CN102413510A - Cell access control method and device - Google Patents
Cell access control method and device Download PDFInfo
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- CN102413510A CN102413510A CN2011103938443A CN201110393844A CN102413510A CN 102413510 A CN102413510 A CN 102413510A CN 2011103938443 A CN2011103938443 A CN 2011103938443A CN 201110393844 A CN201110393844 A CN 201110393844A CN 102413510 A CN102413510 A CN 102413510A
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Abstract
The invention discloses a cell access control method and device which are used for realizing cell access control on UE (user equipment) in combination with the load condition of each cell so that the load between every two cells is more balanced and the working efficiency of the network is improved. The cell access control method provided by the invention comprises the following steps of: determining the load of the cell where the UE is located and the load of an adjacent cell; and if the load of the cell where the UE is located exceeds a preset threshold, determining the accessed target cell according to the load condition of the adjacent cell, and accessing the UE to the target cell.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of community access control method and device.
Background technology
In present wireless network; Often through judgement to Radio Resource; Carry out user access control, and do not consider the situation of minizone, the user who is about to insert is carried out simple resource allocation; And new user inserts, the old user switches to when the user carries out the resource adjustment in new sub-district or the sub-district, all need carry out the sub-district admission processing.
For example: in the R4 system of 3G, the user generally adopts dedicated channel, and system is subject to code channel resource or power resource, admits strategy to mainly contain based on number of users and admits, admits and based on the code channel resource admittance etc. based on power.And insert (High Speed Packet Access in high-speed packet; HSPA) in the system; Because resource-sharing and fast dispatch characteristic, the admission control algorithm in the R4 system is no longer suitable, and it admits strategy mainly to calculate relevant algorithm based on number of users admittance, resource utilization.
Long Term Evolution (Long Term Evolution, LTE) in the system, the physical resource of distribution is power and running time-frequency resource; Shared channel is adopted in the transmission of user data, and it admits strategy and HSPA system class seemingly, calculates to guarantee bit rate (Guaranteed Bit Rate; GBR) and non-ensured bit rate (Non-GBR, NGBR) service resources utilance is according to new resources piece (Resource Block; RB) take Physical Resource Block (Physical Resource Block, PRB) thresholding is adjudicated, and is simple based on the acceptance algorithm of user's access number, be easy to realize; But accuracy is not enough, can be used as the simple realization of acceptance algorithm; Admit based on resource utilization; Set adequate resources utilance thresholding, when satisfying following condition, admit successfully; Otherwise admit failure, i.e. (predicted value of existing user resources utilization+Added Business resource requirement)/total available resources number＜resource utilization thresholding of system.
In the LTE system; The LTE system has taked OFDM (Orthogonal FrequencyDivision Multiplex; OFDM) technology, all subscriber equipmenies (UE) are shared running time-frequency resource through scheduling, and the UE number mainly is subject to running time-frequency resource total in the sub-district in the sub-district; Therefore (DataRadio Bearer DRB) admits based on code channel and power Data Radio Bearer.
In sum, prior art is not considered the actual influence of minizone phase mutual interference to time domain, frequency domain, sign indicating number territory, has just simply judged whether resource; Might cause between the sub-district load unbalanced; The cell load that has is excessive, and the cell load that has is very little, influences the operating efficiency of network.
Summary of the invention
The embodiment of the invention provides a kind of community access control method and device, in order to combine the loading condition of each sub-district, realizes the sub-district access control to UE, makes that load is balanced more between the sub-district, improves the operating efficiency of network.
A kind of community access control method that the embodiment of the invention provides comprises:
Confirm the load of subscriber equipment sub-district, place and adjacent sub-district;
When the load of sub-district, subscriber equipment place surpasses preset thresholding, determine the Target cell of access according to the load state of adjacent sub-district, subscriber equipment is inserted said Target cell.
A kind of sub-district access control apparatus that the embodiment of the invention provides comprises:
The unit is confirmed in load, is used for confirming the load of subscriber equipment sub-district, place and adjacent sub-district;
The Target cell of access when being used for load when sub-district, subscriber equipment place and surpassing preset thresholding, is determined according to the load state of adjacent sub-district in the judgment processing unit, and subscriber equipment is inserted said Target cell.
The embodiment of the invention is confirmed the load of subscriber equipment sub-district, place and adjacent sub-district; When the load of sub-district, subscriber equipment place surpasses preset thresholding; Determine the Target cell of access according to the load state of adjacent sub-district; Subscriber equipment is inserted said Target cell, thereby combined the loading condition of each sub-district, realized sub-district access control UE; Make that load is balanced more between the sub-district, improve the operating efficiency of network.
Description of drawings
The overall procedure sketch map of a kind of community access control method that Fig. 1 provides for the embodiment of the invention;
The idiographic flow sketch map of a kind of community access control method that Fig. 2 provides for the embodiment of the invention;
The structural representation of a kind of sub-district access control apparatus that Fig. 3 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of community access control method and device, in order to combine the loading condition of each sub-district, realizes the sub-district access control to UE, makes that load is balanced more between the sub-district, improves the operating efficiency of network.
The embodiment of the invention mainly solves time domain, frequency domain, the sign indicating number territory resource allocation problem the when user inserts in the wireless network.(Inter-Cell Interference Coordination ICIC) reports, and solves the resource allocation that is about to insert the user through Inter-Cell Interference Coordination; Reduce the interference in the network, make cordless communication network can bring into play maximum capacity, and can solve network edge user's service access; Simultaneously; Access difficult problem when also solving radio network optimization reduces network optimization pressure, makes wireless network be in a suitable capacity status.
Referring to Fig. 1, a kind of community access control method that the embodiment of the invention provides totally comprises step:
S101, confirm the load of sub-district, subscriber equipment place and adjacent sub-district;
S102, when the load of sub-district, subscriber equipment place surpasses preset thresholding, determine the Target cell of access according to the load state of adjacent sub-district, subscriber equipment is inserted said Target cell.
Preferably, this method also comprises:
When the load of sub-district, subscriber equipment place surpasses preset thresholding, subscriber equipment is inserted sub-district, subscriber equipment place.
Preferably, said load state according to adjacent sub-district is determined the Target cell of access, and subscriber equipment is inserted said Target cell, comprising:
Load is surpassed the adjacent sub-district of presetting thresholding, form optimum adjacent set of cells;
From the adjacent set of cells of optimum, select optimum adjacent sub-district, subscriber equipment is inserted optimum adjacent sub-district.
Preferably, said from the adjacent set of cells of optimum, the selection inserted optimum adjacent sub-district with subscriber equipment in optimum adjacent sub-district, comprising:
Order from small to large according to the load of the adjacent sub-district in the adjacent set of cells of optimum sorts to the adjacent sub-district in the adjacent set of cells of optimum;
The adjacent sub-district minimum from load begins, and from the adjacent set of cells of optimum, chooses adjacent sub-district successively as the adjacent sub-district of optimum;
When the adjacent sub-district of optimum allows subscriber equipment to insert, subscriber equipment is inserted optimum adjacent sub-district.
Preferably, this method also comprises:
When the adjacent sub-district of optimum does not allow subscriber equipment to insert, judge whether be not used as the adjacent sub-district that optimum adjacent sub-district is chosen in the optimum adjacent set of cells in addition, if, continue to choose adjacent sub-district as the adjacent sub-district of optimum then according to load order from small to large; Otherwise, subscriber equipment is inserted sub-district, subscriber equipment place.
The embodiment of the invention is based on the ICIC function of wireless network, through the mutual cell load information of X2 interface; Understanding the resource of adjacent sub-district uses and disturbed condition; When the UE of this sub-district of scheduling, avoid that adjacent sub-district has utilized or the bigger PRB of interference ratio as far as possible, perhaps on these PRB, fall power and send, tell adjacent sub-district the utilization of resources situation of this sub-district simultaneously; Avoid the resource collision of adjacent minizone as far as possible; The user finally is linked on the lower resource of interference, makes network reach optimum state, concrete community access control method comprises:
Initiate the sub-district when inserting when subscriber equipment is in free time (IDLE) state, whether the load of the sub-district at network side judges equipment place surpasses thresholding, and this thresholding can (Object Management, OM) entity be pre-configured by Object Management group.
If do not surpass thresholding, insert UE in current area, if surpass thresholding, judge the load condition of all adjacent sub-districts of current area, and further can also be sorted in adjacent sub-district according to the descending order of load;
Through the cell load thresholding (for example, the value of this thresholding can be 5dB, 6dB, 7dB or 8dB) that OM is provided with in advance, select the adjacent sub-district that all loads are lower than this thresholding, form optimum adjacent set of cells, and according to the ascending rank order of load; Particularly, when confirming optimum adjacent set of cells, (Interference over Thermal, IOT) parameter value are divided into 3 grades according to the IOT average with the sub-district: basic, normal, high to the interference thermal noise lifting on each PRB of each sub-district of base station measurement;
For example, can be pre-configured: the IOT that the IOT that the IOT of 10 PRB gets average, 15 PRB gets average or 20 PRB gets average;
The IOT of 10 PRB in each sub-district is got average,, then list this sub-district in low-grade sub-district if this average belongs to the 0-5dB scope; If this average belongs to the 5-10dB scope, then this sub-district is listed in the sub-district of middle grade; If this average greater than 10dB, is then listed this sub-district in high-grade sub-district.
So, can low-grade sub-district be added optimum adjacent set of cells.
According to the ascending order of load; Select adjacent sub-district as the adjacent sub-district of optimum successively from the adjacent set of cells of optimum; And (sub-district allows to insert and is meant that the sub-district is not in the sub-district and forbids inserting (BAR) state to judge whether optimum adjacent sub-district allows to insert; The sub-district does not allow to insert and is meant that the sub-district is in the state of BAR), if allow, insert at Target cell (optimum adjacent sub-district) so; If Target cell does not allow to insert, judge whether Target cell is last adjacent sub-district in the optimum adjacent set of cells, if current area inserts at the subscriber equipment place; Insert if not reselecting Target cell;
Be linked into optimum subdistrict according to above-mentioned algorithm up to subscriber equipment, the process that is linked into network to this subscriber equipment finishes.
Provide the explanation of a specific embodiment below.
Referring to Fig. 2, a kind of community access control method that the embodiment of the invention provides specifically comprises step:
S201, generation request for building link.
Wherein, said request for building link is used to be in the subscriber equipment of idle condition, perhaps is about to carry out the subscriber equipment that switch the sub-district, sets up the path of wireless connections with the base station.
S202, confirm the load of current area load and adjacent sub-district.
Wherein, said current area, the i.e. sub-district at the current place of UE.Said adjacent sub-district, the i.e. adjacent cells of cells at the current place of UE.
S203, judge that whether the load of current area surpasses preset thresholding, if, execution in step S204 then; Otherwise, execution in step S210.
S204, confirm optimum adjacent set of cells.Be about to the adjacent sub-district that load does not surpass preset thresholding, form optimum adjacent set of cells.
S205, the adjacent sub-district during the adjacent sub-district of optimum combined are according to load rank order from small to large.
S206, begin, from the adjacent set of cells of optimum, select adjacent sub-district as the adjacent sub-district of optimum, the Target cell that promptly inserts as subscriber equipment from the minimum adjacent sub-district of load.
S207, judge whether Target cell allows to insert, if, execution in step S208 then; Otherwise, execution in step S209.
S208, control subscriber equipment insert at Target cell.
S209, judge whether to also have optional optimum adjacent sub-district, promptly judge whether be not used as the adjacent sub-district that optimum adjacent sub-district is chosen in the optimum adjacent set of cells in addition, if, execution in step S206 then; Otherwise, execution in step S210.
S210, control subscriber equipment insert in current area.
Referring to Fig. 3, a kind of sub-district access control apparatus that the embodiment of the invention provides comprises:
The Target cell of access when being used for load when sub-district, subscriber equipment place and surpassing preset thresholding, is determined according to the load state of adjacent sub-district in judgment processing unit 12, and subscriber equipment is inserted said Target cell.
Preferably, said judgment processing unit 12 also is used for:
When the load of sub-district, subscriber equipment place surpasses preset thresholding, subscriber equipment is inserted sub-district, subscriber equipment place.
Preferably, said judgment processing unit 12 surpasses the adjacent sub-district of presetting thresholding with load, forms optimum adjacent set of cells; From the adjacent set of cells of optimum, select optimum adjacent sub-district, subscriber equipment is inserted optimum adjacent sub-district.
Preferably, said judgment processing unit 12, the order from small to large according to the load of the adjacent sub-district in the adjacent set of cells of optimum sorts to the adjacent sub-district in the adjacent set of cells of optimum; The adjacent sub-district minimum from load begins, and from the adjacent set of cells of optimum, chooses adjacent sub-district successively as the adjacent sub-district of optimum; When the adjacent sub-district of optimum allows subscriber equipment to insert, subscriber equipment is inserted optimum adjacent sub-district.
Preferably; Said judgment processing unit 12; When the adjacent sub-district of optimum does not allow subscriber equipment to insert, judge whether be not used as the adjacent sub-district that optimum adjacent sub-district is chosen in the optimum adjacent set of cells in addition, if; Then, continue to choose adjacent sub-district as the adjacent sub-district of optimum according to load order from small to large; Otherwise, subscriber equipment is inserted sub-district, subscriber equipment place.
Preferably, the sub-district access control apparatus that the embodiment of the invention provides can be the base station.
In sum, the embodiment of the invention provides the new scheme in a kind of subscriber equipment access network, confirms the load of subscriber equipment sub-district, place and adjacent sub-district; When the load of sub-district, subscriber equipment place surpasses preset thresholding; Load according to adjacent sub-district; Subscriber equipment is inserted Target cell; This technical scheme is applicable to FDD Long Term Evolution (FDD-LTE) Radio Network System, and this technical scheme has mainly utilized the ICIC function can export load, the disturbed condition of minizone, can maximum reach network capacity; And mainly utilized X2 interface can feed back comparatively fast adjacent sub-district state, admit than the power of prior art, resources occupation rate algorithm more to feed back to network fast; Can be optimum utilize time-frequency domain resources in the wireless network, make resource utilization can reach maximum.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a community access control method is characterized in that, this method comprises:
Confirm the load of subscriber equipment sub-district, place and adjacent sub-district;
When the load of sub-district, subscriber equipment place surpasses preset thresholding, determine the Target cell of access according to the load state of adjacent sub-district, subscriber equipment is inserted said Target cell.
2. method according to claim 1 is characterized in that, this method also comprises:
When the load of sub-district, subscriber equipment place surpasses preset thresholding, subscriber equipment is inserted sub-district, subscriber equipment place.
3. method according to claim 1 is characterized in that said load state according to adjacent sub-district is determined the Target cell of access, and subscriber equipment is inserted said Target cell, comprising:
Load is surpassed the adjacent sub-district of presetting thresholding, form optimum adjacent set of cells;
From the adjacent set of cells of optimum, select optimum adjacent sub-district, subscriber equipment is inserted optimum adjacent sub-district.
4. method according to claim 3 is characterized in that, said from the adjacent set of cells of optimum, the selection inserted optimum adjacent sub-district with subscriber equipment in optimum adjacent sub-district, comprising:
Order from small to large according to the load of the adjacent sub-district in the adjacent set of cells of optimum sorts to the adjacent sub-district in the adjacent set of cells of optimum;
The adjacent sub-district minimum from load begins, and from the adjacent set of cells of optimum, chooses adjacent sub-district successively as the adjacent sub-district of optimum;
When the adjacent sub-district of optimum allows subscriber equipment to insert, subscriber equipment is inserted optimum adjacent sub-district.
5. method according to claim 4 is characterized in that, this method also comprises:
When the adjacent sub-district of optimum does not allow subscriber equipment to insert, judge whether be not used as the adjacent sub-district that optimum adjacent sub-district is chosen in the optimum adjacent set of cells in addition, if, continue to choose adjacent sub-district as the adjacent sub-district of optimum then according to load order from small to large; Otherwise, subscriber equipment is inserted sub-district, subscriber equipment place.
6. a sub-district access control apparatus is characterized in that, this device comprises:
The unit is confirmed in load, is used for confirming the load of subscriber equipment sub-district, place and adjacent sub-district;
The Target cell of access when being used for load when sub-district, subscriber equipment place and surpassing preset thresholding, is determined according to the load state of adjacent sub-district in the judgment processing unit, and subscriber equipment is inserted said Target cell.
7. device according to claim 6 is characterized in that, said judgment processing unit also is used for:
When the load of sub-district, subscriber equipment place surpasses preset thresholding, subscriber equipment is inserted sub-district, subscriber equipment place.
8. device according to claim 6 is characterized in that, said judgment processing unit surpasses the adjacent sub-district of presetting thresholding with load, forms optimum adjacent set of cells; From the adjacent set of cells of optimum, select optimum adjacent sub-district, subscriber equipment is inserted optimum adjacent sub-district.
9. device according to claim 8 is characterized in that, said judgment processing unit, and the order from small to large according to the load of the adjacent sub-district in the adjacent set of cells of optimum sorts to the adjacent sub-district in the adjacent set of cells of optimum; The adjacent sub-district minimum from load begins, and from the adjacent set of cells of optimum, chooses adjacent sub-district successively as the adjacent sub-district of optimum; When the adjacent sub-district of optimum allows subscriber equipment to insert, subscriber equipment is inserted optimum adjacent sub-district.
10. device according to claim 9; It is characterized in that said judgment processing unit is not when the adjacent sub-district of optimum allows subscriber equipment to insert; Judge and whether be not used as the adjacent sub-district that optimum adjacent sub-district is chosen in the optimum adjacent set of cells in addition; If, continue to choose adjacent sub-district as the adjacent sub-district of optimum then according to load order from small to large; Otherwise, subscriber equipment is inserted sub-district, subscriber equipment place.
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| CN2011103938443A CN102413510A (en) | 2011-12-01 | 2011-12-01 | Cell access control method and device |
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| CN2011103938443A CN102413510A (en) | 2011-12-01 | 2011-12-01 | Cell access control method and device |
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| CN102833789A (en) * | 2012-09-18 | 2012-12-19 | 武汉邮电科学研究院 | Load balancing method for LET (Long Term Evolution) network |
| CN103079235A (en) * | 2013-01-16 | 2013-05-01 | 上海大唐移动通信设备有限公司 | Method and device for realizing load balance in long term evolution (LTE) system |
| CN103702369A (en) * | 2013-12-31 | 2014-04-02 | 大唐移动通信设备有限公司 | Method, device and system for balancing dual-carrier networking load |
| CN103826271A (en) * | 2014-02-24 | 2014-05-28 | 大唐移动通信设备有限公司 | Cell switching method and device |
| CN103874131A (en) * | 2012-12-12 | 2014-06-18 | 上海贝尔股份有限公司 | Inter-cell load balance method based on quality of service, device and system |
| CN103874165A (en) * | 2012-12-17 | 2014-06-18 | 电信科学技术研究院 | Method and device for service accessing in LTE-A system |
| CN105208602A (en) * | 2015-10-16 | 2015-12-30 | 中国联合网络通信集团有限公司 | Load balancing method and device |
| CN105407507A (en) * | 2015-11-02 | 2016-03-16 | 中国联合网络通信集团有限公司 | Load balancing method and device |
| CN105430753A (en) * | 2015-12-31 | 2016-03-23 | 中国科学技术大学 | Method for improving system throughput in dense cell network |
| WO2016101609A1 (en) * | 2014-12-24 | 2016-06-30 | 中兴通讯股份有限公司 | Load balancing method, neighboring base station, and communications system |
| CN107333300A (en) * | 2016-04-29 | 2017-11-07 | 大唐移动通信设备有限公司 | The method of adjustment and device of a kind of cell load |
| CN107509216A (en) * | 2016-06-14 | 2017-12-22 | 富士通株式会社 | Wireless network dispatching method and device |
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| CN102833789B (en) * | 2012-09-18 | 2015-04-15 | 武汉邮电科学研究院 | Load balancing method for LET (Long Term Evolution) network |
| CN102833789A (en) * | 2012-09-18 | 2012-12-19 | 武汉邮电科学研究院 | Load balancing method for LET (Long Term Evolution) network |
| CN103874131A (en) * | 2012-12-12 | 2014-06-18 | 上海贝尔股份有限公司 | Inter-cell load balance method based on quality of service, device and system |
| CN103874165A (en) * | 2012-12-17 | 2014-06-18 | 电信科学技术研究院 | Method and device for service accessing in LTE-A system |
| CN103079235B (en) * | 2013-01-16 | 2016-12-28 | 上海大唐移动通信设备有限公司 | The method and device of load balancing is realized in LTE system |
| CN103079235A (en) * | 2013-01-16 | 2013-05-01 | 上海大唐移动通信设备有限公司 | Method and device for realizing load balance in long term evolution (LTE) system |
| CN103702369A (en) * | 2013-12-31 | 2014-04-02 | 大唐移动通信设备有限公司 | Method, device and system for balancing dual-carrier networking load |
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| CN105208602A (en) * | 2015-10-16 | 2015-12-30 | 中国联合网络通信集团有限公司 | Load balancing method and device |
| CN105208602B (en) * | 2015-10-16 | 2018-12-11 | 中国联合网络通信集团有限公司 | A kind of method and device of load balancing |
| CN105407507A (en) * | 2015-11-02 | 2016-03-16 | 中国联合网络通信集团有限公司 | Load balancing method and device |
| CN105430753A (en) * | 2015-12-31 | 2016-03-23 | 中国科学技术大学 | Method for improving system throughput in dense cell network |
| CN105430753B (en) * | 2015-12-31 | 2019-02-01 | 中国科学技术大学 | A method of improving throughput of system in intensive small subzone network |
| CN107333300A (en) * | 2016-04-29 | 2017-11-07 | 大唐移动通信设备有限公司 | The method of adjustment and device of a kind of cell load |
| CN107333300B (en) * | 2016-04-29 | 2020-06-09 | 大唐移动通信设备有限公司 | Cell load adjusting method and device |
| CN107509216A (en) * | 2016-06-14 | 2017-12-22 | 富士通株式会社 | Wireless network dispatching method and device |
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Application publication date: 20120411 |