WO2001082521A3 - Method and apparatus for a rate control in a high data rate communication system - Google Patents

Method and apparatus for a rate control in a high data rate communication system Download PDF

Info

Publication number
WO2001082521A3
WO2001082521A3 PCT/IB2001/000976 IB0100976W WO0182521A3 WO 2001082521 A3 WO2001082521 A3 WO 2001082521A3 IB 0100976 W IB0100976 W IB 0100976W WO 0182521 A3 WO0182521 A3 WO 0182521A3
Authority
WO
WIPO (PCT)
Prior art keywords
sinr
rate
data rate
data
communication system
Prior art date
Application number
PCT/IB2001/000976
Other languages
French (fr)
Other versions
WO2001082521A2 (en
Inventor
Nagabhushana T Sindhushayana
Rashid A Attar
Eduardo A S Esteves
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to AU72681/01A priority Critical patent/AU7268101A/en
Priority to KR1020027014215A priority patent/KR100815648B1/en
Priority to EP01951832A priority patent/EP1277303B1/en
Priority to BR0110254-0A priority patent/BR0110254A/en
Priority to JP2001579488A priority patent/JP5095899B2/en
Publication of WO2001082521A2 publication Critical patent/WO2001082521A2/en
Publication of WO2001082521A3 publication Critical patent/WO2001082521A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
    • H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
    • H04L1/002—Algorithms with memory of the previous states, e.g. Markovian models
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

A method and an apparatus for rate control in a high data rate (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which an access point (AP) may send data packets to an access terminal (AT). The data rate is selected to maintain targeted packet error rate (PER). The AT's open loop algorithm measures received signal to interference and noise ratio (SINR) at regular intervals, and uses the information to predict an average SINR over the next packet duration. The AT's closed loop algorithm measures a packet error rate (PER) of the received signal, and uses the PER to calculate a closed loop correction factor. The loop correction factor is added to the SINR value predicted by the open loop, resulting in an adjusted SINR. The AT maintains a look up table, which comprises a set of SINR thresholds that represent a minimum SINR necessary to successfully decode a packet at each data rate. The AT uses the adjusted set of SINR thresholds in the look up table to select the highest data rate, the SINR threshold of which is below the predicted SINR. The AT then requests, over the reverse link, that the AP send the next packet at this data-rate.
PCT/IB2001/000976 2000-04-24 2001-04-18 Method and apparatus for a rate control in a high data rate communication system WO2001082521A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU72681/01A AU7268101A (en) 2000-04-24 2001-04-18 Method and apparatus for a rate control in a high data rate communication system
KR1020027014215A KR100815648B1 (en) 2000-04-24 2001-04-18 Method and apparatus for a rate control in a high data rate communication system
EP01951832A EP1277303B1 (en) 2000-04-24 2001-04-18 Method and apparatus for a rate control in a high data rate communication system
BR0110254-0A BR0110254A (en) 2000-04-24 2001-04-18 Method and equipment for rate control in a high data rate communication system
JP2001579488A JP5095899B2 (en) 2000-04-24 2001-04-18 Method and apparatus for rate control in a high data rate communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/556,769 2000-04-24
US09/556,769 US6751199B1 (en) 2000-04-24 2000-04-24 Method and apparatus for a rate control in a high data rate communication system

Publications (2)

Publication Number Publication Date
WO2001082521A2 WO2001082521A2 (en) 2001-11-01
WO2001082521A3 true WO2001082521A3 (en) 2002-05-16

Family

ID=24222785

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000976 WO2001082521A2 (en) 2000-04-24 2001-04-18 Method and apparatus for a rate control in a high data rate communication system

Country Status (9)

Country Link
US (2) US6751199B1 (en)
EP (1) EP1277303B1 (en)
JP (1) JP5095899B2 (en)
KR (1) KR100815648B1 (en)
CN (2) CN101312391B (en)
AU (1) AU7268101A (en)
BR (1) BR0110254A (en)
TW (1) TW518896B (en)
WO (1) WO2001082521A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8873365B2 (en) 2002-10-25 2014-10-28 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8913529B2 (en) 2002-10-25 2014-12-16 Qualcomm Incorporated MIMO WLAN system

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245594B1 (en) * 2000-05-12 2007-07-17 Qualcomm Incorporated Method and apparatus for fast closed-loop rate adaptation in a high rate packet data transmission
US6760313B1 (en) * 2000-06-19 2004-07-06 Qualcomm Incorporated Method and apparatus for adaptive rate selection in a communication system
US7124193B1 (en) * 2000-08-24 2006-10-17 At&T Corp. Method of using link adaptation and power control for streaming services in wireless networks
US6760882B1 (en) * 2000-09-19 2004-07-06 Intel Corporation Mode selection for data transmission in wireless communication channels based on statistical parameters
US6802035B2 (en) * 2000-09-19 2004-10-05 Intel Corporation System and method of dynamically optimizing a transmission mode of wirelessly transmitted information
US6819660B2 (en) * 2000-11-30 2004-11-16 Qualcomm Inc Method and apparatus for determining optimum data rate on the reverse supplemental channel in wireless communications
US6810018B2 (en) * 2000-12-07 2004-10-26 Nortel Networks Limited Method and apparatus for load balancing in CDMA/HDR networks
GB2382748A (en) 2001-11-28 2003-06-04 Ipwireless Inc Signal to noise plus interference ratio (SNIR) estimation with corection factor
US7130311B2 (en) * 2001-12-28 2006-10-31 Nortel Networks Limited Adaptive data rate control for mobile data transfer
US6636568B2 (en) * 2002-03-01 2003-10-21 Qualcomm Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system
US7142562B2 (en) * 2002-07-01 2006-11-28 Nortel Networks Limited Adaptive data rate control for mobile data transfer for high throughput and guaranteed error rate
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US7020484B2 (en) * 2002-10-29 2006-03-28 Qualcomm Incorporated Controlling multiple modems in a wireless terminal using energy-per-bit determinations
US7016697B2 (en) * 2002-10-29 2006-03-21 Qualcomm Incorporated Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits
US7339994B2 (en) * 2002-11-25 2008-03-04 Texas Instruments Incorporated Method and apparatus for fast convergent power control in a spread spectrum communication system
KR100571862B1 (en) * 2003-02-17 2006-04-17 삼성전자주식회사 Wireless communication system and method including multiple antennae
US7215930B2 (en) * 2003-03-06 2007-05-08 Qualcomm, Incorporated Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication
US7885228B2 (en) * 2003-03-20 2011-02-08 Qualcomm Incorporated Transmission mode selection for data transmission in a multi-channel communication system
KR100956819B1 (en) * 2003-04-29 2010-05-11 엘지전자 주식회사 Method for determining a packet data rate
WO2005006568A2 (en) 2003-06-26 2005-01-20 Interdigital Technology Corporation Method for generating a channel quality indicator by biasing signal-to-interference ratio
KR100557190B1 (en) * 2003-11-28 2006-03-03 삼성전자주식회사 Apparatus and Method for Controlling Forward Data Transmission Rate in a Mobile Communication System
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7593339B2 (en) * 2004-07-12 2009-09-22 Qualcomm Incorporated Rate control for packet-based wireless communication
US7492722B2 (en) 2004-11-04 2009-02-17 Interdigital Technology Corporation Wireless communication method and apparatus for adaptively biasing channel quality indicators to maintain a desired block error rate
US7349504B2 (en) * 2005-03-18 2008-03-25 Navini Networks, Inc. Method and system for mitigating interference in communication system
US20060209763A1 (en) * 2005-03-21 2006-09-21 Emeott Stephen P Multi-mode link adaptation
US20060221847A1 (en) * 2005-03-29 2006-10-05 Dacosta Behram M Method and apparatus for selecting transmission modulation rates in wireless devices for A/V streaming applications
CN1845486B (en) * 2005-04-08 2010-05-05 财团法人工业技术研究院 Speed adjusting method via cross-level-analysis for WLAN
US7711033B2 (en) * 2005-04-14 2010-05-04 Telefonaktiebolaget Lm Ericsson (Publ) SIR prediction method and apparatus
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US20070053287A1 (en) * 2005-09-07 2007-03-08 Gang Li System and method for selecting data rates in a wireless communication system
KR101085710B1 (en) 2005-09-16 2011-11-21 삼성전자주식회사 Apparatus and method for selecting drc in mobile communication system
US8179869B2 (en) * 2007-03-06 2012-05-15 Intel Corporation Redundant multicast service in wireless network
US8102765B2 (en) 2007-06-22 2012-01-24 Microsoft Corporation Correlation-based rate adaptation for communication networks
KR100990366B1 (en) * 2007-12-10 2010-10-29 광주과학기술원 Method for Packet Transmission Scheduling in wireless Mesh Networks and Packet Transmission method using that
EP2255455B1 (en) * 2008-03-11 2017-07-05 Avago Technologies General IP (Singapore) Pte. Ltd. Method and system for dual mode operation in wireless networks
US8089894B2 (en) * 2008-05-19 2012-01-03 Qualcomm Incorporated Methods and systems for adaptive effective CINR reporting in a wireless communication system
US8619620B2 (en) * 2008-09-16 2013-12-31 Qualcomm Incorporated Methods and systems for transmission mode selection in a multi channel communication system
KR101572891B1 (en) * 2009-01-30 2015-11-30 엘지전자 주식회사 Method of adaptive selecting of CoMP scheme
WO2011113198A1 (en) 2010-03-17 2011-09-22 Qualcomm Incorporated Apparatus and method for interference mitigation
US8725145B2 (en) 2011-01-25 2014-05-13 Qualcomm Incorporated Mobile device requests of non-communication time periods to a wireless communication network
US8755356B1 (en) * 2011-05-17 2014-06-17 Sprint Spectrum L.P. Methods and systems for dynamically selecting requested forward-link data rate based on C/I ratio

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541955A (en) * 1992-11-06 1996-07-30 Pericle Communications Company Adaptive data rate modem
EP0899906A2 (en) * 1997-08-25 1999-03-03 Lucent Technologies Inc. System and method for measuring channel quality information

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5101501A (en) 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5511073A (en) 1990-06-25 1996-04-23 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5603096A (en) * 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
CA2206624A1 (en) * 1996-06-10 1997-12-10 Krzysztof Duch Method of establishing a spatially normalized communication path in a networked communications system
US5818826A (en) * 1996-06-17 1998-10-06 International Business Machines Corporation Media access control protocols in a wireless communication network supporting multiple transmission rates
DE69729784T2 (en) * 1996-06-27 2005-06-23 Ntt Docomo, Inc. ARRANGEMENT FOR TRANSMISSION CONTROL
US6104993A (en) * 1997-02-26 2000-08-15 Motorola, Inc. Apparatus and method for rate determination in a communication system
US5940439A (en) * 1997-02-26 1999-08-17 Motorola Inc. Method and apparatus for adaptive rate communication system
KR100238401B1 (en) * 1997-04-22 2000-01-15 김영환 Forward power control method in the mobile communication system
US6137789A (en) * 1997-06-26 2000-10-24 Nokia Mobile Phones Limited Mobile station employing selective discontinuous transmission for high speed data services in CDMA multi-channel reverse link configuration
JP3123961B2 (en) * 1997-11-14 2001-01-15 日本電気移動通信株式会社 Mobile communication system for performing wireless communication by W-CDMA
JP3397677B2 (en) * 1998-02-10 2003-04-21 松下電器産業株式会社 Transmission power control device and wireless communication device
JP2000049663A (en) * 1998-04-17 2000-02-18 Matsushita Electric Ind Co Ltd Radio communication device and transmission rate control method
JP3741866B2 (en) * 1998-06-05 2006-02-01 富士通株式会社 Adaptive modulation system
US6330533B2 (en) * 1998-08-24 2001-12-11 Conexant Systems, Inc. Speech encoder adaptively applying pitch preprocessing with warping of target signal
US6529482B1 (en) * 1999-06-30 2003-03-04 Qualcomm Inc. Method and apparatus for adjusting a signal-to-interference threshold in a closed loop power control communications system
US6426971B1 (en) * 1999-09-13 2002-07-30 Qualcomm Incorporated System and method for accurately predicting signal to interference and noise ratio to improve communications system performance
US6393276B1 (en) * 2000-01-12 2002-05-21 Telefonaktiebolaget Lm Ericsson Mobile station assisted forward link open loop power and rate control in a CDMA system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541955A (en) * 1992-11-06 1996-07-30 Pericle Communications Company Adaptive data rate modem
EP0899906A2 (en) * 1997-08-25 1999-03-03 Lucent Technologies Inc. System and method for measuring channel quality information

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8873365B2 (en) 2002-10-25 2014-10-28 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8913529B2 (en) 2002-10-25 2014-12-16 Qualcomm Incorporated MIMO WLAN system
US9240871B2 (en) 2002-10-25 2016-01-19 Qualcomm Incorporated MIMO WLAN system

Also Published As

Publication number Publication date
WO2001082521A2 (en) 2001-11-01
CN1459165A (en) 2003-11-26
JP2004520728A (en) 2004-07-08
BR0110254A (en) 2006-02-07
US20040179499A1 (en) 2004-09-16
KR20030036172A (en) 2003-05-09
TW518896B (en) 2003-01-21
EP1277303B1 (en) 2012-11-07
CN101312391B (en) 2011-09-07
AU7268101A (en) 2001-11-07
US7417957B2 (en) 2008-08-26
US6751199B1 (en) 2004-06-15
KR100815648B1 (en) 2008-03-20
JP5095899B2 (en) 2012-12-12
CN101312391A (en) 2008-11-26
EP1277303A2 (en) 2003-01-22
CN100414863C (en) 2008-08-27

Similar Documents

Publication Publication Date Title
WO2001082521A3 (en) Method and apparatus for a rate control in a high data rate communication system
ES2304524T3 (en) PROCEDURE AND APPLIANCE TO ESTIMATE THE POWER REQUIRED FOR THE TRANSMISSION OF DATA AT A SPEED IN A COMMUNICATIONS SYSTEM.
EP0861530B1 (en) Fast power control in a variable data rate mobile cdma communication system
EP1492263B1 (en) Radio communication apparatus and communication mode control method of a mobile communication system
EP1522154B1 (en) Adaptive gain adjustment control with feedback
CN101326830B (en) Method and system for adaptive encoding of real-time information in wireless networks
JP3990864B2 (en) Method and apparatus for adjusting a power control setpoint threshold in a wireless communication system
MXPA03011882A (en) Method and apparatus for selecting a serving sector in a data communication system.
US7024219B2 (en) Transmission power control apparatus and method in a wireless communication system
CA2430144A1 (en) Apparatus and method for providing optimal adaptive forward error correction in data communications
EP1527548A1 (en) Method and system for improving the reliability of quality feedback in a wireless communications system
MXPA06011869A (en) Power control for intermittently active data channels in a wireless communication system.
AU2004250932A1 (en) Method and apparatus for dynamic adjustment of rise-over-thermal (ROT) threshold for reverse link rate allocation
JP2005527147A5 (en)
NO20062819L (en) Access Point and WTRU Procedures for Controlling Transmission Power Levels in Uplink / Downlink Communication in a Wireless Communication System
WO2002063795A3 (en) Method and apparatus for determining the forward link closed loop power control set point in a wireless packet data communication system
EP0701334B1 (en) Method and device to measure the impulse response of a radio channel
Ofuji et al. Comparison of packet scheduling algorithms focusing on user throughput in high speed downlink packet access
Khansari et al. Robust low bit-rate video transmission over wireless access systems
IL155629A0 (en) Method and apparatus for reducing transmission power in a high data rate system
US7415655B2 (en) Method and apparatus for full rate erasure handling in CDMA
EP1460790A3 (en) System and method for link adaptation
KR20050070147A (en) Method and apparatus for power control on a discontinuous transmission channel in a cdma system
JP3858985B2 (en) Path diversity receiving apparatus and method for spread spectrum communication system
JP4314492B2 (en) Mobile communication system, radio base station, and program for executing transmission power control

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWE Wipo information: entry into national phase

Ref document number: 1020027014215

Country of ref document: KR

ENP Entry into the national phase

Ref country code: JP

Ref document number: 2001 579488

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 018156967

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2001951832

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001951832

Country of ref document: EP

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWP Wipo information: published in national office

Ref document number: 1020027014215

Country of ref document: KR

ENP Entry into the national phase

Ref document number: PI0110254

Country of ref document: BR