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1. WO2018082575 - METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL SIGNAL

Publication Number WO/2018/082575
Publication Date 11.05.2018
International Application No. PCT/CN2017/108970
International Filing Date 01.11.2017
IPC
H04L 5/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
CPC
H04B 7/0617
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
H04B 7/0695
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0686Hybrid systems, i.e. switching and simultaneous transmission
0695using beam selection
H04B 7/088
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
0868Hybrid systems, i.e. switching and combining
088using beam selection
H04J 11/0069
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
11Orthogonal multiplex systems, ; e.g. using WALSH codes
0069Cell search, i.e. determining cell identity [cell-ID]
H04L 27/2655
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
H04L 5/0007
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 李赛楠 LI, Sainan
  • 黄煌 HUANG, Huang
  • 张希 ZHANG, Xi
Priority Data
201610974038.803.11.2016CN
201610974445.903.11.2016CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL SIGNAL
(FR) PROCÉDÉ ET APPAREIL POUR TRANSMETTRE UN SIGNAL DE COMMANDE DE LIAISON DESCENDANTE
(ZH) 一种下行控制信号的传输方法及装置
Abstract
(EN) Provided by the present invention are a method and apparatus for transmitting a downlink control signal, the method comprising: a base station sending one or more radio frames, the one or more radio frames comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols carrying a synchronization signal, each OFDM symbol carrying a synchronization signal being sent by means of one or more downlink beams of the base station, wherein the OFDM symbols carrying a synchronization signal further carry a downlink control signal. Since the downlink control signal is arranged in an OFDM symbol carrying a synchronization signal, signaling overhead is thereby reduced.
(FR) La présente invention concerne un procédé et un appareil permettant de transmettre un signal de commande de liaison descendante, le procédé consiste à : une station de base envoie une ou plusieurs trames radio, la ou les trames radio comprennent une pluralité de symboles de multiplexage par répartition orthogonale de la fréquence (OFDM) portant un signal de synchronisation, chaque symbole OFDM porte un signal de synchronisation qui est envoyé au moyen d'un ou plusieurs faisceaux de liaison descendante de la station de base, les symboles OFDM portant un signal de synchronisation portant en outre un signal de commande de liaison descendante. Comme le signal de commande de liaison descendante est agencé dans un symbole OFDM transportant un signal de synchronisation, le surdébit de signalisation est ainsi réduit.
(ZH) 本发明提供一种行控制信号的传输方法及装置,该方法包括基站发送一个或多个无线帧,所述一个或多个无线帧中包括多个携带同步信号的OFDM符号,每个携带同步信号的OFDM符号通过所述基站的一个或多个下行波束进行发送,其中,携带同步信号的OFDM符号中还携带有下行控制信号;由于下行控制信号置于携带有同步信号的OFDM符号中,降低了信令开销。
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