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1. 发明授权

US06456850B1 Method for preventing overload conditions in communication systems 有权
标题翻译：防止通信系统过载状况的方法
公开(公告)号：US06456850B1
公开(公告)日：2002-09-24
申请号：US09375892
申请日：1999-08-17
申请人： Kyoung Kim , Alexandro Federico Salvarani
发明人： Kyoung Kim , Alexandro Federico Salvarani
IPC分类号： H04Q720
CPC分类号： H04W72/0486 , H04W52/34
摘要： A method for preventing overload conditions in a communication system. The communication system performs a call load analysis and admits a subscriber requesting admission (or responding to a page) to the system based on the result of the call load analysis. The call load analysis is based on the signal to noise power ratios of all subscribers already admitted to the communication system. External jammer signals that interfere with subscriber signals thus reducing the coverage of the communication system do not affect the call load analysis. The jammer signals therefore, do not hinder an efficient use of the capacity of the communication system. A threshold value is established and such threshold value is compared to an average call load value calculated from a plurality of instantaneous call load values. When the calculated average call load value is substantially equal to or above the established threshold, no subscribers are admitted to the communication system; subscribers are admitted when the calculated average call load value is below the established threshold. Individual subscribers whose contributions to the average call load value are deemed significant (tending to cause or actually causing overload conditions) are identified and removed from the system.
摘要翻译：一种用于防止通信系统中的过载状况的方法。通信系统执行呼叫负载分析，并基于呼叫负载分析的结果，允许向系统请求准入（或响应于页面）的用户。呼叫负载分析基于已经进入通信系统的所有用户的信噪比功率比。干扰用户信号的外部干扰信号，从而降低通信系统的覆盖范围，不影响呼叫负载分析。因此，干扰信号不妨碍有效利用通信系统的容量。建立阈值，并将该阈值与从多个瞬时呼叫负载值计算的平均呼叫负载值进行比较。当计算出的平均呼叫负载值基本上等于或高于建立的阈值时，没有用户被允许进入通信系统; 当计算的平均呼叫负载值低于建立的阈值时，订户被允许。对平均呼叫负载值的贡献的个人用户被认为是重要的（倾向于导致或实际导致过载状况）被识别并从系统中移除。

2. 发明授权

US06535723B1 Method of power control for a wireless communication system having multiple information rates 有权
标题翻译：具有多种信息速率的无线通信系统的功率控制方法
公开(公告)号：US06535723B1
公开(公告)日：2003-03-18
申请号：US09267998
申请日：1999-03-15
申请人： Frances Jiang , Raafat Edward Kamel , Quinn Li , Alexandro Federico Salvarani , Carl Francis Weaver
发明人： Frances Jiang , Raafat Edward Kamel , Quinn Li , Alexandro Federico Salvarani , Carl Francis Weaver
IPC分类号： H04B106
CPC分类号： H04W52/265 , H04W52/12 , H04W52/241 , H04W52/267 , H04W52/36 , H04W52/40
摘要： A method of controlling the power in a wireless communication system. In one embodiment of the invention, a base station determines the information rate of a signal to be transmitted to a mobile station, and obtains the variable power control scaling factor based on this information rate. The base station then transmits the variable power control scaling factor to the mobile station. The mobile station determines a target signal quality measurement for a received signal from the base station, such as a target Eb/N0, and scales the target Eb/N0 by the variable power control scaling factor. The mobile station also obtains an information rate scaling factor based on the information rate of the received signal, and further scales the target Eb/N0 by this information rate scaling factor. The mobile station then compares the target Eb/N0 to a measured Eb/N0 of the received signal. An increase in power of the received signal is requested when the measured Eb/N0 of the received signal is smaller than the scaled Eb/N0. A decrease in power of the received signal is requested when the measured Eb/N0 of the received signal is larger than the scaled Eb/N0. Providing the variable power control scaling factor to the mobile station allows frames having an information rate lower than the full rate to be transmitted at a power even lower than the power of a frame having an information rate equal to the full rate times the information scaling factor.
摘要翻译：一种在无线通信系统中控制功率的方法。在本发明的一个实施例中，基站确定要发送到移动台的信号的信息速率，并且基于该信息速率获得可变功率控制缩放因子。然后，基站向移动台发送可变功率控制缩放因子。移动台确定来自诸如目标Eb / N0的基站的接收信号的目标信号质量测量，并且通过可变功率控制缩放因子对目标Eb / N0进行缩放。移动站还根据接收信号的信息速率获得信息速率缩放因子，并且通过该信息速率缩放因子进一步缩放目标Eb / N0。然后，移动台将目标Eb / N0与接收信号的测量Eb / N0进行比较。当所测量的接收信号的Eb / N0小于缩放的Eb / N0时，请求接收信号功率的增加。当所测量的接收信号的Eb / N0大于缩放的Eb / N0时，请求接收信号功率的降低。向移动台提供可变功率控制缩放因子允许具有低于全速率的信息速率的帧以甚至低于具有等于全速率的信息速率的帧的功率乘以信息缩放因子的功率发送。

3. 发明授权

US06591110B1 Method of detecting and calculating external jammer signal power in communication systems 失效
标题翻译：在通信系统中检测和计算外部干扰信号功率的方法
公开(公告)号：US06591110B1
公开(公告)日：2003-07-08
申请号：US09604574
申请日：2000-06-27
申请人： Kyoung Il Kim , Alexandro Federico Salvarani
发明人： Kyoung Il Kim , Alexandro Federico Salvarani
IPC分类号： H04Q720
CPC分类号： H04W24/00 , H04B17/309 , H04B17/318 , H04B17/354
摘要： A method for detecting and calculating the contribution by external jammer signals to the total power received by a reverse link of a communication system. The total received power for a reverse link is measured. Calculations of load estimates based on power rise due to background noise and total Eb/N0 are performed. The contribution of external jammer signals to the total power received is calculated from the load estimates. The ability to calculate the power level of external jammer signals for a certain reverse link allows a service provider to more efficiently use the capacity of the reverse link. An average of the calculated external jammer power level can be calculated over a period of time defined by the service provider of the communication system.
摘要翻译：一种用于检测和计算外部干扰信号对由通信系统的反向链路接收的总功率的贡献的方法。测量反向链路的总接收功率。执行基于由于背景噪声和总Eb / N0引起的功率上升的负载估计。外部干扰信号对接收到的总功率的贡献由负载估计值计算。计算特定反向链路的外部干扰信号的功率电平的能力允许服务提供商更有效地使用反向链路的容量。可以在由通信系统的服务提供商定义的时间段内计算所计算的外部干扰功率电平的平均值。

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