CN100407842C - Method for monitoring resource - Google Patents
Method for monitoring resource Download PDFInfo
- Publication number
- CN100407842C CN100407842C CN2006100074000A CN200610007400A CN100407842C CN 100407842 C CN100407842 C CN 100407842C CN 2006100074000 A CN2006100074000 A CN 2006100074000A CN 200610007400 A CN200610007400 A CN 200610007400A CN 100407842 C CN100407842 C CN 100407842C
- Authority
- CN
- China
- Prior art keywords
- tunnel
- current
- resource
- business
- carrying
- 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
- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 238000011084 recovery Methods 0.000 claims description 7
- 230000011218 segmentation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention discloses a method for monitoring resources, which is provided with a restricted calling threshold. The method comprises following steps: a. after the service with bearing establishment success and bearing dismantlement success, total occupying resources of a current IP channel are calculated; whether the total occupying resources of the current IP channel exceed the restricted calling threshold is judged, if does, the IP channel is determined in a congested state; if not, the current IP channel is determined in a non-congested state. By using the method provided by the present invention, a media gateway can monitor the bearing resources thereof, so a network service provider can obtain the congestion state of the bearing resource in time so as to adjust the system according to the congestion state of the resources. Furthermore, when the congestion happens in the IP channel, the present invention carries out admission control to the IP channel with congestion so as to ensure the customer service quality and to make operators subdivide markets.
Description
Technical field
The present invention relates to a kind of method of monitoring resource.
Background technology
Third generation partner program (3GPP) protocol specification is organized to set up by 3GPP, and has described the correlation technique standard of mobile communication technology in the third generation conventional wireless communication systems (UMTS).In present 3GPP protocol specification, it all is the mode that adopts First come first served that the circuit resource of mobile switching centre (MSC) server distributes, but, even obtain the business of MSC server logic circuit earlier, in the inner congested situation of bearing resource that still can run into of media gateway (MGW).This is because may there be the situation of similar statistic multiplexing in the IP bandwidth in the MGW, causes when logical circuit is enough, and the bandwidth on the logical circuit is not enough, causes the bearing resource on the logical circuit congested, makes the failures in resource application of high-priority users.With regard to present 3GPP protocol specification, do not have scheme, and then cause the Internet Service Provider can't guarantee high priority client's service quality at bearing resource monitoring in the MGW, also can't make the Internet Service Provider can realize the segmentation in market simultaneously.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of monitoring resource, uses this method and can realize monitoring to the bearing resource congestion situation.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of monitoring resource is provided with limit and exhales threshold value and classification thresholds, and this method may further comprise the steps:
A, after existing carrying to set up successfully or carry the dismounting successful service, the computing service current IP channel total occupying resource;
B, judge whether current IP channel total occupying resource has exceeded limit and exhaled threshold value, if determine that then IP tunnel is a congestion state, execution in step C; Otherwise, determine that current IP channel is non-congestion state, finish current monitoring flow process;
C, deduct limit with the resource that takies on the current IP channel and exhale threshold value, the numerical value that relatively obtains and the classification thresholds of setting are determined the congestion level of current IP channel.
Wherein, in the steps A, described computing service current IP channel total occupying resource is: when existing carrying to set up successful service, the resource that current business is taken is accumulated in always taking on the resource of professional corresponding IP tunnel; When existing carrying to remove successful service, deduct the current resource that takies of business on the resource always taking of the corresponding IP tunnel of professional institute.
In addition, when existing carrying to remove successful service, further comprising before steps A and the B: judge whether professional shared IP tunnel had been congestion state before business is not removed, if, execution in step B; Otherwise, determine that current IP channel is non-congestion state.
Wherein, among the step B, do not exceed limit when exhaling threshold value, then determine the congested recovery of current IP channel to finish current monitoring flow process in current IP channel total occupying resource.
Wherein, the resource that takies of described business is: bandwidth, logic chain way, cpu resource, system message bag number or processing module control table occupancy.
In addition, MGW receives professional when setting up bearing request message, and this method further comprises:
E1, judge whether the bearing resource of the shared IP tunnel of current business is congested, if congested, the foundation carrying request of refusal current business; Otherwise, normally carry out follow-up carrying and set up flow process.
In addition, this method further comprises: when definite IP tunnel is congestion state, start the access control at this IP tunnel; When definite IP tunnel was gathered around the base recovery, cancellation was at the access control of this IP tunnel;
MGW receives professional when setting up bearing request message, and this method further comprises:
E2, judge whether the shared IP tunnel of current business has started access control,, then refuse the foundation carrying request of current business if start; Otherwise, normally carry out follow-up carrying and set up flow process.
In addition, when MGW receives professionally when setting up bearing request message, this method further comprises:
E3, judge whether the bearing resource of the shared IP tunnel of current business is congested, if congested, execution in step F3; Otherwise, normally carry out follow-up carrying and set up flow process;
F3, the congestion level that obtains professional shared IP tunnel and the priority of current business, whether the congestion level of judging bearing resource is limit the business of this priority and is exhaled, if then refuse the foundation carrying of current business and ask; Otherwise, normally carry out follow-up carrying and set up flow process.
In addition, when IP tunnel is in congestion state, then start access control at this IP tunnel; When the congested recovery of IP tunnel, then cancel access control at this IP tunnel; When MGW receives professionally when setting up bearing request message, this method further comprises:
E4, judge the access control that whether started of the shared IP tunnel of current business, if start execution in step F4; Otherwise, normally carry out follow-up carrying and set up flow process;
F4, the congestion level that obtains the shared IP tunnel of current business and the priority of current business, whether the congestion level of judging bearing resource is limit the business of this priority and is exhaled, if then refuse the foundation carrying of current business and ask; Otherwise, normally carry out follow-up carrying and set up flow process.
The method of a kind of monitoring resource provided by the present invention when existing carrying to set up successfully or carry the dismounting successful service in the MGW, is upgraded at the resource that takies of the pairing IP tunnel of this business, judges and obtain the congestion state of IP tunnel.By using method proposed by the invention, realized the monitoring of MGW to self bearing resource, make the Internet Service Provider can in time obtain the congestion situation of bearing resource, and then can adjust system according to the congestion condition of resource.Further, the present invention has guaranteed the customer service quality by take place to carry out access control to congested IP tunnel takes place when congested at IP tunnel, makes operator can realize the segmentation in market.
Description of drawings
Fig. 1 is the flow chart of monitoring resource among the present invention;
Fig. 2 is the flow chart of access control among the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
In embodiments of the present invention, being example, the monitoring of bearing resource among the MGW is described the bandwidth on the IP tunnel among the MGW.Here, described IP tunnel is: the source IP address of setting up for bearer service from local MGW IP the purpose IP address in the purpose MGW connects.At this, need limit to be set and exhales threshold value according to the bandwidth that can carry on the IP tunnel, when the bandwidth of carrying on the IP tunnel exceeds limit and exhales threshold value, think that then this IP tunnel has been in congestion state.Limit exhales the setting of threshold value both can be: exhale threshold value for each IP tunnel is provided with identical limit, also can be: each IP tunnel be provided with different limits and exhales threshold value, concrete big I is according to the actual conditions of network operation, and the user determines the requirement of network service quality.
Simultaneously, can also be according to the actual needs of network, exceed that limit exhales threshold value according to the bandwidth of IP tunnel carrying what the congestion state of IP tunnel carried out classification distinguish.For example, when the bandwidth of carrying on the IP tunnel exceeds limit when exhaling threshold value 10M, right congestion level is an one-level then to think current IP; When the bandwidth of carrying on the IP tunnel exceeds limit when exhaling threshold value 20M, right congestion level is a secondary then to think current IP; According to similar method and the like following rank is set.If desired congestion state is carried out classification, then need to set in advance each such classification thresholds of similar 10M, 20M.The size of concrete classification thresholds can be according to the actual conditions of network operation, and the user determines the requirement of network service quality.
The benefit of congestion state being carried out classification is, when the resource on the IP tunnel has been in congestion state but under the not high situation of congestion level, can still allow it to take resource on the IP tunnel for the business of high priority, help guaranteeing the quality of server of high-priority service like this, help operator's segmentation.
Fig. 1 is the flow chart of monitoring resource on the IP tunnel in the present embodiment, specifically describes as follows:
Whether step 101:MGW monitors in real time self to exist to carry to set up successfully or carry and removes successful service, when existing carrying to set up successful service, and execution in step 102; When existing carrying to remove successful service, execution in step 103.
Here, MGW judges that the method that self whether exists carrying to set up successful service can be: judge whether self sent at the carrying of certain business to the MSC server and set up success response, if then should business set up successful service for carrying; MGW judges that the method that self whether exists carrying to remove successful service can be: judge whether self sent at the carrying of certain business to the MSC server and remove success response, if then should business remove successful service for carrying.
Step 102:MGW sets up successfully pairing business according to carrying, and the bandwidth that business is shared is accumulated on total occupied bandwidth of professional pairing IP tunnel, execution in step 104.
Step 103:MGW removes successfully pairing business according to carrying, business deduct the professional shared IP tunnel bandwidth of current dismounting, execution in step 104 on total occupied bandwidth of corresponding IP tunnel.
Step 104: whether the bandwidth of judging the shared IP tunnel of current business has exceeded limit is exhaled threshold value, exhales threshold value if exceed limit, and then current IP channel has been in congestion state, execution in step 105; Otherwise current IP channel is not in congestion state, execution in step 106.
Step 105: exhale the congestion level of how many definite current IP channel of threshold value according to exceeding limit, finish current monitoring flow process.For example, when the one-level classification thresholds that sets in advance is that the secondary classification thresholds of 10M, setting is when being 20M, then exceed limit when exhaling threshold value to be 8M when the occupied bandwidth on the IP tunnel, current congestion level is an one-level, when the occupied bandwidth on the IP tunnel exceeds limit when exhaling threshold value to be 16M, current congestion level is a secondary.
Whether to be in state congested if the IP direction only need be understood by system, and when not needing specifically to understand the congestion level of IP direction, then can save step 105, promptly after finishing to the whether congested judgement of IP tunnel, if current IP channel is in congestion state, determine that then current IP channel is a congestion state, finishes current monitoring flow process; When if current IP channel is in non-congestion state, execution in step 106.
Step 106: determine that current IP channel is non-congestion state, finish current monitoring flow process.
In actual applications,, MGW self exist carrying to set up successful service or carrying when removing successful service when whenever judging, and all can execution in step 101～106.
In flow process shown in Figure 1, when existing carrying to remove successful service in the MGW, can also be before execution in step 103 or step 104, judge further whether the professional shared IP tunnel that current success is removed had been in congestion state before not removing current business, if be not in congestion state, can determine directly that then current IP channel is non-congestion state, finishes current monitoring flow process; Be not under the situation of congestion state if be in congestion state and in the judgement of subsequent step 104, obtain current IP channel, determine that current IP channel is non-congestion state, finish current monitoring flow process.Other steps are identical with flow process shown in Figure 1, are not described in detail in this.
In the flow process of Fig. 1 introduction bearing resource be with MGW in bandwidth on the IP tunnel be that example is introduced, the bearing resource among the MGW can also be the occupancy of bandwidth, the logic chain way on the IP tunnel, the CPU among the MGW, system message bag and the processing module control table of statistic multiplexing total on a plurality of IP tunnels.The method for supervising of these resources is identical with method for supervising shown in Figure 1, also is that employing adds up when carrying is set up successfully, deducts the corresponding resource that takies when carrying is removed successfully, and then judges whether the resource among the MGW is congested.
When carrying out flow process shown in Figure 1,, can also trigger the admission control mechanism of startup at this IP direction if monitoring obtains that certain IP tunnel has been in congestion state among the MGW; If the congested recovery of certain IP tunnel, cancellation is at the admission control mechanism of this IP tunnel.The admission control mechanism here: just when certain IP tunnel has been in congestion state,, then access control is carried out in this foundation carrying request if MGW receives the request of setting up carrying on this IP tunnel.
Concrete admission control method can be a flow process as shown in Figure 2, specifies as follows:
Wherein, in the process of execution graph 1, when certain IP tunnel of MGW is in congestion state, also can not start admission control mechanism at this IP tunnel.But, initiate professionally when setting up bearing request message when MGW receives whenever that the MSC server is current, judge whether the shared IP tunnel of current business has been in congestion state, if be in congestedly, then start access control, execution in step 203; Otherwise, execution in step 206.
Step 203: obtain the professional required congestion level of IP tunnel and the priority of current business of taking.Here, obtaining the professional required congestion level that takies IP tunnel can obtain by the monitoring flow process of Fig. 1.The priority that obtains current business then can obtain according to priority that should business had in the prior art.For example, obtain to shine upon the comprehensive quality rank (IQC) that obtains by user class and class of service.If business is not carried any priority, then this business is considered as the minimum business of priority.
Step 204: whether the congestion level of judging bearing resource needs this level traffic limit is exhaled, and limits if desired and exhales, and then execution in step 205; Otherwise, execution in step 206.
Here, the concrete method of judging can be: other congestedly can carry out which kind of other priority service of level limit to and exhale to set in advance which kind of level, according to the congestion level of the priority of business and professional shared IP tunnel business is limit and is exhaled.For example: when congestion level be set to four grades, when professional priority also is set to four grades, when professional shared IP tunnel being set being level 1 congestion, can only be that the service implementation limit of one-level is exhaled to priority, and be that two, three or four business can not be implemented limit and exhales priority; Professional shared IP tunnel be set be secondary when congested, can only to priority be one or the service implementation limit of secondary exhale, and to priority be three or the business of level Four can not implement limit and exhale, congestion level be three or level Four then can be according to similar situation.
Step 205:MGW returns carrying to the MSC server and sets up failure response, and MGW finishes the carrying of current business and sets up flow process.
Step 206: follow-up handling process is set up in normal execution carrying.
In step 204,, can also judge whether that needs are limit current business according to the ratio that limit is exhaled to exhale that if desired, then execution in step 205 when business being limit when exhaling; Otherwise, execution in step 206.For example: when the ratio of exhaling when limit is set to 50%, on average meaning, then be one of per two call blocking.
When whether MGW only can provide system to be in congested and concrete congestion level can not be provided, or the user is not when needing MGW that the service of exhaling according to the congestion level limit is provided, the operation that then can save step 203 and step 204, and other steps are constant.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (9)
1. the method for a monitoring resource is characterized in that, limit is set exhales threshold value and classification thresholds, and this method may further comprise the steps:
A, after existing carrying to set up successfully or carry the dismounting successful service, the computing service current IP channel total occupying resource;
B, judge whether current IP channel total occupying resource has exceeded limit and exhaled threshold value, if determine that then IP tunnel is a congestion state, execution in step C; Otherwise, determine that current IP channel is non-congestion state, finish current monitoring flow process;
C, deduct limit with the resource that takies on the current IP channel and exhale threshold value, the numerical value that relatively obtains and the classification thresholds of setting are determined the congestion level of current IP channel.
2. method according to claim 1, it is characterized in that, in the steps A, described computing service current IP channel total occupying resource is: when existing carrying to set up successful service, the resource that current business is taken is accumulated in always taking on the resource of professional corresponding IP tunnel; When existing carrying to remove successful service, deduct the current resource that takies of business on the resource always taking of the corresponding IP tunnel of professional institute.
3. method according to claim 1 and 2, it is characterized in that, when existing carrying to remove successful service, further comprising before steps A and the B: judge whether professional shared IP tunnel had been congestion state before business is not removed, if, execution in step B; Otherwise, determine that current IP channel is non-congestion state.
4. method according to claim 3 is characterized in that, among the step B, does not exceed limit when exhaling threshold value in current IP channel total occupying resource, then determines the congested recovery of current IP channel to finish current monitoring flow process.
5. method according to claim 1 is characterized in that, the resource that described business takies is: bandwidth, logic chain way, cpu resource, system message bag number or processing module control table occupancy.
6. method according to claim 1 and 2 is characterized in that, media gateway MGW is received professional when setting up bearing request message, and this method further comprises:
E1, judge whether the bearing resource of the shared IP tunnel of current business is congested, if congested, the foundation carrying request of refusal current business; Otherwise, normally carry out follow-up carrying and set up flow process.
7. method according to claim 1 and 2 is characterized in that, this method further comprises: when definite IP tunnel is congestion state, start the access control at this IP tunnel; When the congested recovery of definite IP tunnel, cancellation is at the access control of this IP tunnel;
Media gateway MGW is received professional when setting up bearing request message, and this method further comprises:
E2, judge whether the shared IP tunnel of current business has started access control,, then refuse the foundation carrying request of current business if start; Otherwise, normally carry out follow-up carrying and set up flow process.
8. method according to claim 1 is characterized in that, receives professionally when setting up bearing request message when media gateway MGW, and this method further comprises:
E3, judge whether the bearing resource of the shared IP tunnel of current business is congested, if congested, execution in step F3; Otherwise, normally carry out follow-up carrying and set up flow process;
F3, the congestion level that obtains professional shared IP tunnel and the priority of current business, whether the congestion level of judging bearing resource is limit the business of this priority and is exhaled, if then refuse the foundation carrying of current business and ask; Otherwise, normally carry out follow-up carrying and set up flow process.
9. method according to claim 1 is characterized in that, when IP tunnel is in congestion state, then starts the access control at this IP tunnel; When the congested recovery of IP tunnel, then cancel access control at this IP tunnel; Receive professionally when setting up bearing request message when media gateway MGW, this method further comprises:
E4, judge the access control that whether started of the shared IP tunnel of current business, if start execution in step F4; Otherwise, normally carry out follow-up carrying and set up flow process;
F4, the congestion level that obtains the shared IP tunnel of current business and the priority of current business, whether the congestion level of judging bearing resource is limit the business of this priority and is exhaled, if then refuse the foundation carrying of current business and ask; Otherwise, normally carry out follow-up carrying and set up flow process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100074000A CN100407842C (en) | 2006-02-13 | 2006-02-13 | Method for monitoring resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100074000A CN100407842C (en) | 2006-02-13 | 2006-02-13 | Method for monitoring resource |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1859696A CN1859696A (en) | 2006-11-08 |
| CN100407842C true CN100407842C (en) | 2008-07-30 |
Family
ID=37298547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100074000A Expired - Fee Related CN100407842C (en) | 2006-02-13 | 2006-02-13 | Method for monitoring resource |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100407842C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404702B (en) * | 2008-11-25 | 2011-04-06 | 中兴通讯股份有限公司 | Call limitation method and apparatus |
| CN105471625B (en) * | 2015-11-16 | 2018-09-21 | 杭州东信北邮信息技术有限公司 | A kind of monitoring method and system of resource pool service health |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001111556A (en) * | 1999-10-01 | 2001-04-20 | Nec Commun Syst Ltd | Device and method for avoiding congestion according to red |
| CN1423879A (en) * | 2000-10-09 | 2003-06-11 | 西门子公司 | A method for congestion control within an IP-subnetwork |
| CN1426206A (en) * | 2001-12-10 | 2003-06-25 | 株式会社Ntt都科摩 | Communication control system, communication control method, base station and mobile equipment |
| CN1528061A (en) * | 2001-06-07 | 2004-09-08 | �����ɷ� | Method and apparatus for congestion control in a wire less communication system |
| CN1531804A (en) * | 2001-04-09 | 2004-09-22 | ����ɭ�绰�ɷ�����˾ | Method of controlling queue buffer |
| CN1633786A (en) * | 2002-01-03 | 2005-06-29 | 英特尔公司 | A method and apparatus for priority based flow control in an Ethernet architecture |
-
2006
- 2006-02-13 CN CN2006100074000A patent/CN100407842C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001111556A (en) * | 1999-10-01 | 2001-04-20 | Nec Commun Syst Ltd | Device and method for avoiding congestion according to red |
| CN1423879A (en) * | 2000-10-09 | 2003-06-11 | 西门子公司 | A method for congestion control within an IP-subnetwork |
| CN1531804A (en) * | 2001-04-09 | 2004-09-22 | ����ɭ�绰�ɷ�����˾ | Method of controlling queue buffer |
| CN1528061A (en) * | 2001-06-07 | 2004-09-08 | �����ɷ� | Method and apparatus for congestion control in a wire less communication system |
| CN1426206A (en) * | 2001-12-10 | 2003-06-25 | 株式会社Ntt都科摩 | Communication control system, communication control method, base station and mobile equipment |
| CN1633786A (en) * | 2002-01-03 | 2005-06-29 | 英特尔公司 | A method and apparatus for priority based flow control in an Ethernet architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1859696A (en) | 2006-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1388265B1 (en) | Method for protecting against overload of a packet switching network node of a communication network | |
| US8792340B2 (en) | Admission control for shared LTE network | |
| KR101454134B1 (en) | Method, equipment and system for scheduling data streams | |
| EP2409514B1 (en) | Hspa relative bit-rate aimd-based qos profiling | |
| US20050122945A1 (en) | Indication of service flow termination by network control to policy decision function | |
| JP2003199144A (en) | Resource control system, resource control method, and base station and mobile station suitably employed for them | |
| JP6097411B2 (en) | Data transmission method, apparatus and system | |
| US8879409B2 (en) | Method and system for improving QoS in a wireless network | |
| EP2580893B1 (en) | Call admission and preemption for multiple bit- rate applications | |
| EP2717504B1 (en) | Method for analyzing signaling traffic | |
| CN112312427A (en) | Method for optimizing network quality and electronic equipment | |
| EP3297323A1 (en) | Traffic control method, apparatus and system | |
| JP5696845B2 (en) | Access network system, gateway device, and network quality ensuring method | |
| CN103067224A (en) | Business flow monitoring relative method and device and system | |
| KR20120067456A (en) | Apparatus and method for forwarding handover data in wireless communication system | |
| CN102118871B (en) | Method for dynamically adjusting bearer channel accessed by wireless resource | |
| JP5167417B2 (en) | Method, apparatus, computer program product, and computer-readable medium for allocating traffic directly to a tunnel | |
| CN106921588B (en) | Flow control method, device and equipment | |
| CN102316483A (en) | Method and device for ensuring quality of service (QoS) of application service in evolution-data optimized (EVDO) system | |
| CN100407842C (en) | Method for monitoring resource | |
| JP4348367B2 (en) | Communication system, communication unit, and capability preserving method inside | |
| CN111163532B (en) | Method for establishing special bearing and mobile edge computing equipment | |
| JP2006203305A (en) | Congestion control method and apparatus | |
| US8463275B2 (en) | Mobile communication system, radio channel controller, mobile station, mobile switching center, and radio channel controlling method | |
| CN110876160B (en) | Resource transmission control method and device based on multimode base station |
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: 20080730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |