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1. (WO2012089145) SOFTER COMBINATION METHOD AND DEVICE FOR RADIO LINK SIGNALS
PCT Biblio. Data
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Pub. No.:
WO/2012/089145
International Application No.:
PCT/CN2011/084935
Publication Date:
05.07.2012
International Filing Date:
29.12.2011
IPC:
H04L 1/16
(2006.01),
H04L 1/18
(2006.01),
H04B 7/06
(2006.01)
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
12
by using return channel
16
in which the return channel carries supervisory signals, e.g. repetition request signals
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
12
by using return channel
16
in which the return channel carries supervisory signals, e.g. repetition request signals
18
Automatic repetition systems, e.g. van Duuren system
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
04
using a plurality of spaced independent aerials
06
at transmitting station
Applicants:
HUAWEI TECHNOLOGIES CO., LTD.
[CN/CN]; Huawei Administration Building, Bantian, Longgang Shenzhen, Guangdong 518129 (CN)
(For All Designated States Except US)
.
WANG, Zongjie
[CN/CN]; (CN)
(For US Only)
.
LIU, Zheng
[CN/CN]; (CN)
(For US Only)
Inventors:
WANG, Zongjie
; (CN).
LIU, Zheng
; (CN)
Priority Data:
201010612849.6
29.12.2010
CN
Title
(EN)
SOFTER COMBINATION METHOD AND DEVICE FOR RADIO LINK SIGNALS
(FR)
PROCÉDÉ ET DISPOSITIF DE COMBINAISON ASSOUPLIE POUR SIGNAUX DE LIAISON RADIO
(ZH)
无线链路信号的更软合并方法和设备
Abstract:
(EN)
The embodiments of the present invention provide a softer combining method and device for radio link signals, so as to achieve a maximum signal-to-noise ratio of the radio link signals. The method comprises: a primary serving base station receiving log likelihood ratio (LLR) soft value related information obtained by all secondary base stations in an active set by decoding a data frame sent from a user equipment, or LLR soft value related information obtained by optimizing the LLR soft value related information; the primary serving base station performing maximum ratio combining on LLR soft value related information obtained by the primary serving base station by decoding the data frame, and the received LLR soft value related information from the secondary serving base stations, and inputting a result to a decoder. The method provided by the present invention fully utilizes related information of other serving base stations. When a data frame received by a link where the primary serving base station is located cannot be decoded correctly, LLR soft value related information of the same data frame received on other links can still be used to obtain a maximum diversity gain, so as to correctly decode the data frame, thereby improving reliability of data transmission.
(FR)
L'invention concerne, selon des modes de réalisation, un procédé et un dispositif de combinaison assouplie pour des signaux de liaison radio visant à optimiser le rapport signal/bruit des signaux de liaison radio. Le procédé comprend les étapes suivantes : la réception, par une station de base de desserte principale, d'informations relatives à des valeurs souples de rapport de vraisemblance logarithmique (LLR) obtenues par un ensemble de stations de base de desserte secondaires dans un groupe actif par décodage d'une trame de données transmise par un équipement d'utilisateur, ou d'informations relatives à des valeurs souples de LLR obtenues par optimisation des informations relatives aux valeurs souples de LLR ; la mise en œuvre, par la station de base de desserte principale, d'une combinaison à rapport maximal sur les informations relatives aux valeurs souples de LLR obtenues par la station de base de desserte principale par décodage de la trame de données, et sur les informations relatives aux valeurs souples de LLR reçues des stations de base de desserte secondaires ; et l'application du résultat à l'entrée d'un décodeur. Le procédé selon l'invention utilise de façon optimale des informations associées à d'autres stations de base de desserte. S'il s'avère impossible de décoder correctement une trame de données reçue par une liaison avec une station de base de desserte principale, il est toujours possible d'utiliser les informations relatives aux valeurs souples de LLR pour obtenir un gain de diversité maximal de façon à décoder correctement la trame de données, et assurer ainsi une transmission de données plus fiable.
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, QA, RO, RS, RU, RW, 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, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, RS, 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:
Chinese (
ZH
)
Filing Language:
Chinese (
ZH
)