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1. (WO2012110442) TROUBLESHOOTING WI-FI CONNECTIVITY BY MEASURING THE ROUND TRIP TIME OF PACKETS SENT WITH DIFFERENT MODULATION RATES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/110442    International Application No.:    PCT/EP2012/052380
Publication Date: 23.08.2012 International Filing Date: 13.02.2012
IPC:
H04W 24/06 (2009.01), H04L 12/26 (2006.01)
Applicants: THOMSON LICENSING [FR/FR]; 1-5 rue Jeanne d'Arc F-92130 Issy-les-Moulineaux (FR) (For All Designated States Except US).
VAN DOORSELAER, Karel [BE/BE]; (BE) (For US Only).
VAN OOST, Koen [BE/BE]; (BE) (For US Only).
DUMET, Sylvain [FR/BE]; (BE) (For US Only).
VAN DE POEL, Dirk [BE/BE]; (BE) (For US Only)
Inventors: VAN DOORSELAER, Karel; (BE).
VAN OOST, Koen; (BE).
DUMET, Sylvain; (BE).
VAN DE POEL, Dirk; (BE)
Agent: ARNOLD, Klaus-Peter; Deutsche Thomson OHG European Patent Operations Karl-Wiechert-Allee 74 30625 Hannover (DE)
Priority Data:
11447002.4 14.02.2011 EP
11447003.2 15.02.2011 EP
Title (EN) TROUBLESHOOTING WI-FI CONNECTIVITY BY MEASURING THE ROUND TRIP TIME OF PACKETS SENT WITH DIFFERENT MODULATION RATES
(FR) DÉPANNAGE DE LA CONNECTIVITÉ WIFI PAR MESURE DU TEMPS ALLER-RETOUR DE PAQUETS ÉMIS AVEC DES TAUX DE MODULATION DIFFÉRENTS
Abstract: front page image
(EN)The application relates to a "wireless communication network including a station and an access point" which is in particular a Wi-Fi network according to the IEEE 802.11 standards. Internet service providers are searching for ways to get a better understanding of the end-user's wireless environment including link quality and performance. The proposed method calculates a performance value based on measured round trip times which are sent at different modulation rates. Based the change of performance in dependence of the modulation rate conclusions about the possible source of performance problems can be drawn, in particular it can be distinguished between [Bluetooth] interference (C and E) and distance between station and access point being too large (B).
(FR)L'invention concerne un "réseau de communication sans fil comportant une station et un point d'accès" constituant notamment un réseau Wifi conformément aux normes IEEE 802.11. Les fournisseurs de services internet cherchent des moyens permettant d'assurer une meilleure compréhension de l'environnement sans fil de l'utilisateur final, y compris la qualité et les performances d'une liaison. Le procédé proposé calcule une valeur de performance sur la base des temps aller-retour mesurés obtenus à des taux de modulation différents. Sur la base de la variation des performances en fonction du taux de modulation, on peut tirer des conclusions quant à la source possible de problèmes affectant les performances. Il est notamment possible de distinguer un brouillage [Bluetooth] (C et E) du fait que la distance entre la station et le point d'accès est trop importante (B).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)