determines that the first TEE is scanned in second scanning range, the second scanning optical signal is corresponding Amplitude of second electric signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

4. method as claimed in claim 3, which is characterized in that the HEE determines the first TEE in the second scanning model When enclosing interior scanning, described second scans corresponding second electric signal of optical signal in corresponding first pilot carrier frequency of the first TEE The amplitude at place reaches maximum value, comprising:

When the HEE determines that the first TEE completes single pass in second scanning range, the second scanning light letter Number Amplitude maxima of corresponding second electric signal at corresponding first pilot carrier frequency of the first TEE；

When the HEE determines that the first TEE carries out second of scanning in second scanning range, the second scanning light Amplitude of corresponding second electric signal of signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value.

5. method as claimed in claim 3, which is characterized in that the method also includes:

The HEE will carry out obtaining third telecommunications after photoelectric conversion by the second scanning optical signal of wavelength calibration tool Number；

The HEE obtains amplitude of second electric signal at corresponding first pilot carrier frequency of the first TEE and reaches described The third electric signal and second electric signal when maximum value；

The wavelength offset information is sent to the first TEE by the HEE, so that the first TEE can be according to the wave Long deviation information adjusts current wavelength.

6. method as described in claim 4 or 5, which is characterized in that the method also includes:

The HEE obtains second electric signal corresponding described second when amplitude reaches the maximum value and scans optical signal Optical power；

The HEE determines intended recipient optical power；Wherein, the intended recipient optical power is greater than connecing for business datum normal transmission Receive the sum of sensitivity and transmission link equivalent power cost, the minimum transmitting optical power less than the first TEE and maximum uplink The difference of link load, the HEE received optical power detection error；

The power adjustment message is sent to the first TEE by the HEE, so that the first TEE is according to the power tune Whole information adjusts transmitting optical power.

7. the method as described in claims 1 or 2 or 4 or 5, which is characterized in that the headend HEE is to n tail end equipment TEE sends the first pilot parameters, the first sweep parameter respectively and starts scan command, comprising:

The HEE by control information channel CIC to the n TEE send respectively the first pilot parameters, the first sweep parameter with And start scan command.

8. the method for claim 7, which is characterized in that in the HEE by control information channel CIC to the n Before TEE sends the first pilot parameters, the first sweep parameter respectively and starts scan command, the method also includes:

The HEE carries out amplitude modulation life to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth At the CIC.

9. the method as described in claims 1 or 2 or 4 or 5, which is characterized in that the method also includes:

The HEE sends the transmitting optical power of the HEE or the transmitting optical power range of the HEE to the n TEE respectively； So that the n TEE can determine itself based on the transmitting optical power of the HEE or the transmitting optical power range of the HEE Initial transmitting optical power.

10. the method as described in claim 1, which is characterized in that when there are a TEE, sent out to the first TEE It send before stopping scan command, the method also includes:

The HEE determines that when the first TEE is scanned in first scanning range, described first scans optical signal Amplitude of corresponding first electric signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

11. method as claimed in claim 10, which is characterized in that the HEE determination is swept in the first TEE described first It retouches when being scanned in range, corresponding first electric signal of the first scanning optical signal is in the first TEE corresponding first Amplitude at pilot carrier frequency reaches maximum value, comprising:

The HEE determines that after the first TEE completes single pass in first scanning range, described first scans light Amplitude maxima of corresponding first electric signal of signal at corresponding first pilot carrier frequency of the first TEE；

When the HEE determines that the first TEE carries out second of scanning in first scanning range, the first scanning light Amplitude of corresponding first electric signal of signal at corresponding first pilot carrier frequency of the first TEE reaches the maximum value.

12. method as described in claim 10 or 11, which is characterized in that the method also includes:

The HEE will carry out obtaining the 4th telecommunications after photoelectric conversion by the first scanning optical signal of wavelength calibration tool Number；

The HEE obtains amplitude of first electric signal at corresponding first pilot carrier frequency of the first TEE and reaches described The 4th electric signal and first electric signal when maximum value；

13. method as described in claim 10 or 11, which is characterized in that the method also includes:

The HEE obtains first electric signal corresponding described first when amplitude reaches the maximum value and scans optical signal Optical power；

14. the method as described in claim 1, which is characterized in that when m is less than n, receive m in the n TEE in the HEE Before a TEE scans optical signal respectively with the first of first sweep parameter transmission, the method also includes:

The HEE sends target wavelength to the n TEE respectively；Wherein, the target wavelength is that each TEE will finally be tuned Wavelength extremely, the corresponding target wavelength of described each TEE are different；

The HEE receives that the n-m TEE that n-m TEE is sent respectively is respective to report optical signal, described that light is reported to believe Number corresponding respective first pilot carrier frequency, it is described to report optical signal to be used to indicate the n-m TEE to have the function of wavelength locking；

15. method as claimed in claim 14, which is characterized in that the method also includes:

The HEE will obtain first after reporting optical signal to carry out photoelectric conversion described in wavelength calibration tool and report telecommunications Number；

The wavelength offset information is sent respectively to corresponding TEE by the HEE, so that the n-m TEE can be according to right The wavelength offset information answered adjusts the target wavelength.

16. the method as described in claims 14 or 15, which is characterized in that the method also includes:

The HEE determines intended recipient optical power；Wherein, the intended recipient optical power is greater than connecing for business datum normal transmission Receive the sum of sensitivity and transmission link equivalent power cost, be less than in the n-m TEE corresponding minimum transmitting optical power and Maximum uplink loss, the HEE received optical power detection error difference；

The power adjustment message is sent respectively to the n-m TEE by the HEE, so that the n-m TEE is according to each The self-corresponding power adjustment message adjusts transmitting optical power.

17. the method as described in claims 14 or 15, which is characterized in that first pilot parameters further include the first pilot tone tune Depth processed, the method also includes:

The HEE sends the second pilot parameters respectively to the n-m TEE and regular traffic sends order；Wherein, described Two pilot parameters include the second pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

18. the method as described in claims 1 or 2 or 4 or 5 or 8 or 10 or 11, which is characterized in that first pilot parameters It further include the first pilot modulated depth, the method also includes:

The HEE sends the second pilot parameters to the first TEE and regular traffic sends order；Wherein, second pilot tone Parameter includes the second pilot tone depth；The second pilot tone depth is less than the first pilot modulated depth.

19. the method as described in claims 1 or 2 or 4 or 5 or 8 or 10 or 11 or 14 or 15, which is characterized in that the method Further include:

The HEE receives the transmission request of the transmission of the 2nd TEE in the n TEE；The transmission request is for requesting from report Information channel RMC reports information；

The HEE sends confirmation message to the 2nd TEE, to indicate that the 2nd TEE reports information by the RMC.

20. a kind of port match method characterized by comprising

Tail end equipment TEE receives the first pilot parameters, the first sweep parameter that headend HEE is sent；Wherein, the first pilot tone is joined Number includes the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

The TEE is when receiving the beginning scan command that the HEE is sent, and the TEE is without wavelength locking function TEE when, according to first pilot carrier frequency and first sweep parameter start send first scanning optical signal to described HEE；

The TEE stops length scanning when receiving the stopping scan command that the HEE is sent, and keeps current wavelength constant.

21. method as claimed in claim 20, which is characterized in that the method also includes:

The TEE is starting to send scanning optical signal to described according to first pilot carrier frequency and first sweep parameter While HEE, persistently detect whether to receive the second sweep parameter that the HEE is sent；Wherein, the second sweep parameter packet Include the second scanning stepping and the second scanning range；

The TEE in second sweep parameter and when the first sweep parameter difference, according to first pilot carrier frequency and Second sweep parameter starts to send the second scanning optical signal to the HEE.

22. method as claimed in claim 20, which is characterized in that when the TEE is the TEE with wavelength locking function, The method also includes:

The TEE receives the target wavelength that the HEE is sent；

The TEE is when receiving the beginning scan command that the HEE is sent, according to first pilot carrier frequency to the HEE Transmission reports optical signal；Wherein, described that optical signal is reported to be used to indicate the TEE as the TEE with wavelength locking function；

The TEE stops reporting optical signal described in transmission when receiving the stopping scan command that the HEE is sent, and keeps Current wavelength is constant.

23. such as the described in any item methods of claim 20-22, which is characterized in that the method also includes:

The TEE is after receiving the wavelength offset information or power adjustment message that the HEE is sent, according to the wavelength offset Information adjusts the current wavelength, or the transmitting optical power of the TEE is adjusted according to the power adjustment message.

24. such as the described in any item methods of claim 20-22, which is characterized in that start to sweep receive that the HEE sends Before retouching order, the method also includes:

25. method as claimed in claim 23, which is characterized in that receive beginning scan command that the HEE is sent it Before, the method also includes:

26. method as claimed in claim 24, which is characterized in that the initial power adjustment information is the transmission of the HEE Optical power, the TEE determine the initial transmitting optical power of the TEE according to the initial power adjustment information, comprising:

The TEE determines that the initial transmitting optical power reaches the minimum of the HEE for the scanning optical signal not less than the TEE Optical power, the link load and power headroom the sum of three value.

27. method as claimed in claim 24, which is characterized in that the initial power adjustment information is the transmission of the HEE Reference optical power, the TEE determine the initial transmitting optical power of the TEE according to the initial power adjustment information, comprising:

The TEE determines that any transmitting optical power within the scope of the transmitting optical power of the HEE is the initial transmitting optical power.

28. such as the described in any item methods of claim 20-22 or 25-27, which is characterized in that the method also includes:

The TEE sends transmission request to the HEE；The transmission request is notified from report information channel RMC for requesting Breath；

The TEE is sent to the HEE by the RMC and is notified after receiving the confirmation message that the HEE is sent Breath.

29. such as the described in any item methods of claim 20-22 or 25-27, which is characterized in that the method also includes:

30. method as claimed in claim 23, which is characterized in that the method also includes:

31. method as claimed in claim 24, which is characterized in that the method also includes:

32. method as claimed in claim 28, which is characterized in that the method also includes:

The TEE carries out amplitude modulation life to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth At the RMC.

33. method as claimed in claim 29, which is characterized in that the method also includes:

34. the method as described in claim 30 or 31, which is characterized in that the method also includes:

35. such as the described in any item methods of claim 20-22 or 25-27 or 30-33, which is characterized in that first pilot tone Parameter further includes the first pilot modulated depth, after the stopping length scanning, the method also includes:

After the TEE receives the second pilot parameters that the HEE is sent and regular traffic sends order, start to send normal Business optical signal simultaneously persistently generates corresponding pilot signal according to second pilot parameters；Wherein, the second pilot parameters packet The second pilot modulated depth is included, the second pilot modulated depth is less than the first pilot modulated depth.

36. such as the described in any item methods of claim 20-22 or 25-27 or 30-33, which is characterized in that connect in the TEE Before receiving the beginning scan command that the HEE is sent, the method also includes:

When the TEE receives the shutdown command that the HEE is sent, stopping Parameter Configuration process is simultaneously clear by configuration before Zero.

37. method as claimed in claim 23, which is characterized in that start to sweep receive that the HEE sends in the TEE Before retouching order, the method also includes:

38. method as claimed in claim 24, which is characterized in that start to sweep receive that the HEE sends in the TEE Before retouching order, the method also includes:

39. method as claimed in claim 29, which is characterized in that start to sweep receive that the HEE sends in the TEE Before retouching order, the method also includes:

40. method as claimed in claim 34, which is characterized in that start to sweep receive that the HEE sends in the TEE Before retouching order, the method also includes:

41. such as the described in any item methods of claim 20-22 or 25-27 or 30-33 or 37-40, which is characterized in that the side Method further include:

During the stopping length scanning, when the TEE receives the aberrant commands that the HEE is sent, the TEE Stop sending the first scanning optical signal and receives new tuning information and NEW BEGINNING scanning life that the HEE is sent It enables, and sends new scanning optical signal to the HEE according to the new tuning information；The tuning information includes pilot parameters And sweep parameter；The aberrant commands include target wavelength, pilot parameters, Power initializations order and start in scan command Any one or any combination.

42. method as claimed in claim 23, which is characterized in that the method also includes:

43. method as claimed in claim 24, which is characterized in that the method also includes:

44. method as claimed in claim 29, which is characterized in that the method also includes:

45. method as claimed in claim 36, which is characterized in that the method also includes:

46. a kind of headend HEE characterized by comprising

Optical transmitter, for sending the first pilot parameters, the first sweep parameter respectively to n tail end equipment TEE and starting to sweep Retouch order；First pilot parameters include the first pilot carrier frequency, and corresponding first pilot carrier frequency of each TEE is different； First sweep parameter includes the first scanning stepping and the first scanning range；N is positive integer；

Wavelength locking unit is swept respectively with the first of first sweep parameter transmission for receiving m TEE in the n TEE Retouch optical signal；Wherein, the first scanning optical signal that each TEE is sent in the m TEE includes the first of each TEE to lead The information of frequent rate；M is the positive integer less than or equal to n；And the first TEE is determined whether according to the first scanning optical signal Transmission optical wavelength matched with target wavelength channel；

Controller stops scanning for when there are a TEE, controlling the optical transmitter and sending to the first TEE Order.

47. headend HEE as claimed in claim 46, which is characterized in that the wavelength locking unit includes the first photoelectricity Switching device and processing circuit,

The processing circuit is used to determine width of first electric signal at the first pilot carrier frequency corresponding with each TEE Whether angle value is more than preset threshold；Wherein, when there is range value to be more than the preset threshold, indicate that there are the transmissions of the first TEE Optical wavelength is matched with target wavelength channel, and range value is more than the corresponding TEE of the first pilot carrier frequency at the preset value First TEE.

48. headend HEE as claimed in claim 47, which is characterized in that

Described control unit is also used to: when there are a TEE, being sent out controlling the optical transmitter to the first TEE It send before stopping scan command, controls the optical transmitter to the first TEE and send the second sweep parameter, wherein described the Two sweep parameters include the second scanning stepping and the second scanning range；The second scanning stepping is less than the first scanning step Into and/or second scanning range be less than first scanning range；

When the processing circuit is also used to determine that the first TEE is scanned in second scanning range, second scanning Amplitude of corresponding second electric signal of optical signal at corresponding first pilot carrier frequency of the first TEE reaches maximum value.

49. headend HEE as claimed in claim 48, which is characterized in that the processing circuit is used for:

When determining that the first TEE completes single pass in second scanning range, through first electrooptical device Obtained the second electric signal of photoelectric conversion is carried out in corresponding first pilot tones of the first TEE to the second scanning optical signal Amplitude maxima at rate；And when determining that the first TEE carries out second of scanning in second scanning range, through described First electrooptical device carries out obtained the second electric signal of photoelectric conversion in the first TEE to the second scanning optical signal Amplitude at corresponding first pilot carrier frequency reaches the maximum value.

50. headend HEE as claimed in claim 48, which is characterized in that the wavelength locking unit further includes wavelength school Quasi- tool and the second electrooptical device,

The processing circuit is also used to: obtaining second electric signal at corresponding first pilot carrier frequency of the first TEE Amplitude reaches the third electric signal and second electric signal when maximum value；According to the third electric signal and described Second electric signal determines wavelength offset information；

The controller is also used to: the optical transmitter, which controlled, by the wavelength offset information is sent to the first TEE, so that First TEE can adjust current wavelength according to the wavelength offset information.

51. the headend HEE as described in claim 49 or 50, which is characterized in that the processing circuit is also used to: obtaining width Second electric signal corresponding described second when degree reaches the maximum value scans the optical power of optical signal；Determine that target connects Receive optical power；Wherein, the intended recipient optical power is greater than receiving sensitivity and transmission link of business datum normal transmission etc. The sum of Power penalty, the minimum transmitting optical power less than the first TEE and maximum uplink loss, the HEE is imitated to receive The difference of optical power detection error；Power adjustment message is determined according to the difference of the optical power and the intended recipient optical power；

The controller is also used to: the optical transmitter, which controlled, by the power adjustment message is sent to the first TEE, so that First TEE adjusts transmitting optical power according to the power adjustment message.

52. the headend HEE as described in claim 46 or 47 or 49 or 50, which is characterized in that light described in the controller Transmitter sends the first pilot parameters, the first sweep parameter to the n TEE respectively and opens by controlling information channel CIC Beginning scan command.

53. headend HEE as claimed in claim 52, which is characterized in that the HEE further includes modulating driver, is used for Amplitude modulation is carried out to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth and generates the CIC.

54. the headend HEE as described in claim 46 or 47 or 49 or 50, which is characterized in that the controller is also used to: It controls the optical transmitter and sends the transmitting optical power of the HEE or the transmitting optical power of the HEE respectively to the n TEE Range；So that the n TEE can be determined certainly based on the transmitting optical power of the HEE or the transmitting optical power range of the HEE The initial transmitting optical power of body.

55. headend HEE as claimed in claim 46, which is characterized in that the wavelength locking unit further includes the first light Power conversion device and processing circuit,

The processing circuit is for determining when the first TEE is scanned in first scanning range, through described the One electrooptical device carries out obtained the first electric signal of photoelectric conversion at the described first TEE pairs to the first scanning optical signal The amplitude at the first pilot carrier frequency answered reaches maximum value.

56. headend HEE as claimed in claim 55, which is characterized in that the processing circuit is used for: determining described the After one TEE completes single pass in first scanning range, through first electrooptical device to first scanning Amplitude of the first electric signal that optical signal progress photoelectric conversion obtains at corresponding first pilot carrier frequency of the first TEE is maximum Value；When determining that the first TEE carries out second of scanning in first scanning range, through first electrooptical device Obtained the first electric signal of photoelectric conversion is carried out in corresponding first pilot tones of the first TEE to the first scanning optical signal Amplitude at rate reaches the maximum value.

57. the headend HEE as described in claim 55 or 56, which is characterized in that the wavelength locking unit further includes wave Long calibration tool and the second electrooptical device,

Second electrooptical device will be for that will carry out photoelectricity by the first scanning optical signal of wavelength calibration tool The 4th electric signal is obtained after conversion；

The processing unit is also used to: obtaining first electric signal at corresponding first pilot carrier frequency of the first TEE Amplitude reaches the 4th electric signal and first electric signal when maximum value；According to the 4th electric signal and described First electric signal determines wavelength offset information；

58. the headend HEE as described in claim 55 or 56, which is characterized in that the processing circuit is also used to: obtaining width First electric signal corresponding described first when degree reaches the maximum value scans the optical power of optical signal；Determine that target connects Receive optical power；Wherein, the intended recipient optical power is greater than receiving sensitivity and transmission link of business datum normal transmission etc. The sum of Power penalty, the minimum transmitting optical power less than the first TEE and maximum uplink loss, the HEE is imitated to receive The difference of optical power detection error；Power adjustment message is determined according to the difference of the optical power and the intended recipient optical power；

The controller is also used to；It controls the optical transmitter and the power adjustment message is sent to the first TEE, so that First TEE adjusts transmitting optical power according to the power adjustment message.

59. headend HEE as claimed in claim 46, which is characterized in that when m is less than n, the controller is also used to: It controls the optical transmitter and sends target wavelength respectively to the n TEE；Wherein, the target wavelength is that each TEE is finally wanted The wavelength being tuned to, the corresponding target wavelength of described each TEE are different；

The wavelength locking unit is used to receive that the n-m TEE that n-m TEE is sent respectively to be respective reports optical signal, It is described that optical signal is reported to correspond to respective first pilot carrier frequency, it is described to report optical signal to be used to indicate the n-m TEE to have Wavelength locking function；

The controller, which is also used to that optical signal is reported to control the optical transmitter according to, sends scanning to the n-m TEE It ceases and desist order.

60. headend HEE as claimed in claim 59, which is characterized in that the wavelength locking unit includes wavelength calibration Tool, the first electrooptical device, the second electrooptical device and processing circuit,

Second electrooptical device by the described of wavelength calibration tool for that will report optical signal to carry out photoelectric conversion First is obtained later reports electric signal；

First electrooptical device is used to that second will to be obtained after reported optical signal progress photoelectric conversion to report electric signal；

The processing circuit is used to report electric signal and described second that electric signal is reported to determine that wavelength offset is believed according to described first Breath；

The controller is also used to: the optical transmitter, which controlled, by the wavelength offset information is sent respectively to corresponding TEE, with The n-m TEE is set to adjust the target wavelength according to the corresponding wavelength offset information.

61. the headend HEE as described in claim 59 or 60, which is characterized in that the wavelength locking unit is also used to: being obtained Take the optical power for reporting optical signal；Determine intended recipient optical power；Wherein, the intended recipient optical power is greater than business number The sum of receiving sensitivity and transmission link equivalent power cost according to normal transmission, be less than in the n-m TEE it is corresponding most The difference of small transmitting optical power and maximum uplink loss, the HEE received optical power detection error；According to the optical power and The difference of the intended recipient optical power determines power adjustment message；

The controller is also used to: being controlled the optical transmitter for the power adjustment message and is sent respectively to the n-m TEE, so that the n-m TEE adjusts transmitting optical power according to corresponding power adjustment message.

62. the headend HEE as described in claim 59 or 60, which is characterized in that first pilot parameters further include One pilot modulated depth, the controller are also used to: being controlled the optical transmitter and are sent second respectively to the n-m TEE and lead Frequency parameter and regular traffic send order；Wherein, second pilot parameters include the second pilot tone depth；Second pilot tone is deep Degree is less than the first pilot modulated depth.

63. the headend HEE as described in claim 46 or 47 or 49 or 50 or 53 or 55 or 56, which is characterized in that described First pilot parameters further include the first pilot modulated depth, and the controller is also used to: controlling the optical transmitter to described One TEE sends the second pilot parameters and regular traffic sends order；Wherein, second pilot parameters include that the second pilot tone is deep Degree；The second pilot tone depth is less than the first pilot modulated depth.

64. the headend HEE as described in claim 46 or 47 or 49 or 50 or 53 or 55 or 56 or 59 or 60, feature exist In the HEE further includes optical receiver, for receiving the transmission request of the transmission of the 2nd TEE in the n TEE；The transmission Request reports information from report information channel RMC for requesting；

The controller is also used to: being controlled the optical transmitter to the 2nd TEE and is sent confirmation message, to indicate described second TEE reports information by the RMC.

65. a kind of tail end equipment TEE characterized by comprising

Optical receiver, for receiving the first pilot parameters, the first sweep parameter of headend HEE transmission；Wherein, the first pilot tone Parameter includes the first pilot carrier frequency；First sweep parameter includes the first scanning stepping and the first scanning range；

Optical transmitter, for when receiving the beginning scan command that the HEE is sent, and the TEE is to lock without wavelength When determining the TEE of function, according to first pilot carrier frequency and first sweep parameter start send first scanning optical signal to The HEE；

Controller is swept for when receiving the stopping scan command that the HEE is sent, controlling the optical transmitter stopping wavelength It retouches, keeps current wavelength constant.

66. the tail end equipment TEE as described in claim 65, which is characterized in that the controller is also used to: being sent in the light While device sends scanning optical signal to the HEE, persistently detect whether that receiving the HEE sends by the optical receiver The second sweep parameter；Wherein, second sweep parameter includes the second scanning stepping and the second scanning range；Described second When sweep parameter and the first sweep parameter difference, institute is controlled according to first pilot carrier frequency and second sweep parameter It states optical transmitter and sends the second scanning optical signal to the HEE.

67. the tail end equipment TEE as described in claim 65, which is characterized in that when the TEE is with wavelength locking function When TEE, the optical receiver is also used to: receiving the target wavelength that the HEE is sent；

The transmission wavelength of the optical transmitter is tuned to the target wavelength for controlling the optical transmitter by the controller；

The controller is also used to: when receiving the beginning scan command that the HEE is sent, according to first pilot carrier frequency Optical signal is reported to HEE transmission by the optical transmitter；Wherein, described to report optical signal to be used to indicate the TEE to be TEE with wavelength locking function；When receiving the stopping scan command that the HEE is sent, controls the optical transmitter and stop Optical signal is reported described in only sending, and keeps current wavelength constant.

68. such as the described in any item tail end equipment TEE of claim 65-67, which is characterized in that the controller is also used to: After receiving the wavelength offset information or power adjustment message that the HEE is sent, according to wavelength offset information adjustment Current wavelength, or adjust according to the power adjustment message transmitting optical power of the optical transmitter.

69. such as the described in any item tail end equipment TEE of claim 65-67, which is characterized in that the optical receiver is also used to: Before receiving the beginning scan command that the HEE is sent, the initial power adjustment information that the HEE is sent is received；

The controller is also used to: the initial transmission light function of the optical transmitter is determined according to the initial power adjustment information Rate.

70. the tail end equipment TEE as described in claim 69, which is characterized in that the initial power adjustment information is the HEE Transmitting optical power, the controller is used for, and determines chain path loss according to the received optical power of the transmitting optical power and the TEE Consumption；Determine the initial transmitting optical power be scanning optical signal not less than the TEE reach the HEE minimum optical power, The value of the sum of the three of the link load and power headroom.

71. the tail end equipment TEE as described in claim 69, which is characterized in that the initial power adjustment information is the HEE Transmitting optical power range, the controller is used for: the TEE determines any hair within the scope of the transmitting optical power of the HEE Sending optical power is the initial transmitting optical power.

72. such as the described in any item tail end equipment TEE of claim 65-67 or 70-71, which is characterized in that the controller is also For: transmission request is sent to the HEE by the optical transmitter；The transmission request is for requesting from report information channel RMC reports information；And after receiving the confirmation message that the HEE is sent, reported by the RMC to HEE transmission Information.

73. such as the described in any item tail end equipment TEE of claim 65-67 or 70-71, which is characterized in that the controller is also For: information is reported to HEE transmission by report information channel RMC.

74. the tail end equipment TEE as described in claim 72, which is characterized in that the TEE further includes modulating driver, is used for Amplitude modulation is carried out to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth and generates the RMC.

75. the tail end equipment TEE as described in claim 73, which is characterized in that the TEE further includes modulating driver, is used for Amplitude modulation is carried out to the intensity of business datum optical signal using the signal of a low frequency, low modulation depth and generates the RMC.

76. such as the described in any item tail end equipment TEE of claim 65-67 or 70-71 or 74-75, which is characterized in that described the One pilot parameters further include the first pilot modulated depth, and the controller is also used to: when receive the HEE transmission second leads After frequency parameter and regular traffic send order, controls the optical transmitter and start to send regular traffic optical signal and according to described the Two pilot parameters persistently generate corresponding pilot signal；Wherein, second pilot parameters include the second pilot modulated depth, described Second pilot modulated depth is less than the first pilot modulated depth.

77. such as the described in any item tail end equipment TEE of claim 65-67 or 70-71 or 74-75, which is characterized in that the control Device processed is also used to carry out parameter configuration to the optical transmitter according to first pilot parameters, first sweep parameter；And When the optical receiver receives the shutdown command that the HEE is sent, stopping Parameter Configuration process is simultaneously clear by configuration before Zero.

78. tail end equipment TEE as recited in claim 68, which is characterized in that the controller is also used to according to described first Pilot parameters, first sweep parameter carry out parameter configuration to the optical transmitter；And when the optical receiver receives institute When stating the shutdown command of HEE transmission, stops Parameter Configuration process and reset configuration before.

79. such as the described in any item tail end equipment TEE of claim 65-67 or 70-71 or 74-75 or 78, which is characterized in that institute Optical receiver is stated to be also used to: during the stopping length scanning, when receiving the aberrant commands that the HEE is sent, The controller, which controls the optical transmitter, to be stopped sending the first scanning optical signal, and is controlled the optical receiver and received institute State the new tuning information and NEW BEGINNING scan command of HEE transmission；The optical transmitter is also used to: according to the new tune Humorous information sends new scanning optical signal to the HEE；The tuning information includes pilot parameters and sweep parameter；The exception Order includes target wavelength, pilot parameters, Power initializations order and starts any one in scan command or any group It closes.

80. tail end equipment TEE as recited in claim 68, which is characterized in that the optical receiver is also used to: in the stopping During length scanning, when receiving the aberrant commands that the HEE is sent, the controller controls the optical transmitter and stops Only send the first scanning optical signal, and control the optical receiver receive new tuning information that the HEE is sent and NEW BEGINNING scan command；The optical transmitter is also used to: according to the new tuning information send new scanning optical signal to The HEE；The tuning information includes pilot parameters and sweep parameter；The aberrant commands include target wavelength, pilot parameters, Any one in Power initializations order and beginning scan command or any combination.