CN103220588B - A kind of register method of optical network unit and system - Google Patents
A kind of register method of optical network unit and system Download PDFInfo
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- CN103220588B CN103220588B CN201210016273.6A CN201210016273A CN103220588B CN 103220588 B CN103220588 B CN 103220588B CN 201210016273 A CN201210016273 A CN 201210016273A CN 103220588 B CN103220588 B CN 103220588B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
- H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
- H04J14/0247—Sharing one wavelength for at least a group of ONUs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
- H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
- H04J14/0252—Sharing one wavelength for at least a group of ONUs, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
- H04J14/0282—WDM tree architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides register method and the system of a kind of optical network unit (ONU), described method comprises: ONU carries out channel information on any subchannel with optical line terminal (OLT) mutual, obtains the subchannel distributing to self; ONU carries out registering and service communication on the described subchannel distributing to self.The present invention carries out channel information by ONU on any subchannel with OLT mutual, can when next-generation passive optical network exist multiple SP share, ONU to be registered on correct OLT and to complete the problem of subchannel assignment.
Description
Technical field
The present invention relates to optical communication field, particularly relate to a kind of register method and system of optical network unit (OpticalNetworkUnit, ONU).
Background technology
Current Technology of Light Access Network is all based on time-multiplexed passive optical network technique (TimeDivisionMultiplex-PassiveOpticalNetwork, TDM-PON).Except the Ethernet passive optical network (EPON) of actual large scale deployment and gigabit passive optical network (GPON) two kinds of EPONs, support that the next-generation passive optical network 10G-EPON standard IEEE 802.3av of higher rate completes in September, 2009.The relevant criterion ITU-TG.987.X series of XG-PON also completes in June, 2010.Along with the EPON product introduction commercialization stage of these two kinds of 10G speed, then the standard NG-PON2 of the Next Generation Access also Engage of standard preparatory stage.
The PON demand fulfillment of future generation the faced the future Access Network that more high bandwidth, more longer transmission distance, multi-service fusion, more equality are open.In order to realize higher bandwidth, PON system of future generation probably introduces wavelength division multiplexing (WavelengthDivisionMultiplexing, or OFDM (OrthogonalFrequencyDivisionMultiplexing WDM), the technology such as OFDM), also likely these two kinds of technology are combined with existing TDM technology, form access net system more flexibly.In addition, Next Generation Access also will be considered to support that multiple Internet Service Provider (SP) shares an Optical Distribution Network (ODN).Like this concerning SP, the existing network facilities can be made full use of, for user, also can select different service providers easily.
For this new application scenarios that above-mentioned Next Generation Access proposes, how user selects Internet Service Provider, and how ONU is successfully completed registration is a problem demanding prompt solution.
Summary of the invention
In view of this, main purpose of the present invention is the register method and the system that provide a kind of ONU, can solve ONU and there is at next-generation passive optical network the registration problem that multiple SP shares situation.
For achieving the above object, technical scheme of the present invention is achieved in that
A register method for optical network unit ONU, described method comprises:
ONU carries out channel information on any subchannel with optical line terminal OLT mutual, obtains the subchannel distributing to self;
ONU carries out registering and service communication on the described subchannel distributing to self.
Wherein, described ONU carries out channel information on any subchannel with OLT mutual, obtains the subchannel distributing to self and is:
ONU and at least one OLT carries out the mutual of OLT identification information;
When the OLT identification information that the identification information of described OLT is pre-configured with described ONU is consistent, the authentication information of self and bandwidth requirement information are reported described OLT by described ONU;
After the authentication of described ONU is passed through, described OLT is that described ONU distributes subchannel according to the bandwidth requirement information received.
Wherein, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
Described ONU receives the ONU discovery message that described OLT sends, and described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, the subchannel that described OLT serves is labeled as inapplicable passage by described ONU, and adjust to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message.
Wherein, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
Described ONU receives the ONU discovery message that described OLT sends, to the OLT identification information that described OLT reports self pre-configured;
After described OLT receives the pre-configured OLT identification information of described ONU, judge that whether the pre-configured OLT identification information of self identification information and described ONU is consistent;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described OLT to described ONU issue include self serve the refusal registration message of sub-channel information;
The subchannel that described OLT serves is labeled as inapplicable passage after receiving refusal registration message by described ONU, and adjusts to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continues to intercept ONU and finds message.
Wherein, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
Described ONU receives the ONU discovery message that described OLT sends, and described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared.
Further, when the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described method also comprises:
The sub-channel information that described ONU is served separately according to all OLT comprised in the ONU discovery message received, adjusts to any one subchannel that self pre-configured OLT serves, continues to intercept ONU and find message by reception subchannel;
Described ONU listens to ONU and finds message, finds the discovery window information in message according to described ONU, is finding window sends self authentication information and bandwidth requirement information to described OLT.
Wherein, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
The ONU that described ONU receives described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
After described OLT receives the pre-configured OLT identification information of described ONU, judge that whether the pre-configured OLT identification information of self identification information and described ONU is consistent.
Further, when the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described method also comprises:
The pre-configured OLT identification information that described OLT reports according to ONU, the OLT pre-configured with described ONU carries out communicating or being communicated by the OLT that third party is pre-configured with described ONU, determines the sub-channel information that described ONU is applicable to;
Subchannel adjustment information is sent to described ONU by the current subchannel of intercepting of described ONU by described OLT;
Reception subchannel is adjusted to described applicable subchannel according to the sub-channel information be applicable in the subchannel adjustment information received and is intercepted ONU discovery message by described ONU.
An Accreditation System of ONU, described system comprises: ONU and multiple OLT; Wherein,
Described ONU, mutual for carrying out channel information on any subchannel with OLT, obtain the subchannel distributing to self; And carry out registering and service communication on the described subchannel distributing to self.
Wherein, described ONU, specifically for carrying out the mutual of OLT identification information with at least one OLT, when the OLT identification information that the information that described OLT identifies and self are pre-configured is consistent, reports the authentication information of self and bandwidth requirement information;
Described OLT, for after the authentication of described ONU is passed through, is that described ONU distributes subchannel according to the bandwidth requirement information received.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
Described ONU, also for when the identification information of described OLT and self pre-configured OLT identification information inconsistent time, the subchannel that described OLT serves is labeled as inapplicable passage, and adjust to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, to the OLT identification information that described OLT reports self pre-configured; After receiving refusal registration message, the subchannel that described OLT serves is labeled as inapplicable passage, and adjusts to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message;
Described OLT, after receiving the pre-configured OLT identification information of described ONU, judges that whether the pre-configured OLT identification information of self identification information and described ONU is consistent; When inconsistent, to described ONU issue include self serve the refusal registration message of sub-channel information.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared.
Further, described ONU, also for the identification information of described OLT and self pre-configured OLT identification information inconsistent time, the sub-channel information served separately according to all OLT comprised in the ONU discovery message received, reception subchannel is adjusted to any one subchannel that self pre-configured OLT serves, continue to intercept ONU and find message; Finding message when listening to ONU, finding the discovery window information in message according to described ONU, finding window sends self authentication information and bandwidth requirement information to described OLT.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When the ONU receiving described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
Described OLT, specifically for after receiving the pre-configured OLT identification information of described ONU, judges that whether the pre-configured OLT identification information of self identification information and described ONU is consistent.
Further, described OLT, also for the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, according to the pre-configured OLT identification information that ONU reports, the OLT pre-configured with described ONU carries out communicating or being communicated by the OLT that third party is pre-configured with described ONU, determines the sub-channel information that described ONU is applicable to; And subchannel adjustment information is sent to described ONU by the current subchannel of intercepting of described ONU;
Described ONU, also intercepts ONU discovery message for reception subchannel being adjusted to described applicable subchannel according to the sub-channel information be applicable in the subchannel adjustment information received.
The present invention carries out channel information mutual with OLT by ONU on any subchannel, can when next-generation passive optical network exist multiple SP share, ONU to be registered on correct OLT and to complete the problem of subchannel assignment.
Accompanying drawing explanation
Fig. 1 is the realization flow schematic diagram of the register method of ONU of the present invention;
Fig. 2 is the realization flow schematic diagram of the embodiment one of the register method of ONU of the present invention;
Fig. 3 is the realization flow schematic diagram of the embodiment two of the register method of ONU of the present invention;
Fig. 4 is the realization flow schematic diagram of the embodiment three of the register method of ONU of the present invention;
Fig. 5 is the realization flow schematic diagram of the embodiment four of the register method of ONU of the present invention;
Fig. 6 is the structural representation of the Accreditation System of ONU of the present invention;
Fig. 7 is the WDM-PON system schematic of the register method applying ONU of the present invention;
Fig. 8 is the WDM-TDM-PON system schematic of the register method applying ONU of the present invention;
Fig. 9 is the OFDM-PON system schematic of the register method applying ONU of the present invention;
Figure 10 is the OFDM-TDM-PON system schematic of the register method applying ONU of the present invention;
Figure 11 is the WDM-OFDM-PON system schematic of the register method applying ONU of the present invention;
Figure 12 is the WDM-OFDM-TDM-PON system schematic of the register method applying ONU of the present invention.
Embodiment
Along with the increase of bandwidth demand, Next Generation Access system will comprise multiple units subchannel (being hereinafter subchannel), here, subchannel can be specifically wavelength subchannel (WDM mode), also can be the subchannel of carrier subsets passage (OFDM mode) or other types.Each subchannel can further include secondary subchannel (such as TDM, OFDM etc.).Here, application scenarios is that an access net system comprises one or more optical line terminal (OpticalLineTerminal, OLT), and each OLT terminal comprises again one or more subchannel; May be there is the situation that multiple SP shares a network in next-generation passive optical network, here, suppose that the corresponding one or more OLT of each SP.
Basic thought of the present invention is: ONU carries out channel information on any subchannel with OLT mutual, obtains the subchannel distributing to self; ONU carries out registering and service communication on the described subchannel distributing to self.
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 shows the realization flow of the register method of ONU of the present invention, and as shown in Figure 1, described method comprises the steps:
Step 101, ONU carries out channel information on any subchannel with OLT mutual, obtains the subchannel distributing to self;
In this step, ONU carries out channel information on any subchannel with OLT mutual, obtains the subchannel distributing to self and is: ONU and at least one OLT carries out the mutual of OLT identification information; When the OLT identification information that the identification information of described OLT is pre-configured with described ONU is consistent, the authentication information of self and bandwidth requirement information are reported described OLT by described ONU; After the authentication of described ONU is passed through, described OLT is that described ONU distributes subchannel according to the bandwidth requirement information received.Preferably, when described ONU carry out with OLT on any subchannel channel information mutual time, unexpected power down, can also proceed channel information at the subchannel at the front place of power down and described OLT after restarting mutual.
Wherein, described when ONU self have judge OLT identification information whether consistent function time, described ONU and at least one OLT carries out being specially alternately of OLT identification information:
ONU intercepts any one subchannel of any one OLT at random ONU when access network finds message; Here, the ONU that described OLT sends find message comprise self identification information and serve sub-channel information;
The ONU that described ONU receives described OLT finds message, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, the subchannel that described OLT serves is labeled as inapplicable passage by described ONU, and adjust to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message.
When described OLT can judge that whether OLT identification information is consistent, described ONU and at least one OLT carries out can also being specially alternately of OLT identification information:
ONU intercepts any one subchannel of any one OLT at random ONU when access network finds message; Here, the ONU that described OLT sends find message comprise self identification information and serve sub-channel information;
The ONU that described ONU receives described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
After described OLT receives the pre-configured OLT identification information of described ONU, judge that whether the pre-configured OLT identification information of self identification information and described ONU is consistent;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described OLT to described ONU issue include self serve the refusal registration message of sub-channel information;
The subchannel that described OLT serves is labeled as inapplicable passage after receiving refusal registration message by described ONU, and adjusts to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continues to intercept ONU and finds message.Or,
When ONU self have judge OLT identification information whether consistent function time, described ONU and at least one OLT carries out being specially alternately of OLT identification information:
ONU intercepts any one subchannel of any one OLT at random ONU when access network finds message; Here, the ONU that described OLT sends finds that message comprises self identification information and served the separately sub-channel information of all OLT; Wherein, the sub-channel information that described all OLT are served separately can be provided by third party or public side;
The ONU that described ONU receives described OLT finds message, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, the sub-channel information that described ONU is served separately according to all OLT comprised in the ONU discovery message received, reception subchannel is adjusted to any one subchannel that self pre-configured OLT serves, continue to intercept ONU and find message; Described ONU listens to ONU and finds message, finds the discovery window information in message according to described ONU, is finding window sends self authentication information and bandwidth requirement information to described OLT.
When described OLT can judge that whether OLT identification information is consistent, described ONU and at least one OLT carries out can also being specially alternately of OLT identification information:
ONU intercepts any one subchannel of any one OLT at random ONU when access network finds message;
The ONU that described ONU receives described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
After described OLT receives the pre-configured OLT identification information of described ONU, judge that whether the pre-configured OLT identification information of self identification information and described ONU is consistent;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, the pre-configured OLT identification information that described OLT reports according to ONU, the OLT pre-configured with described ONU carries out communicating or being communicated by the OLT that third party is pre-configured with described ONU, determines the sub-channel information that described ONU is applicable to;
Subchannel adjustment information is sent to described ONU by the current subchannel of intercepting of described ONU by described OLT; Reception subchannel is adjusted to described applicable subchannel according to the sub-channel information be applicable in the subchannel adjustment information received and is intercepted ONU discovery message by described ONU.
Step 102, ONU carries out registering and service communication on the described subchannel distributing to self.
Fig. 2 shows the realization flow of the embodiment one of the register method of ONU of the present invention, and as shown in Figure 2, described embodiment one comprises the steps:
Step 201, each OLT regularly sends ONU and finds message on all subchannels of own services, and provides one to find window for ONU;
Particularly, each OLT according to preset cycle regularly send with self identification information and institute serve sub-channel information ONU discovery message.
Step 202, described ONU is when initial access or re-accessing network, and the ONU intercepting a certain subchannel at random finds message;
Wherein, described ONU is provided with identification information, self the authentication information and bandwidth requirement information etc. of a certain OLT in advance.
Step 203, the ONU that ONU receives OLT finds message, the identification information of the current OLT received and the OLT identification information that self configures is compared;
In this step, the identification information of the current OLT received is the OLT identification information in the ONU discovery message received.
Step 204, ONU, according to comparison result, judges whether self is subordinated to current OLT, if not, then performs step 205, if so, then performs step 206;
Particularly, in this step, when comparison result is consistent, then self be subordinated to current OLT, otherwise then self is not subordinated to current OLT.
Step 205, ONU is according to the sub-channel information that current OLT serves received, be inapplicable passage by described sub-channel identification, and any one subchannel adjusted to by the reception subchannel of self outside subchannel that current OLT serves find message to intercept ONU, performs step 203.
Step 206, ONU sends up login request message by current subchannel on discovery window, reports authentication information and bandwidth requirement information to current OLT;
Step 207, after OLT receives described login request message, confirms subscriber identity information and bandwidth requirement information;
Step 208, OLT judges whether the authentication of ONU is passed through, if do not pass through, performs step 209, if pass through, performs step 210;
Step 209, OLT sends ONU by the subchannel that described ONU intercepts and finds message, and refuse its access request, current handling process terminates;
Step 210, OLT, according to the bandwidth requirement information received, judges whether the current subchannel of described ONU is the applicable subchannel meeting ONU bandwidth demand, if not, then perform step 211, if so, perform step 212;
Step 211, OLT sends ONU by the current subchannel of ONU and finds message, notifies that described ONU adjusts to applicable subchannel;
Here, described ONU can be adjusted on the secondary subchannel of current subchannel.
Step 212, the subchannel that OLT distributes at described ONU sends ONU and finds message, inform ONUID information and the bandwidth authorization message of described its correspondence of ONU, simultaneously for it provides a upstream time window, and finds that message informs ONU by ONU;
Step 213, after ONU receives ONUID information and bandwidth authorization message, sends registration confirmation at upstream time window to described OLT;
Step 214, after ONU has registered, namely can start normal traffic communication.
Fig. 3 shows the realization flow of the embodiment two of the register method of ONU of the present invention, and as shown in Figure 3, illustrated embodiment two comprises the steps:
Step 301, each OLT regularly sends ONU and finds message on all subchannels of own services, and provides one to find window for ONU;
Particularly, each OLT according to preset cycle regularly send with self identification information and institute serve sub-channel information ONU discovery message.
Step 302, described ONU is when initial access or re-accessing network, and the ONU intercepting a certain subchannel at random finds message;
Wherein, described ONU is provided with identification information, self the authentication information and bandwidth requirement information etc. of a certain OLT in advance.
Step 303, the ONU that ONU receives OLT finds message, sends up login request message, the OLT identification information reporting self to configure to current OLT and bandwidth requirement information by current subchannel on discovery window;
Step 304, the OLT identification information that OLT reports according to ONU, judges whether described ONU is subordinated to self, if not, then performs step 305, if so, then performs step 307;
Particularly, in this step, when the identification information of OLT identification information and OLT that ONU reports self is consistent, then described ONU is subordinated to self, otherwise, be not then subordinated to self.
Step 305, OLT by ONU current place passage to described ONU issue comprise self serve the refusal registration message of subchannel;
Step 306, ONU is according to sub-channel information that current OLT serves in the refuse information received, be inapplicable passage by these sub-channel identification, and any one subchannel adjusted to by the reception subchannel of self outside subchannel that current OLT serves finds message to intercept ONU, perform step 303.
Step 307, OLT sends registration by current the intercepted passage of ONU to described ONU and finds message, and provides one to find window;
Step 308, ONU sends up login request message by current subchannel on discovery window, reports authentication information and bandwidth requirement information to current OLT;
Step 309, after OLT receives described login request message, confirms subscriber identity information and bandwidth requirement information;
Step 310, OLT judges whether the authentication of ONU is passed through, if do not pass through, performs step 311, if pass through, performs step 312;
Step 311, OLT sends ONU by the subchannel that described ONU intercepts and finds message, and refuse its access request, current handling process terminates;
Step 312, OLT, according to the bandwidth requirement information received, judges whether the current subchannel of described ONU is the applicable subchannel meeting ONU bandwidth demand, if not, then perform step 313, if so, perform step 314;
Step 313, OLT sends ONU by the current subchannel of ONU and finds message, notifies that described ONU adjusts to applicable subchannel;
Here, described ONU can be adjusted on the secondary subchannel of current subchannel.
Step 314, the subchannel that OLT distributes at described ONU sends ONU and finds message, inform ONUID information and the bandwidth authorization message of described its correspondence of ONU, simultaneously for it provides a upstream time window, and finds that message informs ONU by ONU;
Step 315, after ONU receives ONUID information and bandwidth authorization message, sends registration confirmation at upstream time window to described OLT;
Step 315, after ONU has registered, namely can start normal traffic communication.
Fig. 4 shows the realization flow of the embodiment three of the register method of ONU of the present invention, and as shown in Figure 4, described embodiment three comprises the steps:
Step 401, each OLT regularly sends ONU and finds message on all subchannels of own services, and provides one to find window for ONU;
Particularly, each OLT finds message according to the ONU that the cycle of presetting regularly sends with self identification information and served the separately sub-channel information of all OLT; Wherein, the sub-channel information that described all OLT are served separately can be provided by third party or public side.
Step 402, described ONU is when initial access or re-accessing network, and the ONU intercepting a certain subchannel at random finds message;
Wherein, described ONU is provided with identification information, self the authentication information and bandwidth requirement information etc. of a certain OLT in advance.
Step 403, the ONU that ONU receives OLT finds message, the identification information of the current OLT received and the OLT identification information that self configures is compared;
In this step, the identification information of described current OLT is the OLT identification information in the ONU discovery message received.
Step 404, ONU, according to comparison result, judges whether self is subordinated to current OLT, if not, then performs step 405, if so, then performs step 406;
Particularly, in this step, when comparison result is consistent, then self be subordinated to current OLT, otherwise then self is not subordinated to current OLT.
Step 405, the sub-channel information that all OLT that ONU finds in message according to the described ONU received are served separately, adjusts to the reception subchannel of self on arbitrary subchannel that affiliated OLT serves and finds message to intercept ONU, perform step 406.
Step 406, ONU finds the discovery window information in message by the ONU listened to, discovery window sends up login request message, reports authentication information and bandwidth requirement information to current OLT;
Step 407, after OLT receives described login request message, confirms subscriber identity information and bandwidth requirement information;
Step 408, OLT judges whether the authentication of ONU is passed through, if do not pass through, performs step 409, if pass through, performs step 410;
Step 409, OLT sends ONU by the subchannel that described ONU intercepts and finds message, and refuse its access request, current handling process terminates;
Step 410, OLT, according to the bandwidth requirement information received, judges whether the current subchannel of described ONU is the applicable subchannel meeting ONU bandwidth demand, if not, then perform step 411, if so, perform step 412;
Step 411, OLT sends ONU by the current subchannel of ONU and finds message, notifies that described ONU adjusts to applicable subchannel;
Here, described ONU can be adjusted on the secondary subchannel of current subchannel.
Step 412, the subchannel that OLT distributes at described ONU sends ONU and finds message, inform ONUID information and the bandwidth authorization message of described its correspondence of ONU, simultaneously for it provides a upstream time window, and finds that message informs ONU by ONU;
Step 413, after ONU receives ONUID information and bandwidth authorization message, sends registration confirmation at upstream time window to described OLT;
Step 414, after ONU has registered, namely can start normal traffic communication.
Fig. 5 shows the realization flow of the embodiment four of the register method of ONU of the present invention, and as shown in Figure 5, described embodiment four comprises the steps:
Step 501, each OLT regularly sends ONU and finds message on all subchannels of own services, and provides one to find window for ONU;
Particularly, each OLT regularly sends according to the cycle of presetting and finds message with self identification information and the ONU of the sub-channel information of self serving.
Step 502, described ONU is when initial access or re-accessing network, and the ONU intercepting a certain subchannel at random finds message;
Wherein, described ONU is provided with identification information, self the authentication information and bandwidth requirement information etc. of a certain OLT in advance.
Step 503, the ONU that ONU receives OLT finds message, sends up login request message, the OLT identification information reporting self to configure to current OLT and bandwidth requirement information by current subchannel on discovery window;
Step 504, OLT receiving package contains the login request message of the OLT identification information of described ONU self configuration;
Step 505, the OLT identification information that OLT reports according to ONU, judges whether described ONU is subordinated to self, if not, then performs step 506, if so, then performs step 508;
Particularly, in this step, when the identification information of OLT identification information and OLT that ONU reports self is consistent, then described ONU is subordinated to self, otherwise, be not then subordinated to self.
Step 506, the OLT identification information that OLT reports according to described ONU, directly communicates with the OLT belonging to described ONU, determines the sub-channel information be applicable to of described ONU; Or,
OLT communicates with third party, is communicated with the OLT belonging to described ONU by third party, determines the sub-channel information be applicable to of described ONU.
Step 507, subchannel adjustment information is given described ONU by the subchannel issuing message that ONU is current intercepted by OLT;
Step 508, OLT, according to the bandwidth requirement information of ONU, judges whether current subchannel is applicable subchannel; If not, then perform step 509, if so, perform step 511;
Step 509, OLT sends subchannel adjustment message by current subchannel, and notice ONU adjusts to described applicable subchannel;
Step 510, ONU, according to the subchannel adjustment information received, adjusts to the subchannel of specifying and being applicable to by receiving subchannel;
Step 511, OLT sends gating message distributing on the subchannel that described ONU is applicable to, and provides a upstream time window;
Step 512, ONU intercepts ONU and finds message on the subchannel be applicable to be assigned with;
Step 513, ONU receives the gating message that OLT sends, and sends up login request message, report authentication information and bandwidth requirement information to current OLT by current subchannel on discovery window;
Step 514, after OLT receives described login request message, confirms subscriber identity information and bandwidth requirement information;
Step 515, OLT judges whether the authentication of ONU is passed through, if do not pass through, performs step 516, if pass through, performs step 517;
Step 516, OLT sends ONU by the subchannel that described ONU intercepts and finds message, and refuse its access request, current handling process terminates;
Step 517, the subchannel that OLT distributes at described ONU sends ONU and finds message, inform ONUID information and the bandwidth authorization message of described its correspondence of ONU, simultaneously for it provides a upstream time window, and finds that message informs ONU by ONU;
Step 518, after ONU receives ONUID information and bandwidth authorization message, sends registration confirmation at upstream time window to described OLT;
Step 519, after ONU has registered, namely can start normal traffic communication.
Fig. 6 shows the Accreditation System of ONU of the present invention, and described system comprises: ONU many OLT; , with the signal that OLT1 ~ OLTm carries out in Fig. 6, wherein,
Described ONU, mutual for carrying out channel information on any subchannel with OLT, obtain the subchannel distributing to self; And carry out registering and service communication on the described subchannel distributing to self.
Further, described ONU, specifically for carrying out the mutual of OLT identification information with at least one OLT, when the OLT identification information that the information that described OLT identifies and self are pre-configured is consistent, reports the authentication information of self and bandwidth requirement information;
Described OLT, for after the authentication of described ONU is passed through, is that described ONU distributes subchannel according to the bandwidth requirement information received.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
Described ONU, also for when the identification information of described OLT and self pre-configured OLT identification information inconsistent time, the subchannel that described OLT serves is labeled as inapplicable passage, and adjust to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, to the OLT identification information that described OLT reports self pre-configured; After receiving refusal registration message, the subchannel that described OLT serves is labeled as inapplicable passage, and adjusts to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message;
Described OLT, after receiving the pre-configured OLT identification information of described ONU, judges that whether the pre-configured OLT identification information of self identification information and described ONU is consistent; When inconsistent, to described ONU issue include self serve the refusal registration message of sub-channel information.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared.
Further, described ONU, also for the identification information of described OLT and self pre-configured OLT identification information inconsistent time, the sub-channel information served separately according to all OLT comprised in the ONU discovery message received, reception subchannel is adjusted to any one subchannel that self pre-configured OLT serves, continue to intercept ONU and find message; Finding message when listening to ONU, finding the discovery window information in message according to described ONU, finding window sends self authentication information and bandwidth requirement information to described OLT.
Wherein, described ONU, the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When the ONU receiving described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
Described OLT, specifically for after receiving the pre-configured OLT identification information of described ONU, judges that whether the pre-configured OLT identification information of self identification information and described ONU is consistent.
Further, described OLT, also for the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, according to the pre-configured OLT identification information that ONU reports, the OLT pre-configured with described ONU carries out communicating or being communicated by the OLT that third party is pre-configured with described ONU, determines the sub-channel information that described ONU is applicable to; And subchannel adjustment information is sent to described ONU by the current subchannel of intercepting of described ONU;
Described ONU, also intercepts ONU discovery message for reception subchannel being adjusted to described applicable subchannel according to the sub-channel information be applicable in the subchannel adjustment information received.
Fig. 7 shows the WDM-PON system of the register method applying ONU of the present invention, and as shown in Figure 7, described system is WDM-PON system, comprises n wavelength subchannel, and each subchannel takies a pair up-downgoing wavelength, a corresponding user.Same ODN network is coexisted in by the mode of wavelength division multiplexing between different wavelength subchannels.This system allows one or more OLT to use simultaneously, and each OLT takies one or more wavelength subchannel.ODN network is single-stage or multistage passive optical splitters type, can broadcast the downlink optical signal of each wavelength to all ONU.ONU selects corresponding wavelength subchannel by inner tunable receiver; The light of respective wavelength subchannel is launched by the tunable laser of inside.
Fig. 8 shows the WDM-TDM-PON system of the register method applying ONU of the present invention, as shown in Figure 8, described system is the PON system of WDM-TDM, comprise n wavelength subchannel, each wavelength subchannel takies a pair up-downgoing wavelength, corresponding one group of user, this group user shares a pair up-downgoing wavelength by time-multiplexed mode.Coexist in same ODN network by the mode of wavelength division multiplexing between different wavelength subchannels, this system allows one or more OLT to use simultaneously, and each OLT takies one or more wavelength subchannel.ODN network is single-stage or multistage passive optical splitters type, can broadcast the downlink optical signal of each wavelength to all ONU.ONU can select corresponding wavelength subchannel by inner tunable receiver.The light of respective wavelength subchannel is launched by the tunable laser of inside.
Fig. 9 shows the OFDM-PON system of the register method applying ONU of the present invention, and as shown in Figure 9, described system is OFDM-PON system, and comprise n sub-carrier subchannels, each subchannel takies a pair up-downgoing subcarrier, a corresponding user.Same ODN network is coexisted in by the mode of OFDM between different carrier subsets passages.This system allows one or more OLT to use simultaneously, and each OLT takies one or more carrier subsets passage.ODN network is single-stage or multistage passive optical splitters type, can broadcast each downlink sub-carrier light signal to all ONU.ONU demodulates corresponding downlink sub-carrier sub-channel signal by inner orthogonal frequency de-multiplexing circuitry.Corresponding uplink sub-carrier sub-channel signal is loaded by the modulation circuit of inside.
Figure 10 shows the OFDM-TDM-PON system of the register method applying ONU of the present invention, as shown in Figure 10, described system is OFDM-TDM-PON system, comprise n sub-carrier subchannels, each subchannel takies a pair up-downgoing subcarrier, corresponding one group of user, this group user shares a pair up-downgoing subcarrier by time-multiplexed mode.Same ODN network is coexisted in by the mode of OFDM between different carrier subsets passages.This system allows one or more OLT to use simultaneously, and each OLT takies one or more carrier subsets passage.ODN network is single-stage or multistage passive optical splitters type, can broadcast each downlink sub-carrier light signal to all ONU.ONU demodulates corresponding downlink sub-carrier sub-channel signal by inner orthogonal frequency de-multiplexing circuitry.And by modulation circuit, upward signal modulation is loaded into corresponding uplink sub-carrier subchannel.
Figure 11 shows the WDM-OFDM-PON system of the register method into applying ONU of the present invention, as shown in figure 11, described system is WDM-OFDM-PON system, comprise n wavelength subchannel, each wavelength subchannel takies a pair up-downgoing wavelength, corresponding one group of user, this group user shares a pair up-downgoing wavelength by the mode of OFDM.Coexist in same ODN network by the mode of wavelength division multiplexing between different wavelength subchannels, this system allows one or more OLT to use simultaneously, and each OLT takies one or more wavelength subchannel.ODN network is single-stage or multistage passive optical splitters type, can broadcast the downlink optical signal of each wavelength to all ONU.ONU selects corresponding wavelength subchannel by inner tunable receiver, and the orthogonal frequency de-multiplexing circuitry further by inside demodulates corresponding downlink sub-carrier sub-channel signal.Launched the light of respective wavelength subchannel by the tunable laser of inside, by modulation circuit, upward signal modulation is loaded into corresponding uplink sub-carrier subchannel.
Figure 12 shows the WDM-OFDM-TDM-PON system of the register method applying ONU of the present invention, as shown in figure 12, described system is WDM-OFDM-TDM-PON system, comprise n wavelength subchannel, each wavelength subchannel takies a pair up-downgoing wavelength, and each wavelength subchannel comprises again the secondary subchannel of multiple subcarrier.The corresponding a pair up-downgoing subcarrier of the secondary subchannel of each subcarrier, the corresponding one group of user of the secondary subchannel of each subcarrier, this group user shares a pair secondary subchannel of up-downgoing subcarrier by the mode of TDM.A pair up-downgoing wavelength subchannel is shared by the mode of OFDM between the secondary subchannel of different subcarriers, same ODN network is coexisted in by the mode of wavelength division multiplexing between different wavelength subchannels, this system allows one or more OLT to use simultaneously, each OLT takies one or more wavelength subchannel, and the secondary subchannel of multiple subcarriers under same wavelength subchannel can distribute to different OLT.ODN network is single-stage or multistage passive optical splitters type, can broadcast the downlink optical signal that whole wavelength subchannel (comprising the secondary subchannel of each subcarrier below each wavelength subchannel) loads to all ONU.ONU selects corresponding wavelength subchannel by inner tunable receiver, and the orthogonal frequency de-multiplexing circuitry further by inside demodulates the secondary sub-channel signal of corresponding downlink sub-carrier.Launched the light of respective wavelength subchannel by the tunable laser of inside, and by modulation circuit, upward signal modulation is loaded into the secondary subchannel of corresponding uplink sub-carrier.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (14)
1. a register method for optical network unit ONU, is characterized in that, described method comprises:
ONU and at least one OLT carries out the mutual of OLT identification information;
When the OLT identification information that the identification information of described OLT is pre-configured with described ONU is consistent, the authentication information of self and bandwidth requirement information are reported described OLT by described ONU;
After the authentication of described ONU is passed through, described OLT is that described ONU distributes subchannel according to the bandwidth requirement information received;
ONU carries out registering and service communication on the described subchannel distributing to self.
2. method according to claim 1, is characterized in that, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
Described ONU receives the ONU discovery message that described OLT sends, and described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, the subchannel that described OLT serves is labeled as inapplicable passage by described ONU, and adjust to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message.
3. method according to claim 1, is characterized in that, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
Described ONU receives the ONU discovery message that described OLT sends, to the OLT identification information that described OLT reports self pre-configured;
After described OLT receives the pre-configured OLT identification information of described ONU, judge that whether the pre-configured OLT identification information of self identification information and described ONU is consistent;
When the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described OLT to described ONU issue include self serve the refusal registration message of sub-channel information;
The subchannel that described OLT serves is labeled as inapplicable passage after receiving refusal registration message by described ONU, and adjusts to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continues to intercept ONU and finds message.
4. method according to claim 1, is characterized in that, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
Described ONU receives the ONU discovery message that described OLT sends, and described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared.
5. method according to claim 4, is characterized in that, when the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described method also comprises:
The sub-channel information that described ONU is served separately according to all OLT comprised in the ONU discovery message received, adjusts to any one subchannel that self pre-configured OLT serves, continues to intercept ONU and find message by reception subchannel;
Described ONU listens to ONU and finds message, finds the discovery window information in message according to described ONU, is finding window sends self authentication information and bandwidth requirement information to described OLT.
6. method according to claim 1, is characterized in that, what described ONU and at least one OLT carried out OLT identification information is alternately:
ONU intercepts the ONU discovery message that any one OLT sends at any subchannel at random when access network;
The ONU that described ONU receives described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
After described OLT receives the pre-configured OLT identification information of described ONU, judge that whether the pre-configured OLT identification information of self identification information and described ONU is consistent.
7. method according to claim 6, is characterized in that, when the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, described method also comprises:
The pre-configured OLT identification information that described OLT reports according to ONU, the OLT pre-configured with described ONU carries out communicating or being communicated by the OLT that third party is pre-configured with described ONU, determines the sub-channel information that described ONU is applicable to;
Subchannel adjustment information is sent to described ONU by the current subchannel of intercepting of described ONU by described OLT;
Reception subchannel is adjusted to described applicable subchannel according to the sub-channel information be applicable in the subchannel adjustment information received and is intercepted ONU discovery message by described ONU.
8. an Accreditation System of ONU, is characterized in that, described system comprises: ONU and multiple OLT; Wherein,
Described ONU, for carrying out the mutual of OLT identification information with at least one OLT, when the OLT identification information that the information that described OLT identifies and self are pre-configured is consistent, reports the authentication information of self and bandwidth requirement information;
Described OLT, for after the authentication of described ONU is passed through, is that described ONU distributes subchannel according to the bandwidth requirement information received;
Described ONU, also for carrying out registering and service communication on the described subchannel distributing to self.
9. system according to claim 8, is characterized in that, described ONU, and the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared;
Described ONU, also for when the identification information of described OLT and self pre-configured OLT identification information inconsistent time, the subchannel that described OLT serves is labeled as inapplicable passage, and adjust to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message.
10. system according to claim 8, is characterized in that, described ONU, and the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, to the OLT identification information that described OLT reports self pre-configured; After receiving refusal registration message, the subchannel that described OLT serves is labeled as inapplicable passage, and adjusts to any one subchannel outside subchannel that described OLT serves by receiving subchannel, continue to intercept ONU and find message;
Described OLT, after receiving the pre-configured OLT identification information of described ONU, judges that whether the pre-configured OLT identification information of self identification information and described ONU is consistent; When inconsistent, to described ONU issue include self serve the refusal registration message of sub-channel information.
11. systems according to claim 8, is characterized in that, described ONU, and the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When receiving the ONU discovery message that described OLT sends, described ONU is found the identification information of the described OLT comprised in message and self pre-configured OLT identification information are compared.
12. systems according to claim 11, it is characterized in that, described ONU, also for the identification information of described OLT and self pre-configured OLT identification information inconsistent time, the sub-channel information served separately according to all OLT comprised in the ONU discovery message received, reception subchannel is adjusted to any one subchannel that self pre-configured OLT serves, continue to intercept ONU and find message; Finding message when listening to ONU, finding the discovery window information in message according to described ONU, finding window sends self authentication information and bandwidth requirement information to described OLT.
13. systems according to claim 8, is characterized in that, described ONU, and the ONU sent at any subchannel specifically for intercepting any one OLT when access network at random finds message; When the ONU receiving described OLT finds message, to the OLT identification information that described OLT reports self pre-configured;
Described OLT, specifically for after receiving the pre-configured OLT identification information of described ONU, judges that whether the pre-configured OLT identification information of self identification information and described ONU is consistent.
14. systems according to claim 13, it is characterized in that, described OLT, also for the identification information of described OLT and the pre-configured OLT identification information of described ONU inconsistent time, according to the pre-configured OLT identification information that ONU reports, the OLT pre-configured with described ONU carries out communicating or being communicated by the OLT that third party is pre-configured with described ONU, determines the sub-channel information that described ONU is applicable to; And subchannel adjustment information is sent to described ONU by the current subchannel of intercepting of described ONU;
Described ONU, also intercepts ONU discovery message for reception subchannel being adjusted to described applicable subchannel according to the sub-channel information be applicable in the subchannel adjustment information received.
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| EP3057269B1 (en) * | 2013-10-31 | 2018-01-17 | Huawei Technologies Co., Ltd. | Control channel establishment method, apparatus and system |
| CN104753586B (en) * | 2013-12-25 | 2017-08-15 | 中国电信股份有限公司 | The acquisition method and system of passive optical network element information |
| CN103763148B (en) * | 2014-02-25 | 2019-12-20 | 上海斐讯数据通信技术有限公司 | ONU automatic authorization configuration recovery method |
| CN105100969A (en) | 2014-05-13 | 2015-11-25 | 中兴通讯股份有限公司 | Business service processing method, apparatus and optical line terminal |
| CN106488345B (en) * | 2015-08-24 | 2020-06-16 | 中兴通讯股份有限公司 | Data transmission method, device and system, ONU (optical network Unit) and OLT (optical line terminal) |
| CN105119932B (en) * | 2015-09-10 | 2018-05-29 | 烽火通信科技股份有限公司 | The implementation method that ONU equipment internal voice calls in passive optical network |
| EP3349479A4 (en) * | 2015-09-22 | 2018-08-15 | Huawei Technologies Co., Ltd. | Optical network unit registration method, device and system |
| CN107317647B (en) | 2016-04-26 | 2019-07-26 | 中兴通讯股份有限公司 | The method of adjustment in channel, apparatus and system |
| CN107370688B (en) * | 2016-05-12 | 2022-09-27 | 中兴通讯股份有限公司 | Data transmission method and device |
| CN109803327B (en) * | 2017-11-16 | 2020-11-17 | 华为技术有限公司 | Communication method and device |
| CN109274489B (en) * | 2018-09-25 | 2021-05-28 | 重庆邮电大学 | Authentication key negotiation method under TWDM-PON system |
| CN110944248B (en) * | 2018-09-25 | 2022-06-21 | 中兴通讯股份有限公司 | Optical network registration method, OLT, ONU and optical network system |
| CN113473268A (en) * | 2020-03-31 | 2021-10-01 | 华为技术有限公司 | Channel identification method and device based on multiplexing |
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