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ATE551799T1 - Verfahren zu einem notfälligen gastzugang zu einem drahtlosen netzwerk - Google Patents

Verfahren zu einem notfälligen gastzugang zu einem drahtlosen netzwerk

Info

Publication number
ATE551799T1
ATE551799T1 AT06360015T AT06360015T ATE551799T1 AT E551799 T1 ATE551799 T1 AT E551799T1 AT 06360015 T AT06360015 T AT 06360015T AT 06360015 T AT06360015 T AT 06360015T AT E551799 T1 ATE551799 T1 AT E551799T1
Authority
AT
Austria
Prior art keywords
emergency
lan
terminal
data packets
ssid
Prior art date
Application number
AT06360015T
Other languages
English (en)
Inventor
Anne-Laure Selignan
Original Assignee
Alcatel Lucent
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 Alcatel Lucent filed Critical Alcatel Lucent
Application granted granted Critical
Publication of ATE551799T1 publication Critical patent/ATE551799T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/73—Access point logical identity
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Alarm Systems (AREA)
AT06360015T 2006-04-29 2006-04-29 Verfahren zu einem notfälligen gastzugang zu einem drahtlosen netzwerk ATE551799T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06360015A EP1850532B1 (de) 2006-04-29 2006-04-29 Verfahren zu einem notfälligen Gastzugang zu einem drahtlosen Netzwerk

Publications (1)

Publication Number Publication Date
ATE551799T1 true ATE551799T1 (de) 2012-04-15

Family

ID=36780758

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06360015T ATE551799T1 (de) 2006-04-29 2006-04-29 Verfahren zu einem notfälligen gastzugang zu einem drahtlosen netzwerk

Country Status (9)

Country Link
US (1) US7877785B2 (de)
EP (1) EP1850532B1 (de)
JP (1) JP4913209B2 (de)
KR (1) KR101226042B1 (de)
CN (1) CN101064655B (de)
AT (1) ATE551799T1 (de)
ES (1) ES2381392T3 (de)
PL (1) PL1850532T3 (de)
WO (1) WO2007124987A1 (de)

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8682279B2 (en) * 2004-05-07 2014-03-25 Interdigital Technology Corporation Supporting emergency calls on a wireless local area network
CN101296509B (zh) * 2007-04-28 2012-12-12 华为技术有限公司 紧急通信业务实现方法、系统及其相关设备
US20080281696A1 (en) 2007-05-11 2008-11-13 Verizon Services Organization Inc. Systems and methods for using dns records to provide targeted marketing services
JP2009219076A (ja) * 2008-03-13 2009-09-24 Nec Corp Ｉｐ電話システムにおけるゲートウェイルータおよび緊急呼の優先制御方法
DE102008017136B4 (de) * 2008-04-03 2013-01-31 Siemens Aktiengesellschaft Vorrichtung zum Bereitstellen eines Dienstes für ein mobiles Endgerät über eine WLAN-Verbindung
US9148769B2 (en) 2008-05-07 2015-09-29 Qualcomm Incorporated System, apparatus and method to enable mobile stations to identify calls based on predetermined values set in a call header
EP2335176A1 (de) * 2008-08-20 2011-06-22 Wherepro, LLC Datenpaketgenerator zur erzeugung von passcodes
US20100115624A1 (en) * 2008-11-05 2010-05-06 Appsware Wireless, Llc Method and system for securing data from a point of sale device over a lan
US20100115599A1 (en) * 2008-11-05 2010-05-06 Appsware Wireless, Llc Method and system for securing data from a point of sale device over an external network
US20100114723A1 (en) * 2008-11-05 2010-05-06 Appsware Wireless, Llc Method and system for providing a point of sale network within a lan
US20100115127A1 (en) * 2008-11-05 2010-05-06 Appsware Wireless, Llc Method and system for securing data from a non-point of sale device over a lan
US8732813B2 (en) * 2008-11-05 2014-05-20 Apriva, Llc Method and system for securing data from an external network to a non point of sale device
US8966610B2 (en) * 2008-11-05 2015-02-24 Apriva, Llc Method and system for securing data from a non-point of sale device over an external network
US20100115600A1 (en) * 2008-11-05 2010-05-06 Appsware Wireless, Llc Method and system for securing data from an external network to a point of sale device
US9215576B2 (en) 2008-12-26 2015-12-15 Nec Corporation Communication system, femto base station, call session control server, home subscriber server, communication method, and program
CN101730038A (zh) * 2009-04-29 2010-06-09 中兴通讯股份有限公司 紧急业务的实现方法及家用基站
CN101931954B (zh) * 2009-06-22 2013-02-27 南京中兴软件有限责任公司 一种基于业务区分改进无线局域网中实时业务QoS的方法
CN102118372B (zh) * 2009-12-31 2013-07-10 深圳市多尼卡电子技术有限公司 提供非实时互联网服务的系统和方法
US8955054B2 (en) * 2010-01-06 2015-02-10 Qualcomm Incorporated Method and apparatus for providing simultaneous support for multiple master keys at an access point in a wireless communication system
EP2373075A1 (de) 2010-03-30 2011-10-05 British Telecommunications public limited company System und Verfahren zur Überwachung des WLAN-Verkehrs
EP2405678A1 (de) 2010-03-30 2012-01-11 British Telecommunications public limited company System und Verfahren zur Roaming-WLAN-Authentifizierung
US9689988B1 (en) * 2010-06-03 2017-06-27 8X8, Inc. Systems, methods, devices and arrangements for emergency call services and emergency broadcasts
WO2012035203A1 (en) * 2010-09-16 2012-03-22 Nokia Corporation Dynamic account creation with secured hotspot network
CN102457907B (zh) * 2010-10-25 2015-07-29 上海贝尔股份有限公司 集中式无线局域网中识别客户端类型的方法和装置
US9763140B2 (en) * 2010-11-02 2017-09-12 Cisco Technology, Inc. Resource reservation on networks comprising wireless and wired segments
JP2012182743A (ja) * 2011-03-02 2012-09-20 Toshiba Tec Corp 電子機器、通信システムおよびプログラム
JP5655672B2 (ja) * 2011-03-31 2015-01-21 富士通株式会社 プログラム、情報通信機器および連携方法
US8869259B1 (en) * 2011-05-19 2014-10-21 Zscaler, Inc. Cloud based inspection of secure content avoiding man-in-the-middle attacks
KR101453521B1 (ko) 2011-05-20 2014-10-24 주식회사 케이티 무선 액세스 포인트 장치 및 비인가 무선 랜 노드 탐지 방법
WO2012161386A1 (ko) * 2011-05-20 2012-11-29 주식회사 케이티 무선 액세스 포인트 장치 및 비인가 무선 랜 노드 탐지 방법
US8769023B2 (en) * 2011-08-03 2014-07-01 Juniper Networks, Inc. Disaster response system
US8856290B2 (en) * 2011-10-24 2014-10-07 General Instrument Corporation Method and apparatus for exchanging configuration information in a wireless local area network
MY161907A (en) * 2011-12-23 2017-05-15 Telekom Malaysia Berhad System and method for providing multiple identifiers in a single access point
KR101918040B1 (ko) * 2012-02-20 2019-01-29 삼성전자주식회사 스크린 미러링 방법 및 그 장치
CN103379586B (zh) * 2012-04-24 2018-09-28 华为终端（东莞）有限公司 一种发现接入点的方法及站点、接入点
CN102821355A (zh) * 2012-05-15 2012-12-12 扬州易游物联网络科技有限公司 一种简便的利用无线局域网进行用户定位的方法
US10129751B2 (en) * 2012-05-25 2018-11-13 Comcast Cable Communications, Llc Wireless gateway supporting public and private networks
CN103517383B (zh) * 2012-06-18 2017-04-12 华为终端有限公司 移动终端接入家庭网络的方法和设备
JP5912913B2 (ja) * 2012-06-26 2016-04-27 アルパイン株式会社 車載機器
US9565622B2 (en) * 2012-07-05 2017-02-07 Qualcomm Incorporated Detecting services provided by a wireless node before device discovery and connection establishment
US10708121B2 (en) * 2012-11-05 2020-07-07 Comcast Cable Communications, Llc Intelligent network
WO2014091596A1 (ja) * 2012-12-13 2014-06-19 富士通株式会社 無線通信システム
US9051043B1 (en) 2012-12-28 2015-06-09 Google Inc. Providing emergency medical services using unmanned aerial vehicles
US8909391B1 (en) 2012-12-28 2014-12-09 Google Inc. Responsive navigation of an unmanned aerial vehicle to a remedial facility
US8930044B1 (en) 2012-12-28 2015-01-06 Google Inc. Multi-part navigation process by an unmanned aerial vehicle for navigating to a medical situatiion
US8983682B1 (en) 2012-12-28 2015-03-17 Google Inc. Unlocking mobile-device and/or unmanned aerial vehicle capability in an emergency situation
US8948935B1 (en) 2013-01-02 2015-02-03 Google Inc. Providing a medical support device via an unmanned aerial vehicle
GB2511313A (en) 2013-02-27 2014-09-03 Sony Corp A relay device, method and computer program
EP2824973A1 (de) * 2013-07-09 2015-01-14 Orange Netzwerkarchitektur zur Ermöglichung eines mobilen Endgeräts zum Roaming in ein drahtloses lokales Netzwerk
CN104427587A (zh) * 2013-08-23 2015-03-18 联想移动通信科技有限公司 一种无线局域网接入点的连接方法及移动设备
US9386148B2 (en) 2013-09-23 2016-07-05 Ooma, Inc. Identifying and filtering incoming telephone calls to enhance privacy
US9686819B2 (en) 2013-09-24 2017-06-20 Xiaomi Inc. Methods, devices and systems for router access control
CN103501482A (zh) * 2013-09-26 2014-01-08 小米科技有限责任公司 网络接入方法、装置及终端
DE102014202758A1 (de) * 2014-02-14 2015-08-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren, Vorrichtung und Drahtlosnetzwerkumgebung zum Austausch von Daten
JP6330445B2 (ja) * 2014-04-17 2018-05-30 株式会社バッファロー 通信システム
US10239638B1 (en) 2014-05-10 2019-03-26 Wing Aviation Llc Home station for unmanned aerial vehicle
US9633547B2 (en) 2014-05-20 2017-04-25 Ooma, Inc. Security monitoring and control
US10553098B2 (en) * 2014-05-20 2020-02-04 Ooma, Inc. Appliance device integration with alarm systems
US10769931B2 (en) 2014-05-20 2020-09-08 Ooma, Inc. Network jamming detection and remediation
US11330100B2 (en) 2014-07-09 2022-05-10 Ooma, Inc. Server based intelligent personal assistant services
CN109889473B (zh) * 2014-08-08 2021-11-19 创新先进技术有限公司 实现信息推送的方法及第三方客户端
JP5915712B2 (ja) * 2014-09-30 2016-05-11 富士通株式会社 制御プログラム、制御装置、および、制御方法
US12081453B2 (en) 2015-01-30 2024-09-03 Comcast Cable Communications, Llc Provisioning and managing resources
US9923814B2 (en) * 2015-02-17 2018-03-20 Huawei Technologies Co., Ltd. Media access control address resolution using internet protocol addresses
US20160295386A1 (en) * 2015-04-03 2016-10-06 Qualcomm Incorporated Techniques to support emergency services
US10911368B2 (en) 2015-05-08 2021-02-02 Ooma, Inc. Gateway address spoofing for alternate network utilization
US10771396B2 (en) 2015-05-08 2020-09-08 Ooma, Inc. Communications network failure detection and remediation
US10009286B2 (en) 2015-05-08 2018-06-26 Ooma, Inc. Communications hub
US11171875B2 (en) 2015-05-08 2021-11-09 Ooma, Inc. Systems and methods of communications network failure detection and remediation utilizing link probes
JP6627314B2 (ja) 2015-08-03 2020-01-08 株式会社リコー 通信システム、通信方法、通信装置およびプログラム
US10104665B2 (en) 2015-08-10 2018-10-16 Network Performance Research Group Llc Method and apparatus for providing dynamic frequency selection spectrum access in peer-to-peer wireless networks
US9439197B1 (en) 2015-08-10 2016-09-06 Planetary Network Technologies, Inc. Method and apparatus for directed adaptive control of dynamic channel selection in wireless networks
US9832791B2 (en) 2015-08-04 2017-11-28 Network Performance Research Group Llc Method and apparatus for use of simultaneous multiple channels in the dynamic frequency selection band in wireless networks
US9924518B2 (en) 2015-08-10 2018-03-20 Network Performance Research Group Llc Method and apparatus for dynamic channel selection device
US20170048728A1 (en) * 2015-08-10 2017-02-16 Network Performance Research Group Llc Method and apparatus for directed adaptive control of access point-to-client interaction in wireless networks
US9807625B2 (en) 2015-08-10 2017-10-31 Network Performance Research Group Llc Method and apparatus for using time shifted analysis based on gathering non-encrypted information from packets
CN105263099B (zh) * 2015-08-28 2018-10-12 小米科技有限责任公司 发送位置信息的方法和装置
FR3041842A1 (fr) * 2015-09-30 2017-03-31 Orange Systeme de restauration de services fournis par une passerelle residentielle
US9839038B2 (en) 2015-11-25 2017-12-05 Network Performance Research Group Llc System, method, and apparatus for setting a regulatory operating mode of a device
US10368247B2 (en) 2015-11-25 2019-07-30 Network Performance Research Group Llc Cloud DFS super master detector location systems and methods
US9930670B2 (en) 2015-11-25 2018-03-27 Network Performance Research Group Llc System, method, and apparatus for setting device geolocation via location proxies
US10716168B2 (en) * 2015-12-09 2020-07-14 Hewlett-Packard Development Company, L.P. Data transmissions without connections
WO2018017480A1 (en) 2016-07-20 2018-01-25 Level 3 Communications, Llc Dynamic service provisioning system and method
CN106130866A (zh) * 2016-08-01 2016-11-16 浪潮（苏州）金融技术服务有限公司 一种基于udp实现的局域网设备自主接入方法
US10604252B2 (en) 2016-11-22 2020-03-31 Wing Aviation Llc Landing and payload loading structures
US9867217B1 (en) * 2016-12-30 2018-01-09 T-Mobile Usa, Inc. Emergency call setup in wireless networks
EP3379790B1 (de) * 2017-03-22 2019-10-09 Deutsche Telekom AG Verfahren zur verbesserten handhabung eines paketvermittelten notrufs in einem telekommunikationsnetzwerk und/oder zur verbesserten handhabung von örtlichen notdienstinformationen durch ein benutzergerät, system, benutzergerät und programm
US10691142B2 (en) 2017-12-21 2020-06-23 Wing Aviation Llc Anticipatory dispatch of UAVs to pre-staging locations
HUE051099T2 (hu) * 2017-12-22 2021-03-01 Deutsche Telekom Ag Vészhelyzeti hálózati szelet és eljárás és hozzáférési hálózati entitás vészhelyzeti kommunikáció feldolgozására csomagkapcsolt kommunikációs hálózatban
CN109729151B (zh) * 2018-12-06 2022-05-03 浙江大学宁波理工学院 一种车载终端数据传输系统及方法
CN112040424B (zh) * 2019-06-04 2022-04-05 成都鼎桥通信技术有限公司 一种紧急抢占话权的方法和系统
CN111586145B (zh) * 2020-04-30 2023-06-30 深圳市元征科技股份有限公司 一种车辆诊断方法、系统及电子设备和存储介质
US11667402B2 (en) 2020-09-08 2023-06-06 Wing Aviation Llc Landing pad with charging and loading functionality for unmanned aerial vehicle
CN113747413B (zh) * 2021-11-04 2022-02-22 北京百瑞互联技术有限公司 多网络多模车载紧急呼叫方法、系统及介质
US12213046B2 (en) 2021-11-12 2025-01-28 Charter Communications Operating, Llc Method and system for supporting emergency voice services over wireless local area network (WLAN) using dynamic SSID deployment
US11582314B1 (en) * 2021-11-29 2023-02-14 Industrial Technology Research Institute Method for assisting unregistered user device to access private network service and communication system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6714536B1 (en) 1998-07-21 2004-03-30 Eric M. Dowling Method and apparatus for cosocket telephony
US6950628B1 (en) 2002-08-02 2005-09-27 Cisco Technology, Inc. Method for grouping 802.11 stations into authorized service sets to differentiate network access and services
US7835317B2 (en) 2002-10-08 2010-11-16 Nokia Corporation Network selection in a WLAN
US7369859B2 (en) 2003-10-17 2008-05-06 Kineto Wireless, Inc. Method and system for determining the location of an unlicensed mobile access subscriber
US7885644B2 (en) * 2002-10-18 2011-02-08 Kineto Wireless, Inc. Method and system of providing landline equivalent location information over an integrated communication system
BRPI0406649A (pt) * 2003-01-09 2005-12-06 Thomson Licensing Sa Método e aparelho para agrupar múltiplos pontos de acesso
US20040181692A1 (en) 2003-01-13 2004-09-16 Johanna Wild Method and apparatus for providing network service information to a mobile station by a wireless local area network
US7177399B2 (en) 2004-02-27 2007-02-13 Nortel Network Limited Determining the geographical location from which an emergency call originates in a packet-based communications network
KR100842548B1 (ko) * 2004-03-05 2008-07-01 삼성전자주식회사 긴급 호출 시스템 및 그 제어 방법
US8145182B2 (en) * 2004-05-07 2012-03-27 Interdigital Technology Corporation Supporting emergency calls on a wireless local area network
US20060068799A1 (en) 2004-09-27 2006-03-30 T-Mobile, Usa, Inc. Open-host wireless access system
JP2006101421A (ja) * 2004-09-30 2006-04-13 Toshiba Corp 映像信号処理回路
US7433673B1 (en) * 2004-12-17 2008-10-07 Sprint Spectrum L.P. Method and system for providing location information for a wireless local area network (WLAN)
US7496182B2 (en) * 2005-04-15 2009-02-24 Verizon Business Global Llc Handling emergency service calls originating from internet telephony
US20060274729A1 (en) * 2005-06-03 2006-12-07 Michael Self Apparatus and method for connecting a voice over IP telephone subscriber to the 911 emergency network

Also Published As

Publication number Publication date
US7877785B2 (en) 2011-01-25
EP1850532A1 (de) 2007-10-31
PL1850532T3 (pl) 2012-10-31
WO2007124987A1 (en) 2007-11-08
US20080016556A1 (en) 2008-01-17
ES2381392T3 (es) 2012-05-25
JP4913209B2 (ja) 2012-04-11
JP2009535948A (ja) 2009-10-01
EP1850532B1 (de) 2012-03-28
KR20090008302A (ko) 2009-01-21
KR101226042B1 (ko) 2013-01-24
CN101064655A (zh) 2007-10-31
CN101064655B (zh) 2013-04-24

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