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1. 发明授权

US6157830A Speech quality measurement in mobile telecommunication networks based on radio link parameters 失效
标题翻译：基于无线电链路参数的移动电信网络语音质量测量
公开(公告)号：US6157830A
公开(公告)日：2000-12-05
申请号：US861563
申请日：1997-05-22
申请人： Tor Bjorn Minde , Anders Tomas Uvliden , Per Anders Karlsson , Per Gunnar Heikkil.ang.
发明人： Tor Bjorn Minde , Anders Tomas Uvliden , Per Anders Karlsson , Per Gunnar Heikkil.ang.
IPC分类号： H04B7/26 , H04L1/20 , H04W24/00 , H04Q7/20 , G10L15/00 , H04B17/00
CPC分类号： H04W24/00 , H04L1/20
摘要： A method and system for measuring the speech quality in a mobile cellular telecommunications network using available radio link parameters is disclosed herein. In a preferred embodiment, the method includes receiving a set of radio link parameters, as defined in a standard or otherwise available, such as the BER, FER, RxLev, handover statistics, soft information, and speech energy. Temporal information is obtained from the radio link parameters to create a set of temporal parameters which can be statistically analyzed, for example, for the maximum and minimum, mean, standard deviation, and autocorrelation values for a time interval. The temporal parameters are combined to yield a set of correlated parameters that are more closely related to the speech quality. An estimator then uses the correlated parameters to calculate an estimate for the speech quality. The method of the present invention takes advantage of temporal information and correlated relationships from the transmitted parameters. Furthermore, the method is inherently simple and reliable as compared to prior art methods. Still further, the technique provides a method that allows operators to monitor quality conditions throughout the network.
摘要翻译：本文公开了一种使用可用无线电链路参数测量移动蜂窝电信网络中的语音质量的方法和系统。在一个优选实施例中，该方法包括接收一组无线电链路参数，如标准中定义的或其他可用的，如BER，FER，RxLev，切换统计，软信息和语音能量。从无线电链路参数获得时间信息以产生一组可以统计分析的时间参数，例如对于时间间隔的最大和最小，平均值，标准偏差和自相关值。时间参数被组合以产生与语音质量更密切相关的一组相关参数。然后，估计器使用相关参数来计算语音质量的估计。本发明的方法利用来自发送参数的时间信息和相关关系。此外，与现有技术方法相比，该方法本身是简单和可靠的。此外，该技术提供了允许操作者监视整个网络的质量状况的方法。

2. 发明授权

US06201960B1 Speech quality measurement based on radio link parameters and objective measurement of received speech signals 失效
标题翻译：基于无线电链路参数和接收到的语音信号的客观测量的语音质量测量
公开(公告)号：US06201960B1
公开(公告)日：2001-03-13
申请号：US08881750
申请日：1997-06-24
申请人： Tor Björn Minde , Anders Tomas Uvliden , Per Anders Karlsson , Per Gunnar Heikkilä
发明人： Tor Björn Minde , Anders Tomas Uvliden , Per Anders Karlsson , Per Gunnar Heikkilä
IPC分类号： H04Q720
CPC分类号： H04W24/00
摘要： An improved method and system of measuring the perceived speech quality in mobile telecommunications networks is disclosed herein. In an embodiment of the invention, the method uses both radio link parameters and an objective measuring technique performed on received signals to estimate the speech quality perceived by the end-user. A radio link processing stage extracts temporal information from a set of available radio link parameters such as the BER, FER, RxLev, handover statistics, soft information, and speech energy. Concurrently, a speech processing stage is used to process a sequence of original signals and received signals, obtained from the output of a telecommunications system. The signal sequences are processed by an objective measuring technique such as Perceptual Speech Quality Measure (PSQM). The outputs from the radio link processing and speech processing stages are utilized to calculate an estimate for speech quality. Furthermore, a weight may be given to radio link processing and speech processing in accordance with their performance under various conditions such that the overall speech quality is calculated with respect to the best approach.
摘要翻译：本文公开了一种测量移动电信网络中的感知语音质量的改进方法和系统。在本发明的实施例中，该方法使用无线电链路参数和对接收到的信号执行的客观测量技术来估计终端用户感知到的语音质量。无线链路处理级从诸如BER，FER，RxLev，切换统计，软信息和语音能量的一组可用无线电链路参数提取时间信息。同时，语音处理级用于处理从电信系统的输出获得的原始信号和接收信号的序列。信号序列通过诸如感知语音质量测量（PSQM）的客观测量技术来处理。来自无线电链路处理和语音处理阶段的输出用于计算语音质量的估计。此外，可以根据其在各种条件下的性能给予无线电链路处理和语音处理的权重，使得相对于最佳方法计算整体语音质量。

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