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    • 10. 发明授权
    • Methods and systems for handling underflow and overflow in a software defined radio
    • 用于在软件定义的无线电中处理下溢和溢出的方法和系统
    • US07583735B2
    • 2009-09-01
    • US11095150
    • 2005-03-31
    • Donald R. BaumanJeffrey J. CannonJohn M. HedinSantosh K. Sonbarse
    • Donald R. BaumanJeffrey J. CannonJohn M. HedinSantosh K. Sonbarse
    • H04L27/00
    • H04L47/10H04L47/14H04L47/263H04L47/30H04L47/32H04L47/365H04L47/38H04L47/6255H04W28/10
    • Systems and methods for handling buffer overflows and underflows in a software defined radio are presented. A communications system comprises one or more radio head interface modules and a call processing software module. The radio head interface modules are adapted to communicate with the call processing software module. The call processing software module performs modulation and demodulation of voice and data streams and transmits complex RF data samples to the radio head interface modules. A first radio head interface module is adapted to create zero value data samples when complex RF data samples are not received from the call processing software module at an expected data sample rate. The first radio head interface module is further adapted to count zero value data samples created and discard a number of complex RF data samples based on the number of zero value data samples counted by the first radio head interface module.
    • 介绍了在软件定义的无线电中处理缓冲区溢出和下溢的系统和方法。 通信系统包括一个或多个无线电头接口模块和呼叫处理软件模块。 无线电头接口模块适于与呼叫处理软件模块进行通信。 呼叫处理软件模块执行语音和数据流的调制和解调,并将复杂的RF数据样本发送到无线电头接口模块。 第一无线电头接口模块适于在以预期的数据采样率从呼叫处理软件模块接收到复杂的RF数据样本时产生零值数据采样。 第一无线电头接口模块还适用于基于由第一无线电头接口模块计数的零值数据样本的数量来计数所创建的零值数据样本并丢弃多个复数RF数据采样。