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    • 98. 发明申请
    • CHANNEL STATE INFORMATION FEEDBACK
    • 频道状态信息反馈
    • US20120314611A1
    • 2012-12-13
    • US13580732
    • 2011-02-14
    • Matthew P. J. BakerFederico Boccardi
    • Matthew P. J. BakerFederico Boccardi
    • H04W24/00
    • H04L1/0026H04L1/0027H04L1/0029H04L1/003
    • An apparatus and method for feeding back channel state information are disclosed. The method of providing channel state information for a wireless communications channel provided between a first network node having at least one transmission antenna and a second network node having at least one reception antenna comprises the steps of: estimating a current value of at least a first type of channel state information for at least one sub-channel within the channel from signals received by the at least one reception antenna over the channel from the at least one transmission antenna; determining whether the current value of the first type of channel state information varies from previously-transmitted value for the first type of channel state information by at least a predetermined amount; and if so, transmitting an indicator indicative of the current value for the first type of channel state information to the first network node.
    • 公开了一种用于反馈信道状态信息的装置和方法。 为具有至少一个发送天线的第一网络节点和具有至少一个接收天线的第二网络节点之间提供的无线通信信道提供信道状态信息的方法包括以下步骤:估计至少第一类型的当前值 用于通过所述至少一个发射天线在所述信道上由所述至少一个接收天线接收的信号中的所述信道内的至少一个子信道的信道状态信息; 确定所述第一类型的信道状态信息的当前值是否与所述第一类型信道状态信息的先前传输值相差至少预定量; 如果是,则向第一网络节点发送指示第一类型的信道状态信息的当前值的指示符。