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    SYNCHRONIZATION DEVICE AND METHOD FOR WIRELESS COMMUNICATION PACKETS
    1.
    发明申请
    SYNCHRONIZATION DEVICE AND METHOD FOR WIRELESS COMMUNICATION PACKETS 审中-公开
    用于无线通信分组的同步设备和方法

    公开(公告)号：US20080101516A1

    公开(公告)日：2008-05-01

    申请号：US11925121

    申请日：2007-10-26

    申请人： Koon Shik Cho ,  Seung Han Ko ,  Jae Hyung Lee ,  Kwang Mook Lee ,  Sang Hyun Min ,  Sang Ho Lee ,  U Sang Lee

    发明人： Koon Shik Cho ,  Seung Han Ko ,  Jae Hyung Lee ,  Kwang Mook Lee ,  Sang Hyun Min ,  Sang Ho Lee ,  U Sang Lee

    IPC分类号： H04L7/02

    CPC分类号： H04L7/08

    摘要： Provided is a synchronization device for wireless communication packets, the synchronization device including an A/D (analog/digital) converter that converts an analog input signal applied from outside into a digital signal; a correlation calculating section that is connected to the A/D converter and correlates the converted input signal with a preset reference code so as to calculate a correlation value; a threshold setting section that is connected to the correlation calculating section and sets a threshold value of the correlation value; a maximum correlation detecting section that is connected to the correlation calculating section and the threshold setting section, compares the correlation value with the threshold value, detects the position of the maximum correlation value within each symbol of the input signal when the correlation value is larger than the threshold value, and judges whether a difference in position between the maximum correlation values of consecutive symbols is equal to the period of one symbol or not; a preamble detecting section that is connected to the correlation calculating section and the maximum correlation detecting section and outputs a preamble detection signal when the difference is equal to the period of one symbol; and a data detecting section that receives data of the input signal when the preamble detection signal is applied.

    摘要翻译： 提供了一种用于无线通信分组的同步装置，该同步装置包括将从外部施加的模拟输入信号转换为数字信号的A / D（模拟/数字）转换器; 相关计算部分，连接到A / D转换器，并将转换的输入信号与预置的参考码相关联，以便计算相关值; 阈值设定部，与相关计算部连接并设定相关值的阈值; 连接到相关计算部分和阈值设定部分的最大相关检测部分将相关值与阈值进行比较，当相关值大于该值时，检测输入信号的每个符号内的最大相关值的位置 阈值，并且判断连续符号的最大相关值之间的位置差是否等于一个符号的周期; 前同步码检测部，其连接到所述相关计算部和所述最大相关检测部，并且当所述差等于一个符号的周期时，输出前同步码检测信号; 以及数据检测部分，当应用前导码检测信号时，接收输入信号的数据。

    SYSTEM ON CHIP WITH LOW POWER MODE AND METHOD OF DRIVING THE SAME
    2.
    发明申请
    SYSTEM ON CHIP WITH LOW POWER MODE AND METHOD OF DRIVING THE SAME 审中-公开
    低功率模式下的芯片系统及其驱动方法

    公开(公告)号：US20090083571A1

    公开(公告)日：2009-03-26

    申请号：US12104956

    申请日：2008-04-17

    申请人： Koon Shik Cho ,  Seung Han Ko ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    发明人： Koon Shik Cho ,  Seung Han Ko ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    IPC分类号： G06F1/04

    CPC分类号： G06F1/3203 ,  G06F1/324 ,  G06F1/3287 ,  Y02D10/126 ,  Y02D10/171 ,  Y02D50/20

    摘要： There are provided a system on chip (SoC) with a low power mode and a method of driving the SoC, the SoC including: a power part supplying a main clock signal and controlling analog and digital power supply at a normal mode and supplying a sub clock signal and turning analog power off at a low power mode; a radio frequency (RF) part generating the main clock signal at the normal mode and stopping operation at the low power mode, under the control of the power part; and a control part operating according to the main clock signal at the normal mode and operating according to the sub clock signal, under to the control of the power part.

    摘要翻译： 提供了具有低功率模式的片上系统（SoC）和驱动SoC的方法，SoC包括：提供主时钟信号的电源部分，并以正常模式控制模拟和数字电源，并提供子 时钟信号，并在低功耗模式下关闭模拟电源; 在功率部分的控制下，以正常模式产生主时钟信号并在低功率模式下停止操作的射频（RF）部分; 以及控制部，其在正常模式下根据主时钟信号进行工作，并根据子时钟信号在功率部分的控制下工作。

    RF receiver having timing offset recovery function and timing offset recovery method using thereof
    3.
    发明授权
    RF receiver having timing offset recovery function and timing offset recovery method using thereof 有权
    RF接收机具有定时偏移恢复功能和使用其定时偏移恢复方法

    公开(公告)号：US08184742B2

    公开(公告)日：2012-05-22

    申请号：US12137463

    申请日：2008-06-11

    申请人： U Sang Lee ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    发明人： U Sang Lee ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    IPC分类号： H03K9/00 ,  H04L27/00

    CPC分类号： H04L7/043 ,  H04B1/7075

    摘要： A preprocessing unit samples and digitalizes analog signal. A differential operation unit delays digitalized signal for a predetermined period and differentiates delayed signals. A correlation unit correlates differentiated signal with a plurality of predetermined PN code sequences. A setting unit includes a shift register having a plurality of storage locations for shifting the correlation values and sequentially storing shifted correlation values at the storage locations, respectively, a detector including the determination slots for detecting the storage location of the maximum value, and a slot setter for comparing the storage location of the maximum value from the detector with the predetermined reference storage location and shifting the determination slots by the difference therebetween. A demodulation value estimation unit estimates, as a demodulation value of the received analog signal, a symbol of a PN code sequence corresponding to the maximum value from the shifted determination slots.

    摘要翻译： 预处理单元对模拟信号进行采样和数字化。 差分操作单元在预定时间段内延迟数字化信号并区分延迟信号。 相关单元将微分信号与多个预定PN码序列相关联。 一个设置单元包括一个移位寄存器，它具有多个存储位置，用于移位相关值，并分别在存储位置依次存储偏移的相关值;检测器，包括用于检测最大值的存储位置的确定时隙; 用于将来自检测器的最大值的存储位置与预定参考存储位置进行比较，并且将确定时隙移位其间的差。 解调值估计单元从所述移位的确定时隙估计与所接收的模拟信号的解调值相对应的最大值的PN码序列的符号。

    INTERFERENCE DETECTING DEVICE AND METHOD FOR DETECTING INTERFERENCE FOR WIRELESS COMMUNICATION
    4.
    发明申请
    INTERFERENCE DETECTING DEVICE AND METHOD FOR DETECTING INTERFERENCE FOR WIRELESS COMMUNICATION 审中-公开
    用于检测无线通信干扰的干扰检测装置和方法

    公开(公告)号：US20100110913A1

    公开(公告)日：2010-05-06

    申请号：US12347846

    申请日：2008-12-31

    申请人： Sang Hyun Min ,  Soon Jin Choi ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    发明人： Sang Hyun Min ,  Soon Jin Choi ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    IPC分类号： H04L12/26

    CPC分类号： H04B17/345 ,  H04L43/16

    摘要： The present invention relates to a method for detecting interference and an interference detecting device for a wireless communication capable of improving detection accuracy of an interference signal in a wireless communication device without influencing network operation while the interference signal is detected; and, more particularly, to a method for detecting interference and an interference detecting device for a wireless communication to determine an interference signal by increasing an interference packet count according to an RSSI value, its own packet detection, gain reduction, deterioration of signal quality, the number of the same symbols, and so on and comparing an increased interference packet count value with a threshold value by using each ZigBee device as a main constituent of interference detection unlike a conventional method for detecting interference in which a ZigBee coordinator or a ZigBee router is a main constituent of interference detection.

    摘要翻译： 本发明涉及一种用于检测干扰的方法和用于无线通信的干扰检测装置，其能够在检测到干扰信号的同时不影响网络操作，提高无线通信装置中的干扰信号的检测精度; 更具体地，涉及一种用于检测干扰的方法和用于无线通信的干扰检测装置，以通过根据RSSI值，其自身的分组检测，增益减小，信号质量的劣化增加干扰分组计数来确定干扰信号， 相同符号的数量等，并且通过使用每个ZigBee设备作为干扰检测的主要成分，将增加的干扰分组计数值与阈值进行比较，这与传统的用于检测干扰的方法不同，ZigBee协调器或ZigBee路由器 是干扰检测的主要成分。

    RF RECEIVER HAVING TIMING OFFSET RECOVERY FUNCTION AND TIMING OFFSET RECOVERY METHOD USING THEREOF
    5.
    发明申请
    RF RECEIVER HAVING TIMING OFFSET RECOVERY FUNCTION AND TIMING OFFSET RECOVERY METHOD USING THEREOF 有权
    具有时序偏移功能的RF接收器和使用其的时序偏移恢复方法

    公开(公告)号：US20090168937A1

    公开(公告)日：2009-07-02

    申请号：US12137463

    申请日：2008-06-11

    申请人： U Sang LEE ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    发明人： U Sang LEE ,  Jae Hyung Lee ,  Sang Ho Lee ,  Kwang Mook Lee

    IPC分类号： H04L7/00

    CPC分类号： H04L7/043 ,  H04B1/7075

    摘要： There is provided an RF receiver recovering timing offset by shifting timing slots in response to timing offset occurring when a signal is sampled. An RF receiver having timing offset recovery function according to an aspect of the invention includes: a preprocessing unit sampling and digitalizing an analog received signal; a differential operation unit delaying the digitalized received signal from the preprocessing unit for predetermined periods of time and differentiating the delayed signals; a correlation unit correlating the differentiated received signals from the differential operation unit with a plurality of predetermined PN code sequences and sequentially outputting correlation values; a setting unit sequentially storing the correlation values from the correlation unit, detecting a maximum value among the stored correlation values, and shifting a plurality of determination slots by a difference between a storage location of the detected maximum value and a reference storage location; and a demodulation value estimation unit estimating as a demodulation value of the received signal, a symbol of a PN code sequence corresponding to the maximum value from the shifted determination slots.

    摘要翻译： 提供了一种RF接收器，通过响应于在采样信号时发生的定时偏移来移位定时时隙来恢复定时偏移。 具有根据本发明的一个方面的具有定时偏移恢复功能的RF接收机包括：预处理单元，对模拟接收信号进行采样和数字化; 差分操作单元延迟来自预处理单元的数字化接收信号预定时间段并且对延迟信号进行微分; 相关单元，将来自差分操作单元的差分接收信号与多个预定PN码序列相关，并且顺序地输出相关值; 设置单元，其顺序地存储来自所述相关单元的相关值，检测所存储的相关值中的最大值，并且通过所检测的最大值的存储位置与参考存储位置之间的差移动多个确定时隙; 以及解调值估计单元，作为所述接收信号的解调值，从所述移位的确定时隙估计与所述最大值对应的PN码序列的符号。

    Method for generating authorization key and method for negotiating authorization in communication system based on frequency overlay
    7.
    发明授权
    Method for generating authorization key and method for negotiating authorization in communication system based on frequency overlay 有权
    基于频率叠加的通信系统协商授权密钥生成方法

    公开(公告)号：US08762721B2

    公开(公告)日：2014-06-24

    申请号：US12670519

    申请日：2008-06-12

    申请人： Sun-Hwa Lim ,  Sang Ho Lee

    发明人： Sun-Hwa Lim ,  Sang Ho Lee

    IPC分类号： H04W12/04

    CPC分类号： H04L9/0844 ,  H04L63/062 ,  H04L63/0892 ,  H04L2209/80 ,  H04W12/04

    摘要： A method for a terminal including a first media access control (MAC) layer and a second MAC layer to create an authorization key includes performing a first network entry process to a base station through the first MAC layer, and performing a second network entry process for a frequency overlay to the base station through the second MAC layer. In this instance, the first network entry process includes acquiring a key for generating an authorization key through an authentication process according to an authentication method negotiated with the base station, and generating a first authorization key through the key for generating the authorization key. The second network entry process includes generating a second authorization key by using the key generated in the first network entry process for generating the authorization key.

    摘要翻译： 一种包括第一媒体接入控制（MAC）层和第二MAC层以创建授权密钥的终端的方法包括：通过第一MAC层对基站执行第一网络进入过程，并且执行第二网络进入处理， 通过第二MAC层对基站的频率覆盖。 在这种情况下，第一网络进入处理包括通过根据与基站协商的认证方法的认证处理来获取用于生成授权密钥的密钥，以及通过用于生成授权密钥的密钥生成第一授权密钥。 第二网络进入处理包括通过使用在第一网络进入处理中生成的密钥来生成授权密钥来产生第二授权密钥。

    Method and apparatus for counting multimedia broadcast and multicast services
    9.
    发明授权
    Method and apparatus for counting multimedia broadcast and multicast services 失效
    多媒体广播和组播服务计费方法和装置

    公开(公告)号：US08649312B2

    公开(公告)日：2014-02-11

    申请号：US13330629

    申请日：2011-12-19

    申请人： Dae Ik Kim ,  Jee Hyeon Na ,  Jung Mo Moon ,  Sang Ho Lee

    发明人： Dae Ik Kim ,  Jee Hyeon Na ,  Jung Mo Moon ,  Sang Ho Lee

    IPC分类号： H04H20/71 ,  G06F11/00

    CPC分类号： H04W4/06

    摘要： A method and apparatus for multimedia broadcast and multicast service (MBMS) counting is provided. A user equipment (UE) may transmit selected service information to a multi-cell and multicast coordination entity (MCE) through a target evolved node base station (eNB), every time that a service requiring counting is received or cancelled and thus, the MCE may accurately manage a number of UEs that receive a service for each eNB. Also, the use may transmit selected service information to the MCE through the target eNB every time that the UE enters a new cell and thus, the MCE may accurately manage a number of UEs that receive a service for each eNB.

    摘要翻译： 提供了一种用于多媒体广播和多播服务（MBMS）计数的方法和装置。 每当接收或取消需要计数的服务时，用户设备（UE）可以通过目标演进节点基站（eNB）向多小区和多播协调实体（MCE）发送所选择的服务信息，因此，MCE 可以准确地管理为每个eNB接收服务的多个UE。 此外，每当UE进入新小区时，使用可以通过目标eNB将选定的服务信息发送到MCE，因此，MCE可以准确地管理为每个eNB接收服务的UE的数量。