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1. (WO2010148747) DEVICE AND METHOD FOR SENDING CHANNEL QUALITY INFORMATION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/148747 International Application No.: PCT/CN2010/072069
Publication Date: 29.12.2010 International Filing Date: 22.04.2010
IPC:
H04W 16/00 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
16
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
Applicants: JIANG, Jing[CN/CN]; CN (UsOnly)
ZHANG, Chenchen[CN/CN]; CN (UsOnly)
ZHU, Changqing[CN/CN]; CN (UsOnly)
ZTE CORPORATION[CN/CN]; ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan Shenzhen, Guangdong 518057, CN (AllExceptUS)
Inventors: JIANG, Jing; CN
ZHANG, Chenchen; CN
ZHU, Changqing; CN
Agent: AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE; Suite B 1601A, 8 Xue Qing Rd. Haidian, Beijing 100192 , CN
Priority Data:
200910147388.722.06.2009CN
Title (EN) DEVICE AND METHOD FOR SENDING CHANNEL QUALITY INFORMATION
(FR) DISPOSITIF ET PROCÉDÉ D'ENVOI D'INFORMATIONS DE QUALITÉ DE CANAL
(ZH) 一种信道质量信息的发送装置及方法
Abstract:
(EN) A device and method for sending channel quality information are provided by the present invention, so that the feedback overhead is reduced when a terminal feeds the quality information back to a base station, and the feedback precision is improved. Wherein the method includes: the direct channel information obtained by a mobile terminal is divided into the slowly varying coarse-grained channel information and the quickly varying fine-grained channel information; the feedback grain size of the coarse-grained channel information indicates a full-bandwidth and sub-bands, the feedback period of the sub-band is a multiple of a sub-frame's; the feedback grain size of the fine-grained channel information indicates sub-bands or a full-bandwidth, the feedback period is a multiple of a sub-frame's. The feedback information of the present invention can trace the variety of the channel better, and facilitate reducing the feedback overhead.
(FR) La présente invention porte sur un dispositif et un procédé d'envoi d'informations de qualité de canal, de telle sorte qu'on réduit le temps de déperdition de rétroaction lorsqu'un terminal renvoie les informations de qualité à une station de base, et qu'on améliore la précision de rétroaction. Le procédé comprend: la division des informations directes de canal obtenues par un terminal mobile en informations grossières de canal à variation lente et en informations fines de canal à variation rapide ; la valeur de rétroaction des informations grossières de canal indique une bande passante entière et des sous-bandes, la période de rétroaction de la sous-bande étant un multiple de celle des sous-bandes ; la dimension de rétroaction des informations fines de canal indique des sous-bandes ou une bande passante entière, la période de rétroaction étant un multiple de celle des sous-bandes. Les informations de rétroaction de la présente invention peuvent mieux tracer les variations du canal, et facilitent la réduction du temps de déperdition de rétroaction.
(ZH) 本发明公开了一种信道质量信息的发送装置及方法,以减小终端向基站反馈质量信息时的反馈开销,提高反馈精度。其中该方法包括:将移动终端获得的直接信道信息分为慢变的粗粒度信道信息和快变的细粒度信道信息;所述粗粒度信道信息的反馈粒度为全带宽和子带,所述子带的反馈周期为子帧的倍数;所述细粒度信道信息的反馈粒度为子带或全带宽,反馈周期为子帧的倍数。本发明反馈信息能更好地追踪信道的变化,且有利于减小反馈开销。
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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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, 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, 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 (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)