CN102291816B - For the method identifying the position of the mobile device in cordless communication network - Google Patents
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- CN102291816B CN102291816B CN201110168916.4A CN201110168916A CN102291816B CN 102291816 B CN102291816 B CN 102291816B CN 201110168916 A CN201110168916 A CN 201110168916A CN 102291816 B CN102291816 B CN 102291816B
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- 238000004891 communication Methods 0.000 title claims abstract description 44
- 230000004807 localization Effects 0.000 claims abstract description 50
- 230000005859 cell recognition Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011005 laboratory method Methods 0.000 description 3
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- 239000000969 carrier Substances 0.000 description 1
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- 230000002708 enhancing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
A kind of method and system of the position of the mobile device for identifying in cordless communication network, including: identify mobile device be presently in layered cell structure (HCS) priority number of community.When HCS priority number predefined number more than first, select the first localization method to identify the position of mobile device.When HCS priority number predefined number less than second, select the second localization method.When HCS priority number is between the first predefined number and the second predefined number, described method also performs for the probabilistic method of regioselective method from the first localization method and the second localization method.
Description
Technical field
The present invention relates to identify the position of the mobile device in cordless communication network.More specifically, the present invention
Relate to the location recognition side selecting the position for most preferably identifying the mobile device in cordless communication network
Method.
Background technology
Now, radio communication device is equipped with the various enhancing functions for identifying its current geographic position.
The example of radio communication device includes mobile device, laptop computer, personal digital assistant (PDA)
Deng.Many radio communication devices (such as, mobile device) are equipped with the GPS for identifying its current location
Navigator.Therefore, the mobile device in cordless communication network is receiving its coordinate of searching or current geographic
After the request of position, automatically open GPS module to differentiate geographic orientation.
For identifying that the other method of current location is Wi-Fi triangulation method and bluetooth triangulation side
The use of method.In this approach, the position of the specific Wi-Fi base station currently associated is identified with mobile device
Put.But, significant challenge be to positively identify the physical location of mobile device, the indoor of building and
Outdoor physical location.
Although GPS method is method and it is also preferred that method more accurately in methods availalbe, but
Its signal intensity is the most weak and it also requires between open sky (open-sky) and transmitting terminal and receiving terminal
There is no barrier.Due to these reasons, before geographical coordinate is finally differentiated, common mobile device needs
Spend a large amount of battery electric power for detecting and processing satellite-signal.Additionally, due to previous reasons, use
Mobile device is positioned the most difficult during in-house operation by GPS method.Additionally, due to
Wi-Fi is generally available in indoor environment, therefore Wi-Fi method is used for indoor environment.
Currently, for movement station do not have can the type of the method environment to estimate mobile device and just experiencing
(indoor or outdoors) and based on current environment recognition methods.Such as, in the second filial generation (2G) radio communication
In network and the third generation (3G) cordless communication network, in system information broadcast (SIB) message of network
Or not may be notified that, during signal transmission, the information that mobile device is in indoor environment or outdoor environment
Element (IE).Similarly, currently the most mobile in third generation partner program (3GPP) specification
Device can learn other process that mobile device is in indoor environment or outdoor environment.Therefore, connecing
After receiving the request to identification position, mobile device starts scanning the most in a predefined way for every kind
The signal of technology, to draw the optimum position method of estimation that will be used.Therefore, in Current protocols,
Unnecessary scanning causes the consumption of the battery resource in mobile device.
Accordingly, it would be desirable to effectively determine that optimal position is known during identifying the operation of position of mobile device
Other method.
Summary of the invention
It is an aspect of the invention to solve at least the above problem and/or shortcoming and provide the most following
Advantage.Therefore, it is an aspect of the invention to provide a kind of movement for identifying in cordless communication network
The system and method for the position of device.
According to an aspect of the present invention, the position of a kind of mobile device for identifying in cordless communication network
Method include: identify mobile device be presently in the layered cell structure (HCS) of community preferential
Progression.HCS priority number fall within defined in cordless communication network predefined in the range of, and from logical
Communication network receives HCS priority number information.When HCS priority number predefined number more than first, institute
Method of stating selects the first localization method to identify the position of mobile device subsequently.Additionally, when HCS priority
Number is less than second during predefined number, and described method choice the second localization method is to identify the position of mobile device.
Afterwards, when HCS priority number is between the first predefined number and the second predefined number, described method is held
Row is for the probabilistic method of regioselective method from the first localization method or the second localization method, with most preferably
Ground identifies the position of mobile device.
According to a further aspect in the invention, the position of a kind of mobile device for identifying in cordless communication network
The method put includes: read the Femto cell state in cordless communication network.Subsequently, small when millimicro
District is servicing mobile device, and mobile device is currently in use Femto cell when communicating, described
Method choice the first localization method is to identify the position of mobile device.When mobile device is currently in use except millimicro
When community outside Microcell communicates, described method selects the second localization method to identify shifting further
The position of dynamic device.
According to a further aspect in the invention, mobile device includes processor and transceiver.Described transceiver from
Communication network receives layered cell structure (HCS) priority number.Described processor identification mobile device is worked as
The HCS priority number of the community at before.When HCS priority number predefined number more than first,
Described processor can also select the first localization method to identify the position of mobile device.When HCS priority
Number is less than second during predefined number, and described processor selects the second localization method to identify mobile device subsequently
Position.When HCS priority number is between the first predefined number and the second predefined number, described process
Device also performs for the probabilistic method of regioselective method from the first localization method and the second localization method,
To identify the position of mobile device.
By disclosing the detailed description of exemplary embodiment of the present below in conjunction with the accompanying drawings, other of the present invention
Aspect, advantage and distinguishing feature will readily appear to those skilled in the art.
Accompanying drawing explanation
By the description carried out below in conjunction with the accompanying drawings, the certain exemplary embodiments of the present invention above-mentioned and its
Its aspect, feature and advantage will be more readily apparent from, wherein:
Fig. 1 illustrates the flow chart of the position identifying mobile device according to an exemplary embodiment of the present invention；
Fig. 2 illustrates the flow process of the position of the identification mobile device according to another exemplary embodiment of the present invention
Figure；
Fig. 3 illustrates mobile device according to an exemplary embodiment of the present invention；And
Fig. 4 illustrates the flow process of the position of the identification mobile device according to another exemplary embodiment of the present invention
Figure.
It will be understood by those skilled in the art that the element in accompanying drawing is in order at simply and clearly purpose is illustrated,
And be likely not to have and be drawn to scale.Such as, in accompanying drawing, the size of some elements can be relative to other element
It is exaggerated, to help the understanding improving various exemplary embodiments of this disclosure.
Run through accompanying drawing, it should be noted that similar label is used for describing same or analogous element, feature and knot
Structure.
Detailed description of the invention
Description referring to the drawings is provided to limit by claim and equivalent thereof to help understanding comprehensively
The exemplary embodiment of the present invention.Hereinafter describe include various specific detail to help understanding, but these are only
It is considered as exemplary.Therefore, those of ordinary skill in the art is it will be recognized that without departing from this
Embodiment described here can be made various changes and modifications in the case of bright scope and spirit.It addition,
For clarity and brevity, the description of known function and structure is eliminated.
The term and the word that use in following described and claimed are not limited to bibliographical meaning, but are only sent out
A person of good sense is used so that and clearly as one man understands the present invention.Therefore, for those skilled in the art it is obvious that
The following description providing the exemplary embodiment of the present invention is only used for schematic purpose rather than for limiting
The purpose of the present invention limited by claim and equivalent thereof.
Should be appreciated that singulative includes plural referents, unless the instruction that context is the most different.Therefore,
Such as, mention " assembly surface " to include mentioning one or more such surface.
Represent feature, the parameter of statement by term " substantially " or be worth unnecessary accurately attaining, and
It is can to occur having included such as tolerance, measurement error, measuring accuracy restriction and those skilled in the art
The deviation of the other factors known or change, the amount of described deviation or change is not excluded for the effect that feature is intended to provide
Really.
Fig. 1 to Fig. 4 discussed below and for describing presently disclosed principle various of this patent document
Embodiment is only the mode of example, and is understood not to limit by any way the scope of the present disclosure.This
Skilled artisan will appreciate that of field, presently disclosed principle can be with any communication that can arrange suitably
System realizes.It is exemplary for describing the term of various embodiment.It should be understood that these term quilts
Offer is only used for help and understands description, and using and limiting of they limits the present invention's never in any form
Scope.Term first, second grade is used for making a distinction between the object with identical technical term, and
And be intended to express time sequencing never in any form, unless there is the most different statements.Set quilt
It is defined as at least including the nonempty set of an element.
Fig. 1 illustrates the flow process of the process of the position identifying mobile device according to an exemplary embodiment of the present invention
Figure.
With reference to Fig. 1, method 100 starts in step 102.In step 104, dress is moved in described method identification
Put layered cell structure (HCS) priority number of the community being currently at.In the described embodiment, excellent
First progression fall within defined in cordless communication network from the zero to seven predefined in the range of.From communication network
Receive HCS priority number information.Such as, the HCS system of GSM and UMTS system be one so
Technology, it has the community layering of up to eight grades controlled for preferably load.Generally, community
It is classified as macrocell, Microcell and slight (pico) community.It is big that they can be used for inferring that community is supported
Region or little region.Similarly, newer communication system (as LTE, Release 8 version it
After communication system) femto (femto) community give the design in indoor environment.
Notice that radio communication device can be not only second and/or third generation wireless communication standard, it is also possible to be
Other next generation wireless communication standard.
In step 106, when HCS priority number predefined number more than first, select the first localization method
To identify the position of mobile device.Such as, first to predefine number can be five.In the described embodiment,
First localization method applies to the indoor and localization method of Hypomobility environment, wherein, it is adaptable to indoor
It is cell recognition method, enhancement mode difference method observing time and wireless with the localization method of Hypomobility environment
At least one in fidelity (WiFi) position system location method of estimation.Therefore, it is in when mobile device
Indoor environment, and when identifying the information about indoor environment based on HCS priority number, select first
Localization method.
In step 108, when HCS priority number predefined number less than second, select the second localization method
To identify the position of mobile device.Such as, second to predefine number can be two.In the described embodiment,
Second localization method applies to the outdoor and localization method of high mobility environment.Described be applicable to outdoor and
The localization method of high mobility environment is global positioning system (GPS), assistant GPS (AGPS) method
With at least one in a kind of satellite methods.
In step 110, when HCS priority number is between the first predefined number and the second predefined number,
Method 100 performs for the probability side of regioselective method from the first localization method and the second localization method
Method, to identify the position of mobile device.Therefore, when HCS priority value is more than value one and less than value six
Time (that is, between two and five), perform probabilistic method.
The inventive method uses the layered cell structure (HCS) in wireless communication system to be used for identifying movement
The position of device.In the process, identify mobile device be presently in community.This can be by obtaining
Obtain HCS priority value to complete.Within the rational persistent period, collect these data, and set up probability mould
Type is to draw the conclusion of the physical location for determining mobile device.
Such as, the high level instruction of HCS priority is in higher priority community (such as picocell), this
Instruction mobile device is likely to be at indoor, and vice versa.According to this testing mechanism, make decision out
Begin suitable detection means, and described detection means is indoor location method of estimation or outdoor location method of estimation
In any one, described detection means will be chosen so as to differentiate mobile device accurate geographic orientation.Cause
The preference being used for according to user is provided location Based service (LBS) by this positional information obtained
Main frame.Subsequently, in order to use LBS, mobile device has to look for positional information with from available multiple position
Put method of estimation (such as, GPS method, AGPS method, WPS method, Cell-ID method, OTDOA
Method and/or E-OTD method) the suitable method of middle selection.In step 112, method 100 terminates.
Fig. 2 is the process of the position illustrating the identification mobile device according to another exemplary embodiment of the present invention
Flow chart.
With reference to Fig. 2, method 200 starts in step 202.In step 204, described method performs channel radio
The reading of the Femto cell state in communication network.In the described embodiment, cordless communication network can be
Long Term Evolution communication standard Release 8 version and/or third generation wireless communication standard.
In step 206, when Femto cell is servicing mobile device, and mobile device is currently in use
When Femto cell communicates, select the first localization method to identify the position of mobile device.Described
In embodiment, the first localization method is cell recognition method, enhancement mode difference method observing time and wireless guarantor
Very at least one in (WiFi) alignment system (WPS) method.Therefore, when along with mobile device with
Femto cell associates, and when mobile device is in indoor environment, selects the first localization method.
In step 208, the community being currently in use in addition to Femto cell when mobile device communicates
Time, select the second localization method to identify the position of mobile device.In the described embodiment, the second location
Method is in global positioning system (GPS), assistant GPS (AGPS) method and a kind of satellite methods
At least one.Therefore, when mobile device does not associates with Femto cell, and mobile device is in outdoor
During environment, select the second localization method.In step 210, method 200 terminates.
Fig. 3 illustrates mobile device according to an exemplary embodiment of the present invention.
With reference to Fig. 3, it is provided that mobile device 302.Mobile device 302 includes transceiver 304 and processor
306.Transceiver 304 receives layered cell structure (HCS) priority number from wireless communication system.Process
Device 306 identify subsequently mobile device 302 be presently in the HCS priority number of community.Work as HCS
Priority number is more than first during predefined number, and processor 306 can also select the first localization method to identify
The position of mobile device 302.
When HCS priority number predefined number less than second, processor 306 can also select the second location
Method is to identify the position of mobile device 302.When HCS priority number falls into the first predefined number with second
Time between predefined number, processor 306 also performs for from the first localization method and the second localization method
The probabilistic method of regioselective method, to identify the position of mobile device.
Fig. 4 is the flow process of the position illustrating the identification mobile device according to another exemplary embodiment of the present invention
Figure.
With reference to Fig. 4, method 400 starts in step 402.In step 404, the user of mobile device triggers
GPS application is to identify the position of mobile device.In step 406, whether described method identification mobile device
It is in 2G network or 3G network.In the described embodiment, if mobile device is not on 2G net
In network or 3G network, the most described method performs step 420.But, if mobile device is in 2G net
In network or 3G network, then perform step 408.
In step 408, described method know mobile device be presently in the HCS priority of community
(HCS_PRIO).In the described embodiment, what HCS community was given from the zero to seven (0-7) is preferential
Level, wherein, zero (" 0 ") is lowest priority, and seven (" 7 ") are limit priorities.Such as, grand little
District is given lowest priority, and the Microcell/picocell in building is given limit priority.
According to cell reselection rule, the mobile device of high mobility attempts reselection procedure lower priority community
To avoid continuous reselection procedure.Similarly, for static mobile device, HCS priority based on community,
Laboratory method or outdoor method can be estimated.Such as, HCS priority limit is generally from the zero to seven (" 0 "
To " 7 ") change.HCS PRIO zero to one (" 0 " to " 1 ") be generally used for picocell (hospital/
Inside office buildings), two to five (" 2 " to " 5 ") scope is generally used for Microcell and (such as, exists
Center, city, cities and towns).Additionally, six to seven (" 6 " to " 7 ") are generally used for macrocell and (namely cover
The region of several kilometer radius).Therefore, if the HCS_PRIO of current area is in extremely, (" 0 " is arrived
" 1 " or " 6 " arrives " 7 "), can directly assert the information about indoor and outdoors environment the most subsequently, and
Can correspondingly select method based on initial position.But, if HCS_PRIO is in intermediate range (" 2 "
To " 5 "), use probabilistic method to select location-based method, as explained later the most subsequently.
In step 410, whether described method identification HCS_PRIO is more than value five.If HCS_PRIO
More than five (" 5 "), the most described method 400 selects to be applicable to the indoor and location of Hypomobility environment subsequently
Method, otherwise, described method performs step 414.In step 412, one location side of described method choice
Method is to identify the position of mobile device.Described localization method is cell recognition method (Cell-ID), enhancement mode
Observing time difference method or Wireless Fidelity (WiFi) alignment system (WPS) method in one.Subsequently,
Perform step 426.
In step 414, described method identifies that whether HCS_PRIO is less than value two (" 2 ") subsequently.If
Whether HCS_PRIO, less than value two, selects to be applicable to the outdoor and location side of high mobility environment the most subsequently
Method.In step 416, described method choice global positioning system (GPS), assistant GPS (AGPS)
Method or satellite methods.Subsequently, step 426 is performed.
If HCS_PRIO is between two and five, perform regioselective method in step 418 the most subsequently
Probabilistic manner.Such as, for probability 0.8 (probability of 80%), 0.6 (probability of 60%), 0.4 (40%
Probability) and 0.2 (probability of 20%), can use respectively for HCS_PRIO's 2,3,4 and 5
Cell-ID, WPS method.Such as, HCS_PRIO is equal to the community of " 2 ", it is believed that mobile device
The probability having 80% is in outdoor.Therefore, outdoor method can be first attempted to find there is HCS_PRIO 2
Mobile device position.
HCS_PRIO is equal to the community of " 3 ", it is believed that mobile device has the probability of 60% to be in outdoor.
Therefore, outdoor method can be attempted and find the mobile device position with HCS_PRIO 3.
HCS_PRIO is equal to the community of " 4 ", it is believed that mobile device has the probability of 40% to be in outdoor.
Therefore, laboratory method can be attempted and find the mobile device position with HCS_PRIO 4.
HCS_PRIO is equal to the community of " 5 ", it is believed that mobile device has the probability of 20% to be in outdoor.
Therefore, laboratory method can be attempted and find the mobile device position with HCS_PRIO 5.
In the described embodiment, the time of the ambulant estimation as mentioned in 3GPP RR/RRC specification
Persistence length method (the most in 3 gpp definition), HCS_PRIO, at reselection procedure timer (TCR)
The number of times (NCR) of interior cell reselection can be readily used, and indoor and outdoors can be estimated, and
And suitably LBS initial methods can be chosen.
In step 406, if method 400 identifies that mobile device is not in 2G network or 3G network,
Perform step 420 the most subsequently.In step 420, described method checks whether mobile device is in Long Term Evolution
In communication standard Release 8 version and/or third generation wireless communication standard.If mobile device is in for a long time
In evolution communication standard Release 8 version and/or third generation wireless communication standard, the most described method performs step
Rapid 422, otherwise, perform step 426.In step 422, described method reads Femto cell state.
In step 424, whether described method identification mobile device is serviced by Femto cell.If mobile device
Serviced by Femto cell, perform step 412 the most subsequently, otherwise, perform step 416.
If mobile device is serviced by Femto cell, then in step 412, select for indoor environment
Localization method is to identify the position of mobile device.In the described embodiment, described localization method is that community is known
Other method, enhancement mode difference method observing time and Wireless Fidelity (WiFi) alignment system (WPS) method
In at least one.Subsequently, step 426 is performed.
If mobile device is used for communicating by the cell serves in addition to Femto cell, then in step 416,
Select the second localization method being used for outdoor environment to identify the position of mobile device.In the described embodiment,
Second localization method is global positioning system (GPS), assistant GPS (AGPS) method and a kind of satellite
At least one in method.Subsequently, step 426 is performed.In step 426, method 400 terminates.
The exemplary embodiment of the present invention provides a kind of mobile device for identifying in cordless communication network
The method of position.Described method provides a kind of employing based on mobile device using cross-layer method
Protocol information estimates the mode of suitable location-estimation algorithm.Described method allows mobile device to select
Good possible position method of estimation.Described location estimation method include but not limited to GPS, AGPS, WPS,
Cell ID, OTDOA and/or E-OTD.This saves the time obtaining primary importance orientation successively, and
And also save mobile device battery.Additionally, described method also reduces unnecessary gps satellite scanning
And the scanning of various WiFi signal.
In description above, describe the disclosure and advantage thereof with reference to exemplary embodiment.So
And, to those of ordinary skill in the art it is clear that the disclosure listed in without departing from claim
In the case of scope, various modifications and changes can be made.Therefore, specification and drawings should be understood this
Disclosed schematic example rather than for purposes of limitation.It is intended to all these possible amendment bags
Include in the scope of the present disclosure.
The exemplary embodiment of the disclosure relates to realize making of the computer system of technology described here
With.In one exemplary embodiment, the letter that described technology is included by using memorizer by processor
Breath performs.Such information can be read into primary storage from machine readable media (such as, storage device)
Device.The information that memorizer includes makes processor perform method described herein.
Term as used herein " machine readable media " represents that participating in offer makes machine operate in a specific way
Any medium of data.In the exemplary embodiment using computer system to realize, including various machines
Device computer-readable recording medium, such as, participates in providing information to be used for performing processor.Machine readable media can be
Storage medium.Storage medium includes non-volatile media and Volatile media.Non-volatile media includes example
Such as CD or disk, such as server storage unit.Volatile media includes dynamic memory.All this
The medium of sample must positively enable the information carried by medium be read information into the physical mechanism of machine
Detect.
The general type of machine readable media includes such as floppy disk, floppy disc, hard disk, tape or other magnetic
Property medium, CD-ROM, other optical medium any, punched card, paper tape, have hole pattern appoint
What its physical medium, RAM, PROM, EPROM, FLASH-EPROM, other storage any
Chip or cassette tape.
In the exemplary embodiment, machine readable media can include coaxial cable, copper cash, optical fiber
Transmission medium, described coaxial cable, copper cash, optical fiber include the line with bus.Transmission medium is all right
To use acoustics or the form of light wave, the ripple such as produced during radio wave and infrared data communication.
The example of machine readable media may include but be not limited to carrier wave or other Jie any that computer can be read from
Matter, such as online software, download link, installation link and link online.
Although illustrate and describe the present invention with reference to certain exemplary embodiments, but the skill of this area
Art personnel are it will be appreciated that without departing from the spirit and scope of the present invention limited by claim and equivalent thereof
In the case of can make the various changes in form and details.
Claims (12)
1. the method being used for identifying the position of the mobile device in cordless communication network, it is characterised in that:
If mobile device is in 2G network or 3G network, then:
Identify mobile device be presently in the layered cell structure HCS priority number of community；
When HCS priority number predefined number more than first, select the first localization method to identify mobile dress
The position put；
When HCS priority number predefined number less than second, select the second localization method to identify mobile dress
The position put；
When HCS priority number is between the first predefined number and the second predefined number, perform to be used for selecting
A kind of probabilistic method in first localization method and the second localization method, to identify the position of mobile device；
If mobile device is not in 2G network or 3G network, then:
Obtain the Femto cell state in cordless communication network；
The community being currently in use in addition to Femto cell when mobile device communicates, and mobile device
Based on associating of Femto cell and when being determined to be in indoor environment, select the 3rd localization method
To identify the position of mobile device；And
The community being currently in use in addition to Femto cell when mobile device communicates, and mobile device
Based on the associating of community in addition to Femto cell and when being determined to be in outdoor environment, select
4th localization method is to identify the position of mobile device.
The most the method for claim 1, wherein the first of indoor and Hypomobility environment it is applicable to
Localization method includes cell recognition method, enhancement mode difference method observing time and Wireless Fidelity WiFi location system
At least one in system WPS method.
The most the method for claim 1, wherein the second of outdoor and high mobility environment it is applicable to
Localization method includes at least one in global position system GPS, Assisted GPS method and satellite methods.
The most the method for claim 1, wherein HCS priority number falls within cordless communication network
Defined in the preset range from the zero to seven in.
The most the method for claim 1, wherein the first predefined number is five.
The most the method for claim 1, wherein the second predefined number is two.
The most the method for claim 1, wherein when HCS priority number more than one less than six time hold
Row probabilistic method.
8. the method for claim 1, also includes: select when mobile device is in indoor environment
Select the first localization method, wherein, identify the information about indoor environment based on HCS priority number.
9. the method for claim 1, also includes: select when mobile device is in outdoor environment
Select the second localization method, wherein, identify the information about outdoor environment based on HCS priority number.
The most the method for claim 1, wherein the 3rd localization method be cell recognition method,
At least one in enhancement mode difference method observing time and Wireless Fidelity WiFi alignment system WPS method.
11. the method for claim 1, wherein the 4th localization method be global position system GPS,
At least one in Assisted GPS method and satellite methods.
12. the method for claim 1, wherein cordless communication network be Long Term Evolution communication mark
At least one in standard and Release 8 version third generation wireless communication standard.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN1694/CHE/2010 | 2010-06-17 | ||
| IN1694CH2010 | 2010-06-17 | ||
| KR1020110042610A KR101776308B1 (en) | 2010-06-17 | 2011-05-04 | Method for identifying location of mobile device in wireless communication network |
| KR10-2011-0042610 | 2011-05-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102291816A CN102291816A (en) | 2011-12-21 |
| CN102291816B true CN102291816B (en) | 2016-12-14 |
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