Method and apparatus for transmitting/receiving a reference signal in a wireless communication system
    3.
    发明授权
    Method and apparatus for transmitting/receiving a reference signal in a wireless communication system 有权
    用于在无线通信系统中发送/接收参考信号的方法和装置

    公开(公告)号:US08355367B2

    公开(公告)日:2013-01-15

    申请号:US12862389

    申请日:2010-08-24

    Abstract: A method and apparatus for transmitting/receiving reference signals in Long Term Evolution (LTE) and LTE-Advanced (LTE-A) systems includes determining whether a dedicated reference signal is detected in a current subframe; estimating, if a dedicated reference signal is detected in the current subframe, a data channel using the dedicated reference signal to receive data; and estimating, if no dedicated reference signal is detected in the current subframe, a data channel using a common reference signal detected in the current subframe to receive data. The transmission scheme uses a DeModulation Reference Signal (DM-RS) for channel response estimation. To secure backward compatibility of the LTE-A system, a Common Reference Signal is transmitted in normal subframes.

    Abstract translation: 一种用于在长期演进(LTE)和LTE高级(LTE-A)系统中发送/接收参考信号的方法和装置,包括确定在当前子帧中是否检测到专用参考信号; 如果在当前子帧中检测到专用参考信号,则估计使用专用参考信号接收数据的数据信道; 以及如果在当前子帧中没有检测到专用参考信号,则估计使用当前子帧中检测到的公共参考信号的数据信道来接收数据。 传输方案使用解调参考信号(DM-RS)进行信道响应估计。 为了确保LTE-A系统的向后兼容性,在普通子帧中传送公共参考信号。

    Apparatus and method for sending and receiving channel state information in communication system

    公开(公告)号:US09628218B2

    公开(公告)日:2017-04-18

    申请号:US13582201

    申请日:2011-03-25

    CPC classification number: H04L1/0026 H04L1/0029

    Abstract: The present invention relates to a channel status information transmission/reception method and apparatus in a wireless communication system in which the transmission apparatus generates channel status informations for at least two transmission schemes by combining rank informations corresponding to the transmission schemes into combined rank information through analyzing an uplink channel, and transmits the channel status informations for the respective transmission schemes on uplink channel, the channel status information for one of the transmission schemes containing the combined rank information; the reception apparatus receives the channel status informations corresponding to at least two transmission schemes, the channel status information for one of the transmission schemes including combined rank information for the transmission schemes, schedules downlink channel according to the channel status information, and transmits signals on the downlink channel. According to the present invention, the transmission apparatus combines rank informations of a plurality of transmission schemes and feeds back the combined rank information so as to reduce overhead at a reception apparatus.

    Method and apparatus for transmitting and receiving reference signal in wireless communication system
    7.
    发明授权
    Method and apparatus for transmitting and receiving reference signal in wireless communication system 有权
    用于在无线通信系统中发送和接收参考信号的方法和装置

    公开(公告)号:US08948076B2

    公开(公告)日:2015-02-03

    申请号:US13210078

    申请日:2011-08-15

    CPC classification number: H04L5/0048 H04W28/00 H04W48/12 H04W52/54

    Abstract: Methods and apparatus are provided for transmitting processing reference signals in a mobile communication system. A base station determines a reference signal pattern comprising at least one resource element, generates a bitmap indicator indicating whether zero transmission power is assigned to the at least one resource element of the reference signal pattern, and transmits the reference signal pattern and the bitmap indicator to a terminal. The terminal receives the reference signal pattern and the bitmap indicator, and processes a reference signal extracted according to the reference signal pattern and the bitmap indicator.

    Abstract translation: 提供了用于在移动通信系统中发送处理参考信号的方法和装置。 基站确定包括至少一个资源元素的参考信号模式,生成指示零发送功率是否被分配给参考信号模式的至少一个资源元素的位图指示符,并将参考信号模式和位图指示符发送到 一个终端。 终端接收参考信号模式和位图指示符,并处理根据参考信号模式和位图指示符提取的参考信号。

    APPARATUS AND METHOD FOR SENDING AND RECEIVING CHANNEL STATE INFORMATION IN COMMUNICATION SYSTEM
    8.
    发明申请
    APPARATUS AND METHOD FOR SENDING AND RECEIVING CHANNEL STATE INFORMATION IN COMMUNICATION SYSTEM 有权
    用于在通信系统中发送和接收信道状态信息的装置和方法

    公开(公告)号:US20120320832A1

    公开(公告)日:2012-12-20

    申请号:US13582201

    申请日:2011-03-25

    CPC classification number: H04L1/0026 H04L1/0029

    Abstract: The present invention relates to a channel status information transmission/reception method and apparatus in a wireless communication system in which the transmission apparatus generates channel status informations for at least two transmission schemes by combining rank informations corresponding to the transmission schemes into combined rank information through analyzing an uplink channel, and transmits the channel status informations for the respective transmission schemes on up link channel, the channel status information for one of the transmission schemes containing the combined rank information; the reception apparatus receives the channel status informations corresponding to at least two transmission schemes, the channel status information for one of the transmission schemes including combined rank information for the transmission schemes, schedules downlink channel according to the channel status information, and transmits signals on the downlink channel. According to the present invention, the transmission apparatus combines rank informations of a plurality of transmission schemes and feeds back the combined rank information so as to reduce overhead at a reception apparatus.

    Abstract translation: 本发明涉及一种无线通信系统中的信道状态信息发送/接收方法和装置,其中,传输装置通过分析组合的等级信息,通过将对应于传输方案的等级信息组合到等级信息中来生成至少两个传输方式的信道状态信息 上行链路信道,并且在上行链路信道上发送用于各个传输方案的信道状态信息,用于包含组合等级信息的传输方案之一的信道状态信息; 接收装置接收与至少两个传输方案对应的信道状态信息,包括用于传输方案的组合等级信息的传输方案之一的信道状态信息,根据信道状态信息调度下行链路信道,并且在 下行通道。 根据本发明,发送装置组合多个发送方式的秩信息,反馈组合等级信息,以减少接收装置的开销。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    10.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中发送和接收参考信号的方法和装置

    公开(公告)号:US20120039282A1

    公开(公告)日:2012-02-16

    申请号:US13210078

    申请日:2011-08-15

    CPC classification number: H04L5/0048 H04W28/00 H04W48/12 H04W52/54

    Abstract: Methods and apparatus are provided for transmitting processing reference signals in a mobile communication system. A base station determines a reference signal pattern comprising at least one resource element, generates a bitmap indicator indicating whether zero transmission power is assigned to the at least one resource element of the reference signal pattern, and transmits the reference signal pattern and the bitmap indicator to a terminal. The terminal receives the reference signal pattern and the bitmap indicator, and processes a reference signal extracted according to the reference signal pattern and the bitmap indicator.

    Abstract translation: 提供了用于在移动通信系统中发送处理参考信号的方法和装置。 基站确定包括至少一个资源元素的参考信号模式,生成指示零发送功率是否被分配给参考信号模式的至少一个资源元素的位图指示符,并将参考信号模式和位图指示符发送到 一个终端。 终端接收参考信号模式和位图指示符,并处理根据参考信号模式和位图指示符提取的参考信号。

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