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    • 33. 发明授权
    • Method and apparatus for throttling audio packets according to gateway processing capacity
    • 根据网关处理能力对音频数据包进行节流的方法和装置
    • US06856613B1
    • 2005-02-15
    • US09475751
    • 1999-12-30
    • James Murphy
    • James Murphy
    • H04L12/56H04L29/06H04M7/00H04L12/66H04L12/28
    • H04L65/104H04L29/06027H04L47/10H04L47/18H04L47/2416H04L47/29H04L47/30H04L47/365H04L65/103H04L65/607H04L65/80H04M7/1275
    • Rather than dropping packets, the invention throttles the rate that audio packets are output from a voice gateway by increasing the VoIP packet size. An encoder in the voice gateway encodes audio signals into audio packets. A processor in the voice gateway then switches the audio packets to the IP network. The invention throttles the rate that these VoIP packets are switched from the voice gateway by varying the number of samples of the incoming audio signals that are encoded into each packet payload. By increasing the packet payload size in the VoIP packets, the voice gateway can switch the same amount of audio data in fewer VoIP packets. Producing fewer VoIP packets increases the available capacity of the voice gateway for processing audio signals for more calls. In other words, encoding more audio data into each VoIP packet keeps the voice gateway from having to drop packets. If capacity in the voice gateway increases (the number of incoming calls decreases), the voice gateway can resume generating VoIP packets at the original packet size.
    • 本发明不是丢弃分组,而是通过增加VoIP分组大小来限制音频分组从语音网关输出的速率。 语音网关中的编码器将音频信号编码成音频分组。 然后语音网关中的处理器将音频数据包切换到IP网络。 本发明通过改变编码到每个分组有效载荷中的输入音频信号的样本数来限制这些VoIP分组从语音网关切换的速率。 通过增加VoIP分组中的分组有效载荷大小,语音网关可以在较少的VoIP分组中切换相同数量的音频数据。 生产较少的VoIP数据包增加了语音网关的可用容量,用于处理更多呼叫的音频信号。 换句话说,将更多的音频数据编码到每个VoIP分组中使语音网关不必丢弃分组。 如果语音网关的容量增加(呼入次数减少),语音网关可以恢复原始分组大小的VoIP分组。