(12) International Application Status Report

Received at International Bureau: 05 July 2010 (05.07.2010)

Information valid as of: 09 March 2011 (09.03.2011)

Report generated on: 21 January 2021 (21.01.2021)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2011/00553313 January 2011 (13.01.2011) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/US2010/03952222 June 2010 (22.06.2010) English (EN)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
61/219,308 (US)22 June 2009 (22.06.2009) Priority document received (in compliance with PCT Rule 17.1)
12/816,708 (US)16 June 2010 (16.06.2010) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
H04L 25/03 (2006.01)

(71) Applicant(s):
QUALCOMM Incorporated [US/US]; 5775 Morehouse Drive San Diego, California 92121 (US) (for all designated states except US)
LUO, Tao [CA/US]; 5775 Morehouse Drive San Diego, California 92121 (US) (for US only)
DOAN, Dung N. [VN/US]; 5775 Morehouse Drive San Diego, California 92121 (US) (for US only)
YOO, Taesang [KR/US]; 5775 Morehouse Drive San Diego, California 92121 (US) (for US only)
ZHANG, Xiaoxia [CN/US]; 5775 Morehouse Drive San Diego, California 92121 (US) (for US only)
SEONG, Kibeom [KR/US]; 5775 Morehouse Drive San Diego, California 92121 (US) (for US only)

(72) Inventor(s):
LUO, Tao; 5775 Morehouse Drive San Diego, California 92121 (US)
DOAN, Dung N.; 5775 Morehouse Drive San Diego, California 92121 (US)
YOO, Taesang; 5775 Morehouse Drive San Diego, California 92121 (US)
ZHANG, Xiaoxia; 5775 Morehouse Drive San Diego, California 92121 (US)
SEONG, Kibeom; 5775 Morehouse Drive San Diego, California 92121 (US)

(74) Agent(s):
DO, Liem T.; 5775 Morehouse Drive San Diego, California 92121 (US)

(54) Title (EN): PRECODING CONTROL CHANNELS IN WIRELESS NETWORKS
(54) Title (FR): CANAUX DE COMMANDE DE PRÉCODAGE DANS DES RÉSEAUX SANS FIL

(57) Abstract:
(EN): Systems and methodologies are described that facilitate precoding signals transmitted over downlink control channels to provide transmit diversity. A dedicated reference signal (DRS) related to a wireless device can additionally be precoded such that the wireless device can determine a precoder or related parameters based at least in part on performing a channel estimate for the precoded DRS signal. The wireless device can utilize the determined precoder or related parameters to decode precoded signals received over downlink control channel resources. Additionally or alternatively, an access point can signal a sequence of precoders to the wireless device. The access point can cycle through the sequence of precoders to precode signals for transmission over downlink control channel resources, and the wireless device can decode the signals based at least in part on similarly cycling through the precoders for received signals.
(FR): L'invention porte sur des systèmes et des méthodologies facilitant le précodage de signaux transmis sur des canaux de commande de liaison descendante afin de fournir une diversité de transmission. On peut de plus précoder un signal de référence dédié (DRF) lié à un dispositif sans fil de telle sorte que le dispositif sans fil puisse déterminer un précodeur ou des paramètres liés sur la base au moins en partie de la réalisation d'une estimation de canal pour le signal DRS précodé. Le dispositif sans fil peut utiliser le précodeur déterminé ou des paramètres liés pour décoder des signaux précodés reçus sur des ressources de canal de commande de liaison descendante. De plus ou en variante, un point d'accès peut signaler une séquence de précodeurs au dispositif sans fil. Le point d'accès peut parcourir la séquence de précodeurs afin de précoder les signaux pour une transmission sur des ressources de canal de commande en liaison descendante, et le dispositif sans fil peut décoder les signaux sur la base au moins en partie d'un cyclage similaire par les précodeurs pour les signaux reçus.

International search report:
Received at International Bureau: 21 February 2011 (21.02.2011) [EP]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) 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
European Patent Office (EPO) : 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, SE, SI, SK, SM, TR
African Intellectual Property Organization (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG
African Regional Intellectual Property Organization (ARIPO) : BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW
Eurasian Patent Organization (EAPO) : AM, AZ, BY, KG, KZ, MD, RU, TJ, TM

Declarations:
Declaration made as applicant's entitlement, as at the international filing date, to apply for and be granted a patent (Rules 4.17(ii) and 51bis.1(a)(ii)), in a case where the declaration under Rule 4.17(iv) is not appropriate
Declaration made as applicant's entitlement, as at the international filing date, to claim the priority of the earlier application, where the applicant is not the applicant who filed the earlier application or where the applicant's name has changed since the filing of the earlier application (Rules 4.17(iii) and 51bis.1(a)(iii))