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    • 5. 发明授权
    • Method and apparatus in a two-way radio messaging unit for limiting a total transmission duration within a sliding time window
    • 用于限制滑动时间窗内总传输持续时间的双向无线电消息单元中的方法和装置
    • US06470003B1
    • 2002-10-22
    • US09455674
    • 1999-12-07
    • Brian Keith SmithMichael Scott Pieper
    • Brian Keith SmithMichael Scott Pieper
    • H04J300
    • H04W84/025H04B7/2656H04L1/16
    • A processing system (206) defines (302) a plurality of bins (230) within a sliding time window, each bin for storing a total transmit duration of a predetermined number of frames assigned to each bin. The processing system then determines (310) a mean transmit duration per frame for a next one of the plurality of bins to be processed. The processing system subtracts (312) the mean transmit duration per frame from the total transmit duration of the one of the plurality of bins, when a next frame begins to be processed; and calculates (314) a transmit duty cycle for the sliding time window, the transmit duty cycle calculated as if a requested transmit duration for the next frame were to be allowed. The processing system also delays (316) a transmission of the next frame, when the transmit duty cycle is greater than a maximum allowable transmit duty cycle.
    • 处理系统(206)在滑动时间窗内定义(302)多个箱(230),每个仓用于存储分配给每个仓的预定数量的帧的总发送持续时间。 处理系统然后确定(310)待处理的多个箱中的下一个的每帧的平均发送持续时间。 当下一帧开始被处理时,处理系统从多个箱中的一个的总发送持续时间中减去(312)每帧的平均发送持续时间; 并计算(314)滑动时间窗口的发射占空比,发射占空比被计算好像是否允许下一帧的请求发射持续时间。 当发射占空比大于最大允许发射占空比时,处理系统还延迟(316)下一帧的传输。