CN105409142A

CN105409142A - Method and apparatus for wavelength initialization and device registration in passive optical network

Info

Publication number: CN105409142A
Application number: CN201480008120.4A
Authority: CN
Inventors: 高波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-06-09
Filing date: 2014-06-09
Publication date: 2016-03-16
Also published as: WO2015188298A1

Abstract

Disclosed are a method and apparatus for wavelength initialization and device registration in a passive optical network. The method comprises: receiving a downlink frame sent by an optical line terminal (OLT) on a downlink wavelength channel, wherein the downlink frame carries a field used for indicating downlink wavelength channel information, and the downlink wavelength channel information comprises a type of the downlink wavelength channel; and determining a target downlink wavelength of an optical network unit (ONU) according to the type of the downlink wavelength channel, wherein a type of a target downlink wavelength channel corresponding to the target downlink wavelength matches a device type of the ONU. By means of the method and apparatus in the embodiments of the present invention, information for indicating a channel type or a device type is carried during information exchange between an optical line terminal and an optical network unit, so that a passive optical network system to which a channel or device belongs can be identified in a case in which multiple passive optical network systems coexist, and thus wavelength initialization and device registration can be accurately performed and interference with other devices can be avoided.

Description

Method and apparatus for wavelength initialization and device registration in passive optical network

EPON medium wavelength initializes the method and apparatus with facility registration

Technical field

The present invention relates to the initialization of the EPON medium wavelength in optical communication field, more particularly to optical communication field and the method and apparatus of facility registration.Background technology

With developing rapidly for optical communication technique, EPON（Passive Optical Network, referred to as " PON ") application of the system in optical communication technique be more and more wider.PON system can include：Optical line terminal positioned at central office（Optical Line Terminal, referred to as " OLT ") include the Optical Distribution Network of Passive Optical Components（Optical Distribution Network, referred to as " ODN ") and positioned at the optical network unit of user terminal（Optical Network Unit, referred to as " ONU ")/ONT Optical Network Terminal（Optical Network Terminal, referred to as ' Ν Τ "), wherein it is possible to refer to ONU and/or ONT with ONU.

PON systems can include time division multiplexing（Time Division Multiplexing, referred to as

" TDM ") PON, gigabit passive optical network（Gigabit Passive Optical Network, referred to as

" EPON "), time-division wavelength-division multiplex（Time wavelength division multiplexing, referred to as " TWDM ") PON, point-to-point（Point to Point, referred to as " PtP ") wavelength-division multiplex（Wavelength Division Multiplexing, referred to as " WDM ") PON etc..At present, International Telecommunication Union's telecommunication standards group (ITU Telecommunication Standardization Sector, referred to as " ITU-T ", wherein, International Telecommunication Union are referred to as " ITU ") international standard G.989.X propose and a kind of be referred to as next-generation passive optical network system（Next Generation-PON2, referred to as " NG-PON2 "), the NG-PON2 systems include TWDM-PON systems and PtP WDM-PON systems, wherein, the TWDM-PON systems and the PtP WDM-PON systems can be simultaneously based on optical splitters（Optical Splitter, referred to as " OS ") ODN on coexist.But in the NG-PON2 systems, initialized without existing wavelength and the method for facility registration can be used.

Therefore, wavelength initialization and the facility registration under many passive optical network Coexistence Situations are realized, is current urgent problem to be solved. The content of the invention

In view of this, the embodiments of the invention provide a kind of initialization of EPON medium wavelength and the method and apparatus of facility registration, wavelength initialization and facility registration can be carried out in the case of condition of multi-system coexistence.

First aspect includes there is provided a kind of method that EPON medium wavelength is initialized, this method：Optical network unit ONU receives the downlink frame that optical line terminal OLT is sent, and the downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the type of the wavelength channel；The ONU is according to the type of the wavelength channel, the target downlink wavelength channel of the ONU is determined from least one downstream wavelength passage, wherein, each wavelength channel with a downstream wavelength passage --- corresponding, the type of wavelength channel corresponding with the target downlink wavelength matches with the device type of the ONU.

With reference in a first aspect, in the first possible implementation of first aspect, the downlink frame is particularly for the downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message for indicating the downstream wavelength channel information.

With reference to the first possible implementation of first aspect, in second of possible implementation of first aspect, EPON operational control body PON OC Body fields or EPON the mark PON id fields that the downlink physical synchronization blocks include are used to indicate the downstream wavelength channel information.

With reference to the first or second of possible implementation of first aspect, first aspect, in the third possible implementation of first aspect, the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；Wherein, the ONU determines the target downlink wavelength channel of the ONU according to the type of the wavelength channel from least one downstream wavelength passage, including：The ONU is according to the type of the wavelength channel and the type of the downlink business that can be transmitted, the target downlink wavelength is determined from least one downstream wavelength passage, wherein, the type and the device type of the ONU of wavelength channel corresponding with the target downlink wavelength channel match, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU downlink business supported.

Second aspect includes there is provided a kind of method that EPON medium wavelength is initialized, this method：Optical network unit ONU receives the downlink frame of optical line terminal OLT response, and the downlink frame carries the field of the upstream wavelength channel information for indicating current wavelength passage, and the upstream wavelength channel information includes the type of the wavelength channel；The ONU is according to the type of the wavelength channel, the target upstream wavelength passage of the ONU is determined from least one upstream wavelength passage, wherein, each wavelength channel with a upstream wavelength passage --- corresponding, the type of wavelength channel corresponding with the target upstream wavelength passage matches with the device type of the ONU. With reference to second aspect, in the first possible implementation of second aspect, this method also includes：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；The uplink frame for responding the registration request is sent to the OLT, the uplink frame is used for the field for carrying the device type for indicating the ONU；Wherein, this sends uplink frame for responding the registration request to the OLT, including：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；When it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the uplink frame is sent to the OLT.

With reference to the first possible implementation of second aspect, in second of possible implementation of second aspect, the registration request that the reception OLT is sent, including：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the first possible implementation of second aspect, in the third possible implementation of second aspect, the registration request that the reception OLT is sent, including：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to second aspect or second aspect the first to the possible implementation of any of the third possible implementation, in the 4th kind of possible implementation of second aspect, what the uplink frame was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to second aspect or second aspect the first to any of the 4th kind of possible implementation possible implementation, in the 5th kind of possible implementation of second aspect, the upstream wavelength channel information also includes the type for the uplink service that the wavelength channel can be transmitted；Wherein, the ONU determines the target upstream wavelength passage of the ONU according to the type of the wavelength channel from least one upstream wavelength passage, including：The ONU is according to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength passage is determined from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match, and the type of uplink service that can transmit of the target upstream wavelength passage and the type matching of the ONU uplink services supported.

With reference to second aspect the first to any of the 5th kind of possible implementation possible reality Existing mode, in the 6th kind of possible implementation of second aspect, before the optical network unit ONU receives the downlink frame that optical line terminal OLT is sent, this method also includes：Wavelength channel switching command or wavelength regulation order that the OLT is sent according to the uplink frame are received, to indicate that the ONU carries out upstream wavelength calibration.

The third aspect includes there is provided a kind of method of facility registration in EPON, this method：Registration response is sent to optical line terminal OLT, the registration is responded for asking the OLT allocation identifications, and registration response carries the field for the device type for being used to indicate optical network unit ONU；Receive the OLT according to the registration in response to determining that the device identification of the ONU sent when the device type of the ONU is with allowing the device type for registering equipment to match；Enter the transmission of row information according to the device identification.

With reference to the third aspect, in the first possible implementation of the third aspect, this method also includes：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；Wherein, this sends registration response to optical line terminal OLT, including：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；When it is determined that the device type of the ONU allows the device type for registering equipment to match with this, registration response is sent to the OLT.

With reference to the first possible implementation of the third aspect, in second of possible implementation of the third aspect, the registration request that the reception OLT is sent, including：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the first possible implementation of the third aspect, in the third possible implementation of the third aspect, the registration request that the reception OLT is sent, including：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to the third aspect or the third aspect the first to the possible implementation of any of the third possible implementation, in the 4th kind of possible implementation of the third aspect, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to the third aspect or the third aspect the first to any of the 4th kind of possible implementation possible implementation, should in the reception in the 5th kind of possible implementation of the third aspect OLT according to the registration in response to determining that after the device identification of the ONU sent when the device type of the ONU is with allowing the device type for registering equipment to match, this method also includes：Confirmation is sent to the OLT, the confirmation is used to indicate that the ONU receives the device identification.

With reference to the third aspect or the third aspect the first to any of the 5th kind of possible implementation possible implementation, in the 6th kind of possible implementation of the third aspect, this method also includes：Receive the OLT according to the registration in response to determining that the wavelength channel switching command that the sends when device type of the ONU allows the device type for registering equipment to mismatch with this, to indicate that the ONU is re-registered.

Fourth aspect includes there is provided a kind of method that EPON medium wavelength is initialized, this method：Determine wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passage of optical line terminal OLT, and the upstream wavelength channel information includes the type of upstream wavelength passage；The wavelength channel information is sent to optical network unit ONU.

With reference to fourth aspect, in the first possible implementation of fourth aspect, when the wavelength channel information includes the downstream wavelength channel information, this sends the wavelength channel information to optical network unit ONU, including：Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

With reference to the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect, the EPON operational control body PON OC Body fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields 7 that the downlink physical synchronization blocks include carry the downstream wavelength channel information.

With reference to the first or second of possible implementation of fourth aspect or fourth aspect, in the third possible implementation of fourth aspect, this method also includes：The registration response that the ONU is sent on the upstream wavelength passage is received, the registration is responded for asking upstream wavelength to be calibrated, and registration response carries the field for the device type for being used to indicate the ONU；Wherein, this sends the wavelength channel information to optical network unit ONU, including：Responded according to the registration to the ONU and send the upstream wavelength channel information.

With reference to the third possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect, this method also includes：Registration request is sent to the ONU, the registration request carries the field for indicating the device type for allowing to register equipment；Wherein, the reception ONU is responded on the upstream wavelength passage to the OLT registrations sent, including：The ONU is received it is determined that the ONU's sets When standby type allows the device type for registering equipment to match with this, the registration sent on the upstream wavelength passage is responded.

With reference to the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect, this sends registration request to the ONU, including：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the 4th kind of possible implementation of fourth aspect, in the 6th kind of possible implementation of fourth aspect, this sends registration request to the ONU, including：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to fourth aspect the third to any of the 6th kind of possible implementation possible implementation, in the 7th kind of possible implementation of fourth aspect, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to fourth aspect the third to any of the 7th kind of possible implementation possible implementation, in the 8th kind of possible implementation of fourth aspect, before this responds according to the registration and the upstream wavelength channel information is sent to the ONU, this method also includes：4 blunt responded according to the registration to the ONU send wavelength channel switching command or wavelength regulation order, to indicate that the ONU carries out upstream wavelength calibration.

With reference to fourth aspect or fourth aspect the first to any of the 8th kind of possible implementation possible implementation, in the 9th kind of possible implementation of fourth aspect, the downstream wavelength channel information also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information also includes the type for the uplink service that the upstream wavelength passage can be transmitted.

5th aspect is there is provided a kind of method of facility registration in EPON, and this method includes：The registration response that optical network unit ONU is sent is received, the registration is responded for asking optical line terminal OLT allocation identification, and registration response carries the field for the device type for being used to indicate the ONU；According to the registration in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；When it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the device identification of the ONU is sent to the ONU. With reference to the 5th aspect, in the first possible implementation of the 5th aspect, this method also includes：Registration request is sent to the ONU, the registration request is carried for indicating the shown field for allowing to register the device type of equipment；Wherein, the registration response that the reception optical network unit ONU is sent, including：The ONU is received it is determined that the registration that the device type of the ONU is sent when allowing the device type for registering equipment to match with this is responded.

With reference to the first possible implementation of the 5th aspect, in second of possible implementation of the 5th aspect, this sends registration request to the ONU, including：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the first possible implementation of the 5th aspect, in the third possible implementation of the 5th aspect, this sends registration request to the ONU, including：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to the 5th aspect or the 5th aspect the first to the possible implementation of any of the third possible implementation, in the 4th kind of possible implementation of the 5th aspect, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to the 5th aspect or the 5th aspect the first to any of the 4th kind of possible implementation possible implementation, in the 5th kind of possible implementation of the 5th aspect, after this sends the device identification of the ONU to the ONU, this method also includes：The confirmation of ONU transmissions is received, the confirmation is used to indicate that the ONU receives the device identification.

With reference to the 5th aspect or the 5th aspect the first to any of the 5th kind of possible implementation possible implementation, in the 6th kind of possible implementation of the 5th aspect, this method also includes：When it is determined that the device type of the ONU allows the device type for registering equipment to mismatch with this, wavelength channel switching command is sent to the ONU, to indicate that the ONU is re-registered.

6th aspect is there is provided a kind of optical network unit ONU, and the ONU includes：Receiving module, the downlink frame for receiving optical line terminal OLT transmission, downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the class of the wavelength channel Type；Determining module, for the type according to the wavelength channel, determines the target downlink wavelength channel of the ONU from least one downstream wavelength passage, wherein, the type of the target downlink wavelength channel matches with the device type of the ONU.

With reference to the 6th aspect, in the first possible implementation of the 6th aspect, the downlink frame that the receiving module is received is particularly for the downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message for indicating the downstream wavelength channel information.

With reference to the first possible implementation of the 6th aspect, in second of possible implementation of the 6th aspect, EPON operational control body PON OC Body fields or EPON the mark PON id fields that the downlink physical synchronization blocks include are used to indicate the downstream wavelength channel information.

With reference to the 6th aspect, the first or second of possible implementation of the 6th aspect, in the third possible implementation of the 6th aspect, the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；Wherein, the determining module specifically for：According to the type of the wavelength channel and the type of the downlink business that can be transmitted, the target downlink wavelength channel is determined from least one downstream wavelength passage, wherein, the type of the target downlink wavelength channel matches with the device type of the ONU, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU downlink business supported.

7th aspect is there is provided a kind of optical network unit ONU, and the ONU includes：Receiving module, the downlink frame for receiving optical line terminal OLT response, downlink frame carries the field of the upstream wavelength channel information for indicating current wavelength passage, and the upstream wavelength channel information includes the type of the wavelength channel；Determining module, for the type according to the wavelength channel, determines the target upstream wavelength passage of the ONU from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match.

With reference to the 7th aspect, in the first possible implementation of the 7th aspect, the receiving module is additionally operable to：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；The ONU also includes sending module, and for sending uplink frame to optical line terminal OLT, the uplink frame carries the field of the device type for indicating the ONU；Wherein, the determining module is additionally operable to：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；The sending module specifically for：When the determining module determines that the device type of the ONU allows the device type for registering equipment to match with this, the uplink frame is sent to the OLT.

With reference to the 7th aspect the first possible implementation, the 7th aspect second of possible implementation in, the receiving module specifically for：Receive OLT transmissions includes distribution structure Allocation The value of allocation unit mark Alloc-ID fields in the registration request of structure fields, the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the 7th aspect the first possible implementation, the 7th aspect the third possible implementation in, the receiving module specifically for：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to the 7th aspect or the 7th aspect the first to the possible implementation of any of the third possible implementation, in the 4th kind of possible implementation of the 7th aspect, what the uplink frame that the sending module is sent was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to the 7th aspect or the 7th aspect the first to any of the 4th kind of possible implementation possible implementation, in the 5th kind of possible implementation of the 7th aspect, the upstream wavelength channel information that the receiving module is received also includes the type for the uplink service that the wavelength channel can be transmitted；Wherein, the determining module specifically for：According to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength passage is determined from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match, and the type of uplink service that can transmit of the target upstream wavelength passage and the type matching of the ONU uplink services supported.

With reference to the 7th aspect or the 7th aspect the first to any of the 5th kind of possible implementation possible implementation, in the 6th kind of possible implementation of the 7th aspect, the receiving module is additionally operable to：Before the downlink frame that the OLT is sent is received, wavelength channel switching command or wavelength regulation order that the OLT is sent according to the uplink frame are received, to indicate that the ONU carries out upstream wavelength calibration.

Eighth aspect includes there is provided a kind of optical network unit ONU, the ONU：Sending module, for sending registration response to optical line terminal OLT, the registration is responded for asking the OLT allocation identifications, and registration response carries the field for the device type for being used to indicate the ONU；Receiving module, the device identification for receiving the ONU that the OLT is sent when the registration sent according to the sending module responds, determines the device type of the ONU with allowing the device type for registering equipment to match；The transmission of row information is entered in processing module, device identification for being received according to the receiving module. With reference to eighth aspect, in the first possible implementation of eighth aspect, the receiving module is additionally operable to：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；Wherein, the optical network unit also includes determining module, for determining whether the device type of the ONU matches with the device type for allowing to register equipment；The sending module specifically for：When the determining module determines that the device type of the ONU allows the device type for registering equipment to match with this, registration response is sent to the OLT.

With reference to the first possible implementation of eighth aspect, in second of possible implementation of eighth aspect, the receiving module specifically for：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the first possible implementation of eighth aspect, in the third possible implementation of eighth aspect, the receiving module specifically for：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to eighth aspect or eighth aspect the first to the possible implementation of any of the third possible implementation, in the 4th kind of possible implementation of eighth aspect, what the registration response that the sending module is sent was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to eighth aspect or eighth aspect the first to any of the 4th kind of possible implementation possible implementation, in the 5th kind of possible implementation of eighth aspect, the sending module is additionally operable to：After the receiving module receives the device identification of the ONU, confirmation is sent to the OLT, the confirmation is used to indicate that the ONU receives the device identification.

With reference to eighth aspect or eighth aspect the first to any of the 5th kind of possible implementation possible implementation, in the 6th kind of possible implementation of eighth aspect, the receiving module is additionally operable to：Receive the OLT according to the registration in response to determining that the wavelength channel switching command that the sends when device type of the ONU allows the device type for registering equipment to mismatch with this, to indicate that the ONU is re-registered.

9th aspect is there is provided a kind of optical line terminal OLT, and the OLT includes：Determining module, is used In it is determined that wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passages of the OLT, and the upstream wavelength channel information includes the type of upstream wavelength passage；Sending module, the wavelength channel information for sending determining module determination to optical network unit ONU.

With reference to the 9th aspect, the 9th aspect the first possible implementation in, the determining module determine the wavelength channel information include the downstream wavelength channel information when, the sending module specifically for：Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

With reference to the first possible implementation of the 9th aspect, in second of possible implementation of the 9th aspect, the EPON operational control body PON OC Body fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields 7 that the downlink physical synchronization blocks include carry the downstream wavelength channel information.

With reference to the first or second of possible implementation of the 9th aspect or the 9th aspect, in the third possible implementation of the 9th aspect, the optical line terminal also includes receiving module, for receiving the registration response that the ONU is sent on the upstream wavelength passage, the registration is responded for asking upstream wavelength to be calibrated, and registration response carries the field for the device type for being used to indicate the ONU；Wherein, the sending module specifically for：Responded according to the registration to the ONU and send the upstream wavelength channel information.

With reference to the third possible implementation of the 9th aspect, in the 4th kind of possible implementation of the 9th aspect, the sending module is additionally operable to：Registration request is sent to the ONU, the registration request carries the field for indicating the device type for allowing to register equipment；Wherein, the receiving module specifically for：The ONU is received when it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the registration response sent on the upstream wavelength passage.

With reference to the 9th aspect the 4th kind of possible implementation, the 9th aspect the 5th kind of possible implementation in, the sending module specifically for：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the 9th aspect the 4th kind of possible implementation, the 9th aspect the 6th kind of possible implementation in, the sending module specifically for：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes being used to indicate that this allows to register setting for equipment The field of standby type.

With reference to the 9th aspect the third to any of the 6th kind of possible implementation possible implementation, in the 7th kind of possible implementation of the 9th aspect, what the registration response that the receiving module is received was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to the 9th aspect the third to any of the 7th kind of possible implementation possible implementation, in the 8th kind of possible implementation of the 9th aspect, the sending module is additionally operable to：Before being responded according to the registration upstream wavelength channel information is sent to the ONU, 4 blunt responded according to the registration to the ONU send wavelength channel switching command or wavelength regulation order, to indicate that the ONU carries out upstream wavelength calibration.

With reference to the 9th aspect or the 9th aspect the first to any of the 8th kind of possible implementation possible implementation, in the 9th kind of possible implementation of the 9th aspect, the downstream wavelength channel information that the determining module is determined also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information that the determining module is determined also includes the type for the uplink service that the upstream wavelength passage can be transmitted.

Tenth aspect is there is provided a kind of optical line terminal OLT, and the OLT includes：Receiving module, the registration response for receiving optical network unit ONU transmission, the registration is responded for asking the OLT allocation identifications, and registration response carries the field for the device type for being used to indicate the ONU；Determining module, for the registration that is received according to the receiving module in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；Sending module, during for determining that the device type of the ONU and this allow the device type for registering equipment to match in the determining module, the device identification of the ONU is sent to the ONU.

With reference to the tenth aspect, in the first possible implementation of the tenth aspect, the sending module is additionally operable to：Registration request is sent to the ONU, the registration request is carried for indicating the shown field for allowing to register the device type of equipment；Wherein, the receiving module specifically for：The ONU is received it is determined that the registration that the device type of the ONU is sent when allowing the device type for registering equipment to match with this is responded.

With reference to the tenth aspect the first possible implementation, the tenth aspect second of possible implementation in, the sending module specifically for：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, the allocation unit mark Alloc-ID words in the distribution structure field The value of section indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

With reference to the tenth aspect the first possible implementation, the tenth aspect the third possible implementation in, the sending module specifically for：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

With reference to the tenth aspect or the tenth aspect the first to the possible implementation of any of the third possible implementation, in the 4th kind of possible implementation of the tenth aspect, what the registration response that the receiving module is received was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

With reference to the tenth aspect or the tenth aspect the first to any of the 4th kind of possible implementation possible implementation, in the 5th kind of possible implementation of the tenth aspect, the receiving module is additionally operable to：After the sending module sends the device identification of the ONU to the ONU, the confirmation of ONU transmissions is received, the confirmation is used to indicate that the ONU receives the device identification.

With reference to the tenth aspect or the tenth aspect the first to any of the 5th kind of possible implementation possible implementation, in the 6th kind of possible implementation of the tenth aspect, the sending module is additionally operable to：When the determining module determines that the device type of the ONU allows the device type for registering equipment to mismatch with this, wavelength channel switching command is sent to the ONU, to indicate that the ONU is re-registered.

Based on above-mentioned technical proposal, the method and apparatus of the initialization of EPON medium wavelength and facility registration of the embodiment of the present invention, by in the information exchange between optical line terminal and optical network unit, carry the information for indicating channel type or device type, so as to the identification passage under multiple passive optical network Coexistence Situations or the passive optical network belonging to equipment, thus, it is possible to correctly carry out wavelength initialization and facility registration, and the interference to miscellaneous equipment can be avoided.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in the embodiment of the present invention will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings. Fig. 1 is a kind of schematic diagram of application scenarios of the embodiment of the present invention；

Fig. 2 is the indicative flowchart of the method for wavelength initialization provided in an embodiment of the present invention；Fig. 3 is the frame structure schematic diagram of downlink frame provided in an embodiment of the present invention；

Fig. 4 a are another schematic diagrames of the frame structure of downlink frame provided in an embodiment of the present invention；

Fig. 4 b are another schematic diagrames of the frame structure of downlink frame provided in an embodiment of the present invention；Fig. 5 is the indicative flowchart of the method for the wavelength initialization that another embodiment of the present invention is provided；Fig. 6 is another indicative flowchart of the method for the wavelength initialization that another embodiment of the present invention is provided；

Fig. 7 is the schematic diagram of distribution structure field provided in an embodiment of the present invention；

Fig. 8 is another indicative flowchart of the method for the wavelength initialization that another embodiment of the present invention is provided；

Fig. 9 is the indicative flowchart of the method for facility registration provided in an embodiment of the present invention；

Figure 10 is another indicative flowchart of the method for facility registration provided in an embodiment of the present invention；Figure 11 is another indicative flowchart of the method for facility registration provided in an embodiment of the present invention；Figure 12 is another indicative flowchart of the method for facility registration provided in an embodiment of the present invention；Figure 13 is the indicative flowchart of the method for the wavelength initialization that yet another embodiment of the invention is provided；Figure 14 is another indicative flowchart of the method for the wavelength initialization that yet another embodiment of the invention is provided；

Figure 15 is another indicative flowchart of the method for the wavelength initialization that yet another embodiment of the invention is provided；

Figure 16 is another indicative flowchart of the method for the wavelength initialization that yet another embodiment of the invention is provided；

Figure 17 is the indicative flowchart of the method for the facility registration that another embodiment of the present invention is provided；Figure 18 is another indicative flowchart of the method for the facility registration that another embodiment of the present invention is provided；Figure 19 is another indicative flowchart of the method for the facility registration that another embodiment of the present invention is provided；Figure 20 is another indicative flowchart of the method for the facility registration that another embodiment of the present invention is provided；Figure 21 is a kind of interaction schematic diagram of wavelength initial method provided in an embodiment of the present invention；Figure 22 is the schematic block diagram of optical network unit provided in an embodiment of the present invention；

Figure 23 is another schematic block diagram of optical network unit provided in an embodiment of the present invention；

Figure 24 is another schematic block diagram of optical network unit provided in an embodiment of the present invention； Figure 25 is another schematic block diagram of optical network unit provided in an embodiment of the present invention；Figure 26 is the schematic block diagram of optical line terminal provided in an embodiment of the present invention；

Figure 27 is another schematic block diagram of optical line terminal provided in an embodiment of the present invention；

Figure 28 is another schematic block diagram of optical line terminal provided in an embodiment of the present invention；

Figure 29 is the schematic block diagram for the optical network unit that another embodiment of the present invention is provided；

Figure 30 is another schematic block diagram for the optical network unit that another embodiment of the present invention is provided；Figure 31 is the another schematic block diagram for the optical network unit that another embodiment of the present invention is provided；Figure 32 is the schematic block diagram for the optical line terminal that another embodiment of the present invention is provided；

Figure 33 is another schematic block diagram for the optical line terminal that another embodiment of the present invention is provided.Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made should all belong to the scope of protection of the invention.

Fig. 1 shows a kind of schematic diagram of application scenarios according to embodiments of the present invention.As shown in figure 1, the NG-PON2 systems can include one or more NG-PON2 OLT, such as m NG-PON2 OLT, and one or more NG-PON2 ONU, such as n NG-PON2 ONU, wherein m, n are natural number.One or more NG-PON2 OLT pass through wavelength multiplexer（Wavelength Mux, referred to as " WM ")/wavelength demultiplexer and optical splitter（Optical Splitter, referred to as " OS ") be connected with one or more NG-P0N2 0NU optical fiber.The NG-P0N2 systems are the system of TWDM-P0N systems and PtP WDM-PON coexistence of systems, thus, the NG-P0N2 0LT can be TWDM-PON 0LT or PtP WDM-PON OLT;Similarly, the NG-P0N2 ONU can be TWDM-PON ONU or PtP WDM-PON ONU.

Under the network architecture of the NG-PON2, each PtP WDM-PON ONU monopolize a wavelength channel, it is possible to support continuously to receive and send optical signal；Each PtP WDM-PON OLT can have one or more transceivers, it is possible to while supporting multiple different wavelength channels, client data is mapped in specific wavelength channel, and multiple wavelength channels can share an optical fiber.Wherein, each between PtP WDM-PON OLT and PtP WDM-PON ONU by a wavelength to communicating, i.e., the PtP WDM-PON ONU in specified upstream wavelength channel or downstream wavelength passage can be communicated with the PtP WDM-PON OLT in identical wavelength channel. It should be understood that in embodiments of the present invention, the optical signal of data or carrying data is transferred to ONT/ONU transmission direction referred to as down direction from OLT, correspondingly, and OLT is also referred to as downstream wavelength passage to the ONT/ONU passages for sending optical signal；Correspondingly, it is referred to as downlink frame for carrying OLT to the carrier of the ONT/ONU information sent or data；Similarly, the optical signal of data or carrying data is transferred to OLT transmission direction referred to as up direction from ONT/ONU；Correspondingly, ONT/ONU is also referred to as upstream wavelength passage to the OLT passages for sending optical signal；Correspondingly, it is referred to as uplink frame to the carrier of the OLT information sent or data for 7 load ONT/ONU.

It will also be understood that, the embodiment of the present invention is only illustrated by taking NG-PON2 systems as an example, illustrated in case of TWDM-PON systems and PtP WDM-PON coexistence of systems, but the present invention is not limited thereto, wavelength initialization according to embodiments of the present invention and the method and its device of facility registration can also be applied to the situation that other multiple passive optical networks coexist.In addition, for convenience, Fig. 2 shows the indicative flowchart of the method 100 of wavelength initialization according to embodiments of the present invention, and this method 100 can be performed by ONT and/or ONU, for example, this method 100 is performed by PtP WDM-PON ONU.As shown in Fig. 2 this method 100 includes：

S110, receives the downlink frame that optical line terminal OLT is sent, and the downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the type of the wavelength channel；

S120, according to the type of the wavelength channel, ONU target downlink wavelength channel is determined from least one downstream wavelength passage, wherein, each wavelength channel with a downstream wavelength passage --- corresponding, the type of wavelength channel corresponding with the target downlink wavelength channel matches with the device type of the ONU.

Wherein, according to the type of the wavelength channel, ONU target downlink wavelength channel is determined from least one downstream wavelength passage, is specifically included：

The blunt types according to the wavelength channel of ONU 4, determine at least one wavelength channel, and the type of at least one wavelength channel matches with the device type of the ONU；

The ONU determines the target downlink wavelength channel of the ONU from least one downstream wavelength passage corresponding with least one wavelength channel.

I.e. in embodiments of the present invention, optical network unit ONU on downstream wavelength passage by receiving the downlink frame that optical line terminal OLT is sent, the type of the downstream wavelength passage indicated by the field carried in the downlink frame is can determine, so that the ONU can be according to the type of the downstream wavelength passage with being somebody's turn to do ONU itself device type, in it can receive one or more downstream wavelength passages of downlink frame of OLT transmissions, it is determined that with target downlink wavelength channel and its corresponding target downlink wavelength that the device type of the ONU matches, so as to realize the initialization of ONU downstream wavelength.Unit is received in the downlink frame transmitted by optical line terminal, carry the type information of downstream wavelength passage, so as to recognize the type of downstream wavelength passage under multiple passive optical network Coexistence Situations, target downlink wavelength thus, it is possible to which the wavelength of the downstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

Specifically, in S110, ONU can determine initial downstream wavelength passage first, for example, ONU can be possible to receive the downstream wavelength passage of optical signal as initial downstream wavelength passage, to further determine that the one or more downstream wavelength passages for the downlink frame that can receive OLT transmissions.

For example, after PtPWDM-PON ONU power-up initializings, service channel can be closed, and only open Added Management and control passage (Auxiliary Management and Control Channel, referred to as " AMCC " ONU can be by adjusting the downstream wavelength for receiving, downstream wavelength passage is scanned, optical signal can be received according to some downstream wavelength, then passage corresponding with the downstream wavelength may be a downstream wavelength passage, ONU can carry out down-going synchronous to the downstream wavelength passage, receive the downlink frame that OLT is for example sent by AMCC passages.

In another example, if the transmitting-receiving wavelength of PtP WDM-PON ONU pre-set acquiescences, or pre-set the transmitting-receiving wavelength pair that can be supported, then the ONU can be in power-up initializing, according to the transmitting-receiving wavelength of the acquiescence or the transmitting-receiving wavelength pair that can be supported, determine that ONU is used for the initial transmitting-receiving wavelength for receiving or sending.

It should be understood that, in embodiments of the present invention, OLT can issue the downlink frame for carrying the field for indicating downlink wavelength channel information by AMCC passages, for example, OLT broadcasts the downstream wavelength channel information by AMCC channel periods, the OLT to ONU can also send the downlink frame by downlink traffic channel, but the embodiment of the present invention is not limited this.

In embodiments of the present invention, ONU by receive OLT transmission include the downlink frame of the field, the downstream wavelength channel information can be determined, thus, it is possible to help ONU to recognize the type, purposes, the type for the downlink business that can be transmitted etc. of the downstream wavelength passage, consequently facilitating ONU correctly carries out the initialization of downstream wavelength.

In embodiments of the present invention, the downlink frame that ONU receptions OLT is sent carries the field for indicating downlink wavelength channel information, and the downstream wavelength channel information includes the type of the downstream wavelength passage.It is optional Ground, the downlink frame is particularly for the downlink physical synchronization blocks for indicating the downstream wavelength channel information

(Physical Synchronization Block appropriate for downstream, referred to as " PSBd ") or template (Profile) physical layer operation and maintenance（Physical Layer Operation and Maintenance, referred to as " PLOAM ") message.That is it can be PSBd fields that OLT, which is sent to a part of of ONU downlink frame, or any one field in Profile PLOAM message, the PSBd fields and the Profile PLOAM message can serve to indicate that downstream wavelength channel information.

For example, as shown in figure 3, the length of PSBd fields is 24 bytes, the PSBd fields can include the Physical Synchronization sequence that three length are all 8 bytes（Physical Synchronization sequence, referred to as " PSync ") field, super-frame number device structure（Super Frame Counter structure, referred to as " SFC structure ") field and operational control structure（Operational Control structure, referred to as " OC structure ") field；Wherein, the SFC structure fields include the super-frame number device of 51 bits（Superframe counter) field and 13 bits mixing error correcting（Hybrid Error Correction, referred to as " HEC ") field；The OC structure fields include the EPON operational control body of 51 bits（PON Operational Control Body, referred to as " PON OC Body ") the HEC fields of field and 13 bits.

Wherein, PSync fields, SFC structure fields or OC structure fields in the PSBd fields can include the field for indicating downlink wavelength channel information according to embodiments of the present invention, for example, as shown in Figure 4 b, length for the WLCH the type fields for the type for indicating the downstream wavelength passage can be at least 1 bit, the value of the WLCH the type fields can be for example " 1 " and " 0 ", wherein, value " 1 " for example indicates that the downstream wavelength passage is TWDM-PON or point-to-multipoint（Point to Multiple Point, referred to as " PtMP ") the downstream wavelength passage in system；Value " 0 " for example indicates that the downstream wavelength passage is PtP WDM-PON or point-to-point（Point to Point, referred to as " PtP ") the downstream wavelength passage in system, but the present invention is not limited thereto.

It should be understood that in embodiments of the present invention, can be by increasing the length of PSBd fields so that the PSBd fields carry the field for indicating the downstream wavelength channel information；The length of existing PSBd fields can not also be changed, and using the reserved place in the PSBd fields come indicating downlink wavelength channel information, or some subfields or the value of some bits in change PSBd fields carry out indicating downlink wavelength channel information, the embodiment of the present invention is not limited this.

Further, the Superframe counter fields or HEC fields that the SFC structure fields include can be used for indicating downlink wavelength channel information；Similarly, the PON OC Body fields that the OC structure fields include can be used for indicating downlink wavelength channel information. Specifically, in embodiments of the present invention, as shown in Fig. 3 to Fig. 4 c, the EPON operational control body that downlink physical synchronization blocks PSBd includes（Operational Control Body) PON OC Body fields or EPON mark PON id fields be used to indicate the downstream wavelength channel information.

As shown in Figs. 4a and 4b, the PON OC Body fields can include：The EPON identity type of 8 bits（PON-ID type, referred to as " PIT ") field, the TOL fields for being used to indicate OLT luminous power of the PON-ID fields of 32 bits and 11 bits；Wherein, the PIT fields can include 1 bit be used for indicate in the TOL fields whether RE fields, the Optical Distribution Network grade of power budget grade for indicating ODN of the transmit power comprising OLT（ODN Class) field and 4 bits reserved field；The PON OC Body fields can include the CHIX fields for being used to indicate wavelength channel index of 4 bits.In embodiments of the present invention, the field for indicating downlink wavelength channel information can be included in the arbitrary fields of PON OC Body fields, for example, the reserved field in PIT fields can serve to indicate that downstream wavelength channel information；In another example, TOL fields can be used for indicating downlink wavelength channel information；For another example PON-ID fields can be used for indicating downlink wavelength channel information.

Specifically, for example, as illustrated in fig. 4 c, PON-ID fields include being used to indicate the WLCHtype fields of the type of the downstream wavelength passage, the length of the WLCHtype fields can be at least 1 bit, the value of the WLCHtype fields can be for example " 0 " and " 1 ", wherein, value " 0 " for example indicates that the downstream wavelength passage is TWDM-PON or point-to-multipoint（Point to Multiple Point, referred to as " PtMP ") the downstream wavelength passage in system；Value " Γ for example indicates that the downstream wavelength passage is PtP WDM-PON or point-to-point（Point to Point, referred to as " PtP ") the downstream wavelength passage in system, but the present invention is not limited thereto.

In embodiments of the present invention, field for indicating downlink wavelength channel information can also be carried in the Profile PLOAM message, existing field or content in the Profile PLOAM message can be utilized, or using the field or content newly increased in the Profile PLOAM message, carry out indicating downlink wavelength channel information.For example, Profile PLOAM message according to embodiments of the present invention can have content and form as shown in table 1.

Table 1

Eight hytes

Content is described

Sequence number

1-2 0x03FF represent to be broadcast to ONU all in current downlink wavelength channel

3 TBD represent that type of message is identified, and are broadcast to all ONU's for identifying Downstream wavelength passage template

4 SeqNo represent the sequence number of broadcast message

Wherein, VVVV represents the version number of template；PPP represents wavelength pair

5 WW OPPP

Mark

Wherein, DDD represents the mark of current downlink wavelength；F represents FEC

6 ODDD 000F

The selection of pattern

Wherein, RRRR represents downstream line rate；LLLL represents descending

7 RRRR LLLL

Line coding

Wherein, T represents the type of downstream wavelength passage to 8 0000 000T

9-40 Padding represent filling

41-48 MIC represent that message integrity check is as shown in table 1, for example, in the Profile PLOAM message, the type of downstream wavelength passage can be represented with the content " 0000000T " in the 8th eight hytes, wherein, when T values are " 0 ", it is the downstream wavelength passage in TWDM-PON or PtMP systems that can for example represent the downstream wavelength passage；When T values are " during Γ, such as it is the downstream wavelength passage in PtP WDM-PON or PtP systems that can represent the downstream wavelength passage.It should be understood that the embodiment of the present invention is only illustrated by taking the Profile PLOAM message shown in table 1 as an example, but the present invention is not limited thereto, for example, it is also possible to using other fields or content in Profile PLOAM message, carry out indicating downlink wavelength channel information.

In embodiments of the present invention, the downstream wavelength channel information also includes the type for the downlink business that the downstream wavelength passage can be transmitted.Alternatively, in embodiments of the present invention, downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message can carry the field of the type for the downlink business that can be transmitted for indicating downlink wavelength channel；Preferably, OC Structure fields, PON OC Body fields or the PON id fields that the PSBd fields include are used for the type for indicating the downlink business that the downstream wavelength passage can be transmitted.

For example, PON id fields can include the field that length is at least the type for being used for the downlink business that instruction can be transmitted of 2 bits, for example, when the field value is " 00 ", the downlink business that can represent the downstream wavelength passage can transmit is PON business；When the field value is " 01 ", the downlink business that can represent the downstream wavelength passage can transmit is PtP Ethernet services；When the field value is " 10 ", the downlink business that can represent the downstream wavelength passage can transmit is common public radio interface（Common Public Radio Interface, referred to as " CPRI ") business；When the word When section value is " 11 ", the downlink business that can represent the downstream wavelength passage can transmit is long range GPON or XGPON business.It should be understood that the embodiment of the present invention is only illustrated as example, but the present invention is not limited thereto.

It should be understood that, in embodiments of the present invention, only illustrated by taking the type for the downlink business that type and/or the downstream wavelength passage that down going wave long-channel information includes downstream wavelength passage can be transmitted as an example, but the present invention is not limited thereto, the downstream wavelength channel information can also include the other information related to the downstream wavelength passage, for example, the information such as mark of the downstream wavelength passage.

In S120, ONU can determine ONU target downlink wavelength according to the type of the downstream wavelength passage.

Specifically, ONU can determine whether the type of the downstream wavelength passage matches with the device type of itself；If it does, then the downstream wavelength passage can be defined as ONU target downlink wavelength channel by ONU；If it does not match, ONU redefines target downlink wavelength channel.When ONU determines that the type that there are multiple downstream wavelength passages is matched with the device type of itself, downstream wavelength corresponding with any one downstream wavelength passage in the plurality of downstream wavelength passage can be defined as the target downlink wavelength of the ONU by ONU.

In embodiments of the present invention, ONU can be matched when obtaining the type of downstream wavelength passage every time, if finding the downstream wavelength passage of matching, it can will then be defined as the target downlink wavelength channel of the ONU with the downstream wavelength passage, so as to complete the initialization of ONU downstream wavelength；ONU can also again be matched when obtaining the type of multiple or all downstream wavelength passages, one or more target downlink wavelength channels are determined from multiple downstream wavelength passages with equipment of itself type matching again, finally again in one or more downstream wavelengths corresponding with the one or more target downlink wavelength channels, determine the target downlink wavelength of the ONU, so that the initialization of ONU downstream wavelength is completed, but the embodiment of the present invention is not limited to this.

It will also be understood that, in embodiments of the present invention, ONU can store acquired downstream wavelength channel information, consequently facilitating ONU is according to these downstream wavelength channel informations, the type of downstream wavelength passage is for example recognized, or determines type of downlink business that downstream wavelength passage can be transmitted etc..

In embodiments of the present invention, alternatively, the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；

Wherein, this determines the target downlink wavelength channel of the ONU according to the type of the wavelength channel from least one downstream wavelength passage, including：

According to the type of the wavelength channel and the type of the downlink business that can be transmitted, from this at least one The target downlink wavelength channel is determined in downstream wavelength passage, wherein, the type of the target downlink wavelength channel matches with the device type of the ONU, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU downlink business supported.

I.e. in this embodiment, when ONU determines target downlink wavelength, not only consider whether the type of downstream wavelength passage matches with the device type of the ONU, further contemplate the downlink business that downstream wavelength passage can be transmitted type whether the type matching with the ONU downlink business supported, consequently facilitating the ONU picks out more preferred target downlink wavelength, efficiency thus, it is possible to improve downstream wavelength initialization, ONU is avoided to re-start the initialization of downstream wavelength, and the interference to miscellaneous equipment.Unit is received in the downlink frame transmitted by optical line terminal, carry the type information of downstream wavelength passage, so as to recognize the type of downstream wavelength passage under multiple passive optical network Coexistence Situations, target downlink wavelength thus, it is possible to which the wavelength of the downstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

It should be understood that in above-mentioned and the following example of the method initialized according to the wavelength of the present invention, illustrated so that PtP WDM-PON ONU carry out wavelength initialization as an example, but the present invention is not limited thereto, the initialization of traveling wave length.

It will also be understood that, in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and any limit is constituted without tackling the implementation process of the embodiment of the present invention.

Above in conjunction with Fig. 1 to Fig. 4 c, the method 100 of ONU according to embodiments of the present invention downstream wavelength initialization is described in detail from ONU sides, below in conjunction with Fig. 5 to Fig. 8, the method 200 of ONU according to embodiments of the present invention upstream wavelength initialization is described in detail from ONU sides.

As shown in figure 5, showing the indicative flowchart of the method 200 for the wavelength initialization for occupying the embodiment of the present invention, this method 200 can be performed by ONT and/or ONU, for example, this method 200 is performed by PtP WDM-PON ONU.As shown in figure 5, this method 200 includes：

S220, optical network unit ONU receives the downlink frame of optical line terminal OLT response, and the downlink frame carries the field of the upstream wavelength channel information for indicating current wavelength passage, and the upstream wavelength channel information includes the type of the wavelength channel；

S230, the ONU determine the target upstream wavelength passage of the ONU according to the type of the wavelength channel from least one upstream wavelength passage, wherein, each wavelength channel and a upstream wavelength passage --- correspondence, the type of wavelength channel corresponding with the target upstream wavelength passage matches with the device type of the ONU.

Alternatively, this method also includes：S210, optical network unit ONU sends uplink frame to optical line terminal OLT, and the uplink frame carries the field of the device type for indicating the ONU；

Wherein, uplink frame is referred to as registration response.

I.e. in embodiments of the present invention, optical network unit ONU sends to optical line terminal OLT and responded for the registration for asking upstream wavelength to be calibrated on upstream wavelength passage, and registration response carries the field for the device type for being used to indicate the ONU；OLT is received after registration response, can know ONU long-channel information；So as to which ONU can be according to the type of the upstream wavelength passage, received with ONU in the corresponding upstream wavelength passage of upstream wavelength channel information, i.e. in one or more upstream wavelength passages that OLT can receive registration response, it is determined that with target upstream wavelength passage that the device type of the ONU matches and its corresponding target upstream wavelength, so as to realize the initialization of ONU upstream wavelength.Member sends registration response to optical line terminal, and receive the type information of the upstream wavelength passage of optical line terminal transmission, so as to recognize the type of upstream wavelength passage under multiple passive optical network Coexistence Situations, target upstream wavelength thus, it is possible to which the wavelength of the upstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

Specifically, in S210, ONU can be sent to OLT by AMCC passages on upstream wavelength passage and be responded for the registration for asking upstream wavelength to be calibrated, and registration response carries the ONU the type fields for the device type for being used to indicate the ONU.For example, the length of the ONU the type fields can be at least 1 bit, the value of the ONU the type fields can be for example " 0 " and " 1 ", wherein, value " 0 " for example indicates that the ONU is TWDM-PON ONU or PtMP ONU;Value " Γ for example indicates that the ONU is PtP WDM-PON ONU or PtP ONU, but the present invention is not limited thereto.

In embodiments of the present invention, registration response for example, sequence number（Serial Number, referred to as " SN ") respond, and the field of the device type for indicating the ONU can also be carried in SN responses, existing field or content in SN responses can be utilized, or the field or content newly increased in being responded using the SN, to indicate the device type of the ONU.For example, registration response according to embodiments of the present invention can have content and form as shown in table 2. Table 2

As shown in table 2, in registration response, the content " 0000000A " in the 17th eight hytes can represent the purposes of registration response, such as representing whether registration response is used for wavelength calibration；In registration response, ONU device type can be represented with the content " 0000 000T " in the 18th eight hytes, wherein, when T values are " 0 ", it is TWDM-PON ONU or PtMP ONU that can for example represent the ONU;When T values are " during Γ, such as it is PtP WDM-PON ONU or PtP ONU that can represent the ONU.It should be understood that, the embodiment of the present invention is only illustrated by taking the registration response shown in table 2 as an example, but the present invention is not limited thereto, for example, ONU device type can also be indicated using the registration response of other forms or content, and the embodiment of the present invention does not limit length, position, span and the value implication of above-mentioned field.

In embodiments of the present invention, alternatively, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

Specifically, in embodiments of the present invention, ONU can also backfill the PON OC Body of OLT transmissions The type of the downstream wavelength passage of field or PON id fields, the PON OC Body fields and the PON id fields where for indicating the ONU, so as to indicate the device type of the ONU indirectly.It should be understood that the embodiment of the present invention is not limited to this, for example, ONU can also indicate ONU device type indirectly by backfilling other fields of OLT transmissions, for example, Psync fields, SFC structure fields, OC structure fields etc..

In S220, ONU receives OLT and the upstream wavelength channel information sent is responded according to the registration, and the upstream wavelength channel information includes the type of the upstream wavelength passage.For example, OLT can send upstream wavelength channel information by message format as shown in table 3 to ONU.

Table 3

As shown in table 3, in the message format, the type of upstream wavelength passage can be represented with the content " 0000 000T " in the 14th eight hytes, wherein, when T values are " 0 ", it is the upstream wavelength passage in TWDM-PON or PtMP systems that can for example represent the upstream wavelength passage；When T values are " during Γ, such as it is the upstream wavelength passage in PtP WDM-PON or PtP systems that can represent the upstream wavelength passage.It should be understood that the embodiment of the present invention is only illustrated by taking the message format shown in table 3 as an example, but the present invention is not limited thereto, for example, ONU can also receive OLT using other lattice The field of formula or content indicates upstream wavelength channel information.

In embodiments of the present invention, alternatively, the upstream wavelength channel information also includes the type for the uplink service that the upstream wavelength passage can be transmitted.It is for instance possible to use length is at least 2 bit fields to indicate the type for the uplink service that upstream wavelength passage can be transmitted, for example, when the field value is " 00 ", the uplink service that can represent the upstream wavelength passage can transmit is PON business；When the field value is " 01 ", the uplink service that can represent the upstream wavelength passage can transmit is PtP Ethernet services；When the field value is " 10 ", the uplink service that can represent the upstream wavelength passage can transmit is general CPRI business；When the field value is " 11 ", the uplink service that can represent the upstream wavelength passage can transmit is GPON business.It should be understood that the embodiment of the present invention is only illustrated as example, but the present invention is not limited thereto.

It will also be understood that, in embodiments of the present invention, only illustrated by taking the type for the uplink service that type and/or the upstream wavelength passage that upgoing wave long-channel information includes upstream wavelength passage can be transmitted as an example, but the present invention is not limited thereto, the upstream wavelength channel information can also include the other information related to the upstream wavelength passage, for example, the information such as mark of the upstream wavelength passage.

The target upstream wavelength of the ONU is determined according to the type of the upstream wavelength passage in S230, ONU, wherein, the type and the device type of the ONU of target upstream wavelength passage corresponding with the target upstream wavelength match.

Specifically, ONU can determine whether the type of the upstream wavelength passage matches with the device type of itself；If it does, then upstream wavelength corresponding with the upstream wavelength passage can be defined as ONU target upstream wavelength by ONU；If it does not match, ONU redefines target upstream wavelength.When ONU determines that the type that there are multiple upstream wavelength passages is matched with the device type of itself, upstream wavelength corresponding with any one upstream wavelength passage in the plurality of upstream wavelength passage can be defined as the target upstream wavelength of the ONU by ONU.

In embodiments of the present invention, ONU can be matched when obtaining the type of upstream wavelength passage every time, if finding the upstream wavelength passage of matching, then upstream wavelength corresponding with the upstream wavelength passage can be defined as the target upstream wavelength of the ONU, so as to complete the initialization of ONU upstream wavelength；ONU can also again be matched when obtaining the type of multiple or all upstream wavelength passages, one or more target upstream wavelength passages are determined from multiple upstream wavelength passages with equipment of itself type matching again, finally again in one or more upstream wavelengths corresponding with the one or more target upstream wavelength passages, determine the target upstream wavelength of the ONU, so that the initialization of ONU upstream wavelength is completed, but the embodiment of the present invention is not limited to this. It will also be understood that, in embodiments of the present invention, ONU can store acquired upstream wavelength channel information, consequently facilitating ONU is according to these upstream wavelength channel informations, the type of upstream wavelength passage is for example recognized, or determines type of uplink service that upstream wavelength passage can be transmitted etc..

In embodiments of the present invention, alternatively, the upstream wavelength channel information also includes the type for the uplink service that the wavelength channel can be transmitted；

Wherein, the ONU determines the target upstream wavelength passage of the ONU according to the type of the wavelength channel from least one upstream wavelength passage, including：

The ONU is according to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength passage is determined from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match, and the type of uplink service that can transmit of the target upstream wavelength passage and the type matching of the ONU uplink services supported.

I.e. in this embodiment, when ONU determines target upstream wavelength, not only consider whether the type of upstream wavelength passage matches with the device type of the ONU, further contemplate the uplink service that upstream wavelength passage can be transmitted type whether the type matching with the ONU uplink services supported, consequently facilitating the ONU picks out more preferred target upstream wavelength, efficiency thus, it is possible to improve upstream wavelength initialization, ONU is avoided to re-start the initialization of upstream wavelength, and the interference to miscellaneous equipment.

It should be understood that during ONU upper electricity registrations first, it is not known that the type and purposes of each upstream wavelength passage, thus ONU can scan the upstream wavelength scope all or in part supported.For example, ONU can be randomly provided the initial uplink wavelength for sending signal, it is possible to adjust initial uplink wavelength according to default step-length；ONU can also receive and dispatch wavelength according to acquiescence set in advance, set the initial uplink wavelength, and thus ONU can send registration response on one or more initial uplink wavelength.When ONU, which receives OLT, responds the upstream wavelength channel information sent according to the registration, it may be a upstream wavelength passage to show that ONU sends this to register the passage responded corresponding to used upstream wavelength for the OLT.Thus ONU can send registration response on multiple initial uplink wavelength, with fetching portion or the relevant information of whole upstream wavelength passages, so as to correctly carry out the initialization of upstream wavelength.

It should also be understood that when multiple ONU simultaneously report registration respond when, might have more than two ONU and just adjust identical upstream wavelength, thus cause discovery collision and can not normal registration.Now, ONU can wait the registration request of next cycle, do not change transmission wavelength and simply wait for a random delay and retransmit, so as to have an opportunity to avoid conflicting and allowing OLT to receive its registration response.Member sends registration response to optical line terminal, and receives the class of the upstream wavelength passage of optical line terminal transmission Type information, so as to recognize the type of upstream wavelength passage under multiple passive optical network Coexistence Situations, target upstream wavelength thus, it is possible to which the wavelength of the upstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, as shown in fig. 6, this method 200 also includes：

S240, receives the registration request of OLT transmissions, and the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, this sends registration response to optical line terminal OLT, including：

5211, determine whether the device type of the ONU matches with the device type for allowing to register equipment；

5212, when it is determined that the device type of the ONU allows the device type for registering equipment to match with this, registration response is sent to the OLT.

I.e. in embodiments of the present invention, ONU can first receive the registration request of OLT transmissions, it is possible to the device type for allowing to register equipment indicated according to the registration request, determine whether the device type of the ONU matches with the device type for allowing to register equipment；If matching, then ONU can send the registration response for asking upstream wavelength to be calibrated to the OLT, registration response carries the field for the device type for being used to indicate the ONU, and the ONU determines the target upstream wavelength of the ONU after the upstream wavelength channel information that OLT is sent according to registration response is received；If it does not match, ONU does not send registration response to the OLT, and the ONU can reset initial upstream wavelength, registration response is sent to other OLT, and target upstream wavelength is finally determined, thus, it is possible to reduce conflict, and improve the efficiency of wavelength initialization.

In embodiments of the present invention, ONU can receive the registration request that OLT is sent in several ways, to indicate the device type for allowing to register equipment.Alternatively, the registration request that the reception OLT is sent, including：

The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

Specifically, for example as shown in Fig. 7, Bandwidth map figure（Bandwidth Map, referred to as " BWmap ") field can include N number of distribution structure（Allocation structure) field, i.e.,

The fields of Allocation structure 1, the fields of Allocation structure 2, Allocation structure N fields, wherein, N is natural number, each Allocation structure field lengths can be 8 bytes, each Allocation structure fields can include 14 bits Alloc-ID fields, The Flags fields of 2 bits, the StartTime fields of 16 bits, the GrantSize fields of 16 bits, the FWI fields of 1 bit, the HEC fields of the BurstProfile fields of 2 bits and 13 bits, wherein, the Alloc-ID fields are used for the mark for representing the bandwidth allocation element in ONU, and the value of Alloc-ID fields implication indicated when being 1024 to 16383 retains；The Flags fields are used to represent whether reporting uplink sends the size that Slow is deposited to ONU, and represent whether ONU sends PLOAM message；Between the StartTime fields are represented at the beginning of ONU transmissions；The GrantSize fields are used for the time span for representing that ONU is sent；The FWI fields represent that ONU wakes up mark；The BurstProfile fields represent the template index that happens suddenly；The HEC fields represent to mix error correcting.

The instruction that is used for according to embodiments of the present invention allows the registration request for registering the device type of equipment can not change the Allocation structure field structures shown in Fig. 7, and value that can be only to some fields in Allocation structure fields is redefined, to indicate the device type for allowing to register equipment.For example, when the value of Alloc-ID fields is 1024, can indicate to allow to register equipment as PtP WDM-PON ONU;In another example, in the value between the value of Alloc-ID fields is 1024 to 16383, for indicating to allow to register equipment as TWDM-PON ONU or PtP WDM-PON ONU.

On the other hand, registration request according to embodiments of the present invention can also change Allocation structure field structures, for example, include being used to indicate to allow to register the ONU the type fields of the device type of equipment in Allocation structure fields, the length of the ONU the type fields can be at least 1 bit, the value of the ONU the type fields can be for example " 0 " and " 1 ", wherein, value " 0 " for example indicates to allow to register equipment as TWDM-PON ONU or PtMP ONU;Value " Γ for example indicates to allow to register equipment as PtP WDM-PON ONU or PtP ONU, but the present invention is not limited thereto.

In embodiments of the present invention, alternatively, the registration request of OLT transmissions is received, including：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

I.e. in this embodiment, ONU can receive the PLOAM message of OLT transmissions, and the PLOAM message can include the field for being used to indicate that this allows to register the device type of equipment.Similarly, the existing field structure of PLOAM message can be used, or increases field in PLOAM message, to indicate the device type for allowing to register equipment, but the present invention is not limited thereto.

In embodiments of the present invention, alternatively, what the uplink frame was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU. Member sends registration response to optical line terminal, and receive the type information of the upstream wavelength passage of optical line terminal transmission, so as to recognize the type of upstream wavelength passage under multiple passive optical network Coexistence Situations, target upstream wavelength thus, it is possible to which the wavelength of the upstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, as shown in figure 8, before the optical network unit ONU receives the downlink frame that optical line terminal OLT is sent, this method 200 also includes：

S250, receives the OLT is responded according to the registration or the uplink frame is sent wavelength channel switching command or wavelength regulation order, to indicate that the ONU carries out upstream wavelength calibration.

Specifically, after ONU sends registration response to OLT, OLT can determine that ONU sends the upstream wavelength of registration response and whether is aligned completely with the OLT reception wavelength of upstream wavelength passage used according to the measurement performance number for receiving the registration and responding optical signal.For example, when OLT is less than wealthy value according to receiving power, it can determine that ONU sends the upstream wavelength of registration response and upstream wavelength passage that OLT is used and non-fully corresponding, then OLT can send wavelength channel switching command or wavelength regulation order to ONU, to indicate that the ONU carries out upstream wavelength calibration.Preferably, ONU receives OLT and the wavelength regulation order sent is responded according to the registration, to indicate that the ONU carries out upstream wavelength calibration.The wavelength regulation order can for example have the structure and content shown in table 4.

Table 4

Eight hytes

Content is described

Sequence number

When value is 0x03FF, Vender-ID and VSSN are effective

1-2 ONU-ID

Value

3 TBD wavelength regulation message

4 Seq No sequence numbers

Supplier's mark that [ATIS-0300220] abides by the regulations

In accordance with character as defined in ASCII/ANSI

5-8

Vendor-ID is for example： Vendor—ID = ABCD → Byte 5 = 0x41, Byte

6 = 0x42, Byte 7 = 0x43, Byte 8 = 0x44.

9-12 VSSN suppliers sequence number

D:Adjust direction

13 0000 000D

D=0- is adjusted toward short wavelength D=1- is adjusted toward long wavelength

14 Tune step units are the minimal adjustment granularity that equipment is supported

15-40 Padding are filled

41-48 MIC message integrity checks

ONU receives the wavelength channel switching command or wavelength regulation order, the upstream wavelength that response can be registered to sending is finely adjusted, and registration response can be sent to OLT using the upstream wavelength after regulation again, it is possible thereby to which receiving OLT responds the upstream wavelength channel information sent according to the registration.

It should be understood that in above-mentioned and the following example of the method initialized according to the wavelength of the present invention, with

PtP WDM-PON ONU illustrated exemplified by wavelength initialization, but the present invention is not limited thereto, the initialization of traveling wave length.

Therefore, the method of the EPON medium wavelength initialization of the embodiment of the present invention, registration response is sent to optical line terminal by optical network unit, and receive the type information of the upstream wavelength passage of optical line terminal transmission, so as to recognize the type of upstream wavelength passage under multiple passive optical network Coexistence Situations, target upstream wavelength thus, it is possible to which the wavelength of the upstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

Above in conjunction with Fig. 1 to Fig. 8, the ONU according to embodiments of the present invention initial ^ of downstream wavelength is described in detail from ONU sides<Method 100 and upstream wavelength initialization method 200, below in conjunction with Fig. 9 to Figure 12, the method 300 of facility registration according to embodiments of the present invention is described in detail from ONU sides.

Fig. 9 shows the indicative flowchart of the method 300 of facility registration according to embodiments of the present invention, and this method 300 can be performed by ONT and/or ONU, for example, this method 300 is performed by PtP WDM-PON ONU.As shown in figure 9, this method 300 includes：

S310, sends registration response, the registration is responded for asking the OLT allocation identifications, and registration response carries the field for the device type for being used to indicate Guang Wang Network unit ONUs to optical line terminal OLT；

S320, receive the OLT according to the registration in response to determining that the device identification of the ONU sent when the device type of the ONU is with allowing the device type for registering equipment to match； S330, the transmission of row information is entered according to the device identification.The registration of allocation identification is asked to respond, and registration response carries the field for the device type for being used to indicate optical network unit ONU；OLT is responded according to the registration, it may be determined that whether the device type of the ONU matches with the device type for allowing to register equipment, if it does, OLT can send ONU device identification to ONU；If mismatched, OLT can indicate that ONU is re-registered.Therefore, ONU can receive the device identification for the ONU that OLT is sent when it is determined that the device type of the ONU is with allowing the device type for registering equipment to match；And the transmission of row information can be entered according to the device identification, so as to realize ONU registration.

Therefore, the method of facility registration in the EPON of the embodiment of the present invention, registration response is sent to optical line terminal by optical network unit, and the field of the device type for indicating optical network unit is carried in registration response, optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.The registration response of upstream wavelength calibration is asked, and registration response carries the ONU the type fields for the device type for being used to indicate the ONU.For example, the length of the ONU the type fields can be at least 1 bit, the value of the ONU the type fields can be for example " 0 " and " 1 ", wherein, value " 0 " for example indicates that the ONU is TWDM-PON ONU or PtMP ONU;Value " Γ for example indicates that the ONU is PtP WDM-PON ONU or PtP ONU, but the present invention is not limited thereto.

Alternatively, in embodiments of the present invention, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.Registration response can have structure and content as shown in table 2, for sake of simplicity, will not be repeated here.

In embodiments of the present invention, alternatively, as shown in Figure 10, this method 300 also includes：S340, receives the registration request of OLT transmissions, and the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, S310 this to optical line terminal OLT send registration response, including： 5311, determine whether the device type of the ONU matches with the device type for allowing to register equipment；

5312, when it is determined that the device type of the ONU allows the device type for registering equipment to match with this, registration response is sent to the OLT.

I.e. in embodiments of the present invention, ONU can first receive the registration request of OLT transmissions, it is possible to the device type for allowing to register equipment indicated according to the registration request, determine whether the device type of the ONU matches with the device type for allowing to register equipment；If matching, then ONU can send the registration response for asking distributing equipment to identify to the OLT, registration response carries the field for the device type for being used to indicate the ONU, and after the device identification that the ONU receives OLT distribution, the transmission of row information can be entered according to the device identification；If it does not match, ONU does not send registration response to the OLT.

In embodiments of the present invention, ONU can receive the registration request that OLT is sent in several ways, to indicate the device type for allowing to register equipment.

Alternatively, the registration request that the reception OLT is sent, including：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

Alternatively, the registration request that the reception OLT is sent, including：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

I.e. in embodiments of the present invention, for indicating that the field for allowing to register the device type of equipment can have both been carried in Allocation structure fields, it can also carry in PLOAM message, but the present invention is not limited thereto, and the field can also be carried in other fields or message.

Therefore, the method of facility registration in the EPON of the embodiment of the present invention, registration response is sent to optical line terminal by optical network unit, and the field of the device type for indicating optical network unit is carried in registration response, optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, as shown in figure 11, the reception OLT according to the registration in response to determining that being sent when the device type of the ONU is with allowing the device type for registering equipment to match After the device identification of the ONU, this method 300 also includes：

S350, confirmation is sent to the OLT, and the confirmation is used to indicate that the ONU receives the device identification.

Wherein, the confirmation that ONU is sent to OLT can for example have structure and content as shown in table 5 below.

Table 5

As shown in table 5, in the message format, it can represent that ONU has been received by the device identification ONU-ID of OLT distribution with the content " 0x09 " in the 3rd eight hytes, thus ONU completes the registration of equipment, can open the transmission that service channel enters row information.

In embodiments of the present invention, alternatively, as shown in figure 12, this method 300 also includes：S360, receive the OLT according to the registration in response to determining that the wavelength channel switching command that the sends when device type of the ONU allows the device type for registering equipment to mismatch with this, to indicate that the ONU is re-registered.

I.e. in embodiments of the present invention, ONU sends registration response to OLT, and registration response carries the field for the device type for being used to indicate optical network unit ONU, OLT is responded according to the registration, it can determine whether the device type of the ONU matches with the device type for allowing to register equipment, if it does, OLT can send ONU device identification to ONU；If mismatched, OLT can send wavelength channel switching command to ONU, to indicate that ONU is re-registered.The wavelength channel switching command can for example have structure and content as shown in table 6.

1-2 ONU-ID represent the ONU specified

3 0x21 represent that type of message switches for wavelength channel

4 SeqNo represent unicast PLOAM sequence number

Operation

5 wherein, and value " 0 " represents request；Value " 1 " represents to confirm

Code

The wavelength specified is represented, wherein, AAA represents upstream wavelength； BBB

6 OAAA OBBB

Represent downstream wavelength

7-40 Padding represent filling

41-48 MIC represent that message integrity check should be understood that in above-mentioned and the following example of the method for the facility registration according to the present invention, with

PtP WDM-PON ONU illustrated exemplified by facility registration, but the present invention is not limited thereto, example facility registration.

Above in conjunction with Fig. 1 to Figure 12, it is described in detail from ONU sides according to embodiments of the present invention

The method 300 of the initial method 200 of the initial method 100 of ONU downstream wavelength, upstream wavelength and facility registration, below in conjunction with Figure 13 to Figure 20, the method that the method and apparatus registration of wavelength initialization according to embodiments of the present invention is described in detail from OLT sides.

Figure 13 shows the indicative flowchart of the method 400 of wavelength initialization according to embodiments of the present invention, and this method 400 can be performed by OLT, for example, this method 400 is performed by PtP WDM-PON OLT.As shown in figure 13, this method 400 includes： S410, determine wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passage of optical line terminal OLT, and the upstream wavelength channel information includes the type of upstream wavelength passage；

S420, the wavelength channel information is sent to optical network unit ONU.End determines to include the wavelength channel information of downstream wavelength channel information and/or upstream wavelength channel information, and send the wavelength channel information to optical network unit, optical network unit is enabled to know the information of downstream wavelength passage and/or upstream wavelength passage, so as to recognize the type of downstream wavelength passage and/or upstream wavelength passage under multiple passive optical network Coexistence Situations, thus, it is possible to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, when the wavelength channel information includes the downstream wavelength channel information, this sends the wavelength channel information to optical network unit ONU, including：Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

Alternatively, the EPON operational control body PON OC Body fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields 7 that the downlink physical synchronization blocks include carry the downstream wavelength channel information.

For example, the downstream wavelength channel information can be carried by PSBd fields, specifically, the information can be as the either field carrying included by PSBd fields, and the form of the field is for example as shown in Fig. 3 to Fig. 4 c；On the other hand, content and form as shown in table 1 can be had by carrying the Profile PLOAM message of the downstream wavelength channel information, but for sake of simplicity, will not be repeated here.

Alternatively, the downstream wavelength channel information also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information also includes the type for the uplink service that the upstream wavelength passage can be transmitted.

It should be understood that, the method of the ONU downstream wavelengths initialization of OLT sides description is corresponding with the method 100 shown in Fig. 2 to Fig. 4 c according to embodiments of the present invention, and interaction and correlation properties of the OLT to ONU of the description of OLT sides, function etc. are corresponding with the description of ONU sides, for sake of simplicity, will not be repeated here. End determines downstream wavelength channel information, and send the downstream wavelength channel information to optical network unit, optical network unit is enabled to know the type of downstream wavelength passage and/or the type for the downlink business that can be transmitted, so as to recognize the type of downstream wavelength passage under multiple passive optical network Coexistence Situations, thus, it is possible to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, as shown in figure 14, this method 400 also includes：

S430, receives the registration response that the ONU is sent on the upstream wavelength passage, the registration is responded for asking upstream wavelength to be calibrated, and registration response carries the field for the device type for being used to indicate the ONU；

Wherein, this sends the wavelength channel information to optical network unit ONU, including：

S421, blunt responded according to the registration to the ONU of ability sends the upstream wavelength channel information.

I.e. during ONU upstream wavelengths are initialized, OLT can receive the registration response of ONU transmissions, and registration response includes ONU device type information, so that OLT can know ONU device type.OLT can send the upstream wavelength channel information according to registration response to the ONU, consequently facilitating ONU carries out the initialization of upstream wavelength.

In embodiments of the present invention, alternatively, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.Wherein, registration response according to embodiments of the present invention can for example have content and form as shown in table 2, for sake of simplicity, will not be repeated here.

In embodiments of the present invention, OLT for example can send upstream wavelength channel information, for sake of simplicity, will not be repeated here by message format as shown in table 3 to ONU.

In embodiments of the present invention, as shown in figure 15, this method 400 also includes：

S440, registration request is sent to the ONU, and the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, the reception ONU is responded on the upstream wavelength passage to the OLT registrations sent, including： S431, receives the ONU when it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the registration response sent on the upstream wavelength passage.

I.e. in embodiments of the present invention, OLT first can send registration request to ONU, and the device type for allowing to register equipment that the ONU can be indicated according to the registration request determines whether the device type of the ONU matches with the device type for allowing to register equipment；If it does, then ONU can send the registration response for asking upstream wavelength to be calibrated to the OLT, registration response carries the field for the device type for being used to indicate the ONU；If it does not match, ONU can not send registration response to the OLT, thus, it is possible to reduce conflict, and the efficiency of wavelength initialization is improved.

In embodiments of the present invention, OLT can be using various ways to ONU transmission registration requests, to indicate the device type for allowing to register equipment.Alternatively, this sends registration request to the ONU, including：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

In embodiments of the present invention, alternatively, this sends registration request to the ONU, including：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

In embodiments of the present invention, alternatively, as shown in figure 16, before this responds according to the registration and the upstream wavelength channel information is sent to the ONU, this method 400 also includes：

S450, responds to the ONU according to the registration and sends wavelength channel switching command or wavelength regulation order, to indicate that the ONU carries out upstream wavelength calibration.

Preferably, blunt responded according to the registration to the ONU of OLT 4 sends wavelength regulating command, to indicate that the ONU carries out upstream wavelength calibration.

Specifically, ONU to OLT send registration response after, OLT can according to receive the registration respond performance number, determine ONU send the registration response upstream wavelength whether with OLT use upstream wavelength passage it is completely corresponding.For example, when OLT is less than wealthy value according to receiving power, it can determine that ONU sends the upstream wavelength of registration response and upstream wavelength passage that OLT is used and non-fully corresponding, then OLT can send wavelength channel switching command or wavelength regulation order to ONU, to indicate that the ONU carries out upstream wavelength calibration.Preferably, ONU receives OLT and the wavelength regulation order sent is responded according to the registration, to indicate that the ONU carries out upstream wavelength calibration.The wavelength regulation order can for example have the structure and content shown in table 4, for sake of simplicity, will not be repeated here. Method 200 shown in Fig. 5 to Fig. 8 of example is corresponding, and interaction and correlation properties of the OLT to ONU of the description of OLT sides, function etc. are corresponding with the description of ONU sides, for sake of simplicity, will not be repeated here.

It should be understood that in above-mentioned and the following example of the method for the just blunt wavelength initialization according to the present invention, with

It will also be understood that, in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and any limit is constituted without tackling the implementation process of the embodiment of the present invention.End receives the registration response that optical network unit is sent, and the type information of upstream wavelength passage is sent to optical network unit, so that optical network unit is under multiple passive optical network Coexistence Situations, the information such as the type of upstream wavelength passage and/or the type for the downlink business that can be transmitted can be recognized, thus, it is possible to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

Below in conjunction with Figure 17 to Figure 20, the method that facility registration according to embodiments of the present invention is described in detail from OLT sides.

Figure 17 shows the indicative flowchart of the method 500 of facility registration according to embodiments of the present invention, and this method 500 can be performed by OLT, for example, this method 500 is performed by PtP WDM-PON OLT.As shown in figure 17, this method 500 includes：

S510, receives the registration response that optical network unit ONU is sent, the registration is responded for asking optical line terminal OLT allocation identification, and registration response carries the field for the device type for being used to indicate the ONU；

S520, according to the registration in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；

S530, when it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the device identification of the ONU is sent to the ONU.

Specifically, what optical line terminal OLT reception optical network unit ONU was sent is used to ask the registration of allocation identification to respond, and registration response carries the field of the device type for indicating optical network unit ONU；OLT is responded according to the registration, it may be determined that the device type of the ONU is with allowing registration Whether the device type of equipment matches, if it does, OLT can send ONU device identification to ONU；If mismatched, OLT can indicate that ONU is re-registered.Thus, OLT can send the device identification of the ONU so that ONU can enter the transmission of row information according to the device identification, so as to realize ONU registration when it is determined that the device type of the ONU is with allowing the device type for registering equipment to match to ONU.

Therefore, the method of facility registration in the EPON of the embodiment of the present invention, the registration response that optical network unit is sent is received by optical line terminal, and the field of the device type for indicating optical network unit is carried in registration response, optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, as shown in figure 18, this method 500 also includes：S540, registration request is sent to the ONU, and the registration request is carried for indicating the shown field for allowing to register the device type of equipment；

Wherein, the registration response that the S510 reception optical network unit ONUs are sent, including：

S511, receives the ONU it is determined that the registration that the device type of the ONU is sent when allowing the device type for registering equipment to match with this is responded.

I.e. in embodiments of the present invention, OLT first can send registration request to ONU, and the device type for allowing to register equipment that the ONU can be indicated according to the registration request determines whether the device type of the ONU matches with the device type for allowing to register equipment；If it does, then ONU can send the registration response for asking distributing equipment to identify to the OLT, registration response carries the field for the device type for being used to indicate the ONU；If it does not match, ONU does not send registration response to the OLT.

In embodiments of the present invention, OLT can send registration request to ONU in several ways, to indicate the device type for allowing to register equipment.

Alternatively, this sends registration request to the ONU, including：Being sent to the ONU includes distribution The value of allocation unit mark Alloc-ID fields in the registration request of structure Allocation structure fields, the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

Alternatively, this sends registration request to the ONU, including：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

I.e. in embodiments of the present invention, for indicating that the field for allowing to register the device type of equipment can have both been carried in Allocation structure fields, it can also carry in PLOAM message, but the present invention is not limited thereto, and the field can also be carried in other fields or message.For sake of simplicity, will not be repeated here.

As shown in figure 19, in embodiments of the present invention, after this sends the device identification of the ONU to the ONU, this method 500 also includes：

S550, receives the confirmation of ONU transmissions, and the confirmation is used to indicate that the ONU receives the device identification.

That is OLT to ONU after device identification is sent, and ONU can send confirmation to OLT, and the confirmation can for example have structure and content as shown in table 5 below, for sake of simplicity, will not be repeated here.

In embodiments of the present invention, as shown in figure 20, this method 500 also includes：

S560, when it is determined that the device type of the ONU allows the device type for registering equipment to mismatch with this, sends wavelength channel switching command, to indicate that the ONU is re-registered to the ONU.

I.e. in embodiments of the present invention, ONU sends registration response to OLT, and registration response carries the field for the device type for being used to indicate optical network unit ONU, OLT is responded according to the registration, it can determine whether the device type of the ONU matches with the device type for allowing to register equipment, if it does, OLT can send ONU device identification to ONU；If mismatched, OLT can send wavelength channel switching command to ONU, to indicate that ONU is re-registered.The wavelength channel switching command can for example have structure and content as shown in table 6, for sake of simplicity, will not be repeated here.

It should be understood that, the method of the ONU registrations of OLT sides description is corresponding with the method 300 shown in Fig. 9 to Figure 12 according to embodiments of the present invention, and interaction and correlation properties of the OLT to ONU of the description of OLT sides, function etc. are corresponding with the description of ONU sides, for sake of simplicity, will not be repeated here.

It should be understood that in above-mentioned and the following example of the method for the facility registration according to the present invention, with

Below in conjunction with upstream wavelength initialization, downstream wavelength initialization, registration process, come together to describe the embodiment of the present invention in detail, it is specific as shown in figure 21, including：

S221, on PtP WDM-PON ONU after initial 4 an ancient type of spoon of electricity, close service channel, AMCC passages are only opened, wavelength is received by adjusting, downstream wavelength passage is scanned, if detecting reception optical signal, a downstream wavelength passage may be then found, down-going synchronous is then carried out, the downlink frame from OLT sides AMCC passages is received.

If pre-set acquiescence receives and dispatches wavelength to PtP WDM-PON ONU, or the transmitting-receiving wavelength pair that can be supported has been set when laying, according to preset wavelength value when then electric in initialization, acquiescence transmitting-receiving wavelength is set or a wavelength pair is randomly choosed from multiple transmitting-receiving wavelength centerings of support, and the transmitting-receiving wavelength of oneself is set accordingly.

5222, OLT broadcast the type of current downlink wavelength channel by AMCC passages, help ONU to recognize the downstream wavelength channel type and purposes accordingly, and downstream wavelength initialization is carried out so as to correct.

OLT, to indicate the type of downstream wavelength passage, can here repeat no more by the way of as described in Fig. 3, Fig. 4 a Fig. 4 b, specifically refer to above-described embodiment.

5223, PtP WDM-PON ONU parse OLT and issue the field described in step S222 in different downstream wavelength passages, learn the information of current downlink wavelength channel.ONU can also repeat the above steps S221 and S222, all downstream wavelength channel informations in learning system, then select suitable initial downlink to receive wavelength accordingly. In request, portable equipment type identification, in order to which ONU is distinguished, currently allows which type of ONU to register.Concrete implementation mode, refer to the introduction of other embodiment above, repeats no more here.

S225, PtP WDM-PON ONU are received after the registration request that OLT is issued, according to the device type identification means described in step S224, parsing is current to allow the device type of registration, if with the matching of this device type, being randomly provided up transmission wavelength, it is adjusted on the basis of current up transmission wavelength according to default step-length, then on the transmission wavelength newly adjusted again, registration response is sent by AMCC passages.

S226, PtP WDM-PON ONU are received in the registration response reported, it is necessary to which Portable device type id field, specific form can be as shown in table 3.

S227, when multiple PtP WDM-PON ONU simultaneously report registration respond when, might have more than two ONU just adjust identical send wavelength so that cause discovery collision and can not normal registration.ONU can wait the registration request of next cycle, and then random adjustment send wave length carries out registration trial, so have an opportunity to avoid conflicting and allowing OLT to receive its registration response.

In the registration reply message that Current standards are defined, there is a field to be used for informing that the purpose that OLT, current ONU send registration response is only to make upstream wavelength calibration, or require to register and ask OLT to distribute ONU-ID.During ONU upper electricity registrations first, it is not known that the type and purposes of each upstream wavelength passage, so the whole up transmission wave-length coverage supported can be scanned, or the upstream wavelength of all supports is attempted.

, it is necessary to issue the upstream wavelength instruction for carrying upstream wavelength channel type after registrations of the OLT receiving ONU for doing wavelength calibration is responded, realize as shown in table 7 below：Table 7

Can also be activated business type field according to above-mentioned similar method, indicate that this downstream wavelength passage needs the business carried, field value is comprised at least:0_PON business；L_PtP Ethernet services； 2— CPRI; 3_ (X)G-PON reach extender optical.

OLT distributes ONU-ID and to be handed down to wavelength regulation order as shown in table 8 below after ONU requests ONU-ID registration response is received：

Table 8

Octet Content Description

1-2 ONU-ID Directed message to one ONU.

3 0x21 Message type ID ''Tuning—Control".

4 SeqNo Unicast PLOAM sequence number.

5 Operation Code 0 - Request;

1 - Confirm, and byte 10 applies, ignore bytes 5-9 and 11-40;

6 0AAA 0BBB Destination wavelengths.

(TBD) AAA: Number of upstream wavelength 0-7 (TBD)

BBB: Number of downstream wavelength 0-7 (TBD) Octet Content Description

7-40 Padding Set to 0x00 by the transmitter; treated as "don't care" by the receiver.

41-48 MIC Message integrity check.

S228, PtP WDM-PON ONU may learn the information of all upstream wavelength passages by repeat step S225 and step S226, select suitable upstream wavelength passage, and set transmission wavelength accordingly.

S229, PtP WDM-PON ONU receive the ONU-ID of distribution, alternatively, report response message to OLT.The form of response message is as shown in table 9 below：

Table 9

S220, PtP WDM-PON ONU can confirm that after the ONU-ID distributed and completed wavelength initialization and registered, and open service channel and normally receive and dispatch communication.

Above in conjunction with Fig. 1 to Figure 21, the method of the method and facility registration of wavelength initialization according to embodiments of the present invention is described in detail, below in conjunction with Figure 22 to Figure 33, Guang Wang Network units and optical line terminal according to embodiments of the present invention is described in detail.

As shown in figure 22, optical network unit ONU 10 according to embodiments of the present invention includes：Receiving module 11, the downlink frame for receiving optical line terminal OLT transmission, downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the type of the wavelength channel；

Determining module 12, for the type according to the wavelength channel, is determined from least one downstream wavelength The target downlink wavelength channel of the ONU, wherein, each wavelength channel and a downstream wavelength passage are corresponded, and the type of wavelength channel corresponding with the target downlink wavelength channel matches with the device type of the ONU.

Therefore, the optical network unit of the embodiment of the present invention, by in the downlink frame that optical network unit receives transmitted by optical line terminal, carry the type information of downstream wavelength passage, so as to recognize the type of downstream wavelength passage under multiple passive optical network Coexistence Situations, target downlink wavelength thus, it is possible to which the wavelength of the downstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and can avoid the interference to miscellaneous equipment.

In embodiments of the present invention, alternatively, the downlink frame that the receiving module 11 is received is particularly for the downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message for indicating the downstream wavelength channel information.

Alternatively, EPON operational control body PON OC Body fields or EPON the mark PON id fields that the downlink physical synchronization blocks include are used to indicate the downstream wavelength channel information.

In embodiments of the present invention, alternatively, the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；Wherein, the determining module 12 specifically for：According to the type of the wavelength channel and the type of the downlink business that can be transmitted, the target downlink wavelength channel is determined from least one downstream wavelength passage, wherein, the type of the target downlink wavelength channel and the device type of the ONU 10 match, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU 10 downlink business supported.

In embodiments of the present invention, alternatively, the ONU 10 is PtP WDM-PON ONU.

It should be understood that, the ONU that optical network unit 10 according to embodiments of the present invention may correspond in the embodiment of the present invention, and above and other operation and/or function of the modules in optical network unit 10 is respectively in order to realize the corresponding flow of the method 100 in Fig. 1 to Fig. 4 c, for sake of simplicity, will not be repeated here.

Figure 23 shows the schematic block diagram of optical network unit 20 according to embodiments of the present invention, as shown in Figure 23, and the optical network unit ONU 20 includes：

Receiving module 22, the downlink frame for receiving optical line terminal OLT response, downlink frame is carried For the field for the upstream wavelength channel information for indicating current wavelength passage, the upstream wavelength channel information includes the type of the wavelength channel；

Determining module 23, for the type according to the wavelength channel, the target upstream wavelength passage of the ONU is determined from least one upstream wavelength passage, wherein, each wavelength channel with a upstream wavelength passage --- corresponding, the type of wavelength channel corresponding with the target upstream wavelength passage matches with the device type of the ONU.

Alternatively, the ONU also includes sending module 21, and for sending uplink frame to optical line terminal OLT, the uplink frame carries the field of the device type for indicating the ONU；

Wherein, the uplink frame is referred to as registration response.

Therefore, the optical network unit of the embodiment of the present invention, registration response is sent to optical line terminal by optical network unit, and receive the type information of the upstream wavelength passage of optical line terminal transmission, so as to recognize the type of upstream wavelength passage under multiple passive optical network Coexistence Situations, target upstream wavelength thus, it is possible to which the wavelength of the upstream wavelength passage of type matching to be defined as to ONU, so as to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, the receiving module 22 is additionally operable to：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；Wherein, the determining module 23 is additionally operable to：Determine whether the device type of the ONU 20 matches with the device type for allowing to register equipment；

The sending module 21 specifically for：When the determining module 23 determines that the device type of the ONU 20 allows the device type for registering equipment to match with this, the uplink frame is sent to the OLT.

In embodiments of the present invention, alternatively, the receiving module 22 specifically for：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

In embodiments of the present invention, alternatively, the receiving module 22 specifically for：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

In embodiments of the present invention, alternatively, what the uplink frame that the sending module 21 is sent was carried is used to indicate that the field of the device type of the ONU 20 to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the PON OC Body fields and the PON id fields are used for the type for indicating the downstream wavelength passage at the places of ONU 20, to indicate the ONU 20 Device type.

In embodiments of the present invention, alternatively, the upstream wavelength channel information that the receiving module 22 is received also includes the type for the uplink service that the wavelength channel can be transmitted；

Wherein, the determining module 23 specifically for：According to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength is determined from least one upstream wavelength passage, wherein, the type and the device type of the ONU 20 of the target upstream wavelength passage corresponding with the target upstream wavelength match, and the type of uplink service that can transmit of the target upstream wavelength passage and the type matching of the ONU 20 uplink services supported.

In embodiments of the present invention, alternatively, the receiving module 22 is additionally operable to：Before the uplink frame that the OLT is sent is received, wavelength channel switching command or wavelength regulation order that the OLT is sent according to the uplink frame are received, to indicate that the ONU 20 carries out upstream wavelength calibration.

It should be understood that, the ONU that optical network unit 20 according to embodiments of the present invention may correspond in the embodiment of the present invention, and above and other operation and/or function of the modules in optical network unit 20 is respectively in order to realize the corresponding flow of methods 200 of the Fig. 5 into Fig. 8, for sake of simplicity, will not be repeated here.

Figure 24 shows the schematic block diagram of optical network unit 30 according to embodiments of the present invention.As shown in Figure 24, optical network unit ONU 30 includes：

Sending module 31, for sending registration response to optical line terminal OLT, the registration is responded for asking the OLT allocation identifications, and registration response carries the field for the device type for being used to indicate the ONU 30；

Receiving module 32, the device identification for receiving the ONU 30 that the OLT is sent when the registration sent according to the sending module 31 responds, determines the device type of the ONU 30 with allowing the device type for registering equipment to match；

The transmission of row information is entered in processing module 33, device identification for being received according to the receiving module 32.

Therefore, the optical network unit of the embodiment of the present invention, registration response is sent by optical network unit to optical line terminal, and carries in the registration response field of device type for indicating optical network unit, Optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, as shown in figure 25, the receiving module 32 is additionally operable to：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, the optical network unit also includes determining module 34, for determining whether the device type of the ONU 30 matches with the device type for allowing to register equipment；

The sending module 31 specifically for：When the determining module 34 determines that the device type of the ONU 30 allows the device type for registering equipment to match with this, registration response is sent to the OLT.

In embodiments of the present invention, alternatively, the receiving module 32 specifically for：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields of OLT transmissions indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

In embodiments of the present invention, alternatively, the receiving module 32 specifically for：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

In embodiments of the present invention, alternatively, what the registration response that the sending module 31 is sent was carried is used to indicate that the field of the device type of the ONU 30 to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the PON OC Body fields and the PON id fields are used for the type for indicating the downstream wavelength passage at the places of ONU 30, to indicate the device type of the ONU 30.

In embodiments of the present invention, alternatively, the sending module 31 is additionally operable to：After the device identification that the receiving module 32 receives the ONU 30, confirmation is sent to the OLT, the confirmation is used to indicate that the ONU 30 receives the device identification.

In embodiments of the present invention, alternatively, the receiving module 32 is additionally operable to：Receive the OLT according to the registration in response to determining that the wavelength channel switching command that the sends when device type of the ONU 30 allows the device type for registering equipment to mismatch with this, to indicate that the ONU 30 is re-registered.

It should be understood that optical network unit 30 according to embodiments of the present invention may correspond in the embodiment of the present invention ONU, and modules in optical network unit 30 above and other operation and/or function respectively in order to realize the corresponding flow of methods 300 of the Fig. 9 into Figure 12, for sake of simplicity, will not be repeated here.

Therefore, the optical network unit of the embodiment of the present invention, registration response is sent to optical line terminal by optical network unit, and the field of the device type for indicating optical network unit is carried in registration response, optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.

Figure 26 shows the schematic block diagram of optical line terminal 40 according to embodiments of the present invention.As shown in Figure 26, the optical line terminal OLT 40 includes：

Determining module 41, for determining wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passages of the OLT 40, and the upstream wavelength channel information includes the type of upstream wavelength passage；

Sending module 42, the wavelength channel information for sending the determining module 41 determination to optical network unit ONU.

Therefore, the optical line terminal of the embodiment of the present invention, determine to include the wavelength channel information of downstream wavelength channel information and/or upstream wavelength channel information by optical line terminal, and send the wavelength channel information to optical network unit, optical network unit is enabled to know the information of downstream wavelength passage and/or upstream wavelength passage, so as to recognize the information such as the type of downstream wavelength passage and/or upstream wavelength passage and/or the type for the downlink business that can be transmitted under multiple passive optical network Coexistence Situations, thus, it is possible to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, the determining module 41 determine the wavelength channel information include the downstream wavelength channel information when, the sending module 42 specifically for：Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

In embodiments of the present invention, alternatively, the EPON operational control body PON OC Body fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields 7 that the downlink physical synchronization blocks include carry the downstream wavelength channel information. Therefore, the optical line terminal of the embodiment of the present invention, downstream wavelength channel information is determined by optical line terminal, and send the downstream wavelength channel information to optical network unit, optical network unit is enabled to know the type of downstream wavelength passage and/or the type for the downlink business that can be transmitted, so as to recognize the type of downstream wavelength passage under multiple passive optical network Coexistence Situations, thus, it is possible to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, as shown in figure 27, the optical line terminal also includes receiving module 43, for receiving the registration response that the ONU is sent on the upstream wavelength passage, the registration is responded for asking upstream wavelength to be calibrated, and registration response carries the field for the device type for being used to indicate the ONU；

Wherein, the sending module 42 specifically for：Responded according to the registration to the ONU and send the upstream wavelength channel information.

In embodiments of the present invention, alternatively, the sending module 42 is additionally operable to：Registration request is sent to the ONU, the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, the receiving module 43 specifically for：The ONU is received when it is determined that the device type of the ONU allows the device type for registering equipment match with this, the registration that is sent on the upstream wavelength passage mouthful is to answering.

In embodiments of the present invention, alternatively, the sending module 42 specifically for：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

In embodiments of the present invention, alternatively, the sending module 42 specifically for：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

In embodiments of the present invention, alternatively, what the registration response that the receiving module 43 is received was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

In embodiments of the present invention, alternatively, the sending module 42 is additionally operable to：Before being responded according to the registration upstream wavelength channel information is sent to the ONU, 4 blunt responded according to the registration to the ONU send wavelength channel switching command or wavelength regulation order, to indicate that the ONU carries out upstream wavelength calibration. In embodiments of the present invention, alternatively, the downstream wavelength channel information that the determining module 41 is determined also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information that the determining module is determined also includes the type for the uplink service that the upstream wavelength passage can be transmitted.

It should be understood that, the OLT that optical line terminal 40 according to embodiments of the present invention may correspond in the embodiment of the present invention, and above and other operation and/or function of the modules in optical line terminal 40 is respectively in order to realize the corresponding flow of methods 400 of the Figure 13 into Figure 16, for sake of simplicity, will not be repeated here.

Figure 28 shows the schematic block diagram of optical line terminal 50 according to embodiments of the present invention.As shown in Figure 27, the optical line terminal OLT 50 includes：

Receiving module 51, the registration response for receiving optical network unit ONU transmission, the registration is responded for asking the allocation identifications of OLT 50, and registration response carries the field for the device type for being used to indicate the ONU；

Determining module 52, for the registration that is received according to the receiving module 51 in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；

Sending module 53, for the determining module 52 determine the ONU device type with this allow registration equipment device type match when, the device identification of the ONU is sent to the ONU.

Therefore, the optical line terminal of the embodiment of the present invention, the registration response that optical network unit is sent is received by optical line terminal, and the field of the device type for indicating optical network unit is carried in registration response, optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.

In embodiments of the present invention, alternatively, the sending module 53 is additionally operable to：Registration request is sent to the ONU, the registration request is carried for indicating the shown field for allowing to register the device type of equipment；Wherein, the receiving module 51 specifically for：The ONU is received it is determined that the equipment class of the ONU The registration that type is sent when allowing the device type for registering equipment to match with this is responded.

In embodiments of the present invention, alternatively, the sending module 53 specifically for：Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

In embodiments of the present invention, alternatively, the sending module 53 specifically for：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

In embodiments of the present invention, alternatively, what the registration response that the receiving module 51 is received was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

In embodiments of the present invention, alternatively, the receiving module 51 is additionally operable to：After the sending module 53 sends the device identification of the ONU to the ONU, the confirmation of ONU transmissions is received, the confirmation is used to indicate that the ONU receives the device identification.

In embodiments of the present invention, alternatively, the sending module 53 is additionally operable to：When the determining module 52 determines that the device type of the ONU allows the device type for registering equipment to mismatch with this, wavelength channel switching command is sent to the ONU, to indicate that the ONU is re-registered.

It should be understood that, the OLT that optical line terminal 50 according to embodiments of the present invention may correspond in the embodiment of the present invention, and above and other operation and/or function of the modules in optical line terminal 50 is respectively in order to realize the corresponding flow of methods 500 of the Figure 17 into Figure 20, for sake of simplicity, will not be repeated here.

It should be understood that the terms " system " and " network " are often used interchangeably herein.The terms " and/or ", only a kind of incidence relation for describing affiliated partner, represents there may be three Kind of relation, for example, A and/or can represent：Individualism eight, while in the presence of these three situations of eight and ^ individualisms B.In addition, character "/" herein, typically represent forward-backward correlation object be it is a kind of " or " relation.

It should also be understood that in embodiments of the present invention, " B corresponding with A " represents that B is associated with A, ^ can be determined according to A it is also to be understood that determining that B is not meant to determine that ^ can also be determined according to A and/or other information only according to A according to A

As shown in figure 29, the embodiment of the present invention additionally provides a kind of optical network unit 610, and the optical network unit 610 includes processor 611, memory 612, bus system 613 and receiver 614.Wherein, processor 611, memory 612 are connected with receiver 614 by bus system 613, the memory 612 is used for store instruction, and the processor 611 is used for the instruction for performing the memory 612 storage, to control receiver 614 to receive signal.Wherein, the receiver 614 is used for：The downlink frame that optical line terminal OLT is sent is received, the downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the type of the wavelength channel；The processor 611 is used for：According to the type of the wavelength channel, the target downlink wavelength channel of the ONU is determined from least one downstream wavelength passage, wherein, the type of the target downlink wavelength channel matches with the device type of the ONU.

It should be understood that in embodiments of the present invention, the processor 611 can be CPU（Central Processing Unit, referred to as " CPU "), the processor 611 can also be other general processors, digital signal processor（DSP), application specific integrated circuit（ASIC), ready-made programmable gate array（) or other PLDs, discrete gate or transistor logic, discrete hardware components etc. FPGA.General processor can be microprocessor or the processor can also be any conventional processor etc..

The memory 612 can include read-only storage and random access memory, and provide instruction and data to processor 611.The a part of of memory 612 can also include nonvolatile RAM.For example, memory 612 can be with the information of storage device type.

The bus system 613 can also include power bus, controlling bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 613 in figure. In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 611 or the instruction of software form.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware processor and perform completion, or perform completion with the hardware in processor and software module combination.Software module can be located in random access memory, flash memory, read-only storage, the ripe storage medium in this area such as programmable read only memory or electrically erasable programmable memory, register.The storage medium is located at memory 612, and processor 611 reads the information in memory 612, the step of completing the above method with reference to its hardware.To avoid repeating, it is not detailed herein.

Alternatively, as one embodiment, the downlink frame is particularly for the downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message for indicating the downstream wavelength channel information.

Alternatively, as one embodiment, EPON operational control body PON OC Body fields or EPON the mark PON id fields that the downlink physical synchronization blocks include are used to indicate the downstream wavelength channel information.

Alternatively, as one embodiment, the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；Wherein, the processor 611 determines the target downlink wavelength channel of optical network unit ONU according to the type of the wavelength channel from least one downstream wavelength passage, including：According to the type of the wavelength channel and the type of the downlink business that can be transmitted, the target downlink wavelength channel is determined from least one downstream wavelength passage, wherein, the type of the target downlink wavelength channel matches with the device type of the ONU, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU downlink business supported.

Alternatively, as one embodiment, the optical network unit 610 is PtP WDM-PON ONU.ONU 10, and modules in optical network unit 610 above and other operation and/or function respectively in order to realize the corresponding flow of methods 100 of the Fig. 1 into Fig. 5, for sake of simplicity, will not be repeated here.

As shown in figure 30, the embodiment of the present invention additionally provides a kind of optical network unit 620, and the optical network unit 620 includes processor 621, memory 622, bus system 623 and receiver 624.Wherein, locate Reason device 621, memory 622 are connected with receiver 624 by bus system 623, and the memory 622 is used for store instruction, and the processor 621 is used for the instruction for performing the memory 622 storage, to control receiver 624 to receive signal.Wherein, the receiver 624 is used for：The downlink frame of optical line terminal OLT response is received, the downlink frame carries the field of the upstream wavelength channel information for indicating current wavelength passage, and the upstream wavelength channel information includes the type of the wavelength channel；The processor 621 is used for：According to the type of the wavelength channel, the target upstream wavelength passage of the ONU is determined from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match.

Alternatively, as one embodiment, the receiving module 624 is additionally operable to：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；The ONU 620 also includes sending module 625, and for sending uplink frame to optical line terminal OLT, the uplink frame carries the field of the device type for indicating the ONU；

Wherein, the determining module 621 is additionally operable to：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；

The sending module 625 specifically for：When the determining module determines that the device type of the ONU allows the device type for registering equipment to match with this, the uplink frame is sent to the OLT.

Alternatively, as one embodiment, the receiver 624 receives the registration request that the OLT is sent, including：

The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

Alternatively, as one embodiment, the equipment class for indicating the ONU that the uplink frame is carried The field of type includes EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

Alternatively, as one embodiment, the upstream wavelength channel information also includes the type for the uplink service that the wavelength channel can be transmitted；

Wherein, the processor 621 determines the target upstream wavelength passage of the ONU according to the type of the wavelength channel from least one upstream wavelength passage, including：

According to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength is determined from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match, and the type of uplink service that can transmit of the target upstream wavelength passage and the type matching of the ONU uplink services supported.

Alternatively, as one embodiment, before receiver 624 receives the downlink frame that the OLT is sent, the receiver 624 is additionally operable to：Wavelength channel switching command or wavelength regulation order that the OLT is sent according to the uplink frame are received, to indicate that the ONU carries out upstream wavelength calibration.ONU 20, and modules in optical network unit 620 above and other operation and/or function respectively in order to realize the corresponding flow of methods 200 of the Fig. 6 into Fig. 8, for sake of simplicity, will not be repeated here.

As shown in figure 31, the embodiment of the present invention additionally provides a kind of optical network unit 630, and the optical network unit 630 includes processor 631, memory 632, bus system 633, receiver 634 and transmitter 635.Wherein, processor 631, memory 632, receiver 634 are connected with transmitter 635 by bus system 633, the memory 632 is used for store instruction, the processor 631 is used for the instruction for performing the memory 632 storage, to control receiver 634 to receive signal, and transmitter 635 is controlled to send signal.Wherein, the transmitter 635 is used for：Registration response is sent to optical line terminal OLT, the registration is responded for asking the OLT allocation identifications, and registration response carries the field for the device type for being used to indicate optical network unit ONU；The receiver 634 is used for：The OLT is received to respond really according to the registration The ONU sent when fixed ONU device type is with allowing the device type for registering equipment to match device identification；The processor 631 is used for the transmission for entering row information according to the device identification.

Alternatively, as one embodiment, the receiver 634 is additionally operable to：The registration request of OLT transmissions is received, the registration request carries the field for indicating the device type for allowing to register equipment；The processor 631 is additionally operable to：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；The transmitter 635 specifically for：When it is determined that the device type of the ONU allows the device type for registering equipment to match with this, registration response is sent to the OLT.

Alternatively, as one embodiment, the receiver 634 receives the registration request that the OLT is sent, including：

Alternatively, it is used as one embodiment, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

Alternatively, it is used as one embodiment, the receiver 634 receive the OLT according to the registration in response to determining that after the device type of the ONU and the device identification of the ONU sent when allowing the device type of registration equipment to match, the transmitter 635 is additionally operable to：Confirmation is sent to the OLT, should Confirmation is used to indicate that the ONU receives the device identification.

Alternatively, as one embodiment, receiver 634 is additionally operable to：Receive the OLT according to the registration in response to determining that the wavelength channel switching command that the sends when device type of the ONU allows the device type for registering equipment to mismatch with this, to indicate that the ONU is re-registered.ONU 30, and modules in optical network unit 630 above and other operation and/or function respectively in order to realize the corresponding flow of methods 300 of the Fig. 9 into Figure 12, for sake of simplicity, will not be repeated here.

As shown in figure 32, the embodiment of the present invention additionally provides a kind of optical line terminal 640, and the optical line terminal 640 includes processor 641, memory 642, bus system 643, receiver 644 and transmitter 645.Wherein, processor 641, memory 642, receiver 644 are connected with transmitter 645 by bus system 643, the memory 642 is used for store instruction, the processor 641 is used for the instruction for performing the memory 642 storage, to control receiver 644 to receive signal, and transmitter 645 is controlled to send signal.Wherein, the processor 641 is used for：Determine wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passage of optical line terminal OLT, and the upstream wavelength channel information includes the type of upstream wavelength passage；The transmitter 651 is used for：The wavelength channel information is sent to optical network unit ONU.

Therefore, the optical line terminal of the embodiment of the present invention, determine to include the wavelength channel information of downstream wavelength channel information and/or upstream wavelength channel information by optical line terminal, and send the wavelength channel information to optical network unit, optical network unit is enabled to know the information of downstream wavelength passage and/or upstream wavelength passage, so as to recognize the information such as the type of downstream wavelength passage and/or upstream wavelength passage and/or the type for the downlink business that can be transmitted under multiple passive optical network Coexistence Situations, thus, it is possible to correctly carry out wavelength initialization, and the interference to miscellaneous equipment can be avoided. Alternatively, as one embodiment, when the wavelength channel information includes the downstream wavelength channel information, the transmitter 645 sends the wavelength channel information to optical network unit ONU, including：Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

Alternatively, as one embodiment, the EPON operational control body PON OC Body fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields 7 that the downlink physical synchronization blocks include carry the downstream wavelength channel information.

Alternatively, as one embodiment, the receiver 644 is used for：The registration response that the ONU is sent on the upstream wavelength passage is received, the registration is responded for asking upstream wavelength to be calibrated, and registration response carries the field for the device type for being used to indicate the ONU；

Wherein, the transmitter 645 sends the wavelength channel information to optical network unit ONU, including：Just blunt responded according to the registration to the ONU sends the upstream wavelength channel information.

Alternatively, as one embodiment, the transmitter 645 is additionally operable to：Registration request is sent to the ONU, the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, the receiver 644 receives the ONU and responded on the upstream wavelength passage to the OLT registrations sent, including：The ONU is received when it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the registration response sent on the upstream wavelength passage.

Alternatively, as one embodiment, the transmitter 645 sends registration request to the ONU, including：

Being sent to the ONU includes the registration request of distribution structure Allocation structure fields, and the value of the allocation unit mark Alloc-ID fields in the distribution structure field indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate that this allows the field of the device type of registration equipment.

The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes the field for being used to indicate that this allows to register the device type of equipment.

Alternatively, it is used as one embodiment, what registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, and the PON OC Body fields and the PON id fields are used to indicate the ONU The type of the downstream wavelength passage at place, to indicate the device type of the ONU.

Alternatively, as one embodiment, before the transmitter 645 responds according to the registration and the upstream wavelength channel information is sent to the ONU, the transmitter 645 is additionally operable to：Responded according to the registration to the ONU and send wavelength channel switching command or wavelength regulation order, to indicate that the ONU carries out upstream wavelength calibration.

Alternatively, as one embodiment, the downstream wavelength channel information also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information also includes the type for the uplink service that the upstream wavelength passage can be transmitted.OLT 40, and modules in optical line terminal 640 above and other operation and/or function respectively in order to realize the corresponding flow of methods 400 of the Figure 13 into Figure 16, for sake of simplicity, will not be repeated here.

As shown in figure 33, the embodiment of the present invention additionally provides a kind of optical line terminal 650, and the optical line terminal 650 includes processor 651, memory 652, bus system 653, receiver 654 and transmitter 655.Wherein, processor 651, memory 652, receiver 654 are connected with transmitter 655 by bus system 653, the memory 652 is used for store instruction, the processor 651 is used for the instruction for performing the memory 652 storage, to control receiver 654 to receive signal, and transmitter 655 is controlled to send signal.Wherein, the receiver 654 is used for：The registration response that optical network unit ONU is sent is received, the registration is responded for asking optical line terminal OLT allocation identification, and registration response carries the field for the device type for being used to indicate the ONU；The processor 651 is used for：According to the registration in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；The transmitter 655 is used for：When it is determined that the device type of the ONU allows the device type for registering equipment to match with this, the device identification of the ONU is sent to the ONU.

Therefore, the optical line terminal of the embodiment of the present invention, receives the registration that optical network unit sends by optical line terminal and responds, and carries in the registration response word of device type for indicating optical network unit Section, optical line terminal enable according to the registration in response to determining that whether the device type of optical network unit matches with the device type for allowing to register equipment, and send device identification to optical network unit in matching, so as to enable optical line terminal to recognize the type for the equipment that request is registered under multiple passive optical network Coexistence Situations, and device identification can be sent to the optical network unit of type matching, thus, it is possible to correctly carry out facility registration, and the interference to miscellaneous equipment can be avoided.

Alternatively, as one embodiment, the transmitter 655 is additionally operable to：Registration request is sent to the ONU, the registration request is carried for indicating the shown field for allowing to register the device type of equipment；Wherein, the receiver 654 receives the registration response that optical network unit ONU is sent, including：

The ONU is received it is determined that the registration that the device type of the ONU is sent when allowing the device type for registering equipment to match with this is responded.

Alternatively, as one embodiment, the transmitter 655 sends registration request to the ONU, including：

Alternatively, as one embodiment, after the transmitter 655 sends the device identification of the ONU to the ONU, the receiver 654 is additionally operable to：The confirmation of ONU transmissions is received, the confirmation is used to indicate that the ONU receives the device identification.

Alternatively, as one embodiment, the transmitter 655 is additionally operable to：When it is determined that the device type of the ONU allows the device type for registering equipment to mismatch with this, wavelength channel switching command is sent to the ONU, to indicate that the ONU is re-registered. OLT 50, and modules in optical line terminal 650 above and other operation and/or function respectively in order to realize the corresponding flow of methods 500 of the Figure 17 into Figure 20, for sake of simplicity, will not be repeated here.

Those of ordinary skill in the art can be appreciated that, the unit and algorithm steps of each example described with reference to the embodiments described herein, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate the interchangeability of hardware and software, the composition and step of each example are generally described according to function in the above description.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.

It is apparent to those skilled in the art that, for convenience of description and succinctly, the specific work process of the system of foregoing description, device and unit may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can realize by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another sunset is foretold, and shown or discussed coupling each other or direct are closed or communication connection can be closed by indirect of some interfaces, device or unit or communication connection or electricity, and mechanical or other forms are connected.It can be for the part that unit is shown or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of scheme of the embodiment of the present invention according to the actual needs. In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit or unit is individually physically present or two or more units are integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part that technical scheme substantially contributes to prior art in other words, or all or part of the technical scheme can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory) random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

It is described above; only embodiment of the invention; but protection scope of the present invention is not limited thereto; any one skilled in the art the invention discloses technical scope in; various equivalent modifications or substitutions can be readily occurred in, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.

Claims

Claims

1st, a kind of method of EPON medium wavelength initialization, it is characterised in that including：Optical network unit ONU receives the downlink frame that optical line terminal OLT is sent, and the downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the type of the wavelength channel；

The ONU determines the target downlink wavelength channel of the ONU according to the type of the wavelength channel from least one downstream wavelength passage, wherein, the type and the device type of the ONU of the target downlink wavelength channel match.

2nd, the method according to claim 1, it is characterised in that the downlink frame is particularly for the downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message for indicating the downstream wavelength channel information.

3rd, method according to claim 2, it is characterised in that EPON operational control body PON OC Body fields or EPON the mark PON ID fields that the downlink physical synchronization blocks include are used to indicate the downstream wavelength channel information.

4th, according to the method in any one of claims 1 to 3, it is characterised in that the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；

Wherein, the ONU determines the target downlink wavelength channel of the ONU according to the type of the wavelength channel from least one downstream wavelength passage, including：

The ONU is according to the type of the wavelength channel and the type of the downlink business that can be transmitted, the target downlink wavelength channel is determined from least one described downstream wavelength passage, wherein, the type and the device type of the ONU of the target downlink wavelength channel match, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU downlink business supported.

5th, a kind of method of EPON medium wavelength initialization, it is characterised in that including：Optical network unit ONU receives the downlink frame that optical line terminal OLT is sent, and the downlink frame carries the field of the upstream wavelength channel information for indicating current wavelength passage, and the upstream wavelength channel information includes the type of the wavelength channel；

The ONU determines the target upstream wavelength passage of the ONU according to the type of the wavelength channel from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match.

6th, method according to claim 5, it is characterised in that methods described also includes： The registration request that the OLT is sent is received, the registration request carries the field for indicating the device type for allowing to register equipment；

The uplink frame for responding the registration request is sent to the OLT, the uplink frame is used for the field for carrying the device type for indicating the ONU；

Wherein, the uplink frame sent to the OLT for responding the registration request, including：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；It is determined that the ONU device type with it is described allow the device type for registering equipment match when, to the OLT transmissions uplink frame.

7th, method according to claim 6, it is characterised in that the registration request that the reception OLT is sent, including：

The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields that the OLT is sent indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

8th, method according to claim 6, it is characterised in that the registration request that the reception OLT is sent, including：

The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

9th, the method according to any one of claim 6 to 8, it is characterised in that what the uplink frame was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body

PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

10th, the method according to any one of claim 5 to 9, it is characterised in that the upstream wavelength channel information also includes the type for the uplink service that the wavelength channel can be transmitted；

Wherein, the ONU determines the target upstream wavelength passage of the ONU according to the type of the wavelength channel from least one upstream wavelength passage, including：

The ONU is according to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength passage is determined from least one described upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match, and the type of uplink service and the class of the ONU uplink services supported that the target upstream wavelength passage can be transmitted Type matches.

11st, the method according to any one of claim 6 to 10, it is characterised in that before the optical network unit ONU receives the downlink frame that optical line terminal OLT is sent, methods described also includes：Wavelength channel switching command or wavelength regulation order that the OLT is sent according to the uplink frame are received, to indicate that the ONU carries out upstream wavelength calibration.

12nd, in a kind of EPON facility registration method, it is characterised in that including：

Registration response is sent to optical line terminal OLT, the registration response is used to ask the OLT allocation identifications, and the registration response carries the field for the device type for being used to indicate optical network unit ONU；

Receive the device identification for the ONU that the OLT is sent when according to described register in response to determining that the device type of the ONU is with allowing the device type for registering equipment to match；

Enter the transmission of row information according to the device identification.

13rd, method according to claim 12, it is characterised in that methods described also includes：The registration request that the OLT is sent is received, the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, it is described to send registration response to optical line terminal OLT, including：

Determine whether the device type of the ONU matches with the device type for allowing to register equipment；It is determined that the ONU device type with it is described allow register equipment device type match when, to the OLT send it is described registration response.

14th, method according to claim 13, it is characterised in that the registration request that the reception OLT is sent, including：

The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields that the OLT is sent indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

15th, method according to claim 13, it is characterised in that the registration request that the reception OLT is sent, including：

The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

16th, the method according to any one of claim 12 to 15, it is characterised in that what the registration response was carried is used to indicate that the field of the device type of the ONU includes EPON and operates control Body PON OC Body fields processed or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

17th, the method according to any one of claim 12 to 16, it is characterized in that, after the device identification for receiving the ONU that the OLT is sent when according to described register in response to determining that the device type of the ONU is with allowing the device type for registering equipment to match, methods described also includes：Confirmation is sent to the OLT, the confirmation is used to indicate that the ONU receives the device identification.

18th, the method according to any one of claim 12 to 17, it is characterised in that methods described also includes：

Receive the OLT according to the registration in response to determining that the device type of the ONU with it is described allow the device type for registering equipment to mismatch when the wavelength channel switching command that sends or wavelength regulation order, to indicate that the ONU is re-registered.

19th, a kind of method of EPON medium wavelength initialization, it is characterised in that including：Determine wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passage of optical line terminal OLT, and the upstream wavelength channel information includes the type of upstream wavelength passage；

The wavelength channel information is sent to optical network unit ONU.

20th, method according to claim 19, it is characterised in that described to send the wavelength channel information to optical network unit ONU when the wavelength channel information includes the downstream wavelength channel information, including：

Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

21st, method according to claim 20, it is characterised in that the EPON operational control body PON OC Body fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information.

22nd, the method according to any one of claim 19 to 21, it is characterised in that methods described also includes： The registration response that the ONU is sent on the upstream wavelength passage is received, the registration response is used to ask upstream wavelength to be calibrated, and the registration response carries the field for the device type for being used to indicate the ONU；

Wherein, it is described to send the wavelength channel information to optical network unit ONU, including：The upstream wavelength channel information is sent to the ONU according to the registration response.

23rd, method according to claim 22, it is characterised in that methods described also includes：Registration request is sent to the ONU, the registration request carries the field for indicating the device type for allowing to register equipment；Volume response, including：

Receive the ONU it is determined that the ONU device type with it is described allow the device type for registering equipment match when, the registration that is sent on the upstream wavelength passage is responded.

24th, method according to claim 23, it is characterised in that described to send registration request to the ONU, including：

The value that the allocation unit mark Alloc-ID fields included in the registration request of distribution structure Allocation structure fields, the distribution structure field are sent to the ONU indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

25th, method according to claim 23, it is characterised in that described to send registration request to the ONU, including：

The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

26th, the method according to any one of claim 22 to 25, it is characterized in that, what the registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

27th, the method according to any one of claim 22 to 26, it is characterised in that responded described according to the registration to before the ONU transmissions upstream wavelength channel information, methods described also includes：

Wavelength channel switching command is sent to the ONU according to the registration response or wavelength regulation is ordered Order, to indicate that the ONU carries out upstream wavelength calibration.

28th, the method according to any one of claim 19 to 27, it is characterised in that the downstream wavelength channel information also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information also includes the type for the uplink service that the upstream wavelength passage can be transmitted.

29th, in a kind of EPON facility registration method, it is characterised in that including：

The registration response that optical network unit ONU is sent is received, the registration response is used to ask optical line terminal OLT allocation identification, and the registration response carries the field for the device type for being used to indicate the ONU；

According to the registration in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；

It is determined that the ONU device type with it is described allow the device type for registering equipment match when, to ONU transmissions ONU device identification.

30th, method according to claim 29, it is characterised in that methods described also includes：Registration request is sent to the ONU, the registration request is carried for indicating the shown field for allowing to register the device type of equipment；

Wherein, the registration response for receiving optical network unit ONU transmission, including：

Receive the ONU it is determined that the ONU device type with it is described allow register equipment device type match when send the registration response.

31st, method according to claim 30, it is characterised in that described to send registration request to the ONU, including：

The value that the allocation unit mark Alloc-ID fields included in the registration request of distribution structure Allocation structure fields, the distribution structure field are sent to the ONU indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

32nd, method according to claim 30, it is characterised in that described to send registration request to the ONU, including：

The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

33rd, the method according to any one of claim 29 to 32, it is characterized in that, what the registration response was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the PON OC Body The type of the downstream wavelength passage of field and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

34th, the method according to any one of claim 29 to 33, it is characterised in that after the device identification that the ONU is sent to the ONU, methods described also includes：

The confirmation that the ONU is sent is received, the confirmation is used to indicate that the ONU receives the device identification.

35th, the method according to any one of claim 29 to 34, it is characterised in that methods described also includes：

It is determined that the ONU device type with it is described allow the device type for registering equipment to mismatch when, wavelength channel switching command or wavelength regulation order are sent to the ONU, to indicate that the ONU is re-registered.

36th, a kind of optical network unit ONU, it is characterised in that including：

Receiving module, the downlink frame for receiving optical line terminal OLT transmission, the downlink frame carries the field of the downstream wavelength channel information for indicating current wavelength passage, and the downstream wavelength channel information includes the type of the wavelength channel；

Determining module, for the type according to the wavelength channel, determines the target downlink wavelength channel of the ONU from least one downstream wavelength passage, wherein, the type and the device type of the ONU of the target downlink wavelength channel match.

37th, optical network unit according to claim 36, characterized in that, the downlink frame that the receiving module is received is particularly for the downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message for indicating the downstream wavelength channel information.

38th, the optical network unit according to claim 37, characterized in that, EPON operational control body PON OC Body fields or EPON the mark PON id fields that the downlink physical synchronization blocks include are used to indicate the downstream wavelength channel information.

39th, the optical network unit according to any one of claim 36 to 38, it is characterised in that the downstream wavelength channel information also includes the type for the downlink business that the wavelength channel can be transmitted；Wherein, the determining module specifically for：According to the type of the wavelength channel and the type of the downlink business that can be transmitted, the target downlink wavelength channel is determined from least one described downstream wavelength passage, wherein, the type and the device type of the ONU of the target downlink wavelength channel match, and the type of downlink business that can transmit of the target downlink wavelength channel and the type matching of the ONU downlink business supported. 40th, a kind of optical network unit ONU, it is characterised in that including：

Receiving module, the downlink frame for receiving optical line terminal OLT response, the downlink frame carries the field of the upstream wavelength channel information for indicating current wavelength passage, and the upstream wavelength channel information includes the type of the wavelength channel；

Determining module, for the type according to the wavelength channel, determines the target upstream wavelength passage of the ONU from least one upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match.

41st, optical network unit according to claim 40, it is characterised in that the receiving module is additionally operable to：The registration request that the OLT is sent is received, the registration request carries the field for indicating the device type for allowing to register equipment；

The ONU also includes sending module, and for sending uplink frame to optical line terminal OLT, the uplink frame carries the field of the device type for indicating the ONU；

Wherein, the determining module is additionally operable to：Determine whether the device type of the ONU matches with the device type for allowing to register equipment；

The sending module specifically for：The determining module determine the device type of the ONU with it is described allow the device type for registering equipment match when, to the OLT transmissions uplink frame.

42nd, the optical network unit according to claim 41, it is characterised in that the receiving module specifically for：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields that the OLT is sent indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

43rd, the optical network unit according to claim 41, it is characterised in that the receiving module specifically for：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

44th, the optical network unit according to any one of claim 40 to 43, it is characterized in that, what the uplink frame that the sending module is sent was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON ID fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

45th, the optical network unit according to any one of claim 40 to 44, it is characterised in that The upstream wavelength channel information that the receiving module is received also includes the type for the uplink service that the wavelength channel can be transmitted；

Wherein, the determining module specifically for：According to the type of the wavelength channel and the type of the uplink service that can be transmitted, the target upstream wavelength passage is determined from least one described upstream wavelength passage, wherein, the type and the device type of the ONU of the target upstream wavelength passage match, and the type of uplink service that can transmit of the target upstream wavelength passage and the type matching of the ONU uplink services supported.

46th, the optical network unit according to any one of claim 41 to 45, it is characterised in that the receiving module is additionally operable to：Before the downlink frame that the OLT is sent is received, wavelength channel switching command or wavelength regulation order that the OLT is sent according to the uplink frame are received, to indicate that the ONU carries out upstream wavelength calibration.

47th, a kind of optical network unit ONU, it is characterised in that including：

Sending module, for sending registration response to optical line terminal OLT, the registration response is used to ask the OLT allocation identifications, and the registration response carries the field for the device type for being used to indicate the ONU；

Receiving module, the device identification for receiving the ONU that the OLT is sent when the registration sent according to the sending module responds, determines the device type of the ONU with allowing the device type for registering equipment to match；

The transmission of row information is entered in processing module, the device identification for being received according to the receiving module.

48th, optical network unit according to claim 47, it is characterised in that the receiving module is additionally operable to：The registration request that the OLT is sent is received, the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, the optical network unit also includes determining module, for determining whether the device type of the ONU matches with the device type for allowing to register equipment；

The sending module specifically for：The determining module determine the device type of the ONU with it is described allow the device type for registering equipment match when, send the registration response to the OLT.

49th, optical network unit according to claim 48, it is characterised in that the receiving module specifically for：The value for receiving the allocation unit included in the registration request of distribution structure Allocation structure fields, the distribution structure field the mark Alloc-ID fields that the OLT is sent indicates the device type for allowing to register equipment；Or the distribution structure field is described for indicating including value Allow the field for registering the device type of equipment.

50th, optical network unit according to claim 48, it is characterised in that the receiving module specifically for：The registration request that the OLT is sent by physical layer operation and maintenance PLOAM message is received, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

51st, the optical network unit according to any one of claim 47 to 50, it is characterized in that, what the registration response that the sending module is sent was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

52nd, the optical network unit according to any one of claim 47 to 51, it is characterised in that the sending module is additionally operable to：After the device identification that the receiving module receives the ONU, confirmation is sent to the OLT, the confirmation is used to indicate that the ONU receives the device identification.

53rd, the optical network unit according to any one of claim 47 to 52, it is characterised in that the receiving module is additionally operable to：Receive the OLT according to the registration in response to determining that the device type of the ONU with it is described allow the device type for registering equipment to mismatch when the wavelength channel switching command that sends or wavelength regulation order, to indicate that the ONU is re-registered.

54th, a kind of optical line terminal OLT, it is characterised in that including：

Determining module, for determining wavelength channel information, the wavelength channel information includes downstream wavelength channel information and/or upstream wavelength channel information, wherein, the downstream wavelength channel information includes the type of the currently employed downstream wavelength passages of the OLT, and the upstream wavelength channel information includes the type of upstream wavelength passage；

Sending module, for sending the wavelength channel information that the determining module is determined to optical network unit ONU.

55th, optical line terminal according to claim 54, it is characterised in that the determining module determine the wavelength channel information include the downstream wavelength channel information when, the sending module specifically for：Downlink physical synchronization blocks PSBd or template physical layer operation and maintenance Profile PLOAM message are sent to the ONU, wherein, the downlink physical synchronization blocks carry the downstream wavelength channel information, and the Profile PLOAM message includes the downstream wavelength channel information.

56th, optical line terminal according to claim 54, it is characterised in that the downlink physical The EPON operational control body PON OC Body fields that synchronization blocks include carry the downstream wavelength channel information；Or the EPON mark PON id fields that the downlink physical synchronization blocks include carry the downstream wavelength channel information.

57th, the optical line terminal according to any one of claim 54 to 56, it is characterized in that, the optical line terminal also includes receiving module, for receiving the registration response that the ONU is sent on the upstream wavelength passage, the registration response is used to ask upstream wavelength to be calibrated, and the registration response carries the field for the device type for being used to indicate the ONU；

Wherein, the sending module specifically for：The upstream wavelength channel information is sent to the ONU according to the registration response.

58th, optical line terminal according to claim 57, it is characterised in that the sending module is additionally operable to：Registration request is sent to the ONU, the registration request carries the field for indicating the device type for allowing to register equipment；

Wherein, the receiving module specifically for：Receive the ONU it is determined that the ONU device type with it is described allow the device type for registering equipment match when, the registration that is sent on the upstream wavelength passage is responded.

59th, optical line terminal according to claim 58, it is characterised in that the sending module specifically for：The value that the allocation unit mark Alloc-ID fields included in the registration request of distribution structure Allocation structure fields, the distribution structure field are sent to the ONU indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

60th, optical line terminal according to claim 58, it is characterised in that the sending module specifically for：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

61st, the optical line terminal according to any one of claim 57 to 60, it is characterized in that, what the registration response that the receiving module is received was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU.

62nd, the optical line terminal according to any one of claim 57 to 61, it is characterised in that the sending module is additionally operable to：Before the upstream wavelength channel information is sent to the ONU according to the registration response, wavelength channel switching command or ripple are sent to the ONU according to the registration response Long regulating command, to indicate that the ONU carries out upstream wavelength calibration.

63rd, the optical line terminal according to any one of claim 54 to 62, it is characterised in that the downstream wavelength channel information that the determining module is determined also includes the type for the downlink business that the downstream wavelength passage can be transmitted；The upstream wavelength channel information that the determining module is determined also includes the type for the uplink service that the upstream wavelength passage can be transmitted.

64th, a kind of optical line terminal OLT, it is characterised in that including：

Receiving module, the registration response for receiving optical network unit ONU transmission, the registration response is used to ask the OLT allocation identifications, and the registration response carries the field for the device type for being used to indicate the ONU；

Determining module, for the registration that is received according to the receiving module in response to determining that whether the device type of the ONU matches with the device type for allowing to register equipment；

Sending module, for determined in the determining module device type of the ONU with it is described allow the device type for registering equipment match when, to ONU transmissions ONU device identification.

65th, optical line terminal according to claim 64, it is characterised in that the sending module is additionally operable to：Registration request is sent to the ONU, the registration request is carried for indicating the shown field for allowing to register the device type of equipment；

Wherein, the receiving module specifically for：Receive the ONU it is determined that the ONU device type with it is described allow register equipment device type match when send the registration response.

66th, optical line terminal according to claim 65, it is characterised in that the sending module specifically for：The value that the allocation unit mark Alloc-ID fields included in the registration request of distribution structure Allocation structure fields, the distribution structure field are sent to the ONU indicates the device type for allowing to register equipment；Or the distribution structure field includes value and is used to indicate the field for allowing to register the device type of equipment.

67th, optical line terminal according to claim 65, it is characterised in that the sending module specifically for：The registration request is sent to the ONU by physical layer operation and maintenance PLOAM message, the PLOAM message includes being used to indicate the field for allowing to register the device type of equipment.

68th, the optical line terminal according to any one of claim 64 to 67, it is characterized in that, what the registration response that the receiving module is received was carried is used to indicate that the field of the device type of the ONU to include EPON operational control body PON OC Body fields or EPON mark PON id fields, the type of the downstream wavelength passage of the PON OC Body fields and the PON id fields where for indicating the ONU, to indicate the device type of the ONU. 69th, the optical line terminal according to any one of claim 64 to 68, it is characterised in that the receiving module is additionally operable to：After the device identification that the sending module sends the ONU to the ONU, the confirmation that the ONU is sent is received, the confirmation is used to indicate that the ONU receives the device identification.

70th, the optical line terminal according to any one of claim 64 to 69, it is characterised in that the sending module is additionally operable to：The determining module determine the device type of the ONU with it is described allow the device type for registering equipment to mismatch when, wavelength channel switching command or wavelength regulation order are sent to the ONU, to indicate that the ONU is re-registered.