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WO2006052214A1 - Station wlan et procede de fonctionnement de la station en mode infrastructure et en mode independant (ad hoc) simultanement - Google Patents

Station wlan et procede de fonctionnement de la station en mode infrastructure et en mode independant (ad hoc) simultanement Download PDF

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Publication number
WO2006052214A1
WO2006052214A1 PCT/SE2005/001720 SE2005001720W WO2006052214A1 WO 2006052214 A1 WO2006052214 A1 WO 2006052214A1 SE 2005001720 W SE2005001720 W SE 2005001720W WO 2006052214 A1 WO2006052214 A1 WO 2006052214A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
mode
wlan
wlan terminal
mixed mode
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE2005/001720
Other languages
English (en)
Inventor
Örjan FRITZ
Per Konradsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanoradio AB
Original Assignee
Nanoradio AB
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
Priority claimed from SE0402805A external-priority patent/SE0402805D0/sv
Application filed by Nanoradio AB filed Critical Nanoradio AB
Priority to JP2007541144A priority Critical patent/JP2008520162A/ja
Priority to EP05803619A priority patent/EP1810453A4/fr
Publication of WO2006052214A1 publication Critical patent/WO2006052214A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to Wireless Local Area Network, WLAN.
  • connection between the terminal and the peripheral are such that an Independent relation is most effective and practical.
  • a connection between two WLAN stations via an Access Point means that every packet needs to be transmitted over the air interface twice (from terminal 1 to AP and then from AP to terminal 2), while in Independent mode, each packet is transmitted DIRECTLY from station 1 to station 2. This means ineffective utilization of available bandwidth. If the connection between the terminal and the peripheral device where to done via the Access Point, the connection procedure would be quite complicated. Something like the following would be necessary (assuming the terminal is already associated with the Access Point):
  • the terminal leaves the Infrastructure association with the AP.
  • the terminal establishes an Independent association with the peripheral device.
  • the terminal asks the peripheral device to leave the Independent association and instead associate with the Infrastructure network.
  • the peripheral device leaves the Independent network and associates with the Infrastructure network.
  • the terminal leaves the Independent network and re-establishes the association with the Infrastructure network.
  • the terminal and the peripheral device are ready to communicate via the Access Point.
  • the object of this invention is to overcome said drawbacks and problems, and which provides an alternative solution of the suggested communication standard.
  • the invented WLAN terminal comprises one state- machine intended for controlling the WLAN terminal in the Infrastructure mode, a second state-machine for controlling the WLAN terminal in the Independent mode, and mixed mode means for running the first and second state-machines in a mixed mode, wherein the WLAN terminal is capable of transferring data information in the infrastructure and independent modes simultaneously.
  • the invention also relates to a method for operating a WLAN (Wireless Local Area Network) terminal in different modes, said WLAN terminal is capable of operating in one infrastructure mode or in a second independent mode, mutually exclusive, characterized by the step of setting the WLAN terminal in a mixed mode by means of a mixed mode means for running the WLAN terminal in the infrastructure and independent modes simultaneously.
  • WLAN Wireless Local Area Network
  • the present invention also relates to a computer program and a computer program product.
  • the terminal establishes an Independent relation with the peripheral device.
  • the terminal and the peripheral device will have the possibility to communicate directly without the intermediate Access Point.
  • the peripheral device need only support Independent operation mode, and thus the implementation may be more compact with smaller memory footprint.
  • the crypto key management is simplified as the peripheral device otherwise would need to be provided with keys for the Infrastructure connection (possibly different keys for each different Access Point).
  • the proposed invention is compliant with the 802.11 standard. There is a proposed amendment by the IEEE organization (802.1 Ie) that addresses the same problem with a different solution (Direct Links) . The strength of the proposed invention is still that the connection between the terminal and the peripheral device does not require the presence of an Access Point that comply with the 802. l ie amendment of Direct Links.
  • FIG. 1a and Ib are schematic block diagrams illustrating a communication network, a peripheral device and a prior art WLAN terminal operating according to the IEEE standard 802.11.
  • Figure 2 is a schematic block diagram illustrating a communication network, a peripheral device and a WLAN terminal operating according to the invention.
  • Figure Ia and Ib are schematic block diagrams illustrating a prior art WLAN terminal operating according to the IEEE standard 802.11, which hereby is incorporated by reference.
  • the WLAN terminal even generally denoted as a WLAN station, is operating in the infrastructure mode connected to an Access Point (AP) of a communication network.
  • AP Access Point
  • peripheral devices e.g. headset for mobile terminals , PAN, Personal Computers etc
  • AP Access Point
  • the WLAN terminal and the peripheral device each one comprises a WLAN communication unit for transmitting and receiving data packages over an air interface. If the WLAN terminal is a mobile radio telecommunication terminal running a voice-over-IP call, this has to be done in the infrastructure mode and a wireless headset has also to be connected to the terminal via the Access Point AP.
  • the WLAN terminal is not capable of running a direct link or connection over the air interface in this mode.
  • the terminal is also provided with at least one computer or digital processing unit, such as a central processing unit (CPU), connected to In/ Out-units and program software and data storage means (not shown) for controlling the functions, different equipment units and other applications of the terminal.
  • CPU central processing unit
  • program software and data storage means not shown
  • the WLAN terminal is connected directly over a wireless link or wireless connection to the peripheral device, and the WLAN terminal is operating in the independent mode. It will not be possible to connect the WLAN terminal to an Access point without terminating the direct air interface link to the peripheral WLAN device.
  • the terminal and the peripheral device is forced to operate in the same mode, or state.
  • the WLAN communication unit comprises two state-machines, one state-machine operating exclusively in the infrastructure mode, and a second state-machine operating exclusively in the independent mode.
  • the two state-machines operates mutually exclusive.
  • a state- machine is typically a computer program software in combination with a digital processing unit/ device (processor). Different state- machines can be implemented as different software on the same processor.
  • a WLAN terminal according to the invention is illustrated, which is capable of operating in a third, mixed mode, combining infrastructure mode and independent mode.
  • a WLAN terminal according the invention will also comprise a two state machine capable of operating mutually exclusive.
  • a WLAN terminal according to the invention will comprise a mixed mode means for running the first and second state-machines at the same time, thus making it possible to operate the WLAN terminal in a mixed mode combining the infrastructure mode and the independent mode.
  • This third mode is comparable in many features to the scatter mode known from the Bluetooth standard, which hereby is incorporated by reference, but with the difference that the hard ware and soft ware is adapted to WLAN technology and structure.
  • the WLAN terminal is connected directly over a wireless link or wireless connection to the peripheral device operating in the independent mode, and at the same time, simultaneously, connected to an AP of a communication network.
  • This mode is selectable by a user of the terminal if the user wants to use a peripheral device, such as a head set, in combination with the terminal, such as a mobile radio telecommunication terminal.
  • the mixed mode means which comprises following means:
  • TSF means
  • TSF Time Synchronization Function
  • the station needs to simultaneously be able to handle two different network segments, each with its own cell attribute list. This is done by keeping multiple (2) instances of network attribute lists.
  • the network attribute list contain information such as allowed transmission rates, security policy, quality of service policy, beacon transmission timing, network id, etc.
  • the station needs to simultaneously be able to comply to two different sets of media access timing rules. This is done by hardware support in terms of multiple hardware transmit timing accelerator means, each with its own set of controlling parameters;
  • the station need to be able to, over one single physical interface, present two different network interfaces to the to the host environment in which it operates. This is done by simultaneously maintaining two different mac addresses and, in the host driver part, announce two different and simultaneous network connections; 5.
  • Different power management state machines
  • the station need to inform network peer units of the stations momentarily availability to communication. This is done by keeping and coordinating different power management state machines, one for each network instance.
  • connection When setting up a wireless communication link or connection, there is some properties of the connection to the AP, that has capabilities, which is announced via the data information signalling of the connection establishment. Said property information will be stored in data storing means within the terminal. As protocol is used for the data information transmission, capability information will be used in the lowest protocol level, controlling the timing of the protocols. This timing derived from the infrastructure mode connection, which also sometimes is denoted infrastructure network, is also used for controlling the establishment of the timing in independent mode connection, which also is denoted independent network. In this way, one connection or network is characterized as superior, and the other connection or network is subordinate. Hence, the infrastructure network is superior to the independent ditto. The hard ware in the terminal has to support both connections/networks.
  • the capability properties are therefore filtered out from the superior network to be used in the subordinate network for achieving that the two networks will be as compatible as possible.
  • a routing means is therefore provided within the terminal according to the invention for accomplishing correct distribution of the data frames /packages to the networks respectively.
  • the peripheral device need only support Independent operation mode, and the implementation may be more compact with smaller memory footprint.
  • the WLAN terminal will correspond to a client party and the AP the server party.
  • the peripheral device will be passive waiting for the establishment of a connection.
  • a terminal or a peripheral device In the independent mode, if a terminal or a peripheral device doesn't discover any synchronizer, it will immediately take the synchronizer function by starting beacon signalling. Due to the timer change and/ or disturbance, synchronizer function is able to jump, be transferred, from one terminal/ device to another device /terminal.
  • One benefit with the present invention is that it possible to connect a number of headsets to the same WLAN terminal and thereby establishing conference calls with a number of participants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)
  • Telephonic Communication Services (AREA)

Abstract

La présente invention concerne une station ou un terminal WLAN et un procédé de fonctionnement d'une station/terminal WLAN (réseau local sans fil) dans différents modes, ledit terminal WLAN est capable de fonctionner dans un mode infrastructure ou dans un second mode indépendant s'excluant mutuellement. Le terminal WLAN de l'invention a la possibilité de se placer en mode mixte à l'aide d'un moyen de mode mixte destiné à faire fonctionner le terminal WLAN dans les modes infrastructure et indépendant simultanément.
PCT/SE2005/001720 2004-11-12 2005-11-14 Station wlan et procede de fonctionnement de la station en mode infrastructure et en mode independant (ad hoc) simultanement Ceased WO2006052214A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007541144A JP2008520162A (ja) 2004-11-12 2005-11-14 無線ｌａｎステーション、及び、無線ｌａｎステーションをインフラストラクチャ・モードと独立（アドホック）モードで同時に動作させる方法
EP05803619A EP1810453A4 (fr) 2004-11-12 2005-11-14 Station wlan et procede de fonctionnement de la station en mode infrastructure et en mode independant (ad hoc) simultanement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US62757104P 2004-11-12 2004-11-12
US60/627,571 2004-11-12
SE0402805A SE0402805D0 (sv) 2004-11-12 2004-11-12 Wlan station
SE0402805-6 2004-11-12

Publications (1)

Publication Number Publication Date
WO2006052214A1 true WO2006052214A1 (fr) 2006-05-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2005/001720 Ceased WO2006052214A1 (fr) 2004-11-12 2005-11-14 Station wlan et procede de fonctionnement de la station en mode infrastructure et en mode independant (ad hoc) simultanement

Country Status (4)

Country Link
EP (1) EP1810453A4 (fr)
JP (1) JP2008520162A (fr)
KR (1) KR20070098802A (fr)
WO (1) WO2006052214A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104754769A (zh) * 2013-12-26 2015-07-01 阿尔派株式会社 电子装置以及无线设备确认方法
WO2017034681A1 (fr) * 2015-08-25 2017-03-02 Laird Technologies, Inc. Commutation automatique de mode sans fil
US12402071B2 (en) 2018-06-29 2025-08-26 Apple Inc. Apparatus, method, and medium for mobile access point station

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KR101365589B1 (ko) * 2012-07-05 2014-02-21 에스케이텔레콤 주식회사 다중 네트워크 기반 데이터 송수신 방법 및 이에 적용되는 장치
JP6381207B2 (ja) * 2013-12-25 2018-08-29 キヤノン株式会社 通信装置、通信方法及びプログラム

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WO2003069855A1 (fr) * 2002-02-16 2003-08-21 Qosine Ltd. Procedes et dispositif d'ensembles de connexion de dispositifs
US20030216154A1 (en) * 2002-05-17 2003-11-20 Menno Mennenga Shared circuitry for WLAN reciever functional units
WO2004061700A1 (fr) * 2002-12-27 2004-07-22 Atheros Communications, Inc. Systeme et procede destines a rendre des dispositifs sans fil conformes a des reglementations mondiales
US20040230370A1 (en) * 2003-05-12 2004-11-18 Assimakis Tzamaloukas Enhanced mobile communication device with extended radio, and applications
US20050100029A1 (en) * 2003-11-12 2005-05-12 Research Foundation Of The State University Of New York Ad hoc network routing for hotspot mitigation and load balancing in wireless LANs
US20050122940A1 (en) * 2003-12-05 2005-06-09 Zhi-Heng Nian Method for wireless network communication in dual mode

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US7522551B2 (en) * 2001-09-17 2009-04-21 Microsoft Corporation Method and apparatus for wireless routing on a plurality of different wireless channels
US7720045B2 (en) * 2003-05-02 2010-05-18 Microsoft Corporation Method to enable simultaneous connections to multiple wireless networks using a single radio
JP3792632B2 (ja) * 2002-10-01 2006-07-05 Ｎｅｃインフロンティア株式会社 無線ｌａｎ通信方式
JP2004229237A (ja) * 2003-01-27 2004-08-12 Ricoh Co Ltd 無線通信システム

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WO2003069855A1 (fr) * 2002-02-16 2003-08-21 Qosine Ltd. Procedes et dispositif d'ensembles de connexion de dispositifs
US20030216154A1 (en) * 2002-05-17 2003-11-20 Menno Mennenga Shared circuitry for WLAN reciever functional units
WO2004061700A1 (fr) * 2002-12-27 2004-07-22 Atheros Communications, Inc. Systeme et procede destines a rendre des dispositifs sans fil conformes a des reglementations mondiales
US20040230370A1 (en) * 2003-05-12 2004-11-18 Assimakis Tzamaloukas Enhanced mobile communication device with extended radio, and applications
US20050100029A1 (en) * 2003-11-12 2005-05-12 Research Foundation Of The State University Of New York Ad hoc network routing for hotspot mitigation and load balancing in wireless LANs
US20050122940A1 (en) * 2003-12-05 2005-06-09 Zhi-Heng Nian Method for wireless network communication in dual mode

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104754769A (zh) * 2013-12-26 2015-07-01 阿尔派株式会社 电子装置以及无线设备确认方法
EP2890212A1 (fr) * 2013-12-26 2015-07-01 Alpine Electronics, Inc. Appareil électronique dans un véhicule et procédé de vérification de dispositif sans fil
US9693215B2 (en) 2013-12-26 2017-06-27 Alpine Electronics, Inc. Electronic apparatus and wireless device checking method
CN104754769B (zh) * 2013-12-26 2019-10-01 阿尔派株式会社 电子装置以及无线设备确认方法
WO2017034681A1 (fr) * 2015-08-25 2017-03-02 Laird Technologies, Inc. Commutation automatique de mode sans fil
US9781750B2 (en) 2015-08-25 2017-10-03 Laird Technologies, Inc. Automatic wireless mode switching
US12402071B2 (en) 2018-06-29 2025-08-26 Apple Inc. Apparatus, method, and medium for mobile access point station

Also Published As

Publication number Publication date
JP2008520162A (ja) 2008-06-12
EP1810453A4 (fr) 2011-08-24
KR20070098802A (ko) 2007-10-05
EP1810453A1 (fr) 2007-07-25

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