CN100426741C - Automatic configurating method for EPON net element device - Google Patents
Automatic configurating method for EPON net element device Download PDFInfo
- Publication number
- CN100426741C CN100426741C CNB200510041196XA CN200510041196A CN100426741C CN 100426741 C CN100426741 C CN 100426741C CN B200510041196X A CNB200510041196X A CN B200510041196XA CN 200510041196 A CN200510041196 A CN 200510041196A CN 100426741 C CN100426741 C CN 100426741C
- Authority
- CN
- China
- Prior art keywords
- olt
- configuration data
- onu
- configuration
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
This invention relates to an automatic configuration method for EPON NE devices including the following steps: storing the following data on the OLT of EPON: default configuration data, ntwork configuration data configuration data, when initializing OLT, the OLT level default configuration data are used to configure the OLT and ONU then to duplicate said default data as the network configuration data and the current configuration data, users can configure OLT or ONU from the network management according to the actual need and sends down related data, when the OLT is reset or deactivated, the OLT level and all current configured data of the ONU level on the OLT are removed, after the OLT is reset or reactivated after the deactivation, the data of the OLT level in the network data are used to configure the OLT, after the ONU is registered, the ONU level data in the network data are used t oconfigure ONU, after the ONU is de-registered, the ONU level current data are eliminated.
Description
Technical field
The present invention relates to passive optical network (PON), relate in particular to a kind of method of automatic configuration that is used for Ethernet passive optical network (EPON) network element device (comprising optical line terminal OLT and optical network unit ONU).
Background technology
The EPON technology is the emerging broadband passive optical network technology based on Ethernet.Compare with traditional access network technology and Ethernet Exchanger Technology, EPON adopts automatic topological discover mechanism, and its ONU has automatic registering functional, can register and go registration dynamically.And each ONU needs it is configured again after re-registering.In addition, for a EPON, also can activate dynamically and deexcitation wherein OLT with a plurality of OLT.This has also proposed the dynamic-configuration requirement to OLT.Therefore, need consider dynamic-configuration to the configuration management of EPON network element device to single OLT and ONU.
Collocation method to network element device is present in the traditional access network technology and Ethernet Exchanger Technology equally, but, owing to do not exist the automatic registration of network element device to go registration problem, just it is not carried out the requirement that dynamic-configuration is managed, its collocation method can not be applied to the configuration management of EPON network element device.Therefore, the practical application of EPON technology needs the new Dynamic Configuration that is suitable for the EPON network element device.Yet, up to the present, also do not see the report of similar configuration method.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of EPON network element device method of automatic configuration, has overcome the shortcoming that existing collocation method is not suitable for the EPON network element device, to the automatic configuration of such network element device.
To achieve these goals, the invention provides a kind of EPON network element device method of automatic configuration, be used for the EPON network element device that comprises optical line terminal OLT and optical network unit ONU is configured, its characteristics are, comprise the steps:
Step 1, on the OLT of EPON, preserve following data: default configuration data, network management configuration data, and current configuration data, every kind of configuration data is divided into again: single-plate grade configuration data, OLT level configuration data and ONU level configuration data;
Step 2 is during the OLT initialization, with OLT level default configuration data configuration OLT and ONU; After the configuration successful these default configuration data are duplicated as network management configuration data and current configuration data;
Step 3, the user can be configured OLT or ONU from webmaster according to actual needs, and issues relevant configuration data;
Step 4, OLT resets or during deexcitation, removes the current configuration data that OLT level and this OLT go up all ONU levels;
Step 5, OLT reset finish or deexcitation after when activating again again, with the configuration of the OLT level in network management configuration data data configuration OLT, from webmaster, OLT is configured according to the actual needs by the user, and issues relevant configuration data;
Step 6 after ONU succeeds in registration, with ONU level configuration data configuration ONU in the network management configuration data, is configured ONU from webmaster according to the actual needs by the user, and issues relevant configuration data;
Step 7 after ONU goes registration, is removed ONU level current configuration data.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are that in described step 3, described network element device OLT or ONU comprise the following step to the processing procedure of webmaster down distributing configuration data:
Earlier the described configuration data that issues is saved to the network management configuration data;
Judging whether then can operational hardware, if can not operational hardware, then directly returns, and configuration finishes; Otherwise operational hardware;
Judge whether success of hardware operation result, if success then the network management configuration data are saved in current configuration data, otherwise directly return, configuration finishes.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are, before the described configuration data that issues is saved to the step of network management configuration data, also comprise step:
Legitimacy to the described configuration data that issues checks, if not by directly return, configuration finishes, otherwise then the described configuration data that issues is saved to the network management configuration data.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are that in step 5, the layoutprocedure when OLT activates comprises the steps:
According to network management configuration data activation OLT, if failure then according to default configuration data activation OLT, if success then according to OLT level webmaster operating data operation OLT;
If activate the OLT success, then continue from webmaster, OLT to be configured according to the actual needs by the user, and to issue relevant configuration data with OLT level network management configuration data configuration OLT.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are, if also fail according to default configuration data activation OLT, then send alarm to webmaster.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are, in step 6, also comprise step before described ONU succeeds in registration:
Check and preserve the ONU log-on message;
ONU is authenticated.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are, in step 7, remove ONU level current configuration data and also comprise the steps: before
Deexcitation OLT;
Operational hardware is removed the configuration data relevant with this ONU.
Above-mentioned EPON network element device method of automatic configuration, its characteristics are, comprise that also one recovers the treatment step of network element device default configuration operation, and it comprises:
Remove ONU level current configuration data;
ONU level default data is copied to corresponding ONU level network management configuration data;
Press OLT deexcitation arrangements of steps;
Press OLT and activate step operation OLT, with current network management configuration data activation and dispose OLT;
Press ONU registration step operation ONU, after ONU re-registers successfully, reconfigure ONU with current network management configuration data.
Adopt the method for the invention, compared with prior art, owing to taked above-mentioned configuration data, make the EPON network element device not have also to carry out work under the network management configuration by basic default configuration, and when OLT activates again or ONU can dispose automatically it after re-registering, improved the efficient and the flexibility of EPON network element device configuration.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the schematic diagram that concerns between the configuration data of the present invention;
Fig. 2 is the process chart of webmaster down distributing configuration data of the present invention;
Fig. 3 is OLT of the present invention configuration flow figure when activating;
Configuration process flow chart when Fig. 4 is OLT deexcitation of the present invention;
Configuration flow figure when Fig. 5 is ONU of the present invention registration;
Fig. 6 is the configuration process flow chart of ONU of the present invention when going to register;
Fig. 7 is an EPON network element of the present invention flow chart when recovering default configuration.
Embodiment
EPON network element device method of automatic configuration of the present invention can be used for the EPON network element device that comprises optical line terminal OLT and optical network unit ONU is configured, and it can comprise the steps:
Step 1, on the OLT of EPON, preserve following data: default configuration data, network management configuration data, and current configuration data, every kind of configuration data is divided into again: single-plate grade configuration data, OLT level configuration data and ONU level configuration data; Wherein, these default configuration data comprise the data that all can be used to the configuration operation that OLT hardware carries out, scope is identical with network management configuration data and current configuration data, be divided into plate level, OLT level and ONU level data equally, plate level configuration packet is drawn together: the PON mouth optical parameter of OLT etc. on statistic sampling cycle, alarm monitoring cycle, the plate; OLT level configuration packet is drawn together: the DBA algorithm parameter of OLT alarm control, OLT upper united mouth physical parameter, OLT etc.; ONU level configuration packet has been drawn together: VLAN configuration data, band data, multicast filtering control, authentication control, encryption control, ONU alarm control etc.
Step 2 is during the OLT initialization, with OLT level default configuration data configuration OLT and ONU; After the configuration successful these default configuration data are duplicated as network management configuration data and current configuration data;
Step 3, the user can be configured OLT or ONU from webmaster according to actual needs, and issues relevant configuration data;
Step 4, OLT resets or during deexcitation, removes the current configuration data that OLT level and this OLT go up all ONU levels;
Step 5, OLT reset finish or deexcitation after when activating again again, with the configuration of the OLT level in network management configuration data data configuration OLT, from webmaster, OLT is configured according to the actual needs by the user, and issues relevant configuration data;
Step 6 after ONU succeeds in registration, with ONU level configuration data configuration ONU in the network management configuration data, is configured ONU from webmaster according to the actual needs by the user, and issues relevant configuration data;
Step 7 after ONU goes registration, is removed ONU level current configuration data.
Wherein, in described step 3, described network element device OLT or ONU comprise the following step to the processing procedure of webmaster down distributing configuration data:
Earlier the described configuration data that issues is saved to the network management configuration data;
Judging whether then can operational hardware, if can not operational hardware, then directly returns, and configuration finishes; Otherwise operational hardware;
Judge whether success of hardware operation result, if success then the network management configuration data are saved in current configuration data, otherwise directly return, configuration finishes.
Below in conjunction with accompanying drawing, in detail each configuration flow in the method for the present invention is described.
Fig. 1 has introduced the configuration data the taked relation of the inventive method to the EPON network element device.As can be seen from the figure, the default configuration data have played the relation that is similar to the configuration data that webmaster issues when initialization, but it is different with the webmaster down distributing configuration data, the selection of default configuration data, generally select by the principle of versatility, to guarantee not having under the situation of network management configuration, also can use basic EPON network element device function.The network management configuration data are that webmaster issues and have passed through the configuration data of validity checking that its strictness has reflected the configuration operation of webmaster to network element device.And current configuration data is equivalent to dispose the network management configuration data after the success of network element device hardware.Do not provide the hardware device of hardware virtual condition parameter query interface for those, what these data reflected is exactly the state parameter of equipment actual motion.
Fig. 2 has introduced the handling process of the inventive method to the webmaster down distributing configuration data.As shown in the drawing, network element is after receiving the configuration data that webmaster issues, at first the legitimacy of data is checked (as whether exceeding rational span), if not by directly return configuration failure (parameter is illegal), otherwise then these data are saved in the network management configuration data.Afterwards, according to the practical operation situation of hardware judge whether can configure hardware (as: whether OLT has been in state of activation, whether ONU has registered and by authentication), if can not operational hardware then directly return configuration and finish, wait can be configured during operational hardware again, if can operational hardware then hardware is configured, and decision operation result, configuration failure (operational hardware failure) is then returned in failure as operational hardware, otherwise then the network management configuration data are saved to current configuration data, as the map of the current operational factor of hardware.
Fig. 3 has introduced the configuration flow of the inventive method when OLT activates.As shown in the drawing, at first, with network management configuration data deexcitation OLT, if failure then activate with the default configuration data, if still failure would then send and alarms to webmaster (if any).Secondly, if activate the OLT success, then issue data configuration flow processing (as shown in Figure 2), continue with OLT level network management configuration data (some are of overall importance or to the OLT active data, as: address table ageing time and OLT alarm are provided with etc.) configure OLT by webmaster.At last, if operational hardware is successful configuration data is saved to current configuration data.
Fig. 4 has introduced the handling process of the inventive method when the OLT deexcitation.As shown in the drawing, at first operational hardware makes it deexcitation, removes OLT level current configuration data again after the success, removes all ONU level current configuration data in this EPON system at last again.The subsequent step of this flow process will comprise the location registration process of going of ONU network element device, see that Fig. 6 illustrates.
Fig. 5 has introduced the configuration process flow process of the inventive method when ONU succeeds in registration.As shown in the drawing, at first check the relevant information of ONU registration, if necessary, also the network management configuration data are carried out authentication operation to this ONU more, afterwards, with the ONU level data in the network management configuration data (as: data such as upstream bandwidth distribution, VLAN configuration, peer-to-peer communicate configuration and alarm control) network element hardware (can be that OLT also can be ONU, look the specific implementation of different configuration datas) is configured operation.Its subsequent flows journey and shown in Figure 2 similar can issue the data configuration flow processing by webmaster.
Fig. 6 has introduced the configuration process flow process of the inventive method when ONU goes to succeed in registration.As shown in the drawing, the configuration before at first removing on hardware (as static address, P2P connection etc.) then, empties ONU level current configuration data.
Fig. 7 has introduced method of automatic configuration of the present invention to recovering the handling process of network element default configuration operation.As shown in the drawing, at first remove ONU level current configuration data, and ONU level default configuration data are copied to corresponding network management configuration data, make the OLT deexcitation by Fig. 4 flow process then, again by the current network management configuration data activation of Fig. 3 flow process and dispose OLT.At last, after ONU re-registers successfully, reconfigure ONU with current network management configuration data by flow process shown in Figure 5.The final default configuration that just can recover whole EPON system equipment.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1, a kind of EPON network element device method of automatic configuration is used for the EPON network element device that comprises optical line terminal OLT and optical network unit ONU is configured, and it is characterized in that, comprises the steps:
Step 1, on the OLT of EPON, preserve following data: default configuration data, network management configuration data, and current configuration data, every kind of configuration data is divided into again: single-plate grade configuration data, OLT level configuration data and ONU level configuration data;
Step 2 is during the OLT initialization, with OLT level default configuration data configuration OLT and ONU; After the configuration successful these default configuration data are duplicated as network management configuration data and current configuration data;
Step 3, the user can be configured OLT or ONU from webmaster according to actual needs, and issues relevant configuration data;
Step 4, OLT resets or during deexcitation, removes the current configuration data that OLT level and this OLT go up all ONU levels;
Step 5, OLT reset finish or deexcitation after when activating again again, with the configuration of the OLT level in network management configuration data data configuration OLT, from webmaster, OLT is configured according to the actual needs by the user, and issues relevant configuration data;
Step 6 after ONU succeeds in registration, with ONU level configuration data configuration ONU in the network management configuration data, is configured ONU from webmaster according to the actual needs by the user, and issues relevant configuration data;
Step 7 after ONU goes registration, is removed ONU level current configuration data.
2, EPON network element device method of automatic configuration according to claim 1 is characterized in that, in described step 3, described network element device OLT or ONU comprise the following step to the processing procedure of webmaster down distributing configuration data:
Earlier the described configuration data that issues is saved to the network management configuration data;
Judging whether then can operational hardware, if can not operational hardware, then directly returns, and configuration finishes; Otherwise operational hardware;
Judge whether success of hardware operation result, if success then the network management configuration data are saved in current configuration data, otherwise directly return, configuration finishes.
3, EPON network element device method of automatic configuration according to claim 2 is characterized in that, before the described configuration data that issues is saved to the step of network management configuration data, also comprises step:
Legitimacy to the described configuration data that issues checks, if not by directly return, configuration finishes, otherwise then the described configuration data that issues is saved to the network management configuration data.
4, EPON network element device method of automatic configuration according to claim 3 is characterized in that, in step 5, the layoutprocedure when OLT activates comprises the steps:
According to network management configuration data activation OLT, if the success according to OLT level network management configuration data manipulation OLT, if the failure according to default configuration data activation OLT;
If activate the OLT success, then continue from webmaster, OLT to be configured according to the actual needs by the user, and to issue relevant configuration data with OLT level network management configuration data configuration OLT.
5, EPON network element device method of automatic configuration according to claim 4 is characterized in that, if also fail according to default configuration data activation OLT, then sends alarm to webmaster.
6, EPON network element device method of automatic configuration according to claim 4 is characterized in that, in step 6, also comprises step before described ONU succeeds in registration:
Check and preserve the ONU log-on message;
ONU is authenticated.
7, EPON network element device method of automatic configuration according to claim 6 is characterized in that, in step 7, removes ONU level current configuration data and also comprises the steps: before
Deexcitation OLT;
Operational hardware is removed the configuration data relevant with this ONU.
8, EPON network element device method of automatic configuration according to claim 7 is characterized in that, comprises also after the described step 7 that one recovers the treatment step of network element device default configuration operation, and it comprises:
Remove ONU level current configuration data;
ONU level default data is copied to corresponding ONU level network management configuration data;
Press OLT deexcitation arrangements of steps;
Press OLT and activate step operation OLT, with current network management configuration data activation and dispose OLT;
Press ONU registration step operation ONU, after ONU re-registers successfully, reconfigure ONU with current network management configuration data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510041196XA CN100426741C (en) | 2005-07-22 | 2005-07-22 | Automatic configurating method for EPON net element device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510041196XA CN100426741C (en) | 2005-07-22 | 2005-07-22 | Automatic configurating method for EPON net element device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1901464A CN1901464A (en) | 2007-01-24 |
| CN100426741C true CN100426741C (en) | 2008-10-15 |
Family
ID=37657215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510041196XA Expired - Fee Related CN100426741C (en) | 2005-07-22 | 2005-07-22 | Automatic configurating method for EPON net element device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100426741C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011120308A1 (en) * | 2010-03-31 | 2011-10-06 | 烽火通信科技股份有限公司 | Registration method of optical network unit in gigabit passive optical network system |
| CN105323102A (en) * | 2014-07-31 | 2016-02-10 | 中兴通讯股份有限公司 | Link polling method, link polling device and link polling system |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247258B (en) | 2007-02-12 | 2011-02-09 | 华为技术有限公司 | Service distribution method and system |
| CN101034938B (en) * | 2007-04-05 | 2010-12-08 | 中兴通讯股份有限公司 | Configuration method for remote management IP address of the ONU in the EPON network |
| CN101123537B (en) * | 2007-09-25 | 2010-06-02 | 杭州华三通信技术有限公司 | Method, system and management server for configuring coaxial cable carrier Ethernet terminal |
| CN101150441B (en) * | 2007-10-16 | 2011-08-10 | 中兴通讯股份有限公司 | A system and method for automatic single board connection configuration in network management |
| CN101448184B (en) * | 2009-01-04 | 2011-05-04 | 烽火通信科技股份有限公司 | A method for realizing automatic work unit in EPON and system thereof |
| CN102780526B (en) * | 2012-01-05 | 2015-04-15 | 中国联合网络通信集团有限公司 | Configuration method for optical network unit, optical network unit and optical line terminal |
| CN102638462B (en) * | 2012-03-28 | 2015-02-25 | 中国联合网络通信集团有限公司 | Network registering method and device |
| CN102752675B (en) * | 2012-07-13 | 2015-07-01 | 烽火通信科技股份有限公司 | Method for realizing ONU (Optical Network Unit) service automatic opening on OLT (Optical Line Terminal) equipment |
| CN102801477A (en) * | 2012-08-20 | 2012-11-28 | 深圳市共进电子股份有限公司 | Method for automatically accessing communication equipment on optical network unit |
| CN103108261B (en) * | 2013-02-06 | 2016-11-16 | 上海电信工程有限公司 | The activating method of EPON access device |
| CN103428027B (en) * | 2013-07-30 | 2016-09-21 | 广东东研网络科技股份有限公司 | Equipment text method for the multi-functional support of optical line terminal |
| CN104954171A (en) * | 2015-05-15 | 2015-09-30 | 上海斐讯数据通信技术有限公司 | Optical network unit alarm configuration sending down system and optical network unit alarm configuration sending down method based on single linked list |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020173332A1 (en) * | 2001-05-16 | 2002-11-21 | Mitsubishi Denki Kabushiki Kaisha | Optical communication system with dynamic bandwidth allocation |
| CN1383276A (en) * | 2001-04-25 | 2002-12-04 | 华为技术有限公司 | Method for measuring distance in passive optical ATM network |
| US20030103522A1 (en) * | 2001-12-05 | 2003-06-05 | Mitsubishi Denki Kabushiki Kaisha | Packet communication system, a packet communication method and a computer-readable storage medium having a computer program for a communication method |
| CN1564487A (en) * | 2004-04-15 | 2005-01-12 | 上海交通大学 | Passive optical network using carrier intercepting multi-address access/conflict detection protocol |
-
2005
- 2005-07-22 CN CNB200510041196XA patent/CN100426741C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383276A (en) * | 2001-04-25 | 2002-12-04 | 华为技术有限公司 | Method for measuring distance in passive optical ATM network |
| US20020173332A1 (en) * | 2001-05-16 | 2002-11-21 | Mitsubishi Denki Kabushiki Kaisha | Optical communication system with dynamic bandwidth allocation |
| US20030103522A1 (en) * | 2001-12-05 | 2003-06-05 | Mitsubishi Denki Kabushiki Kaisha | Packet communication system, a packet communication method and a computer-readable storage medium having a computer program for a communication method |
| CN1564487A (en) * | 2004-04-15 | 2005-01-12 | 上海交通大学 | Passive optical network using carrier intercepting multi-address access/conflict detection protocol |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011120308A1 (en) * | 2010-03-31 | 2011-10-06 | 烽火通信科技股份有限公司 | Registration method of optical network unit in gigabit passive optical network system |
| CN105323102A (en) * | 2014-07-31 | 2016-02-10 | 中兴通讯股份有限公司 | Link polling method, link polling device and link polling system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1901464A (en) | 2007-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100426741C (en) | Automatic configurating method for EPON net element device | |
| US7272846B2 (en) | System and method for detecting and reporting cable modems with duplicate media access control addresses | |
| US8707339B2 (en) | System and method for detecting hacked modems | |
| US10581849B2 (en) | Data packet transmission method, data packet authentication method, and server thereof | |
| CN105262738A (en) | Router and method for preventing ARP attacks thereof | |
| CN101222354A (en) | Intelligent terminal management method | |
| CN106657429A (en) | Equipment identifier generating method and device | |
| CN104202365B (en) | Method for clustered intelligent gateway platform for deploying expanded business application | |
| CN101873298A (en) | Registration method, terminal, server and system | |
| CN101299674B (en) | Method, system and management platform for implementing terminal identification | |
| WO2016110150A1 (en) | Method and device for controlling access capability of illegal manufacturer onu in gpon system | |
| CN104618522B (en) | The method and Ethernet access equipment that IP address of terminal automatically updates | |
| WO2015088324A2 (en) | System and method for managing a faulty node in a distributed computing system | |
| CN109104475A (en) | Connect restoration methods, apparatus and system | |
| US20120047583A1 (en) | Cable fraud detection system | |
| CN104378456A (en) | Allocation optimization method for IP addresses in local area network | |
| CN112398918A (en) | Data sharing method, device and system for across alliance chain and storage medium | |
| CN112910854A (en) | Method and device for safe operation and maintenance of Internet of things, terminal equipment and storage medium | |
| CN107911764A (en) | A kind of method for accelerating intensity EPON ONU service management | |
| CN102394770A (en) | Off-line configuration method for network equipment based on simple network management protocol (SNMP) | |
| CN106452860A (en) | Device deployment method and device | |
| CN105306407A (en) | User account number login method and device | |
| CN101409642B (en) | Data service system and administrative operation method | |
| CN101267340B (en) | A SN theft prevention authentication method | |
| US10402282B1 (en) | Assisted device recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20150722 |
|
| EXPY | Termination of patent right or utility model |