FEEDBACK METHOD AND APPARATUS FOR COOPERATIVE COMMUNICATION SYSTEM

    公开(公告)号:EP3926842A1

    公开(公告)日:2021-12-22

    申请号:EP21177837.8

    申请日:2012-06-18

    IPC分类号: H04B7/02 H04B7/024

    摘要: A method for transmitting channel information in a communication system is provided. The method comprises transmitting information representative of at least one reference signal for interference measurement. Further, transmitting physical downlink control information including an indicator for triggering channel information associated with one or more reference signal for interference measurement. Further, receiving channel information associated with the one or more reference signal for interference measurement based on one or more interference measurement of the one or more reference signal for interference measurement on a physical uplink shared channel. Further, transmitting information representative of at least one reference signal for channel measurement.

    MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM USING CODEBOOK CORRESPONDING TO EACH REPORTING MODE

    公开(公告)号:EP3920427A2

    公开(公告)日:2021-12-08

    申请号:EP21188034.9

    申请日:2011-05-02

    IPC分类号: H04B7/04

    摘要: A communication method of a receiver in a wireless communication system, the communication method comprising obtaining a rank indicator; obtaining a first precoding matrix indicator based on the rank indicator; obtaining a second precoding matrix indicator associated with the first precoding matrix indicator; when the rank indicator is 1, transmitting the rank indicator, and transmitting the first precoding matrix indicator obtained based on a subset of a first codebook, the second precoding matrix indicator and a wideband channel quality index (CQI); and when the rank indicator is 2, transmitting the rank indicator, and transmitting the first precoding matrix indicator obtained based on a subset {0, 2, 4, 6, 8, 10, 12, 14} of the first codebook, the second precoding matrix indicator and a wideband channel quality index(CQI), wherein when the rank indicator is 1 or 2, the first precoding matrix indicator is 3 bits, and the second precoding matrix indicator is 1 bit.

    METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM
    5.
    发明授权
    METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM 有权
    用于测量无线通信系统中干扰的方法和设备

    公开(公告)号:EP2828992B1

    公开(公告)日:2018-03-14

    申请号:EP13764320.1

    申请日:2013-03-22

    摘要: An interference measurement method of a terminal is provided for facilitating downlink transmission in the mobile communication system based on Distributed Antenna System (DAS) in which multiple antennas controlled by a base station are distributed within the service area of the base station. The interference measurement method includes receiving channel measurement information and interference measurement information from a base station, receiving channel state information reference signals, calculating, when the received channel state information reference signal is for channel measurement, a received signal energy based on the channel measurement information and, when the received channel state information reference signal is for interference measurement, an interference based on the interference measurement information, generating channel quality information based on the received signal energy and the interference, and transmitting the channel quality information to the base station.

    METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM
    6.
    发明公开
    METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM 有权
    用于测量无线通信系统中干扰的方法和设备

    公开(公告)号:EP2828992A1

    公开(公告)日:2015-01-28

    申请号:EP13764320.1

    申请日:2013-03-22

    IPC分类号: H04B17/00 H04B7/26

    摘要: An interference measurement method of a terminal is provided for facilitating downlink transmission in the mobile communication system based on Distributed Antenna System (DAS) in which multiple antennas controlled by a base station are distributed within the service area of the base station. The interference measurement method includes receiving channel measurement information and interference measurement information from a base station, receiving channel state information reference signals, calculating, when the received channel state information reference signal is for channel measurement, a received signal energy based on the channel measurement information and, when the received channel state information reference signal is for interference measurement, an interference based on the interference measurement information, generating channel quality information based on the received signal energy and the interference, and transmitting the channel quality information to the base station.

    摘要翻译: 提供了一种终端的干扰测量方法,用于基于分布式天线系统(DAS)的移动通信系统中的下行链路传输,其中基站控制的多个天线分布在基站的服务区域内。 干扰测量方法包括:从基站接收信道测量信息和干扰测量信息;接收信道状态信息参考信号;当接收到的信道状态信息参考信号用于信道测量时,基于信道测量信息计算接收信号能量 并且当所接收的信道状态信息参考信号用于干扰测量时,基于干扰测量信息产生干扰,基于接收到的信号能量和干扰产生信道质量信息,并且向基站发送信道质量信息。

    MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM USING CODEBOOK CORRESPONDING TO EACH REPORTING MODE

    公开(公告)号:EP3920427A3

    公开(公告)日:2022-01-26

    申请号:EP21188034.9

    申请日:2011-05-02

    IPC分类号: H04B7/04

    摘要: A communication method of a receiver in a wireless communication system, the communication method comprising obtaining a rank indicator; obtaining a first precoding matrix indicator based on the rank indicator; obtaining a second precoding matrix indicator associated with the first precoding matrix indicator; when the rank indicator is 1, transmitting the rank indicator, and transmitting the first precoding matrix indicator obtained based on a subset of a first codebook, the second precoding matrix indicator and a wideband channel quality index (CQI); and when the rank indicator is 2, transmitting the rank indicator, and transmitting the first precoding matrix indicator obtained based on a subset {0, 2, 4, 6, 8, 10, 12, 14} of the first codebook, the second precoding matrix indicator and a wideband channel quality index(CQI), wherein when the rank indicator is 1 or 2, the first precoding matrix indicator is 3 bits, and the second precoding matrix indicator is 1 bit.