APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING UPLINK PILOT IN FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    21.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING UPLINK PILOT IN FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 有权
    频分多址接入系统发送/接收上行导频的装置及方法

    公开(公告)号:US20100149962A1

    公开(公告)日:2010-06-17

    申请号:US11917450

    申请日:2006-06-21

    IPC分类号: H04J11/00 H04B7/208

    CPC分类号: H04L5/06 H04L25/0232

    摘要: Method and apparatus for transmitting/receiving an uplink pilot used for channel estimation and measurement of an uplink in an FDMA system. Pilot symbols are transmitted with different frequency mapping patterns in first and second pilot symbol intervals of one time slot interval including data symbol intervals and the inconsecutive first and second pilot symbol intervals which have a shorter length than the data symbol intervals. As a result, interpolation of a frequency domain during channel estimation is not necessary, and can correctly obtain channel-estimated values of a frequency at which data is transmitted, in a fast time-varying channel environment.

    摘要翻译: 用于发送/接收用于FDMA系统中的上行链路的信道估计和测量的上行链路导频的方法和装置。 在包括数据符号间隔的一个时隙间隔的第一和第二导频符号间隔以及具有比数据符号间隔更短的长度的不连续的第一和第二导频符号间隔中,以不同的频率映射模式发送导频符号。 结果,在频道估计期间的频域的插值不是必需的,并且可以在快速时变信道环境中正确地获得数据被发送的频率的信道估计值。

    Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system
    25.
    发明授权
    Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system 有权
    用于在正交频分复用系统中发送和接收未编码信道的信息的方法,装置和系统

    公开(公告)号:US08520499B2

    公开(公告)日:2013-08-27

    申请号:US11417217

    申请日:2006-05-04

    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.

    摘要翻译: 在基于正交频分复用(OFDM)的无线通信系统中提供用于有效发送和接收信道的方法,装置和系统。 当发射机发送分组数据信道,公共控制信道和为特定用户指定的控制信道时,复用方案根据信道而不同。 使用多路复用技术将未编码的1比特信息广泛地分散在频域和时域中,用于使通道中的分集增益最大化,以将诸如确认(ACK)信道的至少一个比特的信息发送给特定用户。 发送器将通过将要发送的多个比特复用到多个用户获得的序列转换为并行信号,并且在时域和频域中广泛地分散并行信号。 当发送未编码的1比特信息时,由于使用少量资源有效地进行信道编码和发送,所以提高了接收可靠性。

    Apparatus and method for transmitting/receiving uplink pilot in frequency division multiple access system
    30.
    发明授权
    Apparatus and method for transmitting/receiving uplink pilot in frequency division multiple access system 有权
    在频分多址系统中发送/接收上行导频的装置和方法

    公开(公告)号:US08325594B2

    公开(公告)日:2012-12-04

    申请号:US11917450

    申请日:2006-06-21

    IPC分类号: H04J11/00

    CPC分类号: H04L5/06 H04L25/0232

    摘要: Method and apparatus for transmitting/receiving an uplink pilot used for channel estimation and measurement of an uplink in an FDMA system. Pilot symbols are transmitted with different frequency mapping patterns in first and second pilot symbol intervals of one time slot interval including data symbol intervals and the inconsecutive first and second pilot symbol intervals which have a shorter length than the data symbol intervals. As a result, interpolation of a frequency domain during channel estimation is not necessary, and can correctly obtain channel-estimated values of a frequency at which data is transmitted, in a fast time-varying channel environment.

    摘要翻译: 用于发送/接收用于FDMA系统中的上行链路的信道估计和测量的上行链路导频的方法和装置。 在包括数据符号间隔的一个时隙间隔的第一和第二导频符号间隔以及具有比数据符号间隔更短的长度的不连续的第一和第二导频符号间隔中,以不同的频率映射模式发送导频符号。 结果,在频道估计期间的频域的插值不是必需的,并且可以在快速时变信道环境中正确地获得数据被发送的频率的信道估计值。