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    • 1. 发明申请
    • DYNAMIC CHANNEL QUALITY REPORTING IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中的动态通道质量报告
    • US20080101280A1
    • 2008-05-01
    • US11860386
    • 2007-09-24
    • Aziz GholmiehPeter RauberStein Lundby
    • Aziz GholmiehPeter RauberStein Lundby
    • H04Q7/00
    • H04L1/0026
    • Techniques for reporting channel quality indicators (CQIs) are described. Data activity at a receiver may be determined, and CQI reporting by the receiver may be adjusted based on the determined data activity. In one design, CQI reporting may be enabled for a time window around each expected packet arrival for a periodic or quasi-periodic transmission and may be suspended outside of the time window. In another design, CQI reporting may be varied based on ACK/NACK feedback. In yet another design, CQIs may be sent at a first rate when data activity is not detected and at a second rate faster than the first rate when data activity is detected. In yet another design, CQIs may be sent only during discontinuous transmission (DTX) ON periods when data activity is not detected and may be sent during both DTX ON and OFF periods when data activity is detected.
    • 描述用于报告信道质量指示符(CQI)的技术。 可以确定接收机处的数据活动,并且可以基于所确定的数据活动来调整接收机的CQI报告。 在一种设计中,可以针对周期性或准周期性传输的每个预期分组到达周围的时间窗口启用CQI报告,并且可以暂停在时间窗口之外。 在另一种设计中,可以基于ACK / NACK反馈来改变CQI报告。 在另一种设计中,当数据活动未被检测到时,可以以第一速率发送CQI,并且在检测到数据活动时以比第一速率快的第二速率发送CQI。 在另一种设计中,仅在不检测到数据活动的不连续传输(DTX)ON周期期间发送CQI,并且可以在检测到数据活动时在DTX ON和OFF周期期间发送CQI。