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Machine translation
1. (WO2010118305) METHOD AND APPARATUS FOR GENERATING REFERENCE SIGNALS FOR ACCURATE TIME-DIFFERENCE OF ARRIVAL ESTIMATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/118305    International Application No.:    PCT/US2010/030516
Publication Date: 14.10.2010 International Filing Date: 09.04.2010
IPC:
G01S 5/02 (2010.01)
Applicants: MOTOROLA MOBILITY, INC. [US/US]; 600 North US Highway 45 Libertyville, IL 60048 (US) (For All Designated States Except US).
FRANK, Colin, D. [US/US]; (US) (For US Only).
KRISHNAMURTHY, Sandeep, H. [IN/US]; (US) (For US Only).
STEWART, Kenneth, A. [US/US]; (US) (For US Only).
ZHUANG, Xiangyang [CN/US]; (US) (For US Only).
LOVE, Robert, T. [US/US]; (US) (For US Only)
Inventors: FRANK, Colin, D.; (US).
KRISHNAMURTHY, Sandeep, H.; (US).
STEWART, Kenneth, A.; (US).
ZHUANG, Xiangyang; (US).
LOVE, Robert, T.; (US)
Agent: BOWLER II, Roland, K.; 600 North US Highway 45 Libertyville, Illinois 60048 (US)
Priority Data:
61/168,189 09.04.2009 US
12/756,777 08.04.2010 US
Title (EN) METHOD AND APPARATUS FOR GENERATING REFERENCE SIGNALS FOR ACCURATE TIME-DIFFERENCE OF ARRIVAL ESTIMATION
(FR) PROCÉDÉ ET APPAREIL DE GÉNÉRATION DE SIGNAUX DE RÉFÉRENCE POUR ESTIMATION PRÉCISE DE DIFFÉRENCE DE TEMPS D'ARRIVÉE
Abstract: front page image
(EN)A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols. Upon receiving the subframe, a wireless communication device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.
(FR)Une station de base communique un signal de référence de positionnement (PRS) à des dispositifs de communication sans fil sur une liaison descendante dans un système de communication sans fil : par encodage d'un signal PRS dans un premier ensemble de ressources de transmission, et encodage d'autres informations dans un second ensemble de ressources de transmission; par multiplexage des deux ensembles de ressources de transmission dans une sous-trame telle que le premier ensemble de ressources est multiplexé en au moins une partie d'un premier ensemble de symboles multiplexés par répartition orthogonale de la fréquence (modulation OFDM) basée sur un identificateur associé à la station de base, et telle que le second ensemble de ressources est multiplexé en un second ensemble de symboles OFDM. A la réception de la sous-trame, un dispositif de communication sans fil détermine quel ensemble de ressources de transmission contient le signal PRS, en se basant sur l'identificateur associé à la station de base ayant transmis la sous-trame, et traite l'ensemble de ressources contenant le signal PRS pour estimer l'information de temporisation (c'est-à-dire, le temps d'arrivée).
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, 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, 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)