CN101465694A - Passive optical network system, optical line terminal, authentication information generation and authentication method - Google Patents
Passive optical network system, optical line terminal, authentication information generation and authentication method Download PDFInfo
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- CN101465694A CN101465694A CNA2007100327047A CN200710032704A CN101465694A CN 101465694 A CN101465694 A CN 101465694A CN A2007100327047 A CNA2007100327047 A CN A2007100327047A CN 200710032704 A CN200710032704 A CN 200710032704A CN 101465694 A CN101465694 A CN 101465694A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1694—Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0088—Signalling aspects
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Abstract
The invention discloses a passive optical network system, an optical line terminal, an authentication information generation and authentication method; the authentication method obtains reciprocating multiple authentication judgment distance measurement results through measuring the distance between user end and optical line terminal back and forth for times; distance measurement authentication judgment information between the user end and the optical line terminal is generated according to the reciprocating multiple authentication judgment distance measurement results; then, pre-stored distance measurement authentication information between the user end and the optical line terminal is acquired; finally, the distance measurement authentication judgment information is compared with the pre-stored distance measurement authentication information to determine authentication result. The invention magnifies the differentiation of multiple distance measurement values and avoids the requirement of maintaining minimum difference among the branch lengths of the optical line terminal in the process of optical distribution network wiring, so the wiring engineering is ensured to be relatively easier.
Description
Technical field
The present invention relates to EPON (PON, Passive Optical Network) technical field, in particular, the present invention relates to a kind of passive optical network, optical line terminal, authentication information generation and authentication method.
Background technology
The PON technology is the light access technology of getting up to the application development of multiple spot for support point, general, the PON network generally includes the optical line terminal (OLT that is positioned at the central office, Optical Line Termination), a series of ustomer premises access equipments that are positioned at user resident, be generally network unit/optical network terminal (ONU/ONT, Optical Network Unit/Optical Network Termination)), and it is middle by optical fiber at described OLT and ustomer premises access equipment, the Optical Distribution Network (ODN, Optical Distribution Network) that passive optical splitters or coupler constitute.Its substantive characteristics is that ODN all is made up of passive device, passive optical splitter and coupler only play the effect of transmitting and limiting light, do not need power supply and information processing, and has a unrestricted mean time between failures (MTBF), it is more flexible that passive characteristic makes that network lays, and need not machine room and power supply etc.; Share the characteristic of optical fiber and can save a large amount of fiber resources, make that the Access Network line cost is lower; And the structure of pure smooth medium, transparent fiber broadband network makes to the following professional fail safe that has kept technology of expanding.
Usually, in the service operation process of PON network, operator wish can limited subscriber end equipment the scope of application, if promptly do not go through the formalities of reporting to the local authorities for change of domicile, move under the other port and can't use at the ustomer premises access equipment that uses under a certain port in the PON network.
But present PON network system is because the characteristic of its point-to-multipoint is difficult to look like the such line bonding of Digital Subscriber Line (DSL, Digital Subscriber Line), and when ustomer premises access equipment moved on to other branches of passive optical splitters, OLT was difficult to discover.
For this reason, prior art utilizes the distinctive distance measurement function of PON network to discern ustomer premises access equipment, the distance measurement function that the PON network provides is meant: can accurately measure the distance of ustomer premises access equipment to terminal OLT device by association message, general, error is about 3-10 rice.Value two-way time (RTT, Round Trip Time) of this distance and this ustomer premises access equipment is proportional.Utilize this function, can after opening an account, the user land the PON network for the first time, when perhaps specifying certain to land the PON network, the RTT value record of this ustomer premises access equipment that the PON network is recorded is in terminal OLT device, and and the binding of the authentication information of this ustomer premises access equipment, as one of this user fixing identifying information.
When other people authentication information of invalid user stealing lands the PON networking from other places; because the fiber distance to terminal OLT device may change; terminal OLT device can be found this RTT value of landing of this user; Bang Ding RTT value is inconsistent before; can refuse this user in view of the above lands; perhaps produce alarm, remind the attendant to note, thereby the network of protection validated user uses right.
But each branch length that needs PON in the such scheme all is different, and the lowest difference that for example may require each branch is apart from about 10m, thereby makes the wiring installation more complicated.
Summary of the invention
The technical problem that the embodiment of the invention solves provides a kind of passive optical network, optical line terminal, authentication information and generates and authentication method, with realize the PON ustomer premises access equipment can and line bonding, make wiring installation simpler relatively.
A kind of authentication information generation method comprises:
Between each ustomer premises access equipment and optical line terminal, come and go and repeatedly find range and obtain the authentication range finding result who comes and goes repeatedly;
Generate and preserve range finding authentication information between each ustomer premises access equipment and optical line terminal according to the described authentication range finding result who comes and goes repeatedly range finding.
A kind of authentication method comprises:
Coming and going between ustomer premises access equipment and optical line terminal repeatedly finds range and obtain comes and goes repeatedly authentication determination range finding result;
Generate range finding authentication decision information between ustomer premises access equipment and optical line terminal according to the described authentication decision range finding result that comes and goes repeatedly;
Obtain the ustomer premises access equipment of preservation in advance and the range finding authentication information between optical line terminal;
Described range finding authentication decision information and described range finding authentication information are compared to determine authentication result.
A kind of optical line terminal comprises:
The range finding performance element is used for finding range between ustomer premises access equipment and optical line terminal;
Range finding authentication information generation unit, when being used for starting the range finding authentication information and generating, the range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication information between ustomer premises access equipment and optical line terminal;
The authentication information memory cell is used to store the range finding authentication information between described ustomer premises access equipment and optical line terminal;
Range finding authentication determination information generating unit, when being used to start authentication determination, the authentication determination range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication decision information between ustomer premises access equipment and optical line terminal;
The authentication decision unit is used for the range finding authentication decision information of described range finding authentication determination information generating unit generation and the range finding authentication information of described authentication information cell stores are compared definite authentication result.
A kind of passive optical network comprises: ustomer premises access equipment and optical line terminal, and wherein said optical line terminal comprises:
The range finding performance element is used for finding range between ustomer premises access equipment and optical line terminal;
Range finding authentication information generation unit, when being used for starting the range finding authentication information and generating, the range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication information between ustomer premises access equipment and optical line terminal;
The authentication information memory cell is used to store the range finding authentication information between described ustomer premises access equipment and optical line terminal;
Range finding authentication determination information generating unit, when being used to start authentication determination, the authentication determination range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication decision information between ustomer premises access equipment and optical line terminal;
The authentication decision unit is used for the range finding authentication decision information of described range finding authentication determination information generating unit generation and the range finding authentication information of described authentication information cell stores are compared definite authentication result.
Passive optical network, optical line terminal, authentication information according to above-mentioned present embodiment generate and authentication method, can realize PON ustomer premises access equipment and line bonding, when the ustomer premises access equipment of binding is authenticated, come and go repeatedly authentication determination range finding result by between ustomer premises access equipment and optical line terminal, coming and going repeatedly to find range and obtain; Generate range finding authentication decision information between ustomer premises access equipment and optical line terminal according to the described authentication decision range finding result that comes and goes repeatedly; Obtain the ustomer premises access equipment of preservation in advance and the range finding authentication information between optical line terminal then; At last described range finding authentication decision information and described range finding authentication information are compared to determine authentication result.By differentiation processing and amplifying to the income value of repeatedly finding range, need guarantee the requirement of the lowest difference distance between each branch length of ONT when having avoided the ODN wiring, make wiring installation simpler relatively.
Description of drawings
Fig. 1 is the flow chart of embodiment of the invention authentication method;
Fig. 2 is a kind of structural representation of embodiment of the invention passive optical network;
Fig. 3 is a kind of example structure schematic diagram of authentication decision unit in the ustomer premises access equipment shown in Figure 2.
Embodiment
Under the situation that different branches is more or less the same apart from the length of OLT, will be difficult to authenticate according to the range finding result, in order to address this problem, when realizing PON ustomer premises access equipment and line bonding, can adopt according to the range finding result who comes and goes repeatedly and authenticate, and no longer be to authenticate according to a range finding result back and forth, like this, be equivalent to different branches carried out the differentiation processing and amplifying apart from the length of OLT by the income value of repeatedly finding range, need guarantee the requirement of the lowest difference distance between each branch length of ONT when having avoided the ODN wiring, make wiring installation simpler relatively.
With reference to figure 1, this figure is the main flow chart of embodiment of the invention authentication method.
PON ustomer premises access equipment and line bonding rely on the different range finding result between each branched line and the OLT and decide in the present embodiment, and concrete verification process comprises the steps:
Step S101 comes and goes between Optical Network Terminal and optical line terminal and repeatedly finds range and obtain the authentication determination range finding result who comes and goes repeatedly, during specific implementation, for example tests N back and forth, obtains N authentication determination range finding result back and forth;
Step S102, generate range finding authentication decision information between Optical Network Terminal and optical line terminal according to the described authentication decision range finding result that comes and goes repeatedly, during specific implementation, be about between Optical Network Terminal and optical line terminal apart from carrying out the differentiation processing and amplifying, wherein said range finding authentication decision information can be come and go repeatedly range finding apart from authentication information, also can be to come and go repeatedly information two-way time of range finding;
Step S103, obtain the Optical Network Terminal of preservation in advance and the range finding authentication information between optical line terminal, during specific implementation, described Optical Network Terminal of preserving in advance and the range finding authentication information between optical line terminal need to generate by round repeatedly range finding equally, soon distance is carried out the differentiation processing and amplifying between Optical Network Terminal and optical line terminal, and specific implementation can comprise:
Between each Optical Network Terminal and optical line terminal, come and go and repeatedly find range and obtain the authentication range finding result who comes and goes repeatedly; Generate range finding authentication information between each Optical Network Terminal and optical line terminal according to the described authentication range finding result who comes and goes repeatedly range finding then, at last described range finding authentication information is preserved.
Need illustrate, above-mentioned if the authentication range finding result who comes and goes repeatedly is the round repeatedly distance of range finding; Then described range finding authentication information can for come and go repeatedly range finding apart from authentication information, and if come and go repeatedly authentication range finding result for coming and going repeatedly information two-way time of range finding; Then described range finding authentication information is for coming and going repeatedly information two-way time of range finding.
Step S104 compares described range finding authentication decision information and described range finding authentication information to determine authentication result, and during specific implementation, for example, the authentication decision of will finding range information compares with the range finding authentication information; Judge comparative result whether within authentication area, if judged result then determines to authenticate and passes through for being, otherwise, determine that authentication do not pass through.
Need illustrate, Optical Network Terminal that above-mentioned steps S103 preserves in advance and the range finding authentication information between optical line terminal can ustomer premises access equipment for example the ONT first login in back of opening an account obtain by range finding repeatedly when reaching the standard grade, also can ustomer premises access equipment for example ONT follow-up certain in back of opening an account obtain by range finding repeatedly when reaching the standard grade (the first login in the non-back of opening an account); In addition, repeatedly range finding acquisition range finding authentication information is preferably consistent with the number of times of range finding authentication decision information, to guarantee less error.
For the said method of realizing that the embodiment of the invention provides, need do corresponding expansion to the function of existing network system and equipment.
With reference to figure 2, this figure is a kind of structural representation of embodiment of the invention passive optical network.
The passive optical network of present embodiment mainly comprises: ustomer premises access equipment 1 and optical line terminal 2, and wherein ustomer premises access equipment 1 may be Optical Network Terminal or optical network unit;
And in order to realize that with described ustomer premises access equipment and line bonding optical line terminal described in the present embodiment 2 can comprise:
Range finding performance element 21 is used for finding range between ustomer premises access equipment and optical line terminal;
Range finding authentication information generation unit 22, when being used for starting the generation of range finding authentication information, the range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication information between ustomer premises access equipment and optical line terminal, for example with reference to above stated specification, described range finding authentication information can be the range finding authentication information of range difference alienation processing and amplifying between ustomer premises access equipment and optical line terminal;
Authentication information memory cell 23 is used to store the range finding authentication information of described ustomer premises access equipment and optical line terminal range difference alienation amplification;
Range finding authentication determination information generating unit 24, when being used to start authentication determination, the authentication determination range finding result who comes and goes repeatedly range finding according to range finding performance element 21 generates the range finding authentication decision information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal, for example with reference to above stated specification, the range finding authentication decision information that described range finding authentication decision information can be range difference alienation processing and amplifying between ustomer premises access equipment and optical line terminal;
Authentication decision unit 25, be used for the range finding authentication decision information of described range finding authentication determination information generating unit 24 generations and the range finding authentication information of described authentication information memory cell 23 storages are compared definite authentication result, during specific implementation, for example, with reference to figure 3, a specific embodiment of described authentication decision unit 25 can comprise:
Comparing unit 251 is used for range finding authentication decision information and range finding authentication information are compared;
Determining unit 252 is used to judge comparative result whether within authentication area, if judged result is for being then to determine to authenticate and pass through, otherwise, determine that authentication do not pass through, can refuse it and reach the standard grade, or the generation alarm log, the prompting attendant confirms processing etc., no longer describes in detail here.
In addition, with reference to above stated specification, the result is the round repeatedly distance of range finding if the round repeatedly authentication determination of described range finding performance element 21 is found range in the present embodiment; The range finding authentication decision information that then described range finding authentication determination information generating unit 24 generates then can for come and go repeatedly range finding apart from authentication decision information.
And if the authentication determination range finding result that comes and goes repeatedly of described range finding performance element 21 is the round repeatedly two-way time of range finding; The range finding authentication decision information that then described range finding authentication determination information generating unit 24 generates can be for coming and going repeatedly authentication decision information two-way time of range finding.
To sum up, the passive optical network of present embodiment, optical line terminal, authentication information generate and authentication method, can realize PON ustomer premises access equipment and line bonding, when the ustomer premises access equipment of binding is authenticated, come and go repeatedly authentication determination range finding result by between ustomer premises access equipment and optical line terminal, coming and going repeatedly to find range and obtain; Generate the range finding authentication decision information of ustomer premises access equipment and optical line terminal range difference alienation amplification according to described round repeatedly authentication decision range finding result; Obtain the ustomer premises access equipment of preservation in advance and the range finding authentication information that the alienation of optical line terminal range difference is amplified then; At last described range finding authentication decision information and described range finding authentication information are compared to determine authentication result.By differentiation processing and amplifying to the income value of repeatedly finding range, need guarantee the requirement of the lowest difference distance between each branch length of ONT when having avoided the ODN wiring, make wiring installation simpler relatively.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1, a kind of authentication information generation method is characterized in that, comprising:
Between each ustomer premises access equipment and optical line terminal, come and go and repeatedly find range and obtain the authentication range finding result who comes and goes repeatedly;
Generate range finding authentication information between each ustomer premises access equipment and optical line terminal according to the described authentication range finding result who comes and goes repeatedly range finding.
2, authentication information generation method according to claim 1 is characterized in that, also comprises: preserve the range finding authentication information between each ustomer premises access equipment and optical line terminal.
3, authentication information generation method according to claim 1 is characterized in that, described range finding authentication information is the range finding authentication information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal.
4, authentication information generation method according to claim 1 is characterized in that, the described authentication range finding result who comes and goes repeatedly is the round repeatedly distance of range finding;
Described range finding authentication information for come and go repeatedly range finding apart from authentication information.
5, authentication information generation method according to claim 1 is characterized in that, the described authentication range finding result who comes and goes repeatedly is round repeatedly information two-way time of range finding;
Described range finding authentication information is for coming and going repeatedly information two-way time of range finding.
6, a kind of authentication method is characterized in that, comprising:
Coming and going between ustomer premises access equipment and optical line terminal repeatedly finds range and obtain comes and goes repeatedly authentication determination range finding result;
Generate range finding authentication decision information between ustomer premises access equipment and optical line terminal according to the described authentication decision range finding result that comes and goes repeatedly;
Obtain the ustomer premises access equipment of preservation in advance and the range finding authentication information between optical line terminal;
Described range finding authentication decision information and described range finding authentication information are compared to determine authentication result.
7, authentication method according to claim 6 is characterized in that, described range finding authentication decision information and described range finding authentication information are compared to determine that authentication result comprises:
The authentication decision of will finding range information compares with the range finding authentication information;
Judge comparative result whether within authentication area, if judged result then determines to authenticate and passes through for being, otherwise, determine that authentication do not pass through.
8, authentication method according to claim 6, it is characterized in that, described range finding authentication information is the range finding authentication information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal, and described range finding authentication decision information is the range finding authentication decision information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal.
According to each described authentication method of claim 6-8, it is characterized in that 9, the described result that repeatedly finds range that comes and goes is for coming and going the repeatedly distance of range finding;
Described range finding authentication decision information for come and go repeatedly range finding apart from authentication decision information.
According to each described authentication method of claim 6-8, it is characterized in that 10, the described result that repeatedly finds range that comes and goes is for coming and going the repeatedly two-way time of range finding;
Described range finding authentication decision information is for coming and going repeatedly authentication decision information two-way time of range finding.
11, a kind of optical line terminal is characterized in that, comprising:
The range finding performance element is used for finding range between ustomer premises access equipment and optical line terminal;
Range finding authentication information generation unit, when being used for starting the range finding authentication information and generating, the range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication information between ustomer premises access equipment and optical line terminal;
The authentication information memory cell is used to store the range finding authentication information of described ustomer premises access equipment and optical line terminal range difference alienation amplification;
Range finding authentication determination information generating unit, when being used to start authentication determination, the authentication determination range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication decision information between ustomer premises access equipment and optical line terminal;
The authentication decision unit is used for the range finding authentication decision information of described range finding authentication determination information generating unit generation and the range finding authentication information of described authentication information cell stores are compared definite authentication result.
12, optical line terminal according to claim 11 is characterized in that, described authentication decision unit comprises:
Comparing unit is used for range finding authentication decision information and range finding authentication information are compared;
Determining unit is used to judge comparative result whether within authentication area, if judged result then determines to authenticate and passes through for being, otherwise, determine that authentication do not pass through.
13, optical line terminal according to claim 11, it is characterized in that, the described range finding authentication information that described range finding authentication information generation unit generates is the range finding authentication information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal, and the described range finding authentication decision information that described range finding authentication determination information generating unit generates is the range finding authentication decision information that ustomer premises access equipment and the alienation of optical line terminal range difference are amplified.
According to each described optical line terminal of claim 11-13, it is characterized in that 14, the authentication determination range finding result that comes and goes repeatedly of described range finding performance element is the round repeatedly distance of range finding;
The range finding authentication decision information that described range finding authentication determination information generating unit generates for come and go repeatedly range finding apart from authentication decision information.
According to each described optical line terminal of claim 11-13, it is characterized in that 15, the authentication determination range finding result that comes and goes repeatedly of described range finding performance element is the round repeatedly two-way time of range finding;
The range finding authentication decision information that described range finding authentication determination information generating unit generates is for coming and going repeatedly authentication decision information two-way time of range finding.
16, a kind of passive optical network comprises: ustomer premises access equipment and optical line terminal is characterized in that described optical line terminal comprises:
The range finding performance element is used for finding range between ustomer premises access equipment and optical line terminal;
Range finding authentication information generation unit, when being used for starting the generation of range finding authentication information, the range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal;
The authentication information memory cell is used to store the range finding authentication information of described ustomer premises access equipment and optical line terminal range difference alienation amplification;
Range finding authentication determination information generating unit, when being used to start authentication determination, the authentication determination range finding result who comes and goes repeatedly range finding according to the range finding performance element generates the range finding authentication decision information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal;
The authentication decision unit is used for the range finding authentication decision information of described range finding authentication determination information generating unit generation and the range finding authentication information of described authentication information cell stores are compared definite authentication result.
17, passive optical network according to claim 16, it is characterized in that, the described range finding authentication information that described range finding authentication information generation unit generates is the range finding authentication information that the range difference alienation is amplified between ustomer premises access equipment and optical line terminal, and the described range finding authentication decision information that described range finding authentication determination information generating unit generates is the range finding authentication decision information that ustomer premises access equipment and the alienation of optical line terminal range difference are amplified.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100327047A CN101465694A (en) | 2007-12-19 | 2007-12-19 | Passive optical network system, optical line terminal, authentication information generation and authentication method |
| PCT/CN2008/073409 WO2009089708A1 (en) | 2007-12-19 | 2008-12-10 | Passive optical network system, optical line terminal, and method for generating and authenticating authentication information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100327047A CN101465694A (en) | 2007-12-19 | 2007-12-19 | Passive optical network system, optical line terminal, authentication information generation and authentication method |
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| CN101465694A true CN101465694A (en) | 2009-06-24 |
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| CNA2007100327047A Pending CN101465694A (en) | 2007-12-19 | 2007-12-19 | Passive optical network system, optical line terminal, authentication information generation and authentication method |
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| CN (1) | CN101465694A (en) |
| WO (1) | WO2009089708A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082977B (en) * | 2009-12-01 | 2014-03-05 | 中国电信股份有限公司 | Authentication method and system of optical network unit |
| CN113993013A (en) * | 2021-11-19 | 2022-01-28 | 北京邮电大学 | PON identity authentication method based on fiber channel characteristics and neural network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002135283A (en) * | 2000-10-24 | 2002-05-10 | Nec Corp | Optical subscriber system and method for monitoring transmission path length |
| CN1152488C (en) * | 2001-04-25 | 2004-06-02 | 华为技术有限公司 | Method for measuring distance in passive optical ATM network |
| CN100583760C (en) * | 2005-04-27 | 2010-01-20 | 华为技术有限公司 | Verification implementation method and device |
-
2007
- 2007-12-19 CN CNA2007100327047A patent/CN101465694A/en active Pending
-
2008
- 2008-12-10 WO PCT/CN2008/073409 patent/WO2009089708A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082977B (en) * | 2009-12-01 | 2014-03-05 | 中国电信股份有限公司 | Authentication method and system of optical network unit |
| CN113993013A (en) * | 2021-11-19 | 2022-01-28 | 北京邮电大学 | PON identity authentication method based on fiber channel characteristics and neural network |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009089708A1 (en) | 2009-07-23 |
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