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1. (WO2007021153) VIRTUAL MULTIPLE ANTENNA METHOD FOR OFDM SYSTEM AND OFDM-BASED CELLULAR SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/021153    International Application No.:    PCT/KR2006/003247
Publication Date: 22.02.2007 International Filing Date: 18.08.2006
IPC:
H04B 7/04 (2006.01)
Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE [KR/KR]; 161, Gajeong-dong, Yusong-gu, Daejeon-city 305-350 (KR) (For All Designated States Except US).
CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMY COOPERATION FOUNDATION [KR/KR]; 221, Heukseok-dong, Dongjak-gu, Seoul 155-756 (KR) (For All Designated States Except US).
LEE, Hyo-Jin [KR/KR]; (KR) (For US Only).
AHN, Jae-Young [KR/KR]; (KR) (For US Only).
CHO, Yong-Soo [KR/KR]; (KR) (For US Only).
LEE, Kyu-In [KR/KR]; (KR) (For US Only).
PARK, Kyung-Won [KR/KR]; (KR) (For US Only)
Inventors: LEE, Hyo-Jin; (KR).
AHN, Jae-Young; (KR).
CHO, Yong-Soo; (KR).
LEE, Kyu-In; (KR).
PARK, Kyung-Won; (KR)
Agent: Y.P. LEE, MOCK & PARTNERS; 1575-1, Seocho-dong, Seocho-gu, Seoul 137-875 (KR)
Priority Data:
10-2005-0076463 19.08.2005 KR
10-2005-0081778 02.09.2005 KR
10-2006-0074792 08.08.2006 KR
Title (EN) VIRTUAL MULTIPLE ANTENNA METHOD FOR OFDM SYSTEM AND OFDM-BASED CELLULAR SYSTEM
(FR) PROCEDE A ANTENNES MULTIPLES VIRTUEL POUR SYSTEME OFDM ET SYSTEME CELLULAIRE BASE SUR OFDM
Abstract: front page image
(EN)Provided is a virtual multi-antenna method for an orthogonal frequency division multiplexing (OFDM) system and an OFDM-based cellular system. The virtual multi-an tenna method includes grouping sub-carriers in a frequency domain of an OFDM symb ol and generating at least one group including G sub-carriers; and regarding the G sub- carriers included in the at least one group as multiple channels used in a multi-antenna technique and virtually applying the multi-antenna technique to the transmission and rec eption of the OFDM symbol. The virtual multi-antenna method can effectively reduce an interference signal and obtain the effects of a spatial division multiple access (SDMA ) technique without physically using multiple antennas.
(FR)L'invention concerne un procédé à antennes multiples virtuel pour un système de multiplexage par répartition orthogonale de la fréquence (OFDM) et un système cellulaire basé sur le multiplexage OFDM. Le procédé à antennes multiples virtuel consiste à regrouper les sous-porteuses dans un domaine fréquentiel d'un symbole OFDM et à générer au moins un groupe comprenant G sous-porteuses ; et à considérer les G sous-porteuses comprises dans le ou les groupes en tant que canaux multiples utilisés dans une technique à antennes multiples et à appliquer virtuellement la technique à antennes multiples à la transmission et à la réception du symbole OFDM. Le procédé à antennes multiples virtuel peut permettre de réduire efficacement un signal d'interférence et d'obtenir les effets d'une technique d'accès multiple par répartition spatiale (SDMA) sans utilisation physique d'antennes multiples.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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: Korean (KO)