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1. (WO2007021122) METHOD FOR VARIABLE SUB-CARRIER MAPPING AND DEVICE USING THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/021122    International Application No.:    PCT/KR2006/003197
Publication Date: 22.02.2007 International Filing Date: 16.08.2006
IPC:
H04L 27/26 (2006.01)
Applicants: SAMSUNG ELECTRONICS CO., LTD. [KR/KR]; 416, Maetan-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do 442-742 (KR) (For All Designated States Except US).
BEIJING SAMSUNG TELECOM R & D CENTER [CN/CN]; 4F Science And Technology Tower No.11 ZhongguancunNan Lu, Haidian District, Beijing 100081 (CN) (For All Designated States Except US).
BU, Bing [CN/CN]; (CN) (For US Only).
LI, Xiaoqiang [CN/CN]; (CN) (For US Only).
ZHANG, Yujian [CN/CN]; (CN) (For US Only).
LEE, Ju-Ho [KR/KR]; (KR) (For US Only)
Inventors: BU, Bing; (CN).
LI, Xiaoqiang; (CN).
ZHANG, Yujian; (CN).
LEE, Ju-Ho; (KR)
Agent: LEE, Keon-Joo; Mihwa Bldg. 110-2, Myongryun-dong 4-ga, Chongro-gu, Seoul 110-524 (KR)
Priority Data:
200510092622.2 19.08.2005 CN
Title (EN) METHOD FOR VARIABLE SUB-CARRIER MAPPING AND DEVICE USING THE SAME
(FR) PROCEDE DE MAPPAGE DE SOUS-PORTEUSE VARIABLE ET SON DISPOSITIF
Abstract: front page image
(EN)A variable sub-carrier mapping method comprising steps of: applying different bit interleaving schemes to different transmissions of a hybrid automatic retransmission request(HARQ) process in side of transmitter; and in the side of the transmitter, modulating symbols onto sub-carriers for transmitting. Different transmissions in one HARQ process adopt different bit interleavers or different symbol-to-sub-carrier mapping methods so as to realize that the same bit of different transmissions in one HARQ process is transmitted via different sub-carriers. Therefore, the system achieves the frequency diversity gain and reduces the probability of failure of HARQ transmission caused by that some bits are always transmitted via the sub-carrier with the same deep fading. In this way, the average HARQ retransmission times can be reduced and the system throughput can be improved.
(FR)L'invention concerne un procédé de mappage de sous-porteuse variable consistant: à appliquer différents mécanismes d'entrelacement de bits à différentes transmissions d'un processus de demande de retransmission automatique hybride (HARQ) sur un côté d'émetteur; et à moduler, du côté émetteur, des symboles sur des sous-porteuses afin de les transmettre. Les différentes transmissions d'un processus HARQ peuvent choisir différents entrelaceurs de bits ou différents procédés de mappage de symboles-sous-porteuses afin de réaliser que le même bit de différentes transmissions d'un processus HARQ est transmis via différentes sous-porteuses. Toutefois, le système permet de réaliser un gain de diversité de fréquence et de limiter l'éventualité de défaillance de transmission HARQ entraînée par le fait que certains bits sont toujours transmis via la sous-porteuse avec le même évanouissement profond. De ce fait, on peut limiter les temps moyens de retransmission HARQ et améliorer le débit du système.
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, KR, 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, 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: English (EN)