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1. (WO2010080362) METHODS AND SYSTEMS FOR LOAD-ADAPTIVE BACKOFF FOR WIMAX RANGING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/080362 International Application No.: PCT/US2009/067898
Publication Date: 15.07.2010 International Filing Date: 14.12.2009
Chapter 2 Demand Filed: 16.06.2010
IPC:
H04W 74/08 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
74
Wireless channel access, e.g. scheduled or random access
08
Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
Applicants:
QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US (AllExceptUS)
CHIN, Tom [US/US]; US (UsOnly)
LEE, Kuo-Chun [US/US]; US (UsOnly)
Inventors:
CHIN, Tom; US
LEE, Kuo-Chun; US
Agent:
FRANKS, Ross, L.; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Priority Data:
12/337,63318.12.2008US
Title (EN) METHODS AND SYSTEMS FOR LOAD-ADAPTIVE BACKOFF FOR WIMAX RANGING
(FR) PROCÉDÉS ET SYSTÈMES POUR DÉLAI D'ATTENTE ADAPTATIF À LA CHARGE POUR SIGNALISATION WIMAX
Abstract:
(EN) Certain embodiments of the present disclosure provide an adaptive technique to determine the size of a ranging back-off window according to the load of a ranging channel. A mobile station counts (510) a total number of transmission opportunities L allocated for the ranging channel over N consecutive frames. The mobile station counts (520) a total number K of received range-response messages over M consecutive frames, and calculates (530) a ranging channel loading factor R at the end of the Mth frame as a ration between K and L.
(FR) La présente invention porte, dans certains modes de réalisation, sur une technique adaptative de détermination de la taille d'une fenêtre de délai d'attente de signalisation (« ranging ») selon la charge d'un canal de signalisation. Une station mobile compte (510) un nombre total d'opportunités de transmission L allouées pour le canal de signalisation sur N trames consécutives. La station mobile compte (520) un nombre total K de messages de réponse de signalisation reçus sur M trames consécutives, et calcule (530) un facteur de charge de canal de signalisation R à la fin de la Mième trame sous la forme d'un rapport entre K et L.
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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, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, 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)
Also published as:
EP2377361JP2012513168CN102257871KR1020110098958IN4115/CHENP/2011