会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明申请
    • PROVIDING CQI FEEDBACK TO A TRANSMITTER STATION IN A CLOSED-LOOP MIMO SYSTEM
    • 向闭环MIMO系统中的发射机站提供CQI反馈
    • US20070253386A1
    • 2007-11-01
    • US11617549
    • 2006-12-28
    • Qinghua LiGuangjie LiXintian E. LinMinnie Ho
    • Qinghua LiGuangjie LiXintian E. LinMinnie Ho
    • H04Q7/24
    • H04L1/0026H04B7/0632H04L1/0003H04L1/0009H04L1/0025H04L1/0029
    • Methods and apparatuses for reducing an amount of bandwidth required for feedback to a transmitter station in a closed-loop multiple-input multiple-output (MIMO) system are described herein. The methods may include initially measuring at a receiver station channel qualities associated with receiving signals from a transmitter station for a first and a second spatial channel, the transmitter and receiver stations employing a closed-loop MIMO system. The receiver station may then determine a first and a second channel quality indicator (CQI) based on the measured channel qualities and may then transmit to the transmitter station the first and the second CQI to directly and indirectly identify a first and a second modulation coding scheme (MCS) entry among a plurality of ordered MCS entries, respectively. The second MCS entry being one of a selected subset of lower ordered MCS entries relative to the first MCS entry. The transmitter station may selectively use the first and the second identified MCS to transmit signals to the receiver station over the first and the second spatial channel, respectively.
    • 这里描述了用于减少在闭环多输入多输出(MIMO)系统中向发射机站反馈所需的带宽量的方法和装置。 这些方法可以包括最初在接收机站处测量与从发射机站接收针对第一和第二空间信道的信号相关联的信道质量,所述发射机和接收机站采用闭环MIMO系统。 然后,接收站可以基于所测量的信道质量来确定第一和第二信道质量指示符(CQI),然后可以向发射机站发送第一和第二CQI以直接和间接地识别第一和第二调制编码方案 (MCS)条目分别在多个有序的MCS条目中。 第二MCS条目是相对于第一MCS条目的低阶MCS条目的选定子集之一。 发射机站可以选择性地使用第一和第二识别的MCS分别在第一和第二空间信道上向接收机站发送信号。