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    Group decision rule in code tracking using a delay lock loop (DLL)
    1.
    发明授权
    Group decision rule in code tracking using a delay lock loop (DLL) 有权
    使用延迟锁定循环（DLL）的代码跟踪中的组决策规则

    公开(公告)号：US07310365B2

    公开(公告)日：2007-12-18

    申请号：US10699219

    申请日：2003-10-31

    申请人： Young-Chai Ko ,  Gibong Jeong ,  Yuan Kang Lee

    发明人： Young-Chai Ko ,  Gibong Jeong ,  Yuan Kang Lee

    IPC分类号： H04B1/707

    CPC分类号： H04B1/7085 ,  H04B1/7117

    摘要： System and method for code acquisition in a wireless communications system with a delay lock loop. A preferred embodiment comprises assigning a delay lock loop (DLL) to each path in a received signal with multipath, adjusting each DLL to maximize sample strength, grouping samples that are less than a first threshold apart into groups, adjusting DLL timing of samples in groups, regrouping groups that are less than a second threshold apart, applying a group decision to regrouped groups, and repeating the regrouping and applying until all groups are greater than the second threshold apart.

    摘要翻译： 具有延迟锁定环路的无线通信系统中的代码采集系统和方法。 优选实施例包括向接收到的具有多路径的信号中的每个路径分配延迟锁定环（DLL），调整每个DLL以使样本强度最大化，将小于第一阈值的样本分组成组，将组中的样本的DLL定时调整 ，重新组合小于第二阈值的组，将组决策应用于重新组合的组，并重复重组和应用，直到所有组大于第二阈值。

    System, Method, and Computer-Readable Medium for Selecting a Network for Connectivity and Handover Based on Application Requirements
    2.
    发明申请
    System, Method, and Computer-Readable Medium for Selecting a Network for Connectivity and Handover Based on Application Requirements 有权
    系统，方法和计算机可读介质，用于根据应用需求选择网络进行连接和切换

    公开(公告)号：US20080101292A1

    公开(公告)日：2008-05-01

    申请号：US11929066

    申请日：2007-10-30

    申请人： Chaitali Sengupta ,  Yuan Kang Lee

    发明人： Chaitali Sengupta ,  Yuan Kang Lee

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/24 ,  H04W88/06 ,  Y02D70/124 ,  Y02D70/14

    摘要： A system, method, and computer-readable medium are provided for choosing a network for connection and handover based on the application requirements of a multi-mode, multi-radio user equipment. The selection of the network for connectivity and handover is based on one or more of the invoking of an application, the invoking of a second application, and the closing of an application.

    摘要翻译： 提供了一种系统，方法和计算机可读介质，用于基于多模式，多无线电用户设备的应用需求来选择用于连接和切换的网络。 用于连接和切换的网络的选择基于一个或多个调用应用程序，调用第二应用程序以及关闭应用程序。

    System, method, and computer-readable medium for user equipment decision-making criteria for connectivity and handover
    3.
    发明授权
    System, method, and computer-readable medium for user equipment decision-making criteria for connectivity and handover 有权
    用于连接和切换的用户设备决策标准的系统，方法和计算机可读介质

    公开(公告)号：US08923852B2

    公开(公告)日：2014-12-30

    申请号：US11929231

    申请日：2007-10-30

    申请人： Chaitali Sengupta ,  Yuan Kang Lee

    发明人： Chaitali Sengupta ,  Yuan Kang Lee

    IPC分类号： H04W72/00 ,  H04W36/24 ,  H04W88/06

    CPC分类号： H04W52/0264 ,  H04W36/14 ,  H04W36/24 ,  H04W48/18 ,  H04W52/0277 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/23

    摘要： A system, method, and computer-readable medium are provided for decision-making criteria in a multi-mode, multi-radio user equipment to choose which radio network to use for connectivity and handover. Decision making depends on a number of different criteria: a user profile that specifies one or more user preference connectivity attributes, available applications of the user equipment, a service subscription of a user associated with the user equipment, a battery monitor of the user equipment, a respective link metrics indicator for each of the plurality of access networks, and application support capabilities of the plurality of access networks.

    摘要翻译： 提供了一种系统，方法和计算机可读介质，用于多模，多无线电用户设备中的决策标准，以选择用于连接和切换的无线电网络。 决策取决于许多不同的标准：指定一个或多个用户偏好连接属性的用户简档，用户设备的可用应用程序，与用户设备相关联的用户的服务订阅，用户设备的电池监视器， 用于所述多个接入网络中的每一个的相应链路度量指示符以及所述多个接入网络的应用支持能力。

    Spread spectrum time tracking
    5.
    发明授权
    Spread spectrum time tracking 有权
    扩频时间跟踪

    公开(公告)号：US06873667B2

    公开(公告)日：2005-03-29

    申请号：US09755799

    申请日：2001-01-05

    申请人： Aris Papasakellariou ,  Yuan Kang Lee

    发明人： Aris Papasakellariou ,  Yuan Kang Lee

    IPC分类号： H04B1/7085 ,  H04B1/7107 ,  H04B1/7117 ,  H04B7/10 ,  H04B1/18 ,  H04B7/02

    CPC分类号： H04B1/7107 ,  H04B1/7085 ,  H04B1/7117

    摘要： Time tracking units with decision statistics mitigating or correcting for influences from nearby interfering paths. Interference mitigation is accomplished by appropriately selecting the parameters of the time tracking unit so that the contribution of the interference on the decision statistics of the time tracking unit is minimized. Interference cancellation is accomplished by evaluating and subtracting of the effect from the interfering paths on the decision statistics of the time tracking unit. Both urban and indoor communications may incorporate the interference avoidance or interference correction either in each time tracking unit of a rake-type receiver by inter-unit communication of timing adjustments and path energies or by software within a common processor.

    摘要翻译： 具有决策统计量的时间跟踪单元减轻或纠正来自附近干扰路径的影响。 通过适当地选择时间跟踪单元的参数来实现干扰减轻，使得干扰对时间跟踪单元的判定统计的贡献最小化。 干扰消除是通过对干扰路径对时间跟踪单元的判定统计的影响进行评估和减去来实现的。 城市和室内通信可以通过定时调整和路径能量之间的单位间通信或通过公共处理器内的软件来整合耙式接收机的每个时间跟踪单元中的干扰避免或干扰校正。

    Decoding system for variable-rate convolutionally-coded data sequence
    6.
    发明授权
    Decoding system for variable-rate convolutionally-coded data sequence 有权
    用于可变速率卷积编码数据序列的解码系统

    公开(公告)号：US06393074B1

    公开(公告)日：2002-05-21

    申请号：US09224047

    申请日：1998-12-31

    申请人： Giridhar D. Mandyam ,  Yuan Kang Lee ,  Alberto Guiterrez

    发明人： Giridhar D. Mandyam ,  Yuan Kang Lee ,  Alberto Guiterrez

    IPC分类号： H04L108

    CPC分类号： H04L1/0059 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/08 ,  H04L1/201

    摘要： A multi-rate data receiver includes a decoding section for processing the received encoded data symbols via multiple paths to make a determination as to the rate of the received data. A statistical analysis is made of the incoming data prior to decoding, and rate selection made among one of the multiple highest rates. If the determination is not that the data is associated with the highest rate, the data is processed through multiple parallel decoding paths and the decoded data on the output thereof evaluated to determine which of the multiple paths is acceptable and associated with the incoming data rate.

    摘要翻译： 多速率数据接收机包括用于经由多个路径处理所接收的编码数据符号以对接收数据的速率进行确定的解码部分。 对解码之前的输入数据进行统计分析，并以多个最高速率之一进行速率选择。 如果确定不是数据与最高速率相关联，则通过多个并行解码路径处理数据，并且对其输出上的解码数据进行评估，以确定哪个多路径是可接受的并且与输入数据速率相关联。

    Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements
    7.
    发明授权
    Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements 有权
    使用滑窗加权QoS测量的低功率功率控制的方法和装置

    公开(公告)号：US07330504B2

    公开(公告)日：2008-02-12

    申请号：US10303986

    申请日：2002-11-25

    申请人： Wei Lin ,  Yuan Kang Lee

    发明人： Wei Lin ,  Yuan Kang Lee

    IPC分类号： H04B3/46 ,  H04B17/00 ,  H04B1/00 ,  H04B7/00

    CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/228

    摘要： A system and method for adjusting the power control target for a spread-spectrum communication system 110 is disclosed. A preferred embodiment comprises correcting a power control target 128 based upon the difference between a filtered series of actual error signals 124 and the expected number of errors 126 over a properly determined time window. By using a filtered series of actual error signals, the power control target update step-size is adaptive to the channel conditions, and the power-rise is reduced, thereby reducing power requirements and signal dropouts. The invention finds application, for example, in personal communication devices such as cellular telephones and may be implemented using a digital signal processor (DSP).

    摘要翻译： 公开了一种用于调整扩频通信系统110的功率控制目标的系统和方法。 优选实施例包括基于滤波后的一系列实际误差信号124与正确确定的时间窗口上的期望错误数量126之间的差异来校正功率控制目标128。 通过使用经滤波的一系列实际误差信号，功率控制目标更新步长适应于信道条件，并且功率增加减小，从而降低功率需求和信号丢失。 本发明可以应用于诸如蜂窝电话的个人通信设备中，并且可以使用数字信号处理器（DSP）来实现。

    Method for maintaining timing in a CDMA rake receiver
    8.
    发明授权
    Method for maintaining timing in a CDMA rake receiver 有权
    用于在CDMA耙式接收机中维持定时的方法

    公开(公告)号：US06792031B1

    公开(公告)日：2004-09-14

    申请号：US09691576

    申请日：2000-10-18

    申请人： Sundararajan Sriram ,  Yuan Kang Lee ,  Katherine G. Brown ,  Zhenguo Gu

    发明人： Sundararajan Sriram ,  Yuan Kang Lee ,  Katherine G. Brown ,  Zhenguo Gu

    IPC分类号： H04B169

    CPC分类号： H04B1/7117 ,  H04B1/7095 ,  H04B1/7113

    摘要： A system and method for maintaining timing in a CDMA rake receiver has a global chip counter that counts CDMA signal chips as they arrive at the CDMA rake receiver. A local pseudo-noise (PN) sequence replica of the incoming CDMA signal is generated and used to perform a sliding window correlation of the locally generated PN sequence replica with the incoming signal to correlate the CDMA signal timing relative to stored CDMA signal chip counts. The PN sequence timing is maintained relative to GCC, which avoids having to keep track of absolute time within each Rake finger.

    摘要翻译： 用于维持CDMA瑞克接收机定时的系统和方法具有对CDMA信号芯片到达CDMA耙式接收机时进行计数的全局芯片计数器。 产生输入CDMA信号的本地伪噪声（PN）序列副本，并用于执行本地生成的PN序列副本与输入信号的滑动窗口相关，以使CDMA信号定时相对于存储的CDMA信号芯片计数相关。 PN序列定时相对于GCC保持，这避免了必须跟踪每个耙指中的绝对时间。

    Psuedo-random noise sequence generating system
    9.
    发明授权
    Psuedo-random noise sequence generating system 有权
    伪随机噪声序列发生系统

    公开(公告)号：US06594680B1

    公开(公告)日：2003-07-15

    申请号：US09475932

    申请日：1999-12-30

    申请人： Zhenguo Gu ,  Yuan Kang Lee

    发明人： Zhenguo Gu ,  Yuan Kang Lee

    IPC分类号： G06F102

    CPC分类号： H04J13/10 ,  G06F7/584 ,  H04J13/0022

    摘要： Multiple PN sequences are generated in parallel using multiple LFSRs (10) or multiple mask circuits (40) coupled to a single LFSR. The offsets between PN sequences can be individually and independently set, either by setting the initial state in an LFSR (10) or setting a mask vector in a mask circuit (40). The LFSRs can be configured in real time to produce one or more blocks of PN sequence bits or to produce disjoint PN sequence bits. Zero insertion may be automatically generated in the LFSRs without additional mask circuitry. PN generating circuits may use either relative or absolute addressing, and may accommodate two levels of relative addressing. Further, one embodiment provides relative addressing without using masks.

    摘要翻译： 使用耦合到单个LFSR的多个LFSR（10）或多个掩模电路（40）并行地生成多个PN序列。 可以通过在LFSR（10）中设置初始状态或在掩码电路（40）中设置掩码向量来单独和独立地设置PN序列之间的偏移。 可以实时配置LFSR以产生一个或多个PN序列比特块或产生不相交的PN序列比特。 在LFSR中可以自动生成零插入，无需额外的掩码电路。 PN发生电路可以使用相对寻址或绝对寻址，并且可以适应两个相对寻址的级别。 此外，一个实施例提供了不使用掩模的相对寻址。