WO2007094309A1 - 移動局および無線アクセスネットワーク装置並びにモビリティ制御方法 - Google Patents
移動局および無線アクセスネットワーク装置並びにモビリティ制御方法 Download PDFInfo
- Publication number
- WO2007094309A1 WO2007094309A1 PCT/JP2007/052501 JP2007052501W WO2007094309A1 WO 2007094309 A1 WO2007094309 A1 WO 2007094309A1 JP 2007052501 W JP2007052501 W JP 2007052501W WO 2007094309 A1 WO2007094309 A1 WO 2007094309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radio channel
- channel state
- mobile station
- threshold
- radio
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 12
- 238000004891 communication Methods 0.000 claims abstract description 32
- 238000012935 Averaging Methods 0.000 claims abstract description 18
- 238000010295 mobile communication Methods 0.000 claims description 9
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 14
- 238000012545 processing Methods 0.000 description 13
- 238000012508 change request Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000004904 shortening Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
- H04W36/0044—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of quality context information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
Definitions
- Mobile station radio access network apparatus, and mobility control method
- the present invention relates to a mobile station, a radio access network apparatus, and a mobility control method.
- handover control is performed in which a cell to be connected is appropriately switched as a user moves.
- the mobile station measures the propagation status of the connected cell and neighboring cells, and performs handover based on the measurement result.
- the neighboring cell is a cell having the same frequency as the currently connected cell, a cell being operated by the same base station apparatus, and a frequency different from that of the currently connected cell.
- the cell being operated the same frequency as the currently connected cell, but operating at a different base station device at a different frequency from the cell being operated by a different base station device and the cell being currently connected. Is at least one of the cells
- HSDPA High Speed Downlink Packet Access
- mobile communication is performed to perform link adaptation following high-speed fading, for example, transmission power control and AMC (Adaptive Modulation and Coding).
- AMC Adaptive Modulation and Coding
- Stations frequently report the radio channel status of connected cells (hereinafter referred to as CQI (Channel Quality Indicator (CQI))) to the MAC (Media Access Control) Entity of the connected base station.
- CQI Channel Quality Indicator
- the mobile station measures the E / ⁇ or path loss of the common pilot channel of the cell to which it connects and the neighboring cells, or RRC (Radio Resour ce Control) is instructed to report measurement results periodically, the measurement results are periodically reported to the radio network controller using RRC messages. If the report conditions are specified in RRC, the mobile station compares the report conditions with the measurement results, and if the conditions are satisfied, the mobile station reports that the conditions are satisfied as an RRC message. Disclosure of the invention
- the present invention has been made to solve the above-described problems, and its purpose is to reduce the processing load of the device in which the RRC Entity is mounted while shortening the processing time of the handover control. It is an object of the present invention to provide a mobile station, a radio access network apparatus, and a mobility control method that can be used.
- the mobile station of the present invention provides:
- a wireless channel state measuring means for measuring a wireless channel state
- Radio channel state averaging means for averaging measured radio channel states for a predetermined period
- Wireless access network device power wireless channel state threshold storage means for storing a specified wireless channel state threshold and a message type
- a wireless channel state comparison means for comparing the averaged wireless channel state with the threshold
- Radio channel status reporting means for reporting to the radio access network device an identifier of a cell whose averaged radio channel status is equal to or greater than the threshold value and a radio channel status;
- One of the features is to have [0010] By configuring in this way, it is possible to extend the CQI report, which was previously reported only for connected cells, to the CQI report for multiple cells with a threshold value or more. For this reason, some mobility control is possible even with MAC Entity, speeding up mobility control, and reducing the processing load on devices that process RRC!
- a radio access network apparatus includes:
- a wireless channel state threshold notification means for notifying information indicating a report message type together with a reception level threshold
- communication cell changing means for instructing to change the communication cell
- Mobile station power based on the reported radio channel state mobile station identifier notifying means for notifying the mobile station identifier used in the cell after the change
- One of the features is to have
- the CQI report that has been reported only for connected cells in the past can be expanded to a CQI report for one or more cells that have exceeded the threshold value. For this reason, some mobility control such as cell change and mobile station ID allocation becomes possible by using CQI report controlled by MA C Entity, and V and R are processed by high-speed mobility control and RRC. The processing load on the apparatus can be reduced.
- a mobile communication system empowering the present invention includes:
- a wireless channel state measuring means for measuring a wireless channel state
- Radio channel state averaging means for averaging measured radio channel states for a predetermined period
- Radio access network apparatus power Radio channel state threshold storage means for storing a specified radio channel state threshold and a message type
- a wireless channel state comparison means for comparing the averaged wireless channel state with the threshold
- Radio channel status reporter for reporting to the radio access network device the identifier and radio channel status of the cell whose averaged radio channel status is equal to or greater than the threshold. Stepped
- the radio access network device The radio access network device
- a wireless channel state threshold notification means for notifying information indicating a report message type together with a reception level threshold
- communication cell changing means for instructing to change the communication cell
- Mobile station power based on the reported radio channel state mobile station identifier notifying means for notifying the mobile station identifier used in the cell after the change
- One of the features is to have
- a mobility control method empowering the present invention includes:
- Radio access network device power A radio channel state threshold storage step for storing a specified radio channel state threshold and a message type
- a radio channel condition comparison step for comparing the averaged radio channel condition with the threshold
- a radio channel state reporting step for reporting an identifier of a cell whose averaged radio channel state is equal to or greater than the threshold and a radio channel state to a radio access network device;
- a wireless channel state threshold notification step for notifying information indicating a report message type together with a reception level threshold
- a communication cell change step for instructing the change of the communication cell
- the mobile station identifier notification step for notifying the mobile station identifier to be used in the cell after the change based on the reported radio channel state.
- One of the features is to have
- the cell change procedure in some cell change procedures, can be performed at high speed, and the processing load of the apparatus that processes RRC can be reduced.
- a mobile station, a radio access network apparatus, and a mobility control method can be realized.
- FIG. 1 is a block diagram showing a mobile communication system according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing a mobile station that works in one embodiment of the present invention.
- FIG. 3 is a block diagram showing a radio channel state threshold storage unit of a mobile station that works according to an embodiment of the present invention.
- FIG. 4A is a format diagram showing a radio channel state report signal of a mobile station according to an embodiment of the present invention.
- FIG. 4B is a format diagram showing a radio channel state report signal of a mobile station according to an embodiment of the present invention.
- FIG. 5 is a block diagram showing a radio access network apparatus according to an embodiment of the present invention.
- FIG. 6 is a diagram showing a cell configuration related to an embodiment of the present invention.
- FIG. 7 is a block diagram showing a radio access network apparatus according to an embodiment of the present invention.
- FIG. 8A is an explanatory diagram showing communication cell change between cells in the same radio access network device according to one embodiment of the present invention.
- FIG. 8B is a flowchart showing communication cell change between cells in the same radio access network device according to one embodiment of the present invention.
- the mobile communication system includes a mobile station 100 and a radio access network device 200.
- the mobile station 100 and the wireless access network device 200 can perform wireless communication with each other by at least a shared data channel.
- radio access network apparatus 200 has a radio base station function and directly performs radio communication with mobile station 100.
- the radio access network device 200 does not have the function of a radio base station, and prepares one or more radio base stations controlled by the radio access network device 200, and communicates with the mobile station 100 via these base stations. You can do it!
- the mobile station 100 includes a transmission / reception unit 160, a radio channel state measurement unit 150 connected to the transmission / reception unit 160, a radio channel state averaging unit 140 connected to the radio channel state measurement unit 150, and a radio channel State averaging unit 140 Radio channel state comparison unit connected to 140 A radio channel state threshold storage unit 130 connected to the radio channel state comparison unit 120, and a radio channel state report signal generation unit 110 connected to the radio channel state comparison unit 120 and the transmission / reception unit 160.
- Radio channel state measurement section 150 measures the radio channel states of the connected cell and neighboring cells, and inputs the measured radio channel state to radio channel state averaging section 140.
- the radio channel state may be CQI or E of the common pilot channel.
- the neighboring cell may be a cell notified as broadcast information or individual control information.
- Radio channel state averaging section 140 averages the measured radio channel state for a predetermined period and inputs the average to radio channel state comparison section 120.
- Radio channel state report storage section 130 stores a threshold value of a radio channel state specified by radio access network apparatus 200 and a message type to be reported.
- the radio channel state report storage unit 130 stores a CQI report and an RRC message as report message types.
- the radio channel state report threshold storage unit 130 sets the reported radio channel state threshold (report threshold) and the report message type (report message type) to the radio access network device. Stored for each cell group grouped by 200.
- Radio channel state comparison section 120 has an averaged radio channel state input by radio channel state averaging section 140 and a radio specified for the cell group to which the cell whose radio channel state is measured belongs. Compared with the channel state threshold value, if the averaged radio channel state is equal to or greater than the threshold value, the information indicating that the threshold value is equal to or greater than the threshold value and the message type to be reported are generated. Enter in part 110. The information indicating that the value is equal to or greater than the threshold may be the averaged radio channel information input to the radio channel state comparison unit 120.
- Radio channel state report signal generation section 110 generates a report signal based on information indicating the result of comparison by radio channel state comparison section 120 and the message type to be reported. For example, when there are a plurality of message types to be reported, the radio channel state report signal generator 110 separates each message type as shown in FIGS. 4A and 4B. A message is reported to the radio access network device as a message. For example, as shown in FIG. 4A, radio channel state report signal generation section 110 generates a cell identifier, for example, information indicating a cell number and a cell CQI indicated by the cell identifier, as a CQI report. In addition, as shown in FIG. 4B, the radio channel state report signal generation unit 110 uses a cell identifier and a cell E indicated by the cell identifier as an RRC message, for example, a measurement report.
- RRC message for example, a measurement report.
- the report signal is transmitted as the message type specified by the wireless access network device 200, the MAC control signal (eg, C QI report), and the RRC control signal (eg, Measurement Report). May be.
- Radio access network apparatus 200 includes transmission / reception unit 210, radio channel state threshold notification signal generation unit 250 connected to transmission / reception unit 210, communication cell change request determination unit 220 connected to transmission / reception unit 210, A mobile station identifier selection unit 230 connected to the communication cell change request determination unit 220, a change request signal generation unit 240 connected to the communication cell change request determination unit 220, the mobile station identifier selection unit 230, and the transmission / reception unit 210. Prepare.
- Communication cell change request determination section 220 determines whether or not a communication cell change is necessary based on the radio channel state reported from mobile station 100. This determination may be made for the report value of one radio channel status !, and it is determined that the communication cell needs to be changed only when the radio channel status is reported multiple times in succession. You can also set communication cell change conditions in the radio access network device.
- the mobile station identifier selecting unit 230 is an identifier of the mobile station used in the newly set cell. Make a selection.
- the entity that selects the mobile station identifier may vary depending on the message type reported from the mobile station 100. For example, in the case of CQI reporting, the MAC entity selects the mobile station identifier, and if there is a report in the RRC message, the RRC entry The entity may select the mobile station identifier. Also, when the RRC entity selects a mobile station identifier, the mobile station identifier used in the MAC entity may be included as part of the RRC message!
- the change request signal generation unit 240 when the communication cell change information determined by the communication cell change request determination unit 220 and a new cell are set, the mobile station identifier selected by the mobile station identifier selection unit 230. Is generated to notify the mobile station.
- Radio channel state report threshold notification signal generation section 250 generates a signal for notifying a threshold to be compared with the radio channel state measured in mobile station 100.
- Radio channel state threshold notification signal generation section 250 may set this threshold for each cell group in which one or a plurality of cell forces are also configured.
- Each cell group may be divided according to the difference of the radio access network device 200, may be divided according to the connected frequency and other frequencies, or may be divided between the same frequency and other frequencies of the same radio access network device. It may be divided.
- cell group 0 and cell group 1 are grouped, cell group 0 includes cell 0, cell 1 and cell 2, cell group 1 includes cell 3, cell 4 and The case where cell 5 is included will be described.
- radio channel state threshold notification signal generation section 250 will be described with reference to FIG. 3 when the cell group is divided into cells of the same frequency and other cells in the same radio access network device. It is possible to generate a threshold notification signal having the above configuration. For example, CQI reporting is applied to cell group 0 as the message type, and RRC Message is applied to cell group 1.
- the radio access network apparatus 200 may be realized by a radio control apparatus 201 and a radio base station apparatus 202 as shown in FIG. 7, for example.
- the radio access network apparatus 200 has the function of the radio control apparatus 201 and the function of the radio base station apparatus 202 has been described.
- the radio control apparatus 201 and the radio base station apparatus 202 may be prepared separately, but it is desirable to prepare them in the same apparatus from the viewpoint of shortening the delay associated with data transmission.
- Channel state report signal generation section 110 reports CQI for cell 2 only to radio access network apparatus 200 (step S804).
- the mobile station identifier selection unit 230 of the radio access network device 200 has a mobile station identifier (C—RNTI: Cell) used by the mobile station 100 in the cell 2. Assign Specific Radio Network Temporary Identifier).
- C—RNTI Cell
- Assign Specific Radio Network Temporary Identifier since there is no CQI report from cell 1, communication cell change request determination section 220 determines that mobile station identifier used by mobile station 100 in cell 1 is deleted by mobile station 100. Instruct (step S806).
- the change request signal generation unit 240 of the radio access network device 200 assigns the mobile station identifier (C—RNTI) used by the mobile station 100 in the cell 2 in the MAC, and uses the mobile station 100 in the cell 1.
- the mobile station 100 notifies the mobile station 100 that the mobile station identifier that has been deleted has been deleted (step S808).
- the mobile station identifier used in cell 2 is assigned in mobile station 100, the mobile station can communicate in cell 2 thereafter.
- the radio channel state report signal generation unit 110 of the mobile station 100 exceeds the threshold specified by the radio access network device 200 only in the radio channel state of the cell 2, the mobile station 100 wirelessly accesses the CQI of only the cell 2 Report to network device 200 (step S810)
- the mobile station identifier used in the cell change instruction and the destination cell without exchanging messages in RRC. Can be assigned by MAC. For this reason, It is possible to shorten the processing time associated with the change, and to reduce the processing load of RRC in the radio access network device.
- the mobile station, the radio access network device, and the mobility control method according to the present invention can be applied to a radio communication system.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800134127A CN101422062B (zh) | 2006-02-14 | 2007-02-13 | 移动台和无线接入网络装置以及移动性控制方法 |
MX2008010168A MX2008010168A (es) | 2006-02-14 | 2007-02-13 | Estacion movil, red de acceso inalambrica y metodo de control de movilidad. |
EP07714083A EP1986451A4 (en) | 2006-02-14 | 2007-02-13 | MOBILE STATION, WIRELESS ACCESS NETWORK AND MOBILITY CONTROL METHOD |
BRPI0707828-5A BRPI0707828A2 (pt) | 2006-02-14 | 2007-02-13 | estaÇço màvel, aparelho de rede de acesso de rÁdio e mÉtodo de controle de mobilidade |
US12/278,931 US8000300B2 (en) | 2006-02-14 | 2007-02-13 | Mobile station, radio access network apparatus and mobility control method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-037288 | 2006-02-14 | ||
JP2006037288A JP4795045B2 (ja) | 2006-02-14 | 2006-02-14 | 移動局および無線アクセスネットワーク装置並びにモビリティ制御方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007094309A1 true WO2007094309A1 (ja) | 2007-08-23 |
Family
ID=38371489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/052501 WO2007094309A1 (ja) | 2006-02-14 | 2007-02-13 | 移動局および無線アクセスネットワーク装置並びにモビリティ制御方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US8000300B2 (ja) |
EP (1) | EP1986451A4 (ja) |
JP (1) | JP4795045B2 (ja) |
KR (1) | KR20080102168A (ja) |
CN (1) | CN101422062B (ja) |
BR (1) | BRPI0707828A2 (ja) |
MX (1) | MX2008010168A (ja) |
RU (1) | RU2008136542A (ja) |
TW (1) | TW200738023A (ja) |
WO (1) | WO2007094309A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010113490A1 (ja) * | 2009-03-31 | 2010-10-07 | パナソニック株式会社 | 無線通信装置、無線通信基地局、及び無線通信システム |
JP2015534314A (ja) * | 2012-08-30 | 2015-11-26 | ノキア テクノロジーズ オサケユイチア | ノード能力の遠隔観察に基づく意思決定 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5287083B2 (ja) * | 2008-09-24 | 2013-09-11 | 富士通株式会社 | 基地局及び発呼受付方法 |
US8411776B2 (en) * | 2009-12-08 | 2013-04-02 | Futurewei Technologies, Inc. | System and method for quantization of channel state vectors |
KR101831281B1 (ko) | 2010-04-06 | 2018-02-23 | 삼성전자주식회사 | 이동통신 시스템에서 스케줄링 정보를 처리하는 방법 및 장치 |
US9414269B2 (en) | 2010-05-14 | 2016-08-09 | Blackberry Limited | Systems and methods of transmitting measurement reports |
WO2013077052A1 (ja) * | 2011-11-22 | 2013-05-30 | 住友電気工業株式会社 | 無線基地局装置、無線端末装置、通信システム、通信制御方法および通信制御プログラム |
JP6111529B2 (ja) * | 2011-11-22 | 2017-04-12 | 住友電気工業株式会社 | 無線基地局装置、通信システム、通信制御方法および通信制御プログラム |
US20130324075A1 (en) * | 2012-06-05 | 2013-12-05 | Nokia Siemens Networks Oy | Data Loading Control |
KR101427101B1 (ko) * | 2013-08-06 | 2014-08-07 | 에스케이텔레콤 주식회사 | 무선랜 통신을 제어하기 위한 장치, 이를 위한 방법 및 이 방법이 기록된 컴퓨터 판독 가능한 기록매체 |
WO2015042890A1 (zh) * | 2013-09-27 | 2015-04-02 | 华为技术有限公司 | 小区切换的控制设备及方法 |
EP4220993A1 (en) * | 2014-05-22 | 2023-08-02 | Kyocera Corporation | Assignment of communication resources in an unlicensed frequency band to equipment operating in a licensed frequency band |
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2006
- 2006-02-14 JP JP2006037288A patent/JP4795045B2/ja not_active Expired - Fee Related
-
2007
- 2007-02-13 BR BRPI0707828-5A patent/BRPI0707828A2/pt not_active IP Right Cessation
- 2007-02-13 US US12/278,931 patent/US8000300B2/en not_active Expired - Fee Related
- 2007-02-13 EP EP07714083A patent/EP1986451A4/en not_active Withdrawn
- 2007-02-13 CN CN2007800134127A patent/CN101422062B/zh not_active Expired - Fee Related
- 2007-02-13 MX MX2008010168A patent/MX2008010168A/es not_active Application Discontinuation
- 2007-02-13 KR KR1020087021953A patent/KR20080102168A/ko not_active Application Discontinuation
- 2007-02-13 WO PCT/JP2007/052501 patent/WO2007094309A1/ja active Application Filing
- 2007-02-13 RU RU2008136542/09A patent/RU2008136542A/ru not_active Application Discontinuation
- 2007-02-14 TW TW096105507A patent/TW200738023A/zh unknown
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JP2006025432A (ja) * | 2004-07-07 | 2006-01-26 | Lucent Technol Inc | 無線通信用の移動局とセルの間で無線接続を確立または解除すること |
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WO2010113490A1 (ja) * | 2009-03-31 | 2010-10-07 | パナソニック株式会社 | 無線通信装置、無線通信基地局、及び無線通信システム |
JP2015534314A (ja) * | 2012-08-30 | 2015-11-26 | ノキア テクノロジーズ オサケユイチア | ノード能力の遠隔観察に基づく意思決定 |
US9781622B2 (en) | 2012-08-30 | 2017-10-03 | Nokia Technologies Oy | Decision making based on remote observation of node capabilities |
Also Published As
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EP1986451A1 (en) | 2008-10-29 |
TW200738023A (en) | 2007-10-01 |
CN101422062A (zh) | 2009-04-29 |
MX2008010168A (es) | 2008-10-01 |
RU2008136542A (ru) | 2010-03-20 |
US8000300B2 (en) | 2011-08-16 |
KR20080102168A (ko) | 2008-11-24 |
JP2007221276A (ja) | 2007-08-30 |
JP4795045B2 (ja) | 2011-10-19 |
US20100188985A1 (en) | 2010-07-29 |
BRPI0707828A2 (pt) | 2011-05-10 |
EP1986451A4 (en) | 2013-02-20 |
CN101422062B (zh) | 2011-07-06 |
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