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1. (WO2019043805) RETRANSMISSION CONTROL METHOD, WIRELESS TERMINAL, AND WIRELESS BASE STATION
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Pub. No.: WO/2019/043805 International Application No.: PCT/JP2017/031049
Publication Date: 07.03.2019 International Filing Date: 30.08.2017
IPC:
H04W 28/04 (2009.01) ,H04W 8/22 (2009.01) ,H04W 28/18 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
28
Network traffic or resource management
02
Traffic management, e.g. flow control or congestion control
04
Error control
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
8
Network data management
22
Processing or transfer of terminal data, e.g. status or physical capabilities
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
28
Network traffic or resource management
16
Central resource management; Negotiation of resources, e.g. negotiating bandwidth or QoS [Quality of Service]
18
Negotiating wireless communication parameters
Applicants:
富士通株式会社 FUJITSU LIMITED [JP/JP]; 神奈川県川崎市中原区上小田中4丁目1番1号 1-1, Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-shi, Kanagawa 2118588, JP
Inventors:
江崎 孝斗 EZAKI, Takato; JP
河▲崎▼ 義博 KAWASAKI, Yoshihiro; JP
Agent:
向山 直樹 MUKOUYAMA, Naoki; JP
Priority Data:
Title (EN) RETRANSMISSION CONTROL METHOD, WIRELESS TERMINAL, AND WIRELESS BASE STATION
(FR) PROCÉDÉ DE COMMANDE DE RETRANSMISSION, TERMINAL SANS FIL, ET STATION DE BASE SANS FIL
(JA) 再送制御方法、無線端末、無線基地局
Abstract:
(EN) A retransmission control method according to the present disclosure is a method for controlling the retransmission of downlink data transmitted from a wireless base station to a wireless terminal, wherein: the wireless terminal transmits information pertaining to the decoding performance of the wireless terminal to the wireless base station, receives the downlink data from the wireless base station, and, when an error is detected in the downlink data, transmits a request for retransmission of the downlink data to the wireless base station; when the retransmission request is received, the wireless base station transmits a retransmission setting based on the information pertaining to the decoding performance of the wireless terminal to the wireless terminal via a physical downlink control channel (PDCCH) and retransmits the downlink data indicated by the retransmission requested in accordance with the transmission setting; and the wireless terminal decodes the downlink data in accordance with the retransmission setting.
(FR) Un procédé de commande de retransmission selon la présente invention est un procédé permettant de commander la retransmission de données de liaison descendante transmises d'une station de base sans fil à un terminal sans fil. Le terminal sans fil transmet des informations concernant les performances de décodage du terminal sans fil à la station de base sans fil, reçoit les données de liaison descendante en provenance de la station de base sans fil, et, lorsqu'une erreur est détectée dans les données de liaison descendante, transmet une demande de retransmission des données de liaison descendante à la station de base sans fil ; lorsque la demande de retransmission est reçue, la station de base sans fil transmet un réglage de retransmission sur la base des informations concernant les performances de décodage du terminal sans fil au terminal sans fil par l'intermédiaire d'un canal de commande de liaison descendante physique (PDCCH) et retransmet les données de liaison descendante indiquées par la retransmission demandée conformément au réglage de transmission ; et le terminal sans fil décode les données de liaison descendante conformément au réglage de retransmission.
(JA) 本開示の再送制御方法は、無線基地局から無線端末へ送信されるダウンリンクデータの再送制御方法であって、前記無線端末が、前記無線端末の復号性能に関する情報を、前記無線基地局へ送信し、前記無線基地局からの前記ダウンリンクデータを受信し、前記ダウンリンクデータに誤りが検出された場合、前記ダウンリンクデータの再送要求を、前記無線基地局へ送信し、前記無線基地局が、前記再送要求を受信した場合、前記無線端末の復号性能に関する情報に基づく再送設定を、PDCCH(Physical Downlink Control CHannel)で、前記無線端末に送信し、前記再送設定に従って、前記再送要求に示される前記ダウンリンクデータを再送し、前記無線端末が、前記再送設定に従って、前記ダウンリンクデータを復号する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)