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1. (WO2017134979) USER EQUIPMENT AND A SYNCHRONIZATION SIGNAL TRANSMISSION METHOD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134979 International Application No.: PCT/JP2017/000217
Publication Date: 10.08.2017 International Filing Date: 06.01.2017
IPC:
H04W 56/00 (2009.01) ,H04W 52/32 (2009.01) ,H04W 72/02 (2009.01) ,H04W 72/10 (2009.01) ,H04W 92/18 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
56
Synchronisation arrangements
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
32
TPC of broadcast or control channels
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
02
Selection of wireless resources by user or terminal
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
10
based on priority criteria
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
92
Interfaces specially adapted for wireless communication networks
16
Interfaces between hierarchically similar devices
18
between terminal devices
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:
安川 真平 YASUKAWA, Shimpei; JP
永田 聡 NAGATA, Satoshi; JP
ジョウ チュン ZHAO, Qun; CN
リュー リュー LIU, Liu; CN
リ アンシン LI, Anxin; CN
ジャン ホイリン JIANG, Huiling; CN
Agent:
伊東 忠重 ITOH, Tadashige; JP
伊東 忠彦 ITOH, Tadahiko; JP
Priority Data:
2016-02032604.02.2016JP
Title (EN) USER EQUIPMENT AND A SYNCHRONIZATION SIGNAL TRANSMISSION METHOD
(FR) ÉQUIPEMENT UTILISATEUR ET PROCÉDÉ D’ÉMISSION DE SIGNAL DE SYNCHRONISATION
(JA) ユーザ装置、同期信号送信方法
Abstract:
(EN) A user equipment in a radio communication system supporting D2D communication is provided which has a receiving unit which receives a prescribed synchronization signal, a synchronization processing unit which performs processing for synchronizing with the prescribed synchronization signal, and a transmission unit which, if the receiving unit has received a synchronization signal transmitted from another user equipment and if the received power of the synchronization signal transmitted from the other user equipment is less than a prescribed threshold value, transmits a synchronization signal in the same subframe as that of the synchronization signal transmitted from the other user equipment, wherein the transmission unit stops transmission of the synchronization signal during a prescribed period, and the receiving unit measures the received power of the synchronization signal transmitted from the other user equipment during the aforementioned prescribed period.
(FR) L’invention concerne un équipement utilisateur dans un système de radiocommunication prenant en charge une communication de dispositif à dispositif (D2D), qui a une unité de réception qui reçoit un signal de synchronisation prescrit, une unité de traitement de synchronisation qui réalise un traitement pour une synchronisation avec le signal de synchronisation prescrit, et une unité d’émission qui, si l’unité de réception a reçu un signal de synchronisation émis à partir d’un autre équipement utilisateur et si la puissance reçue du signal de synchronisation émis à partir de l’autre équipement utilisateur est inférieure à une valeur de seuil prescrite, émet un signal de synchronisation dans la même sous-trame que celle du signal de synchronisation émis à partir de l’autre équipement utilisateur, l’unité d’émission arrêtant l’émission du signal de synchronisation durant une période prescrite, et l’unité de réception mesurant la puissance reçue du signal de synchronisation émis à partir de l’autre équipement utilisateur durant la période prescrite mentionnée ci-dessus.
(JA) D2D通信をサポートする無線通信システムにおけるユーザ装置であって、所定の同期信号を受信する受信部と、前記所定の同期信号と同期する処理を行う同期処理部と、前記受信部において他のユーザ装置から送信された同期信号を受信した場合で、かつ、前記他のユーザ装置から送信された同期信号の受信電力が所定の閾値未満の場合に、前記他のユーザ装置から送信された同期信号と同一のサブフレームで同期信号を送信する送信部と、を有し、前記送信部は、所定の期間において同期信号の送信を停止し、前記受信部は、前記所定の期間において前記他のユーザ装置から送信された同期信号の受信電力を測定する、ユーザ装置を提供する。
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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, 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 Organization (AM, AZ, BY, KG, KZ, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
CN108476484