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1. (WO2018142747) USER TERMINAL AND WIRELESS COMMUNICATION METHOD
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Pub. No.: WO/2018/142747 International Application No.: PCT/JP2017/043313
Publication Date: 09.08.2018 International Filing Date: 01.12.2017
IPC:
H04W 72/04 (2009.01) ,H04B 7/0413 (2017.01) ,H04B 7/06 (2006.01) ,H04L 27/26 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
72
Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04
Wireless resource allocation
[IPC code unknown for H04B 7/0413]
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
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:
株式会社NTTドコモ NTT DOCOMO, INC. [JP/JP]; 東京都千代田区永田町2丁目11番1号 11-1, Nagatacho 2-chome, Chiyoda-ku, Tokyo 1006150, JP
Inventors:
齊藤 敬佑 SAITO, Keisuke; JP
武田 和晃 TAKEDA, Kazuaki; JP
永田 聡 NAGATA, Satoshi; JP
Agent:
鷲田 公一 WASHIDA, Kimihito; JP
Priority Data:
2017-01911903.02.2017JP
Title (EN) USER TERMINAL AND WIRELESS COMMUNICATION METHOD
(FR) TERMINAL UTILISATEUR ET PROCÉDÉ DE COMMUNICATION SANS FIL
(JA) ユーザ端末及び無線通信方法
Abstract:
(EN) Provided is a user terminal equipped with: a receiving unit that receives a downlink signal including a demodulation reference signal; a signal separation unit that separates the demodulation reference signal from the downlink signal on the basis of an extension pattern obtained by applying a set extension method to extend a basic pattern; and a channel estimation unit that calculates a channel estimation value using the demodulation reference signal. The basic pattern indicates resource elements to which an 8-layer demodulation reference signal is mapped, and the extension pattern indicates resource elements to which a 16-layer demodulation reference signal is mapped.
(FR) L'invention concerne un terminal utilisateur comprenant : une unité de réception qui reçoit un signal de liaison descendante comprenant un signal de référence de démodulation ; une unité de séparation de signal qui sépare le signal de référence de démodulation du signal de liaison descendante d'après un motif d'extension obtenu en appliquant un procédé d'extension défini pour étendre un motif de base ; et une unité d'estimation de canal qui calcule une valeur d'estimation de canal à l'aide du signal de référence de démodulation. Le motif de base indique les éléments de ressource avec lesquels est mappé un signal de référence de démodulation à 8 couches et le motif d'extension indique les éléments de ressource avec lesquels est mappé un signal de référence de démodulation à 16 couches.
(JA) ユーザ端末は、復調用参照信号を含む下りリンク信号を受信する受信部と、設定された拡張方法を適用して基本パターンを拡張した拡張パターンに基づいて、下りリンク信号から復調用参照信号を分離する信号分離部と、復調用参照信号を用いてチャネル推定値を算出するチャネル推定部と、を具備する。基本パターンは、8レイヤの復調用参照信号がマッピングされるリソース要素を示し、拡張パターンは、16レイヤの復調用参照信号がマッピングされるリソース要素を示す。
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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)