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WO2003015315A1 - Systeme support d'un mecanisme de transfert/itinerance dans un reseau sans fil a courte distance utilisant bluetooth - Google Patents

Systeme support d'un mecanisme de transfert/itinerance dans un reseau sans fil a courte distance utilisant bluetooth Download PDF

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Publication number
WO2003015315A1
WO2003015315A1 PCT/KR2002/001533 KR0201533W WO03015315A1 WO 2003015315 A1 WO2003015315 A1 WO 2003015315A1 KR 0201533 W KR0201533 W KR 0201533W WO 03015315 A1 WO03015315 A1 WO 03015315A1
Authority
WO
WIPO (PCT)
Prior art keywords
promineo
handover
bluetooth
roaming
ppp
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/KR2002/001533
Other languages
English (en)
Inventor
Hyun-Sang Jang
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.)
INITIUM CO Ltd
Original Assignee
INITIUM CO Ltd
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 INITIUM CO Ltd filed Critical INITIUM CO Ltd
Publication of WO2003015315A1 publication Critical patent/WO2003015315A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/22—Manipulation of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H04W36/035—Reselecting a link using a direct mode connection in self-organising 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
    • H04W88/18—Service support devices; Network management devices
    • H04W88/182—Network node acting on behalf of an other network entity, e.g. proxy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • 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
    • H04W88/08—Access point devices
    • 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
    • H04W88/14—Backbone network devices

Definitions

  • the present invention relates to a short-range wireless
  • the Bluetooth which is one of the short-range wireless data
  • Bluetooth SIG Specific Interest Group
  • the Bluetooth Spec. 1.0 prescribes a data rate of 1Mbps and a
  • wireless communication network in order to guarantee user mobility.
  • Bluetooth standardized by the Bluetooth SIG and IEEE 802.15, solve problems due to frequent inquiries/connections during the movement of a
  • Proteino-AP which is a network access point (NAP) for connecting
  • the Promineo-AP connects the Promineo-DT through the
  • Promineo-RA serves as a PPP server for processing PPP
  • connection to the DT in a sub-network including the NAPs recovers the
  • Fig. 1 is a basic structure view illustrating a handover/roaming
  • Fig. 2 shows PPP termination in the RA
  • Fig. 3 shows an initial connection setup in accordance with the
  • Fig. 4 shows measurement of a clock offset in accordance with the
  • Fig. 5 shows link loss detection and handover mechanism based on a
  • radio signal strength indicator (RSSI);
  • Fig. 6 shows link loss detection and handover mechanism based on a
  • Fig. 7 shows one example of network constitution.
  • Fig. 1 is a basic structure view illustrating a handover/roaming
  • system includes a Promineo-AP which is a NAP for connecting a Bluetooth
  • a Promineo-DT which is a data terminal
  • the Promineo-AP can include up to four Bluetooth modules.
  • each Bluetooth module can be used to connect the DTs through the LAN or
  • the Promineo-AP is positioned between the DT and the RA
  • a PPP server exists in the RA, not the AP, when the RA is used for handover/roaming support. In this case, the AP merely
  • the Promineo-RA serves as a PPP server for processing PPP
  • connection to the DT in a sub-network including the NAPs is not limited.
  • Promineo-RA performs a tunneling operation with the NAPs for receiving
  • the Promineo-RA stores and manages
  • the Promineo-RA transmits a
  • pre-paging command to the adjacent NAPs to detect the position of the DT.
  • the Promineo-RA determines an NAP most
  • the deployed NAPs commands the NAP to connect the DT.
  • the Promineo-DT uses a PPP associated RFCOMM (serial cable
  • the DT has a function of entering into a continuous page scan
  • the DT satisfying the aforementioned conditions can be the
  • the LAP which is a network connection standard of the Bluetooth
  • Spec. 1.1 executes network connection through the PPP on the RFCOMM
  • the Promineo-AP of the invention is designed to be operated in a dual mode, for individually supporting the generalized
  • the Promineo-AP is operated as the generalized NAP including a PPP
  • NAT network address translation
  • the PPP server is positioned
  • NAP handover mechanism of the user apparatus When the handover
  • the RA performs packet buffering in consideration of the time
  • Fig. 3 shows an initial connection setup in accordance with the
  • the DT is initially connected to the network according to the LAP.
  • the DT performs inquiries and paging to the network, and enters
  • the Piconet called as the Bluetooth network composed of a master and
  • the AP is the
  • the AP confirms whether the DT is the
  • Promineo-DT or general DT by using a name request or SDP.
  • Fig. 4 shows measurement of the clock offset in accordance with the
  • the AP 2 needs clock_offset
  • the Bluetooth modules of the APs can calculate a relative
  • the clock offset is calculated between the two Bluetooth modules
  • Fig. 5 shows link loss detection and handover mechanism based on a
  • radio signal strength indicator (RSSI).
  • the disconnected DT enters into the R0 page scan mode and
  • the RA performs continuous page scan.
  • the RA transmits handover initiation
  • the APi cannot communicate with the
  • Fig. 6 shows link loss detection and handover mechanism based on a link supervision timer.
  • the RA R0 page scan mode
  • the Promineo-DT performs the
  • the RA has packet buffers in each session, stores packets
  • the Promineo-DT is disconnected from the Promineo-APo, it needs to be
  • the APs adjacent to the APo form a candidate
  • the candidate APs are indicated by APi, AP2,'", AP n .
  • the APo initiates the handover
  • the APo informs the Promineo-RA of initiation of the handover
  • the Promineo-RA stores packets toward the Promineo-DT.
  • the APo ends connection to the Promineo-DT.
  • the reason parameter is
  • OxFF OxFF
  • the DT enters into the continuous page scan mode for
  • T h andover_timeout seconds T ha ndover_timeout seconds should be long enough to
  • the APo selects the APs from the candidate group so that the
  • the APo transmits handover command
  • the selected APs intend to page the Promineo-DT by using
  • the selected APs transmit paging
  • the APo selects another APs from the candidate group and
  • the AP transmits a handover success message to the APo.
  • the master/slave switching does not occur during the handover
  • the APo When receiving the message, the APo directly informs the Promineo-RA of
  • the APo intends to finally page the Promineo-DT.
  • the handover mechanism fails and the resources allocated to the Promineo-DT are released.
  • the main object of the handover mechanism is that the APs
  • the candidate group must be selected to cover the whole areas
  • the Promineo-AP can include a plurality of Bluetooth
  • a Promineo protocol is defined between the AP and the RA for the
  • the Promineo protocol is divided into a Promineo
  • the LAPs communicate with each other by using an UDP channel.
  • Each LAP generates UDP sockets having a standardized port number
  • the LAP may receive a redundant
  • LAP1 transmits/receives messages to/from LAP2 and
  • the LAP1 should memorize the sequence numbers of the messages
  • the LAP1 requests re-transmission by sending NACK.
  • the message is divided into a command type and an event type.
  • command type message commands the receiver to perform a specific
  • the LAP and the RA communicate with each other in the same
  • the RA generates one UDP
  • the RA RA
  • Table 3 shows message types used for the communication.
  • the main process informs the DT process to interrupt
  • the main process and the DT process transmit/receive messages
  • Table 4 shows types of the messages between
  • COMPLETE_WRI receives the message, it directly transmits
  • positions (position information) of each AP module are stored. The position
  • the position information is stored in an adjacent matrix form.
  • the RA stores the whole position information and the AP stores nodes
  • the RA reads the position information of the APs
  • a node of the graph is BT module of the AP and an edge indicates
  • the relative distance is divided into 1) near, 2) overlap
  • the module displayed as 'overlap' is set up as
  • the handover mechanism is performed on the module displayed as 'near'.
  • the position information is executed when the Promineo-AP is installed.
  • the RA must know topologies of the whole modules existing
  • Each LAP has a consecutive number starting from 0.
  • module number-LAP module number (0 ⁇ 3) (for example, module 2-1 : first module from second LAP).
  • index i LAP number*4+ LAP module number
  • index j is converted into module number
  • Edge size is shown as integers.
  • index i LAP module number
  • Fig. 7 shows one example of network constitution.
  • PAN user PANU
  • PANU Bluetooth wireless interface
  • the NAP in a state where the PANU is connected to a network
  • the NAP includes the Bluetooth wireless interface and the Ethernet
  • the NAP is operated in one of
  • the NAP connects Bluetooth Network Encapsulation Protocols (BNEP),
  • Ethernet ports as valid bridge ports, and converts and exchanges
  • the PANU is connected to the NAP according to the PAN profile for
  • the NAP monitors information obtained from the Bluetooth module
  • 'PANUO' specific PANU
  • the handover mechanism is initiated.
  • 'NAPO' is disconnected from the PANUO.
  • 'NAPO' is disconnected from the PANUO.
  • NAPO informs the Promineo-RA of initiation of the handover mechanism on
  • the NAPO transmits the handover command message including
  • command message perform paging for T pa ge_timeout to attempt connection to
  • PANUO by removing MAC address (BD_ADDR) of PANUO in the entry of its
  • the NAPO transmits the
  • packet filtering database receives the packets transmitted to the PANUO and buffers them in its memory.
  • the NAP1 transmits the whole Ethernet
  • the NAP can include a plurality of Bluetooth modules.
  • the NAP can be connected from a module different from the
  • the present inventions allow the Bluetooth to

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un système support d'un mécanisme de transfert/itinérance dans un réseau sans fil à courte distance utilisant bluetooth. Le système de l'invention comprend un point d'accès Promineo (Promineo-AP) qui sert de point d'accès réseau (NAP) pour connecter l'appareil utilisateur bluetooth par le biais d'un RLE. Le système comprend également un terminal de données Promineo (Promineo-DT) chargé à l'aide d'un logiciel d'application client bluetooth, qui sert de support au mécanisme de transfert/itinérance; et un agent d'itinérance Promineo (Promineo- RA) qui gère tout l'appareil bluetooth dans la zone de service et sert de support au mécanisme de transfert/itinérance dans la dorsale câblée.
PCT/KR2002/001533 2001-08-09 2002-08-09 Systeme support d'un mecanisme de transfert/itinerance dans un reseau sans fil a courte distance utilisant bluetooth Ceased WO2003015315A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2001/47937 2001-08-09
KR10-2001-0047937A KR100388421B1 (ko) 2001-08-09 2001-08-09 블루투스 기반의 근거리 무선 네트워크에서의핸드오프/로밍 지원 시스템

Publications (1)

Publication Number Publication Date
WO2003015315A1 true WO2003015315A1 (fr) 2003-02-20

Family

ID=19713018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2002/001533 Ceased WO2003015315A1 (fr) 2001-08-09 2002-08-09 Systeme support d'un mecanisme de transfert/itinerance dans un reseau sans fil a courte distance utilisant bluetooth

Country Status (2)

Country Link
KR (1) KR100388421B1 (fr)
WO (1) WO2003015315A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057805A1 (fr) * 2002-12-23 2004-07-08 Telefonaktiebolaget Lm Ericsson (Publ) Transition entre un reseau eclate bluetooth et un reseau local ethernet
GB2407004A (en) * 2003-10-10 2005-04-13 Toshiba Res Europ Ltd Handover of a wireless download to a mobile terminal
WO2005071998A1 (fr) * 2004-01-23 2005-08-04 Optimobile Ab Transfert pour un dispositif de communication portable entre un reseau local sans fil et un reseau etendu
WO2005025144A3 (fr) * 2003-09-05 2005-12-15 Magnus H Bergs Procede et systeme pour l'acces a des reseaux de donnees et/ou de communication au moyen de points d'acces sans fil, ainsi que programme informatique correspondant et support memoire correspondant lisible par ordinateur
WO2006029548A1 (fr) * 2004-09-13 2006-03-23 Ivt Software Technology Inc. Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth
CN100426918C (zh) * 2004-09-30 2008-10-15 中兴通讯股份有限公司 一种无线局域网内站点切换的方法
US7483995B2 (en) 2006-04-28 2009-01-27 Microsoft Corporation Coordinating a transition of a roaming client between wireless access points using another client in physical proximity
WO2009018774A1 (fr) * 2007-08-06 2009-02-12 Huawei Technologies Co., Ltd. Procédé, appareil et système de connexion de session dans un système de communication
US8514709B2 (en) 2003-12-19 2013-08-20 International Business Machines Corporation Autonomic disassociation of clients in a wireless local area network
US9986077B1 (en) * 2012-09-25 2018-05-29 Amazon Technologies, Inc. Providing hands-free service to multiple devices
US11178728B1 (en) * 2020-07-09 2021-11-16 Cassia Networks Inc. Method and system for wireless roaming
EP3348506B1 (fr) 2017-01-13 2022-03-09 Otis Elevator Company Système de communication et procédé de communication dans un environnement d'exploitation d'ascenseur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030063502A (ko) * 2002-01-22 2003-07-31 프로모바일테크 주식회사 이동통신단말기의 인터넷 서비스 로밍을 처리하는 무선랜시스템 및 그 방법
KR100643272B1 (ko) 2004-04-26 2006-11-10 삼성전자주식회사 조정자 기반 무선 네트워크 간의 네트워크 통신 방법 및장치
KR100745886B1 (ko) * 2005-11-01 2007-08-02 (주)클립컴 무선 액세스 포인트 단말기 및 그들을 포함하는 기업형 원폰 시스템
KR100741325B1 (ko) 2006-06-27 2007-07-20 삼성전자주식회사 블루투스 시스템에서 원격 명칭 획득을 위한 장치 및 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605957A1 (fr) * 1992-12-22 1994-07-13 NCR International, Inc. Système de réseau local radiophonique avec transfert des stations mobiles
EP0851633A2 (fr) * 1996-12-30 1998-07-01 Lucent Technologies Inc. Système et procédé de transfert dans un réseau local sans fil plaçant les données dans une mémoire tempon du point d'accès suivant
US20020023917A1 (en) * 2000-08-30 2002-02-28 Mary Hall-Grace Decorative heating pad
KR20020030504A (ko) * 2000-10-18 2002-04-25 구자홍 블루투스 기술을 이용한 사설 네트워크 및 이를 이용한통신 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605957A1 (fr) * 1992-12-22 1994-07-13 NCR International, Inc. Système de réseau local radiophonique avec transfert des stations mobiles
EP0851633A2 (fr) * 1996-12-30 1998-07-01 Lucent Technologies Inc. Système et procédé de transfert dans un réseau local sans fil plaçant les données dans une mémoire tempon du point d'accès suivant
US20020023917A1 (en) * 2000-08-30 2002-02-28 Mary Hall-Grace Decorative heating pad
KR20020030504A (ko) * 2000-10-18 2002-04-25 구자홍 블루투스 기술을 이용한 사설 네트워크 및 이를 이용한통신 방법

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057805A1 (fr) * 2002-12-23 2004-07-08 Telefonaktiebolaget Lm Ericsson (Publ) Transition entre un reseau eclate bluetooth et un reseau local ethernet
WO2005025144A3 (fr) * 2003-09-05 2005-12-15 Magnus H Bergs Procede et systeme pour l'acces a des reseaux de donnees et/ou de communication au moyen de points d'acces sans fil, ainsi que programme informatique correspondant et support memoire correspondant lisible par ordinateur
GB2407004A (en) * 2003-10-10 2005-04-13 Toshiba Res Europ Ltd Handover of a wireless download to a mobile terminal
GB2407004B (en) * 2003-10-10 2006-01-04 Toshiba Res Europ Ltd Wireless download to a mobile terminal
US8514709B2 (en) 2003-12-19 2013-08-20 International Business Machines Corporation Autonomic disassociation of clients in a wireless local area network
US9179387B2 (en) 2004-01-23 2015-11-03 Optimobile Ab Handover for a portable communication device between wireless local and wide area networks
WO2005071998A1 (fr) * 2004-01-23 2005-08-04 Optimobile Ab Transfert pour un dispositif de communication portable entre un reseau local sans fil et un reseau etendu
WO2006029548A1 (fr) * 2004-09-13 2006-03-23 Ivt Software Technology Inc. Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth
CN100426918C (zh) * 2004-09-30 2008-10-15 中兴通讯股份有限公司 一种无线局域网内站点切换的方法
US7483995B2 (en) 2006-04-28 2009-01-27 Microsoft Corporation Coordinating a transition of a roaming client between wireless access points using another client in physical proximity
US8102813B2 (en) 2006-04-28 2012-01-24 Microsoft Corporation Coordinating a transition of a roaming client between wireless access points using another client in physical proximity
WO2009018774A1 (fr) * 2007-08-06 2009-02-12 Huawei Technologies Co., Ltd. Procédé, appareil et système de connexion de session dans un système de communication
US9986077B1 (en) * 2012-09-25 2018-05-29 Amazon Technologies, Inc. Providing hands-free service to multiple devices
US10609199B1 (en) 2012-09-25 2020-03-31 Amazon Technologies, Inc. Providing hands-free service to multiple devices
US11570292B1 (en) 2012-09-25 2023-01-31 Amazon Technologies, Inc. Providing hands-free service to multiple devices
EP3348506B1 (fr) 2017-01-13 2022-03-09 Otis Elevator Company Système de communication et procédé de communication dans un environnement d'exploitation d'ascenseur
AU2018200284B2 (en) * 2017-01-13 2023-11-09 Otis Elevator Company Communication system and method of communication in an elevator operating environment
US11178728B1 (en) * 2020-07-09 2021-11-16 Cassia Networks Inc. Method and system for wireless roaming
WO2022011074A1 (fr) * 2020-07-09 2022-01-13 Cassia Networks Inc. Procédé et système d'itinérance sans fil

Also Published As

Publication number Publication date
KR20030013757A (ko) 2003-02-15
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