WO2006133414A3 - Avoiding hidden terminals in wireless local area networks - Google Patents

Avoiding hidden terminals in wireless local area networks Download PDF

Info

Publication number
WO2006133414A3
WO2006133414A3 PCT/US2006/022484 US2006022484W WO2006133414A3 WO 2006133414 A3 WO2006133414 A3 WO 2006133414A3 US 2006022484 W US2006022484 W US 2006022484W WO 2006133414 A3 WO2006133414 A3 WO 2006133414A3
Authority
WO
WIPO (PCT)
Prior art keywords
rts
reservation
local area
wireless local
area networks
Prior art date
Application number
PCT/US2006/022484
Other languages
French (fr)
Other versions
WO2006133414A2 (en
Inventor
Mathilde Benveniste
Original Assignee
Avaya Technology Corp
Mathilde Benveniste
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 Avaya Technology Corp, Mathilde Benveniste filed Critical Avaya Technology Corp
Priority to GB0800243A priority Critical patent/GB2443112B/en
Priority to CN2006800258036A priority patent/CN101356775B/en
Priority to DE112006001523T priority patent/DE112006001523B4/en
Publication of WO2006133414A2 publication Critical patent/WO2006133414A2/en
Publication of WO2006133414A3 publication Critical patent/WO2006133414A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • H04W74/0816—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA carrier sensing with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/407—Bus networks with decentralised control
    • H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

A method, apparatus and computer program product for preventing occurrences of the hidden mode problem are presented. A transmission request (CC-RTS 62) is received from a source node, the CC-RTS (62) frame including a reservation duration value indicating the length of time needed for a transmission reservation. A timer is adjusted for the period other nodes must refrain from transmitting on the channel (NAV) equal to a duration of a transmission request/transmission response (CC-RTS 62/CC-CTS 68) handshake. When the CC-RTS (62) has been denied, then a second CC-RTS (69) is received having a reservation duration value of zero, and when the CC-RTS (62) is accepted then the NAV is extended to remainder of the reservation duration value of the original CC-RTS (62) frame. The CC-RTS (62, 69) and CC-CTS (68) are sent at a more robust PHY mode than traffic frames.
PCT/US2006/022484 2005-06-08 2006-06-08 Avoiding hidden terminals in wireless local area networks WO2006133414A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0800243A GB2443112B (en) 2005-06-08 2006-06-08 Avoiding hidden terminals in wireless local area networks
CN2006800258036A CN101356775B (en) 2005-06-08 2006-06-08 Avoiding exposed node problems in wireless local area networks
DE112006001523T DE112006001523B4 (en) 2005-06-08 2006-06-08 Avoid hidden terminals in a wireless local area network

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US68833505P 2005-06-08 2005-06-08
US60/688,335 2005-06-08
US69052205P 2005-06-15 2005-06-15
US60/690,522 2005-06-15

Publications (2)

Publication Number Publication Date
WO2006133414A2 WO2006133414A2 (en) 2006-12-14
WO2006133414A3 true WO2006133414A3 (en) 2007-04-05

Family

ID=37499153

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2006/022485 WO2006133415A2 (en) 2005-06-08 2006-06-08 Avoiding exposed node problems in wireless local area networks
PCT/US2006/022484 WO2006133414A2 (en) 2005-06-08 2006-06-08 Avoiding hidden terminals in wireless local area networks

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2006/022485 WO2006133415A2 (en) 2005-06-08 2006-06-08 Avoiding exposed node problems in wireless local area networks

Country Status (7)

Country Link
US (2) US7656854B2 (en)
EP (1) EP1894428A4 (en)
JP (1) JP5129127B2 (en)
KR (2) KR20080021764A (en)
DE (1) DE112006001523B4 (en)
GB (1) GB2443112B (en)
WO (2) WO2006133415A2 (en)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7961749B2 (en) * 2005-08-18 2011-06-14 Samsung Electronics Co., Ltd. Signaling method and system for channel switching in a wireless local area network
JP4604916B2 (en) * 2005-08-29 2011-01-05 パナソニック株式会社 Wireless network system, wireless communication method, and wireless communication apparatus
US8102871B1 (en) * 2005-11-10 2012-01-24 Ozmo, Inc. Method and apparatus for medium reservation and medium reservation modification in a communication system
BRPI0710387A2 (en) 2006-04-24 2011-08-09 Interdigital Tech Corp Signaling method and procedure for employing a transmission opportunity in a wireless mesh network
US7940688B1 (en) * 2006-05-15 2011-05-10 Avaya Inc. Method and apparatus for canceling channel reservations in a wireless network
US7969920B2 (en) * 2006-05-18 2011-06-28 Xocyst Transfer Ag L.L.C. Communication roaming systems and methods
WO2008022175A2 (en) * 2006-08-15 2008-02-21 Comhouse Wireless Lp A node arbitrated media access control protocol for ad hoc broadcast networks carrying ephemeral information
KR101115438B1 (en) * 2006-11-10 2012-02-20 브로드콤 코포레이션 A serial clear to sendcts to selfcts2self messaging processure
KR101316621B1 (en) * 2007-01-11 2013-10-15 인하대학교 산학협력단 Method and apparatus for communicating of distributed network system in a cognitive radio technique
JP4888396B2 (en) * 2007-03-05 2012-02-29 ソニー株式会社 Wireless communication system, wireless communication apparatus, wireless communication method, and computer program
US8144676B2 (en) * 2007-09-04 2012-03-27 Conexant Systems, Inc. Network allocation
US20090138603A1 (en) * 2007-11-28 2009-05-28 Qualcomm Incorporated Protection for direct link setup (dls) transmissions in wireless communications systems
US8320358B2 (en) * 2007-12-12 2012-11-27 Qualcomm Incorporated Method and apparatus for resolving blinded-node problems in wireless networks
FR2928479B1 (en) * 2008-03-05 2011-07-01 Somfy Sas METHOD OF COMMUNICATING BETWEEN A FIRST NODE AND A SECOND NODE OF A DOMOTIC INSTALLATION
JP5173526B2 (en) * 2008-03-28 2013-04-03 株式会社東芝 Wireless system, wireless base station and wireless terminal
EP2286547B1 (en) * 2008-05-09 2017-07-19 Lg Electronics Inc. Apparatus and method for transmission opportunity in mesh network
KR101452504B1 (en) * 2008-06-18 2014-10-23 엘지전자 주식회사 Channel access mechanism for Very High Throughput (VHT) wireless local access network system and station supporting the channel access mechanism
US8737281B2 (en) 2008-06-18 2014-05-27 Thomson Licensing Apparatus for multicast transmissions in wireless local area networks
US8705383B2 (en) 2008-06-18 2014-04-22 Thomson Licensing Contention based medium reservation for multicast transmission in wireless local area networks
US8462686B2 (en) * 2008-06-23 2013-06-11 Thomson Licensing Apparatus for collision mitigation of multicast transmissions in wireless networks
PT2311220E (en) 2008-06-23 2013-09-23 Thomson Licensing Collision mitigation for multicast transmission in wireless local area networks
US9974065B2 (en) 2008-06-25 2018-05-15 Qualcomm Incorporated Dynamic control blanking in heterogeneous networks
US8472365B2 (en) * 2008-06-26 2013-06-25 Thomson Licensing Method and system for acknowledgement and retransmission of multicast data in wireless local area networks
MX2010014072A (en) * 2008-06-26 2011-04-11 Thomson Licensing Apparatus for requesting acknowledgement and transmitting acknowledgement of multicast data in wireless local area networks.
US9066267B2 (en) * 2008-08-29 2015-06-23 Intel Corporation Device, method and system of establishing a protected time during an allocated time
US20100100936A1 (en) * 2008-09-08 2010-04-22 Vladimir Alexander Brik Secure Wireless Network Using Radiometric Signatures
US8583048B2 (en) * 2008-09-25 2013-11-12 Skyphy Networks Limited Multi-hop wireless systems having noise reduction and bandwidth expansion capabilities and the methods of the same
FR2940568A1 (en) * 2008-12-22 2010-06-25 Thomson Licensing METHOD FOR TRANSMITTING IN A WIRELESS NETWORK AND CORRESPONDING COMMUNICATION MANAGEMENT METHOD
CN102349348B (en) 2009-03-09 2014-07-30 皇家飞利浦电子股份有限公司 Method for controlling medium access in a mesh network using allocation vectors and station carrying out such method
US8503359B2 (en) 2009-06-26 2013-08-06 Intel Corporation Use of delayed clear-to-send and denial-to-send in directional wireless networks
US9173234B2 (en) 2010-03-31 2015-10-27 Qualcomm Incorporated Protection mechanisms for multi-user MIMO transmissions
US8989066B2 (en) * 2010-03-31 2015-03-24 Qualcomm, Incorporated Protection mechanisms for multi-user MIMO transmissions
US9031054B2 (en) * 2010-07-09 2015-05-12 Nokia Corporation Reservation response and multi-user transmissions
US8681612B2 (en) * 2010-10-07 2014-03-25 Qualcomm Incorporated Methods and devices to implement a reduced contention period to facilitate channel access for access terminals operating in a wireless communication environment
US8958307B2 (en) 2010-12-25 2015-02-17 Intel Corporation Enabling coexistence of high-density and low-density transmissions
KR101762699B1 (en) * 2011-01-25 2017-07-28 삼성전자주식회사 Transmitting device, receiving device and communication method thereof
US9392469B2 (en) 2011-06-03 2016-07-12 Qualcomm Incorporated Systems and methods for receiver based clear channel assessment
US8923146B2 (en) * 2011-08-31 2014-12-30 Nokia Corporation Channel reservation procedure
CN103002591B (en) * 2011-09-15 2015-09-30 华为技术有限公司 A kind of the method for NAV control, device, system and node are carried out to node
US9137826B2 (en) * 2011-09-16 2015-09-15 Qualcomm Incorporated Apparatus and method for transmission and recovery modes for an RTS/CTS system that utilizes multichannels
CN102523603B (en) * 2011-12-27 2016-01-20 重庆大学 A kind of monitoring of isomerous wireless mesh network and method of estimation
MY164492A (en) 2012-12-06 2017-12-29 Mimos Berhad A system and method for routing in a network
WO2014179575A2 (en) * 2013-05-03 2014-11-06 Interdigital Patent Holdings, Inc. Methods for wifi sectorization mac enhancement
US10306672B2 (en) * 2013-05-03 2019-05-28 Qualcomm Incorporated Transmit opportunity (TXOP) based channel reuse
US9537688B2 (en) 2013-07-05 2017-01-03 Qualcomm Incorporated Methods and apparatus for clear channel assessment
US9337884B2 (en) * 2013-09-18 2016-05-10 Gwangju Institute Of Science And Technology Medium access control method in single channel wireless network environment
EP3085188A1 (en) * 2013-12-18 2016-10-26 Telefonaktiebolaget LM Ericsson (publ) Transmitting and receving wireless devices and respective methods performed thereby for transmission of data in a contention based wireless network
CN105474570A (en) 2014-01-21 2016-04-06 华为技术有限公司 Data transmission method and device
EP2950602B1 (en) * 2014-05-29 2017-04-26 Nxp B.V. Wireless network and method
EP3216297B1 (en) 2014-11-07 2020-05-20 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Media access control for license-assisted access
KR102441711B1 (en) * 2014-11-20 2022-09-13 한국전자통신연구원 Data communicating method in overlapping basic service sets environment
US9872298B2 (en) * 2015-04-16 2018-01-16 Qualcomm Incorporated System and method for reducing collisions in wireless networks
CN108141887B (en) 2015-09-28 2021-07-02 阿特拉斯全球技术有限责任公司 Apparatus and method for TXOP duration field in PHY header
US10149321B2 (en) 2016-09-30 2018-12-04 Qualcomm Incorporated Multiple timers for request to send and clear to send communications
US10165598B2 (en) 2016-12-14 2018-12-25 Aruba Networks, Inc. Wireless medium clearing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020071449A1 (en) * 2000-11-01 2002-06-13 Jin-Meng Ho Unified channel access for supporting quality of service (QoS) in a local area Network
US20020154653A1 (en) * 2001-01-02 2002-10-24 Mathilde Benveniste Random medium access methods with backoff adaptation to traffic

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5844905A (en) * 1996-07-09 1998-12-01 International Business Machines Corporation Extensions to distributed MAC protocols with collision avoidance using RTS/CTS exchange
US7054329B2 (en) * 2000-07-07 2006-05-30 Koninklijke Philips Electronics, N.V. Collision avoidance in IEEE 802.11 contention free period (CFP) with overlapping basic service sets (BSSs)
US7305004B2 (en) * 2001-01-16 2007-12-04 At&T Corp. Interference suppression methods for 802.11
US7046690B2 (en) * 2001-01-16 2006-05-16 At&T Corp. Interference suppression methods for 802.11
US20020172186A1 (en) * 2001-04-09 2002-11-21 Peter Larsson Instantaneous joint transmit power control and link adaptation for RTS/CTS based channel access
US7164671B2 (en) * 2001-12-27 2007-01-16 Koninklijke Philips Electronics N.V. Overlapping network allocation vector (ONAV) for avoiding collision in the IEEE 802.11 WLAN operating under HCF
US6693888B2 (en) * 2001-06-06 2004-02-17 Networks Associates Technology, Inc. Method and apparatus for filtering that specifies the types of frames to be captured and to be displayed for an IEEE802.11 wireless LAN
US7161951B1 (en) * 2001-06-12 2007-01-09 At&T Corp. Mechanism for implementing virtual carrier sense
US7245605B2 (en) * 2001-11-02 2007-07-17 At&T Corp. Preemptive packet for maintaining contiguity in cyclic prioritized multiple access (CPMA) contention-free sessions
DE10214117B4 (en) * 2002-03-28 2005-06-23 Siemens Ag Adaptive modulation and other extensions of the physical layer in multiple access systems
JP2004023564A (en) * 2002-06-18 2004-01-22 Canon Inc Device and method for controlling radio communication
US7031336B2 (en) * 2002-08-26 2006-04-18 Colubris Networks, Inc. Space-time-power scheduling for wireless networks
US20040162024A1 (en) * 2003-02-14 2004-08-19 Wentink Maarten Menzo Embedding class of service information in MAC control frames
JP4666890B2 (en) * 2003-04-28 2011-04-06 ソニー株式会社 COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION DEVICE
KR100823467B1 (en) * 2003-06-06 2008-04-21 메시네트웍스, 인코포레이티드 System and method to provide fairness and service differentiation in ad-hoc networks
US7315528B2 (en) * 2003-08-11 2008-01-01 Agere Systems Inc. Management of frame bursting
US8274961B2 (en) * 2003-10-24 2012-09-25 Sony Corporation Apparatus and associated methodology of adjusting a RTS/CTS transmission protocol
JP4005974B2 (en) * 2004-01-09 2007-11-14 株式会社東芝 COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION SYSTEM
JP4266192B2 (en) * 2004-03-05 2009-05-20 株式会社東芝 Wireless communication apparatus and wireless communication method
US7965691B2 (en) * 2004-06-01 2011-06-21 Broadcom Corporation Network time reservation cancellation
US20070077936A1 (en) * 2004-06-29 2007-04-05 Mitsubishi Denki Kabushiki Kaisha Wireless base station and wireless communication system
US7330457B2 (en) * 2004-10-07 2008-02-12 Polytechnic University Cooperative wireless communications
CN100477613C (en) * 2004-11-25 2009-04-08 都科摩（北京）通信技术研究中心有限公司 Distributed wireless access method and apparatus based on network distribution vector table
US7768988B2 (en) * 2005-02-22 2010-08-03 Intel Corporation Method and apparatus to perform network medium reservation in a wireless network
US7843819B1 (en) * 2005-03-29 2010-11-30 Avaya Inc. Protocol for wireless multi-channel access control
KR101175813B1 (en) * 2005-06-02 2012-08-24 삼성전자주식회사 System and method of congestion control in wireless mesh networks
US7796566B2 (en) * 2005-06-22 2010-09-14 Texas Instruments Incorporated Methods and apparatus to perform dynamic channel management and dynamic bandwidth changes in wireless local area networks
US7385961B2 (en) * 2005-06-27 2008-06-10 Intel Corporation Contending for the medium with a mixture of backwards-compatible wireless devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020071449A1 (en) * 2000-11-01 2002-06-13 Jin-Meng Ho Unified channel access for supporting quality of service (QoS) in a local area Network
US20020154653A1 (en) * 2001-01-02 2002-10-24 Mathilde Benveniste Random medium access methods with backoff adaptation to traffic

Also Published As

Publication number Publication date
WO2006133414A2 (en) 2006-12-14
EP1894428A2 (en) 2008-03-05
US7616655B2 (en) 2009-11-10
GB2443112B (en) 2010-01-06
DE112006001523T5 (en) 2008-07-24
JP5129127B2 (en) 2013-01-23
KR20080016943A (en) 2008-02-22
KR20080021764A (en) 2008-03-07
DE112006001523B4 (en) 2012-09-06
WO2006133415A2 (en) 2006-12-14
WO2006133415A3 (en) 2007-05-24
EP1894428A4 (en) 2011-12-28
US20070002814A1 (en) 2007-01-04
GB0800243D0 (en) 2008-02-13
US7656854B2 (en) 2010-02-02
JP2009510803A (en) 2009-03-12
GB2443112A (en) 2008-04-23
US20070002887A1 (en) 2007-01-04

Similar Documents

Publication Publication Date Title
WO2006133414A3 (en) Avoiding hidden terminals in wireless local area networks
WO2003091888A3 (en) System, method, and product for managing data transfers in a network
AU2002340307A1 (en) Method and apparatus for managing congestion in a data communication network
EP1864517A4 (en) Method and apparatus for operating a wireless pan network using an overlay protocol that enhances co-existence with a wireless lan network
WO2001065773A3 (en) Scheme for managing overlapping wireless computer networks
WO2004040825A3 (en) Re-formatting variable-rate vocoder frames for inter-system transmissions
WO2001097554A3 (en) System, method and computer program product for charging for competitive ip-over-wireless services
WO2007002363A3 (en) Method and apparatus for power saving in beacon generation of wireless networks in ad hoc mode
WO2004034627A3 (en) System and method for buffer management in a packet-based network
WO2008107851A3 (en) Apparatus, method and computer program product providing neighbor discovery, handover procedure and relay zone configuration for relay stations in a multi-hop network
TWI264955B (en) Wireless LAN communication system, wireless LAN communication method, and medium for recording wireless LAN communication program
MY136651A (en) Systems and methods for contention control in wireless networks
EP1566921A4 (en) A method, a system and a terminal for realizing presenting information interaction of the wireless lan users
WO2007037922A3 (en) Semi-active state for reducing channel establishment delay
AU2003217931A1 (en) Method and apparatus for header compression in a wireless lan
WO2006031465A3 (en) Method and apparatus for efficient neighbor cell measurement
WO2004019539A3 (en) System and method for medium access control in a wireless network
WO2004075467A3 (en) Method and apparatus for using a traffic channel for communications of control data in a wireless communication system
WO2002049372A3 (en) Radio link monitoring in a telecommunications network
US7920485B2 (en) Unsupervised traffic estimation for low-power media streaming
WO2004093369A3 (en) Apparatus and method to improve goodput in unreliable networks
WO2003003674A3 (en) REDUCING POWER CONSUMPTION IN PACKET BASED NETWORKS WITH QUALITY OF SERVICE (QoS) FEATURES
WO2001089153A3 (en) Method for reserving isochronous resources in a wireless network
WO2005039088A3 (en) Channel allocation extension in wireless communications networks and methods
UA84285C2 (en) Packet synhronization with delayed acknowledgment in wireless networks

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680025803.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1120060015230

Country of ref document: DE

ENP Entry into the national phase

Ref document number: 0800243

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20060608

WWE Wipo information: entry into national phase

Ref document number: 0800243.8

Country of ref document: GB

Ref document number: 1020087000343

Country of ref document: KR

122 Ep: pct application non-entry in european phase

Ref document number: 06784706

Country of ref document: EP

Kind code of ref document: A2

RET De translation (de og part 6b)

Ref document number: 112006001523

Country of ref document: DE

Date of ref document: 20080724

Kind code of ref document: P

WWE Wipo information: entry into national phase

Ref document number: DE

REG Reference to national code

Ref country code: DE

Ref legal event code: 8607