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CN1663205B VOIP发射机和接收机设备及其方法 有权 转让

VOIP发射机和接收机设备及其方法
摘要：
一种基于互联网协议的语音(VOIP)的接收机(630)，和发射机(606)一起工作，接收在VOIP无线接口(112)上传输的代表语音说话的一序列语音分组。接收分组缓冲器(120)在接收之后、回放重组的语音之前缓存接收到的语音分组序列。在程序控制下操作的处理器(650)确定代表语音说话的分组序列中第一分组的发射缓冲器(108)延迟。控制处理器(650)进一步根据发射缓冲器(108)延迟在接收分组缓冲器(120)中设定规定的延迟量，从而发射缓冲器延迟+接收缓冲器延迟＝预定总延迟。接收缓冲器(120)的状态由发射机侧监测并跟踪或反馈回发射机侧，以通过使用CDMA软容量(200)、基于链路的优先化(300)、实时分组优先化(400)和/或声码器(624)速率变化(500)来最小化接收缓冲器(120)的欠载运行。
摘要（英）：

A Voice Over Internet Protocol (VOIP) receiver (630), operating in conjunction with a transmitter (606) receives a sequence of voice packets representing a speech utterance transmitted over a VOIP wireless interface (112). A receive packet buffer (120) buffers the received sequence of voice packets after receipt and before playback of reconstructed speech. A processor (650), operating under program control, determines a transmission buffer (108) delay of a first packet in the sequence of packets representing the speech utterance. The control processor (650) further sets a prescribed amount ofdelay in the receive packet buffer (120) based upon the transmission buffer (108) delay so that the transmission buffer delay+receive buffer delay=a predetermined total delay. The status of the receiver buffer (120) is monitored and tracked by or fed back to the transmitter side to minimize receive buffer (120) under-runs by use of CDMA soft capacity (200), link dependent prioritization (300), real-time packet prioritization (400) and/or variation of vocoder (624) rates (500).

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