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    • 1. 发明授权
    • System for increasing the call capacity of a wireless communication system
    • 用于增加无线通信系统的呼叫容量的系统
    • US06501736B1
    • 2002-12-31
    • US09272130
    • 1999-03-19
    • Kenneth Frank SmolikShawn S. Yu
    • Kenneth Frank SmolikShawn S. Yu
    • H04L1226
    • H04W52/34H04W24/00H04W28/18H04W28/22H04W48/00H04W52/26
    • The system for increasing the call capacity of a wireless communications system degrades voice quality of the communications connections within a predetermined limit in order to increase the efficiency of the available RF spectrum as measured by the call carrying capacity of this allocated RF spectrum. This is accomplished by adjusting the transmission rate of the speech coder at the mobile subscriber unit and/or the speech coder that may be located at the mobile switching center so that the call carrying capacity of the wireless communications system is therefore increased. Additionally, the situation of call blocking is monitored to determine if frame error rate targets should be adjusted to further increase the call capacity. At times when the wireless system is not experiencing peak usage, the voice quality is restored to normal levels. The term “mobile subscriber unit” does not imply that the mobile unit is restricted to a moving vehicle. The present state of the art includes the use of mobile subscriber units in fixed wireless applications as an alternative to traditional wire telephony services.
    • 用于增加无线通信系统的呼叫容量的系统将通信连接的语音质量降低到预定限度内,以便通过该分配的RF频谱的呼叫承载能力来测量可用RF频谱的效率。 这是通过调整可能位于移动交换中心的移动用户单元和/或语音编码器处的语音编码器的传输速率来实现的,从而增加了无线通信系统的呼叫承载能力。 此外,监控呼叫阻塞的情况,以确定是否应调整帧错误率目标以进一步增加呼叫容量。 无线系统没有经历峰值使用时,语音质量恢复到正常水平。 术语“移动用户单元”并不意味着移动单元被限制在移动的车辆上。 现有技术包括在固定无线应用中使用移动用户单元作为传统有线电话服务的替代。
    • 2. 发明授权
    • System for automated determination of handoff neighbor list for cellular
communication systems
    • 用于蜂窝通信系统的切换邻居列表的自动确定的系统
    • US6119005A
    • 2000-09-12
    • US85422
    • 1998-05-27
    • Kenneth Frank Smolik
    • Kenneth Frank Smolik
    • H04B7/26H04W36/08H04W36/30H04Q7/20H04B7/212H04Q7/00
    • H04W36/0083H04B7/2628
    • The system for automated determination of handoff neighbor list uses the data collected from mobile subscriber units to automatically update the handoff neighbor list. The mobile subscriber unit produces Pilot Strength Measurement (PSM) data that is indicative of the relative signal strength measured at the mobile subscriber unit from a plurality of pilot channels. The mobile subscriber unit transmits this data, along with a list of viable pilot channel candidates as determined by the mobile subscriber unit, to the base station serving the existing call. The system for automated determination of handoff neighbor list maintains a data structure that stores data indicative of the number of instances that a pilot channel is recommended, the sum of power levels that were measured by the various mobile subscriber units for these instances. This data is processed to determine a metric for each data structure in the list, with the metric in the present embodiment being a function of the number of occurrences multiplied by a weighting factor summed with the sum of power levels.
    • 用于自动确定切换邻居列表的系统使用从移动用户单元收集的数据来自动更新切换邻居列表。 移动用户单元产生指示从多个导频信道在移动用户单元处测量的相对信号强度的导频强度测量(PSM)数据。 移动用户单元将该数据连同由移动用户单元确定的可行的导频信道候选列表一起发送到服务于现有呼叫的基站。 用于自动确定越区切换邻居列表的系统保持数据结构,其存储指示导频信道被推荐的实例数量的数据,这些实例的各种移动用户单元测量的功率电平之和。 处理该数据以确定列表中每个数据结构的度量,其中本实施例中的度量是乘以与功率电平之和相加的加权因子的出现次数的函数。
    • 5. 发明授权
    • System and method for warning of and providing greater immunity from an impeding call drop in a digital wireless system
    • 用于在数字无线系统中警告并提供更大的免受阻碍呼叫掉落的系统和方法
    • US06381455B1
    • 2002-04-30
    • US09173349
    • 1998-10-15
    • Kenneth Frank Smolik
    • Kenneth Frank Smolik
    • H04Q732
    • H04L1/0057H04L1/0009H04L1/0014
    • A system and method are disclosed for providing a warning of, and greater immunity from, an impending call drop in a digital wireless telecommunications system. During normal operations, data is transmitted at an initial information frame rate and a corresponding initial physical frame rate. Upon the data transmission producing errors in excess of a threshold, which indicates an impending call drop, the initial information frame rate is reduced while error correction codes are introduced into the data transmission to maintain the initial physical frame rate. The reduction in the information frame rate produces a subtle yet noticeable change in acoustic voice quality, which serves as a warning of the impending call drop. The introduction of error correction codes into the transmission provides greater immunity to the impending call drop by improving data integrity.
    • 公开了一种系统和方法,用于在数字无线电信系统中提供即将来临的呼叫丢失的警告和更大的抗扰性。 在正常操作期间,以初始信息帧速率和对应的初始物理帧速率发送数据。 当数据传输产生超过阈值的错误,其指示即将到来的呼叫丢弃时,初始信息帧速率降低,而纠错码被引入到数据传输中以维持初始物理帧速率。 信息帧速率的降低产生了声音质量的微妙但明显的变化,其作为即将到来的呼叫下降的警告。 通过提高数据完整性,将错误纠正码引入到传输中对即将发生的呼叫丢弃提供了更大的抗扰度。