CN101212723B - Cluster network system and failure attenuation method on the basis of the network system - Google Patents
Cluster network system and failure attenuation method on the basis of the network system Download PDFInfo
- Publication number
- CN101212723B CN101212723B CN2006101697102A CN200610169710A CN101212723B CN 101212723 B CN101212723 B CN 101212723B CN 2006101697102 A CN2006101697102 A CN 2006101697102A CN 200610169710 A CN200610169710 A CN 200610169710A CN 101212723 B CN101212723 B CN 101212723B
- Authority
- CN
- China
- Prior art keywords
- cluster
- wireless
- processing unit
- wireless node
- service
- 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.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a cluster network system which comprises cluster wireless nodes, a cluster location register which is connected with all the cluster wireless nodes and mobile stations which belong to the corresponding cluster wireless nodes; The cluster wireless nodes comprise a service processing unit and a wireless processing unit; the wireless processing unit comprises a service processing subunit which can dispose cluster call service the same as the service processing unit. Based on the system, a fail-soft working method comprises the following steps: the cluster wireless nodes are monitored, a fail-soft mode is started by the system and a cluster terminal is informed when a fault of the service processing unit of the wireless nodes occurs, the mobile stations are determined whether in a covering and overlapping area which is covered by and among the cluster wireless nodes, if not, the cluster call service started by the cluster terminal under the fail-soft mode is disposed by the service processing subunit of the wireless processing unit of the wireless nodes. The cluster network system can easily realize the fail-soft working method of a base station and can guarantee that all wireless users can converse normally.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of cluster network system and based on the fail soft method of work of this network system.
Background technology
Important cluster user is to provide professional highly reliably to one of basic demand of digital cluster system.The fail soft working method is a kind of special working method that designs at important industry cluster user, can resist control appliance inefficacy that natural calamity or human factor cause, transmission failure etc., under the situation of, management of base station uncontrollable, still can provide basic cluster service for the user at network side.
Under the normal condition, when working with trunking mode, the operation of base station is by network controls.Can not normally control base station when work when base station monitors to network side, then change the fail soft working method automatically over to.Fail soft is meant in the transmission link between the base station sub-system of group system and the interruption of the transmission link between the switching subsystem or base station transceiver and the base station controller and has no progeny that service request from user in this base station range still can be handled in the base station.Under the fail soft state, can carry out interconnect call calling, individual calling, group calling and broadcast ﹠ call between the user in this base station range.By broadcast system message, travelling carriage current area base station enters the fail soft working method in the notifying cell.After travelling carriage in this base station range is received system message, change the fail soft mode of operation simultaneously over to, and register to current base station, thereby make the base station obtain the user profile of in this zone, working by special register flow path.Can normally control base station when operation when base station monitors again to network side, the base station will change the cluster working method automatically over to, and broadcast system message is notified the travelling carriage conversion work mode in this scope simultaneously.
To cluster user, identical under the operation under the fail soft working method and cluster working method, can use baseset group business such as group calling/broadcast ﹠ call, point to point call, individual call, lag enter, supplementary services such as speaker identification demonstration, PoC (PTT, Push To Talk) priority.
For realizing the demand, base station sub-system needs built-in call-handling capability, after base station and switching subsystem are out of touch, take in this zone the Client-initiated call business and handle, aloft the signaling procedure on the interface should be identical with the signaling procedure under the system normal condition.After the base station enters the fail soft state, adopt special system message to notify this base station range interior portable terminal, portable terminal is initiated special position according to this system message and is upgraded, so that the user profile of this base station range can be collected in the base station.Withdraw from the fail soft state when the base station, need notify portable terminal by system message equally.This function reduces the system break time for improving system reliability, does not consider to be in this base station range calling associated user in addition.
Below in conjunction with existing cluster working method of description of drawings and fail soft working method:
One, cluster working method:
As shown in Figure 1, under the cluster working method, the calling between the user is to carry out under the centralized control of switching network, and its call business flows as shown in the figure, and two related travelling carriages of call business are in respectively under the different base stations control.
Two, fail soft working method:
As shown in Figure 2, for a certain reason, the link down between base station and switching network, the system start-up fail soft function, the embedded in base station call-handling capability, Business Stream terminates in inside of base station.
As from the foregoing, also there is following shortcoming in above-mentioned fail soft working method of the prior art:
1, owing to the embedded in base station call-handling capability, so call handling capacity is restricted;
2, can't handle the calling of terminal room outside this base station range.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of cluster network system, is easy to realize the fail soft working method of base station.
Another technical problem that the present invention will solve is to provide a kind of fail soft method of work based on the cluster network system, can guarantee the normal talking between whole wireless users.
The technical scheme that realizes the object of the invention is as follows:
A kind of cluster network system comprises several interconnective cluster wireless nodes, the cluster position register that is connected with all cluster wireless nodes and the travelling carriage that belongs to corresponding cluster wireless node; Described cluster wireless node comprises Service Processing Unit and the wireless processing unit that is used for the Processing Cluster call business; Described wireless processing unit further comprises the Business Processing subelement, this Business Processing subelement with described Service Processing Unit is the same can the Processing Cluster call business.
Preferably, also comprise judging unit, when the cluster wireless node breaks down, be used to differentiate travelling carriage and be that to be in the internodal wireless coverage crossover region of cluster wireless also be non-covering crossover region.
Preferably, when the Service Processing Unit of a cluster wireless node breaks down, if travelling carriage is in the covering crossover region, then described travelling carriage is initiated registration to other cluster wireless nodes that cover this crossover region, the trunked call service of under normal mode, initiating then by the Service Processing Unit Processing Cluster terminal of the cluster wireless node of new registration, if travelling carriage is in non-covering crossover region, system start-up fail soft function then, the trunked call service of under fail soft mode, initiating by the Business Processing subelement Processing Cluster terminal in the wireless processing unit of described cluster wireless node.
Preferably, described Service Processing Unit is used to realize start-up logging, position renewal and switching, calling and signaling process, scheduling and medium control, safe and secret, VPN and charging and network management.
Preferably, described wireless processing unit is used to realize wireless access, allocation of radio resources and management.
Preferably, the information of described cluster position register-stored cluster user realizes the mobile management and the call treatment of cluster user in order to cooperate the cluster wireless node.
Preferably, the cluster user information of described cluster position register-stored comprises: CAMEL-Subscription-Information, position and state information, group information, VPN information that the user is basic, and authorization data.
Simultaneously, the present invention also provides a kind of fail soft method of work based on the aforementioned network system, comprising:
A, monitoring cluster wireless node, system start-up fail soft mode and notify colony terminal when the Service Processing Unit of radio node breaks down;
B, judge whether travelling carriage is in the covering crossover region of wireless coverage between the cluster wireless node;
C, if not, then the Business Processing subelement Processing Cluster terminal of the wireless processing unit of the described radio node trunked call service of under fail soft mode, initiating.
Preferably, if the judged result of step B is the covering crossover region that travelling carriage is in wireless coverage between the cluster wireless node, then described travelling carriage is initiated registration to other cluster wireless nodes that cover this crossover region, then the trunked call service of being initiated under normal mode by the Service Processing Unit Processing Cluster terminal of the cluster wireless node of new registration.
Compared with prior art, the present invention has following beneficial effect:
Full scatternet framework provided by the invention is single station control model, the cluster network of the centralized control of comparing type, and its cluster wireless node status in network is an equality, so this network architecture is easier to the realization of fail soft function.Its reason is as follows:
1, exists between radio node under the crossover region situation of wireless coverage, when travelling carriage is in the covering crossover region, a radio node breaks down, and travelling carriage can be initiated to another registration of adjacent radio node, the successfully group service that still can be correlated with after the registration.
2, under the crossover region situation that does not have wireless coverage between radio node, when the cluster wireless node under the travelling carriage breaks down, the trunked call service that can under fail soft mode, initiate by the built-in Business Processing subelement Processing Cluster terminal of the wireless processing unit of cluster wireless intranodal.
Like this, by distributed network framework provided by the present invention, be easier to realize the fail soft working method at single station.In addition, under the situation that network breaks down, can guarantee the normal talking between whole wireless terminals.
Below in conjunction with the drawings and specific embodiments the present invention is further described.
Description of drawings
Fig. 1 is a prior art cluster working method schematic diagram;
Fig. 2 is a prior art fail soft working method schematic diagram;
Fig. 3 is that the present invention disperses cluster network system architecture schematic diagram entirely;
Fig. 4 is that the user that the present invention is in two radio node crossover regions heavily registers schematic diagram;
Fig. 5 is that fail soft work of the present invention starts flow chart;
Fig. 6 is the fail soft schematic diagram under the same radio node of the present invention;
Fig. 7 is the trunked call process schematic diagram that the present invention handles radio node shown in Figure 6 inside;
Fig. 8 is that the present invention strides the fail soft work schematic diagram under the radio node;
Fig. 9 is that the present invention handles trunked call process schematic diagram of striding between radio node shown in Figure 8.
Embodiment
As shown in Figure 3, disperse the cluster network system architecture diagram entirely for the present invention.This network comprises several interconnective cluster wireless nodes, the cluster position register that is connected with all cluster wireless nodes and several travelling carriages that is connected with corresponding cluster wireless node.
The cluster wireless node is the core network element of digital cluster system among the figure, and on the logical process function, this network element node has following functional unit:
1, Service Processing Unit: be responsible for start-up logging, position renewal and switching, voice and data call, right of speech management, traffic queuing and distribution, scheduling controlling, signaling process, resource management, medium control, safe and secret, VPN (VPN, Virtual Private Network), charging and network management etc.
2, wireless processing unit: be responsible for wireless access, allocation of radio resources and management, wireless measurement, radio frequency etc.This wireless processing unit is built-in with the Business Processing subelement, is used for the trunked call service that the Processing Cluster terminal is initiated under fail soft mode, and its function is identical with Service Processing Unit.
Comprise judging unit in addition, when the cluster wireless node breaks down, be used to differentiate this travelling carriage and be between the cluster wireless node wireless coverage crossover region or be in non-covering crossover region.When the Service Processing Unit of a cluster wireless node breaks down, if travelling carriage is in the covering crossover region, then described travelling carriage is initiated registration, the trunked call service of being initiated by this adjacent cluster wireless node processing colony terminal then to adjacent cluster wireless node under normal mode; If travelling carriage is in non-covering crossover region, the trunked call service of under fail soft mode, initiating then by the Business Processing subelement Processing Cluster terminal in the wireless processing unit of this cluster wireless node.
This network can contrast the public network network architecture and be described, and wherein: Service Processing Unit is realized similar core net function, and wireless processing unit is realized similar base station controller and base station functions.
In addition, the cluster position register is for realizing that clustering functionality has increased corresponding database newly.It has following function: basic CAMEL-Subscription-Information, PTT service profile, positional information, state information, group information, the VPN information of storage cluster user, authorization data is provided, cooperates the cluster wireless node to realize the mobile management and the call-handling capability of cluster user.
As shown in Figure 5, for the present invention is based on the fail soft method of work flow chart of shown in Figure 3 full dispersion cluster network system.Specifically may further comprise the steps:
Full scatternet framework is single station control model, the cluster network of the centralized control of comparing type, and its cluster wireless node status in network is an equality, so this network architecture is easier to the realization of fail soft function.This is because there is the crossover region of wireless coverage between radio node, when travelling carriage is in the covering crossover region, a radio node breaks down, and travelling carriage can be initiated to another radio node registration, the successfully group service that still can be correlated with after the registration of covering this crossover region.As shown in Figure 4, the heavy registration process schematic diagram of user for being in two radio node crossover regions.
Below, travelling carriage is positioned at the fail soft that does not cover under the overlapping situation is described in detail.
One, the implementation procedure of fail soft function under the same cluster wireless node
As shown in Figure 6, be the fail soft schematic diagram under the same cluster wireless node.The Service Processing Unit of the residing cluster wireless node of travelling carriage breaks down, the system start-up fail soft function, the wireless processing unit of system is built-in Business Processing subelement, this Business Processing subelement equally can the Processing Cluster call business with professional processing unit, finish the caller handler process, call out routing procedure and called processing procedure.Figure below is described the trunked call of handling this radio node inside.
As shown in Figure 7, for handling the trunked call process schematic diagram of radio node shown in Figure 6 inside.Detailed process is as follows:
1, for a certain reason, the Service Processing Unit in the cluster wireless node 1 breaks down, and cluster wireless node 1 enters the fail soft state, and wireless processing unit notifies UE1, UE2 to enter the fail soft state by broadcast;
2, the calling subscriber UE1 request of making a call is sent to the affiliated cluster wireless node 1 of calling subscriber.Wireless processing unit Business Processing subelement partly by this radio node carries out caller handler;
3,1 couple of UE1 of cluster wireless node goes out calling check, finds that the called subscriber also is positioned at cluster wireless node 1 behind the calling routing inquiry, and calling check sends the call setup indication by back cluster wireless node 1 to the called subscriber;
4, cluster wireless node 1 is received called ALERTING message, application sound resource, and to caller transmission ring indication;
5, cluster wireless node 1 detects called subscriber's off-hook, subscriber call;
6, caller sends to connect and replys to cluster wireless node 1, and the cluster wireless node 1 couple of calling and called user continue;
7, after the cluster wireless node was received message, the resolving called number found that called UE 2 is positioned at the control range of this radio node, sends setup requests to UE2;
8, called UE begins ring, sends the ring indication to cluster wireless node 1;
9, called subscriber's off-hook, UE send to cluster wireless node 1 and connect indication.
Two, stride the implementation procedure of fail soft function between the cluster wireless node
As shown in Figure 8, for striding the fail soft work schematic diagram under the cluster wireless node.The Service Processing Unit of the residing cluster wireless node of travelling carriage breaks down, the system start-up fail soft function, the wireless processing unit of system is built-in Business Processing subelement, this Business Processing subelement equally can the Processing Cluster call business with professional processing unit, finish the caller handler process, call out routing procedure and called processing procedure.Under the fail soft mode of operation, wireless processing unit is responsible for safeguarding the signaling process (comprising mobile management and call treatment signaling) of striding between clustered node, and, therefore can handle and stride the internodal calling of cluster wireless because the built-in Business Processing subelement of wireless processing unit has the route processing capacity of calling.
As shown in Figure 9, for handling trunked call process schematic diagram of striding between radio node shown in Figure 8.Detailed process is as follows:
1, for a certain reason, the Service Processing Unit in the cluster wireless node 1 breaks down, and cluster wireless node 1 enters the fail soft state, and wireless processing unit enters the fail soft state by broadcast notice UE1;
2, the calling subscriber UE1 request of making a call is sent to the cluster wireless node 1 under the calling subscriber, carries out caller handler by the Business Processing subelement of the wireless processing unit part of this radio node;
3,1 couple of UE1 of cluster wireless node goes out calling check, check by after begin called subscriber's routing procedure, the residing cluster wireless node 2 of inquiry called subscriber UE2;
4,1 initiation of cluster wireless node is to the call request of called subscriber place cluster wireless node 2;
5, cluster wireless node 2 sends setup requests to called UE 2;
6, UE2 confirms setup requests;
7, called to the 2 transmission ring indications of cluster wireless node, cluster wireless node 2 is with address response message notice cluster wireless node 1;
8, cluster wireless node 1 is with ring indication notice UE1;
9, called UE 2 off-hooks are to connect indication notice radio node 2.Radio node 2 is finished message informing cluster wireless node 1 with the address;
10, after cluster wireless node 1 is received message, send the connection indication to calling UE, caller is confirmed.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (8)
1. a cluster network system is characterized in that: comprise several interconnective cluster wireless nodes, the cluster position register that is connected with all cluster wireless nodes and the travelling carriage that belongs to corresponding cluster wireless node; Described cluster wireless node comprises Service Processing Unit and the wireless processing unit that is used for the Processing Cluster call business; Described wireless processing unit further comprises the Business Processing subelement, this Business Processing subelement with described Service Processing Unit is the same can the Processing Cluster call business;
Also comprise judging unit, when the cluster wireless node breaks down, be used to differentiate travelling carriage and be that to be in the internodal wireless coverage crossover region of cluster wireless also be non-covering crossover region.
2. network system as claimed in claim 1, it is characterized in that, when the Service Processing Unit of a cluster wireless node breaks down, if travelling carriage is in the covering crossover region, then described travelling carriage is initiated registration to other cluster wireless nodes that cover this crossover region, the trunked call service of under normal mode, initiating then by the Service Processing Unit Processing Cluster terminal of the cluster wireless node of new registration, if travelling carriage is in non-covering crossover region, system start-up fail soft function then, the trunked call service of under fail soft mode, initiating by the Business Processing subelement Processing Cluster terminal in the wireless processing unit of described cluster wireless node.
3. network system as claimed in claim 1 is characterized in that: described Service Processing Unit is used to realize start-up logging, position renewal and switching, calling and signaling process, scheduling and medium control, safe and secret, VPN and charging and network management.
4. network system as claimed in claim 1 is characterized in that: described wireless processing unit is used to realize wireless access, allocation of radio resources and management.
5. network system as claimed in claim 1 is characterized in that: the information of described cluster position register-stored cluster user, realize the mobile management and the call treatment of cluster user in order to cooperate the cluster wireless node.
6. network system as claimed in claim 5 is characterized in that: the cluster user information of described cluster position register-stored comprises: CAMEL-Subscription-Information, position and state information, group information, VPN information that the user is basic, and authorization data.
7. the fail soft method of work based on the described network system of claim 1 is characterized in that, comprising:
A, monitoring cluster wireless node, system start-up fail soft mode and notify colony terminal when the Service Processing Unit of cluster wireless node breaks down;
B, judge whether travelling carriage is in the covering crossover region of wireless coverage between the cluster wireless node;
C, if not, the trunked call service that the Business Processing subelement Processing Cluster terminal of the wireless processing unit of then described cluster wireless node is initiated under fail soft mode.
8. method as claimed in claim 7, it is characterized in that, if the judged result of step B is the covering crossover region that travelling carriage is in wireless coverage between the cluster wireless node, then described travelling carriage is initiated registration to other cluster wireless nodes that cover this crossover region, then the trunked call service of being initiated under normal mode by the Service Processing Unit Processing Cluster terminal of the cluster wireless node of new registration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101697102A CN101212723B (en) | 2006-12-27 | 2006-12-27 | Cluster network system and failure attenuation method on the basis of the network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101697102A CN101212723B (en) | 2006-12-27 | 2006-12-27 | Cluster network system and failure attenuation method on the basis of the network system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101212723A CN101212723A (en) | 2008-07-02 |
| CN101212723B true CN101212723B (en) | 2011-03-09 |
Family
ID=39612315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101697102A Active CN101212723B (en) | 2006-12-27 | 2006-12-27 | Cluster network system and failure attenuation method on the basis of the network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101212723B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348222B (en) * | 2010-08-03 | 2014-12-10 | 中兴通讯股份有限公司 | Fault weakening method and base station based on digital cluster system |
| CN102378125A (en) * | 2010-08-05 | 2012-03-14 | 中兴通讯股份有限公司 | Trunking communication system and cooperation processing fault weakening method |
| CN103476090B (en) * | 2012-06-08 | 2017-12-29 | 中兴通讯股份有限公司 | A kind of fail soft method and device of group system |
| CN103945432B (en) * | 2013-01-18 | 2017-08-29 | 中国普天信息产业股份有限公司 | The operation mode conversion method of group system base station |
| CN103139066B (en) * | 2013-01-29 | 2017-04-05 | 大唐移动通信设备有限公司 | A kind of changing method of resource, main control device and node device |
| CN104244297B (en) * | 2013-06-14 | 2018-08-24 | 中国普天信息产业股份有限公司 | A kind of broadband clustering fault reduction communication means and base station based on TD-LTE |
| CN104378742A (en) * | 2013-08-15 | 2015-02-25 | 中兴通讯股份有限公司 | Call service achieving method and device and indicating information issuing method and device |
| CN106303988B (en) * | 2015-05-13 | 2019-09-06 | 普天信息技术有限公司 | Priority management method under base station fault reduction state |
| CN107454607A (en) * | 2016-05-30 | 2017-12-08 | 北京信威通信技术股份有限公司 | The implementation method and device of a kind of fail soft mode |
| CN107635285A (en) * | 2016-07-12 | 2018-01-26 | 北京信威通信技术股份有限公司 | A kind of method and device for establishing call |
| CN106792599B (en) * | 2016-12-05 | 2020-12-18 | 山东闻远通信技术有限公司 | Single call establishment method and system in distributed fault weakening cluster communication |
| WO2020124576A1 (en) * | 2018-12-21 | 2020-06-25 | 海能达通信股份有限公司 | Notification method for system information, base station device, and computer storage device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002576A1 (en) * | 2004-07-06 | 2006-01-12 | Zte Corporation | Digital trunked communication network which supports roaming and method thereof |
| CN1835609A (en) * | 2005-03-17 | 2006-09-20 | 华为技术有限公司 | Fault reduction realizing method of cluster net communication |
-
2006
- 2006-12-27 CN CN2006101697102A patent/CN101212723B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002576A1 (en) * | 2004-07-06 | 2006-01-12 | Zte Corporation | Digital trunked communication network which supports roaming and method thereof |
| CN1835609A (en) * | 2005-03-17 | 2006-09-20 | 华为技术有限公司 | Fault reduction realizing method of cluster net communication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101212723A (en) | 2008-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101212723B (en) | Cluster network system and failure attenuation method on the basis of the network system | |
| CN102821358B (en) | A kind of implementation method of group-calling service | |
| CN103202040B (en) | The communication system of MBMS is provided via unicast or broadcast/multicast | |
| EP1748660B1 (en) | A ptt service system of method thereof | |
| CN100396123C (en) | Fault reduction realizing method of cluster net communication | |
| CN103024684B (en) | A kind of implementation method of single call service | |
| JP5484581B2 (en) | Emergency service user calling method and calling system | |
| CN100527655C (en) | A method for implementing cluster service in CDMA system | |
| WO2000069209A1 (en) | Methods, systems, and terminals for assigning control channel time slots for group and individual pages | |
| CN100488316C (en) | Method for realizing service priority in CDMA cluster system | |
| CN103546874B (en) | A kind of method and system of call management | |
| CN101707745B (en) | Method, system and device for selecting call groups | |
| CN101106827A (en) | An error tolerance method for offline calling user in digital cluster system | |
| JP2001275145A (en) | Dynamic logic coverage area for wireless base station | |
| WO2007025409A1 (en) | A method for realizing mobility limitation based on service in a mobile communication system | |
| CN103582122A (en) | Group call establishment method based on digital trunked communication system, network side equipment | |
| CN100488269C (en) | Call access method in digital cluster system | |
| CN101237626A (en) | Processing method and processing system for multiple crossed services | |
| CN103139718B (en) | The method of a kind of PoC time delay optimization process and device | |
| CN100461901C (en) | Method for realizing CDMA traditional packet digital calling talk process | |
| CN101242632B (en) | A method and base station device for allocating dedicated channel | |
| CN101316394B (en) | Method for call conversation right scheduling and speech forwarding control | |
| CN101790246B (en) | Method, device and system for local exchange | |
| CN101094134A (en) | Method for releasing communication service of cluster | |
| CN101472222B (en) | Method, device and system for managing group calling business emergency call |
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 |