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    • 4. 发明申请
    • Transmission power reduction in interference limited nodes
    • 干扰限制节点的传输功率降低
    • US20090239569A1
    • 2009-09-24
    • US12382525
    • 2009-03-18
    • Martin DottlingMichael FarberAndreas LobingerJurgen MichelBernhard Raaf
    • Martin DottlingMichael FarberAndreas LobingerJurgen MichelBernhard Raaf
    • H04B7/005
    • H04W52/243H04W52/34
    • A method for changing a downlink transmission power level can include receiving information about interference noise. When the interference noise satisfied a predefined level, the downlink transmission power level can be changed. Typically, the transmission power level can be decreased when the interference noise is above a predefined value. The transmission power level change can be coordinated (e.g. coordination in terms of power step size, in terms of frequency portion to which the power change is applied and in terms of time when to apply the transmission power change) with transmission power level changes in other cells. Also, interferences levels may be reassessed following the first transmission power change and the power levels are changes a second time. Optionally, only a portion of the transmission bandwidth is changed or only specific DL physical channels are considered.
    • 用于改变下行链路传输功率电平的方法可以包括接收关于干扰噪声的信息。 当干扰噪声满足预定义的水平时,可以改变下行链路传输功率电平。 通常,当干扰噪声高于预定值时,可以减小发射功率电平。 可以协调发射功率电平变化(例如,在功率阶跃尺寸上的协调,关于施加功率变化的频率部分,以及应用发射功率变化的时间)与其他发射功率电平变化 细胞。 此外,干扰水平可以在第一次发射功率改变之后重新评估,并且功率电平第二次改变。 可选地,只有一部分传输带宽被改变,或仅考虑特定的DL物理信道。