METHOD AND APPARATUS FOR SYSTEM ACCESS IN SYSTEM USING BEAMFORMING

    公开(公告)号:EP3611844A1

    公开(公告)日:2020-02-19

    申请号:EP19201993.3

    申请日:2013-08-19

    IPC分类号: H04B7/02 H04B7/06

    摘要: The present invention relates to an method and an apparatus for upward access, and the method for upward access according to one embodiment of the present invention can comprise the steps of: receiving, from a base station, a synchronization QO channel, a broadcasting control channel and a secondary reference signal; selecting a transmission beam which transmits an upward access signal by using received results from at least one of the synchronization channel, the broadcasting control channel and the QO secondary reference signal; transmitting the upward access signal by using the selected transmission beam; and receiving, from the base station, an access response and initial set-up information of the control channel as a response for the upward access signal. According to the one embodiment of the present invention, the upward access steps can efficiently perform a beam selection.

    HYBRID ZERO-FORCING BEAMFORMING METHOD AND APPARATUS
    8.
    发明公开
    HYBRID ZERO-FORCING BEAMFORMING METHOD AND APPARATUS 审中-公开
    HYBRID-NULLZWANG-STRAHLENBÜNDELUNGSVERFAHRENUND -VORRICHTUNG

    公开(公告)号:EP2894796A1

    公开(公告)日:2015-07-15

    申请号:EP14200343.3

    申请日:2014-12-24

    IPC分类号: H04B7/04 H04B7/06

    摘要: Communication methods of a base station and a terminal are provided. The communication method of the base station includes receiving feedback information including ray gain information from a terminal, configuring a Radio Frequency (RF) precoder to minimize a Frobenius norm of a total transmit precoder of the base station, and configuring a baseband precoder based on Zero-Forcing (ZF). The communication method of the terminal includes receiving a pilot signal from a base station; estimating a channel of the terminal using the pilot signal; configuring ray gain information based on information of the estimated channel; and feeding back a codebook index corresponding to the ray gain information to the base station.

    摘要翻译: 提供基站和终端的通信方法。 基站的通信方法包括从终端接收包括射线增益信息的反馈信息,配置射频(RF)预编码器以使基站的总发射预编码器的Frobenius范数最小化,并且基于零配置基带预编码器 - 强制(ZF)。 终端的通信方法包括从基站接收导频信号; 使用导频信号估计终端的信道; 基于所估计的信道的信息来配置射线增益信息; 并将与所述射线增益信息对应的码本索引反馈给所述基站。