Controlling handovers in radio communication networks based on predictions of received signal strenght indicators (RSSI)

Steuerung des Weiterreichens in Funkkommunikationsnetzen basierend auf Vorrausschätzungen von Empfangssignalstärkenanzeigern (RSSI)

Contrôle de transfert dans des réseaux de communication radio à base de prédictions des indicateurs d'intensité d'un signal reçu (RSSI)

Abstract

A method and mobile communications terminal for controlling handovers in WMANs, WLANs and between WMANs and WLANs, wherein the mobile communications terrminal being in communication with a first access point of a plurality of access points. The method comprises the steps of forecasting a radio signal parameter, RSSI, for a predetermined time period for each of the plurality of access points, comparing the forecast radio signal parameter, for each of the plurality of access points with a threshold value associated with each of the plurality of access points, and making a decision as to whether to connect from the first access point to a second access point of the plurality of access points.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    US-2005047370-A1March 03, 2005Kotzin Michael D., Binzel Charles P., Pecen Mark E., Spear Stephen L.Communication controller and method for managing the traffic flow of a communication connection during a cell reselection

NO-Patent Citations (24)

    Title
    A. MISHRA; M.H. SHIN; W. ALBAUGH: "An empirical analysis of the IEEE 802.11 Mac layer handoff process", ACM SIGCOMM COMPUTER COMMUNICATION REVIEW, vol. 3, April 2003 (2003-04-01), pages 93 - 102, XP002388507
    C.C. TSENG ET AL.: "Location-based Fast Handoff for 802.11 Networks", IEEE COMMUNICATIONS LETTERS, vol. 9, April 2005 (2005-04-01), pages 304 - 306
    CHING-HUNG LEE ET AL: "An intelligent handoff algorithm for wireless communication systems using grey prediction and fuzzy decision system", NETWORKING, SENSING AND CONTROL, 2004 IEEE INTERNATIONAL CONFERENCE ON TAIPEI, TAIWAN MARCH 21-23, 2004, PISCATAWAY, NJ, USA,IEEE, vol. 1, 21 March 2004 (2004-03-21), pages 541 - 546, XP010705817, ISBN: 978-0-7803-8193-3
    G. BIANCHI: "Performance analysis of the IEEE 802.11 distributed coordination function", IEEE J. SELECT. AREAS COMMUN., vol. 18, no. 3, 2000, pages 535 - 547, XP011449989, DOI: doi:10.1109/49.840210
    G. P. POLLINI: "Trends in Handover Design", IEEE COMMUNICATIONS MAGAZINE, March 1996 (1996-03-01), XP000557380, DOI: doi:10.1109/35.486807
    G. SCHWARZ: "Estimating the dimension of a model", ANNAL OF STATISTICS, vol. 6, 1978, pages 461 - 464, XP008104155
    H. AKAIKE: "A new look at the statistical model identification", IEEE TRANSACTIONS ON AUTOMATIC CONTROL, vol. 19, no. 6, 1974, pages 716 - 723, XP000675871, DOI: doi:10.1109/TAC.1974.1100705
    H. VELAYOS; G. KARLSSON: "Techniques to reduce IEEE 802.11 b Mac layer handover time", TECHNICAL REPORT TRITA-IMIT-LCN R 03, 2 April 2003 (2003-04-02)
    HUAIYU LIU ET AL: "A smart triggering scheme to reduce service interruption during heterogeneous handovers", DEPENDABLE SYSTEMS AND NETWORKS WITH FTCS AND DCC, 2008. DSN 2008. IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 24 June 2008 (2008-06-24), pages 430 - 439, XP031324516, ISBN: 978-1-4244-2397-2
    J. MCNAIR; F. ZHU: "Vertical handoffs in fourth-generation multinetwork environments", IEEE WIRELESS COMMUNICATIONS, vol. 11, June 2004 (2004-06-01), pages 8 - 15, XP001217412, DOI: doi:10.1109/MWC.2004.1308935
    K. ITO: "On stochastic differential equations", AMERICAN MATHEMATICAL SOCIETY, vol. 4, 1951, pages 1 - 51
    K.D. WONG; D.C. COX: "A pattern recognition system for handoff algorithms", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 18, no. 7, July 2000 (2000-07-01), XP000950214, DOI: doi:10.1109/49.857930
    LUCENT TECHNOLOGIES: "Roaming with Orinoco/IEEE 802.11", TECHNICAL REPORT, December 1998 (1998-12-01)
    M. AKAR; U. MITRA: "Variations on Optimal and Suboptimal Handoff Control for Wireless Communication Systems", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 19, June 2001 (2001-06-01), pages 1173 - 1185, XP011055382
    M. LOTT ET AL.: "Interworking of WLAN and 3G systems", IEE PROCEEDINGS ON COMMUNICATIONS, vol. 151, October 2004 (2004-10-01), pages 507 - 513, XP006022617, DOI: doi:10.1049/ip-com:20040600
    M. STEMM; R. H. KATZ: "Vertical handoffs in wireless overlay networks", MOBILE NETWORKS AND APPLICATIONS, vol. 3, 1998, pages 335 - 350
    Q. ZHANG ET AL.: "Efficient mobility management for vertical handoff between WMAN and WLAN", IEEE COMMUNICATIONS MAGAZINE, vol. 41, November 2003 (2003-11-01), pages 102 - 108
    R. H. JONES.: "Maximum likelihood fitting of ARMA models to time series with missing observations", TECHNOMETRICS, vol. 22, 1980, pages 389 - 395
    S. PERIYALWAL ET AL.: "Future mobile broadband wireless networks: a radio resource management perspective", WIRELESS COMMUNICATIONS AND MOBILE COMPUTING, vol. 3, 2003, pages 1 - 13
    SHIANN-TSONG SHEU ET AL: "Using grey prediction theory to reduce handoff overhead in cellular communication systems", PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2000. PIMRC 2000. TH E 11TH IEEE INTERNATIONAL SYMPOSIUM ON SEPT. 18-21, 2000, PISCATAWAY, NJ, USA,IEEE, vol. 2, 18 September 2000 (2000-09-18), pages 782 - 786, XP010520742, ISBN: 978-0-7803-6463-9
    V. MHATRE; K. PAPAGIANNAKI: "Using smart triggers for improved user performance in 802.11 wireless networks", MOBISYS, 6 June 2006 (2006-06-06), XP001541428, DOI: doi:10.1145/1134680.1134706
    Y. IRAQI; R. BOUTABA: "Resource management issues in future wireless multimedia networks", SPECIAL ISSUE ON THE MANAGEMENT OF MULTIMEDIA NETWORKING, vol. 9, no. 3, 2000, pages 231 - 260
    YONG-HOON CHOI ET AL: "Cross-Layer Handover Optimization Using Linear Regression Model", INFORMATION NETWORKING, 2008. ICOIN 2008. INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 23 January 2008 (2008-01-23), pages 1 - 4, XP031238864, ISBN: 978-89-960761-1-7
    Z. YANG; X. WANG: "Joint Mobility Tracking and Handoff in Cellular Networks via Sequential Monte Carlo Filtering", INFOCOMM, vol. 2, 2002, pages 968 - 975, XP011080338

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