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1. (WO2003009504) MULTI−CARRIER TRANSMISSION APPARATUS, MULTI−CARRIER RECEPTION APPARATUS, AND MULTI−CARRIER RADIO COMMUNICATION METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2003/009504 International Application No.: PCT/JP2002/006712
Publication Date: 30.01.2003 International Filing Date: 03.07.2002
IPC:
H04J 11/00 (2006.01) ,H04B 1/707 (2011.01) ,H04B 7/005 (2006.01) ,H04B 7/26 (2006.01) ,H04J 13/00 (2011.01) ,H04W 52/04 (2009.01) ,H04W 52/34 (2009.01) ,H04L 27/26 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
11
Orthogonal multiplex systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
69
Spread spectrum techniques
707
using direct sequence modulation
[IPC code unknown for H04B 7/05]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
24
for communication between two or more posts
26
at least one of which is mobile
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
13
Code division multiplex systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
52
Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04
TPC [Transmission power control]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
52
Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04
TPC [Transmission power control]
30
using constraints in the total amount of available transmission power
34
TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
26
Systems using multi-frequency codes
Applicants: MIYOSHI, Kenichi[JP/JP]; JP (UsOnly)
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.[JP/JP]; 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501, JP (AllExceptUS)
Inventors: MIYOSHI, Kenichi; JP
Agent: WASHIDA, Kimihito; 5th Floor, Shintoshicenter Bldg. 24-1, Tsurumaki 1-chome Tama-shi Tokyo 206-0034, JP
Priority Data:
2001-21454513.07.2001JP
Title (EN) MULTI−CARRIER TRANSMISSION APPARATUS, MULTI−CARRIER RECEPTION APPARATUS, AND MULTI−CARRIER RADIO COMMUNICATION METHOD
(FR) EMETTEUR, RECEPTEUR ET PROCEDE DE COMMUNICATION RADIO SUR DES PORTEUSES MULTIPLES
Abstract:
(EN) A sub−carrier transmission ON/OFF control method capable of improving the information transmission efficiency and the reception performance while maintaining the number of transmission bits in the MC−CDMA method. Moreover, a sub−carrier transmission power control method capable of improving the information transmission efficiency and the reception performance in the MC−CDMA method or the OFDM method. In the former method, i.e., in the MC−CDMA method, a sub−carrier whose reception quality is low and for which no transmission power is assigned is not transmitted (transmission OFF) and the transmission power for it is assigned for a sub−carrier for which transmission power is assigned (transmission ON) and the sub−carrier is transmitted (sub−carrier transmission ON/OFF control). In the latter method, i.e., in the MC−CDMA method or the OFDM method, according to the reception level of each sub−carrier at the reception side, transmission power is increased for transmission of a sub−carrier as the reception level increases and the transmission power is decreased for transmission of a sub−carrier as the reception level decreases (sub−carrier inverse transmission power control).
(FR) Procédé de commande de MARCHE/ARRET de la transmission sur une sous-porteuse pouvant améliorer l'efficacité de transmission d'informations et la capacité de la réception, tout en conservant le nombre de bits de transmission dans le procédé MC-AMDC. Egalement, procédé de commande de la puissance de transmission d'une sous-porteuse pouvant améliorer l'efficacité de la transmission d'informations et la capacité de réception du procédé MC-AMDC ou OFDM. Dans le procédé MC-AMDC, la transmission d'une sous-porteuse, dont la qualité de réception est basse et qui est dépourvue de puissance de transmission, n'est pas effectuée (ARRET TRANSMISSION), la puissance de transmission de cette sous-porteuse étant affectée à une autre sous-porteuse (MARCHE TRANSMISSION), ce qui permet de transmettre cette dernière (commande MARCHE/ARRET TRANSMISSION des sous-porteuses). Ces procédés MC-AMDC ou OFDM, en fonction du niveau de réception de chaque sous-porteuse côté réception, permettent d'améliorer la puissance de transmission afin de transmettre une sous-porteuse simultanément à l'augmentation du niveau de réception et à la diminution de la puissance de transmission, de manière à transmettre une sous-porteuse simultanément à la diminution du niveau de réception (commande inverse de la puissance de transmission de la sous-porteuse).
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)