利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.011 秒)

    TRANSMISSION/RECEPTION APPARATUS AND METHOD FOR CHANNEL ESTIMATION USING PACKET DATA CONTROL CHANNEL IN FDMA COMMUNICATION AND SYSTEM USING THE SAME
    2.
    发明公开
    TRANSMISSION/RECEPTION APPARATUS AND METHOD FOR CHANNEL ESTIMATION USING PACKET DATA CONTROL CHANNEL IN FDMA COMMUNICATION AND SYSTEM USING THE SAME 审中-公开
    发送/接收装置并使用FDMA通信体系和秩序分组数据控制信道进行信道估计方法

    公开(公告)号：EP1935125A1

    公开(公告)日：2008-06-25

    申请号：EP06799183.6

    申请日：2006-10-12

    申请人： Samsung Electronics Co., Ltd.

    发明人： KWON, Hwan-Joon ,  HAN, Jin-Kyu ,  CHO, Yun-Ok ,  LEE, Ju-Ho

    IPC分类号： H04J11/00

    CPC分类号： H04L25/0226 ,  H04L5/023 ,  H04L27/261 ,  H04L27/2647 ,  H04W52/325 ,  H04W52/54

    摘要： A transmission/reception apparatus and method are provided for channel estimation in a mobile communication system for transmitting packet data based on FDMA, and include a transmitter for transmitting signals through a pilot channel and a control channel, and a receiver for receiving the signals of the pilot channel and the control channel and estimating a channel for demodulation of a data channel using the signal of the pilot channel and information about transmission power used when the control channel is transmitted. The receiver includes a pilot channel receiver, a control channel receiver, a control channel signal reproducer, and a channel estimator for performing channel estimation using the signals received through the pilot channel, the control channel, the signal transmitted through the control channel by the transmitter, and the information about transmission power used when the control channel is transmitted by the transmitter.

    METHOD, APPARATUS, AND SYSTEM FOR TRANSMITTING AND RECEIVING INFORMATION OF AN UNCODED CHANNEL IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
    3.
    发明公开
    METHOD, APPARATUS, AND SYSTEM FOR TRANSMITTING AND RECEIVING INFORMATION OF AN UNCODED CHANNEL IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM 审中-公开

    公开(公告)号：EP3474481A1

    公开(公告)日：2019-04-24

    申请号：EP18205191.2

    申请日：2006-05-04

    申请人： Samsung Electronics Co., Ltd.

    发明人： KWON, Hwan-Joon ,  LEE, Ju-Ho ,  CHO, Joon-Young ,  HAN, Jin-Kyu ,  KIM, Dong-Hee ,  CHO, Yun-Ok

    IPC分类号： H04L5/00 ,  H04J11/00

    摘要： A method apparatus and system for efficiently transmitting and receiving channels are provided in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A multiplexing scheme differs according to a channel when a transmitter transmits a packet data channel, a common control channel and a control channel designated for a particular user. Uncoded 1-bit information is broadly dispersed in frequency and time domains using multiplexing technology for maximizing diversity gain in a channel for transmitting information of at least one bit to a particular user like an acknowledgement (ACK) channel. The transmitter converts a sequence obtained by multiplexing multiple bits to be transmitted to a plurality of users to parallel signals, and broadly disperses the parallel signals in the time and frequency domains. When the uncoded 1-bit information is transmitted, reception reliability is improved because channel coding and transmission are efficiently performed using a small amount of resources.