WO2002041587A2 - Method and system for enabling centralized control of wireless local area networks - Google Patents
Method and system for enabling centralized control of wireless local area networks Download PDFInfo
- Publication number
- WO2002041587A2 WO2002041587A2 PCT/US2001/051306 US0151306W WO0241587A2 WO 2002041587 A2 WO2002041587 A2 WO 2002041587A2 US 0151306 W US0151306 W US 0151306W WO 0241587 A2 WO0241587 A2 WO 0241587A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- access point
- mobile device
- initial
- target
- piconet
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000012546 transfer Methods 0.000 claims abstract description 55
- 238000004891 communication Methods 0.000 claims abstract description 51
- 238000004590 computer program Methods 0.000 claims description 14
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- 238000005538 encapsulation Methods 0.000 claims description 10
- 230000001052 transient effect Effects 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 44
- 238000013459 approach Methods 0.000 description 19
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Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/169—Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
- H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless
-
- 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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
Definitions
- the roaming server 22 determines that a mobile device 26 should change its LAN connection point from access point 24-1 to access point 24-2 based on a triggering or initiating event.
- a triggering or initiating event can be the moving of the mobile device 26 (e.g., when the user moves the mobile device 26 from one location to another), or receiving a request from a mobile device 26 or access point 24 to move the mobile device 26.
- Fig. 2 is a block diagram illustrating the components within the roaming server 22. These components include a digital processor 40, a device database 42, and a communications interface 44.
- the digital processor 40 hosts and executes a gateway application 46 in the working memory of the roaming server 22.
- the gateway application 46 serves to provide for the management of the connections of the roaming server 22 to other devices, such as access points 24 and mobile devices 26 (typically through connections through access points 24).
- the gateway application 46 may instruct an access point 24-1 to perform a transfer of wireless connections 30-1 so that the mobile device 26 can establish a new connection 30-2 with a different access point 24-2.
- the gateway application 46 is implemented partially or totally in hardware, such as in an ASIC (application-specific integrated circuit).
- the roaming server 22 instructs the target or secondary access point 24-5 to listen for a packet from the mobile device 26-2 even if the packet is addressed to another access point (e.g., 24-4) having a different MAC address , so that packets could be returned from either access point (e.g., 24-4 or 24-5).
- another access point e.g., 24-4 having a different MAC address
- each access point 24 is aware of all the packets that arrive on a radio channel (e.g., assuming the channel can be accessed by both access points 24-4 and 24- 5).
- the present invention provides that the look-up table be expanded to include a new category called "watch out".
- the watch out category includes device addresses 52 (MAC addresses) and spoofing channels that the access point 24 should look out for.
- MAC addresses device addresses 52
- RSSI receiver signal strength
- the server wireless protocol stack 74 (for a roaming server 22 or master access point 24) includes the TCP/IP (Transmission Control Protocol/Internet Protocol) layer 84, the PPP (point to point) layer 86, the RFCOMM (serial cable emulation protocol) layer 88, the L2CAP (logical link controller adaptation protocol) layer 90, the HCI transport layer 92-1, and the UDP/TP (User Datagram Protocol/Internet Protocol) transport layer 94-1.
- the access point wireless protocol stack 76 includes the HCI transport layer 92-2, the UDP/IP fransport layer 94-2, the link manager layer 100 (e.g., Bluetooth link manager), the link controller layer 102 (e.g., Bluetooth link controller), and the radio layer 104.
- Fig. 9 illustrates the HCI UDP packet format for an encapsulated packet 64 that includes a host controller interface command 72 (e.g., HCI command) based on a network based packet protocol (e.g., UDP).
- a host controller interface command 72 e.g., HCI command
- UDP network based packet protocol
- the encapsulated host controller command 72 is part of the payload 122 when UDP packets are used for the HCI transport layer.
- the version field 112 is a 1-byte value that identifies the version of the packet format used. For the first version of the HCI UDP protocol, the value 0x01 is used.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01987586A EP1330894A2 (en) | 2000-10-23 | 2001-10-22 | Method and system for enabling centralized control of wireless local area networks |
JP2002543871A JP2004514383A (en) | 2000-10-23 | 2001-10-22 | Method and system for enabling central control of a wireless local area network |
CA002426482A CA2426482A1 (en) | 2000-10-23 | 2001-10-22 | Method and system for enabling centralized control of wireless local area networks |
AU2002239788A AU2002239788A1 (en) | 2000-10-23 | 2001-10-22 | Method and system for enabling centralized control of wireless local area networks |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24197500P | 2000-10-23 | 2000-10-23 | |
US60/241,975 | 2000-10-23 | ||
US09/911,092 US7260638B2 (en) | 2000-07-24 | 2001-07-23 | Method and system for enabling seamless roaming in a wireless network |
US09/911,092 | 2001-07-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002041587A2 true WO2002041587A2 (en) | 2002-05-23 |
WO2002041587A3 WO2002041587A3 (en) | 2003-02-27 |
Family
ID=26934736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/051306 WO2002041587A2 (en) | 2000-10-23 | 2001-10-22 | Method and system for enabling centralized control of wireless local area networks |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1330894A2 (en) |
JP (1) | JP2004514383A (en) |
AU (1) | AU2002239788A1 (en) |
CA (1) | CA2426482A1 (en) |
WO (1) | WO2002041587A2 (en) |
Cited By (38)
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GB2389005A (en) * | 2002-05-23 | 2003-11-26 | Inc Motorola | Enabling cooperation between network kinds such as cellular and wlan |
WO2003105499A1 (en) | 2002-06-05 | 2003-12-18 | Airflow Networks | Virtual switch |
WO2004004227A1 (en) | 2002-06-26 | 2004-01-08 | Nokia Corporation | Load balancing in wireless communication network |
EP1411670A1 (en) * | 2002-10-17 | 2004-04-21 | Alcatel | A hybrid UMTS/WLAN telecommunications system |
EP1448000A1 (en) | 2003-02-05 | 2004-08-18 | TeliaSonera Finland Oyj | Method and system for authenticating a subscriber |
WO2005027554A1 (en) * | 2003-09-03 | 2005-03-24 | Zte Corporation | The method for the mobile terminal hand-off between the cdma system and the wlan |
WO2005060166A1 (en) * | 2003-12-19 | 2005-06-30 | International Business Machines Corporation | Autonomic client reassociation in a wireless local area network |
EP1601221A1 (en) * | 2004-05-29 | 2005-11-30 | Samsung Electronics Co., Ltd. | Seamless handoff method in wireless local area network |
SG119202A1 (en) * | 2002-11-27 | 2006-02-28 | Microsoft Corp | Native wi-fi architecture for 802.11 networks |
US7016325B2 (en) | 2001-01-18 | 2006-03-21 | Strix Systems, Inc. | Link context mobility method and system for providing such mobility, such as a system employing short range frequency hopping spread spectrum wireless protocols |
GB2424347A (en) * | 2005-03-07 | 2006-09-20 | Samsung Electronics Co Ltd | Providing call service in a wireless local area network (WLAN). |
JP2006521763A (en) * | 2003-03-27 | 2006-09-21 | トムソン ライセンシング | Secure roaming between wireless access points |
EP1705835A1 (en) * | 2005-03-22 | 2006-09-27 | Gemtek Systems, Inc. | Methods and systems for fast handover in 802.11 wireless networks |
US7126937B2 (en) | 2000-12-26 | 2006-10-24 | Bluesocket, Inc. | Methods and systems for clock synchronization across wireless networks |
WO2006127156A1 (en) * | 2005-05-20 | 2006-11-30 | Symbol Technologies, Inc. | Method and system for a roam-less mobile unit |
US7151757B2 (en) | 2001-05-02 | 2006-12-19 | Strix Systems, Inc. | Wireless base station to base station synchronization in a communication system, such as a system employing a short-range frequency hopping or time division duplex scheme |
US7187925B2 (en) | 2003-02-28 | 2007-03-06 | Microsoft Corporation | Access point to access point range extension |
US7194010B2 (en) | 2001-05-02 | 2007-03-20 | Strix Systems, Inc. | Wireless base station to base station synchronization in a communication system, such as a system employing a short range frequency hopping or time division duplex scheme |
US7251489B2 (en) | 2001-05-02 | 2007-07-31 | Strix Systems, Inc. | Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme |
JP2007524271A (en) * | 2003-06-27 | 2007-08-23 | オラクル・インターナショナル・コーポレイション | Roaming across different access mechanisms and network technologies |
CN100362822C (en) * | 2003-01-23 | 2008-01-16 | 三星电子株式会社 | Switching method in radio local network, insertion point and mobile station for executing switching method |
FR2905551A1 (en) * | 2006-09-06 | 2008-03-07 | Alcatel Sa | METHOD FOR MANAGING CONNECTIONS BETWEEN A WIRELESS TERMINAL AND ACCESS INTERFACES |
WO2008081137A2 (en) * | 2006-12-22 | 2008-07-10 | France Telecom | Communication switching method, access point, network controller and associated computer programs |
CN100428713C (en) * | 2003-12-23 | 2008-10-22 | 联想(新加坡)私人有限公司 | Smart access point |
WO2008157117A1 (en) | 2007-06-20 | 2008-12-24 | Microsoft Corporation | Managing dense wireless access point infrastructures in wireless local area networks |
GB2456030A (en) * | 2007-12-27 | 2009-07-01 | Lenovo | Use of spoofing to improve hand-off of bluetooth pairings |
US7665130B2 (en) | 2004-03-10 | 2010-02-16 | Eric White | System and method for double-capture/double-redirect to a different location |
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US8245284B2 (en) | 2006-10-05 | 2012-08-14 | Microsoft Corporation | Extensible network discovery |
CN101317387B (en) * | 2005-11-28 | 2013-01-09 | 佳能株式会社 | Communication apparatus, control method for communication apparatus, and communication system |
US8381273B2 (en) | 2003-08-20 | 2013-02-19 | Rpx Corporation | System and method for providing a secure connection between networked computers |
US8397282B2 (en) | 2004-03-10 | 2013-03-12 | Rpx Corporation | Dynamically adaptive network firewalls and method, system and computer program product implementing same |
WO2013070277A1 (en) * | 2011-11-09 | 2013-05-16 | Cisco Technology. Inc. | Pairing a bluetooth device to a virtual desktop in a hosted desktop environment |
US8484695B2 (en) | 2002-10-10 | 2013-07-09 | Rpx Corporation | System and method for providing access control |
US8543693B2 (en) | 2004-03-10 | 2013-09-24 | Rpx Corporation | System and method for detection of aberrant network behavior by clients of a network access gateway |
US8543710B2 (en) | 2004-03-10 | 2013-09-24 | Rpx Corporation | Method and system for controlling network access |
CN104159252A (en) * | 2014-08-25 | 2014-11-19 | 醴陵恒茂电子科技有限公司 | Centralized network management device for wireless access point and management method thereof |
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DE102004052331A1 (en) * | 2004-10-27 | 2006-05-04 | Nec Europe Ltd. | Method for controlling communication with mobile stations in a network |
JP2006222549A (en) * | 2005-02-08 | 2006-08-24 | Nec Corp | Wireless lan system and roaming method in same |
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US7016325B2 (en) | 2001-01-18 | 2006-03-21 | Strix Systems, Inc. | Link context mobility method and system for providing such mobility, such as a system employing short range frequency hopping spread spectrum wireless protocols |
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US7251489B2 (en) | 2001-05-02 | 2007-07-31 | Strix Systems, Inc. | Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme |
US7194010B2 (en) | 2001-05-02 | 2007-03-20 | Strix Systems, Inc. | Wireless base station to base station synchronization in a communication system, such as a system employing a short range frequency hopping or time division duplex scheme |
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GB2389005B (en) * | 2002-05-23 | 2005-09-07 | Inc Motorola | Communications methods and apparatus for use therein |
GB2389005A (en) * | 2002-05-23 | 2003-11-26 | Inc Motorola | Enabling cooperation between network kinds such as cellular and wlan |
US8355358B2 (en) | 2002-06-05 | 2013-01-15 | Broadcom Corporation | Distributed MAC architecture for wireless repeater |
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US7509129B2 (en) | 2002-06-26 | 2009-03-24 | Nokia Corporation | Load balancing in wireless communication network |
WO2004004227A1 (en) | 2002-06-26 | 2004-01-08 | Nokia Corporation | Load balancing in wireless communication network |
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US8484695B2 (en) | 2002-10-10 | 2013-07-09 | Rpx Corporation | System and method for providing access control |
US7630347B2 (en) | 2002-10-17 | 2009-12-08 | Alcatel | Hybrid UMTS/WLAN telecommunication system |
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US8327135B2 (en) | 2002-11-27 | 2012-12-04 | Microsoft Corporation | Native WI-FI architecture for 802.11 networks |
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US8077682B2 (en) | 2003-03-27 | 2011-12-13 | Thomson Licensing | Secure roaming between wireless access points |
JP2006521763A (en) * | 2003-03-27 | 2006-09-21 | トムソン ライセンシング | Secure roaming between wireless access points |
JP2007524271A (en) * | 2003-06-27 | 2007-08-23 | オラクル・インターナショナル・コーポレイション | Roaming across different access mechanisms and network technologies |
US8381273B2 (en) | 2003-08-20 | 2013-02-19 | Rpx Corporation | System and method for providing a secure connection between networked computers |
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WO2002041587A3 (en) | 2003-02-27 |
AU2002239788A1 (en) | 2002-05-27 |
EP1330894A2 (en) | 2003-07-30 |
JP2004514383A (en) | 2004-05-13 |
CA2426482A1 (en) | 2002-05-23 |
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